From 737cff798ab290476ab122e28fac88377149def8 Mon Sep 17 00:00:00 2001 From: Oliver Smith Date: Fri, 28 Sep 2018 08:13:40 +0200 Subject: [PATCH] Add gcc6 aport Based on the last version from Alpine, but installed to /usr/gcc6 and with pretty much everything disabled except for the C compiler. We can probably throw out a lot of patches, and make the APKBUILD much smaller. But let's focus on making it possible to compile old kernels again first. There's still a lot to do for that, see #103. --- ...truct-ix86_frame-to-machine_function.patch | 241 ++ ...ce-of-struct-ix86_frame-to-avoid-cop.patch | 69 + ...eference-of-struct-ix86_frame-to-avo.patch | 126 + main/gcc6/0004-x86-Add-mindirect-branch.patch | 2149 +++++++++++++++++ main/gcc6/0005-x86-Add-mfunction-return.patch | 1565 ++++++++++++ ...06-x86-Add-mindirect-branch-register.patch | 941 ++++++++ ...-x86-Add-V-register-operand-modifier.patch | 134 + ...direct-branch-mfunction-return-with-.patch | 299 +++ ..._REGNUM-in-indirect-thunk-processing.patch | 121 + ...ID_REGNUM-as-invalid-register-number.patch | 41 + ...mfunction-return-for-return-with-pop.patch | 456 ++++ ...-Add-TARGET_INDIRECT_BRANCH_REGISTER.patch | 1003 ++++++++ ...rate-alias-for-function-return-thunk.patch | 225 ++ main/gcc6/001_all_default-ssp-strong.patch | 215 ++ main/gcc6/002_all_default-relro.patch | 33 + .../gcc6/003_all_default-fortify-source.patch | 40 + main/gcc6/005_all_default-as-needed.patch | 241 ++ ...011_all_default-warn-format-security.patch | 43 + .../012_all_default-warn-trampolines.patch | 25 + main/gcc6/020_all_msgfmt-libstdc++-link.patch | 39 + main/gcc6/050_all_libiberty-asprintf.patch | 18 + main/gcc6/051_all_libiberty-pic.patch | 10 + .../053_all_libitm-no-fortify-source.patch | 27 + ...67_all_gcc-poison-system-directories.patch | 194 ++ .../090_all_pr55930-dependency-tracking.patch | 18 + main/gcc6/201-cilkrts.patch | 59 + main/gcc6/203-libgcc_s.patch | 56 + main/gcc6/204-linux_libc_has_function.patch | 25 + main/gcc6/205-nopie.patch | 75 + main/gcc6/207-static-pie.patch | 40 + ...in-gcc-add-musl-s390x-dynamic-linker.patch | 32 + main/gcc6/310-build-gcj-s390x.patch | 28 + main/gcc6/320-libffi-gnulinux.patch | 13 + main/gcc6/APKBUILD | 442 ++++ main/gcc6/ada-aarch64-multiarch.patch | 16 + main/gcc6/ada-fixes.patch | 35 + main/gcc6/ada-mips64.patch | 224 ++ main/gcc6/ada-musl.patch | 137 ++ main/gcc6/ada-shared.patch | 30 + main/gcc6/boehm-gc-musl.patch | 62 + main/gcc6/fix-cxxflags-passing.patch | 10 + main/gcc6/fix-gcj-iconv-musl.patch | 120 + main/gcc6/fix-gcj-musl.patch | 49 + main/gcc6/fix-gcj-stdgnu14-link.patch | 35 + .../gcc6/fix-linux-header-use-in-libgcc.patch | 44 + main/gcc6/fix-rs6000-pie.patch | 59 + main/gcc6/gcc-4.8-build-args.patch | 41 + main/gcc6/gcc-4.9-musl-fortify.patch | 11 + main/gcc6/gcc-6.1-musl-libssp.patch | 20 + main/gcc6/gcc-pure64-mips.patch | 47 + main/gcc6/gcc-pure64.patch | 89 + main/gcc6/libgcc-always-build-gcceh.a.patch | 39 + 52 files changed, 10111 insertions(+) create mode 100644 main/gcc6/0001-i386-Move-struct-ix86_frame-to-machine_function.patch create mode 100644 main/gcc6/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch create mode 100644 main/gcc6/0003-i386-Use-const-reference-of-struct-ix86_frame-to-avo.patch create mode 100644 main/gcc6/0004-x86-Add-mindirect-branch.patch create mode 100644 main/gcc6/0005-x86-Add-mfunction-return.patch create mode 100644 main/gcc6/0006-x86-Add-mindirect-branch-register.patch create mode 100644 main/gcc6/0007-x86-Add-V-register-operand-modifier.patch create mode 100644 main/gcc6/0008-x86-Disallow-mindirect-branch-mfunction-return-with-.patch create mode 100644 main/gcc6/0009-Use-INVALID_REGNUM-in-indirect-thunk-processing.patch create mode 100644 main/gcc6/0010-i386-Pass-INVALID_REGNUM-as-invalid-register-number.patch create mode 100644 main/gcc6/0011-i386-Update-mfunction-return-for-return-with-pop.patch create mode 100644 main/gcc6/0012-i386-Add-TARGET_INDIRECT_BRANCH_REGISTER.patch create mode 100644 main/gcc6/0013-i386-Don-t-generate-alias-for-function-return-thunk.patch create mode 100644 main/gcc6/001_all_default-ssp-strong.patch create mode 100644 main/gcc6/002_all_default-relro.patch create mode 100644 main/gcc6/003_all_default-fortify-source.patch create mode 100644 main/gcc6/005_all_default-as-needed.patch create mode 100644 main/gcc6/011_all_default-warn-format-security.patch create mode 100644 main/gcc6/012_all_default-warn-trampolines.patch create mode 100644 main/gcc6/020_all_msgfmt-libstdc++-link.patch create mode 100644 main/gcc6/050_all_libiberty-asprintf.patch create mode 100644 main/gcc6/051_all_libiberty-pic.patch create mode 100644 main/gcc6/053_all_libitm-no-fortify-source.patch create mode 100644 main/gcc6/067_all_gcc-poison-system-directories.patch create mode 100644 main/gcc6/090_all_pr55930-dependency-tracking.patch create mode 100644 main/gcc6/201-cilkrts.patch create mode 100644 main/gcc6/203-libgcc_s.patch create mode 100644 main/gcc6/204-linux_libc_has_function.patch create mode 100644 main/gcc6/205-nopie.patch create mode 100644 main/gcc6/207-static-pie.patch create mode 100644 main/gcc6/300-main-gcc-add-musl-s390x-dynamic-linker.patch create mode 100644 main/gcc6/310-build-gcj-s390x.patch create mode 100644 main/gcc6/320-libffi-gnulinux.patch create mode 100644 main/gcc6/APKBUILD create mode 100644 main/gcc6/ada-aarch64-multiarch.patch create mode 100644 main/gcc6/ada-fixes.patch create mode 100644 main/gcc6/ada-mips64.patch create mode 100644 main/gcc6/ada-musl.patch create mode 100644 main/gcc6/ada-shared.patch create mode 100644 main/gcc6/boehm-gc-musl.patch create mode 100644 main/gcc6/fix-cxxflags-passing.patch create mode 100644 main/gcc6/fix-gcj-iconv-musl.patch create mode 100644 main/gcc6/fix-gcj-musl.patch create mode 100644 main/gcc6/fix-gcj-stdgnu14-link.patch create mode 100644 main/gcc6/fix-linux-header-use-in-libgcc.patch create mode 100644 main/gcc6/fix-rs6000-pie.patch create mode 100644 main/gcc6/gcc-4.8-build-args.patch create mode 100644 main/gcc6/gcc-4.9-musl-fortify.patch create mode 100644 main/gcc6/gcc-6.1-musl-libssp.patch create mode 100644 main/gcc6/gcc-pure64-mips.patch create mode 100644 main/gcc6/gcc-pure64.patch create mode 100644 main/gcc6/libgcc-always-build-gcceh.a.patch diff --git a/main/gcc6/0001-i386-Move-struct-ix86_frame-to-machine_function.patch b/main/gcc6/0001-i386-Move-struct-ix86_frame-to-machine_function.patch new file mode 100644 index 000000000..ecec2bad6 --- /dev/null +++ b/main/gcc6/0001-i386-Move-struct-ix86_frame-to-machine_function.patch @@ -0,0 +1,241 @@ +From b1d2df5090abc9202a7bf2d224ac90de22908d21 Mon Sep 17 00:00:00 2001 +From: hjl +Date: Mon, 15 Jan 2018 11:27:24 +0000 +Subject: [PATCH 01/13] i386: Move struct ix86_frame to machine_function + +Make ix86_frame available to i386 code generation. This is needed to +backport the patch set of -mindirect-branch= to mitigate variant #2 of +the speculative execution vulnerabilities on x86 processors identified +by CVE-2017-5715, aka Spectre. + + Backport from mainline + 2017-06-01 Bernd Edlinger + + * config/i386/i386.c (ix86_frame): Moved to ... + * config/i386/i386.h (ix86_frame): Here. + (machine_function): Add frame. + * config/i386/i386.c (ix86_compute_frame_layout): Repace the + frame argument with &cfun->machine->frame. + (ix86_can_use_return_insn_p): Don't pass &frame to + ix86_compute_frame_layout. Copy frame from cfun->machine->frame. + (ix86_can_eliminate): Likewise. + (ix86_expand_prologue): Likewise. + (ix86_expand_epilogue): Likewise. + (ix86_expand_split_stack_prologue): Likewise. +--- + gcc/config/i386/i386.c | 68 ++++++++++---------------------------------------- + gcc/config/i386/i386.h | 53 ++++++++++++++++++++++++++++++++++++++- + 2 files changed, 65 insertions(+), 56 deletions(-) + +diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c +index 8b5faac5129..a1ff32b648b 100644 +--- a/gcc/config/i386/i386.c ++++ b/gcc/config/i386/i386.c +@@ -2434,53 +2434,6 @@ struct GTY(()) stack_local_entry { + struct stack_local_entry *next; + }; + +-/* Structure describing stack frame layout. +- Stack grows downward: +- +- [arguments] +- <- ARG_POINTER +- saved pc +- +- saved static chain if ix86_static_chain_on_stack +- +- saved frame pointer if frame_pointer_needed +- <- HARD_FRAME_POINTER +- [saved regs] +- <- regs_save_offset +- [padding0] +- +- [saved SSE regs] +- <- sse_regs_save_offset +- [padding1] | +- | <- FRAME_POINTER +- [va_arg registers] | +- | +- [frame] | +- | +- [padding2] | = to_allocate +- <- STACK_POINTER +- */ +-struct ix86_frame +-{ +- int nsseregs; +- int nregs; +- int va_arg_size; +- int red_zone_size; +- int outgoing_arguments_size; +- +- /* The offsets relative to ARG_POINTER. */ +- HOST_WIDE_INT frame_pointer_offset; +- HOST_WIDE_INT hard_frame_pointer_offset; +- HOST_WIDE_INT stack_pointer_offset; +- HOST_WIDE_INT hfp_save_offset; +- HOST_WIDE_INT reg_save_offset; +- HOST_WIDE_INT sse_reg_save_offset; +- +- /* When save_regs_using_mov is set, emit prologue using +- move instead of push instructions. */ +- bool save_regs_using_mov; +-}; +- + /* Which cpu are we scheduling for. */ + enum attr_cpu ix86_schedule; + +@@ -2572,7 +2525,7 @@ static unsigned int ix86_function_arg_boundary (machine_mode, + const_tree); + static rtx ix86_static_chain (const_tree, bool); + static int ix86_function_regparm (const_tree, const_tree); +-static void ix86_compute_frame_layout (struct ix86_frame *); ++static void ix86_compute_frame_layout (void); + static bool ix86_expand_vector_init_one_nonzero (bool, machine_mode, + rtx, rtx, int); + static void ix86_add_new_builtins (HOST_WIDE_INT); +@@ -10944,7 +10897,8 @@ ix86_can_use_return_insn_p (void) + if (crtl->args.pops_args && crtl->args.size >= 32768) + return 0; + +- ix86_compute_frame_layout (&frame); ++ ix86_compute_frame_layout (); ++ frame = cfun->machine->frame; + return (frame.stack_pointer_offset == UNITS_PER_WORD + && (frame.nregs + frame.nsseregs) == 0); + } +@@ -11355,8 +11309,8 @@ ix86_can_eliminate (const int from, const int to) + HOST_WIDE_INT + ix86_initial_elimination_offset (int from, int to) + { +- struct ix86_frame frame; +- ix86_compute_frame_layout (&frame); ++ ix86_compute_frame_layout (); ++ struct ix86_frame frame = cfun->machine->frame; + + if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM) + return frame.hard_frame_pointer_offset; +@@ -11395,8 +11349,9 @@ ix86_builtin_setjmp_frame_value (void) + /* Fill structure ix86_frame about frame of currently computed function. */ + + static void +-ix86_compute_frame_layout (struct ix86_frame *frame) ++ix86_compute_frame_layout (void) + { ++ struct ix86_frame *frame = &cfun->machine->frame; + unsigned HOST_WIDE_INT stack_alignment_needed; + HOST_WIDE_INT offset; + unsigned HOST_WIDE_INT preferred_alignment; +@@ -12702,7 +12657,8 @@ ix86_expand_prologue (void) + m->fs.sp_offset = INCOMING_FRAME_SP_OFFSET; + m->fs.sp_valid = true; + +- ix86_compute_frame_layout (&frame); ++ ix86_compute_frame_layout (); ++ frame = m->frame; + + if (!TARGET_64BIT && ix86_function_ms_hook_prologue (current_function_decl)) + { +@@ -13379,7 +13335,8 @@ ix86_expand_epilogue (int style) + bool using_drap; + + ix86_finalize_stack_realign_flags (); +- ix86_compute_frame_layout (&frame); ++ ix86_compute_frame_layout (); ++ frame = m->frame; + + m->fs.sp_valid = (!frame_pointer_needed + || (crtl->sp_is_unchanging +@@ -13876,7 +13833,8 @@ ix86_expand_split_stack_prologue (void) + gcc_assert (flag_split_stack && reload_completed); + + ix86_finalize_stack_realign_flags (); +- ix86_compute_frame_layout (&frame); ++ ix86_compute_frame_layout (); ++ frame = cfun->machine->frame; + allocate = frame.stack_pointer_offset - INCOMING_FRAME_SP_OFFSET; + + /* This is the label we will branch to if we have enough stack +diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h +index 8113f83c7fd..54144166172 100644 +--- a/gcc/config/i386/i386.h ++++ b/gcc/config/i386/i386.h +@@ -2427,9 +2427,56 @@ enum avx_u128_state + + #define FASTCALL_PREFIX '@' + ++#ifndef USED_FOR_TARGET ++/* Structure describing stack frame layout. ++ Stack grows downward: ++ ++ [arguments] ++ <- ARG_POINTER ++ saved pc ++ ++ saved static chain if ix86_static_chain_on_stack ++ ++ saved frame pointer if frame_pointer_needed ++ <- HARD_FRAME_POINTER ++ [saved regs] ++ <- regs_save_offset ++ [padding0] ++ ++ [saved SSE regs] ++ <- sse_regs_save_offset ++ [padding1] | ++ | <- FRAME_POINTER ++ [va_arg registers] | ++ | ++ [frame] | ++ | ++ [padding2] | = to_allocate ++ <- STACK_POINTER ++ */ ++struct GTY(()) ix86_frame ++{ ++ int nsseregs; ++ int nregs; ++ int va_arg_size; ++ int red_zone_size; ++ int outgoing_arguments_size; ++ ++ /* The offsets relative to ARG_POINTER. */ ++ HOST_WIDE_INT frame_pointer_offset; ++ HOST_WIDE_INT hard_frame_pointer_offset; ++ HOST_WIDE_INT stack_pointer_offset; ++ HOST_WIDE_INT hfp_save_offset; ++ HOST_WIDE_INT reg_save_offset; ++ HOST_WIDE_INT sse_reg_save_offset; ++ ++ /* When save_regs_using_mov is set, emit prologue using ++ move instead of push instructions. */ ++ bool save_regs_using_mov; ++}; ++ + /* Machine specific frame tracking during prologue/epilogue generation. */ + +-#ifndef USED_FOR_TARGET + struct GTY(()) machine_frame_state + { + /* This pair tracks the currently active CFA as reg+offset. When reg +@@ -2475,6 +2522,9 @@ struct GTY(()) machine_function { + int varargs_fpr_size; + int optimize_mode_switching[MAX_386_ENTITIES]; + ++ /* Cached initial frame layout for the current function. */ ++ struct ix86_frame frame; ++ + /* Number of saved registers USE_FAST_PROLOGUE_EPILOGUE + has been computed for. */ + int use_fast_prologue_epilogue_nregs; +@@ -2554,6 +2604,7 @@ struct GTY(()) machine_function { + #define ix86_current_function_calls_tls_descriptor \ + (ix86_tls_descriptor_calls_expanded_in_cfun && df_regs_ever_live_p (SP_REG)) + #define ix86_static_chain_on_stack (cfun->machine->static_chain_on_stack) ++#define ix86_red_zone_size (cfun->machine->frame.red_zone_size) + + /* Control behavior of x86_file_start. */ + #define X86_FILE_START_VERSION_DIRECTIVE false +-- +2.16.3 + diff --git a/main/gcc6/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch b/main/gcc6/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch new file mode 100644 index 000000000..79219e858 --- /dev/null +++ b/main/gcc6/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch @@ -0,0 +1,69 @@ +From b1fc91cda7c15264116f3dde6944ead149123653 Mon Sep 17 00:00:00 2001 +From: hjl +Date: Mon, 15 Jan 2018 11:28:44 +0000 +Subject: [PATCH 02/13] i386: Use reference of struct ix86_frame to avoid copy + +When there is no need to make a copy of ix86_frame, we can use reference +of struct ix86_frame to avoid copy. + + Backport from mainline + 2017-11-06 H.J. Lu + + * config/i386/i386.c (ix86_can_use_return_insn_p): Use reference + of struct ix86_frame. + (ix86_initial_elimination_offset): Likewise. + (ix86_expand_split_stack_prologue): Likewise. +--- + gcc/config/i386/i386.c | 8 +++----- + 1 file changed, 3 insertions(+), 5 deletions(-) + +diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c +index a1ff32b648b..13ebf107e90 100644 +--- a/gcc/config/i386/i386.c ++++ b/gcc/config/i386/i386.c +@@ -10887,7 +10887,6 @@ symbolic_reference_mentioned_p (rtx op) + bool + ix86_can_use_return_insn_p (void) + { +- struct ix86_frame frame; + + if (! reload_completed || frame_pointer_needed) + return 0; +@@ -10898,7 +10897,7 @@ ix86_can_use_return_insn_p (void) + return 0; + + ix86_compute_frame_layout (); +- frame = cfun->machine->frame; ++ struct ix86_frame &frame = cfun->machine->frame; + return (frame.stack_pointer_offset == UNITS_PER_WORD + && (frame.nregs + frame.nsseregs) == 0); + } +@@ -11310,7 +11309,7 @@ HOST_WIDE_INT + ix86_initial_elimination_offset (int from, int to) + { + ix86_compute_frame_layout (); +- struct ix86_frame frame = cfun->machine->frame; ++ struct ix86_frame &frame = cfun->machine->frame; + + if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM) + return frame.hard_frame_pointer_offset; +@@ -13821,7 +13820,6 @@ static GTY(()) rtx split_stack_fn_large; + void + ix86_expand_split_stack_prologue (void) + { +- struct ix86_frame frame; + HOST_WIDE_INT allocate; + unsigned HOST_WIDE_INT args_size; + rtx_code_label *label; +@@ -13834,7 +13832,7 @@ ix86_expand_split_stack_prologue (void) + + ix86_finalize_stack_realign_flags (); + ix86_compute_frame_layout (); +- frame = cfun->machine->frame; ++ struct ix86_frame &frame = cfun->machine->frame; + allocate = frame.stack_pointer_offset - INCOMING_FRAME_SP_OFFSET; + + /* This is the label we will branch to if we have enough stack +-- +2.16.3 + diff --git a/main/gcc6/0003-i386-Use-const-reference-of-struct-ix86_frame-to-avo.patch b/main/gcc6/0003-i386-Use-const-reference-of-struct-ix86_frame-to-avo.patch new file mode 100644 index 000000000..2f293946f --- /dev/null +++ b/main/gcc6/0003-i386-Use-const-reference-of-struct-ix86_frame-to-avo.patch @@ -0,0 +1,126 @@ +From 3e39c0a8053b3e960cf4c3aea3c814e7dc97cfd6 Mon Sep 17 00:00:00 2001 +From: hjl +Date: Sat, 27 Jan 2018 13:10:24 +0000 +Subject: [PATCH 03/13] i386: Use const reference of struct ix86_frame to avoid + copy + +We can use const reference of struct ix86_frame to avoid making a local +copy of ix86_frame. ix86_expand_epilogue makes a local copy of struct +ix86_frame and uses the reg_save_offset field as a local variable. This +patch uses a separate local variable for reg_save_offset. + +Tested on x86-64 with ada. + + Backport from mainline + PR target/83905 + * config/i386/i386.c (ix86_expand_prologue): Use cost reference + of struct ix86_frame. + (ix86_expand_epilogue): Likewise. Add a local variable for + the reg_save_offset field in struct ix86_frame. + +git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-7-branch@257123 138bc75d-0d04-0410-961f-82ee72b054a4 +--- + gcc/config/i386/i386.c | 24 ++++++++++++------------ + 1 file changed, 12 insertions(+), 12 deletions(-) + +diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c +index 13ebf107e90..6c98f7581e2 100644 +--- a/gcc/config/i386/i386.c ++++ b/gcc/config/i386/i386.c +@@ -12633,7 +12633,6 @@ ix86_expand_prologue (void) + { + struct machine_function *m = cfun->machine; + rtx insn, t; +- struct ix86_frame frame; + HOST_WIDE_INT allocate; + bool int_registers_saved; + bool sse_registers_saved; +@@ -12657,7 +12656,7 @@ ix86_expand_prologue (void) + m->fs.sp_valid = true; + + ix86_compute_frame_layout (); +- frame = m->frame; ++ const struct ix86_frame &frame = cfun->machine->frame; + + if (!TARGET_64BIT && ix86_function_ms_hook_prologue (current_function_decl)) + { +@@ -13329,13 +13328,12 @@ ix86_expand_epilogue (int style) + { + struct machine_function *m = cfun->machine; + struct machine_frame_state frame_state_save = m->fs; +- struct ix86_frame frame; + bool restore_regs_via_mov; + bool using_drap; + + ix86_finalize_stack_realign_flags (); + ix86_compute_frame_layout (); +- frame = m->frame; ++ const struct ix86_frame &frame = cfun->machine->frame; + + m->fs.sp_valid = (!frame_pointer_needed + || (crtl->sp_is_unchanging +@@ -13377,11 +13375,13 @@ ix86_expand_epilogue (int style) + + UNITS_PER_WORD); + } + ++ HOST_WIDE_INT reg_save_offset = frame.reg_save_offset; ++ + /* Special care must be taken for the normal return case of a function + using eh_return: the eax and edx registers are marked as saved, but + not restored along this path. Adjust the save location to match. */ + if (crtl->calls_eh_return && style != 2) +- frame.reg_save_offset -= 2 * UNITS_PER_WORD; ++ reg_save_offset -= 2 * UNITS_PER_WORD; + + /* EH_RETURN requires the use of moves to function properly. */ + if (crtl->calls_eh_return) +@@ -13397,11 +13397,11 @@ ix86_expand_epilogue (int style) + else if (TARGET_EPILOGUE_USING_MOVE + && cfun->machine->use_fast_prologue_epilogue + && (frame.nregs > 1 +- || m->fs.sp_offset != frame.reg_save_offset)) ++ || m->fs.sp_offset != reg_save_offset)) + restore_regs_via_mov = true; + else if (frame_pointer_needed + && !frame.nregs +- && m->fs.sp_offset != frame.reg_save_offset) ++ && m->fs.sp_offset != reg_save_offset) + restore_regs_via_mov = true; + else if (frame_pointer_needed + && TARGET_USE_LEAVE +@@ -13439,7 +13439,7 @@ ix86_expand_epilogue (int style) + rtx t; + + if (frame.nregs) +- ix86_emit_restore_regs_using_mov (frame.reg_save_offset, style == 2); ++ ix86_emit_restore_regs_using_mov (reg_save_offset, style == 2); + + /* eh_return epilogues need %ecx added to the stack pointer. */ + if (style == 2) +@@ -13529,19 +13529,19 @@ ix86_expand_epilogue (int style) + epilogues. */ + if (!m->fs.sp_valid + || (TARGET_SEH +- && (m->fs.sp_offset - frame.reg_save_offset ++ && (m->fs.sp_offset - reg_save_offset + >= SEH_MAX_FRAME_SIZE))) + { + pro_epilogue_adjust_stack (stack_pointer_rtx, hard_frame_pointer_rtx, + GEN_INT (m->fs.fp_offset +- - frame.reg_save_offset), ++ - reg_save_offset), + style, false); + } +- else if (m->fs.sp_offset != frame.reg_save_offset) ++ else if (m->fs.sp_offset != reg_save_offset) + { + pro_epilogue_adjust_stack (stack_pointer_rtx, stack_pointer_rtx, + GEN_INT (m->fs.sp_offset +- - frame.reg_save_offset), ++ - reg_save_offset), + style, + m->fs.cfa_reg == stack_pointer_rtx); + } +-- +2.16.3 + diff --git a/main/gcc6/0004-x86-Add-mindirect-branch.patch b/main/gcc6/0004-x86-Add-mindirect-branch.patch new file mode 100644 index 000000000..db5fe2f48 --- /dev/null +++ b/main/gcc6/0004-x86-Add-mindirect-branch.patch @@ -0,0 +1,2149 @@ +From 64da0f4b794672ae14350b09c276422f79f78fc0 Mon Sep 17 00:00:00 2001 +From: "H.J. Lu" +Date: Sat, 6 Jan 2018 22:29:55 -0800 +Subject: [PATCH 04/13] x86: Add -mindirect-branch= + +Add -mindirect-branch= option to convert indirect call and jump to call +and return thunks. The default is 'keep', which keeps indirect call and +jump unmodified. 'thunk' converts indirect call and jump to call and +return thunk. 'thunk-inline' converts indirect call and jump to inlined +call and return thunk. 'thunk-extern' converts indirect call and jump to +external call and return thunk provided in a separate object file. You +can control this behavior for a specific function by using the function +attribute indirect_branch. + +2 kinds of thunks are geneated. Memory thunk where the function address +is at the top of the stack: + +__x86_indirect_thunk: + call L2 +L1: + pause + lfence + jmp L1 +L2: + lea 8(%rsp), %rsp|lea 4(%esp), %esp + ret + +Indirect jmp via memory, "jmp mem", is converted to + + push memory + jmp __x86_indirect_thunk + +Indirect call via memory, "call mem", is converted to + + jmp L2 +L1: + push [mem] + jmp __x86_indirect_thunk +L2: + call L1 + +Register thunk where the function address is in a register, reg: + +__x86_indirect_thunk_reg: + call L2 +L1: + pause + lfence + jmp L1 +L2: + movq %reg, (%rsp)|movl %reg, (%esp) + ret + +where reg is one of (r|e)ax, (r|e)dx, (r|e)cx, (r|e)bx, (r|e)si, (r|e)di, +(r|e)bp, r8, r9, r10, r11, r12, r13, r14 and r15. + +Indirect jmp via register, "jmp reg", is converted to + + jmp __x86_indirect_thunk_reg + +Indirect call via register, "call reg", is converted to + + call __x86_indirect_thunk_reg + +gcc/ + + Backport from mainline + 2018-01-14 H.J. Lu + + * config/i386/i386-opts.h (indirect_branch): New. + * config/i386/i386-protos.h (ix86_output_indirect_jmp): Likewise. + * config/i386/i386.c (ix86_using_red_zone): Disallow red-zone + with local indirect jump when converting indirect call and jump. + (ix86_set_indirect_branch_type): New. + (ix86_set_current_function): Call ix86_set_indirect_branch_type. + (indirectlabelno): New. + (indirect_thunk_needed): Likewise. + (indirect_thunk_bnd_needed): Likewise. + (indirect_thunks_used): Likewise. + (indirect_thunks_bnd_used): Likewise. + (INDIRECT_LABEL): Likewise. + (indirect_thunk_name): Likewise. + (output_indirect_thunk): Likewise. + (output_indirect_thunk_function): Likewise. + (ix86_output_indirect_branch_via_reg): Likewise. + (ix86_output_indirect_branch_via_push): Likewise. + (ix86_output_indirect_branch): Likewise. + (ix86_output_indirect_jmp): Likewise. + (ix86_code_end): Call output_indirect_thunk_function if needed. + (ix86_output_call_insn): Call ix86_output_indirect_branch if + needed. + (ix86_handle_fndecl_attribute): Handle indirect_branch. + (ix86_attribute_table): Add indirect_branch. + * config/i386/i386.h (machine_function): Add indirect_branch_type + and has_local_indirect_jump. + * config/i386/i386.md (indirect_jump): Set has_local_indirect_jump + to true. + (tablejump): Likewise. + (*indirect_jump): Use ix86_output_indirect_jmp. + (*tablejump_1): Likewise. + (simple_return_indirect_internal): Likewise. + * config/i386/i386.opt (mindirect-branch=): New option. + (indirect_branch): New. + (keep): Likewise. + (thunk): Likewise. + (thunk-inline): Likewise. + (thunk-extern): Likewise. + * doc/extend.texi: Document indirect_branch function attribute. + * doc/invoke.texi: Document -mindirect-branch= option. + +gcc/testsuite/ + + Backport from mainline + 2018-01-14 H.J. Lu + + * gcc.target/i386/indirect-thunk-1.c: New test. + * gcc.target/i386/indirect-thunk-2.c: Likewise. + * gcc.target/i386/indirect-thunk-3.c: Likewise. + * gcc.target/i386/indirect-thunk-4.c: Likewise. + * gcc.target/i386/indirect-thunk-5.c: Likewise. + * gcc.target/i386/indirect-thunk-6.c: Likewise. + * gcc.target/i386/indirect-thunk-7.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-1.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-2.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-3.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-4.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-5.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-6.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-7.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-8.c: Likewise. + * gcc.target/i386/indirect-thunk-bnd-1.c: Likewise. + * gcc.target/i386/indirect-thunk-bnd-2.c: Likewise. + * gcc.target/i386/indirect-thunk-bnd-3.c: Likewise. + * gcc.target/i386/indirect-thunk-bnd-4.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-1.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-2.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-3.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-4.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-5.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-6.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-7.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-1.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-2.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-3.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-4.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-5.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-6.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-7.c: Likewise. +--- + gcc/config/i386/i386-opts.h | 13 + + gcc/config/i386/i386-protos.h | 1 + + gcc/config/i386/i386.c | 639 ++++++++++++++++++++- + gcc/config/i386/i386.h | 7 + + gcc/config/i386/i386.md | 26 +- + gcc/config/i386/i386.opt | 20 + + gcc/doc/extend.texi | 10 + + gcc/doc/invoke.texi | 13 +- + gcc/testsuite/gcc.target/i386/indirect-thunk-1.c | 20 + + gcc/testsuite/gcc.target/i386/indirect-thunk-2.c | 20 + + gcc/testsuite/gcc.target/i386/indirect-thunk-3.c | 21 + + gcc/testsuite/gcc.target/i386/indirect-thunk-4.c | 21 + + gcc/testsuite/gcc.target/i386/indirect-thunk-5.c | 17 + + gcc/testsuite/gcc.target/i386/indirect-thunk-6.c | 18 + + gcc/testsuite/gcc.target/i386/indirect-thunk-7.c | 44 ++ + .../gcc.target/i386/indirect-thunk-attr-1.c | 23 + + .../gcc.target/i386/indirect-thunk-attr-2.c | 21 + + .../gcc.target/i386/indirect-thunk-attr-3.c | 23 + + .../gcc.target/i386/indirect-thunk-attr-4.c | 22 + + .../gcc.target/i386/indirect-thunk-attr-5.c | 22 + + .../gcc.target/i386/indirect-thunk-attr-6.c | 21 + + .../gcc.target/i386/indirect-thunk-attr-7.c | 44 ++ + .../gcc.target/i386/indirect-thunk-attr-8.c | 42 ++ + .../gcc.target/i386/indirect-thunk-bnd-1.c | 20 + + .../gcc.target/i386/indirect-thunk-bnd-2.c | 21 + + .../gcc.target/i386/indirect-thunk-bnd-3.c | 19 + + .../gcc.target/i386/indirect-thunk-bnd-4.c | 20 + + .../gcc.target/i386/indirect-thunk-extern-1.c | 19 + + .../gcc.target/i386/indirect-thunk-extern-2.c | 19 + + .../gcc.target/i386/indirect-thunk-extern-3.c | 20 + + .../gcc.target/i386/indirect-thunk-extern-4.c | 20 + + .../gcc.target/i386/indirect-thunk-extern-5.c | 16 + + .../gcc.target/i386/indirect-thunk-extern-6.c | 17 + + .../gcc.target/i386/indirect-thunk-extern-7.c | 43 ++ + .../gcc.target/i386/indirect-thunk-inline-1.c | 20 + + .../gcc.target/i386/indirect-thunk-inline-2.c | 20 + + .../gcc.target/i386/indirect-thunk-inline-3.c | 21 + + .../gcc.target/i386/indirect-thunk-inline-4.c | 21 + + .../gcc.target/i386/indirect-thunk-inline-5.c | 17 + + .../gcc.target/i386/indirect-thunk-inline-6.c | 18 + + .../gcc.target/i386/indirect-thunk-inline-7.c | 44 ++ + 41 files changed, 1486 insertions(+), 17 deletions(-) + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-1.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-2.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-3.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-4.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-5.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-6.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-7.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c + +diff --git a/gcc/config/i386/i386-opts.h b/gcc/config/i386/i386-opts.h +index b7f92e3bea1..cc21152875f 100644 +--- a/gcc/config/i386/i386-opts.h ++++ b/gcc/config/i386/i386-opts.h +@@ -99,4 +99,17 @@ enum stack_protector_guard { + SSP_GLOBAL /* global canary */ + }; + ++/* This is used to mitigate variant #2 of the speculative execution ++ vulnerabilities on x86 processors identified by CVE-2017-5715, aka ++ Spectre. They convert indirect branches and function returns to ++ call and return thunks to avoid speculative execution via indirect ++ call, jmp and ret. */ ++enum indirect_branch { ++ indirect_branch_unset = 0, ++ indirect_branch_keep, ++ indirect_branch_thunk, ++ indirect_branch_thunk_inline, ++ indirect_branch_thunk_extern ++}; ++ + #endif +diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h +index ff47bc15600..eca4cbf0776 100644 +--- a/gcc/config/i386/i386-protos.h ++++ b/gcc/config/i386/i386-protos.h +@@ -311,6 +311,7 @@ extern enum attr_cpu ix86_schedule; + #endif + + extern const char * ix86_output_call_insn (rtx_insn *insn, rtx call_op); ++extern const char * ix86_output_indirect_jmp (rtx call_op, bool ret_p); + extern bool ix86_operands_ok_for_move_multiple (rtx *operands, bool load, + enum machine_mode mode); + +diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c +index 6c98f7581e2..0b9fc4d3026 100644 +--- a/gcc/config/i386/i386.c ++++ b/gcc/config/i386/i386.c +@@ -3662,12 +3662,23 @@ make_pass_stv (gcc::context *ctxt) + return new pass_stv (ctxt); + } + +-/* Return true if a red-zone is in use. */ ++/* Return true if a red-zone is in use. We can't use red-zone when ++ there are local indirect jumps, like "indirect_jump" or "tablejump", ++ which jumps to another place in the function, since "call" in the ++ indirect thunk pushes the return address onto stack, destroying ++ red-zone. ++ ++ TODO: If we can reserve the first 2 WORDs, for PUSH and, another ++ for CALL, in red-zone, we can allow local indirect jumps with ++ indirect thunk. */ + + bool + ix86_using_red_zone (void) + { +- return TARGET_RED_ZONE && !TARGET_64BIT_MS_ABI; ++ return (TARGET_RED_ZONE ++ && !TARGET_64BIT_MS_ABI ++ && (!cfun->machine->has_local_indirect_jump ++ || cfun->machine->indirect_branch_type == indirect_branch_keep)); + } + + /* Return a string that documents the current -m options. The caller is +@@ -6350,6 +6361,37 @@ ix86_reset_previous_fndecl (void) + ix86_previous_fndecl = NULL_TREE; + } + ++/* Set the indirect_branch_type field from the function FNDECL. */ ++ ++static void ++ix86_set_indirect_branch_type (tree fndecl) ++{ ++ if (cfun->machine->indirect_branch_type == indirect_branch_unset) ++ { ++ tree attr = lookup_attribute ("indirect_branch", ++ DECL_ATTRIBUTES (fndecl)); ++ if (attr != NULL) ++ { ++ tree args = TREE_VALUE (attr); ++ if (args == NULL) ++ gcc_unreachable (); ++ tree cst = TREE_VALUE (args); ++ if (strcmp (TREE_STRING_POINTER (cst), "keep") == 0) ++ cfun->machine->indirect_branch_type = indirect_branch_keep; ++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk") == 0) ++ cfun->machine->indirect_branch_type = indirect_branch_thunk; ++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk-inline") == 0) ++ cfun->machine->indirect_branch_type = indirect_branch_thunk_inline; ++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk-extern") == 0) ++ cfun->machine->indirect_branch_type = indirect_branch_thunk_extern; ++ else ++ gcc_unreachable (); ++ } ++ else ++ cfun->machine->indirect_branch_type = ix86_indirect_branch; ++ } ++} ++ + /* Establish appropriate back-end context for processing the function + FNDECL. The argument might be NULL to indicate processing at top + level, outside of any function scope. */ +@@ -6360,7 +6402,13 @@ ix86_set_current_function (tree fndecl) + several times in the course of compiling a function, and we don't want to + slow things down too much or call target_reinit when it isn't safe. */ + if (fndecl == ix86_previous_fndecl) +- return; ++ { ++ /* There may be 2 function bodies for the same function FNDECL, ++ one is extern inline and one isn't. */ ++ if (fndecl != NULL_TREE) ++ ix86_set_indirect_branch_type (fndecl); ++ return; ++ } + + tree old_tree; + if (ix86_previous_fndecl == NULL_TREE) +@@ -6377,6 +6425,8 @@ ix86_set_current_function (tree fndecl) + return; + } + ++ ix86_set_indirect_branch_type (fndecl); ++ + tree new_tree = DECL_FUNCTION_SPECIFIC_TARGET (fndecl); + if (new_tree == NULL_TREE) + new_tree = target_option_default_node; +@@ -10962,6 +11012,220 @@ ix86_setup_frame_addresses (void) + # endif + #endif + ++/* Label count for call and return thunks. It is used to make unique ++ labels in call and return thunks. */ ++static int indirectlabelno; ++ ++/* True if call and return thunk functions are needed. */ ++static bool indirect_thunk_needed = false; ++/* True if call and return thunk functions with the BND prefix are ++ needed. */ ++static bool indirect_thunk_bnd_needed = false; ++ ++/* Bit masks of integer registers, which contain branch target, used ++ by call and return thunks functions. */ ++static int indirect_thunks_used; ++/* Bit masks of integer registers, which contain branch target, used ++ by call and return thunks functions with the BND prefix. */ ++static int indirect_thunks_bnd_used; ++ ++#ifndef INDIRECT_LABEL ++# define INDIRECT_LABEL "LIND" ++#endif ++ ++/* Fills in the label name that should be used for the indirect thunk. */ ++ ++static void ++indirect_thunk_name (char name[32], int regno, bool need_bnd_p) ++{ ++ if (USE_HIDDEN_LINKONCE) ++ { ++ const char *bnd = need_bnd_p ? "_bnd" : ""; ++ if (regno >= 0) ++ { ++ const char *reg_prefix; ++ if (LEGACY_INT_REGNO_P (regno)) ++ reg_prefix = TARGET_64BIT ? "r" : "e"; ++ else ++ reg_prefix = ""; ++ sprintf (name, "__x86_indirect_thunk%s_%s%s", ++ bnd, reg_prefix, reg_names[regno]); ++ } ++ else ++ sprintf (name, "__x86_indirect_thunk%s", bnd); ++ } ++ else ++ { ++ if (regno >= 0) ++ { ++ if (need_bnd_p) ++ ASM_GENERATE_INTERNAL_LABEL (name, "LITBR", regno); ++ else ++ ASM_GENERATE_INTERNAL_LABEL (name, "LITR", regno); ++ } ++ else ++ { ++ if (need_bnd_p) ++ ASM_GENERATE_INTERNAL_LABEL (name, "LITB", 0); ++ else ++ ASM_GENERATE_INTERNAL_LABEL (name, "LIT", 0); ++ } ++ } ++} ++ ++/* Output a call and return thunk for indirect branch. If BND_P is ++ true, the BND prefix is needed. If REGNO != -1, the function ++ address is in REGNO and the call and return thunk looks like: ++ ++ call L2 ++ L1: ++ pause ++ jmp L1 ++ L2: ++ mov %REG, (%sp) ++ ret ++ ++ Otherwise, the function address is on the top of stack and the ++ call and return thunk looks like: ++ ++ call L2 ++ L1: ++ pause ++ jmp L1 ++ L2: ++ lea WORD_SIZE(%sp), %sp ++ ret ++ */ ++ ++static void ++output_indirect_thunk (bool need_bnd_p, int regno) ++{ ++ char indirectlabel1[32]; ++ char indirectlabel2[32]; ++ ++ ASM_GENERATE_INTERNAL_LABEL (indirectlabel1, INDIRECT_LABEL, ++ indirectlabelno++); ++ ASM_GENERATE_INTERNAL_LABEL (indirectlabel2, INDIRECT_LABEL, ++ indirectlabelno++); ++ ++ /* Call */ ++ if (need_bnd_p) ++ fputs ("\tbnd call\t", asm_out_file); ++ else ++ fputs ("\tcall\t", asm_out_file); ++ assemble_name_raw (asm_out_file, indirectlabel2); ++ fputc ('\n', asm_out_file); ++ ++ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel1); ++ ++ /* Pause + lfence. */ ++ fprintf (asm_out_file, "\tpause\n\tlfence\n"); ++ ++ /* Jump. */ ++ fputs ("\tjmp\t", asm_out_file); ++ assemble_name_raw (asm_out_file, indirectlabel1); ++ fputc ('\n', asm_out_file); ++ ++ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2); ++ ++ if (regno >= 0) ++ { ++ /* MOV. */ ++ rtx xops[2]; ++ xops[0] = gen_rtx_MEM (word_mode, stack_pointer_rtx); ++ xops[1] = gen_rtx_REG (word_mode, regno); ++ output_asm_insn ("mov\t{%1, %0|%0, %1}", xops); ++ } ++ else ++ { ++ /* LEA. */ ++ rtx xops[2]; ++ xops[0] = stack_pointer_rtx; ++ xops[1] = plus_constant (Pmode, stack_pointer_rtx, UNITS_PER_WORD); ++ output_asm_insn ("lea\t{%E1, %0|%0, %E1}", xops); ++ } ++ ++ if (need_bnd_p) ++ fputs ("\tbnd ret\n", asm_out_file); ++ else ++ fputs ("\tret\n", asm_out_file); ++} ++ ++/* Output a funtion with a call and return thunk for indirect branch. ++ If BND_P is true, the BND prefix is needed. If REGNO != -1, the ++ function address is in REGNO. Otherwise, the function address is ++ on the top of stack. */ ++ ++static void ++output_indirect_thunk_function (bool need_bnd_p, int regno) ++{ ++ char name[32]; ++ tree decl; ++ ++ /* Create __x86_indirect_thunk/__x86_indirect_thunk_bnd. */ ++ indirect_thunk_name (name, regno, need_bnd_p); ++ decl = build_decl (BUILTINS_LOCATION, FUNCTION_DECL, ++ get_identifier (name), ++ build_function_type_list (void_type_node, NULL_TREE)); ++ DECL_RESULT (decl) = build_decl (BUILTINS_LOCATION, RESULT_DECL, ++ NULL_TREE, void_type_node); ++ TREE_PUBLIC (decl) = 1; ++ TREE_STATIC (decl) = 1; ++ DECL_IGNORED_P (decl) = 1; ++ ++#if TARGET_MACHO ++ if (TARGET_MACHO) ++ { ++ switch_to_section (darwin_sections[picbase_thunk_section]); ++ fputs ("\t.weak_definition\t", asm_out_file); ++ assemble_name (asm_out_file, name); ++ fputs ("\n\t.private_extern\t", asm_out_file); ++ assemble_name (asm_out_file, name); ++ putc ('\n', asm_out_file); ++ ASM_OUTPUT_LABEL (asm_out_file, name); ++ DECL_WEAK (decl) = 1; ++ } ++ else ++#endif ++ if (USE_HIDDEN_LINKONCE) ++ { ++ cgraph_node::create (decl)->set_comdat_group (DECL_ASSEMBLER_NAME (decl)); ++ ++ targetm.asm_out.unique_section (decl, 0); ++ switch_to_section (get_named_section (decl, NULL, 0)); ++ ++ targetm.asm_out.globalize_label (asm_out_file, name); ++ fputs ("\t.hidden\t", asm_out_file); ++ assemble_name (asm_out_file, name); ++ putc ('\n', asm_out_file); ++ ASM_DECLARE_FUNCTION_NAME (asm_out_file, name, decl); ++ } ++ else ++ { ++ switch_to_section (text_section); ++ ASM_OUTPUT_LABEL (asm_out_file, name); ++ } ++ ++ DECL_INITIAL (decl) = make_node (BLOCK); ++ current_function_decl = decl; ++ allocate_struct_function (decl, false); ++ init_function_start (decl); ++ /* We're about to hide the function body from callees of final_* by ++ emitting it directly; tell them we're a thunk, if they care. */ ++ cfun->is_thunk = true; ++ first_function_block_is_cold = false; ++ /* Make sure unwind info is emitted for the thunk if needed. */ ++ final_start_function (emit_barrier (), asm_out_file, 1); ++ ++ output_indirect_thunk (need_bnd_p, regno); ++ ++ final_end_function (); ++ init_insn_lengths (); ++ free_after_compilation (cfun); ++ set_cfun (NULL); ++ current_function_decl = NULL; ++} ++ + static int pic_labels_used; + + /* Fills in the label name that should be used for a pc thunk for +@@ -10988,11 +11252,32 @@ ix86_code_end (void) + rtx xops[2]; + int regno; + ++ if (indirect_thunk_needed) ++ output_indirect_thunk_function (false, -1); ++ if (indirect_thunk_bnd_needed) ++ output_indirect_thunk_function (true, -1); ++ ++ for (regno = FIRST_REX_INT_REG; regno <= LAST_REX_INT_REG; regno++) ++ { ++ int i = regno - FIRST_REX_INT_REG + LAST_INT_REG + 1; ++ if ((indirect_thunks_used & (1 << i))) ++ output_indirect_thunk_function (false, regno); ++ ++ if ((indirect_thunks_bnd_used & (1 << i))) ++ output_indirect_thunk_function (true, regno); ++ } ++ + for (regno = AX_REG; regno <= SP_REG; regno++) + { + char name[32]; + tree decl; + ++ if ((indirect_thunks_used & (1 << regno))) ++ output_indirect_thunk_function (false, regno); ++ ++ if ((indirect_thunks_bnd_used & (1 << regno))) ++ output_indirect_thunk_function (true, regno); ++ + if (!(pic_labels_used & (1 << regno))) + continue; + +@@ -27369,12 +27654,292 @@ ix86_nopic_noplt_attribute_p (rtx call_op) + return false; + } + ++/* Output indirect branch via a call and return thunk. CALL_OP is a ++ register which contains the branch target. XASM is the assembly ++ template for CALL_OP. Branch is a tail call if SIBCALL_P is true. ++ A normal call is converted to: ++ ++ call __x86_indirect_thunk_reg ++ ++ and a tail call is converted to: ++ ++ jmp __x86_indirect_thunk_reg ++ */ ++ ++static void ++ix86_output_indirect_branch_via_reg (rtx call_op, bool sibcall_p) ++{ ++ char thunk_name_buf[32]; ++ char *thunk_name; ++ bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn); ++ int regno = REGNO (call_op); ++ ++ if (cfun->machine->indirect_branch_type ++ != indirect_branch_thunk_inline) ++ { ++ if (cfun->machine->indirect_branch_type == indirect_branch_thunk) ++ { ++ int i = regno; ++ if (i >= FIRST_REX_INT_REG) ++ i -= (FIRST_REX_INT_REG - LAST_INT_REG - 1); ++ if (need_bnd_p) ++ indirect_thunks_bnd_used |= 1 << i; ++ else ++ indirect_thunks_used |= 1 << i; ++ } ++ indirect_thunk_name (thunk_name_buf, regno, need_bnd_p); ++ thunk_name = thunk_name_buf; ++ } ++ else ++ thunk_name = NULL; ++ ++ if (sibcall_p) ++ { ++ if (thunk_name != NULL) ++ { ++ if (need_bnd_p) ++ fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name); ++ else ++ fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name); ++ } ++ else ++ output_indirect_thunk (need_bnd_p, regno); ++ } ++ else ++ { ++ if (thunk_name != NULL) ++ { ++ if (need_bnd_p) ++ fprintf (asm_out_file, "\tbnd call\t%s\n", thunk_name); ++ else ++ fprintf (asm_out_file, "\tcall\t%s\n", thunk_name); ++ return; ++ } ++ ++ char indirectlabel1[32]; ++ char indirectlabel2[32]; ++ ++ ASM_GENERATE_INTERNAL_LABEL (indirectlabel1, ++ INDIRECT_LABEL, ++ indirectlabelno++); ++ ASM_GENERATE_INTERNAL_LABEL (indirectlabel2, ++ INDIRECT_LABEL, ++ indirectlabelno++); ++ ++ /* Jump. */ ++ if (need_bnd_p) ++ fputs ("\tbnd jmp\t", asm_out_file); ++ else ++ fputs ("\tjmp\t", asm_out_file); ++ assemble_name_raw (asm_out_file, indirectlabel2); ++ fputc ('\n', asm_out_file); ++ ++ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel1); ++ ++ if (thunk_name != NULL) ++ { ++ if (need_bnd_p) ++ fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name); ++ else ++ fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name); ++ } ++ else ++ output_indirect_thunk (need_bnd_p, regno); ++ ++ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2); ++ ++ /* Call. */ ++ if (need_bnd_p) ++ fputs ("\tbnd call\t", asm_out_file); ++ else ++ fputs ("\tcall\t", asm_out_file); ++ assemble_name_raw (asm_out_file, indirectlabel1); ++ fputc ('\n', asm_out_file); ++ } ++} ++ ++/* Output indirect branch via a call and return thunk. CALL_OP is ++ the branch target. XASM is the assembly template for CALL_OP. ++ Branch is a tail call if SIBCALL_P is true. A normal call is ++ converted to: ++ ++ jmp L2 ++ L1: ++ push CALL_OP ++ jmp __x86_indirect_thunk ++ L2: ++ call L1 ++ ++ and a tail call is converted to: ++ ++ push CALL_OP ++ jmp __x86_indirect_thunk ++ */ ++ ++static void ++ix86_output_indirect_branch_via_push (rtx call_op, const char *xasm, ++ bool sibcall_p) ++{ ++ char thunk_name_buf[32]; ++ char *thunk_name; ++ char push_buf[64]; ++ bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn); ++ int regno = -1; ++ ++ if (cfun->machine->indirect_branch_type ++ != indirect_branch_thunk_inline) ++ { ++ if (cfun->machine->indirect_branch_type == indirect_branch_thunk) ++ { ++ if (need_bnd_p) ++ indirect_thunk_bnd_needed = true; ++ else ++ indirect_thunk_needed = true; ++ } ++ indirect_thunk_name (thunk_name_buf, regno, need_bnd_p); ++ thunk_name = thunk_name_buf; ++ } ++ else ++ thunk_name = NULL; ++ ++ snprintf (push_buf, sizeof (push_buf), "push{%c}\t%s", ++ TARGET_64BIT ? 'q' : 'l', xasm); ++ ++ if (sibcall_p) ++ { ++ output_asm_insn (push_buf, &call_op); ++ if (thunk_name != NULL) ++ { ++ if (need_bnd_p) ++ fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name); ++ else ++ fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name); ++ } ++ else ++ output_indirect_thunk (need_bnd_p, regno); ++ } ++ else ++ { ++ char indirectlabel1[32]; ++ char indirectlabel2[32]; ++ ++ ASM_GENERATE_INTERNAL_LABEL (indirectlabel1, ++ INDIRECT_LABEL, ++ indirectlabelno++); ++ ASM_GENERATE_INTERNAL_LABEL (indirectlabel2, ++ INDIRECT_LABEL, ++ indirectlabelno++); ++ ++ /* Jump. */ ++ if (need_bnd_p) ++ fputs ("\tbnd jmp\t", asm_out_file); ++ else ++ fputs ("\tjmp\t", asm_out_file); ++ assemble_name_raw (asm_out_file, indirectlabel2); ++ fputc ('\n', asm_out_file); ++ ++ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel1); ++ ++ /* An external function may be called via GOT, instead of PLT. */ ++ if (MEM_P (call_op)) ++ { ++ struct ix86_address parts; ++ rtx addr = XEXP (call_op, 0); ++ if (ix86_decompose_address (addr, &parts) ++ && parts.base == stack_pointer_rtx) ++ { ++ /* Since call will adjust stack by -UNITS_PER_WORD, ++ we must convert "disp(stack, index, scale)" to ++ "disp+UNITS_PER_WORD(stack, index, scale)". */ ++ if (parts.index) ++ { ++ addr = gen_rtx_MULT (Pmode, parts.index, ++ GEN_INT (parts.scale)); ++ addr = gen_rtx_PLUS (Pmode, stack_pointer_rtx, ++ addr); ++ } ++ else ++ addr = stack_pointer_rtx; ++ ++ rtx disp; ++ if (parts.disp != NULL_RTX) ++ disp = plus_constant (Pmode, parts.disp, ++ UNITS_PER_WORD); ++ else ++ disp = GEN_INT (UNITS_PER_WORD); ++ ++ addr = gen_rtx_PLUS (Pmode, addr, disp); ++ call_op = gen_rtx_MEM (GET_MODE (call_op), addr); ++ } ++ } ++ ++ output_asm_insn (push_buf, &call_op); ++ ++ if (thunk_name != NULL) ++ { ++ if (need_bnd_p) ++ fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name); ++ else ++ fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name); ++ } ++ else ++ output_indirect_thunk (need_bnd_p, regno); ++ ++ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2); ++ ++ /* Call. */ ++ if (need_bnd_p) ++ fputs ("\tbnd call\t", asm_out_file); ++ else ++ fputs ("\tcall\t", asm_out_file); ++ assemble_name_raw (asm_out_file, indirectlabel1); ++ fputc ('\n', asm_out_file); ++ } ++} ++ ++/* Output indirect branch via a call and return thunk. CALL_OP is ++ the branch target. XASM is the assembly template for CALL_OP. ++ Branch is a tail call if SIBCALL_P is true. */ ++ ++static void ++ix86_output_indirect_branch (rtx call_op, const char *xasm, ++ bool sibcall_p) ++{ ++ if (REG_P (call_op)) ++ ix86_output_indirect_branch_via_reg (call_op, sibcall_p); ++ else ++ ix86_output_indirect_branch_via_push (call_op, xasm, sibcall_p); ++} ++/* Output indirect jump. CALL_OP is the jump target. Jump is a ++ function return if RET_P is true. */ ++ ++const char * ++ix86_output_indirect_jmp (rtx call_op, bool ret_p) ++{ ++ if (cfun->machine->indirect_branch_type != indirect_branch_keep) ++ { ++ /* We can't have red-zone if this isn't a function return since ++ "call" in the indirect thunk pushes the return address onto ++ stack, destroying red-zone. */ ++ if (!ret_p && ix86_red_zone_size != 0) ++ gcc_unreachable (); ++ ++ ix86_output_indirect_branch (call_op, "%0", true); ++ return ""; ++ } ++ else ++ return "%!jmp\t%A0"; ++} ++ + /* Output the assembly for a call instruction. */ + + const char * + ix86_output_call_insn (rtx_insn *insn, rtx call_op) + { + bool direct_p = constant_call_address_operand (call_op, VOIDmode); ++ bool output_indirect_p ++ = (!TARGET_SEH ++ && cfun->machine->indirect_branch_type != indirect_branch_keep); + bool seh_nop_p = false; + const char *xasm; + +@@ -27383,7 +27948,13 @@ ix86_output_call_insn (rtx_insn *insn, rtx call_op) + if (direct_p) + { + if (ix86_nopic_noplt_attribute_p (call_op)) +- xasm = "%!jmp\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}"; ++ { ++ direct_p = false; ++ if (output_indirect_p) ++ xasm = "{%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}"; ++ else ++ xasm = "%!jmp\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}"; ++ } + else + xasm = "%!jmp\t%P0"; + } +@@ -27392,9 +27963,17 @@ ix86_output_call_insn (rtx_insn *insn, rtx call_op) + else if (TARGET_SEH) + xasm = "%!rex.W jmp\t%A0"; + else +- xasm = "%!jmp\t%A0"; ++ { ++ if (output_indirect_p) ++ xasm = "%0"; ++ else ++ xasm = "%!jmp\t%A0"; ++ } + +- output_asm_insn (xasm, &call_op); ++ if (output_indirect_p && !direct_p) ++ ix86_output_indirect_branch (call_op, xasm, true); ++ else ++ output_asm_insn (xasm, &call_op); + return ""; + } + +@@ -27431,14 +28010,28 @@ ix86_output_call_insn (rtx_insn *insn, rtx call_op) + if (direct_p) + { + if (ix86_nopic_noplt_attribute_p (call_op)) +- xasm = "%!call\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}"; ++ { ++ direct_p = false; ++ if (output_indirect_p) ++ xasm = "{%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}"; ++ else ++ xasm = "%!call\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}"; ++ } + else + xasm = "%!call\t%P0"; + } + else +- xasm = "%!call\t%A0"; ++ { ++ if (output_indirect_p) ++ xasm = "%0"; ++ else ++ xasm = "%!call\t%A0"; ++ } + +- output_asm_insn (xasm, &call_op); ++ if (output_indirect_p && !direct_p) ++ ix86_output_indirect_branch (call_op, xasm, false); ++ else ++ output_asm_insn (xasm, &call_op); + + if (seh_nop_p) + return "nop"; +@@ -44836,7 +45429,7 @@ ix86_handle_struct_attribute (tree *node, tree name, tree, int, + } + + static tree +-ix86_handle_fndecl_attribute (tree *node, tree name, tree, int, ++ix86_handle_fndecl_attribute (tree *node, tree name, tree args, int, + bool *no_add_attrs) + { + if (TREE_CODE (*node) != FUNCTION_DECL) +@@ -44845,6 +45438,29 @@ ix86_handle_fndecl_attribute (tree *node, tree name, tree, int, + name); + *no_add_attrs = true; + } ++ ++ if (is_attribute_p ("indirect_branch", name)) ++ { ++ tree cst = TREE_VALUE (args); ++ if (TREE_CODE (cst) != STRING_CST) ++ { ++ warning (OPT_Wattributes, ++ "%qE attribute requires a string constant argument", ++ name); ++ *no_add_attrs = true; ++ } ++ else if (strcmp (TREE_STRING_POINTER (cst), "keep") != 0 ++ && strcmp (TREE_STRING_POINTER (cst), "thunk") != 0 ++ && strcmp (TREE_STRING_POINTER (cst), "thunk-inline") != 0 ++ && strcmp (TREE_STRING_POINTER (cst), "thunk-extern") != 0) ++ { ++ warning (OPT_Wattributes, ++ "argument to %qE attribute is not " ++ "(keep|thunk|thunk-inline|thunk-extern)", name); ++ *no_add_attrs = true; ++ } ++ } ++ + return NULL_TREE; + } + +@@ -49072,6 +49688,9 @@ static const struct attribute_spec ix86_attribute_table[] = + false }, + { "callee_pop_aggregate_return", 1, 1, false, true, true, + ix86_handle_callee_pop_aggregate_return, true }, ++ { "indirect_branch", 1, 1, true, false, false, ++ ix86_handle_fndecl_attribute, false }, ++ + /* End element. */ + { NULL, 0, 0, false, false, false, NULL, false } + }; +diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h +index 54144166172..9dccdb0351e 100644 +--- a/gcc/config/i386/i386.h ++++ b/gcc/config/i386/i386.h +@@ -2572,6 +2572,13 @@ struct GTY(()) machine_function { + /* If true, it is safe to not save/restore DRAP register. */ + BOOL_BITFIELD no_drap_save_restore : 1; + ++ /* How to generate indirec branch. */ ++ ENUM_BITFIELD(indirect_branch) indirect_branch_type : 3; ++ ++ /* If true, the current function has local indirect jumps, like ++ "indirect_jump" or "tablejump". */ ++ BOOL_BITFIELD has_local_indirect_jump : 1; ++ + /* If true, there is register available for argument passing. This + is used only in ix86_function_ok_for_sibcall by 32-bit to determine + if there is scratch register available for indirect sibcall. In +diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md +index d2bfe314f71..153e1622b2d 100644 +--- a/gcc/config/i386/i386.md ++++ b/gcc/config/i386/i386.md +@@ -11807,13 +11807,18 @@ + { + if (TARGET_X32) + operands[0] = convert_memory_address (word_mode, operands[0]); ++ cfun->machine->has_local_indirect_jump = true; + }) + + (define_insn "*indirect_jump" + [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw"))] + "" +- "%!jmp\t%A0" +- [(set_attr "type" "ibr") ++ "* return ix86_output_indirect_jmp (operands[0], false);" ++ [(set (attr "type") ++ (if_then_else (match_test "(cfun->machine->indirect_branch_type ++ != indirect_branch_keep)") ++ (const_string "multi") ++ (const_string "ibr"))) + (set_attr "length_immediate" "0") + (set_attr "maybe_prefix_bnd" "1")]) + +@@ -11856,14 +11861,19 @@ + + if (TARGET_X32) + operands[0] = convert_memory_address (word_mode, operands[0]); ++ cfun->machine->has_local_indirect_jump = true; + }) + + (define_insn "*tablejump_1" + [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw")) + (use (label_ref (match_operand 1)))] + "" +- "%!jmp\t%A0" +- [(set_attr "type" "ibr") ++ "* return ix86_output_indirect_jmp (operands[0], false);" ++ [(set (attr "type") ++ (if_then_else (match_test "(cfun->machine->indirect_branch_type ++ != indirect_branch_keep)") ++ (const_string "multi") ++ (const_string "ibr"))) + (set_attr "length_immediate" "0") + (set_attr "maybe_prefix_bnd" "1")]) + +@@ -12520,8 +12530,12 @@ + [(simple_return) + (use (match_operand:SI 0 "register_operand" "r"))] + "reload_completed" +- "%!jmp\t%A0" +- [(set_attr "type" "ibr") ++ "* return ix86_output_indirect_jmp (operands[0], true);" ++ [(set (attr "type") ++ (if_then_else (match_test "(cfun->machine->indirect_branch_type ++ != indirect_branch_keep)") ++ (const_string "multi") ++ (const_string "ibr"))) + (set_attr "length_immediate" "0") + (set_attr "maybe_prefix_bnd" "1")]) + +diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt +index f304b621e6a..5ffa3349a30 100644 +--- a/gcc/config/i386/i386.opt ++++ b/gcc/config/i386/i386.opt +@@ -897,3 +897,23 @@ Enum(stack_protector_guard) String(global) Value(SSP_GLOBAL) + mmitigate-rop + Target Var(flag_mitigate_rop) Init(0) + Attempt to avoid generating instruction sequences containing ret bytes. ++ ++mindirect-branch= ++Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_indirect_branch) Init(indirect_branch_keep) ++Convert indirect call and jump to call and return thunks. ++ ++Enum ++Name(indirect_branch) Type(enum indirect_branch) ++Known indirect branch choices (for use with the -mindirect-branch= option): ++ ++EnumValue ++Enum(indirect_branch) String(keep) Value(indirect_branch_keep) ++ ++EnumValue ++Enum(indirect_branch) String(thunk) Value(indirect_branch_thunk) ++ ++EnumValue ++Enum(indirect_branch) String(thunk-inline) Value(indirect_branch_thunk_inline) ++ ++EnumValue ++Enum(indirect_branch) String(thunk-extern) Value(indirect_branch_thunk_extern) +diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi +index 8cc4f7e1f6a..8668dae9e99 100644 +--- a/gcc/doc/extend.texi ++++ b/gcc/doc/extend.texi +@@ -5419,6 +5419,16 @@ Specify which floating-point unit to use. You must specify the + @code{target("fpmath=sse,387")} option as + @code{target("fpmath=sse+387")} because the comma would separate + different options. ++ ++@item indirect_branch("@var{choice}") ++@cindex @code{indirect_branch} function attribute, x86 ++On x86 targets, the @code{indirect_branch} attribute causes the compiler ++to convert indirect call and jump with @var{choice}. @samp{keep} ++keeps indirect call and jump unmodified. @samp{thunk} converts indirect ++call and jump to call and return thunk. @samp{thunk-inline} converts ++indirect call and jump to inlined call and return thunk. ++@samp{thunk-extern} converts indirect call and jump to external call ++and return thunk provided in a separate object file. + @end table + + On the x86, the inliner does not inline a +diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi +index 1d3a824d7b8..6f60339a56a 100644 +--- a/gcc/doc/invoke.texi ++++ b/gcc/doc/invoke.texi +@@ -1169,7 +1169,7 @@ See RS/6000 and PowerPC Options. + -msse2avx -mfentry -mrecord-mcount -mnop-mcount -m8bit-idiv @gol + -mavx256-split-unaligned-load -mavx256-split-unaligned-store @gol + -malign-data=@var{type} -mstack-protector-guard=@var{guard} @gol +--mmitigate-rop} ++-mmitigate-rop -mindirect-branch=@var{choice}} + + @emph{x86 Windows Options} + @gccoptlist{-mconsole -mcygwin -mno-cygwin -mdll @gol +@@ -24230,6 +24230,17 @@ opcodes, to mitigate against certain forms of attack. At the moment, + this option is limited in what it can do and should not be relied + on to provide serious protection. + ++@item -mindirect-branch=@var{choice} ++@opindex -mindirect-branch ++Convert indirect call and jump with @var{choice}. The default is ++@samp{keep}, which keeps indirect call and jump unmodified. ++@samp{thunk} converts indirect call and jump to call and return thunk. ++@samp{thunk-inline} converts indirect call and jump to inlined call ++and return thunk. @samp{thunk-extern} converts indirect call and jump ++to external call and return thunk provided in a separate object file. ++You can control this behavior for a specific function by using the ++function attribute @code{indirect_branch}. @xref{Function Attributes}. ++ + @end table + + These @samp{-m} switches are supported in addition to the above +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c +new file mode 100644 +index 00000000000..d983e1c3e26 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c +new file mode 100644 +index 00000000000..58f09b42d8a +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c +new file mode 100644 +index 00000000000..f20d35c19b6 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c +@@ -0,0 +1,21 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++int ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c +new file mode 100644 +index 00000000000..0eff8fb658a +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c +@@ -0,0 +1,21 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++int ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c +new file mode 100644 +index 00000000000..a25b20dd808 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c +@@ -0,0 +1,17 @@ ++/* { dg-do compile { target *-*-linux* } } */ ++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk" } */ ++ ++extern void bar (void); ++ ++void ++foo (void) ++{ ++ bar (); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c +new file mode 100644 +index 00000000000..cff114a6c29 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c +@@ -0,0 +1,18 @@ ++/* { dg-do compile { target *-*-linux* } } */ ++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk" } */ ++ ++extern void bar (void); ++ ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c +new file mode 100644 +index 00000000000..afdb6007986 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c +@@ -0,0 +1,44 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ ++ ++void func0 (void); ++void func1 (void); ++void func2 (void); ++void func3 (void); ++void func4 (void); ++void func4 (void); ++void func5 (void); ++ ++void ++bar (int i) ++{ ++ switch (i) ++ { ++ default: ++ func0 (); ++ break; ++ case 1: ++ func1 (); ++ break; ++ case 2: ++ func2 (); ++ break; ++ case 3: ++ func3 (); ++ break; ++ case 4: ++ func4 (); ++ break; ++ case 5: ++ func5 (); ++ break; ++ } ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c +new file mode 100644 +index 00000000000..d64d978b699 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c +@@ -0,0 +1,23 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++extern void male_indirect_jump (long) ++ __attribute__ ((indirect_branch("thunk"))); ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c +new file mode 100644 +index 00000000000..93067454d3d +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c +@@ -0,0 +1,21 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++__attribute__ ((indirect_branch("thunk"))) ++void ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c +new file mode 100644 +index 00000000000..97744d65729 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c +@@ -0,0 +1,23 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++extern int male_indirect_jump (long) ++ __attribute__ ((indirect_branch("thunk-inline"))); ++ ++int ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c +new file mode 100644 +index 00000000000..bfce3ea5cb2 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c +@@ -0,0 +1,22 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++__attribute__ ((indirect_branch("thunk-inline"))) ++int ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c +new file mode 100644 +index 00000000000..0833606046b +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c +@@ -0,0 +1,22 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++extern int male_indirect_jump (long) ++ __attribute__ ((indirect_branch("thunk-extern"))); ++ ++int ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c +new file mode 100644 +index 00000000000..2eba0fbd9b2 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c +@@ -0,0 +1,21 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++__attribute__ ((indirect_branch("thunk-extern"))) ++int ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c +new file mode 100644 +index 00000000000..f58427eae11 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c +@@ -0,0 +1,44 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -fno-pic" } */ ++ ++void func0 (void); ++void func1 (void); ++void func2 (void); ++void func3 (void); ++void func4 (void); ++void func4 (void); ++void func5 (void); ++ ++__attribute__ ((indirect_branch("thunk-extern"))) ++void ++bar (int i) ++{ ++ switch (i) ++ { ++ default: ++ func0 (); ++ break; ++ case 1: ++ func1 (); ++ break; ++ case 2: ++ func2 (); ++ break; ++ case 3: ++ func3 (); ++ break; ++ case 4: ++ func4 (); ++ break; ++ case 5: ++ func5 (); ++ break; ++ } ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c +new file mode 100644 +index 00000000000..564ed39547c +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c +@@ -0,0 +1,42 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ ++ ++void func0 (void); ++void func1 (void); ++void func2 (void); ++void func3 (void); ++void func4 (void); ++void func4 (void); ++void func5 (void); ++ ++__attribute__ ((indirect_branch("keep"))) ++void ++bar (int i) ++{ ++ switch (i) ++ { ++ default: ++ func0 (); ++ break; ++ case 1: ++ func1 (); ++ break; ++ case 2: ++ func2 (); ++ break; ++ case 3: ++ func3 (); ++ break; ++ case 4: ++ func4 (); ++ break; ++ case 5: ++ func5 (); ++ break; ++ } ++} ++ ++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c +new file mode 100644 +index 00000000000..50fbee20a5a +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile { target { ! x32 } } } */ ++/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ ++ ++void (*dispatch) (char *); ++char buf[10]; ++ ++void ++foo (void) ++{ ++ dispatch (buf); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */ ++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "bnd ret" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c +new file mode 100644 +index 00000000000..2976e67adce +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c +@@ -0,0 +1,21 @@ ++/* { dg-do compile { target { ! x32 } } } */ ++/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ ++ ++void (*dispatch) (char *); ++char buf[10]; ++ ++int ++foo (void) ++{ ++ dispatch (buf); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */ ++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */ ++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "bnd ret" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c +new file mode 100644 +index 00000000000..da4bc98ef23 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */ ++/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */ ++ ++void bar (char *); ++char buf[10]; ++ ++void ++foo (void) ++{ ++ bar (buf); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "bnd ret" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c +new file mode 100644 +index 00000000000..c64d12ef989 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */ ++/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */ ++ ++void bar (char *); ++char buf[10]; ++ ++int ++foo (void) ++{ ++ bar (buf); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-times "bnd call\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler "bnd ret" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c +new file mode 100644 +index 00000000000..49f27b49465 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c +new file mode 100644 +index 00000000000..a1e3eb6fc74 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c +new file mode 100644 +index 00000000000..395634e7e5c +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++int ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c +new file mode 100644 +index 00000000000..fd3f63379a1 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++int ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c +new file mode 100644 +index 00000000000..ba2f92b6f34 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c +@@ -0,0 +1,16 @@ ++/* { dg-do compile { target *-*-linux* } } */ ++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-extern" } */ ++ ++extern void bar (void); ++ ++void ++foo (void) ++{ ++ bar (); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c +new file mode 100644 +index 00000000000..0c5a2d472c6 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c +@@ -0,0 +1,17 @@ ++/* { dg-do compile { target *-*-linux* } } */ ++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-extern" } */ ++ ++extern void bar (void); ++ ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c +new file mode 100644 +index 00000000000..665252327aa +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c +@@ -0,0 +1,43 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */ ++ ++void func0 (void); ++void func1 (void); ++void func2 (void); ++void func3 (void); ++void func4 (void); ++void func4 (void); ++void func5 (void); ++ ++void ++bar (int i) ++{ ++ switch (i) ++ { ++ default: ++ func0 (); ++ break; ++ case 1: ++ func1 (); ++ break; ++ case 2: ++ func2 (); ++ break; ++ case 3: ++ func3 (); ++ break; ++ case 4: ++ func4 (); ++ break; ++ case 5: ++ func5 (); ++ break; ++ } ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c +new file mode 100644 +index 00000000000..68c0ff713b3 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c +new file mode 100644 +index 00000000000..e2da1fcb683 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c +new file mode 100644 +index 00000000000..244fec708d6 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c +@@ -0,0 +1,21 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++int ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-times {\tpause} 1 } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */ ++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c +new file mode 100644 +index 00000000000..107ebe32f54 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c +@@ -0,0 +1,21 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++int ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-times {\tpause} 1 } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */ ++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c +new file mode 100644 +index 00000000000..17b04ef2229 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c +@@ -0,0 +1,17 @@ ++/* { dg-do compile { target *-*-linux* } } */ ++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-inline" } */ ++ ++extern void bar (void); ++ ++void ++foo (void) ++{ ++ bar (); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c +new file mode 100644 +index 00000000000..d9eb11285aa +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c +@@ -0,0 +1,18 @@ ++/* { dg-do compile { target *-*-linux* } } */ ++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-inline" } */ ++ ++extern void bar (void); ++ ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-times {\tpause} 1 } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */ ++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c +new file mode 100644 +index 00000000000..d02b1dcb1b9 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c +@@ -0,0 +1,44 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */ ++ ++void func0 (void); ++void func1 (void); ++void func2 (void); ++void func3 (void); ++void func4 (void); ++void func4 (void); ++void func5 (void); ++ ++void ++bar (int i) ++{ ++ switch (i) ++ { ++ default: ++ func0 (); ++ break; ++ case 1: ++ func1 (); ++ break; ++ case 2: ++ func2 (); ++ break; ++ case 3: ++ func3 (); ++ break; ++ case 4: ++ func4 (); ++ break; ++ case 5: ++ func5 (); ++ break; ++ } ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */ +-- +2.16.3 + diff --git a/main/gcc6/0005-x86-Add-mfunction-return.patch b/main/gcc6/0005-x86-Add-mfunction-return.patch new file mode 100644 index 000000000..f311d0678 --- /dev/null +++ b/main/gcc6/0005-x86-Add-mfunction-return.patch @@ -0,0 +1,1565 @@ +From 3b946bffc536481a484d9a2b98b829f3d71b5519 Mon Sep 17 00:00:00 2001 +From: "H.J. Lu" +Date: Sat, 6 Jan 2018 22:29:56 -0800 +Subject: [PATCH 05/13] x86: Add -mfunction-return= + +Add -mfunction-return= option to convert function return to call and +return thunks. The default is 'keep', which keeps function return +unmodified. 'thunk' converts function return to call and return thunk. +'thunk-inline' converts function return to inlined call and return thunk. +'thunk-extern' converts function return to external call and return +thunk provided in a separate object file. You can control this behavior +for a specific function by using the function attribute function_return. + +Function return thunk is the same as memory thunk for -mindirect-branch= +where the return address is at the top of the stack: + +__x86_return_thunk: + call L2 +L1: + pause + lfence + jmp L1 +L2: + lea 8(%rsp), %rsp|lea 4(%esp), %esp + ret + +and function return becomes + + jmp __x86_return_thunk + +-mindirect-branch= tests are updated with -mfunction-return=keep to +avoid false test failures when -mfunction-return=thunk is added to +RUNTESTFLAGS for "make check". + +gcc/ + + Backport from mainline + 2018-01-14 H.J. Lu + + * config/i386/i386-protos.h (ix86_output_function_return): New. + * config/i386/i386.c (ix86_set_indirect_branch_type): Also + set function_return_type. + (indirect_thunk_name): Add ret_p to indicate thunk for function + return. + (output_indirect_thunk_function): Pass false to + indirect_thunk_name. + (ix86_output_indirect_branch_via_reg): Likewise. + (ix86_output_indirect_branch_via_push): Likewise. + (output_indirect_thunk_function): Create alias for function + return thunk if regno < 0. + (ix86_output_function_return): New function. + (ix86_handle_fndecl_attribute): Handle function_return. + (ix86_attribute_table): Add function_return. + * config/i386/i386.h (machine_function): Add + function_return_type. + * config/i386/i386.md (simple_return_internal): Use + ix86_output_function_return. + (simple_return_internal_long): Likewise. + * config/i386/i386.opt (mfunction-return=): New option. + (indirect_branch): Mention -mfunction-return=. + * doc/extend.texi: Document function_return function attribute. + * doc/invoke.texi: Document -mfunction-return= option. + +gcc/testsuite/ + + Backport from mainline + 2018-01-14 H.J. Lu + + * gcc.target/i386/indirect-thunk-1.c (dg-options): Add + -mfunction-return=keep. + * gcc.target/i386/indirect-thunk-2.c: Likewise. + * gcc.target/i386/indirect-thunk-3.c: Likewise. + * gcc.target/i386/indirect-thunk-4.c: Likewise. + * gcc.target/i386/indirect-thunk-5.c: Likewise. + * gcc.target/i386/indirect-thunk-6.c: Likewise. + * gcc.target/i386/indirect-thunk-7.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-1.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-2.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-3.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-4.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-5.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-6.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-7.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-8.c: Likewise. + * gcc.target/i386/indirect-thunk-bnd-1.c: Likewise. + * gcc.target/i386/indirect-thunk-bnd-2.c: Likewise. + * gcc.target/i386/indirect-thunk-bnd-3.c: Likewise. + * gcc.target/i386/indirect-thunk-bnd-4.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-1.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-2.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-3.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-4.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-5.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-6.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-7.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-1.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-2.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-3.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-4.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-5.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-6.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-7.c: Likewise. + * gcc.target/i386/ret-thunk-1.c: New test. + * gcc.target/i386/ret-thunk-10.c: Likewise. + * gcc.target/i386/ret-thunk-11.c: Likewise. + * gcc.target/i386/ret-thunk-12.c: Likewise. + * gcc.target/i386/ret-thunk-13.c: Likewise. + * gcc.target/i386/ret-thunk-14.c: Likewise. + * gcc.target/i386/ret-thunk-15.c: Likewise. + * gcc.target/i386/ret-thunk-16.c: Likewise. + * gcc.target/i386/ret-thunk-2.c: Likewise. + * gcc.target/i386/ret-thunk-3.c: Likewise. + * gcc.target/i386/ret-thunk-4.c: Likewise. + * gcc.target/i386/ret-thunk-5.c: Likewise. + * gcc.target/i386/ret-thunk-6.c: Likewise. + * gcc.target/i386/ret-thunk-7.c: Likewise. + * gcc.target/i386/ret-thunk-8.c: Likewise. + * gcc.target/i386/ret-thunk-9.c: Likewise. + +i386: Don't use ASM_OUTPUT_DEF for TARGET_MACHO + +ASM_OUTPUT_DEF isn't defined for TARGET_MACHO. Use ASM_OUTPUT_LABEL to +generate the __x86_return_thunk label, instead of the set directive. +Update testcase to remove the __x86_return_thunk label check. Since +-fno-pic is ignored on Darwin, update testcases to sscan or "push" +only on Linux. + +gcc/ + + Backport from mainline + 2018-01-15 H.J. Lu + + PR target/83839 + * config/i386/i386.c (output_indirect_thunk_function): Use + ASM_OUTPUT_LABEL, instead of ASM_OUTPUT_DEF, for TARGET_MACHO + for __x86.return_thunk. + +gcc/testsuite/ + + Backport from mainline + 2018-01-15 H.J. Lu + + PR target/83839 + * gcc.target/i386/indirect-thunk-1.c: Scan for "push" only on + Linux. + * gcc.target/i386/indirect-thunk-2.c: Likewise. + * gcc.target/i386/indirect-thunk-3.c: Likewise. + * gcc.target/i386/indirect-thunk-4.c: Likewise. + * gcc.target/i386/indirect-thunk-7.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-1.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-2.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-5.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-6.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-7.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-1.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-2.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-3.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-4.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-7.c: Likewise. + * gcc.target/i386/indirect-thunk-register-1.c: Likewise. + * gcc.target/i386/indirect-thunk-register-3.c: Likewise. + * gcc.target/i386/indirect-thunk-register-4.c: Likewise. + * gcc.target/i386/ret-thunk-10.c: Likewise. + * gcc.target/i386/ret-thunk-11.c: Likewise. + * gcc.target/i386/ret-thunk-12.c: Likewise. + * gcc.target/i386/ret-thunk-13.c: Likewise. + * gcc.target/i386/ret-thunk-14.c: Likewise. + * gcc.target/i386/ret-thunk-15.c: Likewise. + * gcc.target/i386/ret-thunk-9.c: Don't check the + __x86_return_thunk label. + Scan for "push" only for Linux. +--- + gcc/config/i386/i386-protos.h | 1 + + gcc/config/i386/i386.c | 152 +++++++++++++++++++-- + gcc/config/i386/i386.h | 3 + + gcc/config/i386/i386.md | 9 +- + gcc/config/i386/i386.opt | 6 +- + gcc/doc/extend.texi | 9 ++ + gcc/doc/invoke.texi | 14 +- + gcc/testsuite/gcc.target/i386/indirect-thunk-1.c | 4 +- + gcc/testsuite/gcc.target/i386/indirect-thunk-2.c | 4 +- + gcc/testsuite/gcc.target/i386/indirect-thunk-3.c | 4 +- + gcc/testsuite/gcc.target/i386/indirect-thunk-4.c | 4 +- + gcc/testsuite/gcc.target/i386/indirect-thunk-5.c | 2 +- + gcc/testsuite/gcc.target/i386/indirect-thunk-6.c | 2 +- + gcc/testsuite/gcc.target/i386/indirect-thunk-7.c | 4 +- + .../gcc.target/i386/indirect-thunk-attr-1.c | 4 +- + .../gcc.target/i386/indirect-thunk-attr-2.c | 4 +- + .../gcc.target/i386/indirect-thunk-attr-3.c | 4 +- + .../gcc.target/i386/indirect-thunk-attr-4.c | 4 +- + .../gcc.target/i386/indirect-thunk-attr-5.c | 4 +- + .../gcc.target/i386/indirect-thunk-attr-6.c | 4 +- + .../gcc.target/i386/indirect-thunk-attr-7.c | 4 +- + .../gcc.target/i386/indirect-thunk-attr-8.c | 2 +- + .../gcc.target/i386/indirect-thunk-bnd-1.c | 4 +- + .../gcc.target/i386/indirect-thunk-bnd-2.c | 4 +- + .../gcc.target/i386/indirect-thunk-bnd-3.c | 2 +- + .../gcc.target/i386/indirect-thunk-bnd-4.c | 2 +- + .../gcc.target/i386/indirect-thunk-extern-1.c | 4 +- + .../gcc.target/i386/indirect-thunk-extern-2.c | 4 +- + .../gcc.target/i386/indirect-thunk-extern-3.c | 4 +- + .../gcc.target/i386/indirect-thunk-extern-4.c | 4 +- + .../gcc.target/i386/indirect-thunk-extern-5.c | 2 +- + .../gcc.target/i386/indirect-thunk-extern-6.c | 2 +- + .../gcc.target/i386/indirect-thunk-extern-7.c | 4 +- + .../gcc.target/i386/indirect-thunk-inline-1.c | 4 +- + .../gcc.target/i386/indirect-thunk-inline-2.c | 4 +- + .../gcc.target/i386/indirect-thunk-inline-3.c | 4 +- + .../gcc.target/i386/indirect-thunk-inline-4.c | 4 +- + .../gcc.target/i386/indirect-thunk-inline-5.c | 2 +- + .../gcc.target/i386/indirect-thunk-inline-6.c | 2 +- + .../gcc.target/i386/indirect-thunk-inline-7.c | 4 +- + gcc/testsuite/gcc.target/i386/ret-thunk-1.c | 13 ++ + gcc/testsuite/gcc.target/i386/ret-thunk-10.c | 23 ++++ + gcc/testsuite/gcc.target/i386/ret-thunk-11.c | 23 ++++ + gcc/testsuite/gcc.target/i386/ret-thunk-12.c | 22 +++ + gcc/testsuite/gcc.target/i386/ret-thunk-13.c | 22 +++ + gcc/testsuite/gcc.target/i386/ret-thunk-14.c | 22 +++ + gcc/testsuite/gcc.target/i386/ret-thunk-15.c | 22 +++ + gcc/testsuite/gcc.target/i386/ret-thunk-16.c | 18 +++ + gcc/testsuite/gcc.target/i386/ret-thunk-2.c | 13 ++ + gcc/testsuite/gcc.target/i386/ret-thunk-3.c | 12 ++ + gcc/testsuite/gcc.target/i386/ret-thunk-4.c | 12 ++ + gcc/testsuite/gcc.target/i386/ret-thunk-5.c | 15 ++ + gcc/testsuite/gcc.target/i386/ret-thunk-6.c | 14 ++ + gcc/testsuite/gcc.target/i386/ret-thunk-7.c | 13 ++ + gcc/testsuite/gcc.target/i386/ret-thunk-8.c | 14 ++ + gcc/testsuite/gcc.target/i386/ret-thunk-9.c | 24 ++++ + 56 files changed, 516 insertions(+), 74 deletions(-) + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-1.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-10.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-11.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-12.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-13.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-14.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-15.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-16.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-2.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-3.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-4.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-5.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-6.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-7.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-8.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-9.c + +diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h +index eca4cbf0776..620d70ef9f6 100644 +--- a/gcc/config/i386/i386-protos.h ++++ b/gcc/config/i386/i386-protos.h +@@ -312,6 +312,7 @@ extern enum attr_cpu ix86_schedule; + + extern const char * ix86_output_call_insn (rtx_insn *insn, rtx call_op); + extern const char * ix86_output_indirect_jmp (rtx call_op, bool ret_p); ++extern const char * ix86_output_function_return (bool long_p); + extern bool ix86_operands_ok_for_move_multiple (rtx *operands, bool load, + enum machine_mode mode); + +diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c +index 0b9fc4d3026..34e26a3a3c7 100644 +--- a/gcc/config/i386/i386.c ++++ b/gcc/config/i386/i386.c +@@ -6390,6 +6390,31 @@ ix86_set_indirect_branch_type (tree fndecl) + else + cfun->machine->indirect_branch_type = ix86_indirect_branch; + } ++ ++ if (cfun->machine->function_return_type == indirect_branch_unset) ++ { ++ tree attr = lookup_attribute ("function_return", ++ DECL_ATTRIBUTES (fndecl)); ++ if (attr != NULL) ++ { ++ tree args = TREE_VALUE (attr); ++ if (args == NULL) ++ gcc_unreachable (); ++ tree cst = TREE_VALUE (args); ++ if (strcmp (TREE_STRING_POINTER (cst), "keep") == 0) ++ cfun->machine->function_return_type = indirect_branch_keep; ++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk") == 0) ++ cfun->machine->function_return_type = indirect_branch_thunk; ++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk-inline") == 0) ++ cfun->machine->function_return_type = indirect_branch_thunk_inline; ++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk-extern") == 0) ++ cfun->machine->function_return_type = indirect_branch_thunk_extern; ++ else ++ gcc_unreachable (); ++ } ++ else ++ cfun->machine->function_return_type = ix86_function_return; ++ } + } + + /* Establish appropriate back-end context for processing the function +@@ -11036,8 +11061,12 @@ static int indirect_thunks_bnd_used; + /* Fills in the label name that should be used for the indirect thunk. */ + + static void +-indirect_thunk_name (char name[32], int regno, bool need_bnd_p) ++indirect_thunk_name (char name[32], int regno, bool need_bnd_p, ++ bool ret_p) + { ++ if (regno >= 0 && ret_p) ++ gcc_unreachable (); ++ + if (USE_HIDDEN_LINKONCE) + { + const char *bnd = need_bnd_p ? "_bnd" : ""; +@@ -11052,7 +11081,10 @@ indirect_thunk_name (char name[32], int regno, bool need_bnd_p) + bnd, reg_prefix, reg_names[regno]); + } + else +- sprintf (name, "__x86_indirect_thunk%s", bnd); ++ { ++ const char *ret = ret_p ? "return" : "indirect"; ++ sprintf (name, "__x86_%s_thunk%s", ret, bnd); ++ } + } + else + { +@@ -11065,10 +11097,20 @@ indirect_thunk_name (char name[32], int regno, bool need_bnd_p) + } + else + { +- if (need_bnd_p) +- ASM_GENERATE_INTERNAL_LABEL (name, "LITB", 0); ++ if (ret_p) ++ { ++ if (need_bnd_p) ++ ASM_GENERATE_INTERNAL_LABEL (name, "LRTB", 0); ++ else ++ ASM_GENERATE_INTERNAL_LABEL (name, "LRT", 0); ++ } + else +- ASM_GENERATE_INTERNAL_LABEL (name, "LIT", 0); ++ { ++ if (need_bnd_p) ++ ASM_GENERATE_INTERNAL_LABEL (name, "LITB", 0); ++ else ++ ASM_GENERATE_INTERNAL_LABEL (name, "LIT", 0); ++ } + } + } + } +@@ -11163,7 +11205,7 @@ output_indirect_thunk_function (bool need_bnd_p, int regno) + tree decl; + + /* Create __x86_indirect_thunk/__x86_indirect_thunk_bnd. */ +- indirect_thunk_name (name, regno, need_bnd_p); ++ indirect_thunk_name (name, regno, need_bnd_p, false); + decl = build_decl (BUILTINS_LOCATION, FUNCTION_DECL, + get_identifier (name), + build_function_type_list (void_type_node, NULL_TREE)); +@@ -11206,6 +11248,36 @@ output_indirect_thunk_function (bool need_bnd_p, int regno) + ASM_OUTPUT_LABEL (asm_out_file, name); + } + ++ if (regno < 0) ++ { ++ /* Create alias for __x86.return_thunk/__x86.return_thunk_bnd. */ ++ char alias[32]; ++ ++ indirect_thunk_name (alias, regno, need_bnd_p, true); ++#if TARGET_MACHO ++ if (TARGET_MACHO) ++ { ++ fputs ("\t.weak_definition\t", asm_out_file); ++ assemble_name (asm_out_file, alias); ++ fputs ("\n\t.private_extern\t", asm_out_file); ++ assemble_name (asm_out_file, alias); ++ putc ('\n', asm_out_file); ++ ASM_OUTPUT_LABEL (asm_out_file, alias); ++ } ++#else ++ ASM_OUTPUT_DEF (asm_out_file, alias, name); ++ if (USE_HIDDEN_LINKONCE) ++ { ++ fputs ("\t.globl\t", asm_out_file); ++ assemble_name (asm_out_file, alias); ++ putc ('\n', asm_out_file); ++ fputs ("\t.hidden\t", asm_out_file); ++ assemble_name (asm_out_file, alias); ++ putc ('\n', asm_out_file); ++ } ++#endif ++ } ++ + DECL_INITIAL (decl) = make_node (BLOCK); + current_function_decl = decl; + allocate_struct_function (decl, false); +@@ -27687,7 +27759,7 @@ ix86_output_indirect_branch_via_reg (rtx call_op, bool sibcall_p) + else + indirect_thunks_used |= 1 << i; + } +- indirect_thunk_name (thunk_name_buf, regno, need_bnd_p); ++ indirect_thunk_name (thunk_name_buf, regno, need_bnd_p, false); + thunk_name = thunk_name_buf; + } + else +@@ -27796,7 +27868,7 @@ ix86_output_indirect_branch_via_push (rtx call_op, const char *xasm, + else + indirect_thunk_needed = true; + } +- indirect_thunk_name (thunk_name_buf, regno, need_bnd_p); ++ indirect_thunk_name (thunk_name_buf, regno, need_bnd_p, false); + thunk_name = thunk_name_buf; + } + else +@@ -27931,6 +28003,46 @@ ix86_output_indirect_jmp (rtx call_op, bool ret_p) + return "%!jmp\t%A0"; + } + ++/* Output function return. CALL_OP is the jump target. Add a REP ++ prefix to RET if LONG_P is true and function return is kept. */ ++ ++const char * ++ix86_output_function_return (bool long_p) ++{ ++ if (cfun->machine->function_return_type != indirect_branch_keep) ++ { ++ char thunk_name[32]; ++ bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn); ++ ++ if (cfun->machine->function_return_type ++ != indirect_branch_thunk_inline) ++ { ++ bool need_thunk = (cfun->machine->function_return_type ++ == indirect_branch_thunk); ++ indirect_thunk_name (thunk_name, -1, need_bnd_p, true); ++ if (need_bnd_p) ++ { ++ indirect_thunk_bnd_needed |= need_thunk; ++ fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name); ++ } ++ else ++ { ++ indirect_thunk_needed |= need_thunk; ++ fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name); ++ } ++ } ++ else ++ output_indirect_thunk (need_bnd_p, -1); ++ ++ return ""; ++ } ++ ++ if (!long_p || ix86_bnd_prefixed_insn_p (current_output_insn)) ++ return "%!ret"; ++ ++ return "rep%; ret"; ++} ++ + /* Output the assembly for a call instruction. */ + + const char * +@@ -45461,6 +45573,28 @@ ix86_handle_fndecl_attribute (tree *node, tree name, tree args, int, + } + } + ++ if (is_attribute_p ("function_return", name)) ++ { ++ tree cst = TREE_VALUE (args); ++ if (TREE_CODE (cst) != STRING_CST) ++ { ++ warning (OPT_Wattributes, ++ "%qE attribute requires a string constant argument", ++ name); ++ *no_add_attrs = true; ++ } ++ else if (strcmp (TREE_STRING_POINTER (cst), "keep") != 0 ++ && strcmp (TREE_STRING_POINTER (cst), "thunk") != 0 ++ && strcmp (TREE_STRING_POINTER (cst), "thunk-inline") != 0 ++ && strcmp (TREE_STRING_POINTER (cst), "thunk-extern") != 0) ++ { ++ warning (OPT_Wattributes, ++ "argument to %qE attribute is not " ++ "(keep|thunk|thunk-inline|thunk-extern)", name); ++ *no_add_attrs = true; ++ } ++ } ++ + return NULL_TREE; + } + +@@ -49690,6 +49824,8 @@ static const struct attribute_spec ix86_attribute_table[] = + ix86_handle_callee_pop_aggregate_return, true }, + { "indirect_branch", 1, 1, true, false, false, + ix86_handle_fndecl_attribute, false }, ++ { "function_return", 1, 1, true, false, false, ++ ix86_handle_fndecl_attribute, false }, + + /* End element. */ + { NULL, 0, 0, false, false, false, NULL, false } +diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h +index 9dccdb0351e..b34bc117c34 100644 +--- a/gcc/config/i386/i386.h ++++ b/gcc/config/i386/i386.h +@@ -2579,6 +2579,9 @@ struct GTY(()) machine_function { + "indirect_jump" or "tablejump". */ + BOOL_BITFIELD has_local_indirect_jump : 1; + ++ /* How to generate function return. */ ++ ENUM_BITFIELD(indirect_branch) function_return_type : 3; ++ + /* If true, there is register available for argument passing. This + is used only in ix86_function_ok_for_sibcall by 32-bit to determine + if there is scratch register available for indirect sibcall. In +diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md +index 153e1622b2d..2da671e9f2d 100644 +--- a/gcc/config/i386/i386.md ++++ b/gcc/config/i386/i386.md +@@ -12489,7 +12489,7 @@ + (define_insn "simple_return_internal" + [(simple_return)] + "reload_completed" +- "%!ret" ++ "* return ix86_output_function_return (false);" + [(set_attr "length" "1") + (set_attr "atom_unit" "jeu") + (set_attr "length_immediate" "0") +@@ -12503,12 +12503,7 @@ + [(simple_return) + (unspec [(const_int 0)] UNSPEC_REP)] + "reload_completed" +-{ +- if (ix86_bnd_prefixed_insn_p (insn)) +- return "%!ret"; +- +- return "rep%; ret"; +-} ++ "* return ix86_output_function_return (true);" + [(set_attr "length" "2") + (set_attr "atom_unit" "jeu") + (set_attr "length_immediate" "0") +diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt +index 5ffa3349a30..ad5916fb643 100644 +--- a/gcc/config/i386/i386.opt ++++ b/gcc/config/i386/i386.opt +@@ -902,9 +902,13 @@ mindirect-branch= + Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_indirect_branch) Init(indirect_branch_keep) + Convert indirect call and jump to call and return thunks. + ++mfunction-return= ++Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_function_return) Init(indirect_branch_keep) ++Convert function return to call and return thunk. ++ + Enum + Name(indirect_branch) Type(enum indirect_branch) +-Known indirect branch choices (for use with the -mindirect-branch= option): ++Known indirect branch choices (for use with the -mindirect-branch=/-mfunction-return= options): + + EnumValue + Enum(indirect_branch) String(keep) Value(indirect_branch_keep) +diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi +index 8668dae9e99..2cb6bd1ef3e 100644 +--- a/gcc/doc/extend.texi ++++ b/gcc/doc/extend.texi +@@ -5429,6 +5429,15 @@ call and jump to call and return thunk. @samp{thunk-inline} converts + indirect call and jump to inlined call and return thunk. + @samp{thunk-extern} converts indirect call and jump to external call + and return thunk provided in a separate object file. ++ ++@item function_return("@var{choice}") ++@cindex @code{function_return} function attribute, x86 ++On x86 targets, the @code{function_return} attribute causes the compiler ++to convert function return with @var{choice}. @samp{keep} keeps function ++return unmodified. @samp{thunk} converts function return to call and ++return thunk. @samp{thunk-inline} converts function return to inlined ++call and return thunk. @samp{thunk-extern} converts function return to ++external call and return thunk provided in a separate object file. + @end table + + On the x86, the inliner does not inline a +diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi +index 6f60339a56a..337a761015a 100644 +--- a/gcc/doc/invoke.texi ++++ b/gcc/doc/invoke.texi +@@ -1169,7 +1169,8 @@ See RS/6000 and PowerPC Options. + -msse2avx -mfentry -mrecord-mcount -mnop-mcount -m8bit-idiv @gol + -mavx256-split-unaligned-load -mavx256-split-unaligned-store @gol + -malign-data=@var{type} -mstack-protector-guard=@var{guard} @gol +--mmitigate-rop -mindirect-branch=@var{choice}} ++-mmitigate-rop -mindirect-branch=@var{choice} @gol ++-mfunction-return=@var{choice}} + + @emph{x86 Windows Options} + @gccoptlist{-mconsole -mcygwin -mno-cygwin -mdll @gol +@@ -24241,6 +24242,17 @@ to external call and return thunk provided in a separate object file. + You can control this behavior for a specific function by using the + function attribute @code{indirect_branch}. @xref{Function Attributes}. + ++@item -mfunction-return=@var{choice} ++@opindex -mfunction-return ++Convert function return with @var{choice}. The default is @samp{keep}, ++which keeps function return unmodified. @samp{thunk} converts function ++return to call and return thunk. @samp{thunk-inline} converts function ++return to inlined call and return thunk. @samp{thunk-extern} converts ++function return to external call and return thunk provided in a separate ++object file. You can control this behavior for a specific function by ++using the function attribute @code{function_return}. ++@xref{Function Attributes}. ++ + @end table + + These @samp{-m} switches are supported in addition to the above +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c +index d983e1c3e26..e365ef5698a 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -11,7 +11,7 @@ male_indirect_jump (long offset) + dispatch(offset); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c +index 58f09b42d8a..05a51ad9157 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -11,7 +11,7 @@ male_indirect_jump (long offset) + dispatch[offset](offset); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c +index f20d35c19b6..3c0d4c39f0b 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -12,7 +12,7 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c +index 0eff8fb658a..14d4ef6dd98 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -12,7 +12,7 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c +index a25b20dd808..b4836c38d6c 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target *-*-linux* } } */ +-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk" } */ ++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */ + + extern void bar (void); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c +index cff114a6c29..1f06bd1af74 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target *-*-linux* } } */ +-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk" } */ ++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */ + + extern void bar (void); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c +index afdb6007986..bc6b47a636e 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ + + void func0 (void); + void func1 (void); +@@ -35,7 +35,7 @@ bar (int i) + } + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c +index d64d978b699..2257be3affa 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -14,7 +14,7 @@ male_indirect_jump (long offset) + dispatch(offset); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c +index 93067454d3d..e9cfdc5879e 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -12,7 +12,7 @@ male_indirect_jump (long offset) + dispatch[offset](offset); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c +index 97744d65729..f938db050f7 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -14,7 +14,7 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c +index bfce3ea5cb2..4e58599692a 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -13,7 +13,7 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c +index 0833606046b..b8d50249d8b 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -14,7 +14,7 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ + /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c +index 2eba0fbd9b2..455adabfe0e 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -13,7 +13,7 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ + /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c +index f58427eae11..4595b841ec0 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ + + void func0 (void); + void func1 (void); +@@ -36,7 +36,7 @@ bar (int i) + } + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */ + /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c +index 564ed39547c..d730d31bda1 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ + + void func0 (void); + void func1 (void); +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c +index 50fbee20a5a..5e3e118e9bd 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target { ! x32 } } } */ +-/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ + + void (*dispatch) (char *); + char buf[10]; +@@ -10,7 +10,7 @@ foo (void) + dispatch (buf); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */ + /* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c +index 2976e67adce..2801aa4192e 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target { ! x32 } } } */ +-/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ + + void (*dispatch) (char *); + char buf[10]; +@@ -11,7 +11,7 @@ foo (void) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */ + /* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */ + /* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c +index da4bc98ef23..70b4fb36eea 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */ +-/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */ + + void bar (char *); + char buf[10]; +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c +index c64d12ef989..3baf03ee77c 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */ +-/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */ + + void bar (char *); + char buf[10]; +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c +index 49f27b49465..edeb264218c 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -11,7 +11,7 @@ male_indirect_jump (long offset) + dispatch(offset); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ + /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c +index a1e3eb6fc74..1d00413a76a 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -11,7 +11,7 @@ male_indirect_jump (long offset) + dispatch[offset](offset); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ + /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c +index 395634e7e5c..06ebf1c9063 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -12,7 +12,7 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ + /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c +index fd3f63379a1..1c8f9446636 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -12,7 +12,7 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ + /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c +index ba2f92b6f34..21740ac5b7f 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target *-*-linux* } } */ +-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-extern" } */ ++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */ + + extern void bar (void); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c +index 0c5a2d472c6..a77c1f470b8 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target *-*-linux* } } */ +-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-extern" } */ ++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */ + + extern void bar (void); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c +index 665252327aa..86e9fd1f1e4 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ + + void func0 (void); + void func1 (void); +@@ -35,7 +35,7 @@ bar (int i) + } + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ + /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c +index 68c0ff713b3..3ecde878867 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -11,7 +11,7 @@ male_indirect_jump (long offset) + dispatch(offset); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c +index e2da1fcb683..df32a19a2b5 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -11,7 +11,7 @@ male_indirect_jump (long offset) + dispatch[offset](offset); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c +index 244fec708d6..9540996de01 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -12,7 +12,7 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler-times {\tpause} 1 } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c +index 107ebe32f54..f3db6e2441f 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +@@ -12,7 +12,7 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler-times {\tpause} 1 } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c +index 17b04ef2229..0f687c3b027 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target *-*-linux* } } */ +-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-inline" } */ ++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */ + + extern void bar (void); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c +index d9eb11285aa..b27c6fc96a2 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target *-*-linux* } } */ +-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-inline" } */ ++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */ + + extern void bar (void); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c +index d02b1dcb1b9..764a375fc37 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ + + void func0 (void); + void func1 (void); +@@ -35,7 +35,7 @@ bar (int i) + } + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-1.c b/gcc/testsuite/gcc.target/i386/ret-thunk-1.c +new file mode 100644 +index 00000000000..7223f67ba5e +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-1.c +@@ -0,0 +1,13 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=thunk" } */ ++ ++void ++foo (void) ++{ ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c +new file mode 100644 +index 00000000000..3a6727b5c54 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c +@@ -0,0 +1,23 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=thunk-inline -mindirect-branch=thunk -fno-pic" } */ ++ ++extern void (*bar) (void); ++ ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */ ++/* { dg-final { scan-assembler-times {\tpause} 2 } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 2 } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */ ++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c +new file mode 100644 +index 00000000000..b8f68188313 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c +@@ -0,0 +1,23 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=thunk-extern -mindirect-branch=thunk -fno-pic" } */ ++ ++extern void (*bar) (void); ++ ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */ ++/* { dg-final { scan-assembler-times {\tpause} 1 } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */ ++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c +new file mode 100644 +index 00000000000..01b0a02f80b +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c +@@ -0,0 +1,22 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ ++ ++extern void (*bar) (void); ++ ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */ ++/* { dg-final { scan-assembler-times {\tpause} 1 } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */ ++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c +new file mode 100644 +index 00000000000..4b497b5f8af +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c +@@ -0,0 +1,22 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ ++ ++extern void (*bar) (void); ++extern int foo (void) __attribute__ ((function_return("thunk"))); ++ ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */ ++/* { dg-final { scan-assembler-times {\tpause} 2 } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 2 } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 3 } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 3 } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c +new file mode 100644 +index 00000000000..4ae4c44a3fd +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c +@@ -0,0 +1,22 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ ++ ++extern void (*bar) (void); ++ ++__attribute__ ((function_return("thunk-inline"))) ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler-times {\tpause} 1 } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c +new file mode 100644 +index 00000000000..5b5bc765a7e +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c +@@ -0,0 +1,22 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -fno-pic" } */ ++ ++extern void (*bar) (void); ++ ++__attribute__ ((function_return("thunk-extern"), indirect_branch("thunk"))) ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-times {\tpause} 1 } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-16.c b/gcc/testsuite/gcc.target/i386/ret-thunk-16.c +new file mode 100644 +index 00000000000..a16cad16aaa +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-16.c +@@ -0,0 +1,18 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=thunk-inline -mindirect-branch=thunk-extern -fno-pic" } */ ++ ++extern void (*bar) (void); ++ ++__attribute__ ((function_return("keep"), indirect_branch("keep"))) ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "__x86_return_thunk" } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-2.c b/gcc/testsuite/gcc.target/i386/ret-thunk-2.c +new file mode 100644 +index 00000000000..c6659e3ad09 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-2.c +@@ -0,0 +1,13 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=thunk-inline" } */ ++ ++void ++foo (void) ++{ ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-3.c b/gcc/testsuite/gcc.target/i386/ret-thunk-3.c +new file mode 100644 +index 00000000000..0f7f388f459 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-3.c +@@ -0,0 +1,12 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=thunk-extern" } */ ++ ++void ++foo (void) ++{ ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-4.c b/gcc/testsuite/gcc.target/i386/ret-thunk-4.c +new file mode 100644 +index 00000000000..9ae37e835a0 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-4.c +@@ -0,0 +1,12 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=keep" } */ ++ ++void ++foo (void) ++{ ++} ++ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-5.c b/gcc/testsuite/gcc.target/i386/ret-thunk-5.c +new file mode 100644 +index 00000000000..4bd0d2a27bc +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-5.c +@@ -0,0 +1,15 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=keep" } */ ++ ++extern void foo (void) __attribute__ ((function_return("thunk"))); ++ ++void ++foo (void) ++{ ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-6.c b/gcc/testsuite/gcc.target/i386/ret-thunk-6.c +new file mode 100644 +index 00000000000..053841f6f7d +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-6.c +@@ -0,0 +1,14 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=keep" } */ ++ ++__attribute__ ((function_return("thunk-inline"))) ++void ++foo (void) ++{ ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-7.c b/gcc/testsuite/gcc.target/i386/ret-thunk-7.c +new file mode 100644 +index 00000000000..262e6780112 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-7.c +@@ -0,0 +1,13 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=keep" } */ ++ ++__attribute__ ((function_return("thunk-extern"))) ++void ++foo (void) ++{ ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-8.c b/gcc/testsuite/gcc.target/i386/ret-thunk-8.c +new file mode 100644 +index 00000000000..c1658e96673 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-8.c +@@ -0,0 +1,14 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=thunk-inline" } */ ++ ++extern void foo (void) __attribute__ ((function_return("keep"))); ++ ++void ++foo (void) ++{ ++} ++ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c +new file mode 100644 +index 00000000000..fa24a1f7365 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c +@@ -0,0 +1,24 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=thunk -mindirect-branch=thunk -fno-pic" } */ ++ ++extern void (*bar) (void); ++ ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "__x86_indirect_thunk:" } } */ ++/* { dg-final { scan-assembler-times {\tpause} 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times {\tpause} 2 { target { x32 } } } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 2 { target { x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +-- +2.16.3 + diff --git a/main/gcc6/0006-x86-Add-mindirect-branch-register.patch b/main/gcc6/0006-x86-Add-mindirect-branch-register.patch new file mode 100644 index 000000000..111e6e43d --- /dev/null +++ b/main/gcc6/0006-x86-Add-mindirect-branch-register.patch @@ -0,0 +1,941 @@ +From 61bb7f0e152ce5be700a44007d036ea0de4b254d Mon Sep 17 00:00:00 2001 +From: "H.J. Lu" +Date: Sat, 6 Jan 2018 22:29:56 -0800 +Subject: [PATCH 06/13] x86: Add -mindirect-branch-register + +Add -mindirect-branch-register to force indirect branch via register. +This is implemented by disabling patterns of indirect branch via memory, +similar to TARGET_X32. + +-mindirect-branch= and -mfunction-return= tests are updated with +-mno-indirect-branch-register to avoid false test failures when +-mindirect-branch-register is added to RUNTESTFLAGS for "make check". + +gcc/ + + Backport from mainline + 2018-01-14 H.J. Lu + + * config/i386/constraints.md (Bs): Disallow memory operand for + -mindirect-branch-register. + (Bw): Likewise. + * config/i386/predicates.md (indirect_branch_operand): Likewise. + (GOT_memory_operand): Likewise. + (call_insn_operand): Likewise. + (sibcall_insn_operand): Likewise. + (GOT32_symbol_operand): Likewise. + * config/i386/i386.md (indirect_jump): Call convert_memory_address + for -mindirect-branch-register. + (tablejump): Likewise. + (*sibcall_memory): Likewise. + (*sibcall_value_memory): Likewise. + Disallow peepholes of indirect call and jump via memory for + -mindirect-branch-register. + (*call_pop): Replace m with Bw. + (*call_value_pop): Likewise. + (*sibcall_pop_memory): Replace m with Bs. + * config/i386/i386.opt (mindirect-branch-register): New option. + * doc/invoke.texi: Document -mindirect-branch-register option. + +gcc/testsuite/ + + Backport from mainline + 2018-01-14 H.J. Lu + + * gcc.target/i386/indirect-thunk-1.c (dg-options): Add + -mno-indirect-branch-register. + * gcc.target/i386/indirect-thunk-2.c: Likewise. + * gcc.target/i386/indirect-thunk-3.c: Likewise. + * gcc.target/i386/indirect-thunk-4.c: Likewise. + * gcc.target/i386/indirect-thunk-5.c: Likewise. + * gcc.target/i386/indirect-thunk-6.c: Likewise. + * gcc.target/i386/indirect-thunk-7.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-1.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-2.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-3.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-4.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-5.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-6.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-7.c: Likewise. + * gcc.target/i386/indirect-thunk-bnd-1.c: Likewise. + * gcc.target/i386/indirect-thunk-bnd-2.c: Likewise. + * gcc.target/i386/indirect-thunk-bnd-3.c: Likewise. + * gcc.target/i386/indirect-thunk-bnd-4.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-1.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-2.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-3.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-4.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-5.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-6.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-7.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-1.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-2.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-3.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-4.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-5.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-6.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-7.c: Likewise. + * gcc.target/i386/ret-thunk-10.c: Likewise. + * gcc.target/i386/ret-thunk-11.c: Likewise. + * gcc.target/i386/ret-thunk-12.c: Likewise. + * gcc.target/i386/ret-thunk-13.c: Likewise. + * gcc.target/i386/ret-thunk-14.c: Likewise. + * gcc.target/i386/ret-thunk-15.c: Likewise. + * gcc.target/i386/ret-thunk-9.c: Likewise. + * gcc.target/i386/indirect-thunk-register-1.c: New test. + * gcc.target/i386/indirect-thunk-register-2.c: Likewise. + * gcc.target/i386/indirect-thunk-register-3.c: Likewise. + +i386: Rename to ix86_indirect_branch_register + +Rename the variable for -mindirect-branch-register to +ix86_indirect_branch_register to match the command-line option name. + + Backport from mainline + 2018-01-15 H.J. Lu + + * config/i386/constraints.md (Bs): Replace + ix86_indirect_branch_thunk_register with + ix86_indirect_branch_register. + (Bw): Likewise. + * config/i386/i386.md (indirect_jump): Likewise. + (tablejump): Likewise. + (*sibcall_memory): Likewise. + (*sibcall_value_memory): Likewise. + Peepholes of indirect call and jump via memory: Likewise. + * config/i386/i386.opt: Likewise. + * config/i386/predicates.md (indirect_branch_operand): Likewise. + (GOT_memory_operand): Likewise. + (call_insn_operand): Likewise. + (sibcall_insn_operand): Likewise. + (GOT32_symbol_operand): Likewise. + +x86: Rewrite ix86_indirect_branch_register logic + +Rewrite ix86_indirect_branch_register logic with + +(and (not (match_test "ix86_indirect_branch_register")) + (original condition before r256662)) + + Backport from mainline + 2018-01-15 H.J. Lu + + * config/i386/predicates.md (constant_call_address_operand): + Rewrite ix86_indirect_branch_register logic. + (sibcall_insn_operand): Likewise. + +Don't check ix86_indirect_branch_register for GOT operand + +Since GOT_memory_operand and GOT32_symbol_operand are simple pattern +matches, don't check ix86_indirect_branch_register here. If needed, +-mindirect-branch= will convert indirect branch via GOT slot to a call +and return thunk. + + Backport from mainline + 2018-01-15 H.J. Lu + + * config/i386/constraints.md (Bs): Update + ix86_indirect_branch_register check. Don't check + ix86_indirect_branch_register with GOT_memory_operand. + (Bw): Likewise. + * config/i386/predicates.md (GOT_memory_operand): Don't check + ix86_indirect_branch_register here. + (GOT32_symbol_operand): Likewise. + +i386: Rewrite indirect_branch_operand logic + + Backport from mainline + 2018-01-15 H.J. Lu + + * config/i386/predicates.md (indirect_branch_operand): Rewrite + ix86_indirect_branch_register logic. +--- + gcc/config/i386/constraints.md | 6 ++-- + gcc/config/i386/i386.md | 34 ++++++++++++++-------- + gcc/config/i386/i386.opt | 4 +++ + gcc/config/i386/predicates.md | 21 +++++++------ + gcc/doc/invoke.texi | 6 +++- + gcc/testsuite/gcc.target/i386/indirect-thunk-1.c | 2 +- + gcc/testsuite/gcc.target/i386/indirect-thunk-2.c | 2 +- + gcc/testsuite/gcc.target/i386/indirect-thunk-3.c | 2 +- + gcc/testsuite/gcc.target/i386/indirect-thunk-4.c | 2 +- + gcc/testsuite/gcc.target/i386/indirect-thunk-5.c | 2 +- + gcc/testsuite/gcc.target/i386/indirect-thunk-6.c | 2 +- + gcc/testsuite/gcc.target/i386/indirect-thunk-7.c | 2 +- + .../gcc.target/i386/indirect-thunk-attr-1.c | 2 +- + .../gcc.target/i386/indirect-thunk-attr-2.c | 2 +- + .../gcc.target/i386/indirect-thunk-attr-3.c | 2 +- + .../gcc.target/i386/indirect-thunk-attr-4.c | 2 +- + .../gcc.target/i386/indirect-thunk-attr-5.c | 2 +- + .../gcc.target/i386/indirect-thunk-attr-6.c | 2 +- + .../gcc.target/i386/indirect-thunk-attr-7.c | 2 +- + .../gcc.target/i386/indirect-thunk-bnd-1.c | 2 +- + .../gcc.target/i386/indirect-thunk-bnd-2.c | 2 +- + .../gcc.target/i386/indirect-thunk-bnd-3.c | 2 +- + .../gcc.target/i386/indirect-thunk-bnd-4.c | 2 +- + .../gcc.target/i386/indirect-thunk-extern-1.c | 2 +- + .../gcc.target/i386/indirect-thunk-extern-2.c | 2 +- + .../gcc.target/i386/indirect-thunk-extern-3.c | 2 +- + .../gcc.target/i386/indirect-thunk-extern-4.c | 2 +- + .../gcc.target/i386/indirect-thunk-extern-5.c | 2 +- + .../gcc.target/i386/indirect-thunk-extern-6.c | 2 +- + .../gcc.target/i386/indirect-thunk-extern-7.c | 2 +- + .../gcc.target/i386/indirect-thunk-inline-1.c | 2 +- + .../gcc.target/i386/indirect-thunk-inline-2.c | 2 +- + .../gcc.target/i386/indirect-thunk-inline-3.c | 2 +- + .../gcc.target/i386/indirect-thunk-inline-4.c | 2 +- + .../gcc.target/i386/indirect-thunk-inline-5.c | 2 +- + .../gcc.target/i386/indirect-thunk-inline-6.c | 2 +- + .../gcc.target/i386/indirect-thunk-inline-7.c | 2 +- + .../gcc.target/i386/indirect-thunk-register-1.c | 22 ++++++++++++++ + .../gcc.target/i386/indirect-thunk-register-2.c | 20 +++++++++++++ + .../gcc.target/i386/indirect-thunk-register-3.c | 19 ++++++++++++ + gcc/testsuite/gcc.target/i386/ret-thunk-10.c | 2 +- + gcc/testsuite/gcc.target/i386/ret-thunk-11.c | 2 +- + gcc/testsuite/gcc.target/i386/ret-thunk-12.c | 2 +- + gcc/testsuite/gcc.target/i386/ret-thunk-13.c | 2 +- + gcc/testsuite/gcc.target/i386/ret-thunk-14.c | 2 +- + gcc/testsuite/gcc.target/i386/ret-thunk-15.c | 2 +- + gcc/testsuite/gcc.target/i386/ret-thunk-9.c | 2 +- + 47 files changed, 147 insertions(+), 63 deletions(-) + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c + +diff --git a/gcc/config/i386/constraints.md b/gcc/config/i386/constraints.md +index 1a4c701ad13..9204c8e8487 100644 +--- a/gcc/config/i386/constraints.md ++++ b/gcc/config/i386/constraints.md +@@ -172,14 +172,16 @@ + + (define_constraint "Bs" + "@internal Sibcall memory operand." +- (ior (and (not (match_test "TARGET_X32")) ++ (ior (and (not (match_test "ix86_indirect_branch_register")) ++ (not (match_test "TARGET_X32")) + (match_operand 0 "sibcall_memory_operand")) + (and (match_test "TARGET_X32 && Pmode == DImode") + (match_operand 0 "GOT_memory_operand")))) + + (define_constraint "Bw" + "@internal Call memory operand." +- (ior (and (not (match_test "TARGET_X32")) ++ (ior (and (not (match_test "ix86_indirect_branch_register")) ++ (not (match_test "TARGET_X32")) + (match_operand 0 "memory_operand")) + (and (match_test "TARGET_X32 && Pmode == DImode") + (match_operand 0 "GOT_memory_operand")))) +diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md +index 2da671e9f2d..05a88fff356 100644 +--- a/gcc/config/i386/i386.md ++++ b/gcc/config/i386/i386.md +@@ -11805,7 +11805,7 @@ + [(set (pc) (match_operand 0 "indirect_branch_operand"))] + "" + { +- if (TARGET_X32) ++ if (TARGET_X32 || ix86_indirect_branch_register) + operands[0] = convert_memory_address (word_mode, operands[0]); + cfun->machine->has_local_indirect_jump = true; + }) +@@ -11859,7 +11859,7 @@ + OPTAB_DIRECT); + } + +- if (TARGET_X32) ++ if (TARGET_X32 || ix86_indirect_branch_register) + operands[0] = convert_memory_address (word_mode, operands[0]); + cfun->machine->has_local_indirect_jump = true; + }) +@@ -12048,7 +12048,7 @@ + [(call (mem:QI (match_operand:W 0 "memory_operand" "m")) + (match_operand 1)) + (unspec [(const_int 0)] UNSPEC_PEEPSIB)] +- "!TARGET_X32" ++ "!TARGET_X32 && !ix86_indirect_branch_register" + "* return ix86_output_call_insn (insn, operands[0]);" + [(set_attr "type" "call")]) + +@@ -12057,7 +12057,9 @@ + (match_operand:W 1 "memory_operand")) + (call (mem:QI (match_dup 0)) + (match_operand 3))] +- "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (1)) ++ "!TARGET_X32 ++ && !ix86_indirect_branch_register ++ && SIBLING_CALL_P (peep2_next_insn (1)) + && !reg_mentioned_p (operands[0], + CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))" + [(parallel [(call (mem:QI (match_dup 1)) +@@ -12070,7 +12072,9 @@ + (unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE) + (call (mem:QI (match_dup 0)) + (match_operand 3))] +- "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (2)) ++ "!TARGET_X32 ++ && !ix86_indirect_branch_register ++ && SIBLING_CALL_P (peep2_next_insn (2)) + && !reg_mentioned_p (operands[0], + CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))" + [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE) +@@ -12092,7 +12096,7 @@ + }) + + (define_insn "*call_pop" +- [(call (mem:QI (match_operand:SI 0 "call_insn_operand" "lmBz")) ++ [(call (mem:QI (match_operand:SI 0 "call_insn_operand" "lBwBz")) + (match_operand 1)) + (set (reg:SI SP_REG) + (plus:SI (reg:SI SP_REG) +@@ -12112,7 +12116,7 @@ + [(set_attr "type" "call")]) + + (define_insn "*sibcall_pop_memory" +- [(call (mem:QI (match_operand:SI 0 "memory_operand" "m")) ++ [(call (mem:QI (match_operand:SI 0 "memory_operand" "Bs")) + (match_operand 1)) + (set (reg:SI SP_REG) + (plus:SI (reg:SI SP_REG) +@@ -12166,7 +12170,9 @@ + [(set (match_operand:W 0 "register_operand") + (match_operand:W 1 "memory_operand")) + (set (pc) (match_dup 0))] +- "!TARGET_X32 && peep2_reg_dead_p (2, operands[0])" ++ "!TARGET_X32 ++ && !ix86_indirect_branch_register ++ && peep2_reg_dead_p (2, operands[0])" + [(set (pc) (match_dup 1))]) + + ;; Call subroutine, returning value in operand 0 +@@ -12244,7 +12250,7 @@ + (call (mem:QI (match_operand:W 1 "memory_operand" "m")) + (match_operand 2))) + (unspec [(const_int 0)] UNSPEC_PEEPSIB)] +- "!TARGET_X32" ++ "!TARGET_X32 && !ix86_indirect_branch_register" + "* return ix86_output_call_insn (insn, operands[1]);" + [(set_attr "type" "callv")]) + +@@ -12254,7 +12260,9 @@ + (set (match_operand 2) + (call (mem:QI (match_dup 0)) + (match_operand 3)))] +- "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (1)) ++ "!TARGET_X32 ++ && !ix86_indirect_branch_register ++ && SIBLING_CALL_P (peep2_next_insn (1)) + && !reg_mentioned_p (operands[0], + CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))" + [(parallel [(set (match_dup 2) +@@ -12269,7 +12277,9 @@ + (set (match_operand 2) + (call (mem:QI (match_dup 0)) + (match_operand 3)))] +- "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (2)) ++ "!TARGET_X32 ++ && !ix86_indirect_branch_register ++ && SIBLING_CALL_P (peep2_next_insn (2)) + && !reg_mentioned_p (operands[0], + CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))" + [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE) +@@ -12294,7 +12304,7 @@ + + (define_insn "*call_value_pop" + [(set (match_operand 0) +- (call (mem:QI (match_operand:SI 1 "call_insn_operand" "lmBz")) ++ (call (mem:QI (match_operand:SI 1 "call_insn_operand" "lBwBz")) + (match_operand 2))) + (set (reg:SI SP_REG) + (plus:SI (reg:SI SP_REG) +diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt +index ad5916fb643..a97f84f68f2 100644 +--- a/gcc/config/i386/i386.opt ++++ b/gcc/config/i386/i386.opt +@@ -921,3 +921,7 @@ Enum(indirect_branch) String(thunk-inline) Value(indirect_branch_thunk_inline) + + EnumValue + Enum(indirect_branch) String(thunk-extern) Value(indirect_branch_thunk_extern) ++ ++mindirect-branch-register ++Target Report Var(ix86_indirect_branch_register) Init(0) ++Force indirect call and jump via register. +diff --git a/gcc/config/i386/predicates.md b/gcc/config/i386/predicates.md +index 93dda7bb0e7..d1f0a7dbf61 100644 +--- a/gcc/config/i386/predicates.md ++++ b/gcc/config/i386/predicates.md +@@ -593,7 +593,8 @@ + ;; Test for a valid operand for indirect branch. + (define_predicate "indirect_branch_operand" + (ior (match_operand 0 "register_operand") +- (and (not (match_test "TARGET_X32")) ++ (and (not (match_test "ix86_indirect_branch_register")) ++ (not (match_test "TARGET_X32")) + (match_operand 0 "memory_operand")))) + + ;; Return true if OP is a memory operands that can be used in sibcalls. +@@ -636,20 +637,22 @@ + (ior (match_test "constant_call_address_operand + (op, mode == VOIDmode ? mode : Pmode)") + (match_operand 0 "call_register_no_elim_operand") +- (ior (and (not (match_test "TARGET_X32")) +- (match_operand 0 "memory_operand")) +- (and (match_test "TARGET_X32 && Pmode == DImode") +- (match_operand 0 "GOT_memory_operand"))))) ++ (and (not (match_test "ix86_indirect_branch_register")) ++ (ior (and (not (match_test "TARGET_X32")) ++ (match_operand 0 "memory_operand")) ++ (and (match_test "TARGET_X32 && Pmode == DImode") ++ (match_operand 0 "GOT_memory_operand")))))) + + ;; Similarly, but for tail calls, in which we cannot allow memory references. + (define_special_predicate "sibcall_insn_operand" + (ior (match_test "constant_call_address_operand + (op, mode == VOIDmode ? mode : Pmode)") + (match_operand 0 "register_no_elim_operand") +- (ior (and (not (match_test "TARGET_X32")) +- (match_operand 0 "sibcall_memory_operand")) +- (and (match_test "TARGET_X32 && Pmode == DImode") +- (match_operand 0 "GOT_memory_operand"))))) ++ (and (not (match_test "ix86_indirect_branch_register")) ++ (ior (and (not (match_test "TARGET_X32")) ++ (match_operand 0 "sibcall_memory_operand")) ++ (and (match_test "TARGET_X32 && Pmode == DImode") ++ (match_operand 0 "GOT_memory_operand")))))) + + ;; Return true if OP is a 32-bit GOT symbol operand. + (define_predicate "GOT32_symbol_operand" +diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi +index 337a761015a..94374661f2d 100644 +--- a/gcc/doc/invoke.texi ++++ b/gcc/doc/invoke.texi +@@ -1170,7 +1170,7 @@ See RS/6000 and PowerPC Options. + -mavx256-split-unaligned-load -mavx256-split-unaligned-store @gol + -malign-data=@var{type} -mstack-protector-guard=@var{guard} @gol + -mmitigate-rop -mindirect-branch=@var{choice} @gol +--mfunction-return=@var{choice}} ++-mfunction-return=@var{choice} -mindirect-branch-register} + + @emph{x86 Windows Options} + @gccoptlist{-mconsole -mcygwin -mno-cygwin -mdll @gol +@@ -24253,6 +24253,10 @@ object file. You can control this behavior for a specific function by + using the function attribute @code{function_return}. + @xref{Function Attributes}. + ++@item -mindirect-branch-register ++@opindex -mindirect-branch-register ++Force indirect call and jump via register. ++ + @end table + + These @samp{-m} switches are supported in addition to the above +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c +index e365ef5698a..60d09881a99 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c +index 05a51ad9157..aac75163794 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c +index 3c0d4c39f0b..9e24a385387 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c +index 14d4ef6dd98..127b5d94523 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c +index b4836c38d6c..fcaa18d10b7 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target *-*-linux* } } */ +-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */ + + extern void bar (void); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c +index 1f06bd1af74..e4649283d10 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target *-*-linux* } } */ +-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */ + + extern void bar (void); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c +index bc6b47a636e..17c2d0faf88 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ + + void func0 (void); + void func1 (void); +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c +index 2257be3affa..9194ccf3cbc 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c +index e9cfdc5879e..e51f261a612 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c +index f938db050f7..4aeec1833cd 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c +index 4e58599692a..ac0e5999f63 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c +index b8d50249d8b..573cf1ef09e 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c +index 455adabfe0e..b2b37fc6e2e 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c +index 4595b841ec0..4a43e199931 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */ + + void func0 (void); + void func1 (void); +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c +index 5e3e118e9bd..ac84ab623fa 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target { ! x32 } } } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ + + void (*dispatch) (char *); + char buf[10]; +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c +index 2801aa4192e..ce655e8be1c 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target { ! x32 } } } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ + + void (*dispatch) (char *); + char buf[10]; +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c +index 70b4fb36eea..d34485a0010 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */ + + void bar (char *); + char buf[10]; +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c +index 3baf03ee77c..0e19830de4d 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */ + + void bar (char *); + char buf[10]; +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c +index edeb264218c..579441f250e 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c +index 1d00413a76a..c92e6f2b02d 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c +index 06ebf1c9063..d9964c25bbd 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c +index 1c8f9446636..d4dca4dc5fe 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c +index 21740ac5b7f..5c07e02df6a 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target *-*-linux* } } */ +-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */ + + extern void bar (void); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c +index a77c1f470b8..3eb440693a0 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target *-*-linux* } } */ +-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */ + + extern void bar (void); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c +index 86e9fd1f1e4..aece9383697 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ + + void func0 (void); + void func1 (void); +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c +index 3ecde878867..3aba5e8c81f 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c +index df32a19a2b5..0f0181d6672 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c +index 9540996de01..2eef6f35a75 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c +index f3db6e2441f..e825a10f14c 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ + + typedef void (*dispatch_t)(long offset); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c +index 0f687c3b027..c6d77e10352 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target *-*-linux* } } */ +-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */ + + extern void bar (void); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c +index b27c6fc96a2..6454827b780 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c +@@ -1,5 +1,5 @@ + /* { dg-do compile { target *-*-linux* } } */ +-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */ + + extern void bar (void); + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c +index 764a375fc37..c67066cf197 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ + + void func0 (void); + void func1 (void); +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c +new file mode 100644 +index 00000000000..7d396a31953 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c +@@ -0,0 +1,22 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk -mindirect-branch-register -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "mov\[ \t\](%eax|%rax), \\((%esp|%rsp)\\)" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */ ++/* { dg-final { scan-assembler-not "__x86_indirect_thunk\n" } } */ ++/* { dg-final { scan-assembler-not "__x86_indirect_thunk_bnd\n" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c +new file mode 100644 +index 00000000000..e7e616bb271 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk-inline -mindirect-branch-register -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "mov\[ \t\](%eax|%rax), \\((%esp|%rsp)\\)" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */ ++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c +new file mode 100644 +index 00000000000..5320e923be2 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk-extern -mindirect-branch-register -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ ++/* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */ ++/* { dg-final { scan-assembler-not {\t(pause|pause|nop)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c +index 3a6727b5c54..e6fea84a4d9 100644 +--- a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=thunk-inline -mindirect-branch=thunk -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk-inline -mindirect-branch=thunk -fno-pic" } */ + + extern void (*bar) (void); + +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c +index b8f68188313..e239ec4542f 100644 +--- a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=thunk-extern -mindirect-branch=thunk -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk-extern -mindirect-branch=thunk -fno-pic" } */ + + extern void (*bar) (void); + +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c +index 01b0a02f80b..fa3181303c9 100644 +--- a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ + + extern void (*bar) (void); + +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c +index 4b497b5f8af..fd5b41fdd3f 100644 +--- a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ + + extern void (*bar) (void); + extern int foo (void) __attribute__ ((function_return("thunk"))); +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c +index 4ae4c44a3fd..d606373ead1 100644 +--- a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ + + extern void (*bar) (void); + +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c +index 5b5bc765a7e..75e45e226b8 100644 +--- a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=keep -fno-pic" } */ + + extern void (*bar) (void); + +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c +index fa24a1f7365..d1db41cc128 100644 +--- a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c +@@ -1,5 +1,5 @@ + /* { dg-do compile } */ +-/* { dg-options "-O2 -mfunction-return=thunk -mindirect-branch=thunk -fno-pic" } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk -mindirect-branch=thunk -fno-pic" } */ + + extern void (*bar) (void); + +-- +2.16.3 + diff --git a/main/gcc6/0007-x86-Add-V-register-operand-modifier.patch b/main/gcc6/0007-x86-Add-V-register-operand-modifier.patch new file mode 100644 index 000000000..f75b2133c --- /dev/null +++ b/main/gcc6/0007-x86-Add-V-register-operand-modifier.patch @@ -0,0 +1,134 @@ +From 92308185917678406afee3c165ea5e71b53b3cc1 Mon Sep 17 00:00:00 2001 +From: "H.J. Lu" +Date: Sat, 6 Jan 2018 22:29:56 -0800 +Subject: [PATCH 07/13] x86: Add 'V' register operand modifier + +Add 'V', a special modifier which prints the name of the full integer +register without '%'. For + +extern void (*func_p) (void); + +void +foo (void) +{ + asm ("call __x86_indirect_thunk_%V0" : : "a" (func_p)); +} + +it generates: + +foo: + movq func_p(%rip), %rax + call __x86_indirect_thunk_rax + ret + +gcc/ + + Backport from mainline + 2018-01-14 H.J. Lu + + * config/i386/i386.c (print_reg): Print the name of the full + integer register without '%'. + (ix86_print_operand): Handle 'V'. + * doc/extend.texi: Document 'V' modifier. + +gcc/testsuite/ + + Backport from mainline + 2018-01-14 H.J. Lu + + * gcc.target/i386/indirect-thunk-register-4.c: New test. +--- + gcc/config/i386/i386.c | 13 ++++++++++++- + gcc/doc/extend.texi | 3 +++ + gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c | 13 +++++++++++++ + 3 files changed, 28 insertions(+), 1 deletion(-) + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c + +diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c +index 34e26a3a3c7..eeca7e5e490 100644 +--- a/gcc/config/i386/i386.c ++++ b/gcc/config/i386/i386.c +@@ -16869,6 +16869,7 @@ put_condition_code (enum rtx_code code, machine_mode mode, bool reverse, + If CODE is 'h', pretend the reg is the 'high' byte register. + If CODE is 'y', print "st(0)" instead of "st", if the reg is stack op. + If CODE is 'd', duplicate the operand for AVX instruction. ++ If CODE is 'V', print naked full integer register name without %. + */ + + void +@@ -16879,7 +16880,7 @@ print_reg (rtx x, int code, FILE *file) + unsigned int regno; + bool duplicated; + +- if (ASSEMBLER_DIALECT == ASM_ATT) ++ if (ASSEMBLER_DIALECT == ASM_ATT && code != 'V') + putc ('%', file); + + if (x == pc_rtx) +@@ -16922,6 +16923,14 @@ print_reg (rtx x, int code, FILE *file) + && regno != FPSR_REG + && regno != FPCR_REG); + ++ if (code == 'V') ++ { ++ if (GENERAL_REGNO_P (regno)) ++ msize = GET_MODE_SIZE (word_mode); ++ else ++ error ("'V' modifier on non-integer register"); ++ } ++ + duplicated = code == 'd' && TARGET_AVX; + + switch (msize) +@@ -17035,6 +17044,7 @@ print_reg (rtx x, int code, FILE *file) + & -- print some in-use local-dynamic symbol name. + H -- print a memory address offset by 8; used for sse high-parts + Y -- print condition for XOP pcom* instruction. ++ V -- print naked full integer register name without %. + + -- print a branch hint as 'cs' or 'ds' prefix + ; -- print a semicolon (after prefixes due to bug in older gas). + ~ -- print "i" if TARGET_AVX2, "f" otherwise. +@@ -17259,6 +17269,7 @@ ix86_print_operand (FILE *file, rtx x, int code) + case 'X': + case 'P': + case 'p': ++ case 'V': + break; + + case 's': +diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi +index 2cb6bd1ef3e..76ba1d4f913 100644 +--- a/gcc/doc/extend.texi ++++ b/gcc/doc/extend.texi +@@ -8511,6 +8511,9 @@ The table below shows the list of supported modifiers and their effects. + @tab @code{2} + @end multitable + ++@code{V} is a special modifier which prints the name of the full integer ++register without @code{%}. ++ + @anchor{x86floatingpointasmoperands} + @subsubsection x86 Floating-Point @code{asm} Operands + +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c +new file mode 100644 +index 00000000000..f0cd9b75be8 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c +@@ -0,0 +1,13 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=keep -fno-pic" } */ ++ ++extern void (*func_p) (void); ++ ++void ++foo (void) ++{ ++ asm("call __x86_indirect_thunk_%V0" : : "a" (func_p)); ++} ++ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_eax" { target ia32 } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_rax" { target { ! ia32 } } } } */ +-- +2.16.3 + diff --git a/main/gcc6/0008-x86-Disallow-mindirect-branch-mfunction-return-with-.patch b/main/gcc6/0008-x86-Disallow-mindirect-branch-mfunction-return-with-.patch new file mode 100644 index 000000000..73a58bf86 --- /dev/null +++ b/main/gcc6/0008-x86-Disallow-mindirect-branch-mfunction-return-with-.patch @@ -0,0 +1,299 @@ +From 087b12213a5b4b8654c70320c671bb05c1b1b012 Mon Sep 17 00:00:00 2001 +From: "H.J. Lu" +Date: Sat, 13 Jan 2018 18:01:54 -0800 +Subject: [PATCH 08/13] x86: Disallow -mindirect-branch=/-mfunction-return= + with -mcmodel=large + +Since the thunk function may not be reachable in large code model, +-mcmodel=large is incompatible with -mindirect-branch=thunk, +-mindirect-branch=thunk-extern, -mfunction-return=thunk and +-mfunction-return=thunk-extern. Issue an error when they are used with +-mcmodel=large. + +gcc/ + + Backport from mainline + 2018-01-14 H.J. Lu + + * config/i386/i386.c (ix86_set_indirect_branch_type): Disallow + -mcmodel=large with -mindirect-branch=thunk, + -mindirect-branch=thunk-extern, -mfunction-return=thunk and + -mfunction-return=thunk-extern. + * doc/invoke.texi: Document -mcmodel=large is incompatible with + -mindirect-branch=thunk, -mindirect-branch=thunk-extern, + -mfunction-return=thunk and -mfunction-return=thunk-extern. + +gcc/testsuite/ + + Backport from mainline + 2018-01-14 H.J. Lu + + * gcc.target/i386/indirect-thunk-10.c: New test. + * gcc.target/i386/indirect-thunk-8.c: Likewise. + * gcc.target/i386/indirect-thunk-9.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-10.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-11.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-9.c: Likewise. + * gcc.target/i386/ret-thunk-17.c: Likewise. + * gcc.target/i386/ret-thunk-18.c: Likewise. + * gcc.target/i386/ret-thunk-19.c: Likewise. + * gcc.target/i386/ret-thunk-20.c: Likewise. + * gcc.target/i386/ret-thunk-21.c: Likewise. +--- + gcc/config/i386/i386.c | 26 ++++++++++++++++++++++ + gcc/doc/invoke.texi | 11 +++++++++ + gcc/testsuite/gcc.target/i386/indirect-thunk-10.c | 7 ++++++ + gcc/testsuite/gcc.target/i386/indirect-thunk-8.c | 7 ++++++ + gcc/testsuite/gcc.target/i386/indirect-thunk-9.c | 7 ++++++ + .../gcc.target/i386/indirect-thunk-attr-10.c | 9 ++++++++ + .../gcc.target/i386/indirect-thunk-attr-11.c | 9 ++++++++ + .../gcc.target/i386/indirect-thunk-attr-9.c | 9 ++++++++ + gcc/testsuite/gcc.target/i386/ret-thunk-17.c | 7 ++++++ + gcc/testsuite/gcc.target/i386/ret-thunk-18.c | 8 +++++++ + gcc/testsuite/gcc.target/i386/ret-thunk-19.c | 8 +++++++ + gcc/testsuite/gcc.target/i386/ret-thunk-20.c | 9 ++++++++ + gcc/testsuite/gcc.target/i386/ret-thunk-21.c | 9 ++++++++ + 13 files changed, 126 insertions(+) + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-10.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-8.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-9.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-10.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-11.c + create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-9.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-17.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-18.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-19.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-20.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-21.c + +diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c +index eeca7e5e490..9c038bee000 100644 +--- a/gcc/config/i386/i386.c ++++ b/gcc/config/i386/i386.c +@@ -6389,6 +6389,19 @@ ix86_set_indirect_branch_type (tree fndecl) + } + else + cfun->machine->indirect_branch_type = ix86_indirect_branch; ++ ++ /* -mcmodel=large is not compatible with -mindirect-branch=thunk ++ nor -mindirect-branch=thunk-extern. */ ++ if ((ix86_cmodel == CM_LARGE || ix86_cmodel == CM_LARGE_PIC) ++ && ((cfun->machine->indirect_branch_type ++ == indirect_branch_thunk_extern) ++ || (cfun->machine->indirect_branch_type ++ == indirect_branch_thunk))) ++ error ("%<-mindirect-branch=%s%> and %<-mcmodel=large%> are not " ++ "compatible", ++ ((cfun->machine->indirect_branch_type ++ == indirect_branch_thunk_extern) ++ ? "thunk-extern" : "thunk")); + } + + if (cfun->machine->function_return_type == indirect_branch_unset) +@@ -6414,6 +6427,19 @@ ix86_set_indirect_branch_type (tree fndecl) + } + else + cfun->machine->function_return_type = ix86_function_return; ++ ++ /* -mcmodel=large is not compatible with -mfunction-return=thunk ++ nor -mfunction-return=thunk-extern. */ ++ if ((ix86_cmodel == CM_LARGE || ix86_cmodel == CM_LARGE_PIC) ++ && ((cfun->machine->function_return_type ++ == indirect_branch_thunk_extern) ++ || (cfun->machine->function_return_type ++ == indirect_branch_thunk))) ++ error ("%<-mfunction-return=%s%> and %<-mcmodel=large%> are not " ++ "compatible", ++ ((cfun->machine->function_return_type ++ == indirect_branch_thunk_extern) ++ ? "thunk-extern" : "thunk")); + } + } + +diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi +index 94374661f2d..1dee495c86b 100644 +--- a/gcc/doc/invoke.texi ++++ b/gcc/doc/invoke.texi +@@ -24242,6 +24242,11 @@ to external call and return thunk provided in a separate object file. + You can control this behavior for a specific function by using the + function attribute @code{indirect_branch}. @xref{Function Attributes}. + ++Note that @option{-mcmodel=large} is incompatible with ++@option{-mindirect-branch=thunk} nor ++@option{-mindirect-branch=thunk-extern} since the thunk function may ++not be reachable in large code model. ++ + @item -mfunction-return=@var{choice} + @opindex -mfunction-return + Convert function return with @var{choice}. The default is @samp{keep}, +@@ -24253,6 +24258,12 @@ object file. You can control this behavior for a specific function by + using the function attribute @code{function_return}. + @xref{Function Attributes}. + ++Note that @option{-mcmodel=large} is incompatible with ++@option{-mfunction-return=thunk} nor ++@option{-mfunction-return=thunk-extern} since the thunk function may ++not be reachable in large code model. ++ ++ + @item -mindirect-branch-register + @opindex -mindirect-branch-register + Force indirect call and jump via register. +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-10.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-10.c +new file mode 100644 +index 00000000000..a0674bd2363 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-10.c +@@ -0,0 +1,7 @@ ++/* { dg-do compile { target { lp64 } } } */ ++/* { dg-options "-O2 -mindirect-branch=thunk-inline -mfunction-return=keep -mcmodel=large" } */ ++ ++void ++bar (void) ++{ ++} +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-8.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-8.c +new file mode 100644 +index 00000000000..7a80a8986e8 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-8.c +@@ -0,0 +1,7 @@ ++/* { dg-do compile { target { lp64 } } } */ ++/* { dg-options "-O2 -mindirect-branch=thunk -mfunction-return=keep -mcmodel=large" } */ ++ ++void ++bar (void) ++{ /* { dg-error "'-mindirect-branch=thunk' and '-mcmodel=large' are not compatible" } */ ++} +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-9.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-9.c +new file mode 100644 +index 00000000000..d4d45c5114d +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-9.c +@@ -0,0 +1,7 @@ ++/* { dg-do compile { target { lp64 } } } */ ++/* { dg-options "-O2 -mindirect-branch=thunk-extern -mfunction-return=keep -mcmodel=large" } */ ++ ++void ++bar (void) ++{ /* { dg-error "'-mindirect-branch=thunk-extern' and '-mcmodel=large' are not compatible" } */ ++} +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-10.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-10.c +new file mode 100644 +index 00000000000..3a2aeaddbc5 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-10.c +@@ -0,0 +1,9 @@ ++/* { dg-do compile { target { lp64 } } } */ ++/* { dg-options "-O2 -mindirect-branch=keep -mfunction-return=keep -mcmodel=large" } */ ++/* { dg-additional-options "-fPIC" { target fpic } } */ ++ ++__attribute__ ((indirect_branch("thunk-extern"))) ++void ++bar (void) ++{ /* { dg-error "'-mindirect-branch=thunk-extern' and '-mcmodel=large' are not compatible" } */ ++} +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-11.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-11.c +new file mode 100644 +index 00000000000..8e52f032b6c +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-11.c +@@ -0,0 +1,9 @@ ++/* { dg-do compile { target { lp64 } } } */ ++/* { dg-options "-O2 -mindirect-branch=keep -mfunction-return=keep -mcmodel=large" } */ ++/* { dg-additional-options "-fPIC" { target fpic } } */ ++ ++__attribute__ ((indirect_branch("thunk-inline"))) ++void ++bar (void) ++{ ++} +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-9.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-9.c +new file mode 100644 +index 00000000000..bdaa4f6911b +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-9.c +@@ -0,0 +1,9 @@ ++/* { dg-do compile { target { lp64 } } } */ ++/* { dg-options "-O2 -mindirect-branch=keep -mfunction-return=keep -mcmodel=large" } */ ++/* { dg-additional-options "-fPIC" { target fpic } } */ ++ ++__attribute__ ((indirect_branch("thunk"))) ++void ++bar (void) ++{ /* { dg-error "'-mindirect-branch=thunk' and '-mcmodel=large' are not compatible" } */ ++} +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-17.c b/gcc/testsuite/gcc.target/i386/ret-thunk-17.c +new file mode 100644 +index 00000000000..0605e2c6542 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-17.c +@@ -0,0 +1,7 @@ ++/* { dg-do compile { target { lp64 } } } */ ++/* { dg-options "-O2 -mfunction-return=thunk -mindirect-branch=keep -mcmodel=large" } */ ++ ++void ++bar (void) ++{ /* { dg-error "'-mfunction-return=thunk' and '-mcmodel=large' are not compatible" } */ ++} +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-18.c b/gcc/testsuite/gcc.target/i386/ret-thunk-18.c +new file mode 100644 +index 00000000000..307019dc242 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-18.c +@@ -0,0 +1,8 @@ ++/* { dg-do compile { target { lp64 } } } */ ++/* { dg-options "-O2 -mfunction-return=thunk-extern -mindirect-branch=keep -mcmodel=large" } */ ++/* { dg-additional-options "-fPIC" { target fpic } } */ ++ ++void ++bar (void) ++{ /* { dg-error "'-mfunction-return=thunk-extern' and '-mcmodel=large' are not compatible" } */ ++} +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-19.c b/gcc/testsuite/gcc.target/i386/ret-thunk-19.c +new file mode 100644 +index 00000000000..772617f4010 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-19.c +@@ -0,0 +1,8 @@ ++/* { dg-do compile { target { lp64 } } } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -mcmodel=large" } */ ++ ++__attribute__ ((function_return("thunk"))) ++void ++bar (void) ++{ /* { dg-error "'-mfunction-return=thunk' and '-mcmodel=large' are not compatible" } */ ++} +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-20.c b/gcc/testsuite/gcc.target/i386/ret-thunk-20.c +new file mode 100644 +index 00000000000..1e9f9bd5a66 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-20.c +@@ -0,0 +1,9 @@ ++/* { dg-do compile { target { lp64 } } } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -mcmodel=large" } */ ++/* { dg-additional-options "-fPIC" { target fpic } } */ ++ ++__attribute__ ((function_return("thunk-extern"))) ++void ++bar (void) ++{ /* { dg-error "'-mfunction-return=thunk-extern' and '-mcmodel=large' are not compatible" } */ ++} +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-21.c b/gcc/testsuite/gcc.target/i386/ret-thunk-21.c +new file mode 100644 +index 00000000000..eea07f7abe1 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-21.c +@@ -0,0 +1,9 @@ ++/* { dg-do compile { target { lp64 } } } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -mcmodel=large" } */ ++/* { dg-additional-options "-fPIC" { target fpic } } */ ++ ++__attribute__ ((function_return("thunk-inline"))) ++void ++bar (void) ++{ ++} +-- +2.16.3 + diff --git a/main/gcc6/0009-Use-INVALID_REGNUM-in-indirect-thunk-processing.patch b/main/gcc6/0009-Use-INVALID_REGNUM-in-indirect-thunk-processing.patch new file mode 100644 index 000000000..f33946c15 --- /dev/null +++ b/main/gcc6/0009-Use-INVALID_REGNUM-in-indirect-thunk-processing.patch @@ -0,0 +1,121 @@ +From 07857bd9fb9ccab67a932ad9df3e53f3f0c2c617 Mon Sep 17 00:00:00 2001 +From: uros +Date: Thu, 25 Jan 2018 19:39:01 +0000 +Subject: [PATCH 09/13] Use INVALID_REGNUM in indirect thunk processing + + Backport from mainline + 2018-01-17 Uros Bizjak + + * config/i386/i386.c (indirect_thunk_name): Declare regno + as unsigned int. Compare regno with INVALID_REGNUM. + (output_indirect_thunk): Ditto. + (output_indirect_thunk_function): Ditto. + (ix86_code_end): Declare regno as unsigned int. Use INVALID_REGNUM + in the call to output_indirect_thunk_function. + +git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-7-branch@257067 138bc75d-0d04-0410-961f-82ee72b054a4 +--- + gcc/config/i386/i386.c | 30 +++++++++++++++--------------- + 1 file changed, 15 insertions(+), 15 deletions(-) + +diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c +index 9c038bee000..40126579c22 100644 +--- a/gcc/config/i386/i386.c ++++ b/gcc/config/i386/i386.c +@@ -11087,16 +11087,16 @@ static int indirect_thunks_bnd_used; + /* Fills in the label name that should be used for the indirect thunk. */ + + static void +-indirect_thunk_name (char name[32], int regno, bool need_bnd_p, +- bool ret_p) ++indirect_thunk_name (char name[32], unsigned int regno, ++ bool need_bnd_p, bool ret_p) + { +- if (regno >= 0 && ret_p) ++ if (regno != INVALID_REGNUM && ret_p) + gcc_unreachable (); + + if (USE_HIDDEN_LINKONCE) + { + const char *bnd = need_bnd_p ? "_bnd" : ""; +- if (regno >= 0) ++ if (regno != INVALID_REGNUM) + { + const char *reg_prefix; + if (LEGACY_INT_REGNO_P (regno)) +@@ -11114,7 +11114,7 @@ indirect_thunk_name (char name[32], int regno, bool need_bnd_p, + } + else + { +- if (regno >= 0) ++ if (regno != INVALID_REGNUM) + { + if (need_bnd_p) + ASM_GENERATE_INTERNAL_LABEL (name, "LITBR", regno); +@@ -11166,7 +11166,7 @@ indirect_thunk_name (char name[32], int regno, bool need_bnd_p, + */ + + static void +-output_indirect_thunk (bool need_bnd_p, int regno) ++output_indirect_thunk (bool need_bnd_p, unsigned int regno) + { + char indirectlabel1[32]; + char indirectlabel2[32]; +@@ -11196,7 +11196,7 @@ output_indirect_thunk (bool need_bnd_p, int regno) + + ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2); + +- if (regno >= 0) ++ if (regno != INVALID_REGNUM) + { + /* MOV. */ + rtx xops[2]; +@@ -11220,12 +11220,12 @@ output_indirect_thunk (bool need_bnd_p, int regno) + } + + /* Output a funtion with a call and return thunk for indirect branch. +- If BND_P is true, the BND prefix is needed. If REGNO != -1, the +- function address is in REGNO. Otherwise, the function address is ++ If BND_P is true, the BND prefix is needed. If REGNO != INVALID_REGNUM, ++ the function address is in REGNO. Otherwise, the function address is + on the top of stack. */ + + static void +-output_indirect_thunk_function (bool need_bnd_p, int regno) ++output_indirect_thunk_function (bool need_bnd_p, unsigned int regno) + { + char name[32]; + tree decl; +@@ -11274,7 +11274,7 @@ output_indirect_thunk_function (bool need_bnd_p, int regno) + ASM_OUTPUT_LABEL (asm_out_file, name); + } + +- if (regno < 0) ++ if (regno == INVALID_REGNUM) + { + /* Create alias for __x86.return_thunk/__x86.return_thunk_bnd. */ + char alias[32]; +@@ -11348,16 +11348,16 @@ static void + ix86_code_end (void) + { + rtx xops[2]; +- int regno; ++ unsigned int regno; + + if (indirect_thunk_needed) +- output_indirect_thunk_function (false, -1); ++ output_indirect_thunk_function (false, INVALID_REGNUM); + if (indirect_thunk_bnd_needed) +- output_indirect_thunk_function (true, -1); ++ output_indirect_thunk_function (true, INVALID_REGNUM); + + for (regno = FIRST_REX_INT_REG; regno <= LAST_REX_INT_REG; regno++) + { +- int i = regno - FIRST_REX_INT_REG + LAST_INT_REG + 1; ++ unsigned int i = regno - FIRST_REX_INT_REG + LAST_INT_REG + 1; + if ((indirect_thunks_used & (1 << i))) + output_indirect_thunk_function (false, regno); + +-- +2.16.3 + diff --git a/main/gcc6/0010-i386-Pass-INVALID_REGNUM-as-invalid-register-number.patch b/main/gcc6/0010-i386-Pass-INVALID_REGNUM-as-invalid-register-number.patch new file mode 100644 index 000000000..08593c2b3 --- /dev/null +++ b/main/gcc6/0010-i386-Pass-INVALID_REGNUM-as-invalid-register-number.patch @@ -0,0 +1,41 @@ +From 3815e98f0f46b6c4c41e6810bad987bd083691aa Mon Sep 17 00:00:00 2001 +From: hjl +Date: Fri, 2 Feb 2018 16:47:02 +0000 +Subject: [PATCH 10/13] i386: Pass INVALID_REGNUM as invalid register number + + Backport from mainline + * config/i386/i386.c (ix86_output_function_return): Pass + INVALID_REGNUM, instead of -1, as invalid register number to + indirect_thunk_name and output_indirect_thunk. + +git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-7-branch@257341 138bc75d-0d04-0410-961f-82ee72b054a4 +--- + gcc/config/i386/i386.c | 5 +++-- + 1 file changed, 3 insertions(+), 2 deletions(-) + +diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c +index 40126579c22..66502ee6da6 100644 +--- a/gcc/config/i386/i386.c ++++ b/gcc/config/i386/i386.c +@@ -28056,7 +28056,8 @@ ix86_output_function_return (bool long_p) + { + bool need_thunk = (cfun->machine->function_return_type + == indirect_branch_thunk); +- indirect_thunk_name (thunk_name, -1, need_bnd_p, true); ++ indirect_thunk_name (thunk_name, INVALID_REGNUM, need_bnd_p, ++ true); + if (need_bnd_p) + { + indirect_thunk_bnd_needed |= need_thunk; +@@ -28069,7 +28070,7 @@ ix86_output_function_return (bool long_p) + } + } + else +- output_indirect_thunk (need_bnd_p, -1); ++ output_indirect_thunk (need_bnd_p, INVALID_REGNUM); + + return ""; + } +-- +2.16.3 + diff --git a/main/gcc6/0011-i386-Update-mfunction-return-for-return-with-pop.patch b/main/gcc6/0011-i386-Update-mfunction-return-for-return-with-pop.patch new file mode 100644 index 000000000..3d528395b --- /dev/null +++ b/main/gcc6/0011-i386-Update-mfunction-return-for-return-with-pop.patch @@ -0,0 +1,456 @@ +From 771535dec733e4b85924f00a3a94c29683d614e5 Mon Sep 17 00:00:00 2001 +From: hjl +Date: Mon, 26 Feb 2018 15:29:30 +0000 +Subject: [PATCH 11/13] i386: Update -mfunction-return= for return with pop + +When -mfunction-return= is used, simple_return_pop_internal should pop +return address into ECX register, adjust stack by bytes to pop from stack +and jump to the return thunk via ECX register. + +Revision 257992 removed the bool argument from ix86_output_indirect_jmp. +Update comments to reflect it. + +Tested on i686 and x86-64. + +gcc/ + + Backport from mainline + 2018-02-26 H.J. Lu + + * config/i386/i386.c (ix86_output_indirect_jmp): Update comments. + + 2018-02-26 H.J. Lu + + PR target/84530 + * config/i386/i386-protos.h (ix86_output_indirect_jmp): Remove + the bool argument. + (ix86_output_indirect_function_return): New prototype. + (ix86_split_simple_return_pop_internal): Likewise. + * config/i386/i386.c (indirect_return_via_cx): New. + (indirect_return_via_cx_bnd): Likewise. + (indirect_thunk_name): Handle return va CX_REG. + (output_indirect_thunk_function): Create alias for + __x86_return_thunk_[re]cx and __x86_return_thunk_[re]cx_bnd. + (ix86_output_indirect_jmp): Remove the bool argument. + (ix86_output_indirect_function_return): New function. + (ix86_split_simple_return_pop_internal): Likewise. + * config/i386/i386.md (*indirect_jump): Don't pass false + to ix86_output_indirect_jmp. + (*tablejump_1): Likewise. + (simple_return_pop_internal): Change it to define_insn_and_split. + Call ix86_split_simple_return_pop_internal to split it for + -mfunction-return=. + (simple_return_indirect_internal): Call + ix86_output_indirect_function_return instead of + ix86_output_indirect_jmp. + +gcc/testsuite/ + + Backport from mainline + 2018-02-26 H.J. Lu + + PR target/84530 + * gcc.target/i386/ret-thunk-22.c: New test. + * gcc.target/i386/ret-thunk-23.c: Likewise. + * gcc.target/i386/ret-thunk-24.c: Likewise. + * gcc.target/i386/ret-thunk-25.c: Likewise. + * gcc.target/i386/ret-thunk-26.c: Likewise. +--- + gcc/config/i386/i386-protos.h | 4 +- + gcc/config/i386/i386.c | 127 +++++++++++++++++++++++---- + gcc/config/i386/i386.md | 11 ++- + gcc/testsuite/gcc.target/i386/ret-thunk-22.c | 15 ++++ + gcc/testsuite/gcc.target/i386/ret-thunk-23.c | 15 ++++ + gcc/testsuite/gcc.target/i386/ret-thunk-24.c | 15 ++++ + gcc/testsuite/gcc.target/i386/ret-thunk-25.c | 15 ++++ + gcc/testsuite/gcc.target/i386/ret-thunk-26.c | 40 +++++++++ + 8 files changed, 222 insertions(+), 20 deletions(-) + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-22.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-23.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-24.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-25.c + create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-26.c + +diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h +index 620d70ef9f6..c7a0ccb58d3 100644 +--- a/gcc/config/i386/i386-protos.h ++++ b/gcc/config/i386/i386-protos.h +@@ -311,8 +311,10 @@ extern enum attr_cpu ix86_schedule; + #endif + + extern const char * ix86_output_call_insn (rtx_insn *insn, rtx call_op); +-extern const char * ix86_output_indirect_jmp (rtx call_op, bool ret_p); ++extern const char * ix86_output_indirect_jmp (rtx call_op); + extern const char * ix86_output_function_return (bool long_p); ++extern const char * ix86_output_indirect_function_return (rtx ret_op); ++extern void ix86_split_simple_return_pop_internal (rtx); + extern bool ix86_operands_ok_for_move_multiple (rtx *operands, bool load, + enum machine_mode mode); + +diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c +index 66502ee6da6..21c3c18bd3c 100644 +--- a/gcc/config/i386/i386.c ++++ b/gcc/config/i386/i386.c +@@ -11080,6 +11080,12 @@ static int indirect_thunks_used; + by call and return thunks functions with the BND prefix. */ + static int indirect_thunks_bnd_used; + ++/* True if return thunk function via CX is needed. */ ++static bool indirect_return_via_cx; ++/* True if return thunk function via CX with the BND prefix is ++ needed. */ ++static bool indirect_return_via_cx_bnd; ++ + #ifndef INDIRECT_LABEL + # define INDIRECT_LABEL "LIND" + #endif +@@ -11090,12 +11096,13 @@ static void + indirect_thunk_name (char name[32], unsigned int regno, + bool need_bnd_p, bool ret_p) + { +- if (regno != INVALID_REGNUM && ret_p) ++ if (regno != INVALID_REGNUM && regno != CX_REG && ret_p) + gcc_unreachable (); + + if (USE_HIDDEN_LINKONCE) + { + const char *bnd = need_bnd_p ? "_bnd" : ""; ++ const char *ret = ret_p ? "return" : "indirect"; + if (regno != INVALID_REGNUM) + { + const char *reg_prefix; +@@ -11103,14 +11110,11 @@ indirect_thunk_name (char name[32], unsigned int regno, + reg_prefix = TARGET_64BIT ? "r" : "e"; + else + reg_prefix = ""; +- sprintf (name, "__x86_indirect_thunk%s_%s%s", +- bnd, reg_prefix, reg_names[regno]); ++ sprintf (name, "__x86_%s_thunk%s_%s%s", ++ ret, bnd, reg_prefix, reg_names[regno]); + } + else +- { +- const char *ret = ret_p ? "return" : "indirect"; +- sprintf (name, "__x86_%s_thunk%s", ret, bnd); +- } ++ sprintf (name, "__x86_%s_thunk%s", ret, bnd); + } + else + { +@@ -11274,9 +11278,23 @@ output_indirect_thunk_function (bool need_bnd_p, unsigned int regno) + ASM_OUTPUT_LABEL (asm_out_file, name); + } + ++ /* Create alias for __x86_return_thunk/__x86_return_thunk_bnd or ++ __x86_return_thunk_ecx/__x86_return_thunk_ecx_bnd. */ ++ bool need_alias; + if (regno == INVALID_REGNUM) ++ need_alias = true; ++ else if (regno == CX_REG) ++ { ++ if (need_bnd_p) ++ need_alias = indirect_return_via_cx_bnd; ++ else ++ need_alias = indirect_return_via_cx; ++ } ++ else ++ need_alias = false; ++ ++ if (need_alias) + { +- /* Create alias for __x86.return_thunk/__x86.return_thunk_bnd. */ + char alias[32]; + + indirect_thunk_name (alias, regno, need_bnd_p, true); +@@ -28019,18 +28037,17 @@ ix86_output_indirect_branch (rtx call_op, const char *xasm, + else + ix86_output_indirect_branch_via_push (call_op, xasm, sibcall_p); + } +-/* Output indirect jump. CALL_OP is the jump target. Jump is a +- function return if RET_P is true. */ ++ ++/* Output indirect jump. CALL_OP is the jump target. */ + + const char * +-ix86_output_indirect_jmp (rtx call_op, bool ret_p) ++ix86_output_indirect_jmp (rtx call_op) + { + if (cfun->machine->indirect_branch_type != indirect_branch_keep) + { +- /* We can't have red-zone if this isn't a function return since +- "call" in the indirect thunk pushes the return address onto +- stack, destroying red-zone. */ +- if (!ret_p && ix86_red_zone_size != 0) ++ /* We can't have red-zone since "call" in the indirect thunk ++ pushes the return address onto stack, destroying red-zone. */ ++ if (ix86_red_zone_size != 0) + gcc_unreachable (); + + ix86_output_indirect_branch (call_op, "%0", true); +@@ -28081,6 +28098,86 @@ ix86_output_function_return (bool long_p) + return "rep%; ret"; + } + ++/* Output indirect function return. RET_OP is the function return ++ target. */ ++ ++const char * ++ix86_output_indirect_function_return (rtx ret_op) ++{ ++ if (cfun->machine->function_return_type != indirect_branch_keep) ++ { ++ char thunk_name[32]; ++ bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn); ++ unsigned int regno = REGNO (ret_op); ++ gcc_assert (regno == CX_REG); ++ ++ if (cfun->machine->function_return_type ++ != indirect_branch_thunk_inline) ++ { ++ bool need_thunk = (cfun->machine->function_return_type ++ == indirect_branch_thunk); ++ indirect_thunk_name (thunk_name, regno, need_bnd_p, true); ++ if (need_bnd_p) ++ { ++ if (need_thunk) ++ { ++ indirect_return_via_cx_bnd = true; ++ indirect_thunks_bnd_used |= 1 << CX_REG; ++ } ++ fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name); ++ } ++ else ++ { ++ if (need_thunk) ++ { ++ indirect_return_via_cx = true; ++ indirect_thunks_used |= 1 << CX_REG; ++ } ++ fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name); ++ } ++ } ++ else ++ output_indirect_thunk (need_bnd_p, regno); ++ ++ return ""; ++ } ++ else ++ return "%!jmp\t%A0"; ++} ++ ++/* Split simple return with popping POPC bytes from stack to indirect ++ branch with stack adjustment . */ ++ ++void ++ix86_split_simple_return_pop_internal (rtx popc) ++{ ++ struct machine_function *m = cfun->machine; ++ rtx ecx = gen_rtx_REG (SImode, CX_REG); ++ rtx_insn *insn; ++ ++ /* There is no "pascal" calling convention in any 64bit ABI. */ ++ gcc_assert (!TARGET_64BIT); ++ ++ insn = emit_insn (gen_pop (ecx)); ++ m->fs.cfa_offset -= UNITS_PER_WORD; ++ m->fs.sp_offset -= UNITS_PER_WORD; ++ ++ rtx x = plus_constant (Pmode, stack_pointer_rtx, UNITS_PER_WORD); ++ x = gen_rtx_SET (stack_pointer_rtx, x); ++ add_reg_note (insn, REG_CFA_ADJUST_CFA, x); ++ add_reg_note (insn, REG_CFA_REGISTER, gen_rtx_SET (ecx, pc_rtx)); ++ RTX_FRAME_RELATED_P (insn) = 1; ++ ++ x = gen_rtx_PLUS (Pmode, stack_pointer_rtx, popc); ++ x = gen_rtx_SET (stack_pointer_rtx, x); ++ insn = emit_insn (x); ++ add_reg_note (insn, REG_CFA_ADJUST_CFA, x); ++ RTX_FRAME_RELATED_P (insn) = 1; ++ ++ /* Now return address is in ECX. */ ++ emit_jump_insn (gen_simple_return_indirect_internal (ecx)); ++} ++ + /* Output the assembly for a call instruction. */ + + const char * +diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md +index 05a88fff356..857466a6361 100644 +--- a/gcc/config/i386/i386.md ++++ b/gcc/config/i386/i386.md +@@ -11813,7 +11813,7 @@ + (define_insn "*indirect_jump" + [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw"))] + "" +- "* return ix86_output_indirect_jmp (operands[0], false);" ++ "* return ix86_output_indirect_jmp (operands[0]);" + [(set (attr "type") + (if_then_else (match_test "(cfun->machine->indirect_branch_type + != indirect_branch_keep)") +@@ -11868,7 +11868,7 @@ + [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw")) + (use (label_ref (match_operand 1)))] + "" +- "* return ix86_output_indirect_jmp (operands[0], false);" ++ "* return ix86_output_indirect_jmp (operands[0]);" + [(set (attr "type") + (if_then_else (match_test "(cfun->machine->indirect_branch_type + != indirect_branch_keep)") +@@ -12520,11 +12520,14 @@ + (set_attr "prefix_rep" "1") + (set_attr "modrm" "0")]) + +-(define_insn "simple_return_pop_internal" ++(define_insn_and_split "simple_return_pop_internal" + [(simple_return) + (use (match_operand:SI 0 "const_int_operand"))] + "reload_completed" + "%!ret\t%0" ++ "&& cfun->machine->function_return_type != indirect_branch_keep" ++ [(const_int 0)] ++ "ix86_split_simple_return_pop_internal (operands[0]); DONE;" + [(set_attr "length" "3") + (set_attr "atom_unit" "jeu") + (set_attr "length_immediate" "2") +@@ -12535,7 +12538,7 @@ + [(simple_return) + (use (match_operand:SI 0 "register_operand" "r"))] + "reload_completed" +- "* return ix86_output_indirect_jmp (operands[0], true);" ++ "* return ix86_output_indirect_function_return (operands[0]);" + [(set (attr "type") + (if_then_else (match_test "(cfun->machine->indirect_branch_type + != indirect_branch_keep)") +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-22.c b/gcc/testsuite/gcc.target/i386/ret-thunk-22.c +new file mode 100644 +index 00000000000..89e086de97b +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-22.c +@@ -0,0 +1,15 @@ ++/* PR target/r84530 */ ++/* { dg-do compile { target ia32 } } */ ++/* { dg-options "-O2 -mfunction-return=thunk" } */ ++ ++struct s { _Complex unsigned short x; }; ++struct s gs = { 100 + 200i }; ++struct s __attribute__((noinline)) foo (void) { return gs; } ++ ++/* { dg-final { scan-assembler-times "popl\[\\t \]*%ecx" 1 } } */ ++/* { dg-final { scan-assembler "lea\[l\]?\[\\t \]*4\\(%esp\\), %esp" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk_ecx" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-23.c b/gcc/testsuite/gcc.target/i386/ret-thunk-23.c +new file mode 100644 +index 00000000000..43f0ccaa854 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-23.c +@@ -0,0 +1,15 @@ ++/* PR target/r84530 */ ++/* { dg-do compile { target ia32 } } */ ++/* { dg-options "-O2 -mfunction-return=thunk-extern" } */ ++ ++struct s { _Complex unsigned short x; }; ++struct s gs = { 100 + 200i }; ++struct s __attribute__((noinline)) foo (void) { return gs; } ++ ++/* { dg-final { scan-assembler-times "popl\[\\t \]*%ecx" 1 } } */ ++/* { dg-final { scan-assembler "lea\[l\]?\[\\t \]*4\\(%esp\\), %esp" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk_ecx" } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not {\tpause} } } */ ++/* { dg-final { scan-assembler-not {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-24.c b/gcc/testsuite/gcc.target/i386/ret-thunk-24.c +new file mode 100644 +index 00000000000..8729e35147e +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-24.c +@@ -0,0 +1,15 @@ ++/* PR target/r84530 */ ++/* { dg-do compile { target ia32 } } */ ++/* { dg-options "-O2 -mfunction-return=thunk-inline" } */ ++ ++struct s { _Complex unsigned short x; }; ++struct s gs = { 100 + 200i }; ++struct s __attribute__((noinline)) foo (void) { return gs; } ++ ++/* { dg-final { scan-assembler-times "popl\[\\t \]*%ecx" 1 } } */ ++/* { dg-final { scan-assembler "lea\[l\]?\[\\t \]*4\\(%esp\\), %esp" } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk_ecx" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-25.c b/gcc/testsuite/gcc.target/i386/ret-thunk-25.c +new file mode 100644 +index 00000000000..f73553c9a9f +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-25.c +@@ -0,0 +1,15 @@ ++/* PR target/r84530 */ ++/* { dg-do compile { target ia32 } } */ ++/* { dg-options "-O2 -mfunction-return=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ ++ ++struct s { _Complex unsigned short x; }; ++struct s gs = { 100 + 200i }; ++struct s __attribute__((noinline)) foo (void) { return gs; } ++ ++/* { dg-final { scan-assembler-times "popl\[\\t \]*%ecx" 1 } } */ ++/* { dg-final { scan-assembler "lea\[l\]?\[\\t \]*4\\(%esp\\), %esp" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk_bnd_ecx" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-26.c b/gcc/testsuite/gcc.target/i386/ret-thunk-26.c +new file mode 100644 +index 00000000000..9144e988735 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-26.c +@@ -0,0 +1,40 @@ ++/* PR target/r84530 */ ++/* { dg-do run } */ ++/* { dg-options "-Os -mfunction-return=thunk" } */ ++ ++struct S { int i; }; ++__attribute__((const, noinline, noclone)) ++struct S foo (int x) ++{ ++ struct S s; ++ s.i = x; ++ return s; ++} ++ ++int a[2048], b[2048], c[2048], d[2048]; ++struct S e[2048]; ++ ++__attribute__((noinline, noclone)) void ++bar (void) ++{ ++ int i; ++ for (i = 0; i < 1024; i++) ++ { ++ e[i] = foo (i); ++ a[i+2] = a[i] + a[i+1]; ++ b[10] = b[10] + i; ++ c[i] = c[2047 - i]; ++ d[i] = d[i + 1]; ++ } ++} ++ ++int ++main () ++{ ++ int i; ++ bar (); ++ for (i = 0; i < 1024; i++) ++ if (e[i].i != i) ++ __builtin_abort (); ++ return 0; ++} +-- +2.16.3 + diff --git a/main/gcc6/0012-i386-Add-TARGET_INDIRECT_BRANCH_REGISTER.patch b/main/gcc6/0012-i386-Add-TARGET_INDIRECT_BRANCH_REGISTER.patch new file mode 100644 index 000000000..1bd6134ce --- /dev/null +++ b/main/gcc6/0012-i386-Add-TARGET_INDIRECT_BRANCH_REGISTER.patch @@ -0,0 +1,1003 @@ +From a34d0b92e2c81792bd1f27e872c4c97a2df6861c Mon Sep 17 00:00:00 2001 +From: hjl +Date: Mon, 26 Feb 2018 17:00:46 +0000 +Subject: [PATCH 12/13] i386: Add TARGET_INDIRECT_BRANCH_REGISTER + +For + +--- +struct C { + virtual ~C(); + virtual void f(); +}; + +void +f (C *p) +{ + p->f(); + p->f(); +} +--- + +-mindirect-branch=thunk-extern -O2 on x86-64 GNU/Linux generates: + +_Z1fP1C: +.LFB0: + .cfi_startproc + pushq %rbx + .cfi_def_cfa_offset 16 + .cfi_offset 3, -16 + movq (%rdi), %rax + movq %rdi, %rbx + jmp .LIND1 +.LIND0: + pushq 16(%rax) + jmp __x86_indirect_thunk +.LIND1: + call .LIND0 + movq (%rbx), %rax + movq %rbx, %rdi + popq %rbx + .cfi_def_cfa_offset 8 + movq 16(%rax), %rax + jmp __x86_indirect_thunk_rax + .cfi_endproc + +x86-64 is supposed to have asynchronous unwind tables by default, but +there is nothing that reflects the change in the (relative) frame +address after .LIND0. That region really has to be moved outside of +the .cfi_startproc/.cfi_endproc bracket. + +This patch adds TARGET_INDIRECT_BRANCH_REGISTER to force indirect +branch via register whenever -mindirect-branch= is used. Now, +-mindirect-branch=thunk-extern -O2 on x86-64 GNU/Linux generates: + +_Z1fP1C: +.LFB0: + .cfi_startproc + pushq %rbx + .cfi_def_cfa_offset 16 + .cfi_offset 3, -16 + movq (%rdi), %rax + movq %rdi, %rbx + movq 16(%rax), %rax + call __x86_indirect_thunk_rax + movq (%rbx), %rax + movq %rbx, %rdi + popq %rbx + .cfi_def_cfa_offset 8 + movq 16(%rax), %rax + jmp __x86_indirect_thunk_rax + .cfi_endproc + +so that "-mindirect-branch=thunk-extern" is equivalent to +"-mindirect-branch=thunk-extern -mindirect-branch-register", which is +used by Linux kernel. + +gcc/ + + Backport from mainline + 2018-02-26 H.J. Lu + + PR target/84039 + * config/i386/constraints.md (Bs): Replace + ix86_indirect_branch_register with + TARGET_INDIRECT_BRANCH_REGISTER. + (Bw): Likewise. + * config/i386/i386.md (indirect_jump): Likewise. + (tablejump): Likewise. + (*sibcall_memory): Likewise. + (*sibcall_value_memory): Likewise. + Peepholes of indirect call and jump via memory: Likewise. + (*sibcall_GOT_32): Disallowed for TARGET_INDIRECT_BRANCH_REGISTER. + (*sibcall_value_GOT_32): Likewise. + * config/i386/predicates.md (indirect_branch_operand): Likewise. + (GOT_memory_operand): Likewise. + (call_insn_operand): Likewise. + (sibcall_insn_operand): Likewise. + (GOT32_symbol_operand): Likewise. + * config/i386/i386.h (TARGET_INDIRECT_BRANCH_REGISTER): New. + +gcc/testsuite/ + + Backport from mainline + 2018-02-26 H.J. Lu + + PR target/84039 + * gcc.target/i386/indirect-thunk-1.c: Updated. + * gcc.target/i386/indirect-thunk-2.c: Likewise. + * gcc.target/i386/indirect-thunk-3.c: Likewise. + * gcc.target/i386/indirect-thunk-4.c: Likewise. + * gcc.target/i386/indirect-thunk-5.c: Likewise. + * gcc.target/i386/indirect-thunk-6.c: Likewise. + * gcc.target/i386/indirect-thunk-7.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-1.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-2.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-3.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-4.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-5.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-6.c: Likewise. + * gcc.target/i386/indirect-thunk-attr-7.c: Likewise. + * gcc.target/i386/indirect-thunk-bnd-1.c: Likewise. + * gcc.target/i386/indirect-thunk-bnd-2.c: Likewise. + * gcc.target/i386/indirect-thunk-bnd-3.c: Likewise. + * gcc.target/i386/indirect-thunk-bnd-4.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-1.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-2.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-3.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-4.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-5.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-6.c: Likewise. + * gcc.target/i386/indirect-thunk-extern-7.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-1.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-2.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-3.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-4.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-5.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-6.c: Likewise. + * gcc.target/i386/indirect-thunk-inline-7.c: Likewise. + * gcc.target/i386/ret-thunk-9.c: Likewise. + * gcc.target/i386/ret-thunk-10.c: Likewise. + * gcc.target/i386/ret-thunk-11.c: Likewise. + * gcc.target/i386/ret-thunk-12.c: Likewise. + * gcc.target/i386/ret-thunk-13.c: Likewise. + * gcc.target/i386/ret-thunk-14.c: Likewise. + * gcc.target/i386/ret-thunk-15.c: Likewise. +--- + gcc/config/i386/constraints.md | 4 ++-- + gcc/config/i386/i386.h | 5 ++++ + gcc/config/i386/i386.md | 28 +++++++++++++--------- + gcc/config/i386/predicates.md | 6 ++--- + gcc/testsuite/gcc.target/i386/indirect-thunk-1.c | 5 ++-- + gcc/testsuite/gcc.target/i386/indirect-thunk-2.c | 5 ++-- + gcc/testsuite/gcc.target/i386/indirect-thunk-3.c | 5 ++-- + gcc/testsuite/gcc.target/i386/indirect-thunk-4.c | 5 ++-- + gcc/testsuite/gcc.target/i386/indirect-thunk-5.c | 6 +++-- + gcc/testsuite/gcc.target/i386/indirect-thunk-6.c | 12 ++++++---- + gcc/testsuite/gcc.target/i386/indirect-thunk-7.c | 5 ++-- + .../gcc.target/i386/indirect-thunk-attr-1.c | 5 ++-- + .../gcc.target/i386/indirect-thunk-attr-2.c | 5 ++-- + .../gcc.target/i386/indirect-thunk-attr-3.c | 3 +-- + .../gcc.target/i386/indirect-thunk-attr-4.c | 3 +-- + .../gcc.target/i386/indirect-thunk-attr-5.c | 9 ++++--- + .../gcc.target/i386/indirect-thunk-attr-6.c | 9 ++++--- + .../gcc.target/i386/indirect-thunk-attr-7.c | 5 ++-- + .../gcc.target/i386/indirect-thunk-bnd-1.c | 6 ++--- + .../gcc.target/i386/indirect-thunk-bnd-2.c | 6 ++--- + .../gcc.target/i386/indirect-thunk-bnd-3.c | 5 ++-- + .../gcc.target/i386/indirect-thunk-bnd-4.c | 7 +++--- + .../gcc.target/i386/indirect-thunk-extern-1.c | 5 ++-- + .../gcc.target/i386/indirect-thunk-extern-2.c | 5 ++-- + .../gcc.target/i386/indirect-thunk-extern-3.c | 9 ++++--- + .../gcc.target/i386/indirect-thunk-extern-4.c | 6 ++--- + .../gcc.target/i386/indirect-thunk-extern-5.c | 6 +++-- + .../gcc.target/i386/indirect-thunk-extern-6.c | 8 +++---- + .../gcc.target/i386/indirect-thunk-extern-7.c | 5 ++-- + .../gcc.target/i386/indirect-thunk-inline-1.c | 2 +- + .../gcc.target/i386/indirect-thunk-inline-2.c | 2 +- + .../gcc.target/i386/indirect-thunk-inline-3.c | 2 +- + .../gcc.target/i386/indirect-thunk-inline-4.c | 2 +- + .../gcc.target/i386/indirect-thunk-inline-5.c | 3 ++- + .../gcc.target/i386/indirect-thunk-inline-6.c | 3 ++- + .../gcc.target/i386/indirect-thunk-inline-7.c | 4 ++-- + gcc/testsuite/gcc.target/i386/ret-thunk-10.c | 9 +++---- + gcc/testsuite/gcc.target/i386/ret-thunk-11.c | 9 +++---- + gcc/testsuite/gcc.target/i386/ret-thunk-12.c | 8 +++---- + gcc/testsuite/gcc.target/i386/ret-thunk-13.c | 5 ++-- + gcc/testsuite/gcc.target/i386/ret-thunk-14.c | 7 +++--- + gcc/testsuite/gcc.target/i386/ret-thunk-15.c | 7 +++--- + gcc/testsuite/gcc.target/i386/ret-thunk-9.c | 13 ++++------ + 43 files changed, 128 insertions(+), 141 deletions(-) + +diff --git a/gcc/config/i386/constraints.md b/gcc/config/i386/constraints.md +index 9204c8e8487..ef684a95497 100644 +--- a/gcc/config/i386/constraints.md ++++ b/gcc/config/i386/constraints.md +@@ -172,7 +172,7 @@ + + (define_constraint "Bs" + "@internal Sibcall memory operand." +- (ior (and (not (match_test "ix86_indirect_branch_register")) ++ (ior (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER")) + (not (match_test "TARGET_X32")) + (match_operand 0 "sibcall_memory_operand")) + (and (match_test "TARGET_X32 && Pmode == DImode") +@@ -180,7 +180,7 @@ + + (define_constraint "Bw" + "@internal Call memory operand." +- (ior (and (not (match_test "ix86_indirect_branch_register")) ++ (ior (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER")) + (not (match_test "TARGET_X32")) + (match_operand 0 "memory_operand")) + (and (match_test "TARGET_X32 && Pmode == DImode") +diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h +index b34bc117c34..1816d710f4e 100644 +--- a/gcc/config/i386/i386.h ++++ b/gcc/config/i386/i386.h +@@ -2676,6 +2676,11 @@ extern void debug_dispatch_window (int); + #define TARGET_RECIP_VEC_DIV ((recip_mask & RECIP_MASK_VEC_DIV) != 0) + #define TARGET_RECIP_VEC_SQRT ((recip_mask & RECIP_MASK_VEC_SQRT) != 0) + ++ ++#define TARGET_INDIRECT_BRANCH_REGISTER \ ++ (ix86_indirect_branch_register \ ++ || cfun->machine->indirect_branch_type != indirect_branch_keep) ++ + #define IX86_HLE_ACQUIRE (1 << 16) + #define IX86_HLE_RELEASE (1 << 17) + +diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md +index 857466a6361..6a6dc26799c 100644 +--- a/gcc/config/i386/i386.md ++++ b/gcc/config/i386/i386.md +@@ -11805,7 +11805,7 @@ + [(set (pc) (match_operand 0 "indirect_branch_operand"))] + "" + { +- if (TARGET_X32 || ix86_indirect_branch_register) ++ if (TARGET_X32 || TARGET_INDIRECT_BRANCH_REGISTER) + operands[0] = convert_memory_address (word_mode, operands[0]); + cfun->machine->has_local_indirect_jump = true; + }) +@@ -11859,7 +11859,7 @@ + OPTAB_DIRECT); + } + +- if (TARGET_X32 || ix86_indirect_branch_register) ++ if (TARGET_X32 || TARGET_INDIRECT_BRANCH_REGISTER) + operands[0] = convert_memory_address (word_mode, operands[0]); + cfun->machine->has_local_indirect_jump = true; + }) +@@ -12029,7 +12029,10 @@ + (match_operand:SI 0 "register_no_elim_operand" "U") + (match_operand:SI 1 "GOT32_symbol_operand")))) + (match_operand 2))] +- "!TARGET_MACHO && !TARGET_64BIT && SIBLING_CALL_P (insn)" ++ "!TARGET_MACHO ++ && !TARGET_64BIT ++ && !TARGET_INDIRECT_BRANCH_REGISTER ++ && SIBLING_CALL_P (insn)" + { + rtx fnaddr = gen_rtx_PLUS (Pmode, operands[0], operands[1]); + fnaddr = gen_const_mem (Pmode, fnaddr); +@@ -12048,7 +12051,7 @@ + [(call (mem:QI (match_operand:W 0 "memory_operand" "m")) + (match_operand 1)) + (unspec [(const_int 0)] UNSPEC_PEEPSIB)] +- "!TARGET_X32 && !ix86_indirect_branch_register" ++ "!TARGET_X32 && !TARGET_INDIRECT_BRANCH_REGISTER" + "* return ix86_output_call_insn (insn, operands[0]);" + [(set_attr "type" "call")]) + +@@ -12058,7 +12061,7 @@ + (call (mem:QI (match_dup 0)) + (match_operand 3))] + "!TARGET_X32 +- && !ix86_indirect_branch_register ++ && !TARGET_INDIRECT_BRANCH_REGISTER + && SIBLING_CALL_P (peep2_next_insn (1)) + && !reg_mentioned_p (operands[0], + CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))" +@@ -12073,7 +12076,7 @@ + (call (mem:QI (match_dup 0)) + (match_operand 3))] + "!TARGET_X32 +- && !ix86_indirect_branch_register ++ && !TARGET_INDIRECT_BRANCH_REGISTER + && SIBLING_CALL_P (peep2_next_insn (2)) + && !reg_mentioned_p (operands[0], + CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))" +@@ -12171,7 +12174,7 @@ + (match_operand:W 1 "memory_operand")) + (set (pc) (match_dup 0))] + "!TARGET_X32 +- && !ix86_indirect_branch_register ++ && !TARGET_INDIRECT_BRANCH_REGISTER + && peep2_reg_dead_p (2, operands[0])" + [(set (pc) (match_dup 1))]) + +@@ -12229,7 +12232,10 @@ + (match_operand:SI 1 "register_no_elim_operand" "U") + (match_operand:SI 2 "GOT32_symbol_operand")))) + (match_operand 3)))] +- "!TARGET_MACHO && !TARGET_64BIT && SIBLING_CALL_P (insn)" ++ "!TARGET_MACHO ++ && !TARGET_64BIT ++ && !TARGET_INDIRECT_BRANCH_REGISTER ++ && SIBLING_CALL_P (insn)" + { + rtx fnaddr = gen_rtx_PLUS (Pmode, operands[1], operands[2]); + fnaddr = gen_const_mem (Pmode, fnaddr); +@@ -12250,7 +12256,7 @@ + (call (mem:QI (match_operand:W 1 "memory_operand" "m")) + (match_operand 2))) + (unspec [(const_int 0)] UNSPEC_PEEPSIB)] +- "!TARGET_X32 && !ix86_indirect_branch_register" ++ "!TARGET_X32 && !TARGET_INDIRECT_BRANCH_REGISTER" + "* return ix86_output_call_insn (insn, operands[1]);" + [(set_attr "type" "callv")]) + +@@ -12261,7 +12267,7 @@ + (call (mem:QI (match_dup 0)) + (match_operand 3)))] + "!TARGET_X32 +- && !ix86_indirect_branch_register ++ && !TARGET_INDIRECT_BRANCH_REGISTER + && SIBLING_CALL_P (peep2_next_insn (1)) + && !reg_mentioned_p (operands[0], + CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))" +@@ -12278,7 +12284,7 @@ + (call (mem:QI (match_dup 0)) + (match_operand 3)))] + "!TARGET_X32 +- && !ix86_indirect_branch_register ++ && !TARGET_INDIRECT_BRANCH_REGISTER + && SIBLING_CALL_P (peep2_next_insn (2)) + && !reg_mentioned_p (operands[0], + CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))" +diff --git a/gcc/config/i386/predicates.md b/gcc/config/i386/predicates.md +index d1f0a7dbf61..5f8a98faead 100644 +--- a/gcc/config/i386/predicates.md ++++ b/gcc/config/i386/predicates.md +@@ -593,7 +593,7 @@ + ;; Test for a valid operand for indirect branch. + (define_predicate "indirect_branch_operand" + (ior (match_operand 0 "register_operand") +- (and (not (match_test "ix86_indirect_branch_register")) ++ (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER")) + (not (match_test "TARGET_X32")) + (match_operand 0 "memory_operand")))) + +@@ -637,7 +637,7 @@ + (ior (match_test "constant_call_address_operand + (op, mode == VOIDmode ? mode : Pmode)") + (match_operand 0 "call_register_no_elim_operand") +- (and (not (match_test "ix86_indirect_branch_register")) ++ (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER")) + (ior (and (not (match_test "TARGET_X32")) + (match_operand 0 "memory_operand")) + (and (match_test "TARGET_X32 && Pmode == DImode") +@@ -648,7 +648,7 @@ + (ior (match_test "constant_call_address_operand + (op, mode == VOIDmode ? mode : Pmode)") + (match_operand 0 "register_no_elim_operand") +- (and (not (match_test "ix86_indirect_branch_register")) ++ (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER")) + (ior (and (not (match_test "TARGET_X32")) + (match_operand 0 "sibcall_memory_operand")) + (and (match_test "TARGET_X32 && Pmode == DImode") +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c +index 60d09881a99..6e94d2c4865 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c +@@ -11,9 +11,8 @@ male_indirect_jump (long offset) + dispatch(offset); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c +index aac75163794..3c467078964 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c +@@ -11,9 +11,8 @@ male_indirect_jump (long offset) + dispatch[offset](offset); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c +index 9e24a385387..2c7fb52b59d 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c +@@ -12,9 +12,8 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c +index 127b5d94523..0d3f895009d 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c +@@ -12,9 +12,8 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c +index fcaa18d10b7..fb26c005e80 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c +@@ -9,8 +9,10 @@ foo (void) + bar (); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c +index e4649283d10..aa03fbd8446 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c +@@ -10,9 +10,13 @@ foo (void) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */ +-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ +-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target x32 } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 { target x32 } } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ + /* { dg-final { scan-assembler {\tpause} } } */ + /* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c +index 17c2d0faf88..3c72036dbaf 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c +@@ -35,9 +35,8 @@ bar (int i) + } + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c +index 9194ccf3cbc..7106407b83d 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c +@@ -14,9 +14,8 @@ male_indirect_jump (long offset) + dispatch(offset); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c +index e51f261a612..27c7e5b029b 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c +@@ -12,9 +12,8 @@ male_indirect_jump (long offset) + dispatch[offset](offset); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c +index 4aeec1833cd..89a2bac8403 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c +@@ -14,10 +14,9 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ + /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler {\tpause} } } */ + /* { dg-final { scan-assembler {\tlfence} } } */ + /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */ +-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c +index ac0e5999f63..3eb83c3779a 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c +@@ -13,10 +13,9 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ + /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler {\tpause} } } */ + /* { dg-final { scan-assembler {\tlfence} } } */ + /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */ +-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c +index 573cf1ef09e..0098dd1133d 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c +@@ -14,9 +14,8 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ + /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c +index b2b37fc6e2e..ece8de15a4b 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c +@@ -13,9 +13,8 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ + /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c +index 4a43e199931..d53fc887dcc 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c +@@ -36,9 +36,8 @@ bar (int i) + } + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ + /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ + /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c +index ac84ab623fa..73d16baddc7 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c +@@ -10,9 +10,9 @@ foo (void) + dispatch (buf); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */ +-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd_rax" { target lp64 } } } */ ++/* { dg-final { scan-assembler "bnd call\[ \t\]*__x86_indirect_thunk_bnd_eax" { target ia32 } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "bnd ret" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c +index ce655e8be1c..856751ac224 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c +@@ -11,10 +11,8 @@ foo (void) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */ +-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */ +-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "bnd call\[ \t\]*__x86_indirect_thunk_bnd_(r|e)ax" } } */ + /* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "bnd ret" } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c +index d34485a0010..42312f65588 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c +@@ -10,8 +10,9 @@ foo (void) + bar (buf); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ +-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd_rax" { target lp64 } } } */ ++/* { dg-final { scan-assembler "bnd call\[ \t\]*__x86_indirect_thunk_bnd_eax" { target ia32 } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "bnd ret" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c +index 0e19830de4d..c8ca102c8df 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c +@@ -11,10 +11,9 @@ foo (void) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ +-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk" } } */ +-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */ +-/* { dg-final { scan-assembler-times "bnd call\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler "bnd call\[ \t\]*__x86_indirect_thunk_bnd_(r|e)ax" } } */ ++/* { dg-final { scan-assembler-times "bnd call\[ \t\]*\.LIND" 1 } } */ + /* { dg-final { scan-assembler "bnd ret" } } */ + /* { dg-final { scan-assembler {\tpause} } } */ + /* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c +index 579441f250e..c09dd0afd2d 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c +@@ -11,9 +11,8 @@ male_indirect_jump (long offset) + dispatch(offset); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ + /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ + /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c +index c92e6f2b02d..826425a5115 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c +@@ -11,9 +11,8 @@ male_indirect_jump (long offset) + dispatch[offset](offset); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ + /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ + /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c +index d9964c25bbd..385626850a2 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c +@@ -12,9 +12,8 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ + /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c +index d4dca4dc5fe..1ae49b137ca 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c +@@ -12,9 +12,7 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ + /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ + /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c +index 5c07e02df6a..53282390977 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c +@@ -9,8 +9,10 @@ foo (void) + bar (); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ + /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c +index 3eb440693a0..8ae43482d0c 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c +@@ -10,8 +10,8 @@ foo (void) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ +-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 } } */ +-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c +index aece9383697..2b9a33e93dc 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c +@@ -35,9 +35,8 @@ bar (int i) + } + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ + /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ + /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c +index 3aba5e8c81f..869d9040838 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c +@@ -11,7 +11,7 @@ male_indirect_jump (long offset) + dispatch(offset); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c +index 0f0181d6672..c5c16ed8bd8 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c +@@ -11,7 +11,7 @@ male_indirect_jump (long offset) + dispatch[offset](offset); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c +index 2eef6f35a75..4a63ebed8ab 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c +@@ -12,7 +12,7 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ + /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler-times {\tpause} 1 } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c +index e825a10f14c..a395ffca018 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c +@@ -12,7 +12,7 @@ male_indirect_jump (long offset) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */ + /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler-times {\tpause} 1 } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c +index c6d77e10352..21cbfd39582 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c +@@ -9,7 +9,8 @@ foo (void) + bar (); + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c +index 6454827b780..d1300f18dc7 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c +@@ -10,7 +10,8 @@ foo (void) + return 0; + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */ + /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ + /* { dg-final { scan-assembler-times {\tpause} 1 } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c +index c67066cf197..ea009245a58 100644 +--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c +@@ -35,8 +35,8 @@ bar (int i) + } + } + +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%(r|e)ax" } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c +index e6fea84a4d9..af9023af613 100644 +--- a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c +@@ -15,9 +15,6 @@ foo (void) + /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */ + /* { dg-final { scan-assembler-times {\tpause} 2 } } */ + /* { dg-final { scan-assembler-times {\tlfence} 2 } } */ +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */ +-/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } } } } */ +-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ ++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c +index e239ec4542f..ba467c59b36 100644 +--- a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c +@@ -15,9 +15,6 @@ foo (void) + /* { dg-final { scan-assembler-times {\tlfence} 1 } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */ +-/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } } } } */ +-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ ++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c +index fa3181303c9..43e57cac2c3 100644 +--- a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c +@@ -15,8 +15,6 @@ foo (void) + /* { dg-final { scan-assembler-times {\tlfence} 1 } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */ +-/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } } } } */ +-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ ++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c +index fd5b41fdd3f..55f156c4376 100644 +--- a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c +@@ -14,9 +14,8 @@ foo (void) + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */ + /* { dg-final { scan-assembler-times {\tpause} 2 } } */ + /* { dg-final { scan-assembler-times {\tlfence} 2 } } */ +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */ + /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 3 } } */ + /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 3 } } */ + /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_indirect_thunk" } } */ +-/* { dg-final { scan-assembler-not "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */ +-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c +index d606373ead1..1c790436a53 100644 +--- a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c +@@ -16,7 +16,6 @@ foo (void) + /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */ +-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?bar" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c +index 75e45e226b8..58aba319cba 100644 +--- a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c +@@ -16,7 +16,6 @@ foo (void) + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler-times {\tpause} 1 } } */ + /* { dg-final { scan-assembler-times {\tlfence} 1 } } */ +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */ +-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?bar" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c +index d1db41cc128..d2df8b874e0 100644 +--- a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c +@@ -14,11 +14,8 @@ foo (void) + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "__x86_indirect_thunk:" } } */ +-/* { dg-final { scan-assembler-times {\tpause} 1 { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler-times {\tlfence} 1 { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */ +-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */ +-/* { dg-final { scan-assembler-times {\tpause} 2 { target { x32 } } } } */ +-/* { dg-final { scan-assembler-times {\tlfence} 2 { target { x32 } } } } */ +-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */ +-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ ++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?bar" { target *-*-linux* } } } */ ++/* { dg-final { scan-assembler-times {\tpause} 2 } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 2 } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */ +-- +2.16.3 + diff --git a/main/gcc6/0013-i386-Don-t-generate-alias-for-function-return-thunk.patch b/main/gcc6/0013-i386-Don-t-generate-alias-for-function-return-thunk.patch new file mode 100644 index 000000000..d846ac77d --- /dev/null +++ b/main/gcc6/0013-i386-Don-t-generate-alias-for-function-return-thunk.patch @@ -0,0 +1,225 @@ +From e7fbaebc8ff650df76f43e92cb9ca59d5174ebe7 Mon Sep 17 00:00:00 2001 +From: hjl +Date: Thu, 15 Mar 2018 17:54:40 +0000 +Subject: [PATCH 13/13] i386: Don't generate alias for function return thunk + +Function return thunks shouldn't be aliased to indirect branch thunks +since indirect branch thunks are placed in COMDAT section and a COMDAT +section with indirect branch may not have function return thunk. This +patch generates function return thunks directly. + +gcc/ + + Backport from mainline + PR target/84574 + * config/i386/i386.c (indirect_thunk_needed): Update comments. + (indirect_thunk_bnd_needed): Likewise. + (indirect_thunks_used): Likewise. + (indirect_thunks_bnd_used): Likewise. + (indirect_return_needed): New. + (indirect_return_bnd_needed): Likewise. + (output_indirect_thunk_function): Add a bool argument for + function return. + (output_indirect_thunk_function): Don't generate alias for + function return thunk. + (ix86_code_end): Call output_indirect_thunk_function to generate + function return thunks. + (ix86_output_function_return): Set indirect_return_bnd_needed + and indirect_return_needed instead of indirect_thunk_bnd_needed + and indirect_thunk_needed. + +gcc/testsuite/ + + Backport from mainline + PR target/84574 + * gcc.target/i386/ret-thunk-9.c: Expect __x86_return_thunk + label instead of __x86_indirect_thunk label. +--- + gcc/config/i386/i386.c | 92 ++++++++++------------------- + gcc/testsuite/gcc.target/i386/ret-thunk-9.c | 2 +- + 2 files changed, 33 insertions(+), 61 deletions(-) + +diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c +index 21c3c18bd3c..f4cd1c6f4e9 100644 +--- a/gcc/config/i386/i386.c ++++ b/gcc/config/i386/i386.c +@@ -11067,19 +11067,23 @@ ix86_setup_frame_addresses (void) + labels in call and return thunks. */ + static int indirectlabelno; + +-/* True if call and return thunk functions are needed. */ ++/* True if call thunk function is needed. */ + static bool indirect_thunk_needed = false; +-/* True if call and return thunk functions with the BND prefix are +- needed. */ ++/* True if call thunk function with the BND prefix is needed. */ + static bool indirect_thunk_bnd_needed = false; + + /* Bit masks of integer registers, which contain branch target, used +- by call and return thunks functions. */ ++ by call thunk functions. */ + static int indirect_thunks_used; + /* Bit masks of integer registers, which contain branch target, used +- by call and return thunks functions with the BND prefix. */ ++ by call thunk functions with the BND prefix. */ + static int indirect_thunks_bnd_used; + ++/* True if return thunk function is needed. */ ++static bool indirect_return_needed = false; ++/* True if return thunk function with the BND prefix is needed. */ ++static bool indirect_return_bnd_needed = false; ++ + /* True if return thunk function via CX is needed. */ + static bool indirect_return_via_cx; + /* True if return thunk function via CX with the BND prefix is +@@ -11226,16 +11230,18 @@ output_indirect_thunk (bool need_bnd_p, unsigned int regno) + /* Output a funtion with a call and return thunk for indirect branch. + If BND_P is true, the BND prefix is needed. If REGNO != INVALID_REGNUM, + the function address is in REGNO. Otherwise, the function address is +- on the top of stack. */ ++ on the top of stack. Thunk is used for function return if RET_P is ++ true. */ + + static void +-output_indirect_thunk_function (bool need_bnd_p, unsigned int regno) ++output_indirect_thunk_function (bool need_bnd_p, unsigned int regno, ++ bool ret_p) + { + char name[32]; + tree decl; + + /* Create __x86_indirect_thunk/__x86_indirect_thunk_bnd. */ +- indirect_thunk_name (name, regno, need_bnd_p, false); ++ indirect_thunk_name (name, regno, need_bnd_p, ret_p); + decl = build_decl (BUILTINS_LOCATION, FUNCTION_DECL, + get_identifier (name), + build_function_type_list (void_type_node, NULL_TREE)); +@@ -11278,50 +11284,6 @@ output_indirect_thunk_function (bool need_bnd_p, unsigned int regno) + ASM_OUTPUT_LABEL (asm_out_file, name); + } + +- /* Create alias for __x86_return_thunk/__x86_return_thunk_bnd or +- __x86_return_thunk_ecx/__x86_return_thunk_ecx_bnd. */ +- bool need_alias; +- if (regno == INVALID_REGNUM) +- need_alias = true; +- else if (regno == CX_REG) +- { +- if (need_bnd_p) +- need_alias = indirect_return_via_cx_bnd; +- else +- need_alias = indirect_return_via_cx; +- } +- else +- need_alias = false; +- +- if (need_alias) +- { +- char alias[32]; +- +- indirect_thunk_name (alias, regno, need_bnd_p, true); +-#if TARGET_MACHO +- if (TARGET_MACHO) +- { +- fputs ("\t.weak_definition\t", asm_out_file); +- assemble_name (asm_out_file, alias); +- fputs ("\n\t.private_extern\t", asm_out_file); +- assemble_name (asm_out_file, alias); +- putc ('\n', asm_out_file); +- ASM_OUTPUT_LABEL (asm_out_file, alias); +- } +-#else +- ASM_OUTPUT_DEF (asm_out_file, alias, name); +- if (USE_HIDDEN_LINKONCE) +- { +- fputs ("\t.globl\t", asm_out_file); +- assemble_name (asm_out_file, alias); +- putc ('\n', asm_out_file); +- fputs ("\t.hidden\t", asm_out_file); +- assemble_name (asm_out_file, alias); +- putc ('\n', asm_out_file); +- } +-#endif +- } +- + DECL_INITIAL (decl) = make_node (BLOCK); + current_function_decl = decl; + allocate_struct_function (decl, false); +@@ -11368,19 +11330,29 @@ ix86_code_end (void) + rtx xops[2]; + unsigned int regno; + ++ if (indirect_return_needed) ++ output_indirect_thunk_function (false, INVALID_REGNUM, true); ++ if (indirect_return_bnd_needed) ++ output_indirect_thunk_function (true, INVALID_REGNUM, true); ++ ++ if (indirect_return_via_cx) ++ output_indirect_thunk_function (false, CX_REG, true); ++ if (indirect_return_via_cx_bnd) ++ output_indirect_thunk_function (true, CX_REG, true); ++ + if (indirect_thunk_needed) +- output_indirect_thunk_function (false, INVALID_REGNUM); ++ output_indirect_thunk_function (false, INVALID_REGNUM, false); + if (indirect_thunk_bnd_needed) +- output_indirect_thunk_function (true, INVALID_REGNUM); ++ output_indirect_thunk_function (true, INVALID_REGNUM, false); + + for (regno = FIRST_REX_INT_REG; regno <= LAST_REX_INT_REG; regno++) + { + unsigned int i = regno - FIRST_REX_INT_REG + LAST_INT_REG + 1; + if ((indirect_thunks_used & (1 << i))) +- output_indirect_thunk_function (false, regno); ++ output_indirect_thunk_function (false, regno, false); + + if ((indirect_thunks_bnd_used & (1 << i))) +- output_indirect_thunk_function (true, regno); ++ output_indirect_thunk_function (true, regno, false); + } + + for (regno = AX_REG; regno <= SP_REG; regno++) +@@ -11389,10 +11361,10 @@ ix86_code_end (void) + tree decl; + + if ((indirect_thunks_used & (1 << regno))) +- output_indirect_thunk_function (false, regno); ++ output_indirect_thunk_function (false, regno, false); + + if ((indirect_thunks_bnd_used & (1 << regno))) +- output_indirect_thunk_function (true, regno); ++ output_indirect_thunk_function (true, regno, false); + + if (!(pic_labels_used & (1 << regno))) + continue; +@@ -28077,12 +28049,12 @@ ix86_output_function_return (bool long_p) + true); + if (need_bnd_p) + { +- indirect_thunk_bnd_needed |= need_thunk; ++ indirect_return_bnd_needed |= need_thunk; + fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name); + } + else + { +- indirect_thunk_needed |= need_thunk; ++ indirect_return_needed |= need_thunk; + fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name); + } + } +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c +index d2df8b874e0..eee230ca2f6 100644 +--- a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c +@@ -13,7 +13,7 @@ foo (void) + /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */ + /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ + /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ +-/* { dg-final { scan-assembler "__x86_indirect_thunk:" } } */ ++/* { dg-final { scan-assembler "__x86_return_thunk:" } } */ + /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?bar" { target *-*-linux* } } } */ + /* { dg-final { scan-assembler-times {\tpause} 2 } } */ + /* { dg-final { scan-assembler-times {\tlfence} 2 } } */ +-- +2.16.3 + diff --git a/main/gcc6/001_all_default-ssp-strong.patch b/main/gcc6/001_all_default-ssp-strong.patch new file mode 100644 index 000000000..95949eb00 --- /dev/null +++ b/main/gcc6/001_all_default-ssp-strong.patch @@ -0,0 +1,215 @@ +# DP: Turn on -fstack-protector by default for C, C++, ObjC, ObjC++. +# DP: Build libgcc using -fno-stack-protector. + +--- + gcc/Makefile.in | 2 ++ + gcc/cp/lang-specs.h | 6 +++--- + gcc/doc/invoke.texi | 4 ++++ + gcc/gcc.c | 18 ++++++++++++++---- + gcc/objc/lang-specs.h | 10 +++++----- + gcc/objcp/lang-specs.h | 8 ++++---- + 6 files changed, 32 insertions(+), 16 deletions(-) + +Index: b/gcc/gcc.c +=================================================================== +--- a/gcc/gcc.c ++++ b/gcc/gcc.c +@@ -858,6 +858,14 @@ proper position among the other output f + #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G" + #endif + ++#ifndef SSP_DEFAULT_SPEC ++#ifdef TARGET_LIBC_PROVIDES_SSP ++#define SSP_DEFAULT_SPEC "%{!fno-stack-protector:%{!fstack-protector-all:%{!ffreestanding:%{!nostdlib:%{!fstack-protector:-fstack-protector-strong}}}}}" ++#else ++#define SSP_DEFAULT_SPEC "" ++#endif ++#endif ++ + #ifndef LINK_SSP_SPEC + #ifdef TARGET_LIBC_PROVIDES_SSP + #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \ +@@ -1057,6 +1065,7 @@ static const char *cc1_spec = CC1_SPEC; + static const char *cc1plus_spec = CC1PLUS_SPEC; + static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC; + static const char *link_ssp_spec = LINK_SSP_SPEC; ++static const char *ssp_default_spec = SSP_DEFAULT_SPEC; + static const char *asm_spec = ASM_SPEC; + static const char *asm_final_spec = ASM_FINAL_SPEC; + static const char *link_spec = LINK_SPEC; +@@ -1112,7 +1121,7 @@ static const char *cpp_unique_options = + static const char *cpp_options = + "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\ + %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\ +- %{undef} %{save-temps*:-fpch-preprocess}"; ++ %{undef} %{save-temps*:-fpch-preprocess} %(ssp_default)"; + + /* This contains cpp options which are not passed when the preprocessor + output will be used by another program. */ +@@ -1301,9 +1310,9 @@ static const struct compiler default_com + %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \ + %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\ + cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \ +- %(cc1_options)}\ ++ %(cc1_options) %(ssp_default)}\ + %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\ +- cc1 %(cpp_unique_options) %(cc1_options)}}}\ ++ cc1 %(cpp_unique_options) %(cc1_options) %(ssp_default)}}}\ + %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1}, + {"-", + "%{!E:%e-E or -x required when input is from standard input}\ +@@ -1328,7 +1337,7 @@ static const struct compiler default_com + %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0}, + {".i", "@cpp-output", 0, 0, 0}, + {"@cpp-output", +- "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, ++ "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %(ssp_default) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, + {".s", "@assembler", 0, 0, 0}, + {"@assembler", + "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0}, +@@ -1560,6 +1569,7 @@ static struct spec_list static_specs[] = + INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec), + INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec), + INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec), ++ INIT_STATIC_SPEC ("ssp_default", &ssp_default_spec), + INIT_STATIC_SPEC ("endfile", &endfile_spec), + INIT_STATIC_SPEC ("link", &link_spec), + INIT_STATIC_SPEC ("lib", &lib_spec), +Index: b/gcc/cp/lang-specs.h +=================================================================== +--- a/gcc/cp/lang-specs.h ++++ b/gcc/cp/lang-specs.h +@@ -46,7 +46,7 @@ along with GCC; see the file COPYING3. + %(cpp_options) %2 -o %{save-temps*:%b.ii} %{!save-temps*:%g.ii} \n}\ + cc1plus %{save-temps*|no-integrated-cpp:-fpreprocessed %{save-temps*:%b.ii} %{!save-temps*:%g.ii}}\ + %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}\ +- %(cc1_options) %2\ ++ %(cc1_options) %(ssp_default) %2\ + %{!fsyntax-only:-o %g.s \ + %{!fdump-ada-spec*:%{!o*:--output-pch=%i.gch}\ + %W{o*:--output-pch=%*}}%V}}}}", +@@ -58,11 +58,11 @@ along with GCC; see the file COPYING3. + %(cpp_options) %2 -o %{save-temps*:%b.ii} %{!save-temps*:%g.ii} \n}\ + cc1plus %{save-temps*|no-integrated-cpp:-fpreprocessed %{save-temps*:%b.ii} %{!save-temps*:%g.ii}}\ + %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}\ +- %(cc1_options) %2\ ++ %(cc1_options) %(ssp_default) %2\ + %{!fsyntax-only:%(invoke_as)}}}}", + CPLUSPLUS_CPP_SPEC, 0, 0}, + {".ii", "@c++-cpp-output", 0, 0, 0}, + {"@c++-cpp-output", + "%{!M:%{!MM:%{!E:\ +- cc1plus -fpreprocessed %i %(cc1_options) %2\ ++ cc1plus -fpreprocessed %i %(cc1_options) %(ssp_default) %2\ + %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, +Index: b/gcc/params.def +=================================================================== +--- a/gcc/params.def ++++ b/gcc/params.def +@@ -673,7 +673,7 @@ DEFPARAM (PARAM_INTEGER_SHARE_LIMIT, + DEFPARAM (PARAM_SSP_BUFFER_SIZE, + "ssp-buffer-size", + "The lower bound for a buffer to be considered for stack smashing protection.", +- 8, 1, 0) ++ 4, 1, 0) + + DEFPARAM (PARAM_MIN_SIZE_FOR_STACK_SHARING, + "min-size-for-stack-sharing", +Index: b/gcc/objc/lang-specs.h +=================================================================== +--- a/gcc/objc/lang-specs.h ++++ b/gcc/objc/lang-specs.h +@@ -29,9 +29,9 @@ along with GCC; see the file COPYING3. + %{traditional|traditional-cpp:\ + %eGNU Objective C no longer supports traditional compilation}\ + %{save-temps*|no-integrated-cpp:cc1obj -E %(cpp_options) -o %{save-temps*:%b.mi} %{!save-temps*:%g.mi} \n\ +- cc1obj -fpreprocessed %{save-temps*:%b.mi} %{!save-temps*:%g.mi} %(cc1_options) %{print-objc-runtime-info} %{gen-decls}}\ ++ cc1obj -fpreprocessed %{save-temps*:%b.mi} %{!save-temps*:%g.mi} %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}}\ + %{!save-temps*:%{!no-integrated-cpp:\ +- cc1obj %(cpp_unique_options) %(cc1_options) %{print-objc-runtime-info} %{gen-decls}}}\ ++ cc1obj %(cpp_unique_options) %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}}}\ + %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, + {"@objective-c-header", + "%{E|M|MM:cc1obj -E %{traditional|traditional-cpp:-traditional-cpp}\ +@@ -40,18 +40,18 @@ along with GCC; see the file COPYING3. + %{traditional|traditional-cpp:\ + %eGNU Objective C no longer supports traditional compilation}\ + %{save-temps*|no-integrated-cpp:cc1obj -E %(cpp_options) -o %{save-temps*:%b.mi} %{!save-temps*:%g.mi} \n\ +- cc1obj -fpreprocessed %b.mi %(cc1_options) %{print-objc-runtime-info} %{gen-decls}\ ++ cc1obj -fpreprocessed %b.mi %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}\ + -o %g.s %{!o*:--output-pch=%i.gch}\ + %W{o*:--output-pch=%*}%V}\ + %{!save-temps*:%{!no-integrated-cpp:\ +- cc1obj %(cpp_unique_options) %(cc1_options) %{print-objc-runtime-info} %{gen-decls}\ ++ cc1obj %(cpp_unique_options) %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}\ + -o %g.s %{!o*:--output-pch=%i.gch}\ + %W{o*:--output-pch=%*}%V}}}}}", 0, 0, 0}, + {".mi", "@objective-c-cpp-output", 0, 0, 0}, + {"@objective-c-cpp-output", +- "%{!M:%{!MM:%{!E:cc1obj -fpreprocessed %i %(cc1_options) %{print-objc-runtime-info} %{gen-decls}\ ++ "%{!M:%{!MM:%{!E:cc1obj -fpreprocessed %i %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}\ + %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, + {"@objc-cpp-output", + "%nobjc-cpp-output is deprecated; please use objective-c-cpp-output instead\n\ +- %{!M:%{!MM:%{!E:cc1obj -fpreprocessed %i %(cc1_options) %{print-objc-runtime-info} %{gen-decls}\ ++ %{!M:%{!MM:%{!E:cc1obj -fpreprocessed %i %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}\ + %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, +Index: b/gcc/objcp/lang-specs.h +=================================================================== +--- a/gcc/objcp/lang-specs.h ++++ b/gcc/objcp/lang-specs.h +@@ -36,7 +36,7 @@ along with GCC; see the file COPYING3. + %(cpp_options) %2 -o %{save-temps*:%b.mii} %{!save-temps*:%g.mii} \n}\ + cc1objplus %{save-temps*|no-integrated-cpp:-fpreprocessed %{save-temps*:%b.mii} %{!save-temps*:%g.mii}}\ + %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}\ +- %(cc1_options) %2\ ++ %(cc1_options) %(ssp_default) %2\ + -o %g.s %{!o*:--output-pch=%i.gch} %W{o*:--output-pch=%*}%V}}}", + CPLUSPLUS_CPP_SPEC, 0, 0}, + {"@objective-c++", +@@ -46,16 +46,16 @@ along with GCC; see the file COPYING3. + %(cpp_options) %2 -o %{save-temps*:%b.mii} %{!save-temps*:%g.mii} \n}\ + cc1objplus %{save-temps*|no-integrated-cpp:-fpreprocessed %{save-temps*:%b.mii} %{!save-temps*:%g.mii}}\ + %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}\ +- %(cc1_options) %2\ ++ %(cc1_options) %(ssp_default) %2\ + %{!fsyntax-only:%(invoke_as)}}}}", + CPLUSPLUS_CPP_SPEC, 0, 0}, + {".mii", "@objective-c++-cpp-output", 0, 0, 0}, + {"@objective-c++-cpp-output", + "%{!M:%{!MM:%{!E:\ +- cc1objplus -fpreprocessed %i %(cc1_options) %2\ ++ cc1objplus -fpreprocessed %i %(cc1_options) %(ssp_default) %2\ + %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, + {"@objc++-cpp-output", + "%nobjc++-cpp-output is deprecated; please use objective-c++-cpp-output instead\n\ + %{!M:%{!MM:%{!E:\ +- cc1objplus -fpreprocessed %i %(cc1_options) %2\ ++ cc1objplus -fpreprocessed %i %(cc1_options) %(ssp_default) %2\ + %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, +Index: b/gcc/doc/invoke.texi +=================================================================== +--- a/gcc/doc/invoke.texi ++++ b/gcc/doc/invoke.texi +@@ -9247,6 +9247,9 @@ + The minimum size of variables taking part in stack slot sharing when not + optimizing. The default value is 32. + ++The Alpine Linux default is "4", to increase ++the number of functions protected by the stack protector. ++ + @item max-jump-thread-duplication-stmts + Maximum number of statements allowed in a block that needs to be + duplicated when threading jumps. +@@ -10185,6 +10188,11 @@ + Like @option{-fstack-protector} but includes additional functions to + be protected --- those that have local array definitions, or have + references to local frame addresses. ++ ++NOTE: In Alpine Linux, ++@option{-fstack-protector-strong} is enabled by default for C, ++C++, ObjC, ObjC++, if none of @option{-fno-stack-protector}, ++@option{-nostdlib}, nor @option{-ffreestanding} are found. + + @item -fstack-protector-explicit + @opindex fstack-protector-explicit diff --git a/main/gcc6/002_all_default-relro.patch b/main/gcc6/002_all_default-relro.patch new file mode 100644 index 000000000..c461017dc --- /dev/null +++ b/main/gcc6/002_all_default-relro.patch @@ -0,0 +1,33 @@ +# Turn on -Wl,-z,relro,-z,now by default. + +--- + gcc/doc/invoke.texi | 3 +++ + gcc/gcc.c | 1 + + 2 files changed, 4 insertions(+), 0 deletions(-) + +Index: b/gcc/doc/invoke.texi +=================================================================== +--- a/gcc/doc/invoke.texi ++++ b/gcc/doc/invoke.texi +@@ -11424,6 +11424,9 @@ For example, @option{-Wl,-Map,output.map + linker. When using the GNU linker, you can also get the same effect with + @option{-Wl,-Map=output.map}. + ++NOTE: In Alpine Linux, for LDFLAGS, the option ++@option{-Wl,-z,relro,now} is used. To disable, use @option{-Wl,-z,norelro}. ++ + @item -u @var{symbol} + @opindex u + Pretend the symbol @var{symbol} is undefined, to force linking of +Index: b/gcc/gcc.c +=================================================================== +--- a/gcc/gcc.c ++++ b/gcc/gcc.c +@@ -890,6 +890,7 @@ proper position among the other output f + "%{flto|flto=*:% 0 + +--- + gcc/doc/invoke.texi | 6 ++++++ + gcc/c-family/c-cppbuiltin.c | 3 + + 2 files changed, 9 insertions(+), 0 deletions(-) + +Index: b/gcc/doc/invoke.texi +=================================================================== +--- a/gcc/doc/invoke.texi ++++ b/gcc/doc/invoke.texi +@@ -7840,6 +7840,12 @@ also turns on the following optimization + Please note the warning under @option{-fgcse} about + invoking @option{-O2} on programs that use computed gotos. + ++NOTE: In Alpine Linux, @option{-D_FORTIFY_SOURCE=2} is ++set by default, and is activated when @option{-O} is set to 2 or higher. ++This enables additional compile-time and run-time checks for several libc ++functions. To disable, specify either @option{-U_FORTIFY_SOURCE} or ++@option{-D_FORTIFY_SOURCE=0}. ++ + @item -O3 + @opindex O3 + Optimize yet more. @option{-O3} turns on all optimizations specified +Index: b/gcc/c-family/c-cppbuiltin.c +=================================================================== +--- a/gcc/c-family/c-cppbuiltin.c ++++ b/gcc/c-family/c-cppbuiltin.c +@@ -1176,6 +1176,10 @@ c_cpp_builtins (cpp_reader *pfile) + builtin_define_with_value ("__REGISTER_PREFIX__", REGISTER_PREFIX, 0); + builtin_define_with_value ("__USER_LABEL_PREFIX__", user_label_prefix, 0); + ++ /* Fortify Source enabled by default for optimization levels > 0 */ ++ if (optimize) ++ builtin_define_with_int_value ("_FORTIFY_SOURCE", 2); ++ + /* Misc. */ + if (flag_gnu89_inline) + cpp_define (pfile, "__GNUC_GNU_INLINE__"); diff --git a/main/gcc6/005_all_default-as-needed.patch b/main/gcc6/005_all_default-as-needed.patch new file mode 100644 index 000000000..ee4f7962a --- /dev/null +++ b/main/gcc6/005_all_default-as-needed.patch @@ -0,0 +1,241 @@ +# DP: On linux targets pass --as-needed by default to the linker, but always +# DP: link the sanitizer libraries with --no-as-needed. + +--- a/gcc/gcc.c ++++ b/gcc/gcc.c +@@ -568,8 +568,11 @@ proper position among the other output f + #ifdef LIBTSAN_EARLY_SPEC + #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS + #elif defined(HAVE_LD_STATIC_DYNAMIC) +-#define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \ +- "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \ ++#define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION "}" \ ++ " %{!static-libtsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \ ++ " -ltsan " \ ++ " %{static-libtsan:" LD_DYNAMIC_OPTION "}" \ ++ " %{!static-libtsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \ + STATIC_LIBTSAN_LIBS + #else + #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS +--- a/gcc/config/gnu-user.h ++++ b/gcc/config/gnu-user.h +@@ -124,13 +124,13 @@ + #define LIBASAN_EARLY_SPEC "%{!shared:libasan_preinit%O%s} " \ + "%{static-libasan:%{!shared:" \ + LD_STATIC_OPTION " --whole-archive -lasan --no-whole-archive " \ +- LD_DYNAMIC_OPTION "}}%{!static-libasan:-lasan}" ++ LD_DYNAMIC_OPTION "}}%{!static-libasan:%{!fuse-ld=gold:--push-state} --no-as-needed -lasan %{fuse-ld=gold:--as-needed;:--pop-state}}" + #undef LIBTSAN_EARLY_SPEC + #define LIBTSAN_EARLY_SPEC "%{static-libtsan:%{!shared:" \ + LD_STATIC_OPTION " --whole-archive -ltsan --no-whole-archive " \ +- LD_DYNAMIC_OPTION "}}%{!static-libtsan:-ltsan}" ++ LD_DYNAMIC_OPTION "}}%{!static-libtsan:%{!fuse-ld=gold:--push-state} --no-as-needed -ltsan %{fuse-ld=gold:--as-needed;:--pop-state}}" + #undef LIBLSAN_EARLY_SPEC + #define LIBLSAN_EARLY_SPEC "%{static-liblsan:%{!shared:" \ + LD_STATIC_OPTION " --whole-archive -llsan --no-whole-archive " \ +- LD_DYNAMIC_OPTION "}}%{!static-liblsan:-llsan}" ++ LD_DYNAMIC_OPTION "}}%{!static-liblsan:%{!fuse-ld=gold:--push-state} --no-as-needed -llsan %{fuse-ld=gold:--as-needed;:--pop-state}}" + #endif +Index: b/gcc/config/aarch64/aarch64-linux.h +=================================================================== +--- a/gcc/config/aarch64/aarch64-linux.h ++++ b/gcc/config/aarch64/aarch64-linux.h +@@ -36,5 +36,6 @@ + + #define LINUX_TARGET_LINK_SPEC "%{h*} \ ++ --as-needed \ + %{static:-Bstatic} \ + %{shared:-shared} \ + %{symbolic:-Bsymbolic} \ +Index: b/gcc/config/ia64/linux.h +=================================================================== +--- a/gcc/config/ia64/linux.h ++++ b/gcc/config/ia64/linux.h +@@ -58,7 +58,7 @@ do { \ + #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-ia64.so.2" + + #undef LINK_SPEC +-#define LINK_SPEC "\ ++#define LINK_SPEC " --as-needed \ + %{shared:-shared} \ + %{!shared: \ + %{!static: \ +Index: b/gcc/config/sparc/linux.h +=================================================================== +--- a/gcc/config/sparc/linux.h ++++ b/gcc/config/sparc/linux.h +@@ -86,7 +86,7 @@ extern const char *host_detect_local_cpu + #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2" + + #undef LINK_SPEC +-#define LINK_SPEC "-m elf32_sparc %{shared:-shared} \ ++#define LINK_SPEC "-m elf32_sparc --as-needed %{shared:-shared} \ + %{!mno-relax:%{!r:-relax}} \ + %{!shared: \ + %{!static: \ +Index: b/gcc/config/s390/linux.h +=================================================================== +--- a/gcc/config/s390/linux.h ++++ b/gcc/config/s390/linux.h +@@ -65,7 +65,7 @@ along with GCC; see the file COPYING3. + + #undef LINK_SPEC + #define LINK_SPEC \ +- "%{m31:-m elf_s390}%{m64:-m elf64_s390} \ ++ "%{m31:-m elf_s390}%{m64:-m elf64_s390} --as-needed \ + %{shared:-shared} \ + %{!shared: \ + %{static:-static} \ +Index: b/gcc/config/rs6000/linux64.h +=================================================================== +--- a/gcc/config/rs6000/linux64.h ++++ b/gcc/config/rs6000/linux64.h +@@ -466,12 +466,12 @@ extern int dot_symbols; + " -m elf64ppc") + #endif + +-#define LINK_OS_LINUX_SPEC32 LINK_OS_LINUX_EMUL32 " %{!shared: %{!static: \ ++#define LINK_OS_LINUX_SPEC32 LINK_OS_LINUX_EMUL32 " --as-needed %{!shared: %{!static: \ + %{rdynamic:-export-dynamic} \ + -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "}} \ + %(link_os_extra_spec32)" + +-#define LINK_OS_LINUX_SPEC64 LINK_OS_LINUX_EMUL64 " %{!shared: %{!static: \ ++#define LINK_OS_LINUX_SPEC64 LINK_OS_LINUX_EMUL64 " --as-needed %{!shared: %{!static: \ + %{rdynamic:-export-dynamic} \ + -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "}} \ + %(link_os_extra_spec64)" +Index: b/gcc/config/rs6000/sysv4.h +=================================================================== +--- a/gcc/config/rs6000/sysv4.h ++++ b/gcc/config/rs6000/sysv4.h +@@ -784,7 +784,7 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEF + CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER, \ + MUSL_DYNAMIC_LINKER) + +-#define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \ ++#define LINK_OS_LINUX_SPEC "-m elf32ppclinux --as-needed %{!shared: %{!static: \ + %{rdynamic:-export-dynamic} \ + -dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}" + +Index: b/gcc/config/i386/gnu-user64.h +=================================================================== +--- a/gcc/config/i386/gnu-user64.h ++++ b/gcc/config/i386/gnu-user64.h +@@ -57,5 +57,6 @@ see the files COPYING3 and COPYING.RUNTI + %{" SPEC_32 ":-m " GNU_USER_LINK_EMULATION32 "} \ + %{" SPEC_X32 ":-m " GNU_USER_LINK_EMULATIONX32 "} \ ++ --as-needed \ + %{shared:-shared} \ + %{!shared: \ + %{!static: \ +Index: b/gcc/config/i386/gnu-user.h +=================================================================== +--- a/gcc/config/i386/gnu-user.h ++++ b/gcc/config/i386/gnu-user.h +@@ -74,7 +74,7 @@ along with GCC; see the file COPYING3. + { "link_emulation", GNU_USER_LINK_EMULATION },\ + { "dynamic_linker", GNU_USER_DYNAMIC_LINKER } + +-#define GNU_USER_TARGET_LINK_SPEC "-m %(link_emulation) %{shared:-shared} \ ++#define GNU_USER_TARGET_LINK_SPEC "-m %(link_emulation) --as-needed %{shared:-shared} \ + %{!shared: \ + %{!static: \ + %{rdynamic:-export-dynamic} \ +Index: b/gcc/config/alpha/linux-elf.h +=================================================================== +--- a/gcc/config/alpha/linux-elf.h ++++ b/gcc/config/alpha/linux-elf.h +@@ -37,7 +37,7 @@ along with GCC; see the file COPYING3. + + #define ELF_DYNAMIC_LINKER GNU_USER_DYNAMIC_LINKER + +-#define LINK_SPEC "-m elf64alpha %{G*} %{relax:-relax} \ ++#define LINK_SPEC "-m elf64alpha --as-needed %{G*} %{relax:-relax} \ + %{O*:-O3} %{!O*:-O1} \ + %{shared:-shared} \ + %{!shared: \ +Index: b/gcc/config/arm/linux-elf.h +=================================================================== +--- a/gcc/config/arm/linux-elf.h ++++ b/gcc/config/arm/linux-elf.h +@@ -73,5 +73,6 @@ + %{!shared:-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}} \ + -X \ ++ --as-needed \ + %{mbig-endian:-EB} %{mlittle-endian:-EL}" \ + SUBTARGET_EXTRA_LINK_SPEC + +Index: b/gcc/config/mips/gnu-user.h +=================================================================== +--- a/gcc/config/mips/gnu-user.h ++++ b/gcc/config/mips/gnu-user.h +@@ -55,6 +55,7 @@ along with GCC; see the file COPYING3. + #undef GNU_USER_TARGET_LINK_SPEC + #define GNU_USER_TARGET_LINK_SPEC "\ + %{G*} %{EB} %{EL} %{mips*} %{shared} \ ++ -as-needed \ + %{!shared: \ + %{!static: \ + %{rdynamic:-export-dynamic} \ +Index: b/libjava/Makefile.am +=================================================================== +--- a/libjava/Makefile.am ++++ b/libjava/Makefile.am +@@ -627,14 +631,14 @@ + rm .libs/libgcj_bc.so; \ + mv .libs/libgcj_bc.so.1.0.0 .libs/libgcj_bc.so; \ + $(libgcj_bc_dummy_LINK) -xc /dev/null -Wl,-soname,libgcj_bc.so.1 \ +- -o .libs/libgcj_bc.so.1.0.0 -lgcj || exit; \ ++ -o .libs/libgcj_bc.so.1.0.0 -Wl,--no-as-needed -lgcj || exit; \ + rm .libs/libgcj_bc.so.1; \ + $(LN_S) libgcj_bc.so.1.0.0 .libs/libgcj_bc.so.1 + + ## This rule creates the libgcj_bc library that is actually installed. + install/libgcj_bc.la: $(libgcj_bc_la_OBJECTS) $(libgcj_bc_la_DEPENDENCIES) install/$(am__dirstamp) + $(libgcj_bc_la_LINK) $(am_libgcj_bc_la_rpath) $(libgcj_bc_la_LDFLAGS) \ +- $(libgcj_bc_la_OBJECTS) $(libgcj_bc_la_LIBADD) $(LIBS) ++ $(libgcj_bc_la_OBJECTS) $(libgcj_bc_la_LIBADD) $(LIBS) -Wl,--no-as-needed -lgcj + + ## Note that property_files is defined in sources.am. + propertyo_files = $(patsubst classpath/resource/%,%,$(addsuffix .lo,$(property_files))) +@@ -762,7 +766,7 @@ + rm $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so; \ + mv $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1.0.0 $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so; \ + $(libgcj_bc_dummy_LINK) -xc /dev/null -Wl,-soname,libgcj_bc.so.1 \ +- -o $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1.0.0 -lgcj || exit; \ ++ -o $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1.0.0 -Wl,--no-as-needed -lgcj || exit; \ + rm $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1; \ + $(LN_S) libgcj_bc.so.1.0.0 $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1; \ + rm $(DESTDIR)$(toolexeclibdir)/libgcj_bc.la; + +Index: b/libjava/Makefile.in +=================================================================== +--- a/libjava/Makefile.in ++++ b/libjava/Makefile.in +@@ -10644,13 +10648,13 @@ + rm .libs/libgcj_bc.so; \ + mv .libs/libgcj_bc.so.1.0.0 .libs/libgcj_bc.so; \ + $(libgcj_bc_dummy_LINK) -xc /dev/null -Wl,-soname,libgcj_bc.so.1 \ +- -o .libs/libgcj_bc.so.1.0.0 -lgcj || exit; \ ++ -o .libs/libgcj_bc.so.1.0.0 -Wl,--no-as-needed -lgcj || exit; \ + rm .libs/libgcj_bc.so.1; \ + $(LN_S) libgcj_bc.so.1.0.0 .libs/libgcj_bc.so.1 + + install/libgcj_bc.la: $(libgcj_bc_la_OBJECTS) $(libgcj_bc_la_DEPENDENCIES) install/$(am__dirstamp) + $(libgcj_bc_la_LINK) $(am_libgcj_bc_la_rpath) $(libgcj_bc_la_LDFLAGS) \ +- $(libgcj_bc_la_OBJECTS) $(libgcj_bc_la_LIBADD) $(LIBS) ++ $(libgcj_bc_la_OBJECTS) $(libgcj_bc_la_LIBADD) $(LIBS) -Wl,--no-as-needed -lgcj + + $(propertyo_files): %.lo: classpath/resource/% + $(mkinstalldirs) `dirname $@`; \ +@@ -12494,7 +12498,7 @@ + @USE_LIBGCJ_BC_TRUE@ rm $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so; \ + @USE_LIBGCJ_BC_TRUE@ mv $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1.0.0 $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so; \ + @USE_LIBGCJ_BC_TRUE@ $(libgcj_bc_dummy_LINK) -xc /dev/null -Wl,-soname,libgcj_bc.so.1 \ +-@USE_LIBGCJ_BC_TRUE@ -o $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1.0.0 -lgcj || exit; \ ++@USE_LIBGCJ_BC_TRUE@ -o $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1.0.0 -Wl,--no-as-needed -lgcj || exit; \ + @USE_LIBGCJ_BC_TRUE@ rm $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1; \ + @USE_LIBGCJ_BC_TRUE@ $(LN_S) libgcj_bc.so.1.0.0 $(DESTDIR)$(toolexeclibdir)/libgcj_bc.so.1; \ + @USE_LIBGCJ_BC_TRUE@ rm $(DESTDIR)$(toolexeclibdir)/libgcj_bc.la; + diff --git a/main/gcc6/011_all_default-warn-format-security.patch b/main/gcc6/011_all_default-warn-format-security.patch new file mode 100644 index 000000000..a58383a8e --- /dev/null +++ b/main/gcc6/011_all_default-warn-format-security.patch @@ -0,0 +1,43 @@ +Enable -Wformat and -Wformat-security by default. + + +--- a/gcc/c-family/c.opt ++++ b/gcc/c-family/c.opt +@@ -412,7 +412,7 @@ C ObjC C++ ObjC++ Var(warn_format_nonliteral) Warning LangEnabledBy(C ObjC C++ O + Warn about format strings that are not literals + + Wformat-security +-C ObjC C++ ObjC++ Var(warn_format_security) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0) ++C ObjC C++ ObjC++ Var(warn_format_security) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0) + Warn about possible security problems with format functions + + Wformat-y2k +@@ -424,7 +424,7 @@ C ObjC C++ ObjC++ Var(warn_format_zero_length) Warning LangEnabledBy(C ObjC C++ + Warn about zero-length formats + + Wformat= +-C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0) ++C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0) + Warn about printf/scanf/strftime/strfmon format string anomalies + + Wignored-qualifiers +--- a/gcc/doc/gcc.info ++++ b/gcc/doc/gcc.info +@@ -3451,6 +3451,8 @@ compiler warns that an unrecognized option is present. + '-Wno-format-contains-nul', '-Wno-format-extra-args', and + '-Wno-format-zero-length'. '-Wformat' is enabled by '-Wall'. + ++ This option is enabled by default in Alpine Linux. ++ + '-Wno-format-contains-nul' + If '-Wformat' is specified, do not warn about format strings + that contain NUL bytes. +@@ -3496,6 +3498,8 @@ compiler warns that an unrecognized option is present. + future warnings may be added to '-Wformat-security' that are + not included in '-Wformat-nonliteral'.) + ++ This option is enabled by default in Alpine Linux. ++ + '-Wformat-y2k' + If '-Wformat' is specified, also warn about 'strftime' formats + that may yield only a two-digit year. diff --git a/main/gcc6/012_all_default-warn-trampolines.patch b/main/gcc6/012_all_default-warn-trampolines.patch new file mode 100644 index 000000000..9ab4378d4 --- /dev/null +++ b/main/gcc6/012_all_default-warn-trampolines.patch @@ -0,0 +1,25 @@ +Enable -Wtrampolines by default. + + +--- a/gcc/common.opt ++++ b/gcc/common.opt +@@ -648,7 +648,7 @@ Common Var(warn_system_headers) Warning + Do not suppress warnings from system headers + + Wtrampolines +-Common Var(warn_trampolines) Warning ++Common Var(warn_trampolines) Init(1) Warning + Warn whenever a trampoline is generated + + Wtype-limits +--- a/gcc/doc/gcc.info ++++ b/gcc/doc/gcc.info +@@ -4021,6 +4021,8 @@ compiler warns that an unrecognized option is present. + and thus requires the stack to be made executable in order for the + program to work properly. + ++ This warning is enabled by default in Gentoo. ++ + '-Wfloat-equal' + Warn if floating-point values are used in equality comparisons. + diff --git a/main/gcc6/020_all_msgfmt-libstdc++-link.patch b/main/gcc6/020_all_msgfmt-libstdc++-link.patch new file mode 100644 index 000000000..a70ea50a0 --- /dev/null +++ b/main/gcc6/020_all_msgfmt-libstdc++-link.patch @@ -0,0 +1,39 @@ +Ensure that msgfmt doesn't encounter problems during gcc bootstrapping. + +Solves error messages like the following: + +msgfmt: /var/tmp/portage/sys-devel/gcc-4.1.2/work/build/./gcc/libgcc_s.so.1: version `GCC_4.2.0' not found (required by /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/libstdc++.so.6) + +The libgcc_s.so used during build doesn't satisfy the needs of the +libstdc++.so that msgfmt is linked against. On the other hand, msgfmt +is used as a stand-alone application here, and what library it uses +behind the scenes is of no concern to the gcc build process. +Therefore, simply invoking it "as usual", i.e. without any special +library path, will make it work as expected here. + +2011-09-19 Martin von Gagern + +References: +https://bugs.gentoo.org/372377 +https://bugs.gentoo.org/295480 + +--- gcc-4.1.2.orig/libstdc++-v3/po/Makefile.am ++++ gcc-4.1.2/libstdc++-v3/po/Makefile.am +@@ -39,6 +39,7 @@ MSGFMT = msgfmt + EXTRA_DIST = string_literals.cc POTFILES.in $(PACKAGE).pot $(LOCALE_IN) + + .po.mo: ++ env --unset=LD_LIBRARY_PATH \ + $(MSGFMT) -o $@ $< + + all-local: all-local-$(USE_NLS) +--- gcc-4.1.2.orig/libstdc++-v3/po/Makefile.in ++++ gcc-4.1.2/libstdc++-v3/po/Makefile.in +@@ -419,6 +419,7 @@ uninstall-am: uninstall-info-am + + + .po.mo: ++ env --unset=LD_LIBRARY_PATH \ + $(MSGFMT) -o $@ $< + + all-local: all-local-$(USE_NLS) diff --git a/main/gcc6/050_all_libiberty-asprintf.patch b/main/gcc6/050_all_libiberty-asprintf.patch new file mode 100644 index 000000000..bee0c4c23 --- /dev/null +++ b/main/gcc6/050_all_libiberty-asprintf.patch @@ -0,0 +1,18 @@ +2008-07-25 Magnus Granberg + + * include/libiberty.h (asprintf): Don't declare if defined as a macro + +--- a/include/libiberty.h ++++ b/include/libiberty.h +@@ -609,8 +609,11 @@ extern int pwait (int, int *, int); + /* Like sprintf but provides a pointer to malloc'd storage, which must + be freed by the caller. */ + ++/* asprintf may be declared as a macro by glibc with __USE_FORTIFY_LEVEL. */ ++#ifndef asprintf + extern int asprintf (char **, const char *, ...) ATTRIBUTE_PRINTF_2; + #endif ++#endif + + #if !HAVE_DECL_VASPRINTF + /* Like vsprintf but provides a pointer to malloc'd storage, which diff --git a/main/gcc6/051_all_libiberty-pic.patch b/main/gcc6/051_all_libiberty-pic.patch new file mode 100644 index 000000000..b6160a730 --- /dev/null +++ b/main/gcc6/051_all_libiberty-pic.patch @@ -0,0 +1,10 @@ +--- a/libiberty/Makefile.in ++++ b/libiberty/Makefile.in +@@ -246,6 +246,7 @@ $(TARGETLIB): $(REQUIRED_OFILES) $(EXTRA_OFILES) $(LIBOBJS) + $(AR) $(AR_FLAGS) $(TARGETLIB) \ + $(REQUIRED_OFILES) $(EXTRA_OFILES) $(LIBOBJS); \ + $(RANLIB) $(TARGETLIB); \ ++ cp $(TARGETLIB) ../ ; \ + cd ..; \ + else true; fi + diff --git a/main/gcc6/053_all_libitm-no-fortify-source.patch b/main/gcc6/053_all_libitm-no-fortify-source.patch new file mode 100644 index 000000000..5ab15afc3 --- /dev/null +++ b/main/gcc6/053_all_libitm-no-fortify-source.patch @@ -0,0 +1,27 @@ +https://bugs.gentoo.org/508852 +https://gcc.gnu.org/PR61164 + +2014-04-27 Magnus Granberg + + #508852 + * libitm/configure.tgt: Disable FORTIFY + +--- a/libitm/configure.tgt ++++ b/libitm/configure.tgt +@@ -43,6 +43,16 @@ if test "$gcc_cv_have_tls" = yes ; then + esac + fi + ++# FIXME: error: inlining failed in call to always_inline ++# ‘int vfprintf(FILE*, const char*, __va_list_tag*)’ ++# : function body can be overwritten at link time ++# Disable Fortify in libitm for now. #508852 ++case "${target}" in ++ *-*-linux*) ++ XCFLAGS="${XCFLAGS} -U_FORTIFY_SOURCE" ++ ;; ++esac ++ + # Map the target cpu to an ARCH sub-directory. At the same time, + # work out any special compilation flags as necessary. + case "${target_cpu}" in diff --git a/main/gcc6/067_all_gcc-poison-system-directories.patch b/main/gcc6/067_all_gcc-poison-system-directories.patch new file mode 100644 index 000000000..103671617 --- /dev/null +++ b/main/gcc6/067_all_gcc-poison-system-directories.patch @@ -0,0 +1,194 @@ +http://cgit.openembedded.org/openembedded-core/plain/meta/recipes-devtools/gcc/gcc-6.1/0010-gcc-poison-system-directories.patch + +From d76250323dad69212c958e4857a98d99ab51a39e Mon Sep 17 00:00:00 2001 +From: Khem Raj +Date: Fri, 29 Mar 2013 08:59:00 +0400 +Subject: [PATCH 10/46] gcc: poison-system-directories + +Signed-off-by: Khem Raj + +Upstream-Status: Inappropriate [distribution: codesourcery] +--- + gcc/common.opt | 4 ++++ + gcc/config.in | 6 ++++++ + gcc/configure | 16 ++++++++++++++++ + gcc/configure.ac | 10 ++++++++++ + gcc/doc/invoke.texi | 9 +++++++++ + gcc/gcc.c | 2 ++ + gcc/incpath.c | 19 +++++++++++++++++++ + 7 files changed, 66 insertions(+) + +diff --git a/gcc/common.opt b/gcc/common.opt +index 67048db..733185c 100644 +--- a/gcc/common.opt ++++ b/gcc/common.opt +@@ -659,6 +659,10 @@ Wreturn-local-addr + Common Var(warn_return_local_addr) Init(1) Warning + Warn about returning a pointer/reference to a local or temporary variable. + ++Wpoison-system-directories ++Common Var(flag_poison_system_directories) Init(1) Warning ++Warn for -I and -L options using system directories if cross compiling ++ + Wshadow + Common Var(warn_shadow) Warning + Warn when one local variable shadows another. +diff --git a/gcc/config.in b/gcc/config.in +index 115cb61..105b30f 100644 +--- a/gcc/config.in ++++ b/gcc/config.in +@@ -187,6 +187,12 @@ + #endif + + ++/* Define to warn for use of native system header directories */ ++#ifndef USED_FOR_TARGET ++#undef ENABLE_POISON_SYSTEM_DIRECTORIES ++#endif ++ ++ + /* Define if you want all operations on RTL (the basic data structure of the + optimizer and back end) to be checked for dynamic type safety at runtime. + This is quite expensive. */ +diff --git a/gcc/configure b/gcc/configure +index 1c6e340..8f83152 100755 +--- a/gcc/configure ++++ b/gcc/configure +@@ -942,6 +942,7 @@ with_system_zlib + enable_maintainer_mode + enable_link_mutex + enable_version_specific_runtime_libs ++enable_poison_system_directories + enable_plugin + enable_host_shared + enable_libquadmath_support +@@ -1681,6 +1682,8 @@ Optional Features: + --enable-version-specific-runtime-libs + specify that runtime libraries should be installed + in a compiler-specific directory ++ --enable-poison-system-directories ++ warn for use of native system header directories + --enable-plugin enable plugin support + --enable-host-shared build host code as shared libraries + --disable-libquadmath-support +@@ -28908,6 +28911,19 @@ if test "${enable_version_specific_runtime_libs+set}" = set; then : + fi + + ++# Check whether --enable-poison-system-directories was given. ++if test "${enable_poison_system_directories+set}" = set; then : ++ enableval=$enable_poison_system_directories; ++else ++ enable_poison_system_directories=no ++fi ++ ++if test "x${enable_poison_system_directories}" = "xyes"; then ++ ++$as_echo "#define ENABLE_POISON_SYSTEM_DIRECTORIES 1" >>confdefs.h ++ ++fi ++ + # Substitute configuration variables + + +diff --git a/gcc/configure.ac b/gcc/configure.ac +index 6c1dcd9..0fccaef 100644 +--- a/gcc/configure.ac ++++ b/gcc/configure.ac +@@ -5861,6 +5861,16 @@ AC_ARG_ENABLE(version-specific-runtime-libs, + [specify that runtime libraries should be + installed in a compiler-specific directory])]) + ++AC_ARG_ENABLE([poison-system-directories], ++ AS_HELP_STRING([--enable-poison-system-directories], ++ [warn for use of native system header directories]),, ++ [enable_poison_system_directories=no]) ++if test "x${enable_poison_system_directories}" = "xyes"; then ++ AC_DEFINE([ENABLE_POISON_SYSTEM_DIRECTORIES], ++ [1], ++ [Define to warn for use of native system header directories]) ++fi ++ + # Substitute configuration variables + AC_SUBST(subdirs) + AC_SUBST(srcdir) +diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi +index 821f8fd..8bb49e7 100644 +--- a/gcc/doc/invoke.texi ++++ b/gcc/doc/invoke.texi +@@ -284,6 +284,7 @@ Objective-C and Objective-C++ Dialects}. + -Wparentheses -Wno-pedantic-ms-format @gol + -Wplacement-new -Wplacement-new=@var{n} @gol + -Wpointer-arith -Wno-pointer-to-int-cast @gol ++-Wno-poison-system-directories @gol + -Wno-pragmas -Wredundant-decls -Wno-return-local-addr @gol + -Wreturn-type -Wsequence-point -Wshadow -Wno-shadow-ivar @gol + -Wshift-overflow -Wshift-overflow=@var{n} @gol +@@ -4723,6 +4724,14 @@ made up of data only and thus requires no special treatment. But, for + most targets, it is made up of code and thus requires the stack to be + made executable in order for the program to work properly. + ++@item -Wno-poison-system-directories ++@opindex Wno-poison-system-directories ++Do not warn for @option{-I} or @option{-L} options using system ++directories such as @file{/usr/include} when cross compiling. This ++option is intended for use in chroot environments when such ++directories contain the correct headers and libraries for the target ++system rather than the host. ++ + @item -Wfloat-equal + @opindex Wfloat-equal + @opindex Wno-float-equal +diff --git a/gcc/gcc.c b/gcc/gcc.c +index 1af5920..4cfef7f 100644 +--- a/gcc/gcc.c ++++ b/gcc/gcc.c +@@ -1017,6 +1017,8 @@ proper position among the other output files. */ + "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \ + "%X %{o*} %{e*} %{N} %{n} %{r}\ + %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} \ ++ %{Wno-poison-system-directories:--no-poison-system-directories} \ ++ %{Werror=poison-system-directories:--error-poison-system-directories} \ + %{static:} %{L*} %(mfwrap) %(link_libgcc) " \ + VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o " CHKP_SPEC " \ + %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\ +diff --git a/gcc/incpath.c b/gcc/incpath.c +index ea40f4a..856da41 100644 +--- a/gcc/incpath.c ++++ b/gcc/incpath.c +@@ -26,6 +26,7 @@ + #include "intl.h" + #include "incpath.h" + #include "cppdefault.h" ++#include "diagnostic-core.h" + + /* Microsoft Windows does not natively support inodes. + VMS has non-numeric inodes. */ +@@ -381,6 +382,24 @@ merge_include_chains (const char *sysroot, cpp_reader *pfile, int verbose) + } + fprintf (stderr, _("End of search list.\n")); + } ++ ++#ifdef ENABLE_POISON_SYSTEM_DIRECTORIES ++ if (flag_poison_system_directories) ++ { ++ struct cpp_dir *p; ++ ++ for (p = heads[QUOTE]; p; p = p->next) ++ { ++ if ((!strncmp (p->name, "/usr/include", 12)) ++ || (!strncmp (p->name, "/usr/local/include", 18)) ++ || (!strncmp (p->name, "/usr/X11R6/include", 18))) ++ warning (OPT_Wpoison_system_directories, ++ "include location \"%s\" is unsafe for " ++ "cross-compilation", ++ p->name); ++ } ++ } ++#endif + } + + /* Use given -I paths for #include "..." but not #include <...>, and +-- +2.8.2 + diff --git a/main/gcc6/090_all_pr55930-dependency-tracking.patch b/main/gcc6/090_all_pr55930-dependency-tracking.patch new file mode 100644 index 000000000..a8743e08c --- /dev/null +++ b/main/gcc6/090_all_pr55930-dependency-tracking.patch @@ -0,0 +1,18 @@ +libatomic build failure if configured with --disable-dependency-tracking +load_n.c:115:1: fatal error: opening dependency file .deps/load_1_.lo.Ppo: No such file or directory + +https://bugs.gentoo.org/463463 +http://gcc.gnu.org/PR55930 + +--- a/libatomic/Makefile.in ++++ b/libatomic/Makefile.in +@@ -298,7 +298,8 @@ PAT_N = $(word 2,$(PAT_SPLIT)) + PAT_S = $(word 3,$(PAT_SPLIT)) + IFUNC_DEF = -DIFUNC_ALT=$(PAT_S) + IFUNC_OPT = $(word $(PAT_S),$(IFUNC_OPTIONS)) +-M_DEPS = -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo ++@AMDEP_TRUE@M_DEPS = -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo ++@AMDEP_FALSE@M_DEPS = + M_SIZE = -DN=$(PAT_N) + M_IFUNC = $(if $(PAT_S),$(IFUNC_DEF) $(IFUNC_OPT)) + M_FILE = $(PAT_BASE)_n.c diff --git a/main/gcc6/201-cilkrts.patch b/main/gcc6/201-cilkrts.patch new file mode 100644 index 000000000..4aac10d6d --- /dev/null +++ b/main/gcc6/201-cilkrts.patch @@ -0,0 +1,59 @@ +From 594e3c1ab576daddeb86015efc8b1677020b1878 Mon Sep 17 00:00:00 2001 +From: Szabolcs Nagy +Date: Sat, 24 Oct 2015 20:39:30 +0000 +Subject: [PATCH 1/6] cilkrts + +--- + libcilkrts/runtime/os-unix.c | 22 +++++++--------------- + 1 file changed, 7 insertions(+), 15 deletions(-) + +diff --git a/libcilkrts/runtime/os-unix.c b/libcilkrts/runtime/os-unix.c +index cb582dd..e43d7d5 100644 +--- a/libcilkrts/runtime/os-unix.c ++++ b/libcilkrts/runtime/os-unix.c +@@ -51,6 +51,7 @@ + #if defined __linux__ + # include + # include ++# include + #elif defined __APPLE__ + # include + // Uses sysconf(_SC_NPROCESSORS_ONLN) in verbose output +@@ -400,28 +401,19 @@ COMMON_SYSDEP void __cilkrts_sleep(void) + + COMMON_SYSDEP void __cilkrts_yield(void) + { +-#if __APPLE__ || __FreeBSD__ || __VXWORKS__ +- // On MacOS, call sched_yield to yield quantum. I'm not sure why we +- // don't do this on Linux also. +- sched_yield(); +-#elif defined(__DragonFly__) +- // On DragonFly BSD, call sched_yield to yield quantum. +- sched_yield(); +-#elif defined(__MIC__) ++#if defined(__MIC__) + // On MIC, pthread_yield() really trashes things. Arch's measurements + // showed that calling _mm_delay_32() (or doing nothing) was a better + // option. Delaying 1024 clock cycles is a reasonable compromise between + // giving up the processor and latency starting up when work becomes + // available + _mm_delay_32(1024); +-#elif defined(__ANDROID__) || (defined(__sun__) && defined(__svr4__)) +- // On Android and Solaris, call sched_yield to yield quantum. I'm not +- // sure why we don't do this on Linux also. +- sched_yield(); +-#else +- // On Linux, call pthread_yield (which in turn will call sched_yield) +- // to yield quantum. ++#elif defined(__sun__) && !defined(__svr4__) ++ // On old SunOS call pthread_yield to yield a quantum. + pthread_yield(); ++#else ++ // On other platforms call sched_yield to yield a quantum. ++ sched_yield(); + #endif + } + +-- +2.8.1 + diff --git a/main/gcc6/203-libgcc_s.patch b/main/gcc6/203-libgcc_s.patch new file mode 100644 index 000000000..c74351c71 --- /dev/null +++ b/main/gcc6/203-libgcc_s.patch @@ -0,0 +1,56 @@ +From 9e3eab51e518018d9d99b3123598b1e2322a6af3 Mon Sep 17 00:00:00 2001 +From: Szabolcs Nagy +Date: Sat, 24 Oct 2015 20:09:53 +0000 +Subject: [PATCH 3/6] libgcc_s + +--- + gcc/config/i386/i386.c | 4 ++-- + libgcc/config/i386/cpuinfo.c | 6 +++--- + libgcc/config/i386/t-linux | 2 +- + 3 files changed, 6 insertions(+), 6 deletions(-) + +diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c +index 3d044e8..82523e1 100644 +--- a/gcc/config/i386/i386.c ++++ b/gcc/config/i386/i386.c +@@ -40269,10 +40269,10 @@ ix86_expand_builtin (tree exp, rtx target, rtx subtarget, + { + case IX86_BUILTIN_CPU_INIT: + { +- /* Make it call __cpu_indicator_init in libgcc. */ ++ /* Make it call __cpu_indicator_init_local in libgcc.a. */ + tree call_expr, fndecl, type; + type = build_function_type_list (integer_type_node, NULL_TREE); +- fndecl = build_fn_decl ("__cpu_indicator_init", type); ++ fndecl = build_fn_decl ("__cpu_indicator_init_local", type); + call_expr = build_call_expr (fndecl, 0); + return expand_expr (call_expr, target, mode, EXPAND_NORMAL); + } +diff --git a/libgcc/config/i386/cpuinfo.c b/libgcc/config/i386/cpuinfo.c +index 8c2248d..6c82f15 100644 +--- a/libgcc/config/i386/cpuinfo.c ++++ b/libgcc/config/i386/cpuinfo.c +@@ -485,7 +485,7 @@ __cpu_indicator_init (void) + return 0; + } + +-#if defined SHARED && defined USE_ELF_SYMVER +-__asm__ (".symver __cpu_indicator_init, __cpu_indicator_init@GCC_4.8.0"); +-__asm__ (".symver __cpu_model, __cpu_model@GCC_4.8.0"); ++#ifndef SHARED ++int __cpu_indicator_init_local (void) ++ __attribute__ ((weak, alias ("__cpu_indicator_init"))); + #endif +diff --git a/libgcc/config/i386/t-linux b/libgcc/config/i386/t-linux +index 11bb46e..4f47f7b 100644 +--- a/libgcc/config/i386/t-linux ++++ b/libgcc/config/i386/t-linux +@@ -3,4 +3,4 @@ + # t-slibgcc-elf-ver and t-linux + SHLIB_MAPFILES = libgcc-std.ver $(srcdir)/config/i386/libgcc-glibc.ver + +-HOST_LIBGCC2_CFLAGS += -mlong-double-80 -DUSE_ELF_SYMVER ++HOST_LIBGCC2_CFLAGS += -mlong-double-80 +-- +2.8.1 + diff --git a/main/gcc6/204-linux_libc_has_function.patch b/main/gcc6/204-linux_libc_has_function.patch new file mode 100644 index 000000000..2dcedc3a7 --- /dev/null +++ b/main/gcc6/204-linux_libc_has_function.patch @@ -0,0 +1,25 @@ +From edec78452d693fb524daa9a6efd45c850b27b25c Mon Sep 17 00:00:00 2001 +From: Szabolcs Nagy +Date: Fri, 6 Nov 2015 23:59:20 +0000 +Subject: [PATCH 4/6] linux_libc_has_function + +--- + gcc/config/linux.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/gcc/config/linux.c b/gcc/config/linux.c +index 250296b..16c3768 100644 +--- a/gcc/config/linux.c ++++ b/gcc/config/linux.c +@@ -26,7 +26,7 @@ along with GCC; see the file COPYING3. If not see + bool + linux_libc_has_function (enum function_class fn_class) + { +- if (OPTION_GLIBC) ++ if (OPTION_GLIBC || OPTION_MUSL) + return true; + if (OPTION_BIONIC) + if (fn_class == function_c94 +-- +2.8.1 + diff --git a/main/gcc6/205-nopie.patch b/main/gcc6/205-nopie.patch new file mode 100644 index 000000000..e3da94d10 --- /dev/null +++ b/main/gcc6/205-nopie.patch @@ -0,0 +1,75 @@ +From b6015aca9c9cc83739fd0ed637a835119b2c4e34 Mon Sep 17 00:00:00 2001 +From: Szabolcs Nagy +Date: Sat, 7 Nov 2015 02:08:05 +0000 +Subject: [PATCH 5/6] nopie + +--- + gcc/configure | 27 +++++++++++++++++++++++++++ + gcc/configure.ac | 13 +++++++++++++ + 2 files changed, 40 insertions(+) + +diff --git a/gcc/configure b/gcc/configure +index 1c6e340..7e8b5d6 100755 +--- a/gcc/configure ++++ b/gcc/configure +@@ -29390,6 +29390,33 @@ fi + $as_echo "$gcc_cv_no_pie" >&6; } + if test "$gcc_cv_no_pie" = "yes"; then + NO_PIE_FLAG="-no-pie" ++else ++ # Check if -nopie works. ++ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -nopie option" >&5 ++$as_echo_n "checking for -nopie option... " >&6; } ++if test "${gcc_cv_nopie+set}" = set; then : ++ $as_echo_n "(cached) " >&6 ++else ++ saved_LDFLAGS="$LDFLAGS" ++ LDFLAGS="$LDFLAGS -nopie" ++ cat confdefs.h - <<_ACEOF >conftest.$ac_ext ++/* end confdefs.h. */ ++int main(void) {return 0;} ++_ACEOF ++if ac_fn_cxx_try_link "$LINENO"; then : ++ gcc_cv_nopie=yes ++else ++ gcc_cv_nopie=no ++fi ++rm -f core conftest.err conftest.$ac_objext \ ++ conftest$ac_exeext conftest.$ac_ext ++ LDFLAGS="$saved_LDFLAGS" ++fi ++{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_nopie" >&5 ++$as_echo "$gcc_cv_nopie" >&6; } ++ if test "$gcc_cv_nopie" = "yes"; then ++ NO_PIE_FLAG="-nopie" ++ fi + fi + + +diff --git a/gcc/configure.ac b/gcc/configure.ac +index 6c1dcd9..0ca7647 100644 +--- a/gcc/configure.ac ++++ b/gcc/configure.ac +@@ -6098,6 +6098,19 @@ AC_CACHE_CHECK([for -no-pie option], + LDFLAGS="$saved_LDFLAGS"]) + if test "$gcc_cv_no_pie" = "yes"; then + NO_PIE_FLAG="-no-pie" ++else ++ # Check if -nopie works. ++ AC_CACHE_CHECK([for -nopie option], ++ [gcc_cv_nopie], ++ [saved_LDFLAGS="$LDFLAGS" ++ LDFLAGS="$LDFLAGS -nopie" ++ AC_LINK_IFELSE([int main(void) {return 0;}], ++ [gcc_cv_nopie=yes], ++ [gcc_cv_nopie=no]) ++ LDFLAGS="$saved_LDFLAGS"]) ++ if test "$gcc_cv_nopie" = "yes"; then ++ NO_PIE_FLAG="-nopie" ++ fi + fi + AC_SUBST([NO_PIE_FLAG]) + +-- +2.8.1 + diff --git a/main/gcc6/207-static-pie.patch b/main/gcc6/207-static-pie.patch new file mode 100644 index 000000000..9355c584b --- /dev/null +++ b/main/gcc6/207-static-pie.patch @@ -0,0 +1,40 @@ +diff --git a/gcc/config/gnu-user.h b/gcc/config/gnu-user.h +index b0bf40a..d4b56fe 100644 +--- a/gcc/config/gnu-user.h ++++ b/gcc/config/gnu-user.h +@@ -51,10 +51,10 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see + #if defined HAVE_LD_PIE + #define GNU_USER_TARGET_STARTFILE_SPEC \ + "%{!shared: %{pg|p|profile:gcrt1.o%s;: \ +- %{" PIE_SPEC ":Scrt1.o%s} %{" NO_PIE_SPEC ":crt1.o%s}}} \ +- crti.o%s %{static:crtbeginT.o%s;: %{shared:crtbeginS.o%s} \ ++ %{" PIE_SPEC ":%{static:rcrt1.o%s;:Scrt1.o%s}} %{" NO_PIE_SPEC ":crt1.o%s}}} \ ++ crti.o%s %{shared:crtbeginS.o%s;: \ + %{" PIE_SPEC ":crtbeginS.o%s} \ +- %{" NO_PIE_SPEC ":crtbegin.o%s}} \ ++ %{" NO_PIE_SPEC ":%{static:crtbeginT.o%s;:crtbegin.o%s}}} \ + %{fvtable-verify=none:%s; \ + fvtable-verify=preinit:vtv_start_preinit.o%s; \ + fvtable-verify=std:vtv_start.o%s} \ +diff --git a/gcc/gcc.c b/gcc/gcc.c +index 0208d61..731564e 100644 +--- a/gcc/gcc.c ++++ b/gcc/gcc.c +@@ -870,7 +870,7 @@ proper position among the other output files. */ + #endif + + #ifdef ENABLE_DEFAULT_PIE +-#define NO_PIE_SPEC "no-pie|static" ++#define NO_PIE_SPEC "no-pie" + #define PIE_SPEC NO_PIE_SPEC "|r|shared:;" + #define NO_FPIE1_SPEC "fno-pie" + #define FPIE1_SPEC NO_FPIE1_SPEC ":;" +@@ -916,7 +916,7 @@ proper position among the other output files. */ + #ifndef LINK_PIE_SPEC + #ifdef HAVE_LD_PIE + #ifndef LD_PIE_SPEC +-#define LD_PIE_SPEC "-pie" ++#define LD_PIE_SPEC "-pie %{static:--no-dynamic-linker -Bsymbolic}" + #endif + #else + #define LD_PIE_SPEC "" diff --git a/main/gcc6/300-main-gcc-add-musl-s390x-dynamic-linker.patch b/main/gcc6/300-main-gcc-add-musl-s390x-dynamic-linker.patch new file mode 100644 index 000000000..241957871 --- /dev/null +++ b/main/gcc6/300-main-gcc-add-musl-s390x-dynamic-linker.patch @@ -0,0 +1,32 @@ +From be841c16dd544553c67faac79bd4cc3cd10a1dc0 Mon Sep 17 00:00:00 2001 +From: "Tuan M. Hoang" +Date: Mon, 21 Nov 2016 01:42:16 +0700 +Subject: [PATCH] main/gcc: add musl s390x dynamic linker + +--- + gcc/config/s390/linux.h | 9 +++++++++ + 1 file changed, 9 insertions(+) + +diff --git a/gcc/config/s390/linux.h b/gcc/config/s390/linux.h +index 1e3ed35..a244214 100644 +--- a/gcc/config/s390/linux.h ++++ b/gcc/config/s390/linux.h +@@ -63,6 +63,15 @@ along with GCC; see the file COPYING3. If not see + #define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1" + #define GLIBC_DYNAMIC_LINKER64 "/lib/ld64.so.1" + ++#undef MUSL_DYNAMIC_LINKER ++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-s390x.so.1" ++#undef MUSL_DYNAMIC_LINKER32 ++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-s390x.so.1" ++#undef MUSL_DYNAMIC_LINKER64 ++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-s390x.so.1" ++#undef MUSL_DYNAMIC_LINKERX32 ++#define MUSL_DYNAMIC_LINKERX32 "/lib/ld-musl-s390x.so.1" ++ + #undef LINK_SPEC + #define LINK_SPEC \ + "%{m31:-m elf_s390}%{m64:-m elf64_s390} --as-needed \ +-- +2.10.2 + diff --git a/main/gcc6/310-build-gcj-s390x.patch b/main/gcc6/310-build-gcj-s390x.patch new file mode 100644 index 000000000..1e522ee15 --- /dev/null +++ b/main/gcc6/310-build-gcj-s390x.patch @@ -0,0 +1,28 @@ +From 697a7ba791fce2ffab2ed723d909a89684019e3d Mon Sep 17 00:00:00 2001 +From: "Tuan M. Hoang" +Date: Sun, 19 Feb 2017 17:03:33 +0000 +Subject: [PATCH] main/gcc : when building gcc-java on s390x, libgcj.so + complains about undefined reference to __data_start. Using + SEARCH_FOR_DATA_START instead solved it. Credit to Andrew Haley at RedHat. + +--- + boehm-gc/include/private/gcconfig.h | 3 +-- + 1 file changed, 1 insertion(+), 2 deletions(-) + +diff --git a/boehm-gc/include/private/gcconfig.h b/boehm-gc/include/private/gcconfig.h +index 4ca6a80..a15fff6 100644 +--- a/boehm-gc/include/private/gcconfig.h ++++ b/boehm-gc/include/private/gcconfig.h +@@ -1837,8 +1837,7 @@ + # define OS_TYPE "LINUX" + # define LINUX_STACKBOTTOM + # define DYNAMIC_LOADING +- extern int __data_start[]; +-# define DATASTART ((ptr_t)(__data_start)) ++# define SEARCH_FOR_DATA_START + extern int _end[]; + # define DATAEND (_end) + # define CACHE_LINE_SIZE 256 +-- +2.11.1 + diff --git a/main/gcc6/320-libffi-gnulinux.patch b/main/gcc6/320-libffi-gnulinux.patch new file mode 100644 index 000000000..b3b4fc931 --- /dev/null +++ b/main/gcc6/320-libffi-gnulinux.patch @@ -0,0 +1,13 @@ +diff --git a/libffi/closures.c.orig b/libffi/closures.c +index 721ff00..22a699c 100644 +--- a/libffi/src/closures.c.orig ++++ b/libffi/src/closures.c +@@ -34,7 +34,7 @@ + #include + + #if !FFI_MMAP_EXEC_WRIT && !FFI_EXEC_TRAMPOLINE_TABLE +-# if __gnu_linux__ && !defined(__ANDROID__) ++# if __linux__ && !defined(__ANDROID__) + /* This macro indicates it may be forbidden to map anonymous memory + with both write and execute permission. Code compiled when this + option is defined will attempt to map such pages once, but if it diff --git a/main/gcc6/APKBUILD b/main/gcc6/APKBUILD new file mode 100644 index 000000000..5527689d3 --- /dev/null +++ b/main/gcc6/APKBUILD @@ -0,0 +1,442 @@ +pkgname=gcc6 +pkgver=6.4.0 +pkgrel=0 +pkgdesc="Old GCC for old vendor kernels (C compiler only)" +url="http://gcc.gnu.org" +arch="all" +license="GPL LGPL" +_gccrel=$pkgver-r$pkgrel +depends="binutils isl" +makedepends_build="gcc g++ paxmark bison flex texinfo gawk zip gmp-dev mpfr-dev mpc1-dev zlib-dev" +makedepends_host="linux-headers gmp-dev mpfr-dev mpc1-dev isl-dev zlib-dev" +subpackages=" " +options="!tracedeps" + +# We only care about C, so we can compile old Linux kernels +LANG_CXX=false +LANG_OBJC=false +LANG_JAVA=false +LANG_GO=false +LANG_FORTRAN=false +LANG_ADA=false + +LIBGOMP=false +LIBGCC=false +LIBATOMIC=false +LIBITM=false + +if [ "$CHOST" != "$CTARGET" ]; then + if [ "$BOOTSTRAP" = nolibc ]; then + LANG_CXX=false + LANG_ADA=false + LIBGCC=false + _builddir="$srcdir/build-cross-pass2" + else + _builddir="$srcdir/build-cross-final" + fi + LANG_OBJC=false + LANG_JAVA=false + LANG_GO=false + LANG_FORTRAN=false + LIBGOMP=false + LIBATOMIC=false + LIBITM=false + + # reset target flags (should be set in crosscreate abuild) + # fixup flags. seems gcc treats CPPFLAGS as global without + # _FOR_xxx variants. wrap it in CFLAGS and CXXFLAGS. + export CFLAGS="$CPPFLAGS $CFLAGS" + export CXXFLAGS="$CPPFLAGS $CXXFLAGS" + unset CPPFLAGS + export CFLAGS_FOR_TARGET=" " + export CXXFLAGS_FOR_TARGET=" " + export LDFLAGS_FOR_TARGET=" " + + STRIP_FOR_TARGET="$CTARGET-strip" +elif [ "$CBUILD" != "$CHOST" ]; then + # fixup flags. seems gcc treats CPPFLAGS as global without + # _FOR_xxx variants. wrap it in CFLAGS and CXXFLAGS. + export CFLAGS="$CPPFLAGS $CFLAGS" + export CXXFLAGS="$CPPFLAGS $CXXFLAGS" + unset CPPFLAGS + + # reset flags and cc for build + export CC_FOR_BUILD="gcc" + export CXX_FOR_BUILD="g++" + export CFLAGS_FOR_BUILD=" " + export CXXFLAGS_FOR_BUILD=" " + export LDFLAGS_FOR_BUILD=" " + export CFLAGS_FOR_TARGET=" " + export CXXFLAGS_FOR_TARGET=" " + export LDFLAGS_FOR_TARGET=" " + + # Languages that do not need bootstrapping + LANG_OBJC=false + LANG_JAVA=false + LANG_GO=false + LANG_FORTRAN=false + + STRIP_FOR_TARGET=${CROSS_COMPILE}strip + _builddir="$srcdir/build-cross-native" +else + STRIP_FOR_TARGET=${CROSS_COMPILE}strip + _builddir="$srcdir/build" +fi + +# Go needs {set,make,swap}context, unimplemented in musl +[ "$CTARGET_LIBC" = musl ] && LANG_GO=false + +# libitm has TEXTRELs in ARM build, so disable for now +case "$CTARGET_ARCH" in +arm*) LIBITM=false ;; +mips*) LIBITM=false ;; +esac + +# Fortran uses libquadmath if toolchain has __float128 +# currently on x86, x86_64 and ia64 +LIBQUADMATH=$LANG_FORTRAN +case "$CTARGET_ARCH" in +x86 | x86_64) LIBQUADMATH=$LANG_FORTRAN ;; +*) LIBQUADMATH=false ;; +esac + +# libatomic is a dependency for openvswitch +$LIBATOMIC && subpackages="$subpackages libatomic::$CTARGET_ARCH" +$LIBGCC && subpackages="$subpackages libgcc::$CTARGET_ARCH" +$LIBQUADMATH && subpackages="$subpackages libquadmath::$CTARGET_ARCH" +if $LIBGOMP; then + depends="$depends libgomp=$_gccrel" + subpackages="$subpackages libgomp::$CTARGET_ARCH" +fi + +_languages=c +if $LANG_CXX; then + subpackages="$subpackages libstdc++:libcxx:$CTARGET_ARCH g++$_target:gpp" + _languages="$_languages,c++" +fi +if $LANG_OBJC; then + subpackages="$subpackages libobjc::$CTARGET_ARCH gcc-objc$_target:objc" + _languages="$_languages,objc" +fi +if $LANG_JAVA; then + subpackages="$subpackages libgcj::$CTARGET_ARCH gcc-java$_target:java" + _languages="$_languages,java" +fi +if $LANG_GO; then + subpackages="$subpackages libgo::$CTARGET_ARCH gcc-go$_target:go" + _languages="$_languages,go" +fi +if $LANG_FORTRAN; then + subpackages="$subpackages libgfortran::$CTARGET_ARCH gfortran$_target:gfortran" + _languages="$_languages,fortran" +fi +if $LANG_ADA; then + subpackages="$subpackages libgnat::$CTARGET_ARCH gcc-gnat$_target:gnat" + _languages="$_languages,ada" + makedepends_build="$makedepends_build gcc-gnat gcc-gnat$_cross" +fi +makedepends="$makedepends_build $makedepends_host" + +source="http://gcc.gnu.org/pub/gcc/releases/gcc-${_pkgbase:-$pkgver}/gcc-${_pkgbase:-$pkgver}.tar.xz + http://sourceware.org/pub/java/ecj-4.9.jar + + 001_all_default-ssp-strong.patch + 002_all_default-relro.patch + 003_all_default-fortify-source.patch + 005_all_default-as-needed.patch + 011_all_default-warn-format-security.patch + 012_all_default-warn-trampolines.patch + 020_all_msgfmt-libstdc++-link.patch + 050_all_libiberty-asprintf.patch + 051_all_libiberty-pic.patch + 053_all_libitm-no-fortify-source.patch + 067_all_gcc-poison-system-directories.patch + 090_all_pr55930-dependency-tracking.patch + + 201-cilkrts.patch + 203-libgcc_s.patch + 204-linux_libc_has_function.patch + 205-nopie.patch + 207-static-pie.patch + + libgcc-always-build-gcceh.a.patch + gcc-4.9-musl-fortify.patch + gcc-6.1-musl-libssp.patch + boehm-gc-musl.patch + gcc-pure64.patch + fix-gcj-stdgnu14-link.patch + fix-gcj-musl.patch + fix-gcj-iconv-musl.patch + + gcc-4.8-build-args.patch + fix-cxxflags-passing.patch + ada-fixes.patch + ada-shared.patch + ada-musl.patch + ada-aarch64-multiarch.patch + + 300-main-gcc-add-musl-s390x-dynamic-linker.patch + 310-build-gcj-s390x.patch + 320-libffi-gnulinux.patch + + fix-rs6000-pie.patch + fix-linux-header-use-in-libgcc.patch + gcc-pure64-mips.patch + ada-mips64.patch + + 0001-i386-Move-struct-ix86_frame-to-machine_function.patch + 0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch + 0003-i386-Use-const-reference-of-struct-ix86_frame-to-avo.patch + 0004-x86-Add-mindirect-branch.patch + 0005-x86-Add-mfunction-return.patch + 0006-x86-Add-mindirect-branch-register.patch + 0007-x86-Add-V-register-operand-modifier.patch + 0008-x86-Disallow-mindirect-branch-mfunction-return-with-.patch + 0009-Use-INVALID_REGNUM-in-indirect-thunk-processing.patch + 0010-i386-Pass-INVALID_REGNUM-as-invalid-register-number.patch + 0011-i386-Update-mfunction-return-for-return-with-pop.patch + 0012-i386-Add-TARGET_INDIRECT_BRANCH_REGISTER.patch + 0013-i386-Don-t-generate-alias-for-function-return-thunk.patch + " + +# we build out-of-tree +_gccdir="$srcdir"/gcc-${_pkgbase:-$pkgver} +_gcclibdir=/usr/lib/gcc/${CTARGET}/$pkgver +_gcclibexec=/usr/libexec/gcc/${CTARGET}/$pkgver + +prepare() { + cd "$_gccdir" + + _err= + for i in $source; do + case "$i" in + *.patch) + msg "Applying $i" + patch -p1 -F3 -i "$srcdir"/$i || _err="$_err $i" + ;; + esac + done + + if [ -n "$_err" ]; then + error "The following patches failed:" + for i in $_err; do + echo " $i" + done + return 1 + fi + + # see http://gcc.gnu.org/ml/java/2008-04/msg00027.html + mv "$srcdir"/ecj-*.jar ecj.jar + + echo ${pkgver} > gcc/BASE-VER +} + +build() { + local _arch_configure= + local _libc_configure= + local _cross_configure= + local _bootstrap_configure= + local _symvers= + + cd "$_gccdir" + + case "$CTARGET" in + aarch64-*-*-*) _arch_configure="--with-arch=armv8-a --with-abi=lp64";; + armv5-*-*-*eabi) _arch_configure="--with-arch=armv5te --with-tune=arm926ej-s --with-float=soft --with-abi=aapcs-linux";; + armv6-*-*-*eabihf) _arch_configure="--with-arch=armv6zk --with-tune=arm1176jzf-s --with-fpu=vfp --with-float=hard --with-abi=aapcs-linux";; + armv7-*-*-*eabihf) _arch_configure="--with-arch=armv7-a --with-tune=generic-armv7-a --with-fpu=vfpv3-d16 --with-float=hard --with-abi=aapcs-linux --with-mode=thumb";; + mips-*-*-*) _arch_configure="--with-arch=mips32 --with-mips-plt --with-float=soft --with-abi=32";; + mips64-*-*-*) _arch_configure="--with-arch=mips3 --with-tune=mips64 --with-mips-plt --with-float=soft --with-abi=64";; + mips64el-*-*-*) _arch_configure="--with-arch=mips3 --with-tune=mips64 --with-mips-plt --with-float=soft --with-abi=64";; + mipsel-*-*-*) _arch_configure="--with-arch=mips32 --with-mips-plt --with-float=soft --with-abi=32";; + powerpc-*-*-*) _arch_configure="--enable-secureplt --enable-decimal-float=no";; + powerpc64*-*-*-*) _arch_configure="--with-abi=elfv2 --enable-secureplt --enable-decimal-float=no --enable-targets=powerpcle-linux";; + i486-*-*-*) _arch_configure="--with-arch=i486 --with-tune=generic --enable-cld";; + i586-*-*-*) _arch_configure="--with-arch=i586 --with-tune=generic --enable-cld";; + s390x-*-*-*) _arch_configure="--with-arch=z196 --with-tune=zEC12 --with-zarch --with-long-double-128 --enable-decimal-float";; + esac + + case "$CTARGET_ARCH" in + mips*) _hash_style_configure="--with-linker-hash-style=sysv" ;; + *) _hash_style_configure="--with-linker-hash-style=gnu" ;; + esac + + case "$CTARGET_LIBC" in + musl) + # musl does not support mudflap, or libsanitizer + # libmpx uses secure_getenv and struct _libc_fpstate not present in musl + # alpine musl provides libssp_nonshared.a, so we don't need libssp either + _libc_configure="--disable-libssp --disable-libmpx --disable-libmudflap --disable-libsanitizer" + _symvers="--disable-symvers" + export libat_cv_have_ifunc=no + ;; + esac + + [ "$CBUILD" != "$CHOST" ] && _cross_configure="--disable-bootstrap" + [ "$CHOST" != "$CTARGET" ] && _cross_configure="--disable-bootstrap --with-sysroot=$CBUILDROOT" + + case "$BOOTSTRAP" in + nolibc) _bootstrap_configure="--with-newlib --disable-shared --enable-threads=no" ;; + *) _bootstrap_configure="--enable-shared --enable-threads --enable-tls" ;; + esac + + $LIBGOMP || _bootstrap_configure="$_bootstrap_configure --disable-libgomp" + $LIBATOMIC || _bootstrap_configure="$_bootstrap_configure --disable-libatomic" + $LIBITM || _bootstrap_configure="$_bootstrap_configure --disable-libitm" + $LIBQUADMATH || _arch_configure="$_arch_configure --disable-libquadmath" + + msg "Building the following:" + echo "" + echo " CBUILD=$CBUILD" + echo " CHOST=$CHOST" + echo " CTARGET=$CTARGET" + echo " CTARGET_ARCH=$CTARGET_ARCH" + echo " CTARGET_LIBC=$CTARGET_LIBC" + echo " languages=$_languages" + echo " arch_configure=$_arch_configure" + echo " libc_configure=$_libc_configure" + echo " cross_configure=$_cross_configure" + echo " bootstrap_configure=$_bootstrap_configure" + echo " hash_style_configure=$_hash_style_configure" + echo "" + + mkdir -p "$_builddir" + cd "$_builddir" + "$_gccdir"/configure --prefix=/usr/gcc6 \ + --mandir=/usr/share/man \ + --infodir=/usr/share/info \ + --build=${CBUILD} \ + --host=${CHOST} \ + --target=${CTARGET} \ + --with-pkgversion="postmarketOS ${pkgver}" \ + --enable-checking=release \ + --disable-fixed-point \ + --disable-libstdcxx-pch \ + \ + --disable-bootstrap \ + --disable-libstdcxx \ + \ + --disable-multilib \ + --disable-nls \ + --disable-werror \ + $_symvers \ + --enable-__cxa_atexit \ + --enable-default-pie \ + --enable-cloog-backend \ + --enable-languages=$_languages \ + $_arch_configure \ + $_libc_configure \ + $_cross_configure \ + $_bootstrap_configure \ + --with-system-zlib \ + $_hash_style_configure + make +} + +package() { + cd "$_builddir" + make -j1 DESTDIR="${pkgdir}" install + + # gcc symlinks + local prefix=/usr/gcc6 + mkdir -p "$pkgdir"/usr/bin + ln -s "$prefix"/bin/gcc "$pkgdir"/usr/bin/gcc6 + ln -s gcc "$pkgdir$prefix"/bin/cc + ln -s gcc "$pkgdir$prefix"/bin/gcc6 + + # remove docs + rm -r "$pkgdir/usr/share/" + + # we dont support gcj -static + # and saving 35MB is not bad. + find "$pkgdir" -name libgcj.a -o -name libgtkpeer.a \ + -o -name libgjsmalsa.a -o -name libgcj-tools.a \ + -o -name libjvm.a -o -name libgij.a -o -name libgcj_bc.a \ + -o -name libjavamath.a \ + | xargs rm -f + + # strip debug info from some static libs + ${STRIP_FOR_TARGET} -g `find "$pkgdir" \( -name libgfortran.a -o -name libobjc.a -o -name libgomp.a \ + -o -name libmudflap.a -o -name libmudflapth.a \ + -o -name libgcc.a -o -name libgcov.a -o -name libquadmath.a \ + -o -name libitm.a -o -name libgo.a -o -name libcaf\*.a \ + -o -name libatomic.a -o -name libasan.a -o -name libtsan.a \) \ + -a -type f` + + if $LANG_JAVA; then + sed -i -e 's/lib: /&%{static:%eJava programs cannot be linked statically}/' \ + "$pkgdir"/usr/lib/libgcj.spec + fi + + if [ "$CHOST" != "$CTARGET" ]; then + # cross-gcc: remove any files that would conflict with the + # native gcc package + rm -rf "$pkgdir"/usr/bin/cc "$pkgdir"/usr/include "$pkgdir"/usr/share + # libcc1 does not depend on target, don't ship it + rm -rf "$pkgdir"/usr/lib/libcc1.so* + + # fixup gcc library symlinks to be linker scripts so + # linker finds the libs from relocated sysroot + for so in "$pkgdir"/usr/$CTARGET/lib/*.so; do + if [ -h "$so" ]; then + local _real=$(basename $(readlink "$so")) + rm -f "$so" + echo "GROUP ($_real)" > "$so" + fi + done + fi +} + +sha512sums="02c60e54527c7adf584798d5251f8a0b80c93d5deafce82501b2c28e6692e0bd783927bbfc4bc527a863c0cccc025150a34740a9e29badb02d4b48e56a8aba90 gcc-6.4.0.tar.xz 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b/main/gcc6/ada-aarch64-multiarch.patch new file mode 100644 index 000000000..ac60b6f6a --- /dev/null +++ b/main/gcc6/ada-aarch64-multiarch.patch @@ -0,0 +1,16 @@ +--- gcc-6.4.0/gcc/ada/gcc-interface/Makefile.in.orig ++++ gcc-6.4.0/gcc/ada/gcc-interface/Makefile.in +@@ -2042,13 +2042,8 @@ + system.ads + #else + #include ++#include + #endif + + #ifdef __MINGW32__ +--- gcc-6.1.0.orig/gcc/ada/terminals.c ++++ gcc-6.1.0/gcc/ada/terminals.c +@@ -1068,13 +1068,6 @@ + #include + #include + +-/* On some system termio is either absent or including it will disable termios +- (HP-UX) */ +-#if !defined (__hpux__) && !defined (BSD) && !defined (__APPLE__) \ +- && !defined (__rtems__) +-# include +-#endif +- + #include + #include + #include +@@ -1169,7 +1162,7 @@ + char *slave_name = NULL; + + #ifdef USE_GETPT +- master_fd = getpt (); ++ master_fd = posix_openpt (O_RDWR); + #elif defined (USE_OPENPTY) + status = openpty (&master_fd, &slave_fd, NULL, NULL, NULL); + #elif defined (USE_CLONE_DEVICE) diff --git a/main/gcc6/ada-mips64.patch b/main/gcc6/ada-mips64.patch new file mode 100644 index 000000000..b7cd3debc --- /dev/null +++ b/main/gcc6/ada-mips64.patch @@ -0,0 +1,224 @@ +From 5bbd6ca3755e2a199de98d2b270d8a6f616aa6a6 Mon Sep 17 00:00:00 2001 +From: Nils Andreas Svee +Date: Thu, 21 Dec 2017 16:46:12 +0100 +Subject: [PATCH] ada-mips64 + +--- + gcc/ada/gcc-interface/Makefile.in | 29 ++++++-- + gcc/ada/system-linux-mips64.ads | 147 ++++++++++++++++++++++++++++++++++++++ + 2 files changed, 171 insertions(+), 5 deletions(-) + create mode 100644 gcc/ada/system-linux-mips64.ads + +diff --git a/gcc/ada/gcc-interface/Makefile.in b/gcc/ada/gcc-interface/Makefile.in +index 598b262d9..1844a6962 100644 +--- a/gcc/ada/gcc-interface/Makefile.in ++++ b/gcc/ada/gcc-interface/Makefile.in +@@ -1854,9 +1854,9 @@ ifeq ($(strip $(filter-out cygwin% mingw32% pe,$(target_os))),) + LIBRARY_VERSION := $(LIB_VERSION) + endif + +-# Mips Linux +-ifeq ($(strip $(filter-out mips linux%,$(target_cpu) $(target_os))),) +- LIBGNAT_TARGET_PAIRS = \ ++# Mips and Mips64 Linux ++ifeq ($(strip $(filter-out mips mips64 linux%,$(target_cpu) $(target_os))),) ++ LIBGNAT_TARGET_PAIRS_COMMON = \ + a-intnam.ads. -- ++-- -- ++-- GNAT was originally developed by the GNAT team at New York University. -- ++-- Extensive contributions were provided by Ada Core Technologies Inc. -- ++-- -- ++------------------------------------------------------------------------------ ++ ++package System is ++ pragma Pure; ++ -- Note that we take advantage of the implementation permission to make ++ -- this unit Pure instead of Preelaborable; see RM 13.7.1(15). In Ada ++ -- 2005, this is Pure in any case (AI-362). ++ ++ pragma No_Elaboration_Code_All; ++ -- Allow the use of that restriction in units that WITH this unit ++ ++ type Name is (SYSTEM_NAME_GNAT); ++ System_Name : constant Name := SYSTEM_NAME_GNAT; ++ ++ -- System-Dependent Named Numbers ++ ++ Min_Int : constant := Long_Long_Integer'First; ++ Max_Int : constant := Long_Long_Integer'Last; ++ ++ Max_Binary_Modulus : constant := 2 ** Long_Long_Integer'Size; ++ Max_Nonbinary_Modulus : constant := Integer'Last; ++ ++ Max_Base_Digits : constant := Long_Long_Float'Digits; ++ Max_Digits : constant := Long_Long_Float'Digits; ++ ++ Max_Mantissa : constant := 63; ++ Fine_Delta : constant := 2.0 ** (-Max_Mantissa); ++ ++ Tick : constant := 0.000_001; ++ ++ -- Storage-related Declarations ++ ++ type Address is private; ++ pragma Preelaborable_Initialization (Address); ++ Null_Address : constant Address; ++ ++ Storage_Unit : constant := 8; ++ Word_Size : constant := 64; ++ Memory_Size : constant := 2 ** 64; ++ ++ -- Address comparison ++ ++ function "<" (Left, Right : Address) return Boolean; ++ function "<=" (Left, Right : Address) return Boolean; ++ function ">" (Left, Right : Address) return Boolean; ++ function ">=" (Left, Right : Address) return Boolean; ++ function "=" (Left, Right : Address) return Boolean; ++ ++ pragma Import (Intrinsic, "<"); ++ pragma Import (Intrinsic, "<="); ++ pragma Import (Intrinsic, ">"); ++ pragma Import (Intrinsic, ">="); ++ pragma Import (Intrinsic, "="); ++ ++ -- Other System-Dependent Declarations ++ ++ type Bit_Order is (High_Order_First, Low_Order_First); ++ Default_Bit_Order : constant Bit_Order := High_Order_First; ++ pragma Warnings (Off, Default_Bit_Order); -- kill constant condition warning ++ ++ -- Priority-related Declarations (RM D.1) ++ ++ Max_Priority : constant Positive := 30; ++ Max_Interrupt_Priority : constant Positive := 31; ++ ++ subtype Any_Priority is Integer range 0 .. 31; ++ subtype Priority is Any_Priority range 0 .. 30; ++ subtype Interrupt_Priority is Any_Priority range 31 .. 31; ++ ++ Default_Priority : constant Priority := 15; ++ ++private ++ ++ type Address is mod Memory_Size; ++ Null_Address : constant Address := 0; ++ ++ -------------------------------------- ++ -- System Implementation Parameters -- ++ -------------------------------------- ++ ++ -- These parameters provide information about the target that is used ++ -- by the compiler. They are in the private part of System, where they ++ -- can be accessed using the special circuitry in the Targparm unit ++ -- whose source should be consulted for more detailed descriptions ++ -- of the individual switch values. ++ ++ Backend_Divide_Checks : constant Boolean := False; ++ Backend_Overflow_Checks : constant Boolean := True; ++ Command_Line_Args : constant Boolean := True; ++ Configurable_Run_Time : constant Boolean := False; ++ Denorm : constant Boolean := True; ++ Duration_32_Bits : constant Boolean := False; ++ Exit_Status_Supported : constant Boolean := True; ++ Fractional_Fixed_Ops : constant Boolean := False; ++ Frontend_Layout : constant Boolean := False; ++ Machine_Overflows : constant Boolean := False; ++ Machine_Rounds : constant Boolean := True; ++ Preallocated_Stacks : constant Boolean := False; ++ Signed_Zeros : constant Boolean := True; ++ Stack_Check_Default : constant Boolean := False; ++ Stack_Check_Probes : constant Boolean := True; ++ Stack_Check_Limits : constant Boolean := False; ++ Support_Aggregates : constant Boolean := True; ++ Support_Composite_Assign : constant Boolean := True; ++ Support_Composite_Compare : constant Boolean := True; ++ Support_Long_Shifts : constant Boolean := True; ++ Always_Compatible_Rep : constant Boolean := False; ++ Suppress_Standard_Library : constant Boolean := False; ++ Use_Ada_Main_Program_Name : constant Boolean := False; ++ Frontend_Exceptions : constant Boolean := False; ++ ZCX_By_Default : constant Boolean := True; ++ ++end System; +-- +2.15.1 + diff --git a/main/gcc6/ada-musl.patch b/main/gcc6/ada-musl.patch new file mode 100644 index 000000000..464c3d57d --- /dev/null +++ b/main/gcc6/ada-musl.patch @@ -0,0 +1,137 @@ +diff -rup gcc-5.1.0/gcc.orig/ada/adaint.c gcc-5.1.0/gcc/ada/adaint.c +--- gcc-5.1.0/gcc.orig/ada/adaint.c 2015-02-20 11:48:57.000000000 +0000 ++++ gcc-5.1.0/gcc/ada/adaint.c 2015-06-02 10:47:51.672767476 +0000 +@@ -70,6 +70,11 @@ + #include + #include + #endif ++ ++#if defined (linux) ++#define _GNU_SOURCE 1 ++#include ++#endif + + #ifdef __PikeOS__ + #define __BSD_VISIBLE 1 +@@ -3057,8 +3062,6 @@ __gnat_lwp_self (void) + return (void *) syscall (__NR_gettid); + } + +-#include +- + /* glibc versions earlier than 2.7 do not define the routines to handle + dynamically allocated CPU sets. For these targets, we use the static + versions. */ +@@ -3067,7 +3070,7 @@ __gnat_lwp_self (void) + + /* Dynamic cpu sets */ + +-cpu_set_t * ++void * + __gnat_cpu_alloc (size_t count) + { + return CPU_ALLOC (count); +@@ -3080,33 +3083,33 @@ __gnat_cpu_alloc_size (size_t count) + } + + void +-__gnat_cpu_free (cpu_set_t *set) ++__gnat_cpu_free (void *set) + { +- CPU_FREE (set); ++ CPU_FREE ((cpu_set_t *) set); + } + + void +-__gnat_cpu_zero (size_t count, cpu_set_t *set) ++__gnat_cpu_zero (size_t count, void *set) + { +- CPU_ZERO_S (count, set); ++ CPU_ZERO_S (count, (cpu_set_t *) set); + } + + void +-__gnat_cpu_set (int cpu, size_t count, cpu_set_t *set) ++__gnat_cpu_set (int cpu, size_t count, void *set) + { + /* Ada handles CPU numbers starting from 1, while C identifies the first + CPU by a 0, so we need to adjust. */ +- CPU_SET_S (cpu - 1, count, set); ++ CPU_SET_S (cpu - 1, count, (cpu_set_t *) set); + } + + #else /* !CPU_ALLOC */ + + /* Static cpu sets */ + +-cpu_set_t * ++void * + __gnat_cpu_alloc (size_t count ATTRIBUTE_UNUSED) + { +- return (cpu_set_t *) xmalloc (sizeof (cpu_set_t)); ++ return xmalloc (sizeof (cpu_set_t)); + } + + size_t +@@ -3116,23 +3119,23 @@ __gnat_cpu_alloc_size (size_t count ATTR + } + + void +-__gnat_cpu_free (cpu_set_t *set) ++__gnat_cpu_free (void *set) + { + free (set); + } + + void +-__gnat_cpu_zero (size_t count ATTRIBUTE_UNUSED, cpu_set_t *set) ++__gnat_cpu_zero (size_t count ATTRIBUTE_UNUSED, void *set) + { +- CPU_ZERO (set); ++ CPU_ZERO ((cpu_set_t *) set); + } + + void +-__gnat_cpu_set (int cpu, size_t count ATTRIBUTE_UNUSED, cpu_set_t *set) ++__gnat_cpu_set (int cpu, size_t count ATTRIBUTE_UNUSED, void *set) + { + /* Ada handles CPU numbers starting from 1, while C identifies the first + CPU by a 0, so we need to adjust. */ +- CPU_SET (cpu - 1, set); ++ CPU_SET (cpu - 1, (cpu_set_t *) set); + } + #endif /* !CPU_ALLOC */ + #endif /* linux */ +diff -rup gcc-5.1.0/gcc.orig/ada/adaint.h gcc-5.1.0/gcc/ada/adaint.h +--- gcc-5.1.0/gcc.orig/ada/adaint.h 2015-01-27 17:20:27.000000000 +0000 ++++ gcc-5.1.0/gcc/ada/adaint.h 2015-06-02 10:47:23.188910894 +0000 +@@ -287,13 +287,11 @@ extern void *__gnat_lwp_self (voi + + /* Routines for interface to required CPU set primitives */ + +-#include +- +-extern cpu_set_t *__gnat_cpu_alloc (size_t); ++extern void * __gnat_cpu_alloc (size_t); + extern size_t __gnat_cpu_alloc_size (size_t); +-extern void __gnat_cpu_free (cpu_set_t *); +-extern void __gnat_cpu_zero (size_t, cpu_set_t *); +-extern void __gnat_cpu_set (int, size_t, cpu_set_t *); ++extern void __gnat_cpu_free (void *); ++extern void __gnat_cpu_zero (size_t, void *); ++extern void __gnat_cpu_set (int, size_t, void *); + #endif + + #if defined (_WIN32) +diff -rup gcc-5.1.0/gcc.orig/ada/gcc-interface/Makefile.in gcc-5.1.0/gcc/ada/gcc-interface/Makefile.in +--- gcc-5.1.0/gcc.orig/ada/gcc-interface/Makefile.in 2015-04-09 20:29:28.000000000 +0000 ++++ gcc-5.1.0/gcc/ada/gcc-interface/Makefile.in 2015-06-02 10:47:23.188910894 +0000 +@@ -1910,7 +1910,7 @@ ifeq ($(strip $(filter-out powerpc% linu + endif + + # ARM linux, GNU eabi +-ifeq ($(strip $(filter-out arm% linux-gnueabi%,$(target_cpu) $(target_os))),) ++ifeq ($(strip $(filter-out arm% linux-gnueabi% linux-musleabi% linux-muslgnueabi%,$(target_cpu) $(target_os))),) + LIBGNAT_TARGET_PAIRS = \ + a-intnam.ads + # undef __KERNEL__ +-# else ++# elif defined(__GLIBC__) + /* Kernels prior to 2.1.1 defined struct sigcontext_struct instead of */ + /* struct sigcontext. libc6 (glibc2) uses "struct sigcontext" in */ + /* prototypes, so we have to include the top-level sigcontext.h to */ +--- gcc-4.8.2/boehm-gc/dyn_load.c.orig 2014-02-17 14:13:09.519850231 +0200 ++++ gcc-4.8.2/boehm-gc/dyn_load.c 2014-02-17 14:14:27.906093514 +0200 +@@ -459,9 +459,7 @@ + /* For glibc 2.2.4+. Unfortunately, it doesn't work for older */ + /* versions. Thanks to Jakub Jelinek for most of the code. */ + +-# if (defined(LINUX) || defined (__GLIBC__)) /* Are others OK here, too? */ \ +- && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) \ +- || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 2 && defined(DT_CONFIG))) ++# if (defined(LINUX) || defined (__GLIBC__)) + + /* We have the header files for a glibc that includes dl_iterate_phdr. */ + /* It may still not be available in the library on the target system. */ +--- gcc-4.8.2/boehm-gc/include/private/gcconfig.h.orig 2014-02-17 14:14:36.026049422 +0200 ++++ gcc-4.8.2/boehm-gc/include/private/gcconfig.h 2014-02-17 14:17:11.345207887 +0200 +@@ -684,7 +684,7 @@ + # ifdef __ELF__ + # define DYNAMIC_LOADING + # include +-# if defined(__GLIBC__)&& __GLIBC__>=2 ++# if 1 + # define SEARCH_FOR_DATA_START + # else /* !GLIBC2 */ + extern char **__environ; +@@ -1147,7 +1147,7 @@ + # define DATASTART ((ptr_t)((((word) (_etext)) + 0xfff) & ~0xfff)) + # endif + # include +-# if defined(__GLIBC__) && __GLIBC__ >= 2 ++# if 1 + # define SEARCH_FOR_DATA_START + # else + extern char **__environ; +@@ -1367,7 +1367,7 @@ + # define HBLKSIZE 4096 + # endif + # define USE_GENERIC_PUSH_REGS +-# if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 2 || __GLIBC__ > 2 ++# if 1 + # define LINUX_STACKBOTTOM + # else + # define STACKBOTTOM 0x80000000 +@@ -1858,7 +1858,7 @@ + # ifdef __ELF__ + # define DYNAMIC_LOADING + # include +-# if defined(__GLIBC__) && __GLIBC__ >= 2 ++# if 1 + # define SEARCH_FOR_DATA_START + # else + extern char **__environ; diff --git a/main/gcc6/fix-cxxflags-passing.patch b/main/gcc6/fix-cxxflags-passing.patch new file mode 100644 index 000000000..8eb1de77d --- /dev/null +++ b/main/gcc6/fix-cxxflags-passing.patch @@ -0,0 +1,10 @@ +--- gcc-4.8.1/Makefile.in.orig ++++ gcc-4.8.1/Makefile.in +@@ -169,6 +169,7 @@ + # built for the build system to override those in BASE_FLAGS_TO_PASSS. + EXTRA_BUILD_FLAGS = \ + CFLAGS="$(CFLAGS_FOR_BUILD)" \ ++ CXXFLAGS="$(CXXFLAGS_FOR_BUILD)" \ + LDFLAGS="$(LDFLAGS_FOR_BUILD)" + + # This is the list of directories to built for the host system. diff --git a/main/gcc6/fix-gcj-iconv-musl.patch b/main/gcc6/fix-gcj-iconv-musl.patch new file mode 100644 index 000000000..b0015751e --- /dev/null +++ b/main/gcc6/fix-gcj-iconv-musl.patch @@ -0,0 +1,120 @@ +--- gcc-4.8.2/libjava/gnu/gcj/convert/natIconv.cc.orig 2014-02-18 18:46:14.897880526 +0200 ++++ gcc-4.8.2/libjava/gnu/gcj/convert/natIconv.cc 2014-02-18 18:50:08.766613550 +0200 +@@ -24,6 +24,13 @@ + + #ifdef HAVE_ICONV + #include ++#include ++ ++#if __BYTE_ORDER == __BIG_ENDIAN ++#define UCS2_CHARSET "UCS-2BE" ++#else ++#define UCS2_CHARSET "UCS-2LE" ++#endif + + template + static inline size_t +@@ -45,7 +52,7 @@ + _Jv_GetStringUTFRegion (encoding, 0, encoding->length(), buffer); + buffer[len] = '\0'; + +- iconv_t h = iconv_open ("UCS-2", buffer); ++ iconv_t h = iconv_open (UCS2_CHARSET, buffer); + if (h == (iconv_t) -1) + throw new ::java::io::UnsupportedEncodingException (encoding); + +@@ -99,18 +106,6 @@ + throw new ::java::io::CharConversionException (); + } + +- if (iconv_byte_swap) +- { +- size_t max = (old_out - outavail) / sizeof (jchar); +- for (size_t i = 0; i < max; ++i) +- { +- // Byte swap. +- jchar c = (((out[outpos + i] & 0xff) << 8) +- | ((out[outpos + i] >> 8) & 0xff)); +- outbuf[i] = c; +- } +- } +- + inpos += old_in - inavail; + return (old_out - outavail) / sizeof (jchar); + #else /* HAVE_ICONV */ +@@ -145,7 +140,7 @@ + _Jv_GetStringUTFRegion (encoding, 0, encoding->length(), buffer); + buffer[len] = '\0'; + +- iconv_t h = iconv_open (buffer, "UCS-2"); ++ iconv_t h = iconv_open (buffer, UCS2_CHARSET); + if (h == (iconv_t) -1) + throw new ::java::io::UnsupportedEncodingException (encoding); + +@@ -187,20 +182,6 @@ + char *inbuf = (char *) &chars[inpos]; + char *outbuf = (char *) &out[count]; + +- if (iconv_byte_swap) +- { +- // Ugly performance penalty -- don't use losing systems! +- temp_buffer = (jchar *) _Jv_Malloc (inlength * sizeof (jchar)); +- for (int i = 0; i < inlength; ++i) +- { +- // Byte swap. +- jchar c = (((chars[inpos + i] & 0xff) << 8) +- | ((chars[inpos + i] >> 8) & 0xff)); +- temp_buffer[i] = c; +- } +- inbuf = (char *) temp_buffer; +- } +- + size_t loop_old_in = old_in; + while (1) + { +@@ -252,44 +233,7 @@ + jboolean + gnu::gcj::convert::IOConverter::iconv_init (void) + { +- // Some versions of iconv() always return their UCS-2 results in +- // big-endian order, and they also require UCS-2 inputs to be in +- // big-endian order. For instance, glibc 2.1.3 does this. If the +- // UTF-8=>UCS-2 iconv converter has this feature, then we assume +- // that all UCS-2 converters do. (This might not be the best +- // heuristic, but is is all we've got.) +- jboolean result = false; +-#ifdef HAVE_ICONV +- iconv_t handle = iconv_open ("UCS-2", "UTF-8"); +- if (handle != (iconv_t) -1) +- { +- jchar c; +- unsigned char in[4]; +- char *inp, *outp; +- size_t inc, outc, r; +- +- // This is the UTF-8 encoding of \ufeff. At least Tru64 UNIX libiconv +- // needs the trailing NUL byte, otherwise iconv fails with EINVAL. +- in[0] = 0xef; +- in[1] = 0xbb; +- in[2] = 0xbf; +- in[3] = 0x00; +- +- inp = (char *) in; +- inc = 4; +- outp = (char *) &c; +- outc = 2; +- +- r = iconv_adapter (iconv, handle, &inp, &inc, &outp, &outc); +- // Conversion must be complete for us to use the result. +- if (r != (size_t) -1 && inc == 0 && outc == 0) +- result = (c != 0xfeff); +- +- // Release iconv handle. +- iconv_close (handle); +- } +-#endif /* HAVE_ICONV */ +- return result; ++ return false; + } + + void diff --git a/main/gcc6/fix-gcj-musl.patch b/main/gcc6/fix-gcj-musl.patch new file mode 100644 index 000000000..d26f510c0 --- /dev/null +++ b/main/gcc6/fix-gcj-musl.patch @@ -0,0 +1,49 @@ +--- gcc-4.8.2/libjava/gnu/classpath/natSystemProperties.cc.orig 2014-02-18 10:55:08.617678779 +0200 ++++ gcc-4.8.2/libjava/gnu/classpath/natSystemProperties.cc 2014-02-18 10:56:31.927227453 +0200 +@@ -289,7 +289,7 @@ + // just default to `en_US'. + setlocale (LC_ALL, ""); + char *locale = setlocale (LC_MESSAGES, ""); +- if (locale && strlen (locale) >= 2) ++ if (locale && strlen (locale) >= 2 && (locale[2] == '\0' || locale[2] == '_')) + { + char buf[3]; + buf[2] = '\0'; +--- gcc-4.8.2/libjava/posix-threads.cc.orig 2014-02-18 13:22:01.789933726 +0200 ++++ gcc-4.8.2/libjava/posix-threads.cc 2014-02-18 13:29:50.924058875 +0200 +@@ -657,6 +657,7 @@ + struct sched_param param; + pthread_attr_t attr; + struct starter *info; ++ size_t ss; + + if (data->flags & FLAG_START) + return; +@@ -675,8 +676,25 @@ + // Set stack size if -Xss option was given. + if (gcj::stack_size > 0) + { +- int e = pthread_attr_setstacksize (&attr, gcj::stack_size); ++ ss = gcj::stack_size; ++ } ++ else ++ { ++ int e = pthread_attr_getstacksize (&attr, &ss); ++ if (e != 0) ++ JvFail (strerror (e)); ++ ++ // Request at least 1meg of stack ++ if (ss >= 1024 * 1024) ++ ss = 0; ++ else ++ ss = 1024 * 1024; ++ } ++ ++ if (ss) ++ { ++ int e = pthread_attr_setstacksize (&attr, ss); + if (e != 0) + JvFail (strerror (e)); + } + + info = (struct starter *) _Jv_AllocBytes (sizeof (struct starter)); diff --git a/main/gcc6/fix-gcj-stdgnu14-link.patch b/main/gcc6/fix-gcj-stdgnu14-link.patch new file mode 100644 index 000000000..2b2ce0fa5 --- /dev/null +++ b/main/gcc6/fix-gcj-stdgnu14-link.patch @@ -0,0 +1,35 @@ +--- gcc-6.1.0/libjava/Makefile.am ++++ gcc-6.1.0/libjava/Makefile.am +@@ -488,10 +488,14 @@ + nat_files = $(nat_source_files:.cc=.lo) + xlib_nat_files = $(xlib_nat_source_files:.cc=.lo) + ++libgcj_la_CPPFLAGS = \ ++ $(AM_CPPFLAGS) \ ++ $(LIBSTDCXX_RAW_CXX_CXXFLAGS) ++ + # Include THREADLIBS here to ensure that the correct version of + # certain linuxthread functions get linked: + ## The mysterious backslash in the grep pattern is consumed by make. +-libgcj_la_LDFLAGS = -rpath $(toolexeclibdir) $(THREADLDFLAGS) $(extra_ldflags) $(THREADLIBS) \ ++libgcj_la_LDFLAGS = $(LIBSTDCXX_RAW_CXX_LDFLAGS) -rpath $(toolexeclibdir) $(THREADLDFLAGS) $(extra_ldflags) $(THREADLIBS) \ + $(LIBLTDL) $(SYS_ZLIBS) $(LIBJAVA_LDFLAGS_NOUNDEF) \ + -version-info `grep -v '^\#' $(srcdir)/libtool-version` \ + $(LIBGCJ_LD_SYMBOLIC_FUNCTIONS) $(LIBGCJ_LD_EXPORT_ALL) +--- gcc-6.1.0/libjava/Makefile.in ++++ gcc-6.1.0/libjava/Makefile.in +@@ -1103,9 +1103,13 @@ + nat_files = $(nat_source_files:.cc=.lo) + xlib_nat_files = $(xlib_nat_source_files:.cc=.lo) + ++libgcj_la_CPPFLAGS = \ ++ $(AM_CPPFLAGS) \ ++ $(LIBSTDCXX_RAW_CXX_CXXFLAGS) ++ + # Include THREADLIBS here to ensure that the correct version of + # certain linuxthread functions get linked: +-libgcj_la_LDFLAGS = -rpath $(toolexeclibdir) $(THREADLDFLAGS) $(extra_ldflags) $(THREADLIBS) \ ++libgcj_la_LDFLAGS = $(LIBSTDCXX_RAW_CXX_LDFLAGS) -rpath $(toolexeclibdir) $(THREADLDFLAGS) $(extra_ldflags) $(THREADLIBS) \ + $(LIBLTDL) $(SYS_ZLIBS) $(LIBJAVA_LDFLAGS_NOUNDEF) \ + -version-info `grep -v '^\#' $(srcdir)/libtool-version` \ + $(LIBGCJ_LD_SYMBOLIC_FUNCTIONS) $(LIBGCJ_LD_EXPORT_ALL) diff --git a/main/gcc6/fix-linux-header-use-in-libgcc.patch b/main/gcc6/fix-linux-header-use-in-libgcc.patch new file mode 100644 index 000000000..6dad1b2ca --- /dev/null +++ b/main/gcc6/fix-linux-header-use-in-libgcc.patch @@ -0,0 +1,44 @@ +From 9cd4503714c4e596818c4ea8e15905c249b7a319 Mon Sep 17 00:00:00 2001 +From: nsz +Date: Thu, 25 Aug 2016 14:08:27 +0000 +Subject: [PATCH] [mips] Fix linux header use in libgcc + +libgcc/ + * config/mips/linux-unwind.h: Use sys/syscall.h. + + + +git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239759 138bc75d-0d04-0410-961f-82ee72b054a4 +--- + libgcc/ChangeLog | 4 ++++ + libgcc/config/mips/linux-unwind.h | 2 +- + 2 files changed, 5 insertions(+), 1 deletion(-) + +diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog +index b78c4b2..99bd2f1 100644 +--- a/libgcc/ChangeLog ++++ b/libgcc/ChangeLog +@@ -1,3 +1,7 @@ ++2016-08-25 Szabolcs Nagy ++ ++ * config/mips/linux-unwind.h: Use sys/syscall.h. ++ + 2016-08-16 Joseph Myers + + PR libgcc/77265 +diff --git a/libgcc/config/mips/linux-unwind.h b/libgcc/config/mips/linux-unwind.h +index bf12de5..4035c121 100644 +--- a/libgcc/config/mips/linux-unwind.h ++++ b/libgcc/config/mips/linux-unwind.h +@@ -27,7 +27,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see + state data appropriately. See unwind-dw2.c for the structs. */ + + #include +-#include ++#include + + /* The third parameter to the signal handler points to something with + * this structure defined in asm/ucontext.h, but the name clashes with +-- +2.9.3 + diff --git a/main/gcc6/fix-rs6000-pie.patch b/main/gcc6/fix-rs6000-pie.patch new file mode 100644 index 000000000..1fbc31a56 --- /dev/null +++ b/main/gcc6/fix-rs6000-pie.patch @@ -0,0 +1,59 @@ +--- gcc-6.3.0.orig/gcc/config/rs6000/sysv4.h ++++ gcc-6.3.0/gcc/config/rs6000/sysv4.h +@@ -753,23 +753,42 @@ + #endif + + #ifdef HAVE_LD_PIE +-#define STARTFILE_LINUX_SPEC "\ +-%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \ +-%{mnewlib:ecrti.o%s;:crti.o%s} \ +-%{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s} \ +-" CRTOFFLOADBEGIN ++#define STARTFILE_LINUX_SPEC \ ++ "%{!shared: %{pg|p|profile:gcrt1.o%s;: \ ++ %{" PIE_SPEC ":%{static:rcrt1.o%s;:Scrt1.o%s}} %{" NO_PIE_SPEC ":crt1.o%s}}} \ ++ crti.o%s %{shared:crtbeginS.o%s;: \ ++ %{" PIE_SPEC ":crtbeginS.o%s} \ ++ %{" NO_PIE_SPEC ":%{static:crtbeginT.o%s;:crtbegin.o%s}}} \ ++ %{fvtable-verify=none:%s; \ ++ fvtable-verify=preinit:vtv_start_preinit.o%s; \ ++ fvtable-verify=std:vtv_start.o%s} \ ++ " CRTOFFLOADBEGIN + #else +-#define STARTFILE_LINUX_SPEC "\ +-%{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}} \ +-%{mnewlib:ecrti.o%s;:crti.o%s} \ +-%{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s} \ +-" CRTOFFLOADBEGIN ++#define STARTFILE_LINUX_SPEC \ ++ "%{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}} \ ++ crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s} \ ++ %{fvtable-verify=none:%s; \ ++ fvtable-verify=preinit:vtv_start_preinit.o%s; \ ++ fvtable-verify=std:vtv_start.o%s} \ ++ " CRTOFFLOADBEGIN + #endif + +-#define ENDFILE_LINUX_SPEC "\ +-%{shared|pie:crtendS.o%s;:crtend.o%s} \ +-%{mnewlib:ecrtn.o%s;:crtn.o%s} \ +-" CRTOFFLOADEND ++#ifdef HAVE_LD_PIE ++#define ENDFILE_LINUX_SPEC \ ++ "%{fvtable-verify=none:%s; \ ++ fvtable-verify=preinit:vtv_end_preinit.o%s; \ ++ fvtable-verify=std:vtv_end.o%s} \ ++ %{shared:crtendS.o%s;: %{" PIE_SPEC ":crtendS.o%s} \ ++ %{" NO_PIE_SPEC ":crtend.o%s}} crtn.o%s \ ++ " CRTOFFLOADEND ++#else ++#define ENDFILE_LINUX_SPEC \ ++ "%{fvtable-verify=none:%s; \ ++ fvtable-verify=preinit:vtv_end_preinit.o%s; \ ++ fvtable-verify=std:vtv_end.o%s} \ ++ %{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s \ ++ " CRTOFFLOADEND ++#endif + + #define LINK_START_LINUX_SPEC "" + diff --git a/main/gcc6/gcc-4.8-build-args.patch b/main/gcc6/gcc-4.8-build-args.patch new file mode 100644 index 000000000..c27e00961 --- /dev/null +++ b/main/gcc6/gcc-4.8-build-args.patch @@ -0,0 +1,41 @@ +When cross compiling a target gcc, target flags may be used on the host + +Configure identifies a number of warning flags (WARN_CFLAGS and +WARN_CXXFLAGS) from the $CC value. The cross compiler may be different +from the host compiler and may not support the same set of flags. This +leads to problems such as: + +cc1plus: error: unrecognized command line option "-Wno-narrowing" +cc1plus: error: unrecognized command line option "-Wno-overlength-strings" + +Work around this problem by removing the warning flags from the +BUILD_CXXFLAGS value, in a way similar to the BUILD_CFLAGS. + +Upstream-Status: Pending + +Signed-off-by: Mark Hatle + +Index: gcc-4.8.0/gcc/configure +=================================================================== +--- gcc-4.8.0.orig/gcc/configure ++++ gcc-4.8.0/gcc/configure +@@ -11720,6 +10581,7 @@ STMP_FIXINC=stmp-fixinc + if test x$build != x$host || test "x$coverage_flags" != x + then + BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)' ++ BUILD_CXXFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)' + BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)' + fi + +Index: gcc-4.8.0/gcc/configure.ac +=================================================================== +--- gcc-4.8.0.orig/gcc/configure.ac ++++ gcc-4.8.0/gcc/configure.ac +@@ -1901,6 +1901,7 @@ STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_F + if test x$build != x$host || test "x$coverage_flags" != x + then + BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)' ++ BUILD_CXXFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)' + BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)' + fi + diff --git a/main/gcc6/gcc-4.9-musl-fortify.patch b/main/gcc6/gcc-4.9-musl-fortify.patch new file mode 100644 index 000000000..daae954c8 --- /dev/null +++ b/main/gcc6/gcc-4.9-musl-fortify.patch @@ -0,0 +1,11 @@ +--- gcc-4.9.2/gcc/config/linux.h.orig 2015-03-09 13:27:13.289736710 +0000 ++++ gcc-4.9.2/gcc/config/linux.h 2015-03-09 13:29:32.295625046 +0000 +@@ -146,6 +146,8 @@ + + #ifdef NATIVE_SYSTEM_HEADER_DIR + #define INCLUDE_DEFAULTS_MUSL_NATIVE \ ++ { NATIVE_SYSTEM_HEADER_DIR "/fortify", 0, 0, 0, 1, 2 }, \ ++ { NATIVE_SYSTEM_HEADER_DIR "/fortify", 0, 0, 0, 1, 0 }, \ + { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 2 }, \ + { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 0 }, + #else diff --git a/main/gcc6/gcc-6.1-musl-libssp.patch b/main/gcc6/gcc-6.1-musl-libssp.patch new file mode 100644 index 000000000..fe5c61434 --- /dev/null +++ b/main/gcc6/gcc-6.1-musl-libssp.patch @@ -0,0 +1,20 @@ +Author: Timo Teräs + +Alpine musl package provides libssp_nonshared.a. We link to it unconditionally, +as otherwise we get link failures if some objects are -fstack-protector built +and final link happens with -fno-stack-protector. This seems to be the common +case when bootstrapping gcc, the piepatches do not seem to fully fix the +crosstoolchain and bootstrap sequence wrt. stack-protector flag usage. + +--- gcc-6.1.0/gcc/gcc.c.orig ++++ gcc-6.1.0/gcc/gcc.c +@@ -870,8 +870,7 @@ + + #ifndef LINK_SSP_SPEC + #ifdef TARGET_LIBC_PROVIDES_SSP +-#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \ +- "|fstack-protector-strong|fstack-protector-explicit:}" ++#define LINK_SSP_SPEC "-lssp_nonshared" + #else + #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \ + "|fstack-protector-strong|fstack-protector-explicit" \ diff --git a/main/gcc6/gcc-pure64-mips.patch b/main/gcc6/gcc-pure64-mips.patch new file mode 100644 index 000000000..d78f28381 --- /dev/null +++ b/main/gcc6/gcc-pure64-mips.patch @@ -0,0 +1,47 @@ +From b8c4e45d052adc247341066f748421743704b481 Mon Sep 17 00:00:00 2001 +From: Nils Andreas Svee +Date: Thu, 21 Dec 2017 03:14:33 +0100 +Subject: [PATCH] Pure 64-bit MIPS + +--- + gcc/config/mips/mips.h | 8 ++++---- + gcc/config/mips/t-linux64 | 6 +++--- + 2 files changed, 7 insertions(+), 7 deletions(-) + +diff --git a/gcc/config/mips/mips.h b/gcc/config/mips/mips.h +index 803ab98e7..afd74752f 100644 +--- a/gcc/config/mips/mips.h ++++ b/gcc/config/mips/mips.h +@@ -3330,11 +3330,11 @@ struct GTY(()) machine_function { + /* If we are *not* using multilibs and the default ABI is not ABI_32 we + need to change these from /lib and /usr/lib. */ + #if MIPS_ABI_DEFAULT == ABI_N32 +-#define STANDARD_STARTFILE_PREFIX_1 "/lib32/" +-#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib32/" ++#define STANDARD_STARTFILE_PREFIX_1 "/lib/" ++#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/" + #elif MIPS_ABI_DEFAULT == ABI_64 +-#define STANDARD_STARTFILE_PREFIX_1 "/lib64/" +-#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib64/" ++#define STANDARD_STARTFILE_PREFIX_1 "/lib/" ++#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/" + #endif + + /* Load store bonding is not supported by micromips and fix_24k. The +diff --git a/gcc/config/mips/t-linux64 b/gcc/config/mips/t-linux64 +index 16c8adf85..bb46204db 100644 +--- a/gcc/config/mips/t-linux64 ++++ b/gcc/config/mips/t-linux64 +@@ -21,6 +21,6 @@ MULTILIB_DIRNAMES = n32 32 64 + MIPS_EL = $(if $(filter %el, $(firstword $(subst -, ,$(target)))),el) + MIPS_SOFT = $(if $(strip $(filter MASK_SOFT_FLOAT_ABI, $(target_cpu_default)) $(filter soft, $(with_float))),soft) + MULTILIB_OSDIRNAMES = \ +- ../lib32$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT)) \ +- ../lib$(call if_multiarch,:mips$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) \ +- ../lib64$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabi64$(MIPS_SOFT)) ++ ../lib \ ++ ../lib32 \ ++ ../lib +-- +2.15.1 + diff --git a/main/gcc6/gcc-pure64.patch b/main/gcc6/gcc-pure64.patch new file mode 100644 index 000000000..2c350fe5a --- /dev/null +++ b/main/gcc6/gcc-pure64.patch @@ -0,0 +1,89 @@ +--- ./gcc/config/i386/t-linux64.orig 2013-01-14 16:32:37.000000000 +0000 ++++ ./gcc/config/i386/t-linux64 2013-04-22 06:12:32.984439677 +0000 +@@ -34,6 +34,6 @@ + comma=, + MULTILIB_OPTIONS = $(subst $(comma),/,$(TM_MULTILIB_CONFIG)) + MULTILIB_DIRNAMES = $(patsubst m%, %, $(subst /, ,$(MULTILIB_OPTIONS))) +-MULTILIB_OSDIRNAMES = m64=../lib64$(call if_multiarch,:x86_64-linux-gnu) +-MULTILIB_OSDIRNAMES+= m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:i386-linux-gnu) ++MULTILIB_OSDIRNAMES = m64=../lib ++MULTILIB_OSDIRNAMES+= m32=../lib32 + MULTILIB_OSDIRNAMES+= mx32=../libx32$(call if_multiarch,:x86_64-linux-gnux32) +--- ./gcc/config/aarch64/t-aarch64-linux.orig ++++ ./gcc/config/aarch64/t-aarch64-linux +@@ -22,7 +22,7 @@ + LIB1ASMFUNCS = _aarch64_sync_cache_range + + AARCH_BE = $(if $(findstring TARGET_BIG_ENDIAN_DEFAULT=1, $(tm_defines)),_be) +-MULTILIB_OSDIRNAMES = mabi.lp64=../lib64$(call if_multiarch,:aarch64$(AARCH_BE)-linux-gnu) ++MULTILIB_OSDIRNAMES = mabi.lp64=../lib + MULTIARCH_DIRNAME = $(call if_multiarch,aarch64$(AARCH_BE)-linux-gnu) + + MULTILIB_OSDIRNAMES += mabi.ilp32=../libilp32 +--- ./gcc/config/s390/t-linux64.orig ++++ ./gcc/config/s390/t-linux64 +@@ -7,5 +7,5 @@ + MULTILIB_OPTIONS = m64/m31 + MULTILIB_DIRNAMES = 64 32 +-MULTILIB_OSDIRNAMES = ../lib64$(call if_multiarch,:s390x-linux-gnu) +-MULTILIB_OSDIRNAMES += $(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:s390-linux-gnu) ++MULTILIB_OSDIRNAMES = m64=../lib ++MULTILIB_OSDIRNAMES+= m32=../lib32 + +--- ./gcc/config/rs6000/t-linux.orig ++++ ./gcc/config/rs6000/t-linux +@@ -2,7 +2,8 @@ + # or soft-float. + ifeq (,$(filter $(with_cpu),$(SOFT_FLOAT_CPUS))$(findstring soft,$(with_float))) + ifneq (,$(findstring powerpc64,$(target))) +-MULTILIB_OSDIRNAMES := .=../lib64$(call if_multiarch,:powerpc64-linux-gnu) ++MULTILIB_OSDIRNAMES := m64=../lib ++MULTILIB_OSDIRNAMES += m32=../lib32 + else + ifneq (,$(findstring spe,$(target))) + MULTIARCH_DIRNAME := powerpc-linux-gnuspe$(if $(findstring 8548,$(with_cpu)),,v1) +@@ -14,7 +15,8 @@ + MULTIARCH_DIRNAME := $(subst -linux,le-linux,$(MULTIARCH_DIRNAME)) + endif + ifneq (,$(findstring powerpc64le,$(target))) +-MULTILIB_OSDIRNAMES := $(subst -linux,le-linux,$(MULTILIB_OSDIRNAMES)) ++MULTILIB_OSDIRNAMES := m64=../lib ++MULTILIB_OSDIRNAMES += m32=../lib32 + endif + endif + +--- ./gcc/config/rs6000/t-linux64.orig ++++ ./gcc/config/rs6000/t-linux64 +@@ -28,8 +28,8 @@ + MULTILIB_OPTIONS := m64/m32 + MULTILIB_DIRNAMES := 64 32 + MULTILIB_EXTRA_OPTS := +-MULTILIB_OSDIRNAMES := m64=../lib64$(call if_multiarch,:powerpc64-linux-gnu) +-MULTILIB_OSDIRNAMES += m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:powerpc-linux-gnu) ++MULTILIB_OSDIRNAMES := m64=../lib ++MULTILIB_OSDIRNAMES += m32=../lib32 + + rs6000-linux.o: $(srcdir)/config/rs6000/rs6000-linux.c + $(COMPILE) $< +--- ./gcc/config/rs6000/t-linux64bele.orig ++++ ./gcc/config/rs6000/t-linux64bele +@@ -2,6 +2,6 @@ + + MULTILIB_OPTIONS += mlittle + MULTILIB_DIRNAMES += le +-MULTILIB_OSDIRNAMES += $(subst =,.mlittle=,$(subst lible32,lib32le,$(subst lible64,lib64le,$(subst lib,lible,$(subst -linux,le-linux,$(MULTILIB_OSDIRNAMES)))))) +-MULTILIB_OSDIRNAMES += $(subst $(if $(findstring 64,$(target)),m64,m32).,,$(filter $(if $(findstring 64,$(target)),m64,m32).mlittle%,$(MULTILIB_OSDIRNAMES))) ++MULTILIB_OSDIRNAMES = m64=../lib ++MULTILIB_OSDIRNAMES+= m32=../lib32 + MULTILIB_MATCHES := ${MULTILIB_MATCHES_ENDIAN} +--- ./gcc/config/rs6000/t-linux64lebe.orig ++++ ./gcc/config/rs6000/t-linux64lebe +@@ -2,6 +2,6 @@ + + MULTILIB_OPTIONS += mbig + MULTILIB_DIRNAMES += be +-MULTILIB_OSDIRNAMES += $(subst =,.mbig=,$(subst libbe32,lib32be,$(subst libbe64,lib64be,$(subst lib,libbe,$(subst le-linux,-linux,$(MULTILIB_OSDIRNAMES)))))) +-MULTILIB_OSDIRNAMES += $(subst $(if $(findstring 64,$(target)),m64,m32).,,$(filter $(if $(findstring 64,$(target)),m64,m32).mbig%,$(MULTILIB_OSDIRNAMES))) ++MULTILIB_OSDIRNAMES := m64=../lib ++MULTILIB_OSDIRNAMES += m32=../lib32 + MULTILIB_MATCHES := ${MULTILIB_MATCHES_ENDIAN} diff --git a/main/gcc6/libgcc-always-build-gcceh.a.patch b/main/gcc6/libgcc-always-build-gcceh.a.patch new file mode 100644 index 000000000..74ae89730 --- /dev/null +++ b/main/gcc6/libgcc-always-build-gcceh.a.patch @@ -0,0 +1,39 @@ +Highly inspired by: + http://landley.net/hg/aboriginal/file/7e0747a665ab/sources/patches/gcc-core-libgcceh.patch + +diff -durN gcc-4.6.0.orig/libgcc/Makefile.in gcc-4.6.0/libgcc/Makefile.in +--- gcc-4.6.0.orig/libgcc/Makefile.in 2011-01-26 05:19:58.000000000 +0100 ++++ gcc-4.6.0/libgcc/Makefile.in 2011-09-12 18:17:12.743718974 +0200 +@@ -772,8 +772,9 @@ + libgcc_s$(SHLIB_EXT): libunwind$(SHLIB_EXT) + endif + ++all: libgcc_eh.a + ifeq ($(enable_shared),yes) +-all: libgcc_eh.a libgcc_s$(SHLIB_EXT) ++all: libgcc_s$(SHLIB_EXT) + ifneq ($(LIBUNWIND),) + all: libunwind$(SHLIB_EXT) + endif +@@ -950,10 +951,6 @@ + install-shared: + $(mkinstalldirs) $(DESTDIR)$(inst_libdir) + +- $(INSTALL_DATA) libgcc_eh.a $(DESTDIR)$(inst_libdir)/ +- chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a +- $(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a +- + $(subst @multilib_dir@,$(MULTIDIR),$(subst \ + @shlib_base_name@,libgcc_s,$(subst \ + @shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(SHLIB_INSTALL)))) +@@ -968,6 +965,10 @@ + chmod 644 $(DESTDIR)$(inst_libdir)/libgcov.a + $(RANLIB) $(DESTDIR)$(inst_libdir)/libgcov.a + ++ $(INSTALL_DATA) libgcc_eh.a $(DESTDIR)$(inst_libdir)/ ++ chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a ++ $(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a ++ + parts="$(INSTALL_PARTS)"; \ + for file in $$parts; do \ + rm -f $(DESTDIR)$(inst_libdir)/$$file; \