7b3702e2dd
Successfully tested both the gcc4 compiler on x86_64 with a simple program (fbdebug) and the gcc4-armhf cross-compiler to build a very old u-boot port for Galaxy Nexus (a MR will follow soon) which failed to boot with either newer version (6 and 8). [skip ci]: already went through
96 lines
No EOL
3.5 KiB
Diff
96 lines
No EOL
3.5 KiB
Diff
2012-01-17 Magnus Granberg <zorry@gentoo.org>
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* gcc/Makefile.in Add -fno-PIE. to ALL_CFLAGS and
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ALL_CXXFLAGS if enable_esp yes.
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Echo enable_esp and enable_crtbeginP to tmp-libgcc.mvars.
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* libgcc/Makefile.in Add crtbeginP.o to EXTRA_PARTS if enable_crtbeginP yes
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We add new file crtbeginP.o if enable_crtbeginP yes
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Add -fno-PIE. to CRTSTUFF_CFLAGS.
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--- a/gcc/Makefile.in 2011-11-09 02:20:14.000000000 +0100
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+++ b/gcc/Makefile.in 2011-12-24 22:28:08.864804375 +0100
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@@ -247,6 +247,14 @@ LINKER_FLAGS = $(CFLAGS)
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endif
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endif
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+# We don't want to compile the compiler with -fPIE, it make PCH fail.
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+enable_esp = @enable_esp@
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+ifeq ($(enable_esp),yes)
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+ESP_NOPIE_CFLAGS = -fno-PIE
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+else
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+ESP_NOPIE_CFLAGS=
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+endif
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+
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# -------------------------------------------
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# Programs which operate on the build machine
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# -------------------------------------------
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@@ -974,12 +982,13 @@ INTERNAL_CFLAGS = -DIN_GCC @CROSS@
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# This is the variable actually used when we compile. If you change this,
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# you probably want to update BUILD_CFLAGS in configure.ac
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-ALL_CFLAGS = $(T_CFLAGS) $(CFLAGS-$@) \
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+ALL_CFLAGS = $(ESP_NOPIE_CFLAGS) $(T_CFLAGS) $(CFLAGS-$@) \
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$(CFLAGS) $(INTERNAL_CFLAGS) $(COVERAGE_FLAGS) $(WARN_CFLAGS) @DEFS@
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# The C++ version.
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-ALL_CXXFLAGS = $(T_CFLAGS) $(CFLAGS-$@) $(CXXFLAGS) $(INTERNAL_CFLAGS) \
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- $(COVERAGE_FLAGS) $(NOEXCEPTION_FLAGS) $(WARN_CXXFLAGS) @DEFS@
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+ALL_CXXFLAGS = $(ESP_NOPIE_CFLAGS) $(T_CFLAGS) $(CFLAGS-$@) $(CXXFLAGS) \
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+ $(INTERNAL_CFLAGS) $(COVERAGE_FLAGS) $(NOEXCEPTION_FLAGS) \
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+ $(WARN_CXXFLAGS) @DEFS@
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# Likewise. Put INCLUDES at the beginning: this way, if some autoconf macro
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# puts -I options in CPPFLAGS, our include files in the srcdir will always
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@@ -1814,6 +1823,8 @@ libgcc.mvars: config.status Makefile spe
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echo GCC_CFLAGS = '$(GCC_CFLAGS)' >> tmp-libgcc.mvars
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echo INHIBIT_LIBC_CFLAGS = '$(INHIBIT_LIBC_CFLAGS)' >> tmp-libgcc.mvars
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echo TARGET_SYSTEM_ROOT = '$(TARGET_SYSTEM_ROOT)' >> tmp-libgcc.mvars
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+ echo enable_esp = '$(enable_esp)' >> tmp-libgcc.mvars
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+ echo enable_crtbeginP = '@enable_crtbeginP@' >> tmp-libgcc.mvars
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mv tmp-libgcc.mvars libgcc.mvars
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--- a/libgcc/Makefile.in 2011-11-22 04:01:02.000000000 +0100
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+++ b/libgcc/Makefile.in 2011-12-25 15:18:22.449610631 +0100
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@@ -219,6 +219,17 @@ else
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DECNUMINC =
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endif
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+ifeq ($(enable_esp),yes)
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+ESP_NOPIE_CFLAGS = -fno-PIE
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+else
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+ESP_NOPIE_CFLAGS=
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+endif
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+
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+# We add crtbeginP.o to the EXTRA_PARTS list if enable_crtbeginP = yes
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+ifeq ($(enable_crtbeginP),yes)
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+EXTRA_PARTS += crtbeginP.o
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+endif
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+
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# Options to use when compiling libgcc2.a.
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#
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LIBGCC2_DEBUG_CFLAGS = -g
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@@ -279,7 +290,7 @@ INTERNAL_CFLAGS = $(CFLAGS) $(LIBGCC2_CF
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CRTSTUFF_CFLAGS = -O2 $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -g0 \
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-finhibit-size-directive -fno-inline -fno-exceptions \
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-fno-zero-initialized-in-bss -fno-toplevel-reorder -fno-tree-vectorize \
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- -fno-stack-protector \
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+ -fno-stack-protector $(ESP_NOPIE_CFLAGS) \
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$(INHIBIT_LIBC_CFLAGS)
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# Extra flags to use when compiling crt{begin,end}.o.
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@@ -966,6 +977,13 @@ crtendS$(objext): $(srcdir)/crtstuff.c
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# This is a version of crtbegin for -static links.
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crtbeginT$(objext): $(srcdir)/crtstuff.c
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$(crt_compile) $(CRTSTUFF_T_CFLAGS) -c $< -DCRT_BEGIN -DCRTSTUFFT_O
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+
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+# This is a version of crtbegin for -static -fPIE links.
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+ifeq ($(enable_crtbeginP),yes)
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+crtbeginP$(objext): $(srcdir)/crtstuff.c
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+ $(crt_compile) $(CRTSTUFF_T_CFLAGS_S) \
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+ -c $< -DCRT_BEGIN -DCRTSTUFFT_O -DCRTSTUFFS_O
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+endif
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ifeq ($(enable_vtable_verify),yes)
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# These are used in vtable verification; see comments in source files for
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