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ARC: switch to generic ENTRY/END assembler annotations

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With commit 9df62f0544 "arch: use ASM_NL instead of ';'" the generic
macros can handle the arch specific newline quirk. Hence we can get rid
of ARC asm macros and use the "C" style macros.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Vineet Gupta 2014-02-07 13:47:43 +05:30
commit ec7ac6afd0
11 changed files with 54 additions and 70 deletions
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14
arch/arc/include/asm/linkage.h
View file

@ -13,20 +13,6 @@
#define ASM_NL ` /* use '`' to mark new line in macro */
/* Can't use the ENTRY macro in linux/linkage.h
* gas considers ';' as comment vs. newline
*/
.macro ARC_ENTRY name
.global \name
.align 4
\name:
.endm
.macro ARC_EXIT name
#define ASM_PREV_SYM_ADDR(name) .-##name
.size \ name, ASM_PREV_SYM_ADDR(\name)
.endm
/* annotation for data we want in DCCM - if enabled in .config */
.macro ARCFP_DATA nm
#ifdef CONFIG_ARC_HAS_DCCM

2
arch/arc/kernel/ctx_sw_asm.S
View file

@ -62,4 +62,4 @@ __switch_to:
ld.ab blink, [sp, 4]
j [blink]
ARC_EXIT __switch_to
END(__switch_to)

52
arch/arc/kernel/entry.S
View file

@ -141,7 +141,7 @@ VECTOR EV_Extension ; 0x130, Extn Intruction Excp (0x26)
VECTOR reserved ; Reserved Exceptions
.endr
#include <linux/linkage.h> /* ARC_{EXTRY,EXIT} */
#include <linux/linkage.h> /* {EXTRY,EXIT} */
#include <asm/entry.h> /* SAVE_ALL_{INT1,INT2,SYS...} */
#include <asm/errno.h>
#include <asm/arcregs.h>
@ -184,7 +184,7 @@ reserved: ; processor restart
; ---------------------------------------------
; Level 2 ISR: Can interrupt a Level 1 ISR
; ---------------------------------------------
ARC_ENTRY handle_interrupt_level2
ENTRY(handle_interrupt_level2)
; TODO-vineetg for SMP this wont work
; free up r9 as scratchpad
@ -225,14 +225,14 @@ ARC_ENTRY handle_interrupt_level2
b ret_from_exception
ARC_EXIT handle_interrupt_level2
END(handle_interrupt_level2)
#endif
; ---------------------------------------------
; Level 1 ISR
; ---------------------------------------------
ARC_ENTRY handle_interrupt_level1
ENTRY(handle_interrupt_level1)
/* free up r9 as scratchpad */
#ifdef CONFIG_SMP
@ -265,7 +265,7 @@ ARC_ENTRY handle_interrupt_level1
sr r8, [AUX_IRQ_LV12] ; clear bit in Sticky Status Reg
b ret_from_exception
ARC_EXIT handle_interrupt_level1
END(handle_interrupt_level1)
;################### Non TLB Exception Handling #############################
@ -273,7 +273,7 @@ ARC_EXIT handle_interrupt_level1
; Instruction Error Exception Handler
; ---------------------------------------------
ARC_ENTRY instr_service
ENTRY(instr_service)
EXCEPTION_PROLOGUE
@ -284,13 +284,13 @@ ARC_ENTRY instr_service
bl do_insterror_or_kprobe
b ret_from_exception
ARC_EXIT instr_service
END(instr_service)
; ---------------------------------------------
; Memory Error Exception Handler
; ---------------------------------------------
ARC_ENTRY mem_service
ENTRY(mem_service)
EXCEPTION_PROLOGUE
@ -301,13 +301,13 @@ ARC_ENTRY mem_service
bl do_memory_error
b ret_from_exception
ARC_EXIT mem_service
END(mem_service)
; ---------------------------------------------
; Machine Check Exception Handler
; ---------------------------------------------
ARC_ENTRY EV_MachineCheck
ENTRY(EV_MachineCheck)
EXCEPTION_PROLOGUE
@ -331,13 +331,13 @@ ARC_ENTRY EV_MachineCheck
j do_machine_check_fault
ARC_EXIT EV_MachineCheck
END(EV_MachineCheck)
; ---------------------------------------------
; Protection Violation Exception Handler
; ---------------------------------------------
ARC_ENTRY EV_TLBProtV
ENTRY(EV_TLBProtV)
EXCEPTION_PROLOGUE
@ -385,12 +385,12 @@ ARC_ENTRY EV_TLBProtV
b ret_from_exception
ARC_EXIT EV_TLBProtV
END(EV_TLBProtV)
; ---------------------------------------------
; Privilege Violation Exception Handler
; ---------------------------------------------
ARC_ENTRY EV_PrivilegeV
ENTRY(EV_PrivilegeV)
EXCEPTION_PROLOGUE
@ -401,12 +401,12 @@ ARC_ENTRY EV_PrivilegeV
bl do_privilege_fault
b ret_from_exception
ARC_EXIT EV_PrivilegeV
END(EV_PrivilegeV)
; ---------------------------------------------
; Extension Instruction Exception Handler
; ---------------------------------------------
ARC_ENTRY EV_Extension
ENTRY(EV_Extension)
EXCEPTION_PROLOGUE
@ -417,7 +417,7 @@ ARC_ENTRY EV_Extension
bl do_extension_fault
b ret_from_exception
ARC_EXIT EV_Extension
END(EV_Extension)
;######################### System Call Tracing #########################
@ -504,7 +504,7 @@ trap_with_param:
; (2) Break Points
;------------------------------------------------------------------
ARC_ENTRY EV_Trap
ENTRY(EV_Trap)
EXCEPTION_PROLOGUE
@ -534,9 +534,9 @@ ARC_ENTRY EV_Trap
jl [r9] ; Entry into Sys Call Handler
; fall through to ret_from_system_call
ARC_EXIT EV_Trap
END(EV_Trap)
ARC_ENTRY ret_from_system_call
ENTRY(ret_from_system_call)
st r0, [sp, PT_r0] ; sys call return value in pt_regs
@ -546,7 +546,7 @@ ARC_ENTRY ret_from_system_call
;
; If ret to user mode do we need to handle signals, schedule() et al.
ARC_ENTRY ret_from_exception
ENTRY(ret_from_exception)
; Pre-{IRQ,Trap,Exception} K/U mode from pt_regs->status32
ld r8, [sp, PT_status32] ; returning to User/Kernel Mode
@ -726,9 +726,9 @@ not_level1_interrupt:
debug_marker_syscall:
rtie
ARC_EXIT ret_from_exception
END(ret_from_exception)
ARC_ENTRY ret_from_fork
ENTRY(ret_from_fork)
; when the forked child comes here from the __switch_to function
; r0 has the last task pointer.
; put last task in scheduler queue
@ -745,11 +745,11 @@ ARC_ENTRY ret_from_fork
; special case of kernel_thread entry point returning back due to
; kernel_execve() - pretend return from syscall to ret to userland
b ret_from_exception
ARC_EXIT ret_from_fork
END(ret_from_fork)
;################### Special Sys Call Wrappers ##########################
ARC_ENTRY sys_clone_wrapper
ENTRY(sys_clone_wrapper)
SAVE_CALLEE_SAVED_USER
bl @sys_clone
DISCARD_CALLEE_SAVED_USER
@ -759,7 +759,7 @@ ARC_ENTRY sys_clone_wrapper
bnz tracesys_exit
b ret_from_system_call
ARC_EXIT sys_clone_wrapper
END(sys_clone_wrapper)
#ifdef CONFIG_ARC_DW2_UNWIND
; Workaround for bug 94179 (STAR ):

6
arch/arc/lib/memcmp.S
View file

@ -6,7 +6,7 @@
* published by the Free Software Foundation.
*/
#include <asm/linkage.h>
#include <linux/linkage.h>
#ifdef __LITTLE_ENDIAN__
#define WORD2 r2
@ -16,7 +16,7 @@
#define SHIFT r2
#endif
ARC_ENTRY memcmp
ENTRY(memcmp)
or r12,r0,r1
asl_s r12,r12,30
sub r3,r2,1
@ -121,4 +121,4 @@ ARC_ENTRY memcmp
.Lnil:
j_s.d [blink]
mov r0,0
ARC_EXIT memcmp
END(memcmp)

6
arch/arc/lib/memcpy-700.S
View file

@ -6,9 +6,9 @@
* published by the Free Software Foundation.
*/
#include <asm/linkage.h>
#include <linux/linkage.h>
ARC_ENTRY memcpy
ENTRY(memcpy)
or r3,r0,r1
asl_s r3,r3,30
mov_s r5,r0
@ -63,4 +63,4 @@ ARC_ENTRY memcpy
.Lendbloop:
j_s.d [blink]
stb r12,[r5,0]
ARC_EXIT memcpy
END(memcpy)

10
arch/arc/lib/memset.S
View file

@ -6,11 +6,11 @@
* published by the Free Software Foundation.
*/
#include <asm/linkage.h>
#include <linux/linkage.h>
#define SMALL 7 /* Must be at least 6 to deal with alignment/loop issues. */
ARC_ENTRY memset
ENTRY(memset)
mov_s r4,r0
or r12,r0,r2
bmsk.f r12,r12,1
@ -46,14 +46,14 @@ ARC_ENTRY memset
stb.ab r1,[r4,1]
.Ltiny_end:
j_s [blink]
ARC_EXIT memset
END(memset)
; memzero: @r0 = mem, @r1 = size_t
; memset: @r0 = mem, @r1 = char, @r2 = size_t
ARC_ENTRY memzero
ENTRY(memzero)
; adjust bzero args to memset args
mov r2, r1
mov r1, 0
b memset ;tail call so need to tinker with blink
ARC_EXIT memzero
END(memzero)

6
arch/arc/lib/strchr-700.S
View file

@ -11,9 +11,9 @@
presence of the norm instruction makes it easier to operate on whole
words branch-free. */
#include <asm/linkage.h>
#include <linux/linkage.h>
ARC_ENTRY strchr
ENTRY(strchr)
extb_s r1,r1
asl r5,r1,8
bmsk r2,r0,1
@ -130,4 +130,4 @@ ARC_ENTRY strchr
j_s.d [blink]
mov.mi r0,0
#endif /* ENDIAN */
ARC_EXIT strchr
END(strchr)

6
arch/arc/lib/strcmp.S
View file

@ -13,9 +13,9 @@
source 1; however, that would increase the overhead for loop setup / finish,
and strcmp might often terminate early. */
#include <asm/linkage.h>
#include <linux/linkage.h>
ARC_ENTRY strcmp
ENTRY(strcmp)
or r2,r0,r1
bmsk_s r2,r2,1
brne r2,0,.Lcharloop
@ -93,4 +93,4 @@ ARC_ENTRY strcmp
.Lcmpend:
j_s.d [blink]
sub r0,r2,r3
ARC_EXIT strcmp
END(strcmp)

6
arch/arc/lib/strcpy-700.S
View file

@ -16,9 +16,9 @@
there, but the it is not likely to be taken often, and it
would also be likey to cost an unaligned mispredict at the next call. */
#include <asm/linkage.h>
#include <linux/linkage.h>
ARC_ENTRY strcpy
ENTRY(strcpy)
or r2,r0,r1
bmsk_s r2,r2,1
brne.d r2,0,charloop
@ -67,4 +67,4 @@ charloop:
brne.d r3,0,charloop
stb.ab r3,[r10,1]
j [blink]
ARC_EXIT strcpy
END(strcpy)

6
arch/arc/lib/strlen.S
View file

@ -6,9 +6,9 @@
* published by the Free Software Foundation.
*/
#include <asm/linkage.h>
#include <linux/linkage.h>
ARC_ENTRY strlen
ENTRY(strlen)
or r3,r0,7
ld r2,[r3,-7]
ld.a r6,[r3,-3]
@ -80,4 +80,4 @@ ARC_ENTRY strlen
.Learly_end:
b.d .Lend
sub_s.ne r1,r1,r1
ARC_EXIT strlen
END(strlen)

10
arch/arc/mm/tlbex.S
View file

@ -260,7 +260,7 @@ ARCFP_CODE ;Fast Path Code, candidate for ICCM
; I-TLB Miss Exception Handler
;-----------------------------------------------------------------------------
ARC_ENTRY EV_TLBMissI
ENTRY(EV_TLBMissI)
TLBMISS_FREEUP_REGS
@ -293,13 +293,13 @@ ARC_ENTRY EV_TLBMissI
TLBMISS_RESTORE_REGS
rtie
ARC_EXIT EV_TLBMissI
END(EV_TLBMissI)
;-----------------------------------------------------------------------------
; D-TLB Miss Exception Handler
;-----------------------------------------------------------------------------
ARC_ENTRY EV_TLBMissD
ENTRY(EV_TLBMissD)
TLBMISS_FREEUP_REGS
@ -381,6 +381,4 @@ do_slow_path_pf:
bl do_page_fault
b ret_from_exception
ARC_EXIT EV_TLBMissD
ARC_ENTRY EV_TLBMissB ; Bogus entry to measure sz of DTLBMiss hdlr
END(EV_TLBMissD)