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powerpc: No need to use dot symbols when branching to a function

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binutils is smart enough to know that a branch to a function
descriptor is actually a branch to the functions text address.

Alan tells me that binutils has been doing this for 9 years.

Signed-off-by: Anton Blanchard <anton@samba.org>
This commit is contained in:
Anton Blanchard
2014-02-04 16:04:35 +11:00
parent 58aedccb19
commit b1576fec7f
26 changed files with 271 additions and 271 deletions
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140
arch/powerpc/kernel/exceptions-64s.S
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@@ -132,12 +132,12 @@ BEGIN_FTR_SECTION
#endif
beq cr1,2f
b .power7_wakeup_noloss
2: b .power7_wakeup_loss
b power7_wakeup_noloss
2: b power7_wakeup_loss
/* Fast Sleep wakeup on PowerNV */
8: GET_PACA(r13)
b .power7_wakeup_tb_loss
b power7_wakeup_tb_loss
9:
END_FTR_SECTION_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206)
@@ -211,7 +211,7 @@ data_access_slb_pSeries:
#endif /* __DISABLED__ */
mfspr r12,SPRN_SRR1
#ifndef CONFIG_RELOCATABLE
b .slb_miss_realmode
b slb_miss_realmode
#else
/*
* We can't just use a direct branch to .slb_miss_realmode
@@ -243,7 +243,7 @@ instruction_access_slb_pSeries:
#endif /* __DISABLED__ */
mfspr r12,SPRN_SRR1
#ifndef CONFIG_RELOCATABLE
b .slb_miss_realmode
b slb_miss_realmode
#else
mfctr r11
ld r10,PACAKBASE(r13)
@@ -829,7 +829,7 @@ data_access_slb_relon_pSeries:
mfspr r3,SPRN_DAR
mfspr r12,SPRN_SRR1
#ifndef CONFIG_RELOCATABLE
b .slb_miss_realmode
b slb_miss_realmode
#else
/*
* We can't just use a direct branch to .slb_miss_realmode
@@ -854,7 +854,7 @@ instruction_access_slb_relon_pSeries:
mfspr r3,SPRN_SRR0 /* SRR0 is faulting address */
mfspr r12,SPRN_SRR1
#ifndef CONFIG_RELOCATABLE
b .slb_miss_realmode
b slb_miss_realmode
#else
mfctr r11
ld r10,PACAKBASE(r13)
@@ -966,7 +966,7 @@ system_call_entry:
b system_call_common
ppc64_runlatch_on_trampoline:
b .__ppc64_runlatch_on
b __ppc64_runlatch_on
/*
* Here we have detected that the kernel stack pointer is bad.
@@ -1025,7 +1025,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_CFAR)
std r12,RESULT(r1)
std r11,STACK_FRAME_OVERHEAD-16(r1)
1: addi r3,r1,STACK_FRAME_OVERHEAD
bl .kernel_bad_stack
bl kernel_bad_stack
b 1b
/*
@@ -1046,7 +1046,7 @@ data_access_common:
ld r3,PACA_EXGEN+EX_DAR(r13)
lwz r4,PACA_EXGEN+EX_DSISR(r13)
li r5,0x300
b .do_hash_page /* Try to handle as hpte fault */
b do_hash_page /* Try to handle as hpte fault */
.align 7
.globl h_data_storage_common
@@ -1056,11 +1056,11 @@ h_data_storage_common:
mfspr r10,SPRN_HDSISR
stw r10,PACA_EXGEN+EX_DSISR(r13)
EXCEPTION_PROLOG_COMMON(0xe00, PACA_EXGEN)
bl .save_nvgprs
bl save_nvgprs
DISABLE_INTS
addi r3,r1,STACK_FRAME_OVERHEAD
bl .unknown_exception
b .ret_from_except
bl unknown_exception
b ret_from_except
.align 7
.globl instruction_access_common
@@ -1071,7 +1071,7 @@ instruction_access_common:
ld r3,_NIP(r1)
andis. r4,r12,0x5820
li r5,0x400
b .do_hash_page /* Try to handle as hpte fault */
b do_hash_page /* Try to handle as hpte fault */
STD_EXCEPTION_COMMON(0xe20, h_instr_storage, .unknown_exception)
@@ -1088,7 +1088,7 @@ slb_miss_user_common:
stw r9,PACA_EXGEN+EX_CCR(r13)
std r10,PACA_EXGEN+EX_LR(r13)
std r11,PACA_EXGEN+EX_SRR0(r13)
bl .slb_allocate_user
bl slb_allocate_user
ld r10,PACA_EXGEN+EX_LR(r13)
ld r3,PACA_EXGEN+EX_R3(r13)
@@ -1131,9 +1131,9 @@ slb_miss_fault:
unrecov_user_slb:
EXCEPTION_PROLOG_COMMON(0x4200, PACA_EXGEN)
DISABLE_INTS
bl .save_nvgprs
bl save_nvgprs
1: addi r3,r1,STACK_FRAME_OVERHEAD
bl .unrecoverable_exception
bl unrecoverable_exception
b 1b
#endif /* __DISABLED__ */
@@ -1158,10 +1158,10 @@ machine_check_common:
lwz r4,PACA_EXGEN+EX_DSISR(r13)
std r3,_DAR(r1)
std r4,_DSISR(r1)
bl .save_nvgprs
bl save_nvgprs
addi r3,r1,STACK_FRAME_OVERHEAD
bl .machine_check_exception
b .ret_from_except
bl machine_check_exception
b ret_from_except
.align 7
.globl alignment_common
@@ -1175,31 +1175,31 @@ alignment_common:
lwz r4,PACA_EXGEN+EX_DSISR(r13)
std r3,_DAR(r1)
std r4,_DSISR(r1)
bl .save_nvgprs
bl save_nvgprs
DISABLE_INTS
addi r3,r1,STACK_FRAME_OVERHEAD
bl .alignment_exception
b .ret_from_except
bl alignment_exception
b ret_from_except
.align 7
.globl program_check_common
program_check_common:
EXCEPTION_PROLOG_COMMON(0x700, PACA_EXGEN)
bl .save_nvgprs
bl save_nvgprs
DISABLE_INTS
addi r3,r1,STACK_FRAME_OVERHEAD
bl .program_check_exception
b .ret_from_except
bl program_check_exception
b ret_from_except
.align 7
.globl fp_unavailable_common
fp_unavailable_common:
EXCEPTION_PROLOG_COMMON(0x800, PACA_EXGEN)
bne 1f /* if from user, just load it up */
bl .save_nvgprs
bl save_nvgprs
DISABLE_INTS
addi r3,r1,STACK_FRAME_OVERHEAD
bl .kernel_fp_unavailable_exception
bl kernel_fp_unavailable_exception
BUG_OPCODE
1:
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
@@ -1211,15 +1211,15 @@ BEGIN_FTR_SECTION
bne- 2f
END_FTR_SECTION_IFSET(CPU_FTR_TM)
#endif
bl .load_up_fpu
bl load_up_fpu
b fast_exception_return
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
2: /* User process was in a transaction */
bl .save_nvgprs
bl save_nvgprs
DISABLE_INTS
addi r3,r1,STACK_FRAME_OVERHEAD
bl .fp_unavailable_tm
b .ret_from_except
bl fp_unavailable_tm
b ret_from_except
#endif
.align 7
.globl altivec_unavailable_common
@@ -1237,24 +1237,24 @@ BEGIN_FTR_SECTION
bne- 2f
END_FTR_SECTION_NESTED(CPU_FTR_TM, CPU_FTR_TM, 69)
#endif
bl .load_up_altivec
bl load_up_altivec
b fast_exception_return
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
2: /* User process was in a transaction */
bl .save_nvgprs
bl save_nvgprs
DISABLE_INTS
addi r3,r1,STACK_FRAME_OVERHEAD
bl .altivec_unavailable_tm
b .ret_from_except
bl altivec_unavailable_tm
b ret_from_except
#endif
1:
END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
#endif
bl .save_nvgprs
bl save_nvgprs
DISABLE_INTS
addi r3,r1,STACK_FRAME_OVERHEAD
bl .altivec_unavailable_exception
b .ret_from_except
bl altivec_unavailable_exception
b ret_from_except
.align 7
.globl vsx_unavailable_common
@@ -1272,23 +1272,23 @@ BEGIN_FTR_SECTION
bne- 2f
END_FTR_SECTION_NESTED(CPU_FTR_TM, CPU_FTR_TM, 69)
#endif
b .load_up_vsx
b load_up_vsx
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
2: /* User process was in a transaction */
bl .save_nvgprs
bl save_nvgprs
DISABLE_INTS
addi r3,r1,STACK_FRAME_OVERHEAD
bl .vsx_unavailable_tm
b .ret_from_except
bl vsx_unavailable_tm
b ret_from_except
#endif
1:
END_FTR_SECTION_IFSET(CPU_FTR_VSX)
#endif
bl .save_nvgprs
bl save_nvgprs
DISABLE_INTS
addi r3,r1,STACK_FRAME_OVERHEAD
bl .vsx_unavailable_exception
b .ret_from_except
bl vsx_unavailable_exception
b ret_from_except
STD_EXCEPTION_COMMON(0xf60, facility_unavailable, .facility_unavailable_exception)
STD_EXCEPTION_COMMON(0xf80, hv_facility_unavailable, .facility_unavailable_exception)
@@ -1386,9 +1386,9 @@ _GLOBAL(opal_mc_secondary_handler)
machine_check_handle_early:
std r0,GPR0(r1) /* Save r0 */
EXCEPTION_PROLOG_COMMON_3(0x200)
bl .save_nvgprs
bl save_nvgprs
addi r3,r1,STACK_FRAME_OVERHEAD
bl .machine_check_early
bl machine_check_early
ld r12,_MSR(r1)
#ifdef CONFIG_PPC_P7_NAP
/*
@@ -1408,11 +1408,11 @@ machine_check_handle_early:
/* Supervisor state loss */
li r0,1
stb r0,PACA_NAPSTATELOST(r13)
3: bl .machine_check_queue_event
3: bl machine_check_queue_event
MACHINE_CHECK_HANDLER_WINDUP
GET_PACA(r13)
ld r1,PACAR1(r13)
b .power7_enter_nap_mode
b power7_enter_nap_mode
4:
#endif
/*
@@ -1444,7 +1444,7 @@ machine_check_handle_early:
andi. r11,r12,MSR_RI
bne 2f
1: addi r3,r1,STACK_FRAME_OVERHEAD
bl .unrecoverable_exception
bl unrecoverable_exception
b 1b
2:
/*
@@ -1452,7 +1452,7 @@ machine_check_handle_early:
* Queue up the MCE event so that we can log it later, while
* returning from kernel or opal call.
*/
bl .machine_check_queue_event
bl machine_check_queue_event
MACHINE_CHECK_HANDLER_WINDUP
rfid
9:
@@ -1477,7 +1477,7 @@ _GLOBAL(slb_miss_realmode)
stw r9,PACA_EXSLB+EX_CCR(r13) /* save CR in exc. frame */
std r10,PACA_EXSLB+EX_LR(r13) /* save LR */
bl .slb_allocate_realmode
bl slb_allocate_realmode
/* All done -- return from exception. */
@@ -1517,9 +1517,9 @@ _GLOBAL(slb_miss_realmode)
unrecov_slb:
EXCEPTION_PROLOG_COMMON(0x4100, PACA_EXSLB)
DISABLE_INTS
bl .save_nvgprs
bl save_nvgprs
1: addi r3,r1,STACK_FRAME_OVERHEAD
bl .unrecoverable_exception
bl unrecoverable_exception
b 1b
@@ -1573,7 +1573,7 @@ END_MMU_FTR_SECTION_IFCLR(MMU_FTR_SLB)
*
* at return r3 = 0 for success, 1 for page fault, negative for error
*/
bl .hash_page /* build HPTE if possible */
bl hash_page /* build HPTE if possible */
cmpdi r3,0 /* see if hash_page succeeded */
/* Success */
@@ -1587,35 +1587,35 @@ handle_page_fault:
11: ld r4,_DAR(r1)
ld r5,_DSISR(r1)
addi r3,r1,STACK_FRAME_OVERHEAD
bl .do_page_fault
bl do_page_fault
cmpdi r3,0
beq+ 12f
bl .save_nvgprs
bl save_nvgprs
mr r5,r3
addi r3,r1,STACK_FRAME_OVERHEAD
lwz r4,_DAR(r1)
bl .bad_page_fault
b .ret_from_except
bl bad_page_fault
b ret_from_except
/* We have a data breakpoint exception - handle it */
handle_dabr_fault:
bl .save_nvgprs
bl save_nvgprs
ld r4,_DAR(r1)
ld r5,_DSISR(r1)
addi r3,r1,STACK_FRAME_OVERHEAD
bl .do_break
12: b .ret_from_except_lite
bl do_break
12: b ret_from_except_lite
/* We have a page fault that hash_page could handle but HV refused
* the PTE insertion
*/
13: bl .save_nvgprs
13: bl save_nvgprs
mr r5,r3
addi r3,r1,STACK_FRAME_OVERHEAD
ld r4,_DAR(r1)
bl .low_hash_fault
b .ret_from_except
bl low_hash_fault
b ret_from_except
/*
* We come here as a result of a DSI at a point where we don't want
@@ -1624,16 +1624,16 @@ handle_dabr_fault:
* were soft-disabled. We want to invoke the exception handler for
* the access, or panic if there isn't a handler.
*/
77: bl .save_nvgprs
77: bl save_nvgprs
mr r4,r3
addi r3,r1,STACK_FRAME_OVERHEAD
li r5,SIGSEGV
bl .bad_page_fault
b .ret_from_except
bl bad_page_fault
b ret_from_except
/* here we have a segment miss */
do_ste_alloc:
bl .ste_allocate /* try to insert stab entry */
bl ste_allocate /* try to insert stab entry */
cmpdi r3,0
bne- handle_page_fault
b fast_exception_return