xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

128
arch/powerpc/kernel/exceptions-64e.S
View File

@@ -499,7 +499,7 @@ exc_##n##_bad_stack: \
CHECK_NAPPING(); \
addi r3,r1,STACK_FRAME_OVERHEAD; \
bl hdlr; \
b .ret_from_except_lite;
b ret_from_except_lite;
/* This value is used to mark exception frames on the stack. */
.section ".toc","aw"
@@ -550,11 +550,11 @@ interrupt_end_book3e:
CRIT_EXCEPTION_PROLOG(0x100, BOOKE_INTERRUPT_CRITICAL,
PROLOG_ADDITION_NONE)
EXCEPTION_COMMON_CRIT(0x100)
bl .save_nvgprs
bl save_nvgprs
bl special_reg_save
CHECK_NAPPING();
addi r3,r1,STACK_FRAME_OVERHEAD
bl .unknown_exception
bl unknown_exception
b ret_from_crit_except
/* Machine Check Interrupt */
@@ -562,11 +562,11 @@ interrupt_end_book3e:
MC_EXCEPTION_PROLOG(0x000, BOOKE_INTERRUPT_MACHINE_CHECK,
PROLOG_ADDITION_NONE)
EXCEPTION_COMMON_MC(0x000)
bl .save_nvgprs
bl save_nvgprs
bl special_reg_save
CHECK_NAPPING();
addi r3,r1,STACK_FRAME_OVERHEAD
bl .machine_check_exception
bl machine_check_exception
b ret_from_mc_except
/* Data Storage Interrupt */
@@ -612,9 +612,9 @@ interrupt_end_book3e:
std r14,_DSISR(r1)
addi r3,r1,STACK_FRAME_OVERHEAD
ld r14,PACA_EXGEN+EX_R14(r13)
bl .save_nvgprs
bl .program_check_exception
b .ret_from_except
bl save_nvgprs
bl program_check_exception
b ret_from_except
/* Floating Point Unavailable Interrupt */
START_EXCEPTION(fp_unavailable);
@@ -625,13 +625,13 @@ interrupt_end_book3e:
ld r12,_MSR(r1)
andi. r0,r12,MSR_PR;
beq- 1f
bl .load_up_fpu
bl load_up_fpu
b fast_exception_return
1: INTS_DISABLE
bl .save_nvgprs
bl save_nvgprs
addi r3,r1,STACK_FRAME_OVERHEAD
bl .kernel_fp_unavailable_exception
b .ret_from_except
bl kernel_fp_unavailable_exception
b ret_from_except
/* Altivec Unavailable Interrupt */
START_EXCEPTION(altivec_unavailable);
@@ -644,16 +644,16 @@ BEGIN_FTR_SECTION
ld r12,_MSR(r1)
andi. r0,r12,MSR_PR;
beq- 1f
bl .load_up_altivec
bl load_up_altivec
b fast_exception_return
1:
END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
#endif
INTS_DISABLE
bl .save_nvgprs
bl save_nvgprs
addi r3,r1,STACK_FRAME_OVERHEAD
bl .altivec_unavailable_exception
b .ret_from_except
bl altivec_unavailable_exception
b ret_from_except
/* AltiVec Assist */
START_EXCEPTION(altivec_assist);
@@ -662,16 +662,16 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
PROLOG_ADDITION_NONE)
EXCEPTION_COMMON(0x220)
INTS_DISABLE
bl .save_nvgprs
bl save_nvgprs
addi r3,r1,STACK_FRAME_OVERHEAD
#ifdef CONFIG_ALTIVEC
BEGIN_FTR_SECTION
bl .altivec_assist_exception
bl altivec_assist_exception
END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
#else
bl .unknown_exception
bl unknown_exception
#endif
b .ret_from_except
b ret_from_except
/* Decrementer Interrupt */
@@ -687,14 +687,14 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
CRIT_EXCEPTION_PROLOG(0x9f0, BOOKE_INTERRUPT_WATCHDOG,
PROLOG_ADDITION_NONE)
EXCEPTION_COMMON_CRIT(0x9f0)
bl .save_nvgprs
bl save_nvgprs
bl special_reg_save
CHECK_NAPPING();
addi r3,r1,STACK_FRAME_OVERHEAD
#ifdef CONFIG_BOOKE_WDT
bl .WatchdogException
bl WatchdogException
#else
bl .unknown_exception
bl unknown_exception
#endif
b ret_from_crit_except
@@ -712,10 +712,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
PROLOG_ADDITION_NONE)
EXCEPTION_COMMON(0xf20)
INTS_DISABLE
bl .save_nvgprs
bl save_nvgprs
addi r3,r1,STACK_FRAME_OVERHEAD
bl .unknown_exception
b .ret_from_except
bl unknown_exception
b ret_from_except
/* Debug exception as a critical interrupt*/
START_EXCEPTION(debug_crit);
@@ -774,9 +774,9 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
mr r4,r14
ld r14,PACA_EXCRIT+EX_R14(r13)
ld r15,PACA_EXCRIT+EX_R15(r13)
bl .save_nvgprs
bl .DebugException
b .ret_from_except
bl save_nvgprs
bl DebugException
b ret_from_except
kernel_dbg_exc:
b . /* NYI */
@@ -839,9 +839,9 @@ kernel_dbg_exc:
mr r4,r14
ld r14,PACA_EXDBG+EX_R14(r13)
ld r15,PACA_EXDBG+EX_R15(r13)
bl .save_nvgprs
bl .DebugException
b .ret_from_except
bl save_nvgprs
bl DebugException
b ret_from_except
START_EXCEPTION(perfmon);
NORMAL_EXCEPTION_PROLOG(0x260, BOOKE_INTERRUPT_PERFORMANCE_MONITOR,
@@ -850,8 +850,8 @@ kernel_dbg_exc:
INTS_DISABLE
CHECK_NAPPING()
addi r3,r1,STACK_FRAME_OVERHEAD
bl .performance_monitor_exception
b .ret_from_except_lite
bl performance_monitor_exception
b ret_from_except_lite
/* Doorbell interrupt */
MASKABLE_EXCEPTION(0x280, BOOKE_INTERRUPT_DOORBELL,
@@ -862,11 +862,11 @@ kernel_dbg_exc:
CRIT_EXCEPTION_PROLOG(0x2a0, BOOKE_INTERRUPT_DOORBELL_CRITICAL,
PROLOG_ADDITION_NONE)
EXCEPTION_COMMON_CRIT(0x2a0)
bl .save_nvgprs
bl save_nvgprs
bl special_reg_save
CHECK_NAPPING();
addi r3,r1,STACK_FRAME_OVERHEAD
bl .unknown_exception
bl unknown_exception
b ret_from_crit_except
/*
@@ -878,21 +878,21 @@ kernel_dbg_exc:
PROLOG_ADDITION_NONE)
EXCEPTION_COMMON(0x2c0)
addi r3,r1,STACK_FRAME_OVERHEAD
bl .save_nvgprs
bl save_nvgprs
INTS_RESTORE_HARD
bl .unknown_exception
b .ret_from_except
bl unknown_exception
b ret_from_except
/* Guest Doorbell critical Interrupt */
START_EXCEPTION(guest_doorbell_crit);
CRIT_EXCEPTION_PROLOG(0x2e0, BOOKE_INTERRUPT_GUEST_DBELL_CRIT,
PROLOG_ADDITION_NONE)
EXCEPTION_COMMON_CRIT(0x2e0)
bl .save_nvgprs
bl save_nvgprs
bl special_reg_save
CHECK_NAPPING();
addi r3,r1,STACK_FRAME_OVERHEAD
bl .unknown_exception
bl unknown_exception
b ret_from_crit_except
/* Hypervisor call */
@@ -901,10 +901,10 @@ kernel_dbg_exc:
PROLOG_ADDITION_NONE)
EXCEPTION_COMMON(0x310)
addi r3,r1,STACK_FRAME_OVERHEAD
bl .save_nvgprs
bl save_nvgprs
INTS_RESTORE_HARD
bl .unknown_exception
b .ret_from_except
bl unknown_exception
b ret_from_except
/* Embedded Hypervisor priviledged */
START_EXCEPTION(ehpriv);
@@ -912,10 +912,10 @@ kernel_dbg_exc:
PROLOG_ADDITION_NONE)
EXCEPTION_COMMON(0x320)
addi r3,r1,STACK_FRAME_OVERHEAD
bl .save_nvgprs
bl save_nvgprs
INTS_RESTORE_HARD
bl .unknown_exception
b .ret_from_except
bl unknown_exception
b ret_from_except
/* LRAT Error interrupt */
START_EXCEPTION(lrat_error);
@@ -1014,16 +1014,16 @@ storage_fault_common:
mr r5,r15
ld r14,PACA_EXGEN+EX_R14(r13)
ld r15,PACA_EXGEN+EX_R15(r13)
bl .do_page_fault
bl do_page_fault
cmpdi r3,0
bne- 1f
b .ret_from_except_lite
1: bl .save_nvgprs
b ret_from_except_lite
1: bl save_nvgprs
mr r5,r3
addi r3,r1,STACK_FRAME_OVERHEAD
ld r4,_DAR(r1)
bl .bad_page_fault
b .ret_from_except
bl bad_page_fault
b ret_from_except
/*
* Alignment exception doesn't fit entirely in the 0x100 bytes so it
@@ -1035,10 +1035,10 @@ alignment_more:
addi r3,r1,STACK_FRAME_OVERHEAD
ld r14,PACA_EXGEN+EX_R14(r13)
ld r15,PACA_EXGEN+EX_R15(r13)
bl .save_nvgprs
bl save_nvgprs
INTS_RESTORE_HARD
bl .alignment_exception
b .ret_from_except
bl alignment_exception
b ret_from_except
/*
* We branch here from entry_64.S for the last stage of the exception
@@ -1172,7 +1172,7 @@ bad_stack_book3e:
std r12,0(r11)
ld r2,PACATOC(r13)
1: addi r3,r1,STACK_FRAME_OVERHEAD
bl .kernel_bad_stack
bl kernel_bad_stack
b 1b
/*
@@ -1521,13 +1521,13 @@ _GLOBAL(start_initialization_book3e)
* and always use AS 0, so we just set it up to match our link
* address and never use 0 based addresses.
*/
bl .initial_tlb_book3e
bl initial_tlb_book3e
/* Init global core bits */
bl .init_core_book3e
bl init_core_book3e
/* Init per-thread bits */
bl .init_thread_book3e
bl init_thread_book3e
/* Return to common init code */
tovirt(r28,r28)
@@ -1548,7 +1548,7 @@ _GLOBAL(start_initialization_book3e)
*/
_GLOBAL(book3e_secondary_core_init_tlb_set)
li r4,1
b .generic_secondary_smp_init
b generic_secondary_smp_init
_GLOBAL(book3e_secondary_core_init)
mflr r28
@@ -1558,18 +1558,18 @@ _GLOBAL(book3e_secondary_core_init)
bne 2f
/* Setup TLB for this core */
bl .initial_tlb_book3e
bl initial_tlb_book3e
/* We can return from the above running at a different
* address, so recalculate r2 (TOC)
*/
bl .relative_toc
bl relative_toc
/* Init global core bits */
2: bl .init_core_book3e
2: bl init_core_book3e
/* Init per-thread bits */
3: bl .init_thread_book3e
3: bl init_thread_book3e
/* Return to common init code at proper virtual address.
*