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Remove some unnecessary indirection and jump right to the handler functions.

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This commit is contained in:
ian 2014-03-11 15:46:03 +00:00
parent ef589c91da
commit 61df5ff7b9
1 changed files with 3 additions and 36 deletions
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39
sys/arm/arm/exception.S
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@ -322,20 +322,9 @@ ASENTRY_NP(prefetch_abort_entry)
sub lr, lr, #0x00000004 /* Adjust the lr */
PUSHFRAMEINSVC
ldr r1, Lprefetch_abort_handler_address
adr lr, exception_exit
mov r0, sp /* pass the stack pointer as r0 */
ldr pc, [r1]
Lprefetch_abort_handler_address:
.word _C_LABEL(prefetch_abort_handler_address)
.data
.global _C_LABEL(prefetch_abort_handler_address)
_C_LABEL(prefetch_abort_handler_address):
.word prefetch_abort_handler
b prefetch_abort_handler
END(prefetch_abort_entry)
/*
@ -352,18 +341,9 @@ ASENTRY_NP(data_abort_entry)
sub lr, lr, #0x00000008 /* Adjust the lr */
PUSHFRAMEINSVC /* Push trap frame and switch */
/* to SVC32 mode */
ldr r1, Ldata_abort_handler_address
adr lr, exception_exit
mov r0, sp /* pass the stack pointer as r0 */
ldr pc, [r1]
Ldata_abort_handler_address:
.word _C_LABEL(data_abort_handler_address)
.data
.global _C_LABEL(data_abort_handler_address)
_C_LABEL(data_abort_handler_address):
.word data_abort_handler
b data_abort_handler
END(data_abort_entry)
/*
@ -435,23 +415,10 @@ ASENTRY_NP(undefined_entry)
sub lr, lr, #0x00000004 /* Adjust the lr */
PUSHFRAMEINSVC /* Push trap frame and switch */
/* to SVC32 mode */
ldr r1, Lundefined_handler_address
adr lr, exception_exit
mov r0, sp /* pass the stack pointer as r0 */
ldr pc, [r1]
END(undefined_entry)
ASENTRY_NP(undefinedinstruction_bounce)
b undefinedinstruction
END(undefinedinstruction_bounce)
Lundefined_handler_address:
.word _C_LABEL(undefined_handler_address)
.data
.global _C_LABEL(undefined_handler_address)
_C_LABEL(undefined_handler_address):
.word undefinedinstruction_bounce
END(undefined_entry)
/*
* Entry point for FIQ interrupts.