diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-06-25 15:46:08 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-06-29 10:05:33 +0100 |
| commit | 0402becef94c43bb2bb483653a5cee2fb5049764 (patch) | |
| tree | 259d36e5ff5b33e59660b27b2743d723df083543 /arch/arm/kernel | |
| parent | ac8b9c1ce094d43372d0259de08045ffee745a41 (diff) | |
ARM: entry: prefetch/data abort helpers: avoid corrupting r4
Replace r4 with ip for calling abort helpers - ip is allowed to be
corrupted by called functions in the ABI, so it makes more sense to
use such a register.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel')
| -rw-r--r-- | arch/arm/kernel/entry-armv.S | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index dbe9eb88d550..6855f6dd72d0 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -47,9 +47,9 @@ .macro pabt_helper mov r0, r2 @ pass address of aborted instruction. #ifdef MULTI_PABORT - ldr r4, .LCprocfns + ldr ip, .LCprocfns mov lr, pc - ldr pc, [r4, #PROCESSOR_PABT_FUNC] + ldr pc, [ip, #PROCESSOR_PABT_FUNC] #else bl CPU_PABORT_HANDLER #endif @@ -67,9 +67,9 @@ @ the fault status register in r1. r9 must be preserved. @ #ifdef MULTI_DABORT - ldr r4, .LCprocfns + ldr ip, .LCprocfns mov lr, pc - ldr pc, [r4, #PROCESSOR_DABT_FUNC] + ldr pc, [ip, #PROCESSOR_DABT_FUNC] #else bl CPU_DABORT_HANDLER #endif |