diff options
Diffstat (limited to 'arch/arm/kernel/entry-header.S')
| -rw-r--r-- | arch/arm/kernel/entry-header.S | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S index de23a9beed1..5d702f8900b 100644 --- a/arch/arm/kernel/entry-header.S +++ b/arch/arm/kernel/entry-header.S @@ -37,9 +37,9 @@ #endif .endm - .macro alignment_trap, rtemp + .macro alignment_trap, rtemp, label #ifdef CONFIG_ALIGNMENT_TRAP - ldr \rtemp, .LCcralign + ldr \rtemp, \label ldr \rtemp, [\rtemp] mcr p15, 0, \rtemp, c1, c0 #endif @@ -132,6 +132,10 @@ orrne r5, V7M_xPSR_FRAMEPTRALIGN biceq r5, V7M_xPSR_FRAMEPTRALIGN + @ ensure bit 0 is cleared in the PC, otherwise behaviour is + @ unpredictable + bic r4, #1 + @ write basic exception frame stmdb r2!, {r1, r3-r5} ldmia sp, {r1, r3-r5} @@ -236,11 +240,6 @@ movs pc, lr @ return & move spsr_svc into cpsr .endm - .macro get_thread_info, rd - mov \rd, sp, lsr #13 - mov \rd, \rd, lsl #13 - .endm - @ @ 32-bit wide "mov pc, reg" @ @@ -306,12 +305,6 @@ .endm #endif /* ifdef CONFIG_CPU_V7M / else */ - .macro get_thread_info, rd - mov \rd, sp - lsr \rd, \rd, #13 - mov \rd, \rd, lsl #13 - .endm - @ @ 32-bit wide "mov pc, reg" @ @@ -329,10 +322,10 @@ #ifdef CONFIG_CONTEXT_TRACKING .if \save stmdb sp!, {r0-r3, ip, lr} - bl user_exit + bl context_tracking_user_exit ldmia sp!, {r0-r3, ip, lr} .else - bl user_exit + bl context_tracking_user_exit .endif #endif .endm @@ -341,10 +334,10 @@ #ifdef CONFIG_CONTEXT_TRACKING .if \save stmdb sp!, {r0-r3, ip, lr} - bl user_enter + bl context_tracking_user_enter ldmia sp!, {r0-r3, ip, lr} .else - bl user_enter + bl context_tracking_user_enter .endif #endif .endm |