diff options
Diffstat (limited to 'arch/arm/kernel/kprobes.h')
| -rw-r--r-- | arch/arm/kernel/kprobes.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/kernel/kprobes.h b/arch/arm/kernel/kprobes.h index 792f2316227..4de2f37b1a8 100644 --- a/arch/arm/kernel/kprobes.h +++ b/arch/arm/kernel/kprobes.h @@ -36,4 +36,10 @@ void __init arm_kprobe_decode_init(void); extern kprobe_check_cc * const kprobe_condition_checks[16]; +/* + * Test if load/store instructions writeback the address register. + * if P (bit 24) == 0 or W (bit 21) == 1 + */ +#define is_writeback(insn) ((insn ^ 0x01000000) & 0x01200000) + #endif /* _ARM_KERNEL_KPROBES_H */ |