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-rw-r--r--arch/arm/kernel/ptrace.c28
1 files changed, 3 insertions, 25 deletions
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 97260060bf26..897ade059f58 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -228,34 +228,12 @@ static struct undef_hook thumb_break_hook = {
.fn = break_trap,
};
-static int thumb2_break_trap(struct pt_regs *regs, unsigned int instr)
-{
- unsigned int instr2;
- void __user *pc;
-
- /* Check the second half of the instruction. */
- pc = (void __user *)(instruction_pointer(regs) + 2);
-
- if (processor_mode(regs) == SVC_MODE) {
- instr2 = *(u16 *) pc;
- } else {
- get_user(instr2, (u16 __user *)pc);
- }
-
- if (instr2 == 0xa000) {
- ptrace_break(current, regs);
- return 0;
- } else {
- return 1;
- }
-}
-
static struct undef_hook thumb2_break_hook = {
- .instr_mask = 0xffff,
- .instr_val = 0xf7f0,
+ .instr_mask = 0xffffffff,
+ .instr_val = 0xf7f0a000,
.cpsr_mask = PSR_T_BIT,
.cpsr_val = PSR_T_BIT,
- .fn = thumb2_break_trap,
+ .fn = break_trap,
};
static int __init ptrace_break_init(void)