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authorIngo Molnar <mingo@elte.hu>2010-06-18 10:53:12 +0200
committerIngo Molnar <mingo@elte.hu>2010-06-18 10:53:19 +0200
commit646b1db4956ba8bf748b835b5eba211133d91c2e (patch)
tree061166d873d9da9cf83044a7593ad111787076c5 /arch/powerpc/kernel/kprobes.c
parent0f2c3de2ba110626515234d5d584fb1b0c0749a2 (diff)
parent7e27d6e778cd87b6f2415515d7127eba53fe5d02 (diff)
Merge commit 'v2.6.35-rc3' into perf/core
Merge reason: Go from -rc1 base to -rc3 base, merge in fixes.
Diffstat (limited to 'arch/powerpc/kernel/kprobes.c')
-rw-r--r--arch/powerpc/kernel/kprobes.c14
1 files changed, 2 insertions, 12 deletions
diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index c533525ca56..bc47352deb1 100644
--- a/arch/powerpc/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c
@@ -378,17 +378,6 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
* single-stepped a copy of the instruction. The address of this
* copy is p->ainsn.insn.
*/
-static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs)
-{
- int ret;
- unsigned int insn = *p->ainsn.insn;
-
- regs->nip = (unsigned long)p->addr;
- ret = emulate_step(regs, insn);
- if (ret == 0)
- regs->nip = (unsigned long)p->addr + 4;
-}
-
static int __kprobes post_kprobe_handler(struct pt_regs *regs)
{
struct kprobe *cur = kprobe_running();
@@ -406,7 +395,8 @@ static int __kprobes post_kprobe_handler(struct pt_regs *regs)
cur->post_handler(cur, regs, 0);
}
- resume_execution(cur, regs);
+ /* Adjust nip to after the single-stepped instruction */
+ regs->nip = (unsigned long)cur->addr + 4;
regs->msr |= kcb->kprobe_saved_msr;
/*Restore back the original saved kprobes variables and continue. */