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authorIngo Molnar <mingo@elte.hu>2010-07-21 19:43:03 (GMT)
committerIngo Molnar <mingo@elte.hu>2010-07-21 19:43:06 (GMT)
commit9dcdbf7a33d9018ac5d45debcf261be648bdd56a (patch)
treebbcc1a018f11ff76cd7ce174ef3ffe2c02da07ee /arch/arm/kernel/kprobes-decode.c
parentcc5edb0eb9ce892b530e34a5d110382483587942 (diff)
parentcd5b8f8755a89a57fc8c408d284b8b613f090345 (diff)
downloadlinux-fsl-qoriq-9dcdbf7a33d9018ac5d45debcf261be648bdd56a.tar.xz
Merge branch 'linus' into perf/core
Merge reason: Pick up the latest perf fixes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/kernel/kprobes-decode.c')
-rw-r--r--arch/arm/kernel/kprobes-decode.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm/kernel/kprobes-decode.c b/arch/arm/kernel/kprobes-decode.c
index da1f949..8bccbfa 100644
--- a/arch/arm/kernel/kprobes-decode.c
+++ b/arch/arm/kernel/kprobes-decode.c
@@ -583,13 +583,14 @@ static void __kprobes emulate_ldr(struct kprobe *p, struct pt_regs *regs)
{
insn_llret_3arg_fn_t *i_fn = (insn_llret_3arg_fn_t *)&p->ainsn.insn[0];
kprobe_opcode_t insn = p->opcode;
+ long ppc = (long)p->addr + 8;
union reg_pair fnr;
int rd = (insn >> 12) & 0xf;
int rn = (insn >> 16) & 0xf;
int rm = insn & 0xf;
long rdv;
- long rnv = regs->uregs[rn];
- long rmv = regs->uregs[rm]; /* rm/rmv may be invalid, don't care. */
+ long rnv = (rn == 15) ? ppc : regs->uregs[rn];
+ long rmv = (rm == 15) ? ppc : regs->uregs[rm];
long cpsr = regs->ARM_cpsr;
fnr.dr = insnslot_llret_3arg_rflags(rnv, 0, rmv, cpsr, i_fn);