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| author | Alexander Graf <agraf@suse.de> | 2012-10-31 13:36:18 +0100 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2012-10-31 13:36:18 +0100 |
| commit | 0588000eac9ba4178cebade437da3b28e8fad48f (patch) | |
| tree | 697e514a0a0193f17a54f372dd18c5cd3927e154 /arch/x86/kernel/uprobes.c | |
| parent | KVM: PPC: Book3S HV: Fix thinko in try_lock_hpte() (diff) | |
| parent | KVM: do not treat noslot pfn as a error pfn (diff) | |
| download | linux-0588000eac9ba4178cebade437da3b28e8fad48f.tar.xz linux-0588000eac9ba4178cebade437da3b28e8fad48f.zip | |
Merge commit 'origin/queue' into for-queue
Conflicts:
arch/powerpc/include/asm/Kbuild
arch/powerpc/include/uapi/asm/Kbuild
Diffstat (limited to 'arch/x86/kernel/uprobes.c')
| -rw-r--r-- | arch/x86/kernel/uprobes.c | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c index 9538f00827a9..aafa5557b396 100644 --- a/arch/x86/kernel/uprobes.c +++ b/arch/x86/kernel/uprobes.c @@ -651,31 +651,19 @@ void arch_uprobe_abort_xol(struct arch_uprobe *auprobe, struct pt_regs *regs) /* * Skip these instructions as per the currently known x86 ISA. - * 0x66* { 0x90 | 0x0f 0x1f | 0x0f 0x19 | 0x87 0xc0 } + * rep=0x66*; nop=0x90 */ static bool __skip_sstep(struct arch_uprobe *auprobe, struct pt_regs *regs) { int i; for (i = 0; i < MAX_UINSN_BYTES; i++) { - if ((auprobe->insn[i] == 0x66)) + if (auprobe->insn[i] == 0x66) continue; if (auprobe->insn[i] == 0x90) return true; - if (i == (MAX_UINSN_BYTES - 1)) - break; - - if ((auprobe->insn[i] == 0x0f) && (auprobe->insn[i+1] == 0x1f)) - return true; - - if ((auprobe->insn[i] == 0x0f) && (auprobe->insn[i+1] == 0x19)) - return true; - - if ((auprobe->insn[i] == 0x87) && (auprobe->insn[i+1] == 0xc0)) - return true; - break; } return false; |