On 04/06, Oleg Nesterov wrote: > > But I'll try to cleanup this patch...
See v2 below. ------------------------------------------------------------------------------- Subject: [RFC PATCH v2 6/6] uprobes/x86: Emulate rip-relative conditional "near" jmp's It seems that 16bit condi jmp is just 0x0f + short_jump_opc_plus_0x10. Reported-by: Jonathan Lebon <[email protected]> Signed-off-by: Oleg Nesterov <[email protected]> --- arch/x86/kernel/uprobes.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c index 3865d8b..dae02f9 100644 --- a/arch/x86/kernel/uprobes.c +++ b/arch/x86/kernel/uprobes.c @@ -591,6 +591,10 @@ static int ttt_setup_xol_ops(struct arch_uprobe *auprobe, struct insn *insn) auprobe->ttt.opc1 = opc1; break; + case 0x0f: + if (insn->opcode.nbytes != 2) + return -ENOSYS; + opc1 = OPCODE2(insn) - 0x10; default: if (!is_cond_jmp_opcode(opc1)) return -ENOSYS; -- 1.5.5.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
