From: Oleg Nesterov <oleg@redhat.com>
Date: Mon, 7 Apr 2014 14:22:58 +0000 (+0200)
Subject: uprobes/x86: Emulate relative conditional "near" jmp's
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~34^2~40^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6cc5e7ff2c38641060f20786a5caf2815edbca5f;p=pandora-kernel.git

uprobes/x86: Emulate relative conditional "near" jmp's

Change branch_setup_xol_ops() to simply use opc1 = OPCODE2(insn) - 0x10
if OPCODE1() == 0x0f; this matches the "short" jmp which checks the same
condition.

Thanks to lib/insn.c, it does the rest correctly. branch->ilen/offs are
correct no matter if this jmp is "near" or "short".

Reported-by: Jonathan Lebon <jlebon@redhat.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Jim Keniston <jkenisto@us.ibm.com>
---

Reading git-diff-tree failed