From: Masami Hiramatsu <mhiramat@redhat.com>
Date: Tue, 18 Dec 2007 17:05:58 +0000 (+0100)
Subject: x86: jprobe bugfix
X-Git-Tag: v2.6.24-rc6~17^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=29b6cd794e73eea7600541d06288a09861ffecb0;p=pandora-kernel.git

x86: jprobe bugfix

jprobe for x86-64 may cause kernel page fault when the jprobe_return()
is called from incorrect function.

- Use jprobe_saved_regs instead getting it from stack.
  (Especially on x86-64, it may get incorrect data, because
   pt_regs can not be get by using container_of(rsp))
- Change the type of stack pointer to unsigned long *.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

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