[PATCH] kprobe: kprobe-booster fix for NX support on i386

From: Masami Hiramatsu
Date: Tue Feb 28 2006 - 23:38:36 EST


Hi, Andrew

Here is the patch to fix kprobe-booster against linux-2.6.16-rc5-mm1.
- Fix to assign the correct address of the instruction buffer.
From linux-2.6.16-rc5, the ainsn.insn on i386 arch became a pointer
instead of an array itself.

Best regards,

--
Masami HIRAMATSU
2nd Research Dept.
Hitachi, Ltd., Systems Development Laboratory
E-mail: hiramatu@xxxxxxxxxxxxxxxxx

Signed-off-by: Masami Hiramatsu <hiramatu@xxxxxxxxxxxxxxxxx>

kprobes.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -Narup a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c
--- a/arch/i386/kernel/kprobes.c 2006-03-01 09:53:22.000000000 +0900
+++ b/arch/i386/kernel/kprobes.c 2006-03-01 09:56:58.000000000 +0900
@@ -313,7 +313,7 @@ static int __kprobes kprobe_handler(stru
!p->post_handler && !p->break_handler ) {
/* Boost up -- we can execute copied instructions directly */
reset_current_kprobe();
- regs->eip = (unsigned long)&p->ainsn.insn;
+ regs->eip = (unsigned long)p->ainsn.insn;
preempt_enable_no_resched();
return 1;
}

-
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