This is a note to let you know that I've just added the patch titled
sh: Fix ptrace hw_breakpoint handling
to the 2.6.37-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
sh-fix-ptrace-hw_breakpoint-handling.patch
and it can be found in the queue-2.6.37 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From fb7f045ace0624f1e59a7db8497e460bd54b1cbc Mon Sep 17 00:00:00 2001
From: David Engraf <[email protected]>
Date: Wed, 23 Mar 2011 11:35:42 +0000
Subject: sh: Fix ptrace hw_breakpoint handling
From: David Engraf <[email protected]>
commit fb7f045ace0624f1e59a7db8497e460bd54b1cbc upstream.
Since commit 34d0b5af50a063cded842716633501b38ff815fb it is no longer
possible to debug an application using singlestep. The old commit
converted singlestep handling via ptrace to hw_breakpoints. The
hw_breakpoint is disabled when an event is triggered and not re-enabled
again. This patch re-enables the existing hw_breakpoint before the
existing breakpoint is reused.
Signed-off-by: David Engraf <[email protected]>
Signed-off-by: Paul Mundt <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/sh/kernel/ptrace_32.c | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/sh/kernel/ptrace_32.c
+++ b/arch/sh/kernel/ptrace_32.c
@@ -101,6 +101,8 @@ static int set_single_step(struct task_s
attr = bp->attr;
attr.bp_addr = addr;
+ /* reenable breakpoint */
+ attr.disabled = false;
err = modify_user_hw_breakpoint(bp, &attr);
if (unlikely(err))
return err;
Patches currently in stable-queue which might be from [email protected] are
queue-2.6.37/sh-fix-ptrace-hw_breakpoint-handling.patch
_______________________________________________
stable mailing list
[email protected]
http://linux.kernel.org/mailman/listinfo/stable
