Fwd: rfc on unwinding through uretprobe trampoline

[Tim Moore <timoore at redhat dot com>]

Sorry if this is a repeat.
Tim

-------- Original Message --------
Subject: rfc on unwinding through uretprobe trampoline
Date: Wed, 16 Dec 2009 18:10:49 +0100
From: Tim Moore <timoore@redhat.com>
To: external-perftools-list@redhat.com

I wrote the following code to assist with doing backtraces though
any uretprobe trampolines that might be on the stack. It has a significant
limitation: it only works when called from a uretprobe handler. This
lets the code bypass any lookup, and consequent locking, of the uprobes
proc and thread structures. I'm wondering if this function is sufficiently
useful to check in, or whether a general function that works from anywhere
is what's needed. Other comments about the code are welcome too.

Thanks,
Tim

Attachment: 0001-function-to-translate-from-the-uretprobe-trampoline.patch
Description: Text document