Re: perf backtraces off-by-1

[Arun Sharma]

On 8/26/12 9:10 AM, Peter Zijlstra wrote:
> On Fri, 2012-08-24 at 15:13 -0700, Arun Sharma wrote:
>
> >   One option is to support
> > this for user mode only, with code to detect signal frames. Any other
> > ideas?
> I guess we'd need to see what that patch would look like... :-)

It used to look like this:

http://git.savannah.gnu.org/gitweb/?p=libunwind.git;a=commitdiff;h=92cc7fd78a5a79c4bb5f85bfb7d7fb025df9cd5a

These days we just look at dwarf augmentation string:

http://git.savannah.gnu.org/gitweb/?p=libunwind.git;a=blob;f=src/dwarf/Gfde.c;h=8659624b0320c514057861a259b6efe1b605bbf3;hb=HEAD#l189

 -Arun
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/