Bug#637360: backtrace() doesn't work on armel

[Aurelien Jarno <aurelien@aurel32.net>]

# Restoring original tags and severity
severity 637360 normal
tag 637360 - upstream 
tag 637360 - wontfix
thanks

On Wed, Aug 10, 2011 at 06:15:59PM -0500, Jonathan Nieder wrote:
> severity 637360 wishlist
> retitle 637360 [arm] backtrace() requires unwind information
> # unlikely to be fixed any time soon
> tags 637360 + upstream wontfix
> quit
> 
> Hi Stéphane,
> 
> Stéphane Glondu wrote:
> 
> >   #include <execinfo.h>
> >
> >   int main() {
> >     void *buffer[100];
> >     return backtrace(buffer, 100);
> >   }
> >
> > returns 0. It returns with a non-zero status (3 everywhere I've tried
> > myself) on all other release architectures.
> >
> > Is that expected?
> 
> I'm surprised it works on mips.  Building with -funwind-tables should
> help.
> 

Backtrace code for ARM EABI has been added in glibc 2.11 [1], and is 
based on unwind information. -funwind-tables is therefore necessary to 
get it working, and then backtrace() is fully functional.

I therefore don't see the need to tag this bug as wontfix. In my opinion
in can even be closed.

[1] http://sourceware.org/ml/libc-ports/2009-06/msg00012.html

-- 
Aurelien Jarno	                        GPG: 1024D/F1BCDB73
aurelien@aurel32.net                 http://www.aurel32.net