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Re: [Patch, libfortran] PR 48931 Async-signal-safety of backtrace signal handler

From: Toon Moene <toon at moene dot org>
To: gcc-patches at gcc dot gnu dot org
Date: Tue, 17 May 2011 21:34:06 +0200
Subject: Re: [Patch, libfortran] PR 48931 Async-signal-safety of backtrace signal handler
References: <BANLkTimighoVZpe2Z02-titfhqmyvPWckw@mail.gmail.com> <4DD2B57F.2050404@moene.org>

On 05/17/2011 07:50 PM, Toon Moene wrote:

On 05/14/2011 09:40 PM, Janne Blomqvist wrote:

Hi,

the current version of showing the backtrace is not async-signal-safe
as it uses backtrace_symbols() which, in turn, uses malloc(). The
attached patch changes the backtrace printing functionality to instead
use backtrace_symbols_fd() and pipes.


Great - this would solve a problem I filed a bugzilla report for years
ago (unfortunately, I do not know the number of it).

It was 33905 (2007-10-26).

--
Toon Moene - e-mail: toon@moene.org - phone: +31 346 214290
Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands
At home: http://moene.org/~toon/; weather: http://moene.org/~hirlam/
Progress of GNU Fortran: http://gcc.gnu.org/wiki/GFortran#news

References:
- [Patch, libfortran] PR 48931 Async-signal-safety of backtrace signal handler
  - From: Janne Blomqvist
- Re: [Patch, libfortran] PR 48931 Async-signal-safety of backtrace signal handler
  - From: Toon Moene

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