From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 29509 invoked by alias); 2 May 2012 22:52:53 -0000 Received: (qmail 29500 invoked by uid 22791); 2 May 2012 22:52:52 -0000 X-SWARE-Spam-Status: No, hits=-4.3 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 02 May 2012 22:52:39 +0000 From: "asharif at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug gcov-profile/49484] gcov crash if two(or more) forks happen at the same time Date: Wed, 02 May 2012 22:52:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: gcov-profile X-Bugzilla-Keywords: X-Bugzilla-Severity: major X-Bugzilla-Who: asharif at gcc dot gnu.org X-Bugzilla-Status: RESOLVED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.8.0 X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2012-05/txt/msg00210.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49484 --- Comment #25 from asharif at gcc dot gnu.org 2012-05-02 22:52:36 UTC --- Author: asharif Date: Wed May 2 22:52:28 2012 New Revision: 187067 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=187067 Log: Backported r187026 from branches/google/gcc-4_6. 2012-03-12 Richard Guenther * gthr.h (__GTHREAD_MUTEX_INIT_FUNCTION): Adjust specification. * gthr-posix.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define. (__gthread_mutex_init_function): New function. * gthr-single.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define. PR gcov/49484 * libgcov.c: Include gthr.h. (__gcov_flush_mx): New global variable. (init_mx, init_mx_once): New functions. (__gcov_flush): Protect self with a mutex. (__gcov_fork): Re-initialize mutex after forking. * unwind-dw2-fde.c: Change condition under which to use __GTHREAD_MUTEX_INIT_FUNCTION. Modified: branches/google/gcc-4_6_3-mobile/ (props changed) branches/google/gcc-4_6_3-mobile/gcc/ChangeLog.google-4_6 branches/google/gcc-4_6_3-mobile/gcc/gthr-posix.h branches/google/gcc-4_6_3-mobile/gcc/gthr-single.h branches/google/gcc-4_6_3-mobile/gcc/gthr.h branches/google/gcc-4_6_3-mobile/gcc/libgcov.c branches/google/gcc-4_6_3-mobile/gcc/unwind-dw2-fde.c branches/google/gcc-4_6_3-mobile/libgcc/ChangeLog branches/google/gcc-4_6_3-mobile/libgcc/ChangeLog.google-4_6 Propchange: branches/google/gcc-4_6_3-mobile/ ('svn:mergeinfo' modified)