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From: "tejohnson at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug gcov-profile/54487] [4.8 Regression] profiledbootstrap broken by r190952
Date: Thu, 13 Sep 2012 04:59:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54487

--- Comment #28 from tejohnson at gcc dot gnu.org 2012-09-13 04:59:18 UTC ---
Author: tejohnson
Date: Thu Sep 13 04:59:14 2012
New Revision: 191238

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=191238
Log:
This fixes PR gcov-profile/54487 where the gcda files were not locked
by the profile-use read, enabling writes by other instrumented compiles
to change the profile in the middle of the profile use read. The GCOV_LOCKED
macro was not set because it was guarded by HOST_HAS_F_SETLKW, which was
never set. The fix is to add a compile test in the configure to set it.

2012-09-12  Teresa Johnson  <tejohnson@google.com>

    PR gcov-profile/54487
    * configure.ac (HOST_HAS_F_SETLKW): Set based on compile
    test using F_SETLKW with fcntl.
    * configure, config.in: Regenerate.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config.in
    trunk/gcc/configure
    trunk/gcc/configure.ac