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From: "asharif at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug gcov-profile/57115] New: Cannot merge separate single counters for function
Date: Mon, 29 Apr 2013 19:48:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57115

             Bug #: 57115
           Summary: Cannot merge separate single counters for function
    Classification: Unclassified
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: gcov-profile
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: asharif@gcc.gnu.org


Created attachment 29975
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29975
source + .gcda file.

These files are from profiling WebKit.

To reproduce the error, run:

g++ -Werror -pthread -fno-exceptions -fno-strict-aliasing -Wall
-Wno-unused-parameter -Wno-missing-field-initializers -fvisibility=hidden -pipe
-fPIC -g -fno-strict-aliasing -O2 -fno-ident -fdata-sections
-ffunction-sections -g -Wno-c++0x-compat -fno-rtti -fno-threadsafe-statics
-fvisibility-inlines-hidden -Wsign-compare -fstack-protector-strong
-fprofile-use -fprofile-correction -o EventContext.o EventContext.ii

This was run on a system that defines TARGET_POSIX_IO so there shouldn't be a
problem writing profiles from multiple threads/processes, right?