[Bug nptl/13344] New: Marking all functions which don't have callbacks with the leaf attribute breaks pthread applications.

[cryptooctoploid at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=13344

             Bug #: 13344
           Summary: Marking all functions which don't have callbacks with
                    the leaf attribute breaks pthread applications.
           Product: glibc
           Version: 2.14
            Status: NEW
          Severity: normal
          Priority: P2
         Component: nptl
        AssignedTo: drepper.fsp@gmail.com
        ReportedBy: cryptooctoploid@gmail.com
    Classification: Unclassified


Commit aa78043a4aafe5 marks all functions, which don't have callbacks, with
the leaf attribute. This may break pthreaded apps (for example "git grep"),
because pthread_mutex_{lock,unlock,trylock,timedlock} and 
pthread_cond_{wait,timedwait} , etc. are also marked and therefore gcc
happily optimizes them. 

See: https://bugzilla.redhat.com/show_bug.cgi?id=747377
or: http://thread.gmane.org/gmane.comp.version-control.git/184184

There are two possibilties to solve this issue; either don't mark the pthread
related functions in glibc or teach gcc to unmark those functions.

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