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Re: glibc-2.3 libc_p.a and libpthread_p.a symbol conflicts


From: Andreas Jaeger
Subject: Re: glibc-2.3 libc_p.a and libpthread_p.a symbol conflicts
Date: Mon, 18 Aug 2003 11:27:14 +0200
User-agent: Gnus/5.1003 (Gnus v5.10.3) XEmacs/21.4 (Portable Code, linux)

"Arthur S Naseef" <address@hidden> writes:

> Attempting to build a static, profiled executable with libc and libpthread
> results in a symbol conflicts on __flockfile, _IO_flockfile, __funlockfile,
> and _IO_funlockfile. Below are the specifics of the glibc versions with
> sample commands that can be used to detect the problem.
>
> Which library should be defining these? Why do both contain them?

for threaded applications, the functions have a different
implementation and therefore need to overwrite the non-thread case.

This works fine in general and should not case any problems.  So, why
is it a problem for you?

Andreas

> Versions
>    GLIBC 2.3 (seen with 2.3.1 and 2.3.2)
>    Linuxthreads
>
> nm -D /lib/libc-2.3.1.so | grep lockfile
>    000621a0 T _IO_flockfile
>    000621e0 T _IO_ftrylockfile
>    00062220 T _IO_funlockfile
>    000621a0 W flockfile
>    000621e0 W ftrylockfile
>    00062220 W funlockfile
>
> nm -D /lib/libpthread.so.0 | grep lockfile
>    00009f50 T _IO_flockfile
>    00009f90 T _IO_ftrylockfile
>    00009f70 T _IO_funlockfile
>    00009f50 W flockfile
>    00009f90 W ftrylockfile
>    00009f70 W funlockfile
>
>
>
>
>
>
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> Bug-glibc mailing list
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>

Andreas
-- 
 Andreas Jaeger, address@hidden, http://www.suse.de/~aj
  SuSE Linux AG, Deutschherrnstr. 15-19, 90429 Nürnberg, Germany
   GPG fingerprint = 93A3 365E CE47 B889 DF7F  FED1 389A 563C C272 A126

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