[Bug libc/15648] multiple definition of `__lll_lock_wait_private'

["knrstaj at gmail dot com" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=15648

Neil <knrstaj at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |knrstaj at gmail dot com

--- Comment #2 from Neil <knrstaj at gmail dot com> ---
Created attachment 7085
  --> http://sourceware.org/bugzilla/attachment.cgi?id=7085&action=edit
multiple definition of `__lll_lock_wait_private'  example

OS version : Ubuntu 12.04
gcc version : gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)


untar the tarball, and use make to reproduce the bug.

I expect there is no error message.
But I get error message when linking.

compiler options "-ftree-parallelize-loops=2 -flto -O1" are necessary.

gcc -ftree-parallelize-loops=2 -flto -O1 core_list_join.i -c -o
core_list_join.o
gcc -ftree-parallelize-loops=2 -flto -O1 core_main.i -c -o core_main.o
gcc -ftree-parallelize-loops=2 -flto -O1 core_matrix.i -c -o core_matrix.o
gcc -ftree-parallelize-loops=2 -flto -O1 core_state.i -c -o core_state.o
gcc -ftree-parallelize-loops=2 -flto -O1 core_util.i -c -o core_util.o
gcc -ftree-parallelize-loops=2 -flto -O1 core_portme.i -c -o core_portme.o
gcc -ftree-parallelize-loops=2 -flto -O1 *.o -static -o coremark.exe
/usr/lib/gcc/i686-linux-gnu/4.6/../../../i386-linux-gnu/libpthread.a(lowlevellock.o):
In function `__lll_lock_wait_private':
/build/buildd/eglibc-2.15/nptl/../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/lowlevellock.S:76:
multiple definition of `__lll_lock_wait_private'
/usr/lib/gcc/i686-linux-gnu/4.6/../../../i386-linux-gnu/libc.a(libc-lowlevellock.o):(.text+0x0):
first defined here
/usr/lib/gcc/i686-linux-gnu/4.6/../../../i386-linux-gnu/libpthread.a(lowlevellock.o):
In function `__lll_unlock_wake_private':
/build/buildd/eglibc-2.15/nptl/../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/lowlevellock.S:332:
multiple definition of `__lll_unlock_wake_private'
/usr/lib/gcc/i686-linux-gnu/4.6/../../../i386-linux-gnu/libc.a(libc-lowlevellock.o):(.text+0x30):
first defined here
collect2: ld returned 1 exit status
make: *** [all] Error 1

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