Fwd: pthread_barrier_wait help
Sat Aug 17 07:23:00 GMT 2013
On Saturday, August 17, 2013, Jagadish_gmail <email@example.com> wrote:
> I have installed glibc using the following command ..
> I have added my new function pthread_barrier_wait_jag()
> bash$../glibc-2.15/configure --prefix=/home/jbk5155/glibc/glibc-build/ --enable-addon=pthread
> <configure successful>
> bash$sudo make
> <make was successful>
> bash$sudo make install
> <make install was successful>
> I see my function being listed with nm command listed below ..
> nm libpthread.so.0 | grep "jag"
> but when I try to compile my testcase with -L/home/jbk5155/glibc/glibc-build/ -lpthread ... testcase compiled successfully but when I do a ldd I still see the default libpthread.so.0 is being picked up
> jbk5155@jbk5155:~/splash/codes/kernels/fft$ ldd FFT
> linux-gate.so.1 => (0xb7741000)
> libpthread.so.0 => /lib/i386-linux-gnu/libpthread.so.0 (0xb7712000)
> libm.so.6 => /lib/i386-linux-gnu/libm.so.6 (0xb76e6000)
> libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0xb753b000)
> /lib/ld-linux.so.2 (0xb7742000)
> and hence when I run it my testcase crashes saying pthread_barrier_wait_jag() is not found. Can you please let me know what I am doing wrong?
> Thanks and Regards,
> -------- Original Message --------
> Subject: pthread_barrier_wait help
> Date: Wed, 14 Aug 2013 13:49:18 -0700
> From: Jagadish_gmail <firstname.lastname@example.org>
> To: email@example.com
> I am a graduate student and I am looking for some help with glibc. I
> am working on a project where I am trying to modify
> pthread_barrier_wait.c() code. I see that the hand-optimized
> pthread_barrier_wait.S (assembler version) is currently being used as I
> am on X86 architecture.
> I want my build scripts to use the generic pthread_barrier_wait.c
> instead of the hand-optimized pthread_barrier_wait.S.
> Can you please let me know what changes do I need to make to use this c
> version of the code instead of the hand-optimized assembler version ?
> Thanks and Regards,
Try removing absolute path in the linker script libpthread.so. Ld is
most probably picking library from host machine rather than from your
custom libc ?
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