Help Needed : opreport not showing data on user shared lib and the executable file

[Manoj S P <spm...@ya...>]

Hi, 

I have created a small shared library and linked the
same with an C executable. If i execute the C program
it works fine. Even 'ldd <c program>' shows me that
the c program uses the shared library.

~/tests # ldd test_lib
        libmatrix.so.0 => /root/tests/libmatrix.so.0
(0x000002000001b000)
        libc.so.6 => /lib64/tls/libc.so.6
(0x0000020000033000)
        /lib/ld64.so.1 => /lib/ld64.so.1
(0x0000020000000000)

Next step, started OProfile and executed the 'C'
program. But OPreport doesnot show any sign of the c
programs execution.

I created the shared library using the following 

1. gcc -fPIC -Wall -g -c libmatrix.c
2.  gcc -g -shared -Wl,-soname,libmatrix.so.0 -o
libmatrix.so.0.0 libmatrix.o -lc
3.  /sbin/ldconfig -n .
4.  ln -sf libmatrix.so.0 libmatrix.so
5.  gcc -Wall -g -c demo_use.c -o demo_use.o
6.  gcc -g -o demo_use demo_use.o -L. -lhello
7.  LD_LIBRARY_PATH="."
8.  ./demo_use

The opreport data are below (without any sign of the C
program or the Library)

:~/tests # opreport
CPU: CPU with timer interrupt, speed 0 MHz (estimated)
Profiling through timer interrupt
          TIMER:0|
  samples|      %|
------------------
     5467 99.8539 vmlinux
        4  0.0731 bash
        1  0.0183 ld-2.3.3.so
        1  0.0183 libc.so.6
        1  0.0183 libcrypto.so.0.9.7
        1  0.0183 oprofiled





S.P.MANOJ 
IBM Software Labs
Gloden Towers,Bangalore
Ph : 5044205
____________________________________________________________ 
Obstacles are things a person sees when he takes his eyes off his goal. 
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