gprof

[Alexandre Biancalana]

Any Ideas ?

On 4/19/06, Alexandre Biancalana <biancalana at gmail.com> wrote:
>
> Hi list,
>
>   I'm trying to compile my C application with gprof but it is not working.
> This is a multithreaded program that use mysql and openssl libraries.
>   Reading the man page I see that is need add -pg to the compile command
> line, but when a do this the following error occurs at linking time
>
> $ gcc -L/usr/local/lib/mysql -Wall -I. -I.. -I/usr/local/include/mysql -o
> serverd ../log.o ../mem.o ../misc.o ../threads_wrapper.o ../openssl.o db.o
> main.o request.o ssl_server.o ssl_socket.o threads.o threads_control.o
> -pthread -lmysqlclient_r -lssl -pg
> /lib/libcrypto.so.4: undefined reference to `sysconf'
> /lib/libcrypto.so.4: undefined reference to `times'
> /lib/libz.so.3: undefined reference to `feof'
> /lib/libm.so.4: undefined reference to `ldexp'
> /lib/libcrypto.so.4: undefined reference to `chmod'
> /lib/libz.so.3: undefined reference to `clearerr'
> /lib/libm.so.4: undefined reference to `isnan'
> *** Error code 1
>
> Stop in /usr/home/ale/personal/ale_projects/works/program/server.
>
> I tried to substitute the -pg compiler flag by -lc_p, with this flag the
> program compile but is not linked with libc_p and don't generate the gprof
> output file...
>
> $ gcc -L/usr/local/lib/mysql -Wall -I. -I.. -I/usr/local/include/mysql
> -lc_p -o serverd ../log.o ../mem.o ../misc.o ../threads_wrapper.o
> ../openssl.o db.o main.o request.o ssl_server.o ssl_socket.o threads.othreads_control.o -pthread -lmysqlclient_r -lssl
> /usr/lib/libc.so: warning: warning: this program uses f_prealloc(), which
> is not recommended.
>
> $ ldd serverd
> serverd:
>         libmysqlclient_r.so.14 =>
> /usr/local/lib/mysql/libmysqlclient_r.so.14 (0x28099000)
>         libssl.so.4 => /usr/lib/libssl.so.4 (0x280ed000)
>         libpthread.so.2 => /usr/lib/libpthread.so.2 (0x2811b000)
>         libc.so.6 => /lib/libc.so.6 (0x28140000)
>         libcrypto.so.4 => /lib/libcrypto.so.4 (0x28217000)
>         libcrypt.so.3 => /lib/libcrypt.so.3 (0x28309000)
>         libm.so.4 => /lib/libm.so.4 (0x28321000)
>         libz.so.3 => /lib/libz.so.3 (0x28337000)
>
>
> This is my system:
> FreeBSD Cruel 6.0-STABLE FreeBSD 6.0-STABLE #0: Tue Jan  3 15:40:07 UTC
> 2006     root at Cruel:/usr/src/sys/i386/compile/CRUEL  i386
>
>   Any ideas ?
>
>
>  Best Regards,
> Alexandre Biancalana
>