i am getting same profile(for gcc) for all testcases

i am getting same profile(for gcc) for all testcases

[perugupa]

Hi,
  i have compiled gcc3.2.3 with profiling enabled. i am using the
  regression test suite to generate profiles for gcc (not for the test
  case it self ie. i want to see whats heppening in gcc).i compiled gcc
  like...
../gcc/configure --prefix=/src/inst --enable-languages=c,c++ \
     --disable-checking
   $ make -j8 all CFLAGS="-g -profile -O2"
   $ make install


this is what i am using to generate profile file.
  gcc test.c
  gprof -a /root/install/bin/gcc gmon.out > output

I also tried this one
gprof -a /root/install/lib/gcc/TARGET/VERSION/cc1 gmon.out > output

 but i am getting the same profiles for any program i compile.i have been
 struggling to get this done for a long time.can somebody please help
 me.thanx in advance.
regards
nath.

Re: i am getting same profile(for gcc) for all testcases

[Jim Wilson]

perugupa@csee.wvu.edu wrote:
>    $ make -j8 all CFLAGS="-g -profile -O2"

-profile isn't a gcc option.  This might be the problem.  Try -p or -pg. 
  -pg will give more info.

> this is what i am using to generate profile file.
>   gcc test.c
>   gprof -a /root/install/bin/gcc gmon.out > output
> 
> I also tried this one
> gprof -a /root/install/lib/gcc/TARGET/VERSION/cc1 gmon.out > output
> 
>  but i am getting the same profiles for any program i compile.i have been
>  struggling to get this done for a long time.can somebody please help
>  me.thanx in advance.

It isn't clear what your problem is.  What profiles are you getting? 
Why do you think they are wrong?

Gcc contains multiple programs.  If you compiled all of them with 
profile info, then the profile output files may be overwriting each 
other.  Use gcc -v to see what all the gcc driver does, and try running 
individual programs instead of running the gcc driver.
-- 
Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com

Re: i am getting same profile(for gcc) for all testcases

[Daniel Jacobowitz]

On Thu, Mar 04, 2004 at 01:10:04PM -0800, Jim Wilson wrote:
> perugupa@csee.wvu.edu wrote:
> >   $ make -j8 all CFLAGS="-g -profile -O2"
> 
> -profile isn't a gcc option.  This might be the problem.  Try -p or -pg. 
>  -pg will give more info.

Actually, for many targets, it is.  It's handled completely in specs;
it implies -pg for compilation and on some targets -pg -lc_p when
linking.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer

Re: i am getting same profile(for gcc) for all testcases

[Segher Boessenkool]

On 4-mrt-04, at 22:10, Jim Wilson wrote:
> Gcc contains multiple programs.  If you compiled all of them with 
> profile info, then the profile output files may be overwriting each 
> other.  Use gcc -v to see what all the gcc driver does, and try 
> running individual programs instead of running the gcc driver.

Or set the environment variable GMON_OUT_PREFIX, i.e.,

	export GMON_OUT_PREFIX=gmon


Segher

Re: i am getting same profile(for gcc) for all testcases

[perugupa]

segher....,thanx and i will try this and let you know if it works.and is
it ok if i compile everything with profiling on or shall i compile only
cc1.how will i know which part of source code comes under 'C proper'.
Jim...,i sent a sample profile in last mail i will send it again later
today as i done have it with me at home right now.but its same every time
and i am using the regression test suite given with gcc release 3.2.3 (on
gcc3.2.3).
thanx for ur help guys..

regards,
nath


>
> On 4-mrt-04, at 22:10, Jim Wilson wrote:
>> Gcc contains multiple programs.  If you compiled all of them with
>> profile info, then the profile output files may be overwriting each
>> other.  Use gcc -v to see what all the gcc driver does, and try
>> running individual programs instead of running the gcc driver.
>
> Or set the environment variable GMON_OUT_PREFIX, i.e.,
>
> 	export GMON_OUT_PREFIX=gmon
>
>
> Segher