Can 'gprof' show profile info on lib routines such as 'malloc'?

[Terry]

When I use gprof to profile a program, it seems never show me the
profile info on c lib routines such as malloc. But sometimes, profile
info on such c lib routines are also important.
I use 'gcc -g -pg' to compile the c source. Should I use other options
in order for gprof to show 'malloc'?

Any more suggestions on program profiling?

Thanks!

 

[Antoninus Twink]

When I use gprof to profile a program, it seems never show me the
profile info on c lib routines such as malloc. But sometimes, profile
info on such c lib routines are also important.
I use 'gcc -g -pg' to compile the c source. Should I use other options
in order for gprof to show 'malloc'?

You need to have the standard library compiled for profiling if you want
to get profiling information from standard library functions!

For example, Debian has a libc6-prof package that installs a static
version of the C library compiled for profiling. It's called libc_p.a,
so you need to pass -lc_p to the linker.

 

[Flash Gordon]

Terry wrote, On 05/04/08 12:35:

When I use gprof to profile a program, it seems never show me the
profile info on c lib routines such as malloc. But sometimes, profile
info on such c lib routines are also important.
I use 'gcc -g -pg' to compile the c source. Should I use other options
in order for gprof to show 'malloc'?

Any more suggestions on program profiling?

You need to ask on the Linux groups rather than here since this is about
tools not the language. There are various other profilers available
though including oprofile.

 

[Kenny McCormack]

Terry wrote, On 05/04/08 12:35:

You need to ask on the Linux groups rather than here since this is about
tools not the language. There are various other profilers available
though including oprofile.

Same old, same old. Blah, blah, blah.