[Valgrind-developers] use of lackey tool

[khaled h. <kha...@gm...>]

Hi
I want to use the lackey tool withe the --trace-mem=yes
and I want to profile a section in my program  not all the program
some things like
CALLGRIND_START_INSTRUMENTATION.
and
CALLGRIND_STOP_INSTRUMENTATION. with the Callgrind tool

I try to use this options but they didn' work

So, please how can I do that

Thank you