* Is there a easy way to use the -finstrument-functions option?
@ 2011-10-25 7:15 renjunqu
2011-10-25 13:44 ` Ian Lance Taylor
0 siblings, 1 reply; 2+ messages in thread
From: renjunqu @ 2011-10-25 7:15 UTC (permalink / raw)
To: gcc-help
Hello everyone:
I want use gcc's "-finstrument-functions" option to hack a
open-source project. But if i want to make the most use of this option, i
should tell the compiler the my own definition of "__cyg_profile_func_enter"
and "__cyg_profile_func_exit" functions. If the project i want to hack will
create many different 'elf' files,and different 'elf' use different source
files,so i have to define the two function in many many files.
Is there some easy ways to tell the compiler my function's
definition???
Ren jun qu
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Is there a easy way to use the -finstrument-functions option?
2011-10-25 7:15 Is there a easy way to use the -finstrument-functions option? renjunqu
@ 2011-10-25 13:44 ` Ian Lance Taylor
0 siblings, 0 replies; 2+ messages in thread
From: Ian Lance Taylor @ 2011-10-25 13:44 UTC (permalink / raw)
To: renjunqu; +Cc: gcc-help
renjunqu <renjunqu@gmail.com> writes:
> I want use gcc's "-finstrument-functions" option to hack a
> open-source project. But if i want to make the most use of this option, i
> should tell the compiler the my own definition of "__cyg_profile_func_enter"
> and "__cyg_profile_func_exit" functions. If the project i want to hack will
> create many different 'elf' files,and different 'elf' use different source
> files,so i have to define the two function in many many files.
> Is there some easy ways to tell the compiler my function's
> definition???
I don't understand why you have to define the functions in many files.
Why can't you just define them once as globally visible functions?
Ian
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