profile system API performance

[Nick Clifton]

Hi George

> Nike, 

It's "Nick" actually...

> I find rebuild libc is so complicated, needs to refer to some Kernel header files.

Oh yes, this is not for the faint-hearted.

> Do you have any documents to refer for dummy -- like me? :-)

Have you checked out the glibc web site ?

   http://www.gnu.org/software/libc

> BTW: are there any libc which is already enabled with gprof functions (with -pg profile capability) to steal?

That depends upon the Linux distribution that you are using.  I would 
suggest that you check with their web sites.  You could also google for 
"glibc-profile".

Cheers
   Nick