"Vineet Joglekar" <vintya@xxxxxxxxxx> writes: > For my project, I need to trace the read() function call till the > VFS level. I know that read() makes the kernel invoke sys_read() and > I want to do the same thing with some additional > functionalities. Can i get the implementation of the read() function > in gcc source code (maybe in the source file like unistd.c) so that > on the parallel lines I will be able to write my own my_read() > function which in turn will call the sys_read() too? read() is a library routine which is not provided by gcc. On GNU/Linux systems, it is provided by glibc. See http://sources.redhat.com/glibc/ Ian