Modifying syscall.c

HSN · 09-21-2009, 10:48 PM

I need to modify syscall.c to do some tracing before a system call is handled. I have never modified a c library in linux. Can someone direct me to some resources or give me some info on how to do this?

smeezekitty · 09-22-2009, 02:31 AM

& how is this diferent from modifying any other code?

HSN · 09-24-2009, 06:23 PM

Well I think I need to rewrite this question.
What I need is to modify the system call wrapper function that is called by any function that needs a system call to be done.
First, I don't know where this file is kept? Is this one wrapper or there are more?
Second, is this going to be part of gcc or the Kernel? What should be recompiled?

Any ideas on these issues?

smeezekitty · 09-24-2009, 09:52 PM

if you talking about what i think you are talking about
i should be in glibc
but i maybe wrong