How to find caller address in i386?

[samueldotj]

Hi,

Inside a kernel function I want to find which function called that function at run time.
For example: If function x() calls y(), I want to get x's address inside y.

Is there any way without back tracing the stack?

Thanks
Sam

[xyzzy]

If you're using GCC, you can use the builtin function __builtin_return_address() to get the address of the instruction after the call in x()

[samueldotj]

Thanks