How to access stack base pointer (rbp) using inline assembly?

Question

My requirement is to access a function call parameters by offsetting rbp using inline assembly. But I couldn't find a suitable operand constraint to specify the base pointer in x86. I am using Intel compiler but it's documentation states that it supports GCC style inline assembly. So GCC based example would be sufficient.

Answer 1

I know you asked for inlined assembly, but note that on gcc you could also use __builtin_frame_address, which both frees you from the need for inlined assembly (yikes), and could provide frame levels further than the immediate one.

See here - http://gcc.gnu.org/onlinedocs/gcc/Return-Address.html