On Tue, May 05, 2020 at 04:27:44PM -0400, Mathieu Desnoyers wrote: > Actually, if the goal is to do code patching of the call, I wonder > what makes it OK to "guess" all the call patterns generated by the compiler ?
We're not guessing, have have objtool read the compiler output and record the location for us. The compiler can generate whatever it likes.