----- On May 6, 2020, at 9:55 AM, Peter Zijlstra pet...@infradead.org wrote:
> 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. So is the plan to adapt objtool if future compilers change the generated instruction patterns ? Thanks, Mathieu -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com