search for: xrayinstru

> On 5 Sep 2016, at 16:14, SHUCAI YAO <yaos4 at mcmaster.ca> wrote: > > > Hi Dean, > > Do you have any example for this? I would like have a look at how you handle this in XRay if it is possible. > Yes, this is all upstream -- if you look in lib/CodeGen/XRayInstrument.cpp and the associated lowering code for X86 in lib/Target/X86/X86MCInstLower.cpp and/or search for PATCHABLE_RET in include/... and lib/... then that should give you a better idea of how this works. :) Cheers -- Dean

> On 5 Sep 2016, at 11:49, SHUCAI YAO <yaos4 at mcmaster.ca> wrote: > > For the function call lowering, do you mean lowercall function? I did insert the instruction before the stack adjustments, but the inserted code appears in the prologue of the function, other than before the function call. Maybe I did something wrong with the iterator. > > So you mean I should insert a