Le 04/05/2022 à 19:06, Steven Rostedt a écrit : > On Wed, 4 May 2022 16:50:58 +0000 > Christophe Leroy <christophe.le...@csgroup.eu> wrote: > >> In vmlinux, relocations are resolved, trampolines are installed for >> unreachable destinations and you don't anymore have a section with all >> the relocations to mcount. It means 'recordmcount' or whatever tool we >> use will have to read the code to find all direct calls to mcount, then >> find all trampolines to mcount then find all calls to those trampolines. > > OK, so what you are saying is that in the object file, we can see the > site that calls mcount, but when it is linked, it may not call mcount, > but instead it will call a trampoline that will call mcount, thus the > tool will need to find these calls to the trampolines that call mcount > as well as the locations that call mcount directly. > > Did I get that right? >
Yes it is what I'm trying to say. Christophe
