On Sat, Jan 9, 2021 at 4:36 PM Josh Poimboeuf <jpoimboe@xxxxxxxxxx> wrote: > > On Sat, Jan 09, 2021 at 03:54:20PM +0100, Sedat Dilek wrote: > > I am interested in having Clang LTO (Clang-CFI) for x86-64 working and > > help with testing. > > > > I tried the Git tree mentioned in [3] <jpoimboe.git#objtool-vmlinux> > > (together with changes from <peterz.git#x86/urgent>). > > > > I only see in my build-log... > > > > drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o: warning: objtool: > > eb_relocate_parse_slow()+0x3d0: stack state mismatch: cfa1=7+120 > > cfa2=-1+0 > > drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o: warning: objtool: > > eb_copy_relocations()+0x229: stack state mismatch: cfa1=7+120 > > cfa2=-1+0 > > > > ...which was reported and worked on in [1]. > > > > This is with Clang-IAS version 11.0.1. > > > > Unfortunately, the recent changes in <samitolvanen.github#clang-cfi> > > do not cleanly apply with Josh stuff. > > My intention/wish was to report this combination of patchsets "heals" > > a lot of objtool-warnings for vmlinux.o I observed with Clang-CFI. > > > > Is it possible to have a Git branch where Josh's objtool-vmlinux is > > working together with Clang-LTO? > > For testing purposes. > > I updated my branch with my most recent work from before the holidays, > can you try it now? It still doesn't fix any of the crypto warnings, > but I'll do that in a separate set after posting these next week. > Thanks, Josh. Did you push it (oh ah push it push it really really really good...) to your remote Git please :-). - Sedat - [1] https://www.youtube.com/watch?v=vCadcBR95oU
