On Sat, May 28, 2022 at 12:50 AM Josh Poimboeuf <jpoimboe@xxxxxxxxxx> wrote: > > On Fri, May 27, 2022 at 07:01:55PM +0900, Masahiro Yamada wrote: > > When CONFIG_LTO_CLANG or CONFIG_X86_KERNEL_IBT is enabled, objtool for > > multi-object modules is postponed until the objects are linked together. > > > > Make sure to re-run objtool and re-link multi-object modules when > > objtool is updated. > > > > Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx> > > Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> > > Acked-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx> > > Tested-by: Nathan Chancellor <nathan@xxxxxxxxxx> > > Reviewed-by: Nicolas Schier <n.schier@xxxxxx> > > Tested-by: Sedat Dilek <sedat.dilek@xxxxxxxxx> # LLVM-14 (x86-64) > > Hi Masahiro, > > Is it also possible to rebuild vmlinux.o when objtool changes, for > CONFIG_LTO_CLANG, CONFIG_X86_KERNEL_IBT, or CONFIG_NOINSTR_VALIDATION? > That doesn't seem to be happening. > > -- > Josh Yes. Actually, it is already on my TODO list, but it requires more effort. I will aim for v5.20. -- Best Regards Masahiro Yamada
