On Thu, Jun 4, 2020 at 7:56 AM 'Marco Elver' via Clang Built Linux <clang-built-li...@googlegroups.com> wrote: > > For Clang, correctly pass -fno-stack-protector via a separate cc-option, > as -fno-conserve-stack does not exist with Clang. > > Signed-off-by: Marco Elver <el...@google.com> > --- > kernel/Makefile | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/kernel/Makefile b/kernel/Makefile > index ce8716a04d0e..82153c47d2a6 100644 > --- a/kernel/Makefile > +++ b/kernel/Makefile > @@ -35,7 +35,7 @@ KCOV_INSTRUMENT_stacktrace.o := n > KCOV_INSTRUMENT_kcov.o := n > KASAN_SANITIZE_kcov.o := n > KCSAN_SANITIZE_kcov.o := n > -CFLAGS_kcov.o := $(call cc-option, -fno-conserve-stack -fno-stack-protector) > +CFLAGS_kcov.o := $(call cc-option, -fno-conserve-stack) $(call cc-option, > -fno-stack-protector)
All supported compiler versions understand -fno-stack-protector. Please unwrap it from cc-option. That's one less compiler invocation at build time. > > # cond_syscall is currently not LTO compatible > CFLAGS_sys_ni.o = $(DISABLE_LTO) > -- -- Thanks, ~Nick Desaulniers
