On Tue, Feb 2, 2016 at 6:19 PM, Jiri Slaby <jsl...@suse.cz> wrote: > On 01/25/2016, 02:00 PM, Dmitry Vyukov wrote: >> --- a/scripts/Makefile.lib >> +++ b/scripts/Makefile.lib >> @@ -136,6 +136,12 @@ _c_flags += $(if $(patsubst n%,, \ >> $(CFLAGS_UBSAN)) >> endif >> >> +ifeq ($(CONFIG_KCOV),y) >> +_c_flags += $(if $(patsubst n%,, \ >> + $(KCOV_INSTRUMENT_$(basetarget).o)$(KCOV_INSTRUMENT)y), \ >> + $(CFLAGS_KCOV)) > > Now that KCOV does not inherit KASAN's "n"s, I see link errors in efi > lib with EFI_STUB: > drivers/firmware/efi/libstub/lib.a(efi-stub-helper.o): In function > `efi_printk': > efi-stub-helper.c:(.text+0x13): undefined reference to > `__sanitizer_cov_trace_pc' > efi-stub-helper.c:(.text+0x31): undefined reference to > `__sanitizer_cov_trace_pc' > ... > > I fixed it by adding "KCOV_INSTRUMENT := n" to > drivers/firmware/efi/libstub/Makefile
Done in v7 Thanks for testing!