Hi Dmitry, [auto build test ERROR on v4.5-rc1] [also build test ERROR on next-20160125] [cannot apply to tip/x86/core kbuild/for-next] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system]
url: https://github.com/0day-ci/linux/commits/Dmitry-Vyukov/kernel-add-kcov-code-coverage/20160125-210230 config: x86_64-allyesconfig (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): >> Makefile:679: Cannot use CONFIG_KCOV: -fsanitize-coverage=trace-pc is not >> supported by compiler >> gcc-5: error: unrecognized command line option '-fsanitize-coverage=trace-pc' make[2]: *** [arch/x86/purgatory/purgatory.o] Error 1 >> gcc-5: error: unrecognized command line option '-fsanitize-coverage=trace-pc' make[2]: *** [arch/x86/purgatory/sha256.o] Error 1 >> gcc-5: error: unrecognized command line option '-fsanitize-coverage=trace-pc' make[2]: *** [arch/x86/purgatory/string.o] Error 1 make[2]: Target 'arch/x86/purgatory/kexec-purgatory.c' not remade because of errors. make[1]: *** [archprepare] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [sub-make] Error 2 vim +679 Makefile 673 endif 674 endif 675 KBUILD_CFLAGS += $(stackp-flag) 676 677 ifdef CONFIG_KCOV 678 ifeq ($(call cc-option, $(CFLAGS_KCOV)),) > 679 $(warning Cannot use CONFIG_KCOV: \ 680 -fsanitize-coverage=trace-pc is not supported by compiler) 681 endif 682 endif --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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