2017-04-14 15:17 GMT+09:00 Masahiro Yamada <[email protected]>: > Arnd Bergmann reported: > "When ftrace is enabled and we build with gcc-4.7 or older, we > get a warning for each file on architectures that select > CONFIG_LD_DEAD_CODE_DATA_ELIMINATION: > > warning: -ffunction-sections disabled; it makes profiling impossible > [enabled by default] > " > > Since commit c3f0d0bc5b01 ("kbuild, LLVMLinux: Add -Werror to > cc-option to support clang"), warnings are treated as errors in > cc-option checks. CC_FLAGS_FTRACE is blindly added to KBUILD_CFLAGS, > so $(call cc-option,-ffunction-sections,) should be moved below it > in order to detect the conflict between the two options. > > Reported-by: Arnd Bergmann <[email protected]> > Signed-off-by: Masahiro Yamada <[email protected]>
Applied to linux-kbuild/kbuild. -- Best Regards Masahiro Yamada
