2018-07-08 17:09 GMT+09:00 Bernd Edlinger <bernd.edlinger@xxxxxxxxxx>: > On 07/08/18 08:31, Bernd Edlinger wrote: >> The next make after an oldconfig reads in the outdated >> include/config/auto.conf which can kill the make before >> it is able to call the syncconfig target. >> >> $ make defconfig >> *** Default configuration is based on 'x86_64_defconfig' >> $ make >> scripts/kconfig/conf --syncconfig Kconfig >> Makefile:936: *** "Cannot generate ORC metadata for CONFIG_UNWINDER_ORC=y, >> please install libelf-dev, libelf-devel or elfutils-libelf-devel". Stop. >> >> $ sed -i s/CONFIG_UNWINDER_ORC=y// .configs >> $ make oldconfig >> Choose kernel unwinder >>> 1. ORC unwinder (UNWINDER_ORC) (NEW) >> 2. Frame pointer unwinder (UNWINDER_FRAME_POINTER) >> choice[1-2?]: 2 >> $ make >> Makefile:936: *** "Cannot generate ORC metadata for CONFIG_UNWINDER_ORC=y, >> please install libelf-dev, libelf-devel or elfutils-libelf-devel". Stop. >> >> With this patch oldconfig and similar targets like >> menuconfig call syncconfig to avoid this failure. >> >> Signed-off-by: Bernd Edlinger <bernd.edlinger@xxxxxxxxxx> >> --- >> scripts/kconfig/Makefile | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile >> index a3ac2c9..ef34275 100644 >> --- a/scripts/kconfig/Makefile >> +++ b/scripts/kconfig/Makefile >> @@ -62,6 +62,7 @@ PHONY += $(simple-targets) >> >> $(simple-targets): $(obj)/conf >> $< $(silent) --$@ $(Kconfig) >> + $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig > > On second thought, removing the auto.conf might be sufficient: > $(Q)rm -f include/config/auto.conf include/config/auto.conf.cmd > > Would you prefer that? No. My suggestion is this: https://patchwork.kernel.org/patch/10513065/ -- Best Regards Masahiro Yamada -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
