| Message ID | 20171016171246.15712-3-dianders@chromium.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi, On Tue, Dec 19, 2017 at 5:18 PM, Dave Hansen <dave.hansen@intel.com> wrote: > I'm seeing some build breakage that I bisected to commit 4e56207130eda: > >> CC kernel/bounds.s >> In file included from /home/davehans/linux.git/include/asm-generic/bug.h:15:0, >> from /home/davehans/linux.git/arch/x86/include/asm/bug.h:81, >> from /home/davehans/linux.git/include/linux/bug.h:4, >> from /home/davehans/linux.git/include/linux/page-flags.h:9, >> from /home/davehans/linux.git/kernel/bounds.c:9: >> /home/davehans/linux.git/include/linux/kernel.h:5:20: fatal error: stdarg.h: No such file or directory >> #include <stdarg.h> >> ^ >> compilation terminated. > > It's odd because I'm pretty sure I've done 4.15-rc compiles on this > system before without issues. I suspect something in my config > (attached) is triggering this. > > Does this look familiar to anyone? > > gcc -v > Using built-in specs. > COLLECT_GCC=/usr/bin/gcc > COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/6.4.1/lto-wrapper > Target: x86_64-redhat-linux > Configured with: ../configure --enable-bootstrap > --enable-languages=c,c++,objc,obj-c++,fortran,ada,go,lto --prefix=/usr > --mandir=/usr/share/man --infodir=/usr/share/info > --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-shared > --enable-threads=posix --enable-checking=release --enable-multilib > --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions > --enable-gnu-unique-object --enable-linker-build-id > --with-linker-hash-style=gnu --enable-plugin --enable-initfini-array > --disable-libgcj --with-isl --enable-libmpx > --enable-gnu-indirect-function --with-tune=generic --with-arch_32=i686 > --build=x86_64-redhat-linux > Thread model: posix > gcc version 6.4.1 20170727 (Red Hat 6.4.1-1) (GCC) Yes, it appears to be related to upgrading your compiler without doing a "make clean". Discussion can be found at <https://lkml.org/lkml/2017/12/16/315>, or search for the subject [BUG] Build error for 4.15-rc3 kernel caused by patch "kbuild: Add a cache for generated variables" -Doug -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Makefile b/Makefile index a2d715d7a327..5c82cca84d29 100644 --- a/Makefile +++ b/Makefile @@ -638,7 +638,7 @@ KBUILD_CFLAGS += $(call cc-ifversion, -lt, 0409, \ KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0) # check for 'asm goto' -ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y) +ifeq ($(call shell-cached,$(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y) KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO KBUILD_AFLAGS += -DCC_HAVE_ASM_GOTO endif @@ -774,7 +774,7 @@ KBUILD_CFLAGS += $(call cc-option,-fdata-sections,) endif # arch Makefile may override CC so keep this after arch Makefile is included -NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) +NOSTDINC_FLAGS += -nostdinc -isystem $(call shell-cached,$(CC) -print-file-name=include) CHECKFLAGS += $(NOSTDINC_FLAGS) # warn about C99 declaration after statement
These are a few stragglers that I left out of the original patch to cache calls to the C compiler ("kbuild: Add a cache for generated variables") because they bleed out into the main Makefile and thus uglify things a little bit. The idea is the same here, though. Signed-off-by: Douglas Anderson <dianders@chromium.org> Tested-by: Ingo Molnar <mingo@kernel.org> Tested-by: Guenter Roeck <linux@roeck-us.net> --- Changes in v4: None Changes in v3: - Add Tested-by for Ingo and Guenter since v2 and v3 are very similar Changes in v2: - Abstract at a different level (like shell-cached) per Masahiro Yamada Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)