On Tue, Mar 1, 2016 at 8:07 AM, Ingo Molnar <mingo@xxxxxxxxxx> wrote: > > * Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote: > >> Hi all, >> >> After merging the tip tree, today's linux-next build (x86_64 allmodconfig) >> failed like this: >> >> DESCEND objtool >> CC /home/sfr/next/x86_64_allmodconfig/tools/objtool/builtin-check.o >> CC /home/sfr/next/x86_64_allmodconfig/tools/objtool/special.o >> CC /home/sfr/next/x86_64_allmodconfig/tools/objtool/elf.o >> CC /home/sfr/next/x86_64_allmodconfig/tools/objtool/objtool.o >> MKDIR /home/sfr/next/x86_64_allmodconfig/tools/objtool/arch/x86/insn/ >> CC /home/sfr/next/x86_64_allmodconfig/tools/objtool/libstring.o >> elf.c:22:23: fatal error: sys/types.h: No such file or directory >> compilation terminated. >> CC /home/sfr/next/x86_64_allmodconfig/tools/objtool/exec-cmd.o >> CC /home/sfr/next/x86_64_allmodconfig/tools/objtool/help.o >> builtin-check.c:28:20: fatal error: string.h: No such file or directory >> compilation terminated. >> objtool.c:28:19: fatal error: stdio.h: No such file or directory >> compilation terminated. >> >> and further errors ... >> >> This build is done with a PowerPC hosted cross compiler with no glibc. > > Ugh, what a rare and weird way to build an x86 kernel, and you made linux-next > dependent on it? > >> I assume that some things here need to be built with HOSTCC? > > I suspect that's the culprit. Do you now mandate people to have PowerPC systems as > a requirement to merge to linux-next? How are people supposed to be able to test > that rare type of build method which does not matter to 99.99% of our kernel > testers and users? > >From my experience in using different $COMPILER you should always pass CC and HOSTCC in your make-line when building a Linux-kernel or playing with the Kconfig-system. When building my llvm-toolchain with make/autoconf I had also to pass CC and CXX to my configure-line otherwise you got misconfiguration. [ EXAMPLE: Linux Kconfig-system ] $ MAKE="make V=1" ; COMPILER="mycompiler" ; MAKE_OPTS="CC=$COMPILER HOSTCC=$COMPILER" $ yes "" | $MAKE $MAKE_OPTS oldconfig && $MAKE $MAKE_OPTS silentoldconfig < /dev/null - Sedat - -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
