On Fri, Mar 02, 2018 at 03:17:35PM +0300, Antony Pavlov wrote: > On Thu, 1 Mar 2018 12:07:29 +0100 > Sascha Hauer <s.ha...@pengutronix.de> wrote: > > > Hi Sam and Antony, > > > > (Antony because you introduced this and Sam because you have intimate > > knowledge with our build system ;) > > > > I am trying to solve a problem that annoys me for some years now. The > > problem is that the MIPS defconfigs regularly fail in my autobuilder. > > I usually help myself with trying it again and most of the time it > > then works, but doing this for years increases the pressure to do > > something. > > > > What happens is that the MIPS builds use include/generated/compile.h: > > > > > arch/mips/include/asm/pbl_macros.h:28:#include <generated/compile.h> > > > > This often ends in: > > > > > In file included from arch/mips/boot/start.S:20:0: > > > arch/mips/include/asm/pbl_macros.h:28:31: > > > fatal error: generated/compile.h: No such file or directory > > > compilation terminated. > > > > include/generated/compile.h is generated in common/Makefile: > > > > > include/generated/compile.h: FORCE > > > @$($(quiet)chk_compile.h) > > > $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \ > > > "$(UTS_MACHINE)" "$(CC) $(KBUILD_CFLAGS)" > > > > Other users of this file add an explicit dependency on it: > > > > > # dependencies on generated files need to be listed explicitly > > > $(obj)/version.o: include/generated/compile.h > > > > This only seems to work though when the dependent file is in the same > > directory, but not when the file is in arch/mips/boot/. > > > > I tried doing the include/generated/compile.h in Makefile instead of > > common/Makefile, but then the version counting gets confused and causes > > unnecessary rebuilds. > > > > Any ideas how to solve this? > > I can't reproduce parallel build breakage.
The failure starts here when using 6 threads or more and only when compiling the black-swift_defconfig. After one successful build I can reproduce this reliably here with: rm -f include/generated/compile.h && make -j 6 > But I see another problem: > the version string inside mips pbl binary is differ from the version string > inside main barebox binary. > > I suppose that the problem is that current build system handles mips asm files > (which are actually use generated compile.h) and c-files in a different way. Ups. How do the strings differ? Another obvious way to fix the issue is to remove UTS_RELEASE and UTS_VERSION from the pbl headers. Would that be an option? Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list firstname.lastname@example.org http://lists.infradead.org/mailman/listinfo/barebox