From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1erM3r-0004qB-69 for barebox@lists.infradead.org; Thu, 01 Mar 2018 11:07:46 +0000 Date: Thu, 1 Mar 2018 12:07:29 +0100 From: Sascha Hauer Message-ID: <20180301110729.pvdxqjqul7klrjyr@pengutronix.de> MIME-Version: 1.0 Content-Disposition: inline List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: MIPS parallel build breakage To: Barebox List Cc: Sam Ravnborg 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 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? 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 barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox