From patchwork Sun Jul 31 18:45:40 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Foley X-Patchwork-Id: 1024632 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter2.kernel.org (8.14.4/8.14.4) with ESMTP id p6VJmBS6032347 for ; Sun, 31 Jul 2011 19:48:13 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752071Ab1GaTsN (ORCPT ); Sun, 31 Jul 2011 15:48:13 -0400 Received: from vms173001pub.verizon.net ([206.46.173.1]:56841 "EHLO vms173001pub.verizon.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752063Ab1GaTsM (ORCPT ); Sun, 31 Jul 2011 15:48:12 -0400 X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter2.kernel.org [140.211.167.43]); Sun, 31 Jul 2011 19:48:13 +0000 (UTC) X-Greylist: delayed 3603 seconds by postgrey-1.27 at vger.kernel.org; Sun, 31 Jul 2011 15:48:12 EDT Received: from [192.168.1.14] ([unknown] [173.66.22.130]) by vms173001.mailsrvcs.net (Sun Java(tm) System Messaging Server 7u2-7.02 32bit (built Apr 16 2009)) with ESMTPA id <0LP70001MO7RNH60@vms173001.mailsrvcs.net>; Sun, 31 Jul 2011 13:47:57 -0500 (CDT) Date: Sun, 31 Jul 2011 14:45:40 -0400 (EDT) From: Peter Foley To: Arnaud Lacombe Cc: Peter Foley , Linux Kernel Mailing List , Linux Kbuild Mailing List , mmarek@suse.cz Subject: [PATCH v2] kbuild: prevent make from deleting _shipped files In-reply-to: Message-id: References: User-Agent: Alpine 2.00 (LNX 1167 2008-08-23) MIME-version: 1.0 Content-type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kbuild-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org commit 7373f4f (kbuild: add implicit rules for parser generation) created a implicit rule chain (%.c: %.c_shipped: %.y). Make considers the _shipped files to be intermediate files which causes them to be deleted if they didn't exist before make was run. Mark the _shipped files PRECIOUS to prevent make from deleting them. Signed-off-by: Peter Foley --- V2: update changelog to specify files are only deleted when they did not already exist -- 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/scripts/Makefile.lib b/scripts/Makefile.lib index aeea84a..5d986d9 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -167,6 +167,7 @@ ifdef REGENERATE_PARSERS quiet_cmd_gperf = GPERF $@ cmd_gperf = gperf -t --output-file $@ -a -C -E -g -k 1,3,$$ -p -t $< +.PRECIOUS: $(src)/%.hash.c_shipped $(src)/%.hash.c_shipped: $(src)/%.gperf $(call cmd,gperf) @@ -177,6 +178,7 @@ LEX_PREFIX = $(if $(LEX_PREFIX_${baseprereq}),$(LEX_PREFIX_${baseprereq}),yy) quiet_cmd_flex = LEX $@ cmd_flex = flex -o$@ -L -P $(LEX_PREFIX) $< +.PRECIOUS: $(src)/%.lex.c_shipped $(src)/%.lex.c_shipped: $(src)/%.l $(call cmd,flex) @@ -187,12 +189,14 @@ YACC_PREFIX = $(if $(YACC_PREFIX_${baseprereq}),$(YACC_PREFIX_${baseprereq}),yy) quiet_cmd_bison = YACC $@ cmd_bison = bison -o$@ -t -l -p $(YACC_PREFIX) $< +.PRECIOUS: $(src)/%.tab.c_shipped $(src)/%.tab.c_shipped: $(src)/%.y $(call cmd,bison) quiet_cmd_bison_h = YACC $@ cmd_bison_h = bison -o/dev/null --defines=$@ -t -l -p $(YACC_PREFIX) $< +.PRECIOUS: $(src)/%.tab.h_shipped $(src)/%.tab.h_shipped: $(src)/%.y $(call cmd,bison_h)