From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dan.rpsys.net (dan.rpsys.net [93.97.175.187]) by mail.openembedded.org (Postfix) with ESMTP id 962DA6A564 for ; Sun, 22 Sep 2013 10:54:48 +0000 (UTC) Received: from localhost (dan.rpsys.net [127.0.0.1]) by dan.rpsys.net (8.14.4/8.14.4/Debian-2.1ubuntu1) with ESMTP id r8MB9Pho005088; Sun, 22 Sep 2013 12:09:26 +0100 X-Virus-Scanned: Debian amavisd-new at dan.rpsys.net Received: from dan.rpsys.net ([127.0.0.1]) by localhost (dan.rpsys.net [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 9aAeuFXlw2l4; Sun, 22 Sep 2013 12:09:25 +0100 (BST) Received: from [192.168.3.10] (rpvlan0 [192.168.3.10]) (authenticated bits=0) by dan.rpsys.net (8.14.4/8.14.4/Debian-2.1ubuntu1) with ESMTP id r8MB9Msn005084 (version=TLSv1/SSLv3 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NOT); Sun, 22 Sep 2013 12:09:24 +0100 Message-ID: <1379847275.18603.207.camel@ted> From: Richard Purdie To: openembedded-core Date: Sun, 22 Sep 2013 11:54:35 +0100 X-Mailer: Evolution 3.6.4-0ubuntu1 Mime-Version: 1.0 Subject: [PATCH] gcc-target: Fix libatomic dependency tracking issues X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Patches and discussions about the oe-core layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 22 Sep 2013 10:54:49 -0000 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit The --enable-dependency-tracking option was added to workaround build issues in libatomic. This fixes that build problem properly and removes the flag since the dependency tracking code appears to be full of races which are much deeper and harder to fix. As per the automake manual, dependency tracking is only useful and worth the build performance cost if you are doing more than one compile of the same source code which in most cases we are not so this is a good thing anyway. Signed-off-by: Richard Purdie --- diff --git a/meta/recipes-devtools/gcc/gcc-4.8/0046-libatomic-deptracking.patch b/meta/recipes-devtools/gcc/gcc-4.8/0046-libatomic-deptracking.patch new file mode 100644 index 0000000..6ea4f42 --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc-4.8/0046-libatomic-deptracking.patch @@ -0,0 +1,41 @@ +gcc 4.8 won't build with --disable-dependency-tracking since the *.Ppo files +don't get created unless --enable-dependency-tracking is true. + +This patch ensures we only use those compiler options when its enabled. + +Upstream-Status: Submitted + +(Problem was already reported upstream, attached this patch there +http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55930) + +RP +2012/09/22 + +Index: gcc-4.8.1/libatomic/Makefile.am +=================================================================== +--- gcc-4.8.1.orig/libatomic/Makefile.am 2013-01-14 18:16:23.000000000 +0000 ++++ gcc-4.8.1/libatomic/Makefile.am 2013-09-22 10:38:18.904064750 +0000 +@@ -100,7 +100,8 @@ + IFUNC_DEF = -DIFUNC_ALT=$(PAT_S) + IFUNC_OPT = $(word $(PAT_S),$(IFUNC_OPTIONS)) + +-M_DEPS = -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo ++@AMDEP_TRUE@M_DEPS = -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo ++@AMDEP_FALSE@M_DEPS = + M_SIZE = -DN=$(PAT_N) + M_IFUNC = $(if $(PAT_S),$(IFUNC_DEF) $(IFUNC_OPT)) + M_FILE = $(PAT_BASE)_n.c +Index: gcc-4.8.1/libatomic/Makefile.in +=================================================================== +--- gcc-4.8.1.orig/libatomic/Makefile.in 2013-05-31 09:09:26.000000000 +0000 ++++ gcc-4.8.1/libatomic/Makefile.in 2013-09-22 10:40:42.520059917 +0000 +@@ -298,7 +298,8 @@ + PAT_S = $(word 3,$(PAT_SPLIT)) + IFUNC_DEF = -DIFUNC_ALT=$(PAT_S) + IFUNC_OPT = $(word $(PAT_S),$(IFUNC_OPTIONS)) +-M_DEPS = -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo ++@AMDEP_TRUE@M_DEPS = -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo ++@AMDEP_FALSE@M_DEPS = + M_SIZE = -DN=$(PAT_N) + M_IFUNC = $(if $(PAT_S),$(IFUNC_DEF) $(IFUNC_OPT)) + M_FILE = $(PAT_BASE)_n.c diff --git a/meta/recipes-devtools/gcc/gcc-target.inc b/meta/recipes-devtools/gcc/gcc-target.inc index c7e3e16..e1179ac 100644 --- a/meta/recipes-devtools/gcc/gcc-target.inc +++ b/meta/recipes-devtools/gcc/gcc-target.inc @@ -5,7 +5,7 @@ EXTRA_OECONF_PATHS = " \ --with-sysroot=/ \ --with-build-sysroot=${STAGING_DIR_TARGET} \ --with-native-system-header-dir=${STAGING_DIR_TARGET}${target_includedir} \ - --with-gxx-include-dir=${includedir}/c++/ --enable-dependency-tracking" + --with-gxx-include-dir=${includedir}/c++/" ARCH_FLAGS_FOR_TARGET += "-isystem${STAGING_INCDIR} -I${B}/gcc/include/ "