From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752425AbcFZKze (ORCPT ); Sun, 26 Jun 2016 06:55:34 -0400 Received: from terminus.zytor.com ([198.137.202.10]:51102 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752099AbcFZKzc (ORCPT ); Sun, 26 Jun 2016 06:55:32 -0400 Date: Sun, 26 Jun 2016 03:54:50 -0700 From: tip-bot for He Kuang Message-ID: Cc: alexander.shishkin@linux.intel.com, jpoimboe@redhat.com, adrian.hunter@intel.com, peterz@infradead.org, acme@redhat.com, tumanova@linux.vnet.ibm.com, mhiramat@kernel.org, dsahern@gmail.com, namhyung@kernel.org, mingo@kernel.org, kan.liang@intel.com, penberg@kernel.org, eranian@google.com, jolsa@redhat.com, hekuang@huawei.com, hpa@zytor.com, tglx@linutronix.de, linux-kernel@vger.kernel.org, ak@linux.intel.com, wangnan0@huawei.com, sukadev@linux.vnet.ibm.com Reply-To: hekuang@huawei.com, penberg@kernel.org, jolsa@redhat.com, eranian@google.com, tglx@linutronix.de, hpa@zytor.com, linux-kernel@vger.kernel.org, sukadev@linux.vnet.ibm.com, wangnan0@huawei.com, ak@linux.intel.com, jpoimboe@redhat.com, alexander.shishkin@linux.intel.com, mhiramat@kernel.org, tumanova@linux.vnet.ibm.com, adrian.hunter@intel.com, acme@redhat.com, peterz@infradead.org, namhyung@kernel.org, dsahern@gmail.com, kan.liang@intel.com, mingo@kernel.org In-Reply-To: <1466578626-92406-5-git-send-email-hekuang@huawei.com> References: <1466578626-92406-5-git-send-email-hekuang@huawei.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf tools: Let python use correct gcc for build_ext Git-Commit-ID: 48d8d5db4ac454e590ef7d440f456743d6cbaa94 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 48d8d5db4ac454e590ef7d440f456743d6cbaa94 Gitweb: http://git.kernel.org/tip/48d8d5db4ac454e590ef7d440f456743d6cbaa94 Author: He Kuang AuthorDate: Wed, 22 Jun 2016 06:57:05 +0000 Committer: Arnaldo Carvalho de Melo CommitDate: Wed, 22 Jun 2016 16:11:42 -0300 perf tools: Let python use correct gcc for build_ext Currently, python uses host gcc instead of cross-compile gcc in the last step of compiling build_ext(remove '--quiet' to show verbose): cross-gcc ... cross-gcc ... creating ~/out/python_ext_build/lib gcc -pthread -shared -Wl,-z ... This is wrong but may not cause any errors unless the features detected by cross-compiler do not match those for host compiler, and causes the following errors: /usr/lib64/gcc/bin/ld: cannot find -lunwind-x86 collect2: error: ld returned 1 exit status error: command 'gcc' failed with exit status 1 cp: cannot stat ‘~/out/python_ext_build/lib/perf.so’: No such file or directory Makefile.perf:257: recipe for target '~/out/python/perf.so' failed make[1]: *** [~/out/python/perf.so] Error 1 Makefile:68: recipe for target 'all' failed make: *** [all] Error 2 This issue is also reported and anwsered on stackoverflow. Link: http://stackoverflow.com/questions/5986256/python-distutils-gcc-path Signed-off-by: He Kuang Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Andi Kleen Cc: David Ahern Cc: Ekaterina Tumanova Cc: Jiri Olsa Cc: Josh Poimboeuf Cc: Kan Liang Cc: Masami Hiramatsu Cc: Namhyung Kim Cc: Pekka Enberg Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Sukadev Bhattiprolu Cc: Wang Nan Link: http://lkml.kernel.org/r/1466578626-92406-5-git-send-email-hekuang@huawei.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Makefile.perf | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index bde8cba..d0a2cb1 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -254,7 +254,8 @@ PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources) PYTHON_EXT_DEPS := util/python-ext-sources util/setup.py $(LIBTRACEEVENT) $(LIBAPI) $(OUTPUT)python/perf.so: $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS) $(LIBTRACEEVENT_DYNAMIC_LIST) - $(QUIET_GEN)CFLAGS='$(CFLAGS)' LDFLAGS='$(LDFLAGS) $(LIBTRACEEVENT_DYNAMIC_LIST_LDFLAGS)' \ + $(QUIET_GEN)LDSHARED="$(CC) -pthread -shared" \ + CFLAGS='$(CFLAGS)' LDFLAGS='$(LDFLAGS) $(LIBTRACEEVENT_DYNAMIC_LIST_LDFLAGS)' \ $(PYTHON_WORD) util/setup.py \ --quiet build_ext; \ mkdir -p $(OUTPUT)python && \