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Groups > linux.kernel > #1428471
| From | He Kuang <hekuang@huawei.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 4/5] perf tools: Let python use correct gcc for build_ext |
| Date | 2016-06-22 09:00 +0200 |
| Message-ID | <rMKiJ-8pY-9@gated-at.bofh.it> (permalink) |
| References | <rMKiJ-8pY-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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 <hekuang@huawei.com> --- 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 && \ -- 1.8.5.2
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[PATCH 0/5] Fixes on perf unwind He Kuang <hekuang@huawei.com> - 2016-06-22 09:00 +0200 [PATCH 2/5] perf unwind: Fix wrongly used regs for x86_32 unwind He Kuang <hekuang@huawei.com> - 2016-06-22 09:00 +0200 [PATCH 4/5] perf tools: Let python use correct gcc for build_ext He Kuang <hekuang@huawei.com> - 2016-06-22 09:00 +0200 [PATCH 1/5] perf unwind: Change macro names of perf register He Kuang <hekuang@huawei.com> - 2016-06-22 09:00 +0200 [PATCH 3/5] perf unwind: Fix wrongly used regs for aarch64 unwind He Kuang <hekuang@huawei.com> - 2016-06-22 09:00 +0200 Re: [PATCH 0/5] Fixes on perf unwind Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-06-23 15:40 +0200
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