Commit-ID: 48d8d5db4ac454e590ef7d440f456743d6cbaa94 Gitweb: http://git.kernel.org/tip/48d8d5db4ac454e590ef7d440f456743d6cbaa94 Author: He Kuang <hekuang@xxxxxxxxxx> AuthorDate: Wed, 22 Jun 2016 06:57:05 +0000 Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> 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 <hekuang@xxxxxxxxxx> Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx> Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx> Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx> Cc: David Ahern <dsahern@xxxxxxxxx> Cc: Ekaterina Tumanova <tumanova@xxxxxxxxxxxxxxxxxx> Cc: Jiri Olsa <jolsa@xxxxxxxxxx> Cc: Josh Poimboeuf <jpoimboe@xxxxxxxxxx> Cc: Kan Liang <kan.liang@xxxxxxxxx> Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx> Cc: Namhyung Kim <namhyung@xxxxxxxxxx> Cc: Pekka Enberg <penberg@xxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Stephane Eranian <eranian@xxxxxxxxxx> Cc: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxxxxxxx> Cc: Wang Nan <wangnan0@xxxxxxxxxx> Link: http://lkml.kernel.org/r/1466578626-92406-5-git-send-email-hekuang@xxxxxxxxxx Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> --- 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 && \ -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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