2015-06-12 03:17:26

by Wang Nan

[permalink] [raw]
Subject: [PATCH tip/perf/core] tools lib traceevent: Fix python/perf.so compiling error

'make build-test' finds an error that make_python_perf_so fails due to
missing of libtraceevent-dynamic-list:

'.../python2' util/setup.py \
--quiet build_ext; \
mkdir -p python && \
cp python_ext_build/lib/perf.so python/
/path/to/ld: cannot open linker script file /path/to/kernel/tools/lib/traceevent/libtraceevent-dynamic-list: No such file or directory
collect2: error: ld returned 1 exit status
error: command 'x86_64-linux-gcc' failed with exit status 1
cp: cannot stat 'python_ext_build/lib/perf.so': No such file or directory
make[3]: *** [python/perf.so] Error 1
make[2]: *** [python/perf.so] Error 2
test: test -f ./python/perf.so
make[1]: *** [make_python_perf_so] Error 1
make: *** [build-test] Error 2
make: Leaving directory `/path/to/kernel/tools/perf'

This is caused by commit e3d09ec8126fe2c9a3ade661e2126e215ca27a80
("tools lib traceevent: Export dynamic symbols used by traceevent
plugins") that, it adds the list file to LDFLAGS but forgot to add it
to dependency list of python/perf.so.

This patch fixes this problem.

Signed-off-by: Wang Nan <[email protected]>
---
tools/perf/Makefile.perf | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 280c4c6..ec2ed6e 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -195,7 +195,7 @@ python-clean := $(call QUIET_CLEAN, python) $(RM) -r $(PYTHON_EXTBUILD) $(OUTPUT
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) $(PYTHON_EXT_DEPS)
+$(OUTPUT)python/perf.so: $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS) $(LIBTRACEEVENT_DYNAMIC_LIST)
$(QUIET_GEN)CFLAGS='$(CFLAGS)' $(PYTHON_WORD) util/setup.py \
--quiet build_ext; \
mkdir -p $(OUTPUT)python && \
--
1.8.3.4


2015-06-12 21:36:13

by Jiri Olsa

[permalink] [raw]
Subject: Re: [PATCH tip/perf/core] tools lib traceevent: Fix python/perf.so compiling error

On Fri, Jun 12, 2015 at 03:17:11AM +0000, Wang Nan wrote:
> 'make build-test' finds an error that make_python_perf_so fails due to
> missing of libtraceevent-dynamic-list:
>
> '.../python2' util/setup.py \
> --quiet build_ext; \
> mkdir -p python && \
> cp python_ext_build/lib/perf.so python/
> /path/to/ld: cannot open linker script file /path/to/kernel/tools/lib/traceevent/libtraceevent-dynamic-list: No such file or directory
> collect2: error: ld returned 1 exit status
> error: command 'x86_64-linux-gcc' failed with exit status 1
> cp: cannot stat 'python_ext_build/lib/perf.so': No such file or directory
> make[3]: *** [python/perf.so] Error 1
> make[2]: *** [python/perf.so] Error 2
> test: test -f ./python/perf.so
> make[1]: *** [make_python_perf_so] Error 1
> make: *** [build-test] Error 2
> make: Leaving directory `/path/to/kernel/tools/perf'
>
> This is caused by commit e3d09ec8126fe2c9a3ade661e2126e215ca27a80
> ("tools lib traceevent: Export dynamic symbols used by traceevent
> plugins") that, it adds the list file to LDFLAGS but forgot to add it
> to dependency list of python/perf.so.
>
> This patch fixes this problem.
>
> Signed-off-by: Wang Nan <[email protected]>

Acked-by: Jiri Olsa <[email protected]>

thanks,
jirka

Subject: [tip:perf/core] tools lib traceevent: Fix python/ perf.so compiling error

Commit-ID: a35489a6a217f0396c979009b0c875d871434737
Gitweb: http://git.kernel.org/tip/a35489a6a217f0396c979009b0c875d871434737
Author: Wang Nan <[email protected]>
AuthorDate: Fri, 12 Jun 2015 03:17:11 +0000
Committer: Arnaldo Carvalho de Melo <[email protected]>
CommitDate: Tue, 16 Jun 2015 10:34:38 -0300

tools lib traceevent: Fix python/perf.so compiling error

'make build-test' finds an error that make_python_perf_so fails due to
missing of libtraceevent-dynamic-list:

'.../python2' util/setup.py \
--quiet build_ext; \
mkdir -p python && \
cp python_ext_build/lib/perf.so python/
/path/to/ld: cannot open linker script file /path/to/kernel/tools/lib/traceevent/libtraceevent-dynamic-list: No such file or directory
collect2: error: ld returned 1 exit status
error: command 'x86_64-linux-gcc' failed with exit status 1
cp: cannot stat 'python_ext_build/lib/perf.so': No such file or directory
make[3]: *** [python/perf.so] Error 1
make[2]: *** [python/perf.so] Error 2
test: test -f ./python/perf.so
make[1]: *** [make_python_perf_so] Error 1
make: *** [build-test] Error 2
make: Leaving directory `/path/to/kernel/tools/perf'

This is caused by commit e3d09ec8126fe2c9a3ade661e2126e215ca27a80
("tools lib traceevent: Export dynamic symbols used by traceevent
plugins") that, it adds the list file to LDFLAGS but forgot to add it to
dependency list of python/perf.so.

This patch fixes this problem.

Signed-off-by: Wang Nan <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: He Kuang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Zefan Li <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
tools/perf/Makefile.perf | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index b1dfcd8..3743783 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -190,7 +190,7 @@ python-clean := $(call QUIET_CLEAN, python) $(RM) -r $(PYTHON_EXTBUILD) $(OUTPUT
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) $(PYTHON_EXT_DEPS)
+$(OUTPUT)python/perf.so: $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS) $(LIBTRACEEVENT_DYNAMIC_LIST)
$(QUIET_GEN)CFLAGS='$(CFLAGS)' $(PYTHON_WORD) util/setup.py \
--quiet build_ext; \
mkdir -p $(OUTPUT)python && \