2012-10-20 01:10:35

by Arnaldo Carvalho de Melo

[permalink] [raw]
Subject: [tip:perf/urgent] perf python: Properly link with libtraceevent

Commit-ID: 45bff41a9a6f22af28e4ba22f83c87f619e573a8
Gitweb: http://git.kernel.org/tip/45bff41a9a6f22af28e4ba22f83c87f619e573a8
Author: Arnaldo Carvalho de Melo <[email protected]>
AuthorDate: Thu, 18 Oct 2012 11:38:35 -0300
Committer: Ingo Molnar <[email protected]>
CommitDate: Sat, 20 Oct 2012 02:43:08 +0200

perf python: Properly link with libtraceevent

Namhyung Kim reported that the build fails with:

GEN python/perf.so
gcc: error: python_ext_build/tmp//../../libtraceevent.a: No such file or directory
error: command 'gcc' failed with exit status 1
cp: cannot stat `python_ext_build/lib/perf.so': No such file or directory
make: *** [python/perf.so] Error 1

We need to propagate the TE_PATH variable to the setup.py file.

Reported-by: Namhyung Kim <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Fixed superfluous variable build error. ]
Signed-off-by: Ingo Molnar <[email protected]>
---
tools/perf/Makefile | 24 +++++++++++++-----------
tools/perf/util/python.c | 2 --
tools/perf/util/setup.py | 3 ++-
3 files changed, 15 insertions(+), 14 deletions(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index f7c968a..00deed4d 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -184,9 +184,22 @@ SCRIPT_SH += perf-archive.sh
grep-libs = $(filter -l%,$(1))
strip-libs = $(filter-out -l%,$(1))

+TRACE_EVENT_DIR = ../lib/traceevent/
+
+ifneq ($(OUTPUT),)
+ TE_PATH=$(OUTPUT)
+else
+ TE_PATH=$(TRACE_EVENT_DIR)
+endif
+
+LIBTRACEEVENT = $(TE_PATH)libtraceevent.a
+TE_LIB := -L$(TE_PATH) -ltraceevent
+
PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
PYTHON_EXT_DEPS := util/python-ext-sources util/setup.py

+export LIBTRACEEVENT
+
$(OUTPUT)python/perf.so: $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS)
$(QUIET_GEN)CFLAGS='$(BASIC_CFLAGS)' $(PYTHON_WORD) util/setup.py \
--quiet build_ext; \
@@ -198,17 +211,6 @@ $(OUTPUT)python/perf.so: $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS)

SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH))

-TRACE_EVENT_DIR = ../lib/traceevent/
-
-ifneq ($(OUTPUT),)
- TE_PATH=$(OUTPUT)
-else
- TE_PATH=$(TRACE_EVENT_DIR)
-endif
-
-LIBTRACEEVENT = $(TE_PATH)libtraceevent.a
-TE_LIB := -L$(TE_PATH) -ltraceevent
-
#
# Single 'perf' binary right now:
#
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index a2657fd..9181bf2 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -1015,8 +1015,6 @@ PyMODINIT_FUNC initperf(void)
pyrf_cpu_map__setup_types() < 0)
return;

- page_size = sysconf(_SC_PAGE_SIZE);
-
Py_INCREF(&pyrf_evlist__type);
PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);

diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py
index 09c3cea..73d5102 100644
--- a/tools/perf/util/setup.py
+++ b/tools/perf/util/setup.py
@@ -23,6 +23,7 @@ cflags += getenv('CFLAGS', '').split()

build_lib = getenv('PYTHON_EXTBUILD_LIB')
build_tmp = getenv('PYTHON_EXTBUILD_TMP')
+libtraceevent = getenv('LIBTRACEEVENT')

ext_sources = [f.strip() for f in file('util/python-ext-sources')
if len(f.strip()) > 0 and f[0] != '#']
@@ -31,7 +32,7 @@ perf = Extension('perf',
sources = ext_sources,
include_dirs = ['util/include'],
extra_compile_args = cflags,
- extra_objects = [build_tmp + '/../../libtraceevent.a'],
+ extra_objects = [libtraceevent],
)

setup(name='perf',