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SubjectRe: [PATCH 09/11] perf python: Link with libtraceevent
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On Wed, 17 Oct 2012 14:19:45 -0300, Arnaldo Carvalho de Melo wrote:
> From: Arnaldo Carvalho de Melo <acme@redhat.com>
>
> The evsel methods to read tracepoint fields uses libtraceevent
> functions, becoming needed by the python binding as well.

I got a build error after adding 'extern unsigned int page_size' to
util/python.c - please see my previous reply.

namhyung@sejong:perf$ make
SUBDIR ../lib/traceevent/
LINK perf
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

The libtraceevent.a will be in
python_ext_build/tmp/../../../lib/traceevent/libtraceevent.a if make was
invoked without the O.

Makefile contains following:

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

Thanks,
Namhyung

>
> Cc: David Ahern <dsahern@gmail.com>
> Cc: Frederic Weisbecker <fweisbec@gmail.com>
> Cc: Jiri Olsa <jolsa@redhat.com>
> Cc: Mike Galbraith <efault@gmx.de>
> Cc: Namhyung Kim <namhyung@gmail.com>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Stephane Eranian <eranian@google.com>
> Link: http://lkml.kernel.org/n/tip-j3o4v7jyvp9ke9n230l96a1m@git.kernel.org
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> ---
> tools/perf/util/setup.py | 1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py
> index d0f9f29..09c3cea 100644
> --- a/tools/perf/util/setup.py
> +++ b/tools/perf/util/setup.py
> @@ -31,6 +31,7 @@ perf = Extension('perf',
> sources = ext_sources,
> include_dirs = ['util/include'],
> extra_compile_args = cflags,
> + extra_objects = [build_tmp + '/../../libtraceevent.a'],
> )
>
> setup(name='perf',


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