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perf test: Check for linking problems in the python binding

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It just will add the O= builddir to PYTHONPATH and try to 'use perf',
which will, in verbose mode show the python backtrace with the missing
symbols, such as in the problem fixed in the patch after this one:

  # perf test -v 15
  15: Try 'use perf' in python, checking link problems       :
  --- start ---
  Traceback (most recent call last):
    File "<stdin>", line 1, in <module>
  ImportError: /home/acme/git/build/perf//python/perf.so: undefined symbol: test_attr__enabled
  ---- end ----
  Try 'use perf' in python, checking link problems: FAILED!
  #

Loooong overdue, done.

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-zmd2oq9gz6t1u145ub7qm2nv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2012-12-14 13:06:13 -03:00
parent 56e52e8536
commit 54359d3340
4 changed files with 32 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
tools/perf/Makefile
View File

@ -488,6 +488,7 @@ LIB_OBJS += $(OUTPUT)tests/evsel-roundtrip-name.o
LIB_OBJS += $(OUTPUT)tests/evsel-tp-sched.o
LIB_OBJS += $(OUTPUT)tests/pmu.o
LIB_OBJS += $(OUTPUT)tests/hists_link.o
LIB_OBJS += $(OUTPUT)tests/python-use.o
BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o
BUILTIN_OBJS += $(OUTPUT)builtin-bench.o
@ -955,6 +956,9 @@ $(OUTPUT)tests/attr.o: tests/attr.c $(OUTPUT)PERF-CFLAGS
'-DBINDIR="$(bindir_SQ)"' \
$<
$(OUTPUT)tests/python-use.o: tests/python-use.c $(OUTPUT)PERF-CFLAGS
$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DPYTHONPATH='"$(OUTPUT)/python"' $<
$(OUTPUT)util/config.o: util/config.c $(OUTPUT)PERF-CFLAGS
$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<

4
tools/perf/tests/builtin-test.c
View File

@ -72,6 +72,10 @@ static struct test {
.desc = "Test matching and linking mutliple hists",
.func = test__hists_link,
},
{
.desc = "Try 'use perf' in python, checking link problems",
.func = test__python_use,
},
{
.func = NULL,
},

23
tools/perf/tests/python-use.c Normal file
View File

@ -0,0 +1,23 @@
/*
* Just test if we can load the python binding.
*/
#include <stdio.h>
#include <stdlib.h>
#include "tests.h"
extern int verbose;
int test__python_use(void)
{
char *cmd;
int ret;
if (asprintf(&cmd, "echo \"import sys ; sys.path.append('%s'); import perf\" | python %s",
PYTHONPATH, verbose ? "" : "2> /dev/null") < 0)
return -1;
ret = system(cmd) ? -1 : 0;
free(cmd);
return ret;
}

1
tools/perf/tests/tests.h
View File

@ -16,5 +16,6 @@ int test__attr(void);
int test__dso_data(void);
int test__parse_events(void);
int test__hists_link(void);
int test__python_use(void);
#endif /* TESTS_H */