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perf tests x86: Add dwarf unwind test

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Adding dwarf unwind test, that setups live machine data over the perf
test thread and does the remote unwind.

At this moment this test fails due to bug in the max_stack processing in
unwind__get_entries function.  This is fixed in following patch.

Need to use -fno-optimize-sibling-calls for test compilation, otherwise
'krava_*' function calls are optimized into jumps and ommited from the
stack unwind.

So far it's enabled only for x86.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Jean Pihet <jean.pihet@linaro.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1389098853-14466-6-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2014-01-07 13:47:22 +01:00 • committed by Arnaldo Carvalho de Melo
parent 3c8b06f981
commit aa16b81fe9
7 changed files with 232 additions and 0 deletions
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9
tools/perf/tests/tests.h
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@ -40,5 +40,14 @@ int test__code_reading(void);
int test__sample_parsing(void);
int test__keep_tracking(void);
int test__parse_no_sample_id_all(void);
int test__dwarf_unwind(void);
#if defined(__x86_64__) || defined(__i386__)
#ifdef HAVE_LIBUNWIND_SUPPORT
struct thread;
struct perf_sample;
int test__arch_unwind_sample(struct perf_sample *sample,
struct thread *thread);
#endif
#endif
#endif /* TESTS_H */