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author | Wang Nan <wangnan0@huawei.com> | 2016-01-25 09:55:55 (GMT) |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-01-29 20:28:46 (GMT) |
commit | 8fd34e1cce180eb0c726e7ed88f7b70c11c38e21 (patch) | |
tree | 9e43d048b56dc3e8fe7a193a77cc4a22f03bcba9 /tools/perf/util/util.h | |
parent | 6a7d550e8b2eeb380ab85d9bc53571123b98345b (diff) | |
download | linux-8fd34e1cce180eb0c726e7ed88f7b70c11c38e21.tar.xz |
perf test: Improve bp_signal
Will Deacon [1] has some question on patch [2]. This patch improves
test__bp_signal so we can test:
1. A watchpoint and a breakpoint that fire on the same instruction
2. Nested signals
Test result:
On x86_64 and ARM64 (result are similar with patch [2] on ARM64):
# ./perf test -v signal
17: Test breakpoint overflow signal handler :
--- start ---
test child forked, pid 10213
count1 1, count2 3, count3 2, overflow 3, overflows_2 3
test child finished with 0
---- end ----
Test breakpoint overflow signal handler: Ok
So at least 2 cases Will doubted are handled correctly.
[1] http://lkml.kernel.org/g/20160104165535.GI1616@arm.com
[2] http://lkml.kernel.org/g/1450921362-198371-1-git-send-email-wangnan0@huawei.com
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: He Kuang <hekuang@huawei.com>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1453715801-7732-9-git-send-email-wangnan0@huawei.com
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/util.h')
0 files changed, 0 insertions, 0 deletions