diff options
| author | Wang Nan <wangnan0@huawei.com> | 2016-11-14 12:01:18 +0800 |
|---|---|---|
| committer | Wang Nan <wangnan0@huawei.com> | 2016-11-14 12:41:20 +0800 |
| commit | a804e856f163c83a7188b14941d6a93de09893d7 (patch) | |
| tree | 90f3f5592d28fc8f7ec980048b499aa9e2c4f7e6 | |
| parent | 532368a84e2426e887dac7ffb9d56d3aefdc348f (diff) | |
| download | linux-perf/clang.tar.gz | |
perf clang git: Export getpid() to perf hookperf/clang
After this patch perf hooks can retrive pid of perf itself by calling
getpid. It is important for excluding event from perf.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
| -rw-r--r-- | tools/perf/util/c++/bpf-helper-str.c | 1 | ||||
| -rw-r--r-- | tools/perf/util/c++/clang.cpp | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/c++/bpf-helper-str.c b/tools/perf/util/c++/bpf-helper-str.c index 69aca3cc12a0af..eedee892f43ba1 100644 --- a/tools/perf/util/c++/bpf-helper-str.c +++ b/tools/perf/util/c++/bpf-helper-str.c @@ -13,6 +13,7 @@ const char clang_builtin_bpf_helper_str[] = "extern void test__clang_callback(int);\n" "extern int printf(const char *, ...);\n" "extern int puts(const char *);\n" +"extern int getpid(void);\n" "extern int jit_helper__map_update_elem(void *, void *, void *, void *, unsigned long);\n" "extern int jit_helper__map_lookup_elem(void *, void *, void *, void *);\n" "extern int jit_helper__map_get_next_key(void *, void *, void *, void *);\n" diff --git a/tools/perf/util/c++/clang.cpp b/tools/perf/util/c++/clang.cpp index db31fb2c5b3d22..d6af336c1cff1a 100644 --- a/tools/perf/util/c++/clang.cpp +++ b/tools/perf/util/c++/clang.cpp @@ -236,6 +236,7 @@ static std::map<const std::string, const void *> exported_funcs = EXPORT(test__clang_callback), EXPORT(printf), EXPORT(puts), + EXPORT(getpid), EXPORT(JIT_HELPER_FUNC_NAME(map_update_elem)), EXPORT(JIT_HELPER_FUNC_NAME(map_lookup_elem)), EXPORT(JIT_HELPER_FUNC_NAME(map_get_next_key)), |