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| author | Wang Nan <wangnan0@huawei.com> | 2015-08-27 04:30:55 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-08-31 21:53:15 +0200 |
| commit | acf860ae7c53cc8b0c5d372c218332aac3eeba4f (patch) | |
| tree | 95c0521fcfff8e0c2dc88bca26ecb5fd3e9ec885 /tools/lib/bpf/libbpf.h | |
| parent | perf tools: Fix build on powerpc broken by pt/bts (diff) | |
| download | linux-acf860ae7c53cc8b0c5d372c218332aac3eeba4f.tar.xz linux-acf860ae7c53cc8b0c5d372c218332aac3eeba4f.zip | |
bpf tools: New API to get name from a BPF object
Before this patch there's no way to connect a loaded bpf object
to its source file. However, during applying perf's '--filter' to BPF
object, without this connection makes things harder, because perf loads
all programs together, but '--filter' setting is for each object.
The API of bpf_object__open_buffer() is changed to allow passing a name.
Fortunately, at this time there's only one user of it (perf test LLVM),
so we change it together.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: David Ahern <dsahern@gmail.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kaixu Xia <xiakaixu@huawei.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1440742821-44548-2-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/bpf/libbpf.h')
| -rw-r--r-- | tools/lib/bpf/libbpf.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h index ea8adc206b62..f16170c95ffd 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -28,12 +28,14 @@ struct bpf_object; struct bpf_object *bpf_object__open(const char *path); struct bpf_object *bpf_object__open_buffer(void *obj_buf, - size_t obj_buf_sz); + size_t obj_buf_sz, + const char *name); void bpf_object__close(struct bpf_object *object); /* Load/unload object into/from kernel */ int bpf_object__load(struct bpf_object *obj); int bpf_object__unload(struct bpf_object *obj); +const char *bpf_object__get_name(struct bpf_object *obj); struct bpf_object *bpf_object__next(struct bpf_object *prev); #define bpf_object__for_each_safe(pos, tmp) \ |