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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-01-24 15:48:05 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-01-25 15:12:11 +0100 |
| commit | f52fdd64f6046ab121688155aebd66b52ce0077d (patch) | |
| tree | 5cc2234dd5483a7b9c0054bee23f0dadde72ddff /tools/perf/examples | |
| parent | 1d59cb1bbd4cbe5a8f8032242cdacea5658129cf (diff) | |
| download | linux-f52fdd64f6046ab121688155aebd66b52ce0077d.tar.bz2 | |
perf bpf examples: Convert etcsnoop to use bpf_map()
Making the code more compact, end result is the same:
# trace -e /home/acme/git/perf/tools/perf/examples/bpf/etcsnoop.c
0.000 ( ): sed/7385 openat(dfd: CWD, filename: "/etc/ld.so.cache", flags: RDONLY|CLOEXEC) ...
2727.723 ( ): cat/7389 openat(dfd: CWD, filename: "/etc/ld.so.cache", flags: RDONLY|CLOEXEC) ...
2728.543 ( ): cat/7389 openat(dfd: CWD, filename: "/etc/passwd") ...
^C
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-znhgz24p0daux2kay200ovc1@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/examples')
| -rw-r--r-- | tools/perf/examples/bpf/etcsnoop.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/tools/perf/examples/bpf/etcsnoop.c b/tools/perf/examples/bpf/etcsnoop.c index 550e69c2e8d1..e81b535346c0 100644 --- a/tools/perf/examples/bpf/etcsnoop.c +++ b/tools/perf/examples/bpf/etcsnoop.c @@ -21,12 +21,8 @@ #include <stdio.h> -struct bpf_map SEC("maps") __augmented_syscalls__ = { - .type = BPF_MAP_TYPE_PERF_EVENT_ARRAY, - .key_size = sizeof(int), - .value_size = sizeof(u32), - .max_entries = __NR_CPUS__, -}; +/* bpf-output associated map */ +bpf_map(__augmented_syscalls__, PERF_EVENT_ARRAY, int, u32, __NR_CPUS__); struct augmented_filename { int size; |