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| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2018-05-03 18:37:16 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2018-05-04 23:41:04 +0200 |
| commit | f412eed9dfdeeb6becd7de2ffe8b5d0a8b3f81ca (patch) | |
| tree | c6cf7b305e343a73505d5d1d25ee300a46992147 /tools/bpf/bpftool/Documentation/bpftool.rst | |
| parent | e64d52569f6e847495091db40ab58d2d379748ef (diff) | |
| download | linux-next-f412eed9dfdeeb6becd7de2ffe8b5d0a8b3f81ca.tar.gz | |
tools: bpftool: add simple perf event output reader
Users of BPF sooner or later discover perf_event_output() helpers
and BPF_MAP_TYPE_PERF_EVENT_ARRAY. Dumping this array type is
not possible, however, we can add simple reading of perf events.
Create a new event_pipe subcommand for maps, this sub command
will only work with BPF_MAP_TYPE_PERF_EVENT_ARRAY maps.
Parts of the code from samples/bpf/trace_output_user.c.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/bpf/bpftool/Documentation/bpftool.rst')
| -rw-r--r-- | tools/bpf/bpftool/Documentation/bpftool.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/bpf/bpftool/Documentation/bpftool.rst b/tools/bpf/bpftool/Documentation/bpftool.rst index 20689a321ffe..564cb0d9692b 100644 --- a/tools/bpf/bpftool/Documentation/bpftool.rst +++ b/tools/bpf/bpftool/Documentation/bpftool.rst @@ -23,7 +23,7 @@ SYNOPSIS *MAP-COMMANDS* := { **show** | **list** | **dump** | **update** | **lookup** | **getnext** | **delete** - | **pin** | **help** } + | **pin** | **event_pipe** | **help** } *PROG-COMMANDS* := { **show** | **list** | **dump jited** | **dump xlated** | **pin** | **load** | **help** } |