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author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2018-05-10 10:24:40 -0700 |
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committer | Daniel Borkmann <daniel@iogearbox.net> | 2018-05-11 01:40:52 +0200 |
commit | d0cabbb021bee5c4b831a0235af9534ad07f8d3d (patch) | |
tree | 7843337206d80588110d9112d49836624b09be64 /tools/lib/bpf/libbpf.h | |
parent | samples: bpf: compile and link against full libbpf (diff) | |
download | linux-dev-d0cabbb021bee5c4b831a0235af9534ad07f8d3d.tar.xz linux-dev-d0cabbb021bee5c4b831a0235af9534ad07f8d3d.zip |
tools: bpf: move the event reading loop to libbpf
There are two copies of event reading loop - in bpftool and
trace_helpers "library". Consolidate them and move the code
to libbpf. Return codes from trace_helpers are kept, but
renamed to include LIBBPF prefix.
Suggested-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/lib/bpf/libbpf.h')
-rw-r--r-- | tools/lib/bpf/libbpf.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h index 197f9ce2248c..ce681097584e 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -267,4 +267,17 @@ int bpf_prog_load(const char *file, enum bpf_prog_type type, struct bpf_object **pobj, int *prog_fd); int bpf_set_link_xdp_fd(int ifindex, int fd, __u32 flags); + +enum bpf_perf_event_ret { + LIBBPF_PERF_EVENT_DONE = 0, + LIBBPF_PERF_EVENT_ERROR = -1, + LIBBPF_PERF_EVENT_CONT = -2, +}; + +typedef enum bpf_perf_event_ret (*bpf_perf_event_print_t)(void *event, + void *priv); +int bpf_perf_event_read_simple(void *mem, unsigned long size, + unsigned long page_size, + void **buf, size_t *buf_len, + bpf_perf_event_print_t fn, void *priv); #endif |