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perf bpf: Rename bpf__foreach_tev() to bpf__foreach_event()

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Following commit will allow BPF script attach to tracepoints.
bpf__foreach_tev() will iterate over all events, not only kprobes.
Rename it to bpf__foreach_event().

Since only group and event are used by caller, there's no need to pass
full 'struct probe_trace_event' to bpf_prog_iter_callback_t. Pass only
these two strings. After this patch bpf_prog_iter_callback_t natually
support tracepoints.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1468406646-21642-5-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Wang Nan
2016-07-13 10:44:04 +00:00
committed by Arnaldo Carvalho de Melo
parent 8c619d6a33
commit cd102d70fe
3 changed files with 18 additions and 18 deletions
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8
tools/perf/util/bpf-loader.c
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@@ -693,9 +693,9 @@ int bpf__load(struct bpf_object *obj)
return 0;
}
int bpf__foreach_tev(struct bpf_object *obj,
bpf_prog_iter_callback_t func,
void *arg)
int bpf__foreach_event(struct bpf_object *obj,
bpf_prog_iter_callback_t func,
void *arg)
{
struct bpf_program *prog;
int err;
@@ -728,7 +728,7 @@ int bpf__foreach_tev(struct bpf_object *obj,
return fd;
}
err = (*func)(tev, fd, arg);
err = (*func)(tev->group, tev->event, fd, arg);
if (err) {
pr_debug("bpf: call back failed, stop iterate\n");
return err;