perf bpf: Rename bpf__foreach_tev() to bpf__foreach_event()
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>
diff --git a/tools/perf/util/bpf-loader.h b/tools/perf/util/bpf-loader.h
index 941e172..f2b737b 100644
--- a/tools/perf/util/bpf-loader.h
+++ b/tools/perf/util/bpf-loader.h
@@ -46,7 +46,7 @@
struct parse_events_term;
#define PERF_BPF_PROBE_GROUP "perf_bpf_probe"
-typedef int (*bpf_prog_iter_callback_t)(struct probe_trace_event *tev,
+typedef int (*bpf_prog_iter_callback_t)(const char *group, const char *event,
int fd, void *arg);
#ifdef HAVE_LIBBPF_SUPPORT
@@ -67,8 +67,8 @@
int bpf__load(struct bpf_object *obj);
int bpf__strerror_load(struct bpf_object *obj, int err,
char *buf, size_t size);
-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);
int bpf__config_obj(struct bpf_object *obj, struct parse_events_term *term,
struct perf_evlist *evlist, int *error_pos);
@@ -107,9 +107,9 @@
static inline int bpf__load(struct bpf_object *obj __maybe_unused) { return 0; }
static inline int
-bpf__foreach_tev(struct bpf_object *obj __maybe_unused,
- bpf_prog_iter_callback_t func __maybe_unused,
- void *arg __maybe_unused)
+bpf__foreach_event(struct bpf_object *obj __maybe_unused,
+ bpf_prog_iter_callback_t func __maybe_unused,
+ void *arg __maybe_unused)
{
return 0;
}