Commit-ID: 941a7658e065e339ebdaf27b9a7702f9935d1d4a
Gitweb: https://git.kernel.org/tip/941a7658e065e339ebdaf27b9a7702f9935d1d4a
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Mon, 15 Jul 2019 15:25:41 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Mon, 29 Jul 2019 18:34:40 -0300
perf include bpf: Add bpf_tail_call() prototype
Will be used together with BPF_MAP_TYPE_PROG_ARRAY in
tools/perf/examples/bpf/augmented_raw_syscalls.c.
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Luis Cláudio Gonçalves <lclaudio@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Link: https://lkml.kernel.org/n/tip-pd1bpy8i31nta6jqwdex871g@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/include/bpf/bpf.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/perf/include/bpf/bpf.h b/tools/perf/include/bpf/bpf.h
index 2eac6d804b2d..b422aeef5339 100644
--- a/tools/perf/include/bpf/bpf.h
+++ b/tools/perf/include/bpf/bpf.h
@@ -45,6 +45,8 @@ struct ____btf_map_##name __attribute__((section(".maps." #name), used)) \
static int (*bpf_map_update_elem)(struct bpf_map *map, void *key, void *value, u64 flags) = (void *)BPF_FUNC_map_update_elem;
static void *(*bpf_map_lookup_elem)(struct bpf_map *map, void *key) = (void *)BPF_FUNC_map_lookup_elem;
+static void (*bpf_tail_call)(void *ctx, void *map, int index) = (void *)BPF_FUNC_tail_call;
+
#define SEC(NAME) __attribute__((section(NAME), used))
#define probe(function, vars) \
|