perf bpf: Add defines for map insertion/lookup (382b55db) · Commits · 戴 / test

Starting with a helper for a basic pid_map(), a hash using a pid as a key. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-gdwvq53wltvq6b3g5tdmh0cw@git.kernel.org Signed-off-by:

Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/include/bpf/bpf.h

+11 −0

Original line number	Diff line number	Diff line
		@@ -18,6 +18,17 @@ struct bpf_map {
		unsigned int numa_node;
		};

		#define pid_map(name, value_type) \
		struct bpf_map SEC("maps") name = { \
		.type = BPF_MAP_TYPE_HASH, \
		.key_size = sizeof(pid_t), \
		.value_size = sizeof(value_type), \
		.max_entries = 512, \
		}

		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;

		#define SEC(NAME) __attribute__((section(NAME), used))

		#define probe(function, vars) \

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