Commit b45d5511 authored Jan 24, 2019 by Arnaldo Carvalho de Melo

perf bpf: Add bpf_map() helper

To make the declaration of maps more compact, the following patches will
make use of it.

Standardizing on it will allow to add the BTF details, i.e.
BPF_ANNOTATE_KV_PAIR() (tools/testing/selftests/bpf/bpf_helpers.h)
transparently.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: Yonghong Song <yhs@fb.com>
Link: https://lkml.kernel.org/n/tip-h3q9rxxkbzetgnbro5rclqft@git.kernel.org

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent 35ea7e4b

tools/perf/include/bpf/bpf.h

+8 −0

Original line number	Diff line number	Diff line
		@@ -18,6 +18,14 @@ struct bpf_map {
		unsigned int numa_node;
		};

		#define bpf_map(name, _type, type_key, type_val, _max_entries) \
		struct bpf_map SEC("maps") name = { \
		.type = BPF_MAP_TYPE_##_type, \
		.key_size = sizeof(type_key), \
		.value_size = sizeof(type_val), \
		.max_entries = _max_entries, \
		}

		/*
		* FIXME: this should receive .max_entries as a parameter, as careful
		* tuning of these limits is needed to avoid hitting limits that