diff options
Diffstat (limited to 'tools/bpf/bpftool/feature.c')
| -rw-r--r-- | tools/bpf/bpftool/feature.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tools/bpf/bpftool/feature.c b/tools/bpf/bpftool/feature.c index d6508dde4808..cc731475c74b 100644 --- a/tools/bpf/bpftool/feature.c +++ b/tools/bpf/bpftool/feature.c @@ -438,6 +438,26 @@ static void probe_prog_type(enum bpf_prog_type prog_type, bool *supported_types) print_bool_feature(feat_name, plain_desc, res); } +static void probe_map_type(enum bpf_map_type map_type) +{ + const char *plain_comment = "eBPF map_type "; + char feat_name[128], plain_desc[128]; + size_t maxlen; + bool res; + + res = bpf_probe_map_type(map_type, 0); + + maxlen = sizeof(plain_desc) - strlen(plain_comment) - 1; + if (strlen(map_type_name[map_type]) > maxlen) { + p_info("map type name too long"); + return; + } + + sprintf(feat_name, "have_%s_map_type", map_type_name[map_type]); + sprintf(plain_desc, "%s%s", plain_comment, map_type_name[map_type]); + print_bool_feature(feat_name, plain_desc, res); +} + static int do_probe(int argc, char **argv) { enum probe_component target = COMPONENT_UNSPEC; @@ -507,6 +527,12 @@ static int do_probe(int argc, char **argv) for (i = BPF_PROG_TYPE_UNSPEC + 1; i < ARRAY_SIZE(prog_type_name); i++) probe_prog_type(i, supported_types); + print_end_then_start_section("map_types", + "Scanning eBPF map types..."); + + for (i = BPF_MAP_TYPE_UNSPEC + 1; i < map_type_name_size; i++) + probe_map_type(i); + exit_close_json: if (json_output) { /* End current "section" of probes */ |