diff options
| -rw-r--r-- | tools/bpf/bpftool/btf.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/tools/bpf/bpftool/btf.c b/tools/bpf/bpftool/btf.c index 4ba90d81b6a1..b3745ed711ba 100644 --- a/tools/bpf/bpftool/btf.c +++ b/tools/bpf/bpftool/btf.c @@ -77,6 +77,20 @@ static const char *btf_var_linkage_str(__u32 linkage) } } +static const char *btf_func_linkage_str(const struct btf_type *t) +{ + switch (btf_vlen(t)) { + case BTF_FUNC_STATIC: + return "static"; + case BTF_FUNC_GLOBAL: + return "global"; + case BTF_FUNC_EXTERN: + return "extern"; + default: + return "(unknown)"; + } +} + static const char *btf_str(const struct btf *btf, __u32 off) { if (!off) @@ -231,12 +245,17 @@ static int dump_btf_type(const struct btf *btf, __u32 id, printf(" fwd_kind=%s", fwd_kind); break; } - case BTF_KIND_FUNC: - if (json_output) + case BTF_KIND_FUNC: { + const char *linkage = btf_func_linkage_str(t); + + if (json_output) { jsonw_uint_field(w, "type_id", t->type); - else - printf(" type_id=%u", t->type); + jsonw_string_field(w, "linkage", linkage); + } else { + printf(" type_id=%u linkage=%s", t->type, linkage); + } break; + } case BTF_KIND_FUNC_PROTO: { const struct btf_param *p = (const void *)(t + 1); __u16 vlen = BTF_INFO_VLEN(t->info); |