diff options
Diffstat (limited to 'tools/bpf/bpftool/btf.c')
| -rw-r--r-- | tools/bpf/bpftool/btf.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/tools/bpf/bpftool/btf.c b/tools/bpf/bpftool/btf.c index 6b14cbfa58aa..946612029dee 100644 --- a/tools/bpf/bpftool/btf.c +++ b/tools/bpf/bpftool/btf.c @@ -905,7 +905,8 @@ static int do_dump(int argc, char **argv) return -1; } - fd = map_parse_fd_and_info(&argc, &argv, &info, &len); + fd = map_parse_fd_and_info(&argc, &argv, &info, &len, + BPF_F_RDONLY); if (fd < 0) return -1; @@ -1118,10 +1119,13 @@ build_btf_type_table(struct hashmap *tab, enum bpf_obj_type type, [BPF_OBJ_PROG] = "prog", [BPF_OBJ_MAP] = "map", }; + LIBBPF_OPTS(bpf_get_fd_by_id_opts, opts_ro); __u32 btf_id, id = 0; int err; int fd; + opts_ro.open_flags = BPF_F_RDONLY; + while (true) { switch (type) { case BPF_OBJ_PROG: @@ -1151,7 +1155,7 @@ build_btf_type_table(struct hashmap *tab, enum bpf_obj_type type, fd = bpf_prog_get_fd_by_id(id); break; case BPF_OBJ_MAP: - fd = bpf_map_get_fd_by_id(id); + fd = bpf_map_get_fd_by_id_opts(id, &opts_ro); break; default: err = -1; |