Extern or forward variable declaration at tools/lib/bpf/btf.h, line 27 References: tools/lib/bpf/btf.c, line 506 tools/lib/bpf/btf.c, line 561 tools/lib/bpf/btf.h, line 27 tools/lib/bpf/btf.h, line 71 tools/lib/bpf/libbpf.c, line 185 tools/lib/bpf/libbpf.c, line 237 tools/lib/bpf/libbpf.c, line 406 tools/lib/bpf/libbpf.c, line 442 tools/lib/bpf/libbpf.c, line 494 tools/lib/bpf/libbpf.c, line 498 tools/lib/bpf/libbpf.c, line 501 tools/lib/bpf/libbpf.c, line 536 tools/lib/bpf/libbpf.c, line 557 tools/lib/bpf/libbpf.c, line 616 tools/lib/bpf/libbpf.c, line 632 tools/lib/bpf/libbpf.c, line 640 tools/lib/bpf/libbpf.c, line 672 tools/lib/bpf/libbpf.c, line 716 tools/lib/bpf/libbpf.c, line 743 tools/lib/bpf/libbpf.c, line 778 tools/lib/bpf/libbpf.c, line 813 tools/lib/bpf/libbpf.c, line 857 tools/lib/bpf/libbpf.c, line 892 tools/lib/bpf/libbpf.c, line 1072 tools/lib/bpf/libbpf.c, line 1270 tools/lib/bpf/libbpf.c, line 1320 tools/lib/bpf/libbpf.c, line 1344 tools/lib/bpf/libbpf.c, line 1362 tools/lib/bpf/libbpf.c, line 1422 tools/lib/bpf/libbpf.c, line 1433 tools/lib/bpf/libbpf.c, line 1438 tools/lib/bpf/libbpf.c, line 1491 tools/lib/bpf/libbpf.c, line 1519 tools/lib/bpf/libbpf.c, line 1663 tools/lib/bpf/libbpf.c, line 1677 tools/lib/bpf/libbpf.c, line 1689 tools/lib/bpf/libbpf.c, line 1697 tools/lib/bpf/libbpf.c, line 1704 tools/lib/bpf/libbpf.c, line 1713 tools/lib/bpf/libbpf.c, line 1727 tools/lib/bpf/libbpf.c, line 1853 tools/lib/bpf/libbpf.c, line 1946 tools/lib/bpf/libbpf.c, line 1986 tools/lib/bpf/libbpf.c, line 2031 tools/lib/bpf/libbpf.c, line 2057 tools/lib/bpf/libbpf.c, line 2085 tools/lib/bpf/libbpf.c, line 2087 tools/lib/bpf/libbpf.c, line 2105 tools/lib/bpf/libbpf.c, line 2133 tools/lib/bpf/libbpf.c, line 2259 tools/lib/bpf/libbpf.c, line 3108 tools/lib/bpf/libbpf.c, line 3177 tools/lib/bpf/libbpf.c, line 3188 tools/lib/bpf/libbpf.c, line 3241 tools/lib/bpf/libbpf.c, line 3295 tools/lib/bpf/libbpf.c, line 3322 tools/lib/bpf/libbpf.c, line 3530 tools/lib/bpf/libbpf.c, line 3536 tools/lib/bpf/libbpf.c, line 3589 tools/lib/bpf/libbpf.c, line 3599 tools/lib/bpf/libbpf.c, line 3603 tools/lib/bpf/libbpf.c, line 3629 tools/lib/bpf/libbpf.c, line 3643 tools/lib/bpf/libbpf.c, line 3648 tools/lib/bpf/libbpf.c, line 3658 tools/lib/bpf/libbpf.c, line 3679 tools/lib/bpf/libbpf.c, line 3697 tools/lib/bpf/libbpf.c, line 3724 tools/lib/bpf/libbpf.c, line 3996 tools/lib/bpf/libbpf.c, line 4052 tools/lib/bpf/libbpf.c, line 4079 tools/lib/bpf/libbpf.c, line 4135 tools/lib/bpf/libbpf.c, line 4162 tools/lib/bpf/libbpf.c, line 4179 tools/lib/bpf/libbpf.c, line 4218 tools/lib/bpf/libbpf.c, line 4219 tools/lib/bpf/libbpf.c, line 4221 tools/lib/bpf/libbpf.c, line 4225 tools/lib/bpf/libbpf.c, line 4237 tools/lib/bpf/libbpf.c, line 4242 tools/lib/bpf/libbpf.c, line 4247 tools/lib/bpf/libbpf.c, line 4252 tools/lib/bpf/libbpf.c, line 4257 tools/lib/bpf/libbpf.c, line 4268 tools/lib/bpf/libbpf.c, line 4274 tools/lib/bpf/libbpf.c, line 4300 tools/lib/bpf/libbpf.c, line 4312 tools/lib/bpf/libbpf.c, line 4718 tools/lib/bpf/libbpf.c, line 4742 tools/lib/bpf/libbpf.c, line 4751 tools/lib/bpf/libbpf.c, line 4763 tools/lib/bpf/libbpf.c, line 4775 tools/lib/bpf/libbpf.c, line 4781 tools/lib/bpf/libbpf.c, line 4792 tools/lib/bpf/libbpf.c, line 4805 tools/lib/bpf/libbpf.c, line 4811