SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF 1643 tools/perf/util/annotate.c case SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF: SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF 1761 tools/perf/util/annotate.c ret = SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF;