Extern or forward variable declaration at tools/perf/util/string2.h, line 11 References: tools/perf/builtin-kmem.c, line 991 tools/perf/builtin-kmem.c, line 994 tools/perf/builtin-kmem.c, line 1035 tools/perf/builtin-kmem.c, line 1054 tools/perf/builtin-kmem.c, line 1058 tools/perf/builtin-kmem.c, line 1093 tools/perf/builtin-kmem.c, line 1102 tools/perf/builtin-kmem.c, line 1105 tools/perf/builtin-kmem.c, line 1135 tools/perf/builtin-kmem.c, line 1199 tools/perf/builtin-kmem.c, line 1200 tools/perf/builtin-kmem.c, line 1200 tools/perf/builtin-kmem.c, line 1200 tools/perf/builtin-kmem.c, line 1201 tools/perf/builtin-kmem.c, line 1201 tools/perf/builtin-sched.c, line 1974 tools/perf/builtin-sched.c, line 1974 tools/perf/builtin-sched.c, line 1977 tools/perf/builtin-sched.c, line 1980 tools/perf/builtin-sched.c, line 1980 tools/perf/builtin-sched.c, line 1980 tools/perf/builtin-sched.c, line 1981 tools/perf/builtin-sched.c, line 1984 tools/perf/builtin-sched.c, line 2798 tools/perf/builtin-sched.c, line 2798 tools/perf/builtin-sched.c, line 2799 tools/perf/builtin-sched.c, line 2846 tools/perf/builtin-top.c, line 328 tools/perf/util/annotate.c, line 2398 tools/perf/util/evsel.c, line 1642 tools/perf/util/evsel.c, line 1645 tools/perf/util/string.c, line 9 tools/perf/util/string2.h, line 11