Extern or forward variable declaration at tools/perf/util/unwind.h, line 10 References: tools/perf/tests/dwarf-unwind.c, line 29 tools/perf/tests/dwarf-unwind.c, line 100 tools/perf/util/machine.c, line 602 tools/perf/util/machine.c, line 629 tools/perf/util/machine.c, line 660 tools/perf/util/machine.c, line 675 tools/perf/util/machine.c, line 683 tools/perf/util/machine.c, line 741 tools/perf/util/machine.c, line 787 tools/perf/util/machine.c, line 809 tools/perf/util/machine.c, line 821 tools/perf/util/machine.c, line 1721 tools/perf/util/machine.c, line 1776 tools/perf/util/machine.c, line 1865 tools/perf/util/machine.c, line 1931 tools/perf/util/machine.c, line 1949 tools/perf/util/machine.c, line 2042 tools/perf/util/machine.c, line 2162 tools/perf/util/machine.c, line 2247 tools/perf/util/machine.c, line 2306 tools/perf/util/machine.c, line 2445 tools/perf/util/machine.c, line 2446 tools/perf/util/machine.c, line 2551 tools/perf/util/machine.c, line 2656 tools/perf/util/machine.c, line 2870 tools/perf/util/machine.c, line 2890 tools/perf/util/unwind-libdw.c, line 197 tools/perf/util/unwind-libdw.h, line 9 tools/perf/util/unwind-libdw.h, line 16 tools/perf/util/unwind-libunwind-local.c, line 96 tools/perf/util/unwind-libunwind-local.c, line 707 tools/perf/util/unwind-libunwind.c, line 83 tools/perf/util/unwind.h, line 10 tools/perf/util/unwind.h, line 26 tools/perf/util/unwind.h, line 32 tools/perf/util/unwind.h, line 67