tools/perf/util/usage.c

   1 /*
   2  * usage.c
   3  *
   4  * Various reporting routines.
   5  * Originally copied from GIT source.
   6  *
   7  * Copyright (C) Linus Torvalds, 2005
   8  */
   9 #include "util.h"
  10 #include "debug.h"
  11
  12 static __noreturn void usage_builtin(const char *err)
  13 {
  14         fprintf(stderr, "\n Usage: %s\n", err);
  15         exit(129);
  16 }
  17
  18 /* If we are in a dlopen()ed .so write to a global variable would segfault
  19  * (ugh), so keep things static. */
  20 static void (*usage_routine)(const char *err) __noreturn = usage_builtin;
  21
  22 void usage(const char *err)
  23 {
  24         usage_routine(err);
  25 }