xref: /openbmc/linux/tools/perf/util/usage.c (revision fef2a735)
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 }
26