Linux kernel mirror (for testing)
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1// SPDX-License-Identifier: GPL-2.0
2/*
3 * usage.c
4 *
5 * Various reporting routines.
6 * Originally copied from GIT source.
7 *
8 * Copyright (C) Linus Torvalds, 2005
9 */
10#include "util.h"
11#include "debug.h"
12#include <stdio.h>
13#include <stdlib.h>
14#include <linux/compiler.h>
15
16static __noreturn void usage_builtin(const char *err)
17{
18 fprintf(stderr, "\n Usage: %s\n", err);
19 exit(129);
20}
21
22/* If we are in a dlopen()ed .so write to a global variable would segfault
23 * (ugh), so keep things static. */
24static void (*usage_routine)(const char *err) __noreturn = usage_builtin;
25
26void usage(const char *err)
27{
28 usage_routine(err);
29}