Cregit: Linux 6.9: usage.c

Contributors: 5
Author	Tokens	Token Proportion	Commits	Commit Proportion
Ingo Molnar	71	83.53%	2	25.00%
Arnaldo Carvalho de Melo	6	7.06%	2	25.00%
Namhyung Kim	6	7.06%	2	25.00%
Jiri Olsa	1	1.18%	1	12.50%
Greg Kroah-Hartman	1	1.18%	1	12.50%
Total	85		8

// SPDX-License-Identifier: GPL-2.0
/*
 * usage.c
 *
 * Various reporting routines.
 * Originally copied from GIT source.
 *
 * Copyright (C) Linus Torvalds, 2005
 */
#include "util.h"
#include <stdio.h>
#include <stdlib.h>
#include <linux/compiler.h>

const char perf_usage_string[] =
	"perf [--version] [--help] [OPTIONS] COMMAND [ARGS]";

const char perf_more_info_string[] =
	"See 'perf help COMMAND' for more information on a specific command.";

static __noreturn void usage_builtin(const char *err)
{
	fprintf(stderr, "\n Usage: %s\n", err);
	exit(129);
}

/* If we are in a dlopen()ed .so write to a global variable would segfault
 * (ugh), so keep things static. */
static void (*usage_routine)(const char *err) __noreturn = usage_builtin;

void usage(const char *err)
{
	usage_routine(err);
}