[linux-block.git] / tools / perf / util / usage.c

// 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 "debug.h"

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);
}
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
07800601	2	/*
5f9273d6 NK	3	* usage.c
	4	*
	5	* Various reporting routines.
	6	* Originally copied from GIT source.
07800601 IM	7	*
	8	* Copyright (C) Linus Torvalds, 2005
	9	*/
	10	#include "util.h"
0d37aa34	11	#include "debug.h"
07800601	12
6c346643	13	static __noreturn void usage_builtin(const char *err)
07800601	14	{
716c69fe	15	fprintf(stderr, "\n Usage: %s\n", err);
07800601 IM	16	exit(129);
	17	}
	18
07800601 IM	19	/* If we are in a dlopen()ed .so write to a global variable would segfault
07800601 IM	20	* (ugh), so keep things static. */
6c346643	21	static void (usage_routine)(const char err) __noreturn = usage_builtin;
2690c730	22
07800601 IM	23	void usage(const char *err)
	24	{
	25	usage_routine(err);
	26	}