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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435// 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);}