162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * usage.c 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * Various reporting routines. 662306a36Sopenharmony_ci * Originally copied from GIT source. 762306a36Sopenharmony_ci * 862306a36Sopenharmony_ci * Copyright (C) Linus Torvalds, 2005 962306a36Sopenharmony_ci */ 1062306a36Sopenharmony_ci#include "util.h" 1162306a36Sopenharmony_ci#include <stdio.h> 1262306a36Sopenharmony_ci#include <stdlib.h> 1362306a36Sopenharmony_ci#include <linux/compiler.h> 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_ciconst char perf_usage_string[] = 1662306a36Sopenharmony_ci "perf [--version] [--help] [OPTIONS] COMMAND [ARGS]"; 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_ciconst char perf_more_info_string[] = 1962306a36Sopenharmony_ci "See 'perf help COMMAND' for more information on a specific command."; 2062306a36Sopenharmony_ci 2162306a36Sopenharmony_cistatic __noreturn void usage_builtin(const char *err) 2262306a36Sopenharmony_ci{ 2362306a36Sopenharmony_ci fprintf(stderr, "\n Usage: %s\n", err); 2462306a36Sopenharmony_ci exit(129); 2562306a36Sopenharmony_ci} 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_ci/* If we are in a dlopen()ed .so write to a global variable would segfault 2862306a36Sopenharmony_ci * (ugh), so keep things static. */ 2962306a36Sopenharmony_cistatic void (*usage_routine)(const char *err) __noreturn = usage_builtin; 3062306a36Sopenharmony_ci 3162306a36Sopenharmony_civoid usage(const char *err) 3262306a36Sopenharmony_ci{ 3362306a36Sopenharmony_ci usage_routine(err); 3462306a36Sopenharmony_ci} 35