1// dwp.h -- general definitions for dwp. 2 3// Copyright (C) 2012-2017 Free Software Foundation, Inc. 4// Written by Cary Coutant <ccoutant@google.com>. 5 6// This file is part of dwp, the DWARF packaging utility. 7 8// This program is free software; you can redistribute it and/or modify 9// it under the terms of the GNU General Public License as published by 10// the Free Software Foundation; either version 3 of the License, or 11// (at your option) any later version. 12 13// This program is distributed in the hope that it will be useful, 14// but WITHOUT ANY WARRANTY; without even the implied warranty of 15// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16// GNU General Public License for more details. 17 18// You should have received a copy of the GNU General Public License 19// along with this program; if not, write to the Free Software 20// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 21// MA 02110-1301, USA. 22 23#ifndef DWP_DWP_H 24#define DWP_DWP_H 1 25 26#include "config.h" 27#include "ansidecl.h" 28 29#include <cstddef> 30#include <cstdlib> 31#include <cstring> 32#include <stdint.h> 33#include <sys/types.h> 34 35#include "system.h" 36 37namespace gold 38{ 39 40extern const char* program_name; 41 42class General_options; 43class Command_line; 44class Dirsearch; 45class Input_objects; 46class Mapfile; 47class Symbol; 48class Symbol_table; 49class Layout; 50class Task; 51class Workqueue; 52class Output_file; 53template<int size, bool big_endian> 54struct Relocate_info; 55 56// The size of a section if we are going to look at the contents. 57typedef size_t section_size_type; 58 59// An offset within a section when we are looking at the contents. 60typedef ptrdiff_t section_offset_type; 61 62inline bool 63is_prefix_of(const char* prefix, const char* str) 64{ 65 return strncmp(prefix, str, strlen(prefix)) == 0; 66} 67 68// Exit status codes. 69 70enum Exit_status 71{ 72 GOLD_OK = EXIT_SUCCESS, 73 GOLD_ERR = EXIT_FAILURE, 74 GOLD_FALLBACK = EXIT_FAILURE + 1 75}; 76 77// This function is called to exit the program. Status is true to 78// exit success (0) and false to exit failure (1). 79extern void 80gold_exit(Exit_status status) ATTRIBUTE_NORETURN; 81 82// This function is called to emit an error message and then 83// immediately exit with failure. 84extern void 85gold_fatal(const char* format, ...) ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF_1; 86 87// This function is called to issue a warning. 88extern void 89gold_warning(const char* msg, ...) ATTRIBUTE_PRINTF_1; 90 91// This function is called to print an informational message. 92extern void 93gold_info(const char* msg, ...) ATTRIBUTE_PRINTF_1; 94 95#define gold_unreachable() \ 96 (gold::do_gold_unreachable(__FILE__, __LINE__, \ 97 static_cast<const char*>(__FUNCTION__))) 98 99extern void do_gold_unreachable(const char*, int, const char*) 100 ATTRIBUTE_NORETURN; 101 102// Assertion check. 103 104#define gold_assert(expr) ((void)(!(expr) ? gold_unreachable(), 0 : 0)) 105 106// Convert numeric types without unnoticed loss of precision. 107template<typename To, typename From> 108inline To 109convert_types(const From from) 110{ 111 To to = from; 112 gold_assert(static_cast<From>(to) == from); 113 return to; 114} 115 116// A common case of convert_types<>: convert to section_size_type. 117template<typename From> 118inline section_size_type 119convert_to_section_size_type(const From from) 120{ return convert_types<section_size_type, From>(from); } 121 122}; // End namespace gold. 123 124#endif // !defined(DWP_DWP_H) 125