1 // dwp.h -- general definitions for dwp. 2 3 // Copyright (C) 2012-2016 Free Software Foundation, Inc. 4 // Written by Cary Coutant <ccoutant (at) 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 37 namespace gold 38 { 39 40 extern const char* program_name; 41 42 class General_options; 43 class Command_line; 44 class Dirsearch; 45 class Input_objects; 46 class Mapfile; 47 class Symbol; 48 class Symbol_table; 49 class Layout; 50 class Task; 51 class Workqueue; 52 class Output_file; 53 template<int size, bool big_endian> 54 struct Relocate_info; 55 56 // The size of a section if we are going to look at the contents. 57 typedef size_t section_size_type; 58 59 // An offset within a section when we are looking at the contents. 60 typedef ptrdiff_t section_offset_type; 61 62 inline bool 63 is_prefix_of(const char* prefix, const char* str) 64 { 65 return strncmp(prefix, str, strlen(prefix)) == 0; 66 } 67 68 // Exit status codes. 69 70 enum 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). 79 extern void 80 gold_exit(Exit_status status) ATTRIBUTE_NORETURN; 81 82 // This function is called to emit an error message and then 83 // immediately exit with failure. 84 extern void 85 gold_fatal(const char* format, ...) ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF_1; 86 87 // This function is called to issue a warning. 88 extern void 89 gold_warning(const char* msg, ...) ATTRIBUTE_PRINTF_1; 90 91 // This function is called to print an informational message. 92 extern void 93 gold_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 99 extern 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. 107 template<typename To, typename From> 108 inline To 109 convert_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. 117 template<typename From> 118 inline section_size_type 119 convert_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
