| 1 | // dwp.h -- general definitions for dwp. |
| 2 | |
| 3 | // Copyright 2012 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 | |
| 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) |