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1 | // dwp.h -- general definitions for dwp. |
2 | ||
219d1afa | 3 | // Copyright (C) 2012-2018 Free Software Foundation, Inc. |
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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 | ||
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91 | // This function is called to print an informational message. |
92 | extern void | |
93 | gold_info(const char* msg, ...) ATTRIBUTE_PRINTF_1; | |
94 | ||
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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) |