Commit | Line | Data |
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252b5132 | 1 | /* ld.h -- general linker header file |
b90efa5b | 2 | Copyright (C) 1991-2015 Free Software Foundation, Inc. |
252b5132 | 3 | |
f96b4a7b | 4 | This file is part of the GNU Binutils. |
252b5132 | 5 | |
f96b4a7b | 6 | This program is free software; you can redistribute it and/or modify |
252b5132 | 7 | it under the terms of the GNU General Public License as published by |
f96b4a7b NC |
8 | the Free Software Foundation; either version 3 of the License, or |
9 | (at your option) any later version. | |
252b5132 | 10 | |
f96b4a7b | 11 | This program is distributed in the hope that it will be useful, |
252b5132 RH |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
f96b4a7b NC |
17 | along with this program; if not, write to the Free Software |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
19 | MA 02110-1301, USA. */ | |
252b5132 RH |
20 | |
21 | #ifndef LD_H | |
22 | #define LD_H | |
23 | ||
24 | #ifdef HAVE_LOCALE_H | |
a70c2403 NC |
25 | #endif |
26 | #ifndef SEEK_CUR | |
27 | #define SEEK_CUR 1 | |
28 | #endif | |
29 | #ifndef SEEK_END | |
30 | #define SEEK_END 2 | |
31 | #endif | |
32 | ||
a70c2403 NC |
33 | #ifdef HAVE_LOCALE_H |
34 | # ifndef ENABLE_NLS | |
35 | /* The Solaris version of locale.h always includes libintl.h. If we have | |
36 | been configured with --disable-nls then ENABLE_NLS will not be defined | |
37 | and the dummy definitions of bindtextdomain (et al) below will conflict | |
38 | with the defintions in libintl.h. So we define these values to prevent | |
39 | the bogus inclusion of libintl.h. */ | |
40 | # define _LIBINTL_H | |
41 | # define _LIBGETTEXT_H | |
42 | # endif | |
252b5132 RH |
43 | # include <locale.h> |
44 | #endif | |
45 | ||
46 | #ifdef ENABLE_NLS | |
47 | # include <libintl.h> | |
48 | # define _(String) gettext (String) | |
49 | # ifdef gettext_noop | |
50 | # define N_(String) gettext_noop (String) | |
51 | # else | |
52 | # define N_(String) (String) | |
53 | # endif | |
54 | #else | |
897083bd AM |
55 | # define gettext(Msgid) (Msgid) |
56 | # define dgettext(Domainname, Msgid) (Msgid) | |
57 | # define dcgettext(Domainname, Msgid, Category) (Msgid) | |
58 | # define textdomain(Domainname) while (0) /* nothing */ | |
59 | # define bindtextdomain(Domainname, Dirname) while (0) /* nothing */ | |
252b5132 RH |
60 | # define _(String) (String) |
61 | # define N_(String) (String) | |
62 | #endif | |
63 | ||
64 | /* Look in this environment name for the linker to pretend to be */ | |
65 | #define EMULATION_ENVIRON "LDEMULATION" | |
66 | /* If in there look for the strings: */ | |
67 | ||
68 | /* Look in this variable for a target format */ | |
69 | #define TARGET_ENVIRON "GNUTARGET" | |
70 | ||
71 | /* Input sections which are put in a section of this name are actually | |
72 | discarded. */ | |
73 | #define DISCARD_SECTION_NAME "/DISCARD/" | |
74 | ||
18625d54 | 75 | /* A file name list */ |
89cdebba KH |
76 | typedef struct name_list { |
77 | const char *name; | |
78 | struct name_list *next; | |
79 | } | |
80 | name_list; | |
18625d54 | 81 | |
de7dd2bd | 82 | typedef enum {sort_none, sort_ascending, sort_descending} sort_order; |
4724d37e | 83 | |
bcaa7b3e L |
84 | /* A wildcard specification. */ |
85 | ||
86 | typedef enum { | |
02ecc8e9 | 87 | none, by_name, by_alignment, by_name_alignment, by_alignment_name, |
eda680f8 | 88 | by_none, by_init_priority |
bcaa7b3e L |
89 | } sort_type; |
90 | ||
91 | extern sort_type sort_section; | |
252b5132 | 92 | |
89cdebba | 93 | struct wildcard_spec { |
252b5132 | 94 | const char *name; |
18625d54 | 95 | struct name_list *exclude_name_list; |
bcaa7b3e | 96 | sort_type sorted; |
ae17ab41 | 97 | struct flag_info *section_flag_list; |
252b5132 RH |
98 | }; |
99 | ||
b6bf44ba AM |
100 | struct wildcard_list { |
101 | struct wildcard_list *next; | |
102 | struct wildcard_spec spec; | |
103 | }; | |
104 | ||
252b5132 RH |
105 | #define BYTE_SIZE (1) |
106 | #define SHORT_SIZE (2) | |
107 | #define LONG_SIZE (4) | |
108 | #define QUAD_SIZE (8) | |
109 | ||
1e9cc1c2 NC |
110 | enum endian_enum { ENDIAN_UNSET = 0, ENDIAN_BIG, ENDIAN_LITTLE }; |
111 | ||
112 | enum symbolic_enum | |
113 | { | |
114 | symbolic_unset = 0, | |
115 | symbolic, | |
116 | symbolic_functions, | |
117 | }; | |
118 | ||
119 | enum dynamic_list_enum | |
120 | { | |
121 | dynamic_list_unset = 0, | |
122 | dynamic_list_data, | |
123 | dynamic_list | |
124 | }; | |
125 | ||
89cdebba | 126 | typedef struct { |
252b5132 | 127 | /* 1 => assign space to common symbols even if `relocatable_output'. */ |
b34976b6 | 128 | bfd_boolean force_common_definition; |
4818e05f | 129 | |
b7a26f91 | 130 | /* 1 => do not assign addresses to common symbols. */ |
b34976b6 | 131 | bfd_boolean inhibit_common_definition; |
28d5f677 | 132 | |
b34976b6 | 133 | /* If TRUE, build MIPS embedded PIC relocation tables in the output |
252b5132 | 134 | file. */ |
b34976b6 | 135 | bfd_boolean embedded_relocs; |
252b5132 | 136 | |
b34976b6 AM |
137 | /* If TRUE, force generation of a file with a .exe file. */ |
138 | bfd_boolean force_exe_suffix; | |
252b5132 | 139 | |
b34976b6 AM |
140 | /* If TRUE, generate a cross reference report. */ |
141 | bfd_boolean cref; | |
252b5132 | 142 | |
b34976b6 | 143 | /* If TRUE (which is the default), warn about mismatched input |
252b5132 | 144 | files. */ |
b34976b6 | 145 | bfd_boolean warn_mismatch; |
252b5132 | 146 | |
fe7929ce AM |
147 | /* Warn on attempting to open an incompatible library during a library |
148 | search. */ | |
149 | bfd_boolean warn_search_mismatch; | |
150 | ||
02b0b1aa NS |
151 | /* If non-zero check section addresses, once computed, |
152 | for overlaps. Relocatable links only check when this is > 0. */ | |
153 | signed char check_section_addresses; | |
5cc18311 | 154 | |
312b768e NC |
155 | /* If TRUE allow the linking of input files in an unknown architecture |
156 | assuming that the user knows what they are doing. This was the old | |
157 | behaviour of the linker. The new default behaviour is to reject such | |
158 | input files. */ | |
159 | bfd_boolean accept_unknown_input_arch; | |
d8cf8b51 | 160 | |
30824704 RM |
161 | /* If TRUE we'll just print the default output on stdout. */ |
162 | bfd_boolean print_output_format; | |
163 | ||
3604cb1f TG |
164 | /* If set, display the target memory usage (per memory region). */ |
165 | bfd_boolean print_memory_usage; | |
166 | ||
3b95049e | 167 | /* Big or little endian as set on command line. */ |
1e9cc1c2 | 168 | enum endian_enum endian; |
3b95049e | 169 | |
d8cf8b51 | 170 | /* -Bsymbolic and -Bsymbolic-functions, as set on command line. */ |
1e9cc1c2 | 171 | enum symbolic_enum symbolic; |
d8cf8b51 L |
172 | |
173 | /* --dynamic-list, --dynamic-list-cpp-new, --dynamic-list-cpp-typeinfo | |
174 | and --dynamic-list FILE, as set on command line. */ | |
1e9cc1c2 | 175 | enum dynamic_list_enum dynamic_list; |
3b95049e AM |
176 | |
177 | /* Name of runtime interpreter to invoke. */ | |
178 | char *interpreter; | |
179 | ||
180 | /* Name to give runtime libary from the -soname argument. */ | |
181 | char *soname; | |
182 | ||
183 | /* Runtime library search path from the -rpath argument. */ | |
184 | char *rpath; | |
185 | ||
186 | /* Link time runtime library search path from the -rpath-link | |
187 | argument. */ | |
188 | char *rpath_link; | |
189 | ||
190 | /* Name of shared object whose symbol table should be filtered with | |
191 | this shared object. From the --filter option. */ | |
192 | char *filter_shlib; | |
193 | ||
194 | /* Name of shared object for whose symbol table this shared object | |
195 | is an auxiliary filter. From the --auxiliary option. */ | |
196 | char **auxiliary_filters; | |
197 | ||
198 | /* A version symbol to be applied to the symbol names found in the | |
199 | .exports sections. */ | |
200 | char *version_exports_section; | |
201 | ||
202 | /* Default linker script. */ | |
203 | char *default_script; | |
252b5132 RH |
204 | } args_type; |
205 | ||
206 | extern args_type command_line; | |
207 | ||
208 | typedef int token_code_type; | |
209 | ||
c005eb9e AB |
210 | /* Different ways we can handle orphan sections. */ |
211 | ||
212 | enum orphan_handling_enum { | |
213 | /* The classic strategy, find a suitable section to place the orphan | |
214 | into. */ | |
215 | orphan_handling_place = 0, | |
216 | ||
217 | /* Discard any orphan sections as though they were assign to the section | |
218 | /DISCARD/. */ | |
219 | orphan_handling_discard, | |
220 | ||
221 | /* Find somewhere to place the orphan section, as with | |
222 | ORPHAN_HANDLING_PLACE, but also issue a warning. */ | |
223 | orphan_handling_warn, | |
224 | ||
225 | /* Issue a fatal error if any orphan sections are found. */ | |
226 | orphan_handling_error, | |
227 | }; | |
228 | ||
89cdebba | 229 | typedef struct { |
b34976b6 AM |
230 | bfd_boolean magic_demand_paged; |
231 | bfd_boolean make_executable; | |
252b5132 | 232 | |
b34976b6 | 233 | /* If TRUE, -shared is supported. */ |
252b5132 RH |
234 | /* ??? A better way to do this is perhaps to define this in the |
235 | ld_emulation_xfer_struct since this is really a target dependent | |
236 | parameter. */ | |
b34976b6 | 237 | bfd_boolean has_shared; |
252b5132 | 238 | |
b34976b6 AM |
239 | /* If TRUE, build constructors. */ |
240 | bfd_boolean build_constructors; | |
252b5132 | 241 | |
b34976b6 AM |
242 | /* If TRUE, warn about any constructors. */ |
243 | bfd_boolean warn_constructors; | |
252b5132 | 244 | |
b34976b6 AM |
245 | /* If TRUE, warn about merging common symbols with others. */ |
246 | bfd_boolean warn_common; | |
252b5132 | 247 | |
b34976b6 AM |
248 | /* If TRUE, only warn once about a particular undefined symbol. */ |
249 | bfd_boolean warn_once; | |
252b5132 | 250 | |
c005eb9e AB |
251 | /* How should we deal with orphan sections. */ |
252 | enum orphan_handling_enum orphan_handling; | |
3ea60775 | 253 | |
b34976b6 | 254 | /* If TRUE, warn if multiple global-pointers are needed (Alpha |
252b5132 | 255 | only). */ |
b34976b6 | 256 | bfd_boolean warn_multiple_gp; |
252b5132 | 257 | |
b34976b6 | 258 | /* If TRUE, warn if the starting address of an output section |
252b5132 | 259 | changes due to the alignment of an input section. */ |
b34976b6 | 260 | bfd_boolean warn_section_align; |
252b5132 | 261 | |
b34976b6 AM |
262 | /* If TRUE, warning messages are fatal */ |
263 | bfd_boolean fatal_warnings; | |
7ce691ae | 264 | |
de7dd2bd | 265 | sort_order sort_common; |
252b5132 | 266 | |
b34976b6 | 267 | bfd_boolean text_read_only; |
252b5132 | 268 | |
b34976b6 | 269 | bfd_boolean stats; |
252b5132 | 270 | |
a854a4a7 AM |
271 | /* If set, orphan input sections will be mapped to separate output |
272 | sections. */ | |
b34976b6 | 273 | bfd_boolean unique_orphan_sections; |
a854a4a7 | 274 | |
3b95049e AM |
275 | /* If set, only search library directories explicitly selected |
276 | on the command line. */ | |
277 | bfd_boolean only_cmd_line_lib_dirs; | |
361b220e | 278 | |
01554a74 AM |
279 | /* If set, numbers and absolute symbols are simply treated as |
280 | numbers everywhere. */ | |
281 | bfd_boolean sane_expr; | |
282 | ||
4724d37e RM |
283 | /* If set, code and non-code sections should never be in one segment. */ |
284 | bfd_boolean separate_code; | |
285 | ||
c76308d2 RS |
286 | /* The rpath separation character. Usually ':'. */ |
287 | char rpath_separator; | |
288 | ||
3b95049e AM |
289 | char *map_filename; |
290 | FILE *map_file; | |
291 | ||
292 | unsigned int split_by_reloc; | |
293 | bfd_size_type split_by_file; | |
294 | ||
295 | bfd_size_type specified_data_size; | |
2d643429 NC |
296 | |
297 | /* The size of the hash table to use. */ | |
8ad17b3a | 298 | unsigned long hash_table_size; |
24718e3b L |
299 | |
300 | /* The maximum page size for ELF. */ | |
301 | bfd_vma maxpagesize; | |
302 | ||
303 | /* The common page size for ELF. */ | |
304 | bfd_vma commonpagesize; | |
252b5132 RH |
305 | } ld_config_type; |
306 | ||
307 | extern ld_config_type config; | |
308 | ||
b9a8de1e | 309 | extern FILE * saved_script_handle; |
b34976b6 | 310 | extern bfd_boolean force_make_executable; |
252b5132 | 311 | |
1579bae1 AM |
312 | extern int yyparse (void); |
313 | extern void add_cref (const char *, bfd *, asection *, bfd_vma); | |
5061a885 | 314 | extern bfd_boolean handle_asneeded_cref (bfd *, enum notice_asneeded_action); |
1579bae1 AM |
315 | extern void output_cref (FILE *); |
316 | extern void check_nocrossrefs (void); | |
317 | extern void ld_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; | |
45455cdd | 318 | |
a1934524 AM |
319 | /* If gcc >= 2.6, we can give a function name, too. */ |
320 | #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) | |
1579bae1 | 321 | #define __PRETTY_FUNCTION__ NULL |
45455cdd ILT |
322 | #endif |
323 | ||
324 | #undef abort | |
325 | #define abort() ld_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) | |
326 | ||
252b5132 | 327 | #endif |