Commit | Line | Data |
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252b5132 | 1 | /* ld.h -- general linker header file |
aef6203b | 2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
8d25cc3d | 3 | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | ||
f96b4a7b | 6 | This file is part of the GNU Binutils. |
252b5132 | 7 | |
f96b4a7b | 8 | This program is free software; you can redistribute it and/or modify |
252b5132 | 9 | it under the terms of the GNU General Public License as published by |
f96b4a7b NC |
10 | the Free Software Foundation; either version 3 of the License, or |
11 | (at your option) any later version. | |
252b5132 | 12 | |
f96b4a7b | 13 | This program is distributed in the hope that it will be useful, |
252b5132 RH |
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 | |
f96b4a7b NC |
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. */ | |
252b5132 RH |
22 | |
23 | #ifndef LD_H | |
24 | #define LD_H | |
25 | ||
26 | #ifdef HAVE_LOCALE_H | |
a70c2403 NC |
27 | #endif |
28 | #ifndef SEEK_CUR | |
29 | #define SEEK_CUR 1 | |
30 | #endif | |
31 | #ifndef SEEK_END | |
32 | #define SEEK_END 2 | |
33 | #endif | |
34 | ||
a70c2403 NC |
35 | #ifdef HAVE_LOCALE_H |
36 | # ifndef ENABLE_NLS | |
37 | /* The Solaris version of locale.h always includes libintl.h. If we have | |
38 | been configured with --disable-nls then ENABLE_NLS will not be defined | |
39 | and the dummy definitions of bindtextdomain (et al) below will conflict | |
40 | with the defintions in libintl.h. So we define these values to prevent | |
41 | the bogus inclusion of libintl.h. */ | |
42 | # define _LIBINTL_H | |
43 | # define _LIBGETTEXT_H | |
44 | # endif | |
252b5132 RH |
45 | # include <locale.h> |
46 | #endif | |
47 | ||
48 | #ifdef ENABLE_NLS | |
49 | # include <libintl.h> | |
50 | # define _(String) gettext (String) | |
51 | # ifdef gettext_noop | |
52 | # define N_(String) gettext_noop (String) | |
53 | # else | |
54 | # define N_(String) (String) | |
55 | # endif | |
56 | #else | |
897083bd AM |
57 | # define gettext(Msgid) (Msgid) |
58 | # define dgettext(Domainname, Msgid) (Msgid) | |
59 | # define dcgettext(Domainname, Msgid, Category) (Msgid) | |
60 | # define textdomain(Domainname) while (0) /* nothing */ | |
61 | # define bindtextdomain(Domainname, Dirname) while (0) /* nothing */ | |
252b5132 RH |
62 | # define _(String) (String) |
63 | # define N_(String) (String) | |
64 | #endif | |
65 | ||
66 | /* Look in this environment name for the linker to pretend to be */ | |
67 | #define EMULATION_ENVIRON "LDEMULATION" | |
68 | /* If in there look for the strings: */ | |
69 | ||
70 | /* Look in this variable for a target format */ | |
71 | #define TARGET_ENVIRON "GNUTARGET" | |
72 | ||
73 | /* Input sections which are put in a section of this name are actually | |
74 | discarded. */ | |
75 | #define DISCARD_SECTION_NAME "/DISCARD/" | |
76 | ||
18625d54 | 77 | /* A file name list */ |
89cdebba KH |
78 | typedef struct name_list { |
79 | const char *name; | |
80 | struct name_list *next; | |
81 | } | |
82 | name_list; | |
18625d54 | 83 | |
de7dd2bd NC |
84 | typedef enum {sort_none, sort_ascending, sort_descending} sort_order; |
85 | ||
bcaa7b3e L |
86 | /* A wildcard specification. */ |
87 | ||
88 | typedef enum { | |
89 | none, by_name, by_alignment, by_name_alignment, by_alignment_name | |
90 | } sort_type; | |
91 | ||
92 | extern sort_type sort_section; | |
252b5132 | 93 | |
89cdebba | 94 | struct wildcard_spec { |
252b5132 | 95 | const char *name; |
18625d54 | 96 | struct name_list *exclude_name_list; |
bcaa7b3e | 97 | sort_type sorted; |
252b5132 RH |
98 | }; |
99 | ||
b6bf44ba AM |
100 | struct wildcard_list { |
101 | struct wildcard_list *next; | |
102 | struct wildcard_spec spec; | |
103 | }; | |
104 | ||
35835446 JR |
105 | struct map_symbol_def { |
106 | struct bfd_link_hash_entry *entry; | |
107 | struct map_symbol_def *next; | |
108 | }; | |
109 | ||
35835446 JR |
110 | /* The initial part of fat_user_section_struct has to be idential with |
111 | lean_user_section_struct. */ | |
112 | typedef struct fat_user_section_struct { | |
35835446 JR |
113 | /* For input sections, when writing a map file: head / tail of a linked |
114 | list of hash table entries for symbols defined in this section. */ | |
115 | struct map_symbol_def *map_symbol_def_head; | |
116 | struct map_symbol_def **map_symbol_def_tail; | |
02688209 | 117 | unsigned long map_symbol_def_count; |
35835446 JR |
118 | } fat_section_userdata_type; |
119 | ||
252b5132 RH |
120 | #define get_userdata(x) ((x)->userdata) |
121 | ||
122 | #define BYTE_SIZE (1) | |
123 | #define SHORT_SIZE (2) | |
124 | #define LONG_SIZE (4) | |
125 | #define QUAD_SIZE (8) | |
126 | ||
1e9cc1c2 NC |
127 | enum endian_enum { ENDIAN_UNSET = 0, ENDIAN_BIG, ENDIAN_LITTLE }; |
128 | ||
129 | enum symbolic_enum | |
130 | { | |
131 | symbolic_unset = 0, | |
132 | symbolic, | |
133 | symbolic_functions, | |
134 | }; | |
135 | ||
136 | enum dynamic_list_enum | |
137 | { | |
138 | dynamic_list_unset = 0, | |
139 | dynamic_list_data, | |
140 | dynamic_list | |
141 | }; | |
142 | ||
89cdebba | 143 | typedef struct { |
252b5132 | 144 | /* 1 => assign space to common symbols even if `relocatable_output'. */ |
b34976b6 | 145 | bfd_boolean force_common_definition; |
4818e05f | 146 | |
b7a26f91 | 147 | /* 1 => do not assign addresses to common symbols. */ |
b34976b6 AM |
148 | bfd_boolean inhibit_common_definition; |
149 | bfd_boolean relax; | |
252b5132 | 150 | |
b34976b6 | 151 | /* If TRUE, build MIPS embedded PIC relocation tables in the output |
252b5132 | 152 | file. */ |
b34976b6 | 153 | bfd_boolean embedded_relocs; |
252b5132 | 154 | |
b34976b6 AM |
155 | /* If TRUE, force generation of a file with a .exe file. */ |
156 | bfd_boolean force_exe_suffix; | |
252b5132 | 157 | |
b34976b6 AM |
158 | /* If TRUE, generate a cross reference report. */ |
159 | bfd_boolean cref; | |
252b5132 | 160 | |
b34976b6 | 161 | /* If TRUE (which is the default), warn about mismatched input |
252b5132 | 162 | files. */ |
b34976b6 | 163 | bfd_boolean warn_mismatch; |
252b5132 | 164 | |
fe7929ce AM |
165 | /* Warn on attempting to open an incompatible library during a library |
166 | search. */ | |
167 | bfd_boolean warn_search_mismatch; | |
168 | ||
02b0b1aa NS |
169 | /* If non-zero check section addresses, once computed, |
170 | for overlaps. Relocatable links only check when this is > 0. */ | |
171 | signed char check_section_addresses; | |
5cc18311 | 172 | |
312b768e NC |
173 | /* If TRUE allow the linking of input files in an unknown architecture |
174 | assuming that the user knows what they are doing. This was the old | |
175 | behaviour of the linker. The new default behaviour is to reject such | |
176 | input files. */ | |
177 | bfd_boolean accept_unknown_input_arch; | |
d8cf8b51 | 178 | |
3b95049e | 179 | /* Big or little endian as set on command line. */ |
1e9cc1c2 | 180 | enum endian_enum endian; |
3b95049e | 181 | |
d8cf8b51 | 182 | /* -Bsymbolic and -Bsymbolic-functions, as set on command line. */ |
1e9cc1c2 | 183 | enum symbolic_enum symbolic; |
d8cf8b51 L |
184 | |
185 | /* --dynamic-list, --dynamic-list-cpp-new, --dynamic-list-cpp-typeinfo | |
186 | and --dynamic-list FILE, as set on command line. */ | |
1e9cc1c2 | 187 | enum dynamic_list_enum dynamic_list; |
3b95049e AM |
188 | |
189 | /* Name of runtime interpreter to invoke. */ | |
190 | char *interpreter; | |
191 | ||
192 | /* Name to give runtime libary from the -soname argument. */ | |
193 | char *soname; | |
194 | ||
195 | /* Runtime library search path from the -rpath argument. */ | |
196 | char *rpath; | |
197 | ||
198 | /* Link time runtime library search path from the -rpath-link | |
199 | argument. */ | |
200 | char *rpath_link; | |
201 | ||
202 | /* Name of shared object whose symbol table should be filtered with | |
203 | this shared object. From the --filter option. */ | |
204 | char *filter_shlib; | |
205 | ||
206 | /* Name of shared object for whose symbol table this shared object | |
207 | is an auxiliary filter. From the --auxiliary option. */ | |
208 | char **auxiliary_filters; | |
209 | ||
210 | /* A version symbol to be applied to the symbol names found in the | |
211 | .exports sections. */ | |
212 | char *version_exports_section; | |
213 | ||
214 | /* Default linker script. */ | |
215 | char *default_script; | |
252b5132 RH |
216 | } args_type; |
217 | ||
218 | extern args_type command_line; | |
219 | ||
220 | typedef int token_code_type; | |
221 | ||
89cdebba | 222 | typedef struct { |
b34976b6 AM |
223 | bfd_boolean magic_demand_paged; |
224 | bfd_boolean make_executable; | |
252b5132 | 225 | |
b34976b6 AM |
226 | /* If TRUE, doing a dynamic link. */ |
227 | bfd_boolean dynamic_link; | |
252b5132 | 228 | |
b34976b6 | 229 | /* If TRUE, -shared is supported. */ |
252b5132 RH |
230 | /* ??? A better way to do this is perhaps to define this in the |
231 | ld_emulation_xfer_struct since this is really a target dependent | |
232 | parameter. */ | |
b34976b6 | 233 | bfd_boolean has_shared; |
252b5132 | 234 | |
b34976b6 AM |
235 | /* If TRUE, build constructors. */ |
236 | bfd_boolean build_constructors; | |
252b5132 | 237 | |
b34976b6 AM |
238 | /* If TRUE, warn about any constructors. */ |
239 | bfd_boolean warn_constructors; | |
252b5132 | 240 | |
b34976b6 AM |
241 | /* If TRUE, warn about merging common symbols with others. */ |
242 | bfd_boolean warn_common; | |
252b5132 | 243 | |
b34976b6 AM |
244 | /* If TRUE, only warn once about a particular undefined symbol. */ |
245 | bfd_boolean warn_once; | |
252b5132 | 246 | |
b34976b6 | 247 | /* If TRUE, warn if multiple global-pointers are needed (Alpha |
252b5132 | 248 | only). */ |
b34976b6 | 249 | bfd_boolean warn_multiple_gp; |
252b5132 | 250 | |
b34976b6 | 251 | /* If TRUE, warn if the starting address of an output section |
252b5132 | 252 | changes due to the alignment of an input section. */ |
b34976b6 | 253 | bfd_boolean warn_section_align; |
252b5132 | 254 | |
b34976b6 AM |
255 | /* If TRUE, warning messages are fatal */ |
256 | bfd_boolean fatal_warnings; | |
7ce691ae | 257 | |
de7dd2bd | 258 | sort_order sort_common; |
252b5132 | 259 | |
b34976b6 | 260 | bfd_boolean text_read_only; |
252b5132 | 261 | |
b34976b6 | 262 | bfd_boolean stats; |
252b5132 | 263 | |
a854a4a7 AM |
264 | /* If set, orphan input sections will be mapped to separate output |
265 | sections. */ | |
b34976b6 | 266 | bfd_boolean unique_orphan_sections; |
a854a4a7 | 267 | |
3b95049e AM |
268 | /* If set, only search library directories explicitly selected |
269 | on the command line. */ | |
270 | bfd_boolean only_cmd_line_lib_dirs; | |
361b220e | 271 | |
c76308d2 RS |
272 | /* The rpath separation character. Usually ':'. */ |
273 | char rpath_separator; | |
274 | ||
3b95049e AM |
275 | char *map_filename; |
276 | FILE *map_file; | |
277 | ||
278 | unsigned int split_by_reloc; | |
279 | bfd_size_type split_by_file; | |
280 | ||
281 | bfd_size_type specified_data_size; | |
2d643429 NC |
282 | |
283 | /* The size of the hash table to use. */ | |
284 | bfd_size_type hash_table_size; | |
24718e3b L |
285 | |
286 | /* The maximum page size for ELF. */ | |
287 | bfd_vma maxpagesize; | |
288 | ||
289 | /* The common page size for ELF. */ | |
290 | bfd_vma commonpagesize; | |
252b5132 RH |
291 | } ld_config_type; |
292 | ||
293 | extern ld_config_type config; | |
294 | ||
b9a8de1e | 295 | extern FILE * saved_script_handle; |
b34976b6 | 296 | extern bfd_boolean force_make_executable; |
252b5132 RH |
297 | |
298 | /* Non-zero if we are processing a --defsym from the command line. */ | |
299 | extern int parsing_defsym; | |
300 | ||
1579bae1 AM |
301 | extern int yyparse (void); |
302 | extern void add_cref (const char *, bfd *, asection *, bfd_vma); | |
5061a885 | 303 | extern bfd_boolean handle_asneeded_cref (bfd *, enum notice_asneeded_action); |
1579bae1 AM |
304 | extern void output_cref (FILE *); |
305 | extern void check_nocrossrefs (void); | |
306 | extern void ld_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; | |
45455cdd | 307 | |
a1934524 AM |
308 | /* If gcc >= 2.6, we can give a function name, too. */ |
309 | #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) | |
1579bae1 | 310 | #define __PRETTY_FUNCTION__ NULL |
45455cdd ILT |
311 | #endif |
312 | ||
313 | #undef abort | |
314 | #define abort() ld_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) | |
315 | ||
252b5132 | 316 | #endif |