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, |
72223188 | 3 | 2001, 2002, 2003, 2004, 2005 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | ||
6 | This file is part of GLD, the Gnu Linker. | |
7 | ||
8 | GLD 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 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GLD 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 GLD; see the file COPYING. If not, write to the Free | |
75be928b NC |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 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 | ||
35 | #if defined(__GNUC__) && !defined(C_ALLOCA) | |
36 | # undef alloca | |
37 | # define alloca __builtin_alloca | |
38 | #else | |
39 | # if defined(HAVE_ALLOCA_H) && !defined(C_ALLOCA) | |
40 | # include <alloca.h> | |
41 | # else | |
42 | # ifndef alloca /* predefined by HP cc +Olibcalls */ | |
43 | # if !defined (__STDC__) && !defined (__hpux) | |
44 | char *alloca (); | |
45 | # else | |
46 | void *alloca (); | |
47 | # endif /* __STDC__, __hpux */ | |
48 | # endif /* alloca */ | |
49 | # endif /* HAVE_ALLOCA_H */ | |
50 | #endif | |
51 | ||
52 | ||
53 | #ifdef HAVE_LOCALE_H | |
54 | # ifndef ENABLE_NLS | |
55 | /* The Solaris version of locale.h always includes libintl.h. If we have | |
56 | been configured with --disable-nls then ENABLE_NLS will not be defined | |
57 | and the dummy definitions of bindtextdomain (et al) below will conflict | |
58 | with the defintions in libintl.h. So we define these values to prevent | |
59 | the bogus inclusion of libintl.h. */ | |
60 | # define _LIBINTL_H | |
61 | # define _LIBGETTEXT_H | |
62 | # endif | |
252b5132 RH |
63 | # include <locale.h> |
64 | #endif | |
65 | ||
66 | #ifdef ENABLE_NLS | |
67 | # include <libintl.h> | |
68 | # define _(String) gettext (String) | |
69 | # ifdef gettext_noop | |
70 | # define N_(String) gettext_noop (String) | |
71 | # else | |
72 | # define N_(String) (String) | |
73 | # endif | |
74 | #else | |
897083bd AM |
75 | # define gettext(Msgid) (Msgid) |
76 | # define dgettext(Domainname, Msgid) (Msgid) | |
77 | # define dcgettext(Domainname, Msgid, Category) (Msgid) | |
78 | # define textdomain(Domainname) while (0) /* nothing */ | |
79 | # define bindtextdomain(Domainname, Dirname) while (0) /* nothing */ | |
252b5132 RH |
80 | # define _(String) (String) |
81 | # define N_(String) (String) | |
82 | #endif | |
83 | ||
c20f4f8c AM |
84 | #include "bin-bugs.h" |
85 | ||
252b5132 RH |
86 | /* Look in this environment name for the linker to pretend to be */ |
87 | #define EMULATION_ENVIRON "LDEMULATION" | |
88 | /* If in there look for the strings: */ | |
89 | ||
90 | /* Look in this variable for a target format */ | |
91 | #define TARGET_ENVIRON "GNUTARGET" | |
92 | ||
93 | /* Input sections which are put in a section of this name are actually | |
94 | discarded. */ | |
95 | #define DISCARD_SECTION_NAME "/DISCARD/" | |
96 | ||
18625d54 | 97 | /* A file name list */ |
89cdebba KH |
98 | typedef struct name_list { |
99 | const char *name; | |
100 | struct name_list *next; | |
101 | } | |
102 | name_list; | |
18625d54 | 103 | |
bcaa7b3e L |
104 | /* A wildcard specification. */ |
105 | ||
106 | typedef enum { | |
107 | none, by_name, by_alignment, by_name_alignment, by_alignment_name | |
108 | } sort_type; | |
109 | ||
110 | extern sort_type sort_section; | |
252b5132 | 111 | |
89cdebba | 112 | struct wildcard_spec { |
252b5132 | 113 | const char *name; |
18625d54 | 114 | struct name_list *exclude_name_list; |
bcaa7b3e | 115 | sort_type sorted; |
252b5132 RH |
116 | }; |
117 | ||
b6bf44ba AM |
118 | struct wildcard_list { |
119 | struct wildcard_list *next; | |
120 | struct wildcard_spec spec; | |
121 | }; | |
122 | ||
35835446 JR |
123 | struct map_symbol_def { |
124 | struct bfd_link_hash_entry *entry; | |
125 | struct map_symbol_def *next; | |
126 | }; | |
127 | ||
35835446 JR |
128 | /* The initial part of fat_user_section_struct has to be idential with |
129 | lean_user_section_struct. */ | |
130 | typedef struct fat_user_section_struct { | |
35835446 JR |
131 | /* For input sections, when writing a map file: head / tail of a linked |
132 | list of hash table entries for symbols defined in this section. */ | |
133 | struct map_symbol_def *map_symbol_def_head; | |
134 | struct map_symbol_def **map_symbol_def_tail; | |
135 | } fat_section_userdata_type; | |
136 | ||
252b5132 RH |
137 | #define get_userdata(x) ((x)->userdata) |
138 | ||
139 | #define BYTE_SIZE (1) | |
140 | #define SHORT_SIZE (2) | |
141 | #define LONG_SIZE (4) | |
142 | #define QUAD_SIZE (8) | |
143 | ||
89cdebba | 144 | typedef struct { |
252b5132 | 145 | /* 1 => assign space to common symbols even if `relocatable_output'. */ |
b34976b6 | 146 | bfd_boolean force_common_definition; |
4818e05f | 147 | |
b7a26f91 | 148 | /* 1 => do not assign addresses to common symbols. */ |
b34976b6 AM |
149 | bfd_boolean inhibit_common_definition; |
150 | bfd_boolean relax; | |
252b5132 RH |
151 | |
152 | /* Name of runtime interpreter to invoke. */ | |
153 | char *interpreter; | |
154 | ||
155 | /* Name to give runtime libary from the -soname argument. */ | |
156 | char *soname; | |
157 | ||
158 | /* Runtime library search path from the -rpath argument. */ | |
159 | char *rpath; | |
160 | ||
161 | /* Link time runtime library search path from the -rpath-link | |
162 | argument. */ | |
163 | char *rpath_link; | |
164 | ||
165 | /* Big or little endian as set on command line. */ | |
166 | enum { ENDIAN_UNSET = 0, ENDIAN_BIG, ENDIAN_LITTLE } endian; | |
167 | ||
b34976b6 | 168 | /* If TRUE, build MIPS embedded PIC relocation tables in the output |
252b5132 | 169 | file. */ |
b34976b6 | 170 | bfd_boolean embedded_relocs; |
252b5132 | 171 | |
b34976b6 AM |
172 | /* If TRUE, force generation of a file with a .exe file. */ |
173 | bfd_boolean force_exe_suffix; | |
252b5132 | 174 | |
b34976b6 AM |
175 | /* If TRUE, generate a cross reference report. */ |
176 | bfd_boolean cref; | |
252b5132 | 177 | |
b34976b6 | 178 | /* If TRUE (which is the default), warn about mismatched input |
252b5132 | 179 | files. */ |
b34976b6 | 180 | bfd_boolean warn_mismatch; |
252b5132 | 181 | |
252b5132 RH |
182 | /* Name of shared object whose symbol table should be filtered with |
183 | this shared object. From the --filter option. */ | |
184 | char *filter_shlib; | |
185 | ||
186 | /* Name of shared object for whose symbol table this shared object | |
187 | is an auxiliary filter. From the --auxiliary option. */ | |
188 | char **auxiliary_filters; | |
189 | ||
190 | /* A version symbol to be applied to the symbol names found in the | |
191 | .exports sections. */ | |
192 | char *version_exports_section; | |
193 | ||
b34976b6 | 194 | /* If TRUE (the default) check section addresses, once compute, |
252b5132 | 195 | fpor overlaps. */ |
b34976b6 | 196 | bfd_boolean check_section_addresses; |
5cc18311 | 197 | |
312b768e NC |
198 | /* If TRUE allow the linking of input files in an unknown architecture |
199 | assuming that the user knows what they are doing. This was the old | |
200 | behaviour of the linker. The new default behaviour is to reject such | |
201 | input files. */ | |
202 | bfd_boolean accept_unknown_input_arch; | |
203 | ||
35835446 JR |
204 | /* If TRUE reduce memory overheads, at the expense of speed. |
205 | This will cause map file generation to use an O(N^2) algorithm. */ | |
206 | bfd_boolean reduce_memory_overheads; | |
207 | ||
252b5132 RH |
208 | } args_type; |
209 | ||
210 | extern args_type command_line; | |
211 | ||
212 | typedef int token_code_type; | |
213 | ||
89cdebba | 214 | typedef struct { |
252b5132 | 215 | bfd_size_type specified_data_size; |
b34976b6 AM |
216 | bfd_boolean magic_demand_paged; |
217 | bfd_boolean make_executable; | |
252b5132 | 218 | |
b34976b6 AM |
219 | /* If TRUE, doing a dynamic link. */ |
220 | bfd_boolean dynamic_link; | |
252b5132 | 221 | |
b34976b6 | 222 | /* If TRUE, -shared is supported. */ |
252b5132 RH |
223 | /* ??? A better way to do this is perhaps to define this in the |
224 | ld_emulation_xfer_struct since this is really a target dependent | |
225 | parameter. */ | |
b34976b6 | 226 | bfd_boolean has_shared; |
252b5132 | 227 | |
b34976b6 AM |
228 | /* If TRUE, build constructors. */ |
229 | bfd_boolean build_constructors; | |
252b5132 | 230 | |
b34976b6 AM |
231 | /* If TRUE, warn about any constructors. */ |
232 | bfd_boolean warn_constructors; | |
252b5132 | 233 | |
b34976b6 AM |
234 | /* If TRUE, warn about merging common symbols with others. */ |
235 | bfd_boolean warn_common; | |
252b5132 | 236 | |
b34976b6 AM |
237 | /* If TRUE, only warn once about a particular undefined symbol. */ |
238 | bfd_boolean warn_once; | |
252b5132 | 239 | |
b34976b6 | 240 | /* If TRUE, warn if multiple global-pointers are needed (Alpha |
252b5132 | 241 | only). */ |
b34976b6 | 242 | bfd_boolean warn_multiple_gp; |
252b5132 | 243 | |
b34976b6 | 244 | /* If TRUE, warn if the starting address of an output section |
252b5132 | 245 | changes due to the alignment of an input section. */ |
b34976b6 | 246 | bfd_boolean warn_section_align; |
252b5132 | 247 | |
b34976b6 AM |
248 | /* If TRUE, warning messages are fatal */ |
249 | bfd_boolean fatal_warnings; | |
7ce691ae | 250 | |
b34976b6 | 251 | bfd_boolean sort_common; |
252b5132 | 252 | |
b34976b6 | 253 | bfd_boolean text_read_only; |
252b5132 RH |
254 | |
255 | char *map_filename; | |
256 | FILE *map_file; | |
257 | ||
b34976b6 | 258 | bfd_boolean stats; |
252b5132 | 259 | |
a854a4a7 AM |
260 | /* If set, orphan input sections will be mapped to separate output |
261 | sections. */ | |
b34976b6 | 262 | bfd_boolean unique_orphan_sections; |
a854a4a7 AM |
263 | |
264 | unsigned int split_by_reloc; | |
265 | bfd_size_type split_by_file; | |
361b220e CD |
266 | |
267 | /* If set, only search library directories explicitly selected | |
268 | on the command line. */ | |
b34976b6 | 269 | bfd_boolean only_cmd_line_lib_dirs; |
2d643429 NC |
270 | |
271 | /* The size of the hash table to use. */ | |
272 | bfd_size_type hash_table_size; | |
24718e3b L |
273 | |
274 | /* The maximum page size for ELF. */ | |
275 | bfd_vma maxpagesize; | |
276 | ||
277 | /* The common page size for ELF. */ | |
278 | bfd_vma commonpagesize; | |
252b5132 RH |
279 | } ld_config_type; |
280 | ||
281 | extern ld_config_type config; | |
282 | ||
b9a8de1e | 283 | extern FILE * saved_script_handle; |
b34976b6 | 284 | extern bfd_boolean force_make_executable; |
252b5132 RH |
285 | |
286 | /* Non-zero if we are processing a --defsym from the command line. */ | |
287 | extern int parsing_defsym; | |
288 | ||
1579bae1 AM |
289 | extern int yyparse (void); |
290 | extern void add_cref (const char *, bfd *, asection *, bfd_vma); | |
291 | extern void output_cref (FILE *); | |
292 | extern void check_nocrossrefs (void); | |
293 | extern void ld_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; | |
45455cdd | 294 | |
a1934524 AM |
295 | /* If gcc >= 2.6, we can give a function name, too. */ |
296 | #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) | |
1579bae1 | 297 | #define __PRETTY_FUNCTION__ NULL |
45455cdd ILT |
298 | #endif |
299 | ||
300 | #undef abort | |
301 | #define abort() ld_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) | |
302 | ||
252b5132 | 303 | #endif |