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 | |
27 | # include <locale.h> | |
28 | #endif | |
29 | ||
30 | #ifdef ENABLE_NLS | |
31 | # include <libintl.h> | |
32 | # define _(String) gettext (String) | |
33 | # ifdef gettext_noop | |
34 | # define N_(String) gettext_noop (String) | |
35 | # else | |
36 | # define N_(String) (String) | |
37 | # endif | |
38 | #else | |
897083bd AM |
39 | # define gettext(Msgid) (Msgid) |
40 | # define dgettext(Domainname, Msgid) (Msgid) | |
41 | # define dcgettext(Domainname, Msgid, Category) (Msgid) | |
42 | # define textdomain(Domainname) while (0) /* nothing */ | |
43 | # define bindtextdomain(Domainname, Dirname) while (0) /* nothing */ | |
252b5132 RH |
44 | # define _(String) (String) |
45 | # define N_(String) (String) | |
46 | #endif | |
47 | ||
c20f4f8c AM |
48 | #include "bin-bugs.h" |
49 | ||
252b5132 RH |
50 | /* Look in this environment name for the linker to pretend to be */ |
51 | #define EMULATION_ENVIRON "LDEMULATION" | |
52 | /* If in there look for the strings: */ | |
53 | ||
54 | /* Look in this variable for a target format */ | |
55 | #define TARGET_ENVIRON "GNUTARGET" | |
56 | ||
57 | /* Input sections which are put in a section of this name are actually | |
58 | discarded. */ | |
59 | #define DISCARD_SECTION_NAME "/DISCARD/" | |
60 | ||
18625d54 | 61 | /* A file name list */ |
89cdebba KH |
62 | typedef struct name_list { |
63 | const char *name; | |
64 | struct name_list *next; | |
65 | } | |
66 | name_list; | |
18625d54 | 67 | |
bcaa7b3e L |
68 | /* A wildcard specification. */ |
69 | ||
70 | typedef enum { | |
71 | none, by_name, by_alignment, by_name_alignment, by_alignment_name | |
72 | } sort_type; | |
73 | ||
74 | extern sort_type sort_section; | |
252b5132 | 75 | |
89cdebba | 76 | struct wildcard_spec { |
252b5132 | 77 | const char *name; |
18625d54 | 78 | struct name_list *exclude_name_list; |
bcaa7b3e | 79 | sort_type sorted; |
252b5132 RH |
80 | }; |
81 | ||
b6bf44ba AM |
82 | struct wildcard_list { |
83 | struct wildcard_list *next; | |
84 | struct wildcard_spec spec; | |
85 | }; | |
86 | ||
35835446 JR |
87 | struct map_symbol_def { |
88 | struct bfd_link_hash_entry *entry; | |
89 | struct map_symbol_def *next; | |
90 | }; | |
91 | ||
35835446 JR |
92 | /* The initial part of fat_user_section_struct has to be idential with |
93 | lean_user_section_struct. */ | |
94 | typedef struct fat_user_section_struct { | |
35835446 JR |
95 | /* For input sections, when writing a map file: head / tail of a linked |
96 | list of hash table entries for symbols defined in this section. */ | |
97 | struct map_symbol_def *map_symbol_def_head; | |
98 | struct map_symbol_def **map_symbol_def_tail; | |
99 | } fat_section_userdata_type; | |
100 | ||
252b5132 RH |
101 | #define get_userdata(x) ((x)->userdata) |
102 | ||
103 | #define BYTE_SIZE (1) | |
104 | #define SHORT_SIZE (2) | |
105 | #define LONG_SIZE (4) | |
106 | #define QUAD_SIZE (8) | |
107 | ||
89cdebba | 108 | typedef struct { |
252b5132 | 109 | /* 1 => assign space to common symbols even if `relocatable_output'. */ |
b34976b6 | 110 | bfd_boolean force_common_definition; |
4818e05f | 111 | |
b7a26f91 | 112 | /* 1 => do not assign addresses to common symbols. */ |
b34976b6 AM |
113 | bfd_boolean inhibit_common_definition; |
114 | bfd_boolean relax; | |
252b5132 RH |
115 | |
116 | /* Name of runtime interpreter to invoke. */ | |
117 | char *interpreter; | |
118 | ||
119 | /* Name to give runtime libary from the -soname argument. */ | |
120 | char *soname; | |
121 | ||
122 | /* Runtime library search path from the -rpath argument. */ | |
123 | char *rpath; | |
124 | ||
125 | /* Link time runtime library search path from the -rpath-link | |
126 | argument. */ | |
127 | char *rpath_link; | |
128 | ||
129 | /* Big or little endian as set on command line. */ | |
130 | enum { ENDIAN_UNSET = 0, ENDIAN_BIG, ENDIAN_LITTLE } endian; | |
131 | ||
b34976b6 | 132 | /* If TRUE, build MIPS embedded PIC relocation tables in the output |
252b5132 | 133 | file. */ |
b34976b6 | 134 | bfd_boolean embedded_relocs; |
252b5132 | 135 | |
b34976b6 AM |
136 | /* If TRUE, force generation of a file with a .exe file. */ |
137 | bfd_boolean force_exe_suffix; | |
252b5132 | 138 | |
b34976b6 AM |
139 | /* If TRUE, generate a cross reference report. */ |
140 | bfd_boolean cref; | |
252b5132 | 141 | |
b34976b6 | 142 | /* If TRUE (which is the default), warn about mismatched input |
252b5132 | 143 | files. */ |
b34976b6 | 144 | bfd_boolean warn_mismatch; |
252b5132 | 145 | |
252b5132 RH |
146 | /* Name of shared object whose symbol table should be filtered with |
147 | this shared object. From the --filter option. */ | |
148 | char *filter_shlib; | |
149 | ||
150 | /* Name of shared object for whose symbol table this shared object | |
151 | is an auxiliary filter. From the --auxiliary option. */ | |
152 | char **auxiliary_filters; | |
153 | ||
154 | /* A version symbol to be applied to the symbol names found in the | |
155 | .exports sections. */ | |
156 | char *version_exports_section; | |
157 | ||
b34976b6 | 158 | /* If TRUE (the default) check section addresses, once compute, |
252b5132 | 159 | fpor overlaps. */ |
b34976b6 | 160 | bfd_boolean check_section_addresses; |
5cc18311 | 161 | |
312b768e NC |
162 | /* If TRUE allow the linking of input files in an unknown architecture |
163 | assuming that the user knows what they are doing. This was the old | |
164 | behaviour of the linker. The new default behaviour is to reject such | |
165 | input files. */ | |
166 | bfd_boolean accept_unknown_input_arch; | |
167 | ||
35835446 JR |
168 | /* If TRUE reduce memory overheads, at the expense of speed. |
169 | This will cause map file generation to use an O(N^2) algorithm. */ | |
170 | bfd_boolean reduce_memory_overheads; | |
171 | ||
252b5132 RH |
172 | } args_type; |
173 | ||
174 | extern args_type command_line; | |
175 | ||
176 | typedef int token_code_type; | |
177 | ||
89cdebba | 178 | typedef struct { |
252b5132 | 179 | bfd_size_type specified_data_size; |
b34976b6 AM |
180 | bfd_boolean magic_demand_paged; |
181 | bfd_boolean make_executable; | |
252b5132 | 182 | |
b34976b6 AM |
183 | /* If TRUE, doing a dynamic link. */ |
184 | bfd_boolean dynamic_link; | |
252b5132 | 185 | |
b34976b6 | 186 | /* If TRUE, -shared is supported. */ |
252b5132 RH |
187 | /* ??? A better way to do this is perhaps to define this in the |
188 | ld_emulation_xfer_struct since this is really a target dependent | |
189 | parameter. */ | |
b34976b6 | 190 | bfd_boolean has_shared; |
252b5132 | 191 | |
b34976b6 AM |
192 | /* If TRUE, build constructors. */ |
193 | bfd_boolean build_constructors; | |
252b5132 | 194 | |
b34976b6 AM |
195 | /* If TRUE, warn about any constructors. */ |
196 | bfd_boolean warn_constructors; | |
252b5132 | 197 | |
b34976b6 AM |
198 | /* If TRUE, warn about merging common symbols with others. */ |
199 | bfd_boolean warn_common; | |
252b5132 | 200 | |
b34976b6 AM |
201 | /* If TRUE, only warn once about a particular undefined symbol. */ |
202 | bfd_boolean warn_once; | |
252b5132 | 203 | |
b34976b6 | 204 | /* If TRUE, warn if multiple global-pointers are needed (Alpha |
252b5132 | 205 | only). */ |
b34976b6 | 206 | bfd_boolean warn_multiple_gp; |
252b5132 | 207 | |
b34976b6 | 208 | /* If TRUE, warn if the starting address of an output section |
252b5132 | 209 | changes due to the alignment of an input section. */ |
b34976b6 | 210 | bfd_boolean warn_section_align; |
252b5132 | 211 | |
b34976b6 AM |
212 | /* If TRUE, warning messages are fatal */ |
213 | bfd_boolean fatal_warnings; | |
7ce691ae | 214 | |
b34976b6 | 215 | bfd_boolean sort_common; |
252b5132 | 216 | |
b34976b6 | 217 | bfd_boolean text_read_only; |
252b5132 RH |
218 | |
219 | char *map_filename; | |
220 | FILE *map_file; | |
221 | ||
b34976b6 | 222 | bfd_boolean stats; |
252b5132 | 223 | |
a854a4a7 AM |
224 | /* If set, orphan input sections will be mapped to separate output |
225 | sections. */ | |
b34976b6 | 226 | bfd_boolean unique_orphan_sections; |
a854a4a7 AM |
227 | |
228 | unsigned int split_by_reloc; | |
229 | bfd_size_type split_by_file; | |
361b220e CD |
230 | |
231 | /* If set, only search library directories explicitly selected | |
232 | on the command line. */ | |
b34976b6 | 233 | bfd_boolean only_cmd_line_lib_dirs; |
2d643429 NC |
234 | |
235 | /* The size of the hash table to use. */ | |
236 | bfd_size_type hash_table_size; | |
252b5132 RH |
237 | } ld_config_type; |
238 | ||
239 | extern ld_config_type config; | |
240 | ||
89cdebba | 241 | typedef enum { |
252b5132 RH |
242 | lang_first_phase_enum, |
243 | lang_allocating_phase_enum, | |
244 | lang_final_phase_enum | |
245 | } lang_phase_type; | |
246 | ||
b9a8de1e | 247 | extern FILE * saved_script_handle; |
b34976b6 | 248 | extern bfd_boolean force_make_executable; |
252b5132 RH |
249 | |
250 | /* Non-zero if we are processing a --defsym from the command line. */ | |
251 | extern int parsing_defsym; | |
252 | ||
1579bae1 AM |
253 | extern int yyparse (void); |
254 | extern void add_cref (const char *, bfd *, asection *, bfd_vma); | |
255 | extern void output_cref (FILE *); | |
256 | extern void check_nocrossrefs (void); | |
257 | extern void ld_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; | |
45455cdd | 258 | |
a1934524 AM |
259 | /* If gcc >= 2.6, we can give a function name, too. */ |
260 | #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) | |
1579bae1 | 261 | #define __PRETTY_FUNCTION__ NULL |
45455cdd ILT |
262 | #endif |
263 | ||
264 | #undef abort | |
265 | #define abort() ld_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) | |
266 | ||
252b5132 | 267 | #endif |