Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* ld-emul.h - Linker emulation header file |
82704155 | 2 | Copyright (C) 1991-2019 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 | |
f96b4a7b NC |
14 | GNU General Public License for more details. |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
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 LDEMUL_H | |
22 | #define LDEMUL_H | |
23 | ||
cb9faf63 BE |
24 | /* Forward declaration for ldemul_add_options() and others. */ |
25 | struct option; | |
26 | ||
b34976b6 | 27 | extern void ldemul_hll |
1579bae1 | 28 | (char *); |
b34976b6 | 29 | extern void ldemul_syslib |
1579bae1 | 30 | (char *); |
b34976b6 | 31 | extern void ldemul_after_parse |
1579bae1 | 32 | (void); |
b34976b6 | 33 | extern void ldemul_before_parse |
1579bae1 | 34 | (void); |
b34976b6 | 35 | extern void ldemul_after_open |
1579bae1 | 36 | (void); |
5c3261b0 L |
37 | extern void ldemul_after_check_relocs |
38 | (void); | |
b34976b6 | 39 | extern void ldemul_after_allocation |
1579bae1 | 40 | (void); |
b34976b6 | 41 | extern void ldemul_before_allocation |
1579bae1 | 42 | (void); |
b34976b6 | 43 | extern void ldemul_set_output_arch |
1579bae1 | 44 | (void); |
b34976b6 | 45 | extern char *ldemul_choose_target |
1579bae1 | 46 | (int, char**); |
b34976b6 | 47 | extern void ldemul_choose_mode |
1579bae1 | 48 | (char *); |
b34976b6 | 49 | extern void ldemul_list_emulations |
1579bae1 | 50 | (FILE *); |
b34976b6 | 51 | extern void ldemul_list_emulation_options |
1579bae1 | 52 | (FILE *); |
b34976b6 | 53 | extern char *ldemul_get_script |
1579bae1 | 54 | (int *isfile); |
b34976b6 | 55 | extern void ldemul_finish |
1579bae1 | 56 | (void); |
b34976b6 | 57 | extern void ldemul_set_symbols |
1579bae1 | 58 | (void); |
b34976b6 | 59 | extern void ldemul_create_output_section_statements |
1579bae1 | 60 | (void); |
c2edb4b8 | 61 | extern lang_output_section_statement_type *ldemul_place_orphan |
8a99a385 | 62 | (asection *, const char *, int); |
3bcf5557 | 63 | extern bfd_boolean ldemul_parse_args |
1579bae1 | 64 | (int, char **); |
3bcf5557 | 65 | extern void ldemul_add_options |
1579bae1 | 66 | (int, char **, int, struct option **, int, struct option **); |
3bcf5557 | 67 | extern bfd_boolean ldemul_handle_option |
1579bae1 | 68 | (int); |
b34976b6 | 69 | extern bfd_boolean ldemul_unrecognized_file |
1579bae1 | 70 | (struct lang_input_statement_struct *); |
b34976b6 | 71 | extern bfd_boolean ldemul_recognized_file |
1579bae1 | 72 | (struct lang_input_statement_struct *); |
b34976b6 | 73 | extern bfd_boolean ldemul_open_dynamic_archive |
1579bae1 | 74 | (const char *, struct search_dirs *, struct lang_input_statement_struct *); |
b34976b6 | 75 | extern char *ldemul_default_target |
1579bae1 | 76 | (int, char**); |
b34976b6 | 77 | extern void after_parse_default |
1579bae1 | 78 | (void); |
b34976b6 | 79 | extern void after_open_default |
1579bae1 | 80 | (void); |
5c3261b0 L |
81 | extern void after_check_relocs_default |
82 | (void); | |
b34976b6 | 83 | extern void after_allocation_default |
1579bae1 | 84 | (void); |
b34976b6 | 85 | extern void before_allocation_default |
1579bae1 | 86 | (void); |
046183de | 87 | extern void finish_default |
5e797c2c | 88 | (void); |
1e035701 AM |
89 | extern void finish_default |
90 | (void); | |
b34976b6 | 91 | extern void set_output_arch_default |
1579bae1 | 92 | (void); |
b34976b6 | 93 | extern void syslib_default |
1579bae1 | 94 | (char*); |
b34976b6 | 95 | extern void hll_default |
1579bae1 | 96 | (char*); |
344a211f | 97 | extern int ldemul_find_potential_libraries |
1579bae1 | 98 | (char *, struct lang_input_statement_struct *); |
fac1652d | 99 | extern struct bfd_elf_version_expr *ldemul_new_vers_pattern |
1579bae1 | 100 | (struct bfd_elf_version_expr *); |
7a2f2d82 DD |
101 | extern void ldemul_extra_map_file_text |
102 | (bfd *, struct bfd_link_info *, FILE *); | |
1ff6de03 NA |
103 | /* Return 1 if we are emitting CTF early, and 0 if ldemul_examine_strtab_for_ctf |
104 | will be called by the target. */ | |
105 | extern int ldemul_emit_ctf_early | |
106 | (void); | |
107 | /* Called from per-target code to examine the strtab and symtab. */ | |
108 | extern void ldemul_examine_strtab_for_ctf | |
109 | (struct ctf_file *, struct elf_sym_strtab *, bfd_size_type, | |
110 | struct elf_strtab_hash *); | |
252b5132 | 111 | |
89cdebba | 112 | typedef struct ld_emulation_xfer_struct { |
252b5132 RH |
113 | /* Run before parsing the command line and script file. |
114 | Set the architecture, maybe other things. */ | |
1579bae1 | 115 | void (*before_parse) (void); |
252b5132 RH |
116 | |
117 | /* Handle the SYSLIB (low level library) script command. */ | |
1579bae1 | 118 | void (*syslib) (char *); |
252b5132 RH |
119 | |
120 | /* Handle the HLL (high level library) script command. */ | |
1579bae1 | 121 | void (*hll) (char *); |
252b5132 RH |
122 | |
123 | /* Run after parsing the command line and script file. */ | |
1579bae1 | 124 | void (*after_parse) (void); |
252b5132 RH |
125 | |
126 | /* Run after opening all input files, and loading the symbols. */ | |
1579bae1 | 127 | void (*after_open) (void); |
252b5132 | 128 | |
5c3261b0 L |
129 | /* Run after checking relocations. */ |
130 | void (*after_check_relocs) (void); | |
131 | ||
252b5132 | 132 | /* Run after allocating output sections. */ |
1579bae1 | 133 | void (*after_allocation) (void); |
252b5132 RH |
134 | |
135 | /* Set the output architecture and machine if possible. */ | |
1579bae1 | 136 | void (*set_output_arch) (void); |
252b5132 RH |
137 | |
138 | /* Decide which target name to use. */ | |
1579bae1 | 139 | char * (*choose_target) (int, char**); |
252b5132 RH |
140 | |
141 | /* Run before allocating output sections. */ | |
1579bae1 | 142 | void (*before_allocation) (void); |
252b5132 RH |
143 | |
144 | /* Return the appropriate linker script. */ | |
1579bae1 | 145 | char * (*get_script) (int *isfile); |
252b5132 RH |
146 | |
147 | /* The name of this emulation. */ | |
148 | char *emulation_name; | |
149 | ||
150 | /* The output format. */ | |
151 | char *target_name; | |
152 | ||
153 | /* Run after assigning values from the script. */ | |
1579bae1 | 154 | void (*finish) (void); |
252b5132 RH |
155 | |
156 | /* Create any output sections needed by the target. */ | |
1579bae1 | 157 | void (*create_output_section_statements) (void); |
252b5132 RH |
158 | |
159 | /* Try to open a dynamic library. ARCH is an architecture name, and | |
160 | is normally the empty string. ENTRY is the lang_input_statement | |
161 | that should be opened. */ | |
b34976b6 | 162 | bfd_boolean (*open_dynamic_archive) |
1579bae1 AM |
163 | (const char *arch, struct search_dirs *, |
164 | struct lang_input_statement_struct *entry); | |
252b5132 | 165 | |
b34976b6 | 166 | /* Place an orphan section. Return TRUE if it was placed, FALSE if |
252b5132 RH |
167 | the default action should be taken. This field may be NULL, in |
168 | which case the default action will always be taken. */ | |
c2edb4b8 | 169 | lang_output_section_statement_type *(*place_orphan) |
8a99a385 | 170 | (asection *, const char *, int); |
252b5132 | 171 | |
5cc18311 KH |
172 | /* Run after assigning parsing with the args, but before |
173 | reading the script. Used to initialize symbols used in the script. */ | |
1579bae1 | 174 | void (*set_symbols) (void); |
252b5132 | 175 | |
3bcf5557 | 176 | /* Parse args which the base linker doesn't understand. |
3aa97c58 | 177 | Return TRUE if the arg needs no further processing. */ |
1579bae1 | 178 | bfd_boolean (*parse_args) (int, char **); |
3bcf5557 AM |
179 | |
180 | /* Hook to add options to parameters passed by the base linker to | |
181 | getopt_long and getopt_long_only calls. */ | |
182 | void (*add_options) | |
1579bae1 | 183 | (int, char **, int, struct option **, int, struct option **); |
3bcf5557 AM |
184 | |
185 | /* Companion to the above to handle an option. Returns TRUE if it is | |
186 | one of our options. */ | |
1579bae1 | 187 | bfd_boolean (*handle_option) (int); |
252b5132 RH |
188 | |
189 | /* Run to handle files which are not recognized as object files or | |
b34976b6 AM |
190 | archives. Return TRUE if the file was handled. */ |
191 | bfd_boolean (*unrecognized_file) | |
1579bae1 | 192 | (struct lang_input_statement_struct *); |
252b5132 RH |
193 | |
194 | /* Run to list the command line options which parse_args handles. */ | |
1579bae1 | 195 | void (* list_options) (FILE *); |
252b5132 RH |
196 | |
197 | /* Run to specially handle files which *are* recognized as object | |
b34976b6 AM |
198 | files or archives. Return TRUE if the file was handled. */ |
199 | bfd_boolean (*recognized_file) | |
1579bae1 | 200 | (struct lang_input_statement_struct *); |
252b5132 | 201 | |
344a211f NC |
202 | /* Called when looking for libraries in a directory specified |
203 | via a linker command line option or linker script option. | |
204 | Files that match the pattern "lib*.a" have already been scanned. | |
205 | (For VMS files matching ":lib*.a" have also been scanned). */ | |
206 | int (* find_potential_libraries) | |
1579bae1 | 207 | (char *, struct lang_input_statement_struct *); |
5cc18311 | 208 | |
fac1652d AM |
209 | /* Called when adding a new version pattern. PowerPC64-ELF uses |
210 | this hook to add a pattern matching ".foo" for every "foo". */ | |
211 | struct bfd_elf_version_expr * (*new_vers_pattern) | |
1579bae1 | 212 | (struct bfd_elf_version_expr *); |
fac1652d | 213 | |
7a2f2d82 DD |
214 | /* Called when printing the map file, in case there are |
215 | emulation-specific sections for it. */ | |
216 | void (*extra_map_file_text) | |
217 | (bfd *, struct bfd_link_info *, FILE *); | |
218 | ||
1ff6de03 NA |
219 | /* If this returns true, we emit CTF as early as possible: if false, we emit |
220 | CTF once the strtab and symtab are laid out. */ | |
221 | int (*emit_ctf_early) | |
222 | (void); | |
223 | ||
224 | /* Called to examine the string and symbol table late enough in linking that | |
225 | they are finally laid out. If emit_ctf_early returns true, this is not | |
226 | called and ldemul_maybe_emit_ctf() emits CTF in 'early' mode: otherwise, it | |
227 | waits until 'late'. (Late mode needs explicit support at per-target link | |
228 | time to get called at all). If set, called by ld when the examine_strtab | |
229 | bfd_link_callback is invoked by per-target code. */ | |
230 | void (*examine_strtab_for_ctf) (struct ctf_file *, struct elf_sym_strtab *, | |
231 | bfd_size_type, struct elf_strtab_hash *); | |
252b5132 RH |
232 | } ld_emulation_xfer_type; |
233 | ||
89cdebba | 234 | typedef enum { |
252b5132 | 235 | intel_ic960_ld_mode_enum, |
89cdebba | 236 | default_mode_enum, |
252b5132 RH |
237 | intel_gld960_ld_mode_enum |
238 | } lang_emulation_mode_enum_type; | |
239 | ||
240 | extern ld_emulation_xfer_type *ld_emulations[]; | |
241 | ||
242 | #endif |