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2a9fa50c | 1 | /* Copyright (C) 1991, 92, 93, 94 Free Software Foundation, Inc. |
2fa0b342 DHW |
2 | |
3 | This file is part of GLD, the Gnu Linker. | |
4 | ||
5 | GLD is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 1, or (at your option) | |
8 | any later version. | |
9 | ||
10 | GLD is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with GLD; see the file COPYING. If not, write to | |
17 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
18 | ||
2fa0b342 DHW |
19 | /* |
20 | ldfile.c | |
21 | ||
22 | look after all the file stuff | |
23 | ||
24 | */ | |
25 | ||
2fa0b342 | 26 | #include "bfd.h" |
cffdcde9 | 27 | #include "sysdep.h" |
fcf276c4 | 28 | #include "ld.h" |
2fa0b342 | 29 | #include "ldmisc.h" |
fcf276c4 | 30 | #include "ldexp.h" |
2fa0b342 DHW |
31 | #include "ldlang.h" |
32 | #include "ldfile.h" | |
fcf276c4 | 33 | #include "ldmain.h" |
2a9fa50c | 34 | #include "ldgram.h" |
fcf276c4 ILT |
35 | #include "ldlex.h" |
36 | ||
cffdcde9 | 37 | #include <ctype.h> |
fcf276c4 | 38 | |
2fa0b342 | 39 | char *ldfile_input_filename; |
b5b2c886 | 40 | const char *ldfile_output_machine_name = ""; |
2fa0b342 DHW |
41 | unsigned long ldfile_output_machine; |
42 | enum bfd_architecture ldfile_output_architecture; | |
2fa0b342 | 43 | |
b5b2c886 SS |
44 | /* start-sanitize-mpw */ |
45 | #ifndef MPW | |
46 | /* end-sanitize-mpw */ | |
cffdcde9 DM |
47 | #ifdef VMS |
48 | char *slash = ""; | |
49 | #else | |
50 | char *slash = "/"; | |
51 | #endif | |
b5b2c886 SS |
52 | /* start-sanitize-mpw */ |
53 | #else /* MPW */ | |
54 | /* The MPW path char is a colon. */ | |
55 | char *slash = ":"; | |
56 | #endif /* MPW */ | |
57 | /* end-sanitize-mpw */ | |
cffdcde9 | 58 | |
2fa0b342 DHW |
59 | |
60 | ||
61 | ||
cffdcde9 DM |
62 | /* LOCAL */ |
63 | typedef struct search_dirs | |
2fa0b342 DHW |
64 | { |
65 | char *name; | |
cffdcde9 | 66 | struct search_dirs *next; |
2fa0b342 DHW |
67 | } search_dirs_type; |
68 | ||
69 | static search_dirs_type *search_head; | |
70 | static search_dirs_type **search_tail_ptr = &search_head; | |
71 | ||
cffdcde9 | 72 | typedef struct search_arch |
2fa0b342 DHW |
73 | { |
74 | char *name; | |
cffdcde9 | 75 | struct search_arch *next; |
2fa0b342 DHW |
76 | } search_arch_type; |
77 | ||
78 | static search_arch_type *search_arch_head; | |
79 | static search_arch_type **search_arch_tail_ptr = &search_arch_head; | |
80 | ||
b5b2c886 SS |
81 | static bfd *cached_bfd_openr PARAMS ((const char *attempt, |
82 | lang_input_statement_type *entry)); | |
83 | static bfd *open_a PARAMS ((char *arch, lang_input_statement_type *entry, | |
84 | char *lib, char *suffix)); | |
85 | static FILE *try_open PARAMS ((char *name, char *exten)); | |
1418c83b | 86 | |
2fa0b342 DHW |
87 | void |
88 | ldfile_add_library_path(name) | |
89 | char *name; | |
90 | { | |
91 | search_dirs_type *new = | |
2a9fa50c | 92 | (search_dirs_type *)xmalloc((bfd_size_type)(sizeof(search_dirs_type))); |
2fa0b342 DHW |
93 | new->name = name; |
94 | new->next = (search_dirs_type*)NULL; | |
95 | *search_tail_ptr = new; | |
96 | search_tail_ptr = &new->next; | |
97 | } | |
98 | ||
99 | ||
b5b2c886 | 100 | static bfd * |
2fa0b342 | 101 | cached_bfd_openr(attempt,entry) |
b5b2c886 SS |
102 | const char *attempt; |
103 | lang_input_statement_type *entry; | |
2fa0b342 DHW |
104 | { |
105 | entry->the_bfd = bfd_openr(attempt, entry->target); | |
bbd2521f | 106 | if (trace_file_tries == true ) { |
fcf276c4 | 107 | info_msg ("attempt to open %s %s\n", attempt, |
99fe4553 | 108 | (entry->the_bfd == (bfd *)NULL) ? "failed" : "succeeded" ); |
1418c83b | 109 | } |
2fa0b342 DHW |
110 | return entry->the_bfd; |
111 | } | |
112 | ||
113 | static bfd * | |
114 | open_a(arch, entry, lib, suffix) | |
b5b2c886 SS |
115 | char *arch; |
116 | lang_input_statement_type *entry; | |
117 | char *lib; | |
118 | char *suffix; | |
2fa0b342 DHW |
119 | { |
120 | bfd*desc; | |
121 | search_dirs_type *search ; | |
122 | for (search = search_head; | |
123 | search != (search_dirs_type *)NULL; | |
124 | search = search->next) | |
125 | { | |
126 | char buffer[1000]; | |
127 | char *string; | |
128 | if (entry->is_archive == true) { | |
129 | sprintf(buffer, | |
cffdcde9 | 130 | "%s%s%s%s%s%s", |
2fa0b342 | 131 | search->name, |
cffdcde9 | 132 | slash, |
2fa0b342 DHW |
133 | lib, |
134 | entry->filename, arch, suffix); | |
135 | } | |
136 | else { | |
1418c83b SC |
137 | if (entry->filename[0] == '/' || entry->filename[0] == '.') { |
138 | strcpy(buffer, entry->filename); | |
139 | } else { | |
cffdcde9 | 140 | sprintf(buffer,"%s%s%s",search->name, slash, entry->filename); |
1418c83b | 141 | } |
2fa0b342 DHW |
142 | } |
143 | string = buystring(buffer); | |
144 | desc = cached_bfd_openr (string, entry); | |
145 | if (desc) | |
146 | { | |
147 | entry->filename = string; | |
2fa0b342 DHW |
148 | entry->the_bfd = desc; |
149 | return desc; | |
150 | } | |
151 | free(string); | |
152 | } | |
153 | return (bfd *)NULL; | |
154 | } | |
155 | ||
156 | /* Open the input file specified by 'entry', and return a descriptor. | |
157 | The open file is remembered; if the same file is opened twice in a row, | |
158 | a new open is not actually done. */ | |
159 | ||
160 | void | |
161 | ldfile_open_file (entry) | |
2a9fa50c | 162 | lang_input_statement_type *entry; |
2fa0b342 | 163 | { |
210c52ac | 164 | ASSERT (entry->the_bfd == NULL); |
2fa0b342 | 165 | |
2a9fa50c ILT |
166 | if (! entry->search_dirs_flag) |
167 | entry->the_bfd = cached_bfd_openr (entry->filename, entry); | |
168 | else | |
2fa0b342 DHW |
169 | { |
170 | search_arch_type *arch; | |
2a9fa50c | 171 | |
1418c83b | 172 | /* Try to open <filename><suffix> or lib<filename><suffix>.a */ |
2fa0b342 | 173 | for (arch = search_arch_head; |
2a9fa50c ILT |
174 | arch != (search_arch_type *) NULL; |
175 | arch = arch->next) | |
176 | { | |
177 | if (config.dynamic_link) | |
178 | { | |
179 | /* FIXME: Perhaps we will sometimes want something other | |
180 | than .so. */ | |
181 | if (open_a (arch->name, entry, "lib", ".so") != (bfd *) NULL) | |
182 | return; | |
183 | } | |
184 | if (open_a (arch->name, entry, "lib", ".a") != (bfd *) NULL) | |
185 | return; | |
cffdcde9 | 186 | #ifdef VMS |
2a9fa50c ILT |
187 | if (open_a (arch->name, entry, ":lib", ".a") != (bfd *) NULL) |
188 | return; | |
cffdcde9 | 189 | #endif |
2a9fa50c | 190 | } |
2fa0b342 | 191 | } |
2fa0b342 | 192 | |
2a9fa50c | 193 | if (entry->the_bfd == NULL) |
bbd2521f | 194 | einfo("%F%P: cannot open %s: %E\n", entry->local_sym_name); |
2fa0b342 DHW |
195 | } |
196 | ||
cffdcde9 | 197 | /* Try to open NAME; if that fails, try NAME with EXTEN appended to it. */ |
2fa0b342 DHW |
198 | |
199 | static FILE * | |
200 | try_open(name, exten) | |
b5b2c886 SS |
201 | char *name; |
202 | char *exten; | |
2fa0b342 DHW |
203 | { |
204 | FILE *result; | |
205 | char buff[1000]; | |
cffdcde9 | 206 | |
2fa0b342 | 207 | result = fopen(name, "r"); |
bbd2521f | 208 | if (trace_file_tries == true) { |
1418c83b | 209 | if (result == (FILE *)NULL) { |
fcf276c4 | 210 | info_msg ("cannot find "); |
1418c83b | 211 | } |
fcf276c4 | 212 | info_msg ("%s\n",name); |
cffdcde9 DM |
213 | } |
214 | if (result != (FILE *)NULL) { | |
2fa0b342 DHW |
215 | return result; |
216 | } | |
2fa0b342 | 217 | |
cffdcde9 DM |
218 | if (*exten) { |
219 | sprintf(buff, "%s%s", name, exten); | |
220 | result = fopen(buff, "r"); | |
bbd2521f | 221 | if (trace_file_tries == true) { |
cffdcde9 | 222 | if (result == (FILE *)NULL) { |
fcf276c4 | 223 | info_msg ("cannot find "); |
cffdcde9 | 224 | } |
fcf276c4 | 225 | info_msg ("%s\n", buff); |
1418c83b | 226 | } |
2fa0b342 DHW |
227 | } |
228 | return result; | |
229 | } | |
cffdcde9 DM |
230 | |
231 | /* Try to open NAME; if that fails, look for it in any directories | |
232 | specified with -L, without and with EXTEND apppended. */ | |
233 | ||
fcf276c4 ILT |
234 | FILE * |
235 | ldfile_find_command_file(name, extend) | |
2fa0b342 DHW |
236 | char *name; |
237 | char *extend; | |
238 | { | |
239 | search_dirs_type *search; | |
240 | FILE *result; | |
241 | char buffer[1000]; | |
cffdcde9 | 242 | |
2fa0b342 DHW |
243 | /* First try raw name */ |
244 | result = try_open(name,""); | |
245 | if (result == (FILE *)NULL) { | |
246 | /* Try now prefixes */ | |
247 | for (search = search_head; | |
248 | search != (search_dirs_type *)NULL; | |
249 | search = search->next) { | |
250 | sprintf(buffer,"%s/%s", search->name, name); | |
251 | result = try_open(buffer, extend); | |
252 | if (result)break; | |
253 | } | |
254 | } | |
255 | return result; | |
256 | } | |
257 | ||
cffdcde9 DM |
258 | void |
259 | ldfile_open_command_file(name) | |
2fa0b342 DHW |
260 | char *name; |
261 | { | |
cffdcde9 | 262 | FILE *ldlex_input_stack; |
fcf276c4 | 263 | ldlex_input_stack = ldfile_find_command_file(name, ""); |
2fa0b342 DHW |
264 | |
265 | if (ldlex_input_stack == (FILE *)NULL) { | |
2a9fa50c | 266 | bfd_set_error (bfd_error_system_call); |
fcf276c4 | 267 | einfo("%P%F: cannot open linker script file %s: %E\n",name); |
2fa0b342 | 268 | } |
cffdcde9 DM |
269 | lex_push_file(ldlex_input_stack, name); |
270 | ||
2fa0b342 DHW |
271 | ldfile_input_filename = name; |
272 | had_script = true; | |
273 | } | |
274 | ||
275 | ||
276 | ||
277 | ||
99fe4553 SC |
278 | |
279 | #ifdef GNU960 | |
280 | static | |
281 | char * | |
282 | gnu960_map_archname( name ) | |
283 | char *name; | |
284 | { | |
285 | struct tabentry { char *cmd_switch; char *arch; }; | |
286 | static struct tabentry arch_tab[] = { | |
287 | "", "", | |
288 | "KA", "ka", | |
289 | "KB", "kb", | |
290 | "KC", "mc", /* Synonym for MC */ | |
291 | "MC", "mc", | |
292 | "CA", "ca", | |
293 | "SA", "ka", /* Functionally equivalent to KA */ | |
294 | "SB", "kb", /* Functionally equivalent to KB */ | |
295 | NULL, "" | |
296 | }; | |
297 | struct tabentry *tp; | |
298 | ||
299 | ||
300 | for ( tp = arch_tab; tp->cmd_switch != NULL; tp++ ){ | |
301 | if ( !strcmp(name,tp->cmd_switch) ){ | |
302 | break; | |
303 | } | |
304 | } | |
305 | ||
306 | if ( tp->cmd_switch == NULL ){ | |
cffdcde9 | 307 | einfo("%P%F: unknown architecture: %s\n",name); |
99fe4553 SC |
308 | } |
309 | return tp->arch; | |
310 | } | |
311 | ||
312 | ||
313 | ||
314 | void | |
315 | ldfile_add_arch(name) | |
316 | char *name; | |
317 | { | |
318 | search_arch_type *new = | |
2a9fa50c | 319 | (search_arch_type *)xmalloc((bfd_size_type)(sizeof(search_arch_type))); |
99fe4553 SC |
320 | |
321 | ||
322 | if (*name != '\0') { | |
323 | if (ldfile_output_machine_name[0] != '\0') { | |
cffdcde9 | 324 | einfo("%P%F: target architecture respecified\n"); |
99fe4553 SC |
325 | return; |
326 | } | |
327 | ldfile_output_machine_name = name; | |
328 | } | |
329 | ||
330 | new->next = (search_arch_type*)NULL; | |
331 | new->name = gnu960_map_archname( name ); | |
332 | *search_arch_tail_ptr = new; | |
333 | search_arch_tail_ptr = &new->next; | |
334 | ||
335 | } | |
336 | ||
337 | #else /* not GNU960 */ | |
338 | ||
339 | ||
2fa0b342 | 340 | void |
cffdcde9 DM |
341 | ldfile_add_arch (in_name) |
342 | CONST char * in_name; | |
2fa0b342 | 343 | { |
1418c83b | 344 | char *name = buystring(in_name); |
2fa0b342 | 345 | search_arch_type *new = |
2a9fa50c | 346 | (search_arch_type *)xmalloc((bfd_size_type)(sizeof(search_arch_type))); |
1418c83b SC |
347 | |
348 | ldfile_output_machine_name = in_name; | |
2fa0b342 DHW |
349 | |
350 | new->name = name; | |
351 | new->next = (search_arch_type*)NULL; | |
352 | while (*name) { | |
353 | if (isupper(*name)) *name = tolower(*name); | |
354 | name++; | |
355 | } | |
356 | *search_arch_tail_ptr = new; | |
357 | search_arch_tail_ptr = &new->next; | |
358 | ||
359 | } | |
99fe4553 | 360 | #endif |
a37cc0c0 SC |
361 | |
362 | /* Set the output architecture */ | |
363 | void | |
cffdcde9 DM |
364 | ldfile_set_output_arch (string) |
365 | CONST char *string; | |
a37cc0c0 | 366 | { |
cffdcde9 DM |
367 | bfd_arch_info_type *arch = bfd_scan_arch(string); |
368 | ||
369 | if (arch) { | |
370 | ldfile_output_architecture = arch->arch; | |
371 | ldfile_output_machine = arch->mach; | |
372 | ldfile_output_machine_name = arch->printable_name; | |
a37cc0c0 SC |
373 | } |
374 | else { | |
fcf276c4 | 375 | einfo("%P%F: cannot represent machine `%s'\n", string); |
a37cc0c0 SC |
376 | } |
377 | } |