1 /* Copyright (C) 1991, 92, 93, 94 Free Software Foundation, Inc.
3 This file is part of GLD, the Gnu Linker.
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)
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.
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. */
22 look after all the file stuff
39 char *ldfile_input_filename;
40 const char *ldfile_output_machine_name = "";
41 unsigned long ldfile_output_machine;
42 enum bfd_architecture ldfile_output_architecture;
43 search_dirs_type *search_head;
45 /* start-sanitize-mpw */
47 /* end-sanitize-mpw */
53 /* start-sanitize-mpw */
55 /* The MPW path char is a colon. */
58 /* end-sanitize-mpw */
62 static search_dirs_type **search_tail_ptr = &search_head;
64 typedef struct search_arch
67 struct search_arch *next;
70 static search_arch_type *search_arch_head;
71 static search_arch_type **search_arch_tail_ptr = &search_arch_head;
73 static bfd *cached_bfd_openr PARAMS ((const char *attempt,
74 lang_input_statement_type *entry));
75 static bfd *open_a PARAMS ((char *arch, lang_input_statement_type *entry,
76 char *lib, char *suffix));
77 static FILE *try_open PARAMS ((char *name, char *exten));
80 ldfile_add_library_path (name, cmdline)
84 search_dirs_type *new;
86 new = (search_dirs_type *) xmalloc (sizeof (search_dirs_type));
89 new->cmdline = cmdline;
90 *search_tail_ptr = new;
91 search_tail_ptr = &new->next;
96 cached_bfd_openr(attempt,entry)
98 lang_input_statement_type *entry;
100 entry->the_bfd = bfd_openr(attempt, entry->target);
101 if (trace_file_tries == true ) {
102 info_msg ("attempt to open %s %s\n", attempt,
103 (entry->the_bfd == (bfd *)NULL) ? "failed" : "succeeded" );
105 return entry->the_bfd;
109 open_a(arch, entry, lib, suffix)
111 lang_input_statement_type *entry;
116 search_dirs_type *search ;
118 /* If this is not an archive, try to open it in the current
120 if (! entry->is_archive)
122 desc = cached_bfd_openr (entry->filename, entry);
127 for (search = search_head;
128 search != (search_dirs_type *)NULL;
129 search = search->next)
133 if (entry->is_archive == true) {
139 entry->filename, arch, suffix);
142 if (entry->filename[0] == '/' || entry->filename[0] == '.') {
143 strcpy(buffer, entry->filename);
145 sprintf(buffer,"%s%s%s",search->name, slash, entry->filename);
148 string = buystring(buffer);
149 desc = cached_bfd_openr (string, entry);
152 entry->filename = string;
153 entry->the_bfd = desc;
161 /* Open the input file specified by 'entry', and return a descriptor.
162 The open file is remembered; if the same file is opened twice in a row,
163 a new open is not actually done. */
166 ldfile_open_file (entry)
167 lang_input_statement_type *entry;
169 ASSERT (entry->the_bfd == NULL);
171 if (! entry->search_dirs_flag)
172 entry->the_bfd = cached_bfd_openr (entry->filename, entry);
175 search_arch_type *arch;
177 /* Try to open <filename><suffix> or lib<filename><suffix>.a */
178 for (arch = search_arch_head;
179 arch != (search_arch_type *) NULL;
182 if (config.dynamic_link)
184 /* FIXME: Perhaps we will sometimes want something other
186 if (open_a (arch->name, entry, "lib", ".so") != (bfd *) NULL)
189 if (open_a (arch->name, entry, "lib", ".a") != (bfd *) NULL)
192 if (open_a (arch->name, entry, ":lib", ".a") != (bfd *) NULL)
198 if (entry->the_bfd == NULL)
199 einfo("%F%P: cannot open %s: %E\n", entry->local_sym_name);
202 /* Try to open NAME; if that fails, try NAME with EXTEN appended to it. */
205 try_open(name, exten)
212 result = fopen(name, "r");
213 if (trace_file_tries == true) {
214 if (result == (FILE *)NULL) {
215 info_msg ("cannot find ");
217 info_msg ("%s\n",name);
219 if (result != (FILE *)NULL) {
224 sprintf(buff, "%s%s", name, exten);
225 result = fopen(buff, "r");
226 if (trace_file_tries == true) {
227 if (result == (FILE *)NULL) {
228 info_msg ("cannot find ");
230 info_msg ("%s\n", buff);
236 /* Try to open NAME; if that fails, look for it in any directories
237 specified with -L, without and with EXTEND apppended. */
240 ldfile_find_command_file(name, extend)
244 search_dirs_type *search;
248 /* First try raw name */
249 result = try_open(name,"");
250 if (result == (FILE *)NULL) {
251 /* Try now prefixes */
252 for (search = search_head;
253 search != (search_dirs_type *)NULL;
254 search = search->next) {
255 sprintf(buffer,"%s/%s", search->name, name);
256 result = try_open(buffer, extend);
264 ldfile_open_command_file(name)
267 FILE *ldlex_input_stack;
268 ldlex_input_stack = ldfile_find_command_file(name, "");
270 if (ldlex_input_stack == (FILE *)NULL) {
271 bfd_set_error (bfd_error_system_call);
272 einfo("%P%F: cannot open linker script file %s: %E\n",name);
274 lex_push_file(ldlex_input_stack, name);
276 ldfile_input_filename = name;
287 gnu960_map_archname( name )
290 struct tabentry { char *cmd_switch; char *arch; };
291 static struct tabentry arch_tab[] = {
295 "KC", "mc", /* Synonym for MC */
298 "SA", "ka", /* Functionally equivalent to KA */
299 "SB", "kb", /* Functionally equivalent to KB */
305 for ( tp = arch_tab; tp->cmd_switch != NULL; tp++ ){
306 if ( !strcmp(name,tp->cmd_switch) ){
311 if ( tp->cmd_switch == NULL ){
312 einfo("%P%F: unknown architecture: %s\n",name);
320 ldfile_add_arch(name)
323 search_arch_type *new =
324 (search_arch_type *)xmalloc((bfd_size_type)(sizeof(search_arch_type)));
328 if (ldfile_output_machine_name[0] != '\0') {
329 einfo("%P%F: target architecture respecified\n");
332 ldfile_output_machine_name = name;
335 new->next = (search_arch_type*)NULL;
336 new->name = gnu960_map_archname( name );
337 *search_arch_tail_ptr = new;
338 search_arch_tail_ptr = &new->next;
342 #else /* not GNU960 */
346 ldfile_add_arch (in_name)
347 CONST char * in_name;
349 char *name = buystring(in_name);
350 search_arch_type *new =
351 (search_arch_type *)xmalloc((bfd_size_type)(sizeof(search_arch_type)));
353 ldfile_output_machine_name = in_name;
356 new->next = (search_arch_type*)NULL;
358 if (isupper(*name)) *name = tolower(*name);
361 *search_arch_tail_ptr = new;
362 search_arch_tail_ptr = &new->next;
367 /* Set the output architecture */
369 ldfile_set_output_arch (string)
372 bfd_arch_info_type *arch = bfd_scan_arch(string);
375 ldfile_output_architecture = arch->arch;
376 ldfile_output_machine = arch->mach;
377 ldfile_output_machine_name = arch->printable_name;
380 einfo("%P%F: cannot represent machine `%s'\n", string);