2 /* Copyright (C) 1991 Free Software Foundation, Inc.
4 This file is part of GLD, the Gnu Linker.
6 GLD is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 1, or (at your option)
11 GLD is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GLD; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
23 look after all the file stuff
35 char *ldfile_input_filename;
36 CONST char * ldfile_output_machine_name ="";
37 unsigned long ldfile_output_machine;
38 enum bfd_architecture ldfile_output_architecture;
42 extern boolean had_script;
43 extern boolean trace_file_tries;
56 typedef struct search_dirs
59 struct search_dirs *next;
62 static search_dirs_type *search_head;
63 static search_dirs_type **search_tail_ptr = &search_head;
65 typedef struct search_arch
68 struct search_arch *next;
71 static search_arch_type *search_arch_head;
72 static search_arch_type **search_arch_tail_ptr = &search_arch_head;
77 ldfile_add_library_path(name)
80 search_dirs_type *new =
81 (search_dirs_type *)ldmalloc((bfd_size_type)(sizeof(search_dirs_type)));
83 new->next = (search_dirs_type*)NULL;
84 *search_tail_ptr = new;
85 search_tail_ptr = &new->next;
90 cached_bfd_openr(attempt,entry)
92 lang_input_statement_type *entry;
94 entry->the_bfd = bfd_openr(attempt, entry->target);
95 if (trace_file_tries == true ) {
96 info("attempt to open %s %s\n", attempt,
97 (entry->the_bfd == (bfd *)NULL) ? "failed" : "succeeded" );
99 return entry->the_bfd;
103 open_a(arch, entry, lib, suffix)
105 lang_input_statement_type *entry;
110 search_dirs_type *search ;
111 for (search = search_head;
112 search != (search_dirs_type *)NULL;
113 search = search->next)
117 if (entry->is_archive == true) {
123 entry->filename, arch, suffix);
126 if (entry->filename[0] == '/' || entry->filename[0] == '.') {
127 strcpy(buffer, entry->filename);
129 sprintf(buffer,"%s%s%s",search->name, slash, entry->filename);
132 string = buystring(buffer);
133 desc = cached_bfd_openr (string, entry);
136 entry->filename = string;
137 entry->search_dirs_flag = false;
138 entry->the_bfd = desc;
146 /* Open the input file specified by 'entry', and return a descriptor.
147 The open file is remembered; if the same file is opened twice in a row,
148 a new open is not actually done. */
151 ldfile_open_file (entry)
152 lang_input_statement_type *entry;
155 if (entry->superfile)
156 ldfile_open_file (entry->superfile);
158 if (entry->search_dirs_flag)
160 search_arch_type *arch;
161 /* Try to open <filename><suffix> or lib<filename><suffix>.a */
163 for (arch = search_arch_head;
164 arch != (search_arch_type *)NULL;
166 if (open_a(arch->name,entry,"lib",".a") != (bfd *)NULL) {
170 if (open_a(arch->name,entry,":lib",".a") != (bfd *)NULL) {
179 entry->the_bfd = cached_bfd_openr (entry->filename, entry);
183 einfo("%F%P: cannot open %s: %E\n", entry->local_sym_name);
187 /* Try to open NAME; if that fails, try NAME with EXTEN appended to it. */
190 try_open(name, exten)
197 result = fopen(name, "r");
198 if (trace_file_tries == true) {
199 if (result == (FILE *)NULL) {
204 if (result != (FILE *)NULL) {
209 sprintf(buff, "%s%s", name, exten);
210 result = fopen(buff, "r");
211 if (trace_file_tries == true) {
212 if (result == (FILE *)NULL) {
221 /* Try to open NAME; if that fails, look for it in any directories
222 specified with -L, without and with EXTEND apppended. */
225 find_a_name(name, extend)
229 search_dirs_type *search;
233 /* First try raw name */
234 result = try_open(name,"");
235 if (result == (FILE *)NULL) {
236 /* Try now prefixes */
237 for (search = search_head;
238 search != (search_dirs_type *)NULL;
239 search = search->next) {
240 sprintf(buffer,"%s/%s", search->name, name);
241 result = try_open(buffer, extend);
249 ldfile_open_command_file(name)
252 FILE *ldlex_input_stack;
253 ldlex_input_stack = find_a_name(name, "");
255 if (ldlex_input_stack == (FILE *)NULL) {
256 einfo("%P%F: cannot open load script file %s: %E\n",name);
258 lex_push_file(ldlex_input_stack, name);
260 ldfile_input_filename = name;
271 gnu960_map_archname( name )
274 struct tabentry { char *cmd_switch; char *arch; };
275 static struct tabentry arch_tab[] = {
279 "KC", "mc", /* Synonym for MC */
282 "SA", "ka", /* Functionally equivalent to KA */
283 "SB", "kb", /* Functionally equivalent to KB */
289 for ( tp = arch_tab; tp->cmd_switch != NULL; tp++ ){
290 if ( !strcmp(name,tp->cmd_switch) ){
295 if ( tp->cmd_switch == NULL ){
296 einfo("%P%F: unknown architecture: %s\n",name);
304 ldfile_add_arch(name)
307 search_arch_type *new =
308 (search_arch_type *)ldmalloc((bfd_size_type)(sizeof(search_arch_type)));
312 if (ldfile_output_machine_name[0] != '\0') {
313 einfo("%P%F: target architecture respecified\n");
316 ldfile_output_machine_name = name;
319 new->next = (search_arch_type*)NULL;
320 new->name = gnu960_map_archname( name );
321 *search_arch_tail_ptr = new;
322 search_arch_tail_ptr = &new->next;
326 #else /* not GNU960 */
330 ldfile_add_arch (in_name)
331 CONST char * in_name;
333 char *name = buystring(in_name);
334 search_arch_type *new =
335 (search_arch_type *)ldmalloc((bfd_size_type)(sizeof(search_arch_type)));
337 ldfile_output_machine_name = in_name;
340 new->next = (search_arch_type*)NULL;
342 if (isupper(*name)) *name = tolower(*name);
345 *search_arch_tail_ptr = new;
346 search_arch_tail_ptr = &new->next;
351 /* Set the output architecture */
353 ldfile_set_output_arch (string)
356 bfd_arch_info_type *arch = bfd_scan_arch(string);
359 ldfile_output_architecture = arch->arch;
360 ldfile_output_machine = arch->mach;
361 ldfile_output_machine_name = arch->printable_name;
364 einfo("%P%F: Can't represent machine `%s'\n", string);