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
40 char *ldfile_input_filename;
41 CONST char * ldfile_output_machine_name ="";
42 unsigned long ldfile_output_machine;
43 enum bfd_architecture ldfile_output_architecture;
55 typedef struct search_dirs
58 struct search_dirs *next;
61 static search_dirs_type *search_head;
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;
76 ldfile_add_library_path(name)
79 search_dirs_type *new =
80 (search_dirs_type *)ldmalloc((bfd_size_type)(sizeof(search_dirs_type)));
82 new->next = (search_dirs_type*)NULL;
83 *search_tail_ptr = new;
84 search_tail_ptr = &new->next;
89 cached_bfd_openr(attempt,entry)
91 lang_input_statement_type *entry;
93 entry->the_bfd = bfd_openr(attempt, entry->target);
94 if (trace_file_tries == true ) {
95 info_msg ("attempt to open %s %s\n", attempt,
96 (entry->the_bfd == (bfd *)NULL) ? "failed" : "succeeded" );
98 return entry->the_bfd;
102 open_a(arch, entry, lib, suffix)
104 lang_input_statement_type *entry;
109 search_dirs_type *search ;
110 for (search = search_head;
111 search != (search_dirs_type *)NULL;
112 search = search->next)
116 if (entry->is_archive == true) {
122 entry->filename, arch, suffix);
125 if (entry->filename[0] == '/' || entry->filename[0] == '.') {
126 strcpy(buffer, entry->filename);
128 sprintf(buffer,"%s%s%s",search->name, slash, entry->filename);
131 string = buystring(buffer);
132 desc = cached_bfd_openr (string, entry);
135 entry->filename = string;
136 entry->search_dirs_flag = false;
137 entry->the_bfd = desc;
145 /* Open the input file specified by 'entry', and return a descriptor.
146 The open file is remembered; if the same file is opened twice in a row,
147 a new open is not actually done. */
150 ldfile_open_file (entry)
151 lang_input_statement_type *entry;
154 if (entry->superfile)
155 ldfile_open_file (entry->superfile);
157 if (entry->search_dirs_flag)
159 search_arch_type *arch;
160 /* Try to open <filename><suffix> or lib<filename><suffix>.a */
162 for (arch = search_arch_head;
163 arch != (search_arch_type *)NULL;
165 if (open_a(arch->name,entry,"lib",".a") != (bfd *)NULL) {
169 if (open_a(arch->name,entry,":lib",".a") != (bfd *)NULL) {
178 entry->the_bfd = cached_bfd_openr (entry->filename, entry);
182 einfo("%F%P: cannot open %s: %E\n", entry->local_sym_name);
186 /* Try to open NAME; if that fails, try NAME with EXTEN appended to it. */
189 try_open(name, exten)
196 result = fopen(name, "r");
197 if (trace_file_tries == true) {
198 if (result == (FILE *)NULL) {
199 info_msg ("cannot find ");
201 info_msg ("%s\n",name);
203 if (result != (FILE *)NULL) {
208 sprintf(buff, "%s%s", name, exten);
209 result = fopen(buff, "r");
210 if (trace_file_tries == true) {
211 if (result == (FILE *)NULL) {
212 info_msg ("cannot find ");
214 info_msg ("%s\n", buff);
220 /* Try to open NAME; if that fails, look for it in any directories
221 specified with -L, without and with EXTEND apppended. */
224 ldfile_find_command_file(name, extend)
228 search_dirs_type *search;
232 /* First try raw name */
233 result = try_open(name,"");
234 if (result == (FILE *)NULL) {
235 /* Try now prefixes */
236 for (search = search_head;
237 search != (search_dirs_type *)NULL;
238 search = search->next) {
239 sprintf(buffer,"%s/%s", search->name, name);
240 result = try_open(buffer, extend);
248 ldfile_open_command_file(name)
251 FILE *ldlex_input_stack;
252 ldlex_input_stack = ldfile_find_command_file(name, "");
254 if (ldlex_input_stack == (FILE *)NULL) {
255 einfo("%P%F: cannot open linker script file %s: %E\n",name);
257 lex_push_file(ldlex_input_stack, name);
259 ldfile_input_filename = name;
270 gnu960_map_archname( name )
273 struct tabentry { char *cmd_switch; char *arch; };
274 static struct tabentry arch_tab[] = {
278 "KC", "mc", /* Synonym for MC */
281 "SA", "ka", /* Functionally equivalent to KA */
282 "SB", "kb", /* Functionally equivalent to KB */
288 for ( tp = arch_tab; tp->cmd_switch != NULL; tp++ ){
289 if ( !strcmp(name,tp->cmd_switch) ){
294 if ( tp->cmd_switch == NULL ){
295 einfo("%P%F: unknown architecture: %s\n",name);
303 ldfile_add_arch(name)
306 search_arch_type *new =
307 (search_arch_type *)ldmalloc((bfd_size_type)(sizeof(search_arch_type)));
311 if (ldfile_output_machine_name[0] != '\0') {
312 einfo("%P%F: target architecture respecified\n");
315 ldfile_output_machine_name = name;
318 new->next = (search_arch_type*)NULL;
319 new->name = gnu960_map_archname( name );
320 *search_arch_tail_ptr = new;
321 search_arch_tail_ptr = &new->next;
325 #else /* not GNU960 */
329 ldfile_add_arch (in_name)
330 CONST char * in_name;
332 char *name = buystring(in_name);
333 search_arch_type *new =
334 (search_arch_type *)ldmalloc((bfd_size_type)(sizeof(search_arch_type)));
336 ldfile_output_machine_name = in_name;
339 new->next = (search_arch_type*)NULL;
341 if (isupper(*name)) *name = tolower(*name);
344 *search_arch_tail_ptr = new;
345 search_arch_tail_ptr = &new->next;
350 /* Set the output architecture */
352 ldfile_set_output_arch (string)
355 bfd_arch_info_type *arch = bfd_scan_arch(string);
358 ldfile_output_architecture = arch->arch;
359 ldfile_output_machine = arch->mach;
360 ldfile_output_machine_name = arch->printable_name;
363 einfo("%P%F: cannot represent machine `%s'\n", string);