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
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
;
44 /* start-sanitize-mpw */
46 /* end-sanitize-mpw */
52 /* start-sanitize-mpw */
54 /* The MPW path char is a colon. */
57 /* end-sanitize-mpw */
63 typedef struct search_dirs
66 struct search_dirs
*next
;
69 static search_dirs_type
*search_head
;
70 static search_dirs_type
**search_tail_ptr
= &search_head
;
72 typedef struct search_arch
75 struct search_arch
*next
;
78 static search_arch_type
*search_arch_head
;
79 static search_arch_type
**search_arch_tail_ptr
= &search_arch_head
;
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
));
88 ldfile_add_library_path(name
)
91 search_dirs_type
*new =
92 (search_dirs_type
*)ldmalloc((bfd_size_type
)(sizeof(search_dirs_type
)));
94 new->next
= (search_dirs_type
*)NULL
;
95 *search_tail_ptr
= new;
96 search_tail_ptr
= &new->next
;
101 cached_bfd_openr(attempt
,entry
)
103 lang_input_statement_type
*entry
;
105 entry
->the_bfd
= bfd_openr(attempt
, entry
->target
);
106 if (trace_file_tries
== true ) {
107 info_msg ("attempt to open %s %s\n", attempt
,
108 (entry
->the_bfd
== (bfd
*)NULL
) ? "failed" : "succeeded" );
110 return entry
->the_bfd
;
114 open_a(arch
, entry
, lib
, suffix
)
116 lang_input_statement_type
*entry
;
121 search_dirs_type
*search
;
122 for (search
= search_head
;
123 search
!= (search_dirs_type
*)NULL
;
124 search
= search
->next
)
128 if (entry
->is_archive
== true) {
134 entry
->filename
, arch
, suffix
);
137 if (entry
->filename
[0] == '/' || entry
->filename
[0] == '.') {
138 strcpy(buffer
, entry
->filename
);
140 sprintf(buffer
,"%s%s%s",search
->name
, slash
, entry
->filename
);
143 string
= buystring(buffer
);
144 desc
= cached_bfd_openr (string
, entry
);
147 entry
->filename
= string
;
148 entry
->search_dirs_flag
= false;
149 entry
->the_bfd
= desc
;
157 /* Open the input file specified by 'entry', and return a descriptor.
158 The open file is remembered; if the same file is opened twice in a row,
159 a new open is not actually done. */
162 ldfile_open_file (entry
)
163 lang_input_statement_type
*entry
;
166 if (entry
->superfile
)
167 ldfile_open_file (entry
->superfile
);
169 if (entry
->search_dirs_flag
)
171 search_arch_type
*arch
;
172 /* Try to open <filename><suffix> or lib<filename><suffix>.a */
174 for (arch
= search_arch_head
;
175 arch
!= (search_arch_type
*)NULL
;
177 if (open_a(arch
->name
,entry
,"lib",".a") != (bfd
*)NULL
) {
181 if (open_a(arch
->name
,entry
,":lib",".a") != (bfd
*)NULL
) {
190 entry
->the_bfd
= cached_bfd_openr (entry
->filename
, entry
);
194 einfo("%F%P: cannot open %s: %E\n", entry
->local_sym_name
);
198 /* Try to open NAME; if that fails, try NAME with EXTEN appended to it. */
201 try_open(name
, exten
)
208 result
= fopen(name
, "r");
209 if (trace_file_tries
== true) {
210 if (result
== (FILE *)NULL
) {
211 info_msg ("cannot find ");
213 info_msg ("%s\n",name
);
215 if (result
!= (FILE *)NULL
) {
220 sprintf(buff
, "%s%s", name
, exten
);
221 result
= fopen(buff
, "r");
222 if (trace_file_tries
== true) {
223 if (result
== (FILE *)NULL
) {
224 info_msg ("cannot find ");
226 info_msg ("%s\n", buff
);
232 /* Try to open NAME; if that fails, look for it in any directories
233 specified with -L, without and with EXTEND apppended. */
236 ldfile_find_command_file(name
, extend
)
240 search_dirs_type
*search
;
244 /* First try raw name */
245 result
= try_open(name
,"");
246 if (result
== (FILE *)NULL
) {
247 /* Try now prefixes */
248 for (search
= search_head
;
249 search
!= (search_dirs_type
*)NULL
;
250 search
= search
->next
) {
251 sprintf(buffer
,"%s/%s", search
->name
, name
);
252 result
= try_open(buffer
, extend
);
260 ldfile_open_command_file(name
)
263 FILE *ldlex_input_stack
;
264 ldlex_input_stack
= ldfile_find_command_file(name
, "");
266 if (ldlex_input_stack
== (FILE *)NULL
) {
267 einfo("%P%F: cannot open linker script file %s: %E\n",name
);
269 lex_push_file(ldlex_input_stack
, name
);
271 ldfile_input_filename
= name
;
282 gnu960_map_archname( name
)
285 struct tabentry
{ char *cmd_switch
; char *arch
; };
286 static struct tabentry arch_tab
[] = {
290 "KC", "mc", /* Synonym for MC */
293 "SA", "ka", /* Functionally equivalent to KA */
294 "SB", "kb", /* Functionally equivalent to KB */
300 for ( tp
= arch_tab
; tp
->cmd_switch
!= NULL
; tp
++ ){
301 if ( !strcmp(name
,tp
->cmd_switch
) ){
306 if ( tp
->cmd_switch
== NULL
){
307 einfo("%P%F: unknown architecture: %s\n",name
);
315 ldfile_add_arch(name
)
318 search_arch_type
*new =
319 (search_arch_type
*)ldmalloc((bfd_size_type
)(sizeof(search_arch_type
)));
323 if (ldfile_output_machine_name
[0] != '\0') {
324 einfo("%P%F: target architecture respecified\n");
327 ldfile_output_machine_name
= name
;
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
;
337 #else /* not GNU960 */
341 ldfile_add_arch (in_name
)
342 CONST
char * in_name
;
344 char *name
= buystring(in_name
);
345 search_arch_type
*new =
346 (search_arch_type
*)ldmalloc((bfd_size_type
)(sizeof(search_arch_type
)));
348 ldfile_output_machine_name
= in_name
;
351 new->next
= (search_arch_type
*)NULL
;
353 if (isupper(*name
)) *name
= tolower(*name
);
356 *search_arch_tail_ptr
= new;
357 search_arch_tail_ptr
= &new->next
;
362 /* Set the output architecture */
364 ldfile_set_output_arch (string
)
367 bfd_arch_info_type
*arch
= bfd_scan_arch(string
);
370 ldfile_output_architecture
= arch
->arch
;
371 ldfile_output_machine
= arch
->mach
;
372 ldfile_output_machine_name
= arch
->printable_name
;
375 einfo("%P%F: cannot represent machine `%s'\n", string
);