1 /* Copyright (C) 1991 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. */
20 /* This bit does the tree decoration when MRI style link scripts are parsed */
23 contributed by Steve Chamberlain
37 struct section_name_struct {
38 struct section_name_struct *next;
47 int symbol_truncate = 10000;
48 struct section_name_struct *order;
49 struct section_name_struct *only_load;
50 struct section_name_struct *address;
51 struct section_name_struct *alias;
53 struct section_name_struct *alignment;
54 struct section_name_struct *subalignment;
56 extern char *strdup();
58 static struct section_name_struct **
61 struct section_name_struct **list;
64 struct section_name_struct **ptr = list;
67 if (strcmp(name, (*ptr)->name) == 0) {
68 /* If this is a match, delete it, we only keep the last instance
73 ptr = &((*ptr)->next);
77 *ptr = (struct section_name_struct *)ldmalloc(sizeof(struct section_name_struct));
82 mri_add_to_list (list, name, vma, alias, align, subalign)
83 struct section_name_struct **list;
90 struct section_name_struct **ptr = lookup(name,list);
93 (*ptr)->next = (struct section_name_struct *)NULL;
94 (*ptr)->ok_to_load = 0;
95 (*ptr)->alias = alias;
96 (*ptr)->align = align;
97 (*ptr)->subalign = subalign;
102 mri_output_section (name, vma)
106 mri_add_to_list(&address, name, vma, 0,0,0);
109 /* if any ABSOLUTE <name> are in the script, only load those files
116 mri_add_to_list(&only_load, name, 0, 0,0,0);
129 static int done_tree = 0;
133 if (done_tree) return;
135 /* Create the regions */
137 lang_memory_region_type *r;
138 r = lang_memory_region_lookup("long");
139 r->current = r->origin = exp_get_vma(base, (bfd_vma)0, "origin",
140 lang_first_phase_enum);
141 r->length = (bfd_size_type) exp_get_vma(0, (bfd_vma) ~((bfd_size_type)0),
142 "length", lang_first_phase_enum);
146 /* Now build the statements for the ldlang machine */
149 /* Attatch the addresses of any which have addresses, and add the
150 ones not mentioned */
151 if (address != (struct section_name_struct *)NULL) {
152 struct section_name_struct *alist;
153 struct section_name_struct *olist;
154 if (order == (struct section_name_struct *)NULL) {
158 for (alist = address;
159 alist != (struct section_name_struct*)NULL;
165 olist != (struct section_name_struct *)NULL;
168 if (strcmp(alist->name, olist->name) == 0)
170 olist->vma = alist->vma;
175 /* add this onto end of order list */
176 mri_add_to_list(&order, alist->name, alist->vma, 0,0,0);
183 /* If we're only supposed to load a subset of them in, then prune
186 if (only_load != (struct section_name_struct *)NULL)
188 struct section_name_struct *ptr1;
189 struct section_name_struct *ptr2;
190 if (order == (struct section_name_struct*)NULL)
193 /* See if this name is in the list, if it is then we can load it
195 for (ptr1 = only_load; ptr1; ptr1 = ptr1->next)
197 for (ptr2= order; ptr2; ptr2=ptr2->next)
199 if (strcmp(ptr2->name, ptr1->name)==0) {
200 ptr2->ok_to_load = 1;
207 /* No only load list, so everything is ok to load */
208 struct section_name_struct *ptr;
209 for (ptr = order; ptr; ptr=ptr->next) {
216 /* Create the order of sections to load */
217 if (order != (struct section_name_struct *)NULL)
219 /* Been told to output the sections in a certain order */
220 struct section_name_struct *p = order;
223 struct section_name_struct *aptr;
224 etree_type *align = 0;
225 etree_type *subalign = 0;
226 /* See if an alignment has been specified */
228 for (aptr = alignment; aptr; aptr= aptr->next)
230 if (strcmp(aptr->name, p->name)==0) {
235 for (aptr = subalignment; aptr; aptr= aptr->next)
237 if (strcmp(aptr->name, p->name)==0) {
238 subalign = aptr->subalign;
243 base = p->vma ? p->vma :exp_nameop(NAME, ".");
245 lang_enter_output_section_statement(p->name, base,
250 lang_add_wild(p->name, (char *)NULL);
251 /* If there is an alias for this section, add it too */
252 for (aptr = alias; aptr; aptr = aptr->next) {
254 if (strcmp(aptr->alias, p->name)== 0) {
255 lang_add_wild(aptr->name, (char *)NULL);
259 lang_leave_output_section_statement(0, "long");
275 lang_add_input_file(name,
276 lang_input_file_is_file_enum, (char *)NULL);
277 /* lang_leave_output_section_statement(0,"*default*");*/
285 mri_add_to_list(&order, name, 0, 0,0,0);
289 mri_alias (want, is, isn)
295 /* Some sections are digits - */
297 sprintf(buf, "%d", isn);
300 mri_add_to_list(&alias, is, 0, want,0,0);
309 lang_add_output(name);
318 if (strcmp(name, "S") == 0)
320 lang_add_output_format("srec");
322 else if (strcmp(name, "IEEE") == 0)
324 lang_add_output_format("ieee");
326 else if (strcmp(name, "COFF") == 0)
328 lang_add_output_format("coff-m68k");
331 einfo("%P%F: unknown format type %s\n", name);
337 mri_public (name, exp)
341 lang_add_assignment(exp_assop('=', name, exp));
345 mri_align (name, exp)
349 mri_add_to_list(&alignment, name,0,0,exp,0);
353 mri_alignmod (name, exp)
357 mri_add_to_list(&subalignment, name,0,0,0,exp);
365 symbol_truncate = exp;