1 /* mri.c -- handle MRI style linker scripts
2 Copyright 1991, 1992, 1993, 1994, 1996, 1997, 1998, 1999, 2000, 2002,
3 2003, 2004 Free Software Foundation, Inc.
5 This file is part of GLD, the Gnu Linker.
7 GLD is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GLD is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GLD; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
22 This bit does the tree decoration when MRI style link scripts
25 Contributed by Steve Chamberlain <sac@cygnus.com>. */
35 #include "libiberty.h"
37 struct section_name_struct {
38 struct section_name_struct *next;
47 unsigned 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 static struct section_name_struct **
57 lookup (const char *name, struct section_name_struct **list)
59 struct section_name_struct **ptr = list;
63 if (strcmp (name, (*ptr)->name) == 0)
64 /* If this is a match, delete it, we only keep the last instance
68 ptr = &((*ptr)->next);
71 *ptr = xmalloc (sizeof (struct section_name_struct));
76 mri_add_to_list (struct section_name_struct **list,
83 struct section_name_struct **ptr = lookup (name, list);
88 (*ptr)->ok_to_load = 0;
89 (*ptr)->alias = zalias;
90 (*ptr)->align = align;
91 (*ptr)->subalign = subalign;
95 mri_output_section (const char *name, etree_type *vma)
97 mri_add_to_list (&address, name, vma, 0, 0, 0);
100 /* If any ABSOLUTE <name> are in the script, only load those files
104 mri_only_load (const char *name)
106 mri_add_to_list (&only_load, name, 0, 0, 0, 0);
110 mri_base (etree_type *exp)
115 static int done_tree = 0;
123 #if 0 /* We don't bother with memory regions. */
124 /* Create the regions. */
126 lang_memory_region_type *r;
128 r = lang_memory_region_lookup("long");
129 r->current = r->origin = exp_get_vma (base, (bfd_vma)0, "origin",
130 lang_first_phase_enum);
131 r->length = (bfd_size_type) exp_get_vma (0, ~(bfd_vma) 0, "length",
132 lang_first_phase_enum);
136 /* Now build the statements for the ldlang machine. */
138 /* Attach the addresses of any which have addresses,
139 and add the ones not mentioned. */
142 struct section_name_struct *alist;
143 struct section_name_struct *olist;
148 for (alist = address;
154 for (olist = order; done == 0 && olist != NULL; olist = olist->next)
156 if (strcmp (alist->name, olist->name) == 0)
158 olist->vma = alist->vma;
165 /* Add this onto end of order list. */
166 mri_add_to_list (&order, alist->name, alist->vma, 0, 0, 0);
171 /* If we're only supposed to load a subset of them in, then prune
173 if (only_load != NULL)
175 struct section_name_struct *ptr1;
176 struct section_name_struct *ptr2;
181 /* See if this name is in the list, if it is then we can load it. */
182 for (ptr1 = only_load; ptr1; ptr1 = ptr1->next)
183 for (ptr2 = order; ptr2; ptr2 = ptr2->next)
184 if (strcmp (ptr2->name, ptr1->name) == 0)
185 ptr2->ok_to_load = 1;
189 /* No only load list, so everything is ok to load. */
190 struct section_name_struct *ptr;
192 for (ptr = order; ptr; ptr = ptr->next)
196 /* Create the order of sections to load. */
199 /* Been told to output the sections in a certain order. */
200 struct section_name_struct *p = order;
204 struct section_name_struct *aptr;
205 etree_type *align = 0;
206 etree_type *subalign = 0;
207 struct wildcard_list *tmp;
209 /* See if an alignment has been specified. */
210 for (aptr = alignment; aptr; aptr = aptr->next)
211 if (strcmp (aptr->name, p->name) == 0)
214 for (aptr = subalignment; aptr; aptr = aptr->next)
215 if (strcmp (aptr->name, p->name) == 0)
216 subalign = aptr->subalign;
219 base = p->vma ? p->vma : exp_nameop (NAME, ".");
221 lang_enter_output_section_statement (p->name, base,
222 p->ok_to_load ? 0 : noload_section,
223 align, subalign, NULL, 0);
225 tmp = xmalloc (sizeof *tmp);
227 tmp->spec.name = p->name;
228 tmp->spec.exclude_name_list = NULL;
229 tmp->spec.sorted = none;
230 lang_add_wild (NULL, tmp, FALSE);
232 /* If there is an alias for this section, add it too. */
233 for (aptr = alias; aptr; aptr = aptr->next)
234 if (strcmp (aptr->alias, p->name) == 0)
236 tmp = xmalloc (sizeof *tmp);
238 tmp->spec.name = aptr->name;
239 tmp->spec.exclude_name_list = NULL;
240 tmp->spec.sorted = none;
241 lang_add_wild (NULL, tmp, FALSE);
244 lang_leave_output_section_statement (0, "*default*", NULL, NULL);
254 mri_load (const char *name)
257 lang_add_input_file (name, lang_input_file_is_file_enum, NULL);
259 lang_leave_output_section_statement (0, "*default*");
264 mri_order (const char *name)
266 mri_add_to_list (&order, name, 0, 0, 0, 0);
270 mri_alias (const char *want, const char *is, int isn)
276 /* Some sections are digits. */
277 sprintf (buf, "%d", isn);
285 mri_add_to_list (&alias, is, 0, want, 0, 0);
289 mri_name (const char *name)
291 lang_add_output (name, 1);
295 mri_format (const char *name)
297 if (strcmp (name, "S") == 0)
298 lang_add_output_format ("srec", NULL, NULL, 1);
300 else if (strcmp (name, "IEEE") == 0)
301 lang_add_output_format ("ieee", NULL, NULL, 1);
303 else if (strcmp (name, "COFF") == 0)
304 lang_add_output_format ("coff-m68k", NULL, NULL, 1);
307 einfo (_("%P%F: unknown format type %s\n"), name);
311 mri_public (const char *name, etree_type *exp)
313 lang_add_assignment (exp_assop ('=', name, exp));
317 mri_align (const char *name, etree_type *exp)
319 mri_add_to_list (&alignment, name, 0, 0, exp, 0);
323 mri_alignmod (const char *name, etree_type *exp)
325 mri_add_to_list (&subalignment, name, 0, 0, 0, exp);
329 mri_truncate (unsigned int exp)
331 symbol_truncate = exp;