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- /* Copyright (C) 1991 Free Software Foundation, Inc.
-
- This file is part of GLD, the Gnu Linker.
-
- GLD is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 1, or (at your option)
- any later version.
-
- GLD is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GLD; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-
- /* This bit does the tree decoration when MRI style link scripts are parsed */
-
- /*
- contributed by Steve Chamberlain
- sac@cygnus.com
-
- */
-
- #include "bfd.h"
- #include "sysdep.h"
- #include "ld.h"
- #include "ldlang.h"
- #include "mri.h"
- #include "ldgram.h"
- #include "ldexp.h"
-
-
- struct section_name_struct {
- struct section_name_struct *next;
- CONST char *name;
- CONST char *alias;
- etree_type *vma;
- etree_type *align;
- etree_type *subalign;
- int ok_to_load;
- } ;
-
- int symbol_truncate = 10000;
- struct section_name_struct *order;
- struct section_name_struct *only_load;
- struct section_name_struct *address;
- struct section_name_struct *alias;
-
- struct section_name_struct *alignment;
- struct section_name_struct *subalignment;
-
- extern char *strdup();
-
- static struct section_name_struct **
- DEFUN(lookup,(name, list),
- CONST char *name AND
- struct section_name_struct **list)
- {
-
- struct section_name_struct **ptr = list;
- while (*ptr)
- {
- if (strcmp(name, (*ptr)->name) == 0) {
- /* If this is a match, delete it, we only keep the last instance
- of any name */
- *ptr = (*ptr)->next;
- }
- else {
- ptr = &((*ptr)->next);
- }
- }
-
- *ptr = (struct section_name_struct *)ldmalloc(sizeof(struct section_name_struct));
- return ptr;
- }
-
- static void
- DEFUN(mri_add_to_list,(list, name, vma, alias, align, subalign),
- struct section_name_struct **list AND
- CONST char *name AND
- etree_type *vma AND
- CONST char *alias AND
- etree_type *align AND
- etree_type *subalign)
- {
- struct section_name_struct **ptr = lookup(name,list);
- (*ptr)->name = name;
- (*ptr)->vma = vma;
- (*ptr)->next = (struct section_name_struct *)NULL;
- (*ptr)->ok_to_load = 0;
- (*ptr)->alias = alias;
- (*ptr)->align = align;
- (*ptr)->subalign = subalign;
- }
-
-
- void
- DEFUN(mri_output_section, (name, vma),
- CONST char *name AND
- etree_type *vma)
-
- {
- mri_add_to_list(&address, name, vma, 0,0,0);
- }
-
- /* if any ABSOLUTE <name> are in the script, only load those files
- marked thus */
-
- void DEFUN(mri_only_load,(name), CONST char *name)
- {
- mri_add_to_list(&only_load, name, 0, 0,0,0);
- }
-
-
- etree_type *base;
-
- void
- DEFUN(mri_base,(exp),
- etree_type *exp)
- {
- base = exp;
- }
-
- static int done_tree = 0;
- static void
- DEFUN_VOID(mri_draw_tree)
- {
- if (done_tree) return;
-
- /* Create the regions */
- {
- lang_memory_region_type *r;
- r = lang_memory_region_lookup("long");
- r->current = r->origin = exp_get_vma(base, (bfd_vma)0, "origin",
- lang_first_phase_enum);
- r->length = (bfd_size_type) exp_get_vma(0, (bfd_vma) ~((bfd_size_type)0),
- "length", lang_first_phase_enum);
- }
-
-
- /* Now build the statements for the ldlang machine */
-
-
- /* Attatch the addresses of any which have addresses, and add the
- ones not mentioned */
- if (address != (struct section_name_struct *)NULL) {
- struct section_name_struct *alist;
- struct section_name_struct *olist;
- if (order == (struct section_name_struct *)NULL) {
- order = address;
- }
-
- for (alist = address;
- alist != (struct section_name_struct*)NULL;
- alist = alist->next)
- {
- int done = 0;
- for (olist = order;
- done == 0 &&
- olist != (struct section_name_struct *)NULL;
- olist = olist->next)
- {
- if (strcmp(alist->name, olist->name) == 0)
- {
- olist->vma = alist->vma;
- done = 1;
- }
- }
- if (!done) {
- /* add this onto end of order list */
- mri_add_to_list(&order, alist->name, alist->vma, 0,0,0);
- }
-
- }
-
- }
-
- /* If we're only supposed to load a subset of them in, then prune
- the list. */
-
- if (only_load != (struct section_name_struct *)NULL)
- {
- struct section_name_struct *ptr1;
- struct section_name_struct *ptr2;
- if (order == (struct section_name_struct*)NULL)
- order = only_load;
-
- /* See if this name is in the list, if it is then we can load it
- */
- for (ptr1 = only_load; ptr1; ptr1 = ptr1->next)
- {
- for (ptr2= order; ptr2; ptr2=ptr2->next)
- {
- if (strcmp(ptr2->name, ptr1->name)==0) {
- ptr2->ok_to_load = 1;
- }
- }
- }
- }
- else
- {
- /* No only load list, so everything is ok to load */
- struct section_name_struct *ptr;
- for (ptr = order; ptr; ptr=ptr->next) {
- ptr->ok_to_load = 1;
- }
- }
-
-
-
- /* Create the order of sections to load */
- if (order != (struct section_name_struct *)NULL)
- {
- /* Been told to output the sections in a certain order */
- struct section_name_struct *p = order;
- while (p)
- {
- struct section_name_struct *aptr;
- etree_type *align = 0;
- etree_type *subalign = 0;
- /* See if an alignment has been specified */
-
- for (aptr = alignment; aptr; aptr= aptr->next)
- {
- if (strcmp(aptr->name, p->name)==0) {
- align = aptr->align;
- }
- }
-
- for (aptr = subalignment; aptr; aptr= aptr->next)
- {
- if (strcmp(aptr->name, p->name)==0) {
- subalign = aptr->subalign;
- }
- }
-
- if (base == 0) {
- base = p->vma ? p->vma :exp_nameop(NAME, ".");
- }
- lang_enter_output_section_statement(p->name, base,
- p->ok_to_load ? 0 :
- SEC_NEVER_LOAD, 1,
- align, subalign);
- base = 0;
- lang_add_wild(p->name, (char *)NULL);
- /* If there is an alias for this section, add it too */
- for (aptr = alias; aptr; aptr = aptr->next) {
-
- if (strcmp(aptr->alias, p->name)== 0) {
- lang_add_wild(aptr->name, (char *)NULL);
- }
- }
-
- lang_leave_output_section_statement(0, "long");
- p = p->next;
- }
- }
-
-
- done_tree = 1;
-
- }
- void
- DEFUN(mri_load,(name),
- CONST char *name)
- {
- mri_draw_tree();
-
- base = 0;
- lang_add_input_file(name,
- lang_input_file_is_file_enum, (char *)NULL);
- /* lang_leave_output_section_statement(0,"*default*");*/
- }
-
-
- void
- DEFUN(mri_order,(name),
- CONST char *name)
- {
- mri_add_to_list(&order, name, 0, 0,0,0);
- }
-
- void
- DEFUN(mri_alias, (want, is, isn ),
- CONST char *want AND
- CONST char *is AND
- int isn)
- {
- if (!is) {
- /* Some sections are digits - */
- char buf[20];
- sprintf(buf, "%d", isn);
- is =strdup(buf);
- }
- mri_add_to_list(&alias, is, 0, want,0,0);
-
- }
-
-
- void
- DEFUN(mri_name,(name),
- CONST char *name)
- {
- lang_add_output(name);
-
- }
-
-
- void
- DEFUN(mri_format,(name),
- CONST char *name)
- {
- if (strcmp(name, "S") == 0)
- {
- lang_add_output_format("srec");
- }
- else if (strcmp(name, "IEEE") == 0)
- {
- lang_add_output_format("ieee");
- }
- else if (strcmp(name, "COFF") == 0)
- {
- lang_add_output_format("coff-m68k");
- }
- else {
- einfo("%P%F: unknown format type %s\n", name);
- }
- }
-
-
- void
- DEFUN(mri_public,(name, exp),
- CONST char *name AND
- etree_type *exp)
- {
-
- lang_add_assignment(exp_assop('=', name, exp));
- }
-
- void
- DEFUN(mri_align,(name, exp),
- CONST char *name AND
- etree_type *exp)
- {
- mri_add_to_list(&alignment, name,0,0,exp,0);
- }
-
- void
- DEFUN(mri_alignmod,(name, exp),
- CONST char *name AND
- etree_type *exp)
- {
- mri_add_to_list(&subalignment, name,0,0,0,exp);
- }
-
-
- void
- DEFUN(mri_truncate,(exp),
- int exp)
- {
- symbol_truncate = exp;
- }
-