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-rw-r--r--x/binutils/ld/mri.c332
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diff --git a/x/binutils/ld/mri.c b/x/binutils/ld/mri.c
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+/* mri.c -- handle MRI style linker scripts
+ Copyright 1991, 1992, 1993, 1994, 1996, 1997, 1998, 1999, 2000, 2002,
+ 2003, 2004 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 2, 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, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, 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 "ldexp.h"
+#include "ldlang.h"
+#include "ldmisc.h"
+#include "mri.h"
+#include <ldgram.h>
+#include "libiberty.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;
+};
+
+unsigned 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;
+
+static struct section_name_struct **
+lookup (const char *name, 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 = xmalloc (sizeof (struct section_name_struct));
+ return ptr;
+}
+
+static void
+mri_add_to_list (struct section_name_struct **list,
+ const char *name,
+ etree_type *vma,
+ const char *zalias,
+ etree_type *align,
+ etree_type *subalign)
+{
+ struct section_name_struct **ptr = lookup (name, list);
+
+ (*ptr)->name = name;
+ (*ptr)->vma = vma;
+ (*ptr)->next = NULL;
+ (*ptr)->ok_to_load = 0;
+ (*ptr)->alias = zalias;
+ (*ptr)->align = align;
+ (*ptr)->subalign = subalign;
+}
+
+void
+mri_output_section (const char *name, 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
+mri_only_load (const char *name)
+{
+ mri_add_to_list (&only_load, name, 0, 0, 0, 0);
+}
+
+void
+mri_base (etree_type *exp)
+{
+ base = exp;
+}
+
+static int done_tree = 0;
+
+void
+mri_draw_tree (void)
+{
+ if (done_tree)
+ return;
+
+#if 0 /* We don't bother with memory regions. */
+ /* 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) 0, "length",
+ lang_first_phase_enum);
+ }
+#endif
+
+ /* Now build the statements for the ldlang machine. */
+
+ /* Attach the addresses of any which have addresses,
+ and add the ones not mentioned. */
+ if (address != NULL)
+ {
+ struct section_name_struct *alist;
+ struct section_name_struct *olist;
+
+ if (order == NULL)
+ order = address;
+
+ for (alist = address;
+ alist != NULL;
+ alist = alist->next)
+ {
+ int done = 0;
+
+ for (olist = order; done == 0 && olist != 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 != NULL)
+ {
+ struct section_name_struct *ptr1;
+ struct section_name_struct *ptr2;
+
+ if (order == 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 != 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;
+ struct wildcard_list *tmp;
+
+ /* 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 : noload_section,
+ align, subalign, NULL);
+ base = 0;
+ tmp = xmalloc (sizeof *tmp);
+ tmp->next = NULL;
+ tmp->spec.name = p->name;
+ tmp->spec.exclude_name_list = NULL;
+ tmp->spec.sorted = FALSE;
+ lang_add_wild (NULL, tmp, FALSE);
+
+ /* 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)
+ {
+ tmp = xmalloc (sizeof *tmp);
+ tmp->next = NULL;
+ tmp->spec.name = aptr->name;
+ tmp->spec.exclude_name_list = NULL;
+ tmp->spec.sorted = FALSE;
+ lang_add_wild (NULL, tmp, FALSE);
+ }
+
+ lang_leave_output_section_statement (0, "*default*", NULL, NULL);
+
+ p = p->next;
+ }
+ }
+
+ done_tree = 1;
+}
+
+void
+mri_load (const char *name)
+{
+ base = 0;
+ lang_add_input_file (name, lang_input_file_is_file_enum, NULL);
+#if 0
+ lang_leave_output_section_statement (0, "*default*");
+#endif
+}
+
+void
+mri_order (const char *name)
+{
+ mri_add_to_list (&order, name, 0, 0, 0, 0);
+}
+
+void
+mri_alias (const char *want, const char *is, int isn)
+{
+ if (!is)
+ {
+ char buf[20];
+
+ /* Some sections are digits. */
+ sprintf (buf, "%d", isn);
+
+ is = xstrdup (buf);
+
+ if (is == NULL)
+ abort ();
+ }
+
+ mri_add_to_list (&alias, is, 0, want, 0, 0);
+}
+
+void
+mri_name (const char *name)
+{
+ lang_add_output (name, 1);
+}
+
+void
+mri_format (const char *name)
+{
+ if (strcmp (name, "S") == 0)
+ lang_add_output_format ("srec", NULL, NULL, 1);
+
+ else if (strcmp (name, "IEEE") == 0)
+ lang_add_output_format ("ieee", NULL, NULL, 1);
+
+ else if (strcmp (name, "COFF") == 0)
+ lang_add_output_format ("coff-m68k", NULL, NULL, 1);
+
+ else
+ einfo (_("%P%F: unknown format type %s\n"), name);
+}
+
+void
+mri_public (const char *name, etree_type *exp)
+{
+ lang_add_assignment (exp_assop ('=', name, exp));
+}
+
+void
+mri_align (const char *name, etree_type *exp)
+{
+ mri_add_to_list (&alignment, name, 0, 0, exp, 0);
+}
+
+void
+mri_alignmod (const char *name, etree_type *exp)
+{
+ mri_add_to_list (&subalignment, name, 0, 0, 0, exp);
+}
+
+void
+mri_truncate (unsigned int exp)
+{
+ symbol_truncate = exp;
+}
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