0,0 → 1,319 |
/* mri.c -- handle MRI style linker scripts |
Copyright 1991, 1992, 1993, 1994, 1996, 1997, 1998, 1999, 2000, 2001, |
2002, 2003, 2004, 2005, 2007, 2011 Free Software Foundation, Inc. |
Contributed by Steve Chamberlain <sac@cygnus.com>. |
|
This file is part of the GNU Binutils. |
|
This program 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 3 of the License, or |
(at your option) any later version. |
|
This program 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 this program; if not, write to the Free Software |
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
MA 02110-1301, USA. */ |
|
|
/* This bit does the tree decoration when MRI style link scripts |
are parsed. */ |
|
#include "sysdep.h" |
#include "bfd.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; |
}; |
|
static unsigned int symbol_truncate = 10000; |
static struct section_name_struct *order; |
static struct section_name_struct *only_load; |
static struct section_name_struct *address; |
static struct section_name_struct *alias; |
|
static struct section_name_struct *alignment; |
static 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 = (struct section_name_struct *) |
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; |
|
/* 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 ? normal_section : noload_section, |
align, subalign, NULL, 0, 0); |
base = 0; |
tmp = (struct wildcard_list *) xmalloc (sizeof *tmp); |
tmp->next = NULL; |
tmp->spec.name = p->name; |
tmp->spec.exclude_name_list = NULL; |
tmp->spec.sorted = none; |
tmp->spec.section_flag_list = NULL; |
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 = (struct wildcard_list *) xmalloc (sizeof *tmp); |
tmp->next = NULL; |
tmp->spec.name = aptr->name; |
tmp->spec.exclude_name_list = NULL; |
tmp->spec.sorted = none; |
tmp->spec.section_flag_list = NULL; |
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); |
} |
|
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_assign (name, exp, FALSE)); |
} |
|
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; |
} |