/* ldwrite.c -- write out the linked file
- Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000, 2002, 2003
- Free Software Foundation, Inc.
+ Copyright (C) 1991-2021 Free Software Foundation, Inc.
Written by Steve Chamberlain sac@cygnus.com
-This file is part of GLD, the Gnu Linker.
+ 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 2 of the License, or
-(at your option) any later version.
+ 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.
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ 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. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "bfdlink.h"
#include "libiberty.h"
+#include "ctf-api.h"
+#include "safe-ctype.h"
#include "ld.h"
#include "ldexp.h"
asection *output_section;
struct bfd_link_order *link_order;
bfd_vma value;
- bfd_boolean big_endian = FALSE;
output_section = statement->data_statement.output_section;
- ASSERT (output_section->owner == output_bfd);
+ ASSERT (output_section->owner == link_info.output_bfd);
+
+ if (!((output_section->flags & SEC_HAS_CONTENTS) != 0
+ || ((output_section->flags & SEC_LOAD) != 0
+ && (output_section->flags & SEC_THREAD_LOCAL))))
+ break;
- link_order = bfd_new_link_order (output_bfd, output_section);
+ link_order = bfd_new_link_order (link_info.output_bfd, output_section);
if (link_order == NULL)
- einfo (_("%P%F: bfd_new_link_order failed\n"));
+ einfo (_("%F%P: bfd_new_link_order failed\n"));
link_order->type = bfd_data_link_order;
- link_order->offset = statement->data_statement.output_vma;
- link_order->u.data.contents = xmalloc (QUAD_SIZE);
+ link_order->offset = statement->data_statement.output_offset;
+ link_order->u.data.contents = (bfd_byte *) xmalloc (QUAD_SIZE);
value = statement->data_statement.value;
- /* If the endianness of the output BFD is not known, then we
- base the endianness of the data on the first input file.
- By convention, the bfd_put routines for an unknown
+ /* By convention, the bfd_put routines for an unknown
endianness are big endian, so we must swap here if the
- input file is little endian. */
- if (bfd_big_endian (output_bfd))
- big_endian = TRUE;
- else if (bfd_little_endian (output_bfd))
- big_endian = FALSE;
- else
+ input is little endian. */
+ if (!bfd_big_endian (link_info.output_bfd)
+ && !bfd_little_endian (link_info.output_bfd)
+ && !link_info.big_endian)
{
- bfd_boolean swap;
-
- swap = FALSE;
- if (command_line.endian == ENDIAN_BIG)
- big_endian = TRUE;
- else if (command_line.endian == ENDIAN_LITTLE)
- {
- big_endian = FALSE;
- swap = TRUE;
- }
- else if (command_line.endian == ENDIAN_UNSET)
- {
- big_endian = TRUE;
- {
- LANG_FOR_EACH_INPUT_STATEMENT (s)
- {
- if (s->the_bfd != NULL)
- {
- if (bfd_little_endian (s->the_bfd))
- {
- big_endian = FALSE;
- swap = TRUE;
- }
- break;
- }
- }
- }
- }
+ bfd_byte buffer[8];
- if (swap)
+ switch (statement->data_statement.type)
{
- bfd_byte buffer[8];
-
- switch (statement->data_statement.type)
+ case QUAD:
+ case SQUAD:
+ if (sizeof (bfd_vma) >= QUAD_SIZE)
{
- case QUAD:
- case SQUAD:
- if (sizeof (bfd_vma) >= QUAD_SIZE)
- {
- bfd_putl64 (value, buffer);
- value = bfd_getb64 (buffer);
- break;
- }
- /* Fall through. */
- case LONG:
- bfd_putl32 (value, buffer);
- value = bfd_getb32 (buffer);
- break;
- case SHORT:
- bfd_putl16 (value, buffer);
- value = bfd_getb16 (buffer);
+ bfd_putl64 (value, buffer);
+ value = bfd_getb64 (buffer);
break;
- case BYTE:
- break;
- default:
- abort ();
}
+ /* Fall through. */
+ case LONG:
+ bfd_putl32 (value, buffer);
+ value = bfd_getb32 (buffer);
+ break;
+ case SHORT:
+ bfd_putl16 (value, buffer);
+ value = bfd_getb16 (buffer);
+ break;
+ case BYTE:
+ break;
+ default:
+ abort ();
}
}
- ASSERT (output_section->owner == output_bfd);
+ ASSERT (output_section->owner == link_info.output_bfd);
switch (statement->data_statement.type)
{
case QUAD:
case SQUAD:
if (sizeof (bfd_vma) >= QUAD_SIZE)
- bfd_put_64 (output_bfd, value, link_order->u.data.contents);
+ bfd_put_64 (link_info.output_bfd, value,
+ link_order->u.data.contents);
else
{
bfd_vma high;
high = 0;
else
high = (bfd_vma) -1;
- bfd_put_32 (output_bfd, high,
+ bfd_put_32 (link_info.output_bfd, high,
(link_order->u.data.contents
- + (big_endian ? 0 : 4)));
- bfd_put_32 (output_bfd, value,
+ + (link_info.big_endian ? 0 : 4)));
+ bfd_put_32 (link_info.output_bfd, value,
(link_order->u.data.contents
- + (big_endian ? 4 : 0)));
+ + (link_info.big_endian ? 4 : 0)));
}
link_order->size = QUAD_SIZE;
break;
case LONG:
- bfd_put_32 (output_bfd, value, link_order->u.data.contents);
+ bfd_put_32 (link_info.output_bfd, value,
+ link_order->u.data.contents);
link_order->size = LONG_SIZE;
break;
case SHORT:
- bfd_put_16 (output_bfd, value, link_order->u.data.contents);
+ bfd_put_16 (link_info.output_bfd, value,
+ link_order->u.data.contents);
link_order->size = SHORT_SIZE;
break;
case BYTE:
- bfd_put_8 (output_bfd, value, link_order->u.data.contents);
+ bfd_put_8 (link_info.output_bfd, value,
+ link_order->u.data.contents);
link_order->size = BYTE_SIZE;
break;
default:
abort ();
}
+ link_order->u.data.size = link_order->size;
}
break;
rs = &statement->reloc_statement;
output_section = rs->output_section;
- ASSERT (output_section->owner == output_bfd);
+ ASSERT (output_section->owner == link_info.output_bfd);
+
+ if (!((output_section->flags & SEC_HAS_CONTENTS) != 0
+ || ((output_section->flags & SEC_LOAD) != 0
+ && (output_section->flags & SEC_THREAD_LOCAL))))
+ break;
- link_order = bfd_new_link_order (output_bfd, output_section);
+ link_order = bfd_new_link_order (link_info.output_bfd, output_section);
if (link_order == NULL)
- einfo (_("%P%F: bfd_new_link_order failed\n"));
+ einfo (_("%F%P: bfd_new_link_order failed\n"));
- link_order->offset = rs->output_vma;
+ link_order->offset = rs->output_offset;
link_order->size = bfd_get_reloc_size (rs->howto);
- link_order->u.reloc.p = xmalloc (sizeof (struct bfd_link_order_reloc));
+ link_order->u.reloc.p = (struct bfd_link_order_reloc *)
+ xmalloc (sizeof (struct bfd_link_order_reloc));
link_order->u.reloc.p->reloc = rs->reloc;
link_order->u.reloc.p->addend = rs->addend_value;
if (rs->name == NULL)
{
link_order->type = bfd_section_reloc_link_order;
- if (rs->section->owner == output_bfd)
+ if (rs->section->owner == link_info.output_bfd)
link_order->u.reloc.p->u.section = rs->section;
else
{
break;
case lang_input_section_enum:
- /* Create a new link_order in the output section with this
- attached */
- if (!statement->input_section.ifile->just_syms_flag)
- {
- asection *i = statement->input_section.section;
- asection *output_section = i->output_section;
+ {
+ /* Create a new link_order in the output section with this
+ attached */
+ asection *i = statement->input_section.section;
- ASSERT (output_section->owner == output_bfd);
+ if (i->sec_info_type != SEC_INFO_TYPE_JUST_SYMS
+ && (i->flags & SEC_EXCLUDE) == 0)
+ {
+ asection *output_section = i->output_section;
+ struct bfd_link_order *link_order;
- if ((output_section->flags & SEC_HAS_CONTENTS) != 0
- || ((output_section->flags & SEC_LOAD) != 0
- && (output_section->flags & SEC_THREAD_LOCAL)))
- {
- struct bfd_link_order *link_order;
+ ASSERT (output_section->owner == link_info.output_bfd);
- link_order = bfd_new_link_order (output_bfd, output_section);
+ if (!((output_section->flags & SEC_HAS_CONTENTS) != 0
+ || ((output_section->flags & SEC_LOAD) != 0
+ && (output_section->flags & SEC_THREAD_LOCAL))))
+ break;
- if (i->flags & SEC_NEVER_LOAD)
- {
- /* We've got a never load section inside one which
- is going to be output, we'll change it into a
- fill. */
- link_order->type = bfd_data_link_order;
- link_order->u.data.contents = "";
- link_order->u.data.size = 1;
- }
- else
- {
- link_order->type = bfd_indirect_link_order;
- link_order->u.indirect.section = i;
- ASSERT (i->output_section == output_section);
- }
- if (i->_cooked_size)
- link_order->size = i->_cooked_size;
- else
- link_order->size = bfd_get_section_size_before_reloc (i);
- link_order->offset = i->output_offset;
- }
- }
+ link_order = bfd_new_link_order (link_info.output_bfd,
+ output_section);
+ if (link_order == NULL)
+ einfo (_("%F%P: bfd_new_link_order failed\n"));
+
+ if ((i->flags & SEC_NEVER_LOAD) != 0
+ && (i->flags & SEC_DEBUGGING) == 0)
+ {
+ /* We've got a never load section inside one which is
+ going to be output, we'll change it into a fill. */
+ link_order->type = bfd_data_link_order;
+ link_order->u.data.contents = (unsigned char *) "";
+ link_order->u.data.size = 1;
+ }
+ else
+ {
+ link_order->type = bfd_indirect_link_order;
+ link_order->u.indirect.section = i;
+ ASSERT (i->output_section == output_section);
+ }
+ link_order->size = i->size;
+ link_order->offset = i->output_offset;
+ }
+ }
break;
case lang_padding_statement_enum:
output_section = statement->padding_statement.output_section;
ASSERT (statement->padding_statement.output_section->owner
- == output_bfd);
- if ((output_section->flags & SEC_HAS_CONTENTS) != 0)
- {
- link_order = bfd_new_link_order (output_bfd, output_section);
- link_order->type = bfd_data_link_order;
- link_order->size = statement->padding_statement.size;
- link_order->offset = statement->padding_statement.output_offset;
- link_order->u.data.contents = statement->padding_statement.fill->data;
- link_order->u.data.size = statement->padding_statement.fill->size;
- }
+ == link_info.output_bfd);
+
+ if (!((output_section->flags & SEC_HAS_CONTENTS) != 0
+ || ((output_section->flags & SEC_LOAD) != 0
+ && (output_section->flags & SEC_THREAD_LOCAL))))
+ break;
+
+ link_order = bfd_new_link_order (link_info.output_bfd,
+ output_section);
+ if (link_order == NULL)
+ einfo (_("%F%P: bfd_new_link_order failed\n"));
+ link_order->type = bfd_data_link_order;
+ link_order->size = statement->padding_statement.size;
+ link_order->offset = statement->padding_statement.output_offset;
+ link_order->u.data.contents = statement->padding_statement.fill->data;
+ link_order->u.data.size = statement->padding_statement.fill->size;
}
break;
}
}
+/* Return true if NAME is the name of an unsplittable section. These
+ are the stabs strings, dwarf strings. */
+
+static bfd_boolean
+unsplittable_name (const char *name)
+{
+ if (CONST_STRNEQ (name, ".stab"))
+ {
+ /* There are several stab like string sections. We pattern match on
+ ".stab...str" */
+ unsigned len = strlen (name);
+ if (strcmp (&name[len-3], "str") == 0)
+ return TRUE;
+ }
+ else if (strcmp (name, "$GDB_STRINGS$") == 0)
+ return TRUE;
+ return FALSE;
+}
+
/* Wander around the input sections, make sure that
we'll never try and create an output section with more relocs
than will fit.. Do this by always assuming the worst case, and
static asection *
clone_section (bfd *abfd, asection *s, const char *name, int *count)
{
- char templ[6];
+ char *tname;
char *sname;
+ unsigned int len;
asection *n;
struct bfd_link_hash_entry *h;
- /* Invent a section name from the first five chars of the base
- section name and a digit suffix. */
- strncpy (templ, name, sizeof (templ) - 1);
- templ[sizeof (templ) - 1] = '\0';
- if ((sname = bfd_get_unique_section_name (abfd, templ, count)) == NULL
+ /* Invent a section name from the section name and a dotted numeric
+ suffix. */
+ len = strlen (name);
+ tname = (char *) xmalloc (len + 1);
+ memcpy (tname, name, len + 1);
+ /* Remove a dotted number suffix, from a previous split link. */
+ while (len && ISDIGIT (tname[len-1]))
+ len--;
+ if (len > 1 && tname[len-1] == '.')
+ /* It was a dotted number. */
+ tname[len-1] = 0;
+
+ /* We want to use the whole of the original section name for the
+ split name, but coff can be restricted to 8 character names. */
+ if (bfd_family_coff (abfd) && strlen (tname) > 5)
+ {
+ /* Some section names cannot be truncated, as the name is
+ used to locate some other section. */
+ if (CONST_STRNEQ (name, ".stab")
+ || strcmp (name, "$GDB_SYMBOLS$") == 0)
+ {
+ einfo (_ ("%F%P: cannot create split section name for %s\n"), name);
+ /* Silence gcc warnings. einfo exits, so we never reach here. */
+ return NULL;
+ }
+ tname[5] = 0;
+ }
+
+ if ((sname = bfd_get_unique_section_name (abfd, tname, count)) == NULL
|| (n = bfd_make_section_anyway (abfd, sname)) == NULL
|| (h = bfd_link_hash_lookup (link_info.hash,
sname, TRUE, TRUE, FALSE)) == NULL)
/* Silence gcc warnings. einfo exits, so we never reach here. */
return NULL;
}
+ free (tname);
/* Set up section symbol. */
h->type = bfd_link_hash_defined;
n->vma = s->vma;
n->user_set_vma = s->user_set_vma;
n->lma = s->lma;
- n->_cooked_size = 0;
- n->_raw_size = 0;
+ n->size = 0;
n->output_offset = s->output_offset;
n->output_section = n;
n->orelocation = 0;
n->reloc_count = 0;
n->alignment_power = s->alignment_power;
+
+ bfd_copy_private_section_data (abfd, s, abfd, n);
+
return n;
}
static void
ds (asection *s)
{
- struct bfd_link_order *l = s->link_order_head;
- printf ("vma %x size %x\n", s->vma, s->_raw_size);
+ struct bfd_link_order *l = s->map_head.link_order;
+ printf ("vma %x size %x\n", s->vma, s->size);
while (l)
{
if (l->type == bfd_indirect_link_order)
- {
- printf ("%8x %s\n", l->offset, l->u.indirect.section->owner->filename);
- }
+ printf ("%8x %s\n", l->offset, l->u.indirect.section->owner->filename);
else
- {
- printf (_("%8x something else\n"), l->offset);
- }
+ printf (_("%8x something else\n"), l->offset);
l = l->next;
}
printf ("\n");
{
struct bfd_link_order *p;
bfd_vma prev = 0;
- for (p = s->link_order_head; p; p = p->next)
+ for (p = s->map_head.link_order; p; p = p->next)
{
if (p->offset > 100000)
abort ();
/* Count up the relocations and line entries to see if anything
would be too big to fit. Accumulate section size too. */
- for (l = NULL, p = cursor->link_order_head; p != NULL; p = l->next)
+ for (l = NULL, p = cursor->map_head.link_order; p != NULL; p = l->next)
{
unsigned int thislines = 0;
unsigned int thisrelocs = 0;
|| info->strip == strip_some)
thislines = sec->lineno_count;
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
thisrelocs = sec->reloc_count;
- if (sec->_cooked_size != 0)
- thissize = sec->_cooked_size;
- else
- thissize = sec->_raw_size;
+ thissize = sec->size;
}
- else if (info->relocatable
+ else if (bfd_link_relocatable (info)
&& (p->type == bfd_section_reloc_link_order
|| p->type == bfd_symbol_reloc_link_order))
thisrelocs++;
if (l != NULL
&& (thisrelocs + relocs >= config.split_by_reloc
|| thislines + lines >= config.split_by_reloc
- || thissize + sec_size >= config.split_by_file))
+ || (thissize + sec_size >= config.split_by_file))
+ && !unsplittable_name (cursor->name))
{
/* Create a new section and put this link order and the
following link orders into it. */
/* Attach the link orders to the new section and snip
them off from the old section. */
- n->link_order_head = p;
- n->link_order_tail = cursor->link_order_tail;
- cursor->link_order_tail = l;
+ n->map_head.link_order = p;
+ n->map_tail.link_order = cursor->map_tail.link_order;
+ cursor->map_tail.link_order = l;
l->next = NULL;
l = p;
dump ("before snip", cursor, n);
shift_offset = p->offset;
- if (cursor->_cooked_size != 0)
- {
- n->_cooked_size = cursor->_cooked_size - shift_offset;
- cursor->_cooked_size = shift_offset;
- }
- n->_raw_size = cursor->_raw_size - shift_offset;
- cursor->_raw_size = shift_offset;
+ n->size = cursor->size - shift_offset;
+ cursor->size = shift_offset;
vma += shift_offset;
n->lma = n->vma = vma;
/* Reset error indicator, which can typically something like invalid
format from opening up the .o files. */
bfd_set_error (bfd_error_no_error);
+ lang_clear_os_map ();
lang_for_each_statement (build_link_order);
if (config.split_by_reloc != (unsigned) -1
|| config.split_by_file != (bfd_size_type) -1)
- split_sections (output_bfd, &link_info);
- if (!bfd_final_link (output_bfd, &link_info))
+ split_sections (link_info.output_bfd, &link_info);
+ if (!bfd_final_link (link_info.output_bfd, &link_info))
{
/* If there was an error recorded, print it out. Otherwise assume
an appropriate error message like unknown symbol was printed
projects / thirdparty / binutils-gdb.git / blobdiff