/* ldwrite.c -- write out the linked file
- Copyright (C) 1993 Free Software Foundation, Inc.
+ Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000, 2002
+ Free Software Foundation, Inc.
Written by Steve Chamberlain sac@cygnus.com
This file is part of GLD, the Gnu Linker.
#include "bfd.h"
#include "sysdep.h"
#include "bfdlink.h"
+#include "libiberty.h"
#include "ld.h"
#include "ldexp.h"
#include "ldlang.h"
#include "ldwrite.h"
#include "ldmisc.h"
-#include "ldgram.h"
+#include <ldgram.h>
#include "ldmain.h"
static void build_link_order PARAMS ((lang_statement_union_type *));
-static void print_symbol_table PARAMS ((void));
-static void print_file_stuff PARAMS ((lang_input_statement_type *));
-static boolean print_symbol PARAMS ((struct bfd_link_hash_entry *, PTR));
-
-extern char *strdup();
+static asection *clone_section PARAMS ((bfd *, asection *, const char *, int *));
+static void split_sections PARAMS ((bfd *, struct bfd_link_info *));
/* Build link_order structures for the BFD linker. */
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);
link_order = bfd_new_link_order (output_bfd, output_section);
if (link_order == NULL)
- einfo ("%P%F: bfd_new_link_order failed\n");
+ einfo (_("%P%F: bfd_new_link_order failed\n"));
link_order->type = bfd_data_link_order;
link_order->offset = statement->data_statement.output_vma;
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)
- && ! bfd_little_endian (output_bfd))
+ if (bfd_big_endian (output_bfd))
+ big_endian = TRUE;
+ else if (bfd_little_endian (output_bfd))
+ big_endian = FALSE;
+ else
{
- boolean swap;
+ bfd_boolean swap;
- swap = false;
- if (command_line.endian == ENDIAN_LITTLE)
- swap = true;
+ 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)
{
- LANG_FOR_EACH_INPUT_STATEMENT (s)
- {
- if (s->the_bfd != NULL)
- {
- if (bfd_little_endian (s->the_bfd))
- swap = true;
- break;
- }
- }
+ 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;
+ }
+ }
+ }
}
if (swap)
switch (statement->data_statement.type)
{
case QUAD:
- bfd_putl64 (value, buffer);
- value = bfd_getb64 (buffer);
- break;
+ 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);
switch (statement->data_statement.type)
{
case QUAD:
- bfd_put_64 (output_bfd, value, link_order->u.data.contents);
+ case SQUAD:
+ if (sizeof (bfd_vma) >= QUAD_SIZE)
+ bfd_put_64 (output_bfd, value, link_order->u.data.contents);
+ else
+ {
+ bfd_vma high;
+
+ if (statement->data_statement.type == QUAD)
+ high = 0;
+ else if ((value & 0x80000000) == 0)
+ high = 0;
+ else
+ high = (bfd_vma) -1;
+ bfd_put_32 (output_bfd, high,
+ (link_order->u.data.contents
+ + (big_endian ? 0 : 4)));
+ bfd_put_32 (output_bfd, value,
+ (link_order->u.data.contents
+ + (big_endian ? 4 : 0)));
+ }
link_order->size = QUAD_SIZE;
break;
case LONG:
link_order = bfd_new_link_order (output_bfd, output_section);
if (link_order == NULL)
- einfo ("%P%F: bfd_new_link_order failed\n");
+ einfo (_("%P%F: bfd_new_link_order failed\n"));
link_order->offset = rs->output_vma;
link_order->size = bfd_get_reloc_size (rs->howto);
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 == false)
+ if (!statement->input_section.ifile->just_syms_flag)
{
asection *i = statement->input_section.section;
asection *output_section = i->output_section;
ASSERT (output_section->owner == output_bfd);
- if ((output_section->flags & SEC_HAS_CONTENTS) != 0)
+ 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;
{
/* We've got a never load section inside one which
is going to be output, we'll change it into a
- fill link_order */
- link_order->type = bfd_fill_link_order;
- link_order->u.fill.value = 0;
+ fill. */
+ link_order->type = bfd_data_link_order;
+ link_order->u.data.contents = "";
+ link_order->u.data.size = 1;
}
else
{
if ((output_section->flags & SEC_HAS_CONTENTS) != 0)
{
link_order = bfd_new_link_order (output_bfd, output_section);
- link_order->type = bfd_fill_link_order;
+ 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.fill.value = statement->padding_statement.fill;
+ link_order->u.data.contents = statement->padding_statement.fill->data;
+ link_order->u.data.size = statement->padding_statement.fill->size;
}
}
break;
/* Call BFD to write out the linked file. */
-
/**********************************************************************/
-
/* 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
- creating new output sections with all the right bits */
+ creating new output sections with all the right bits. */
#define TESTIT 1
static asection *
-clone_section (abfd, s, count)
+clone_section (abfd, s, name, count)
bfd *abfd;
asection *s;
+ const char *name;
int *count;
{
-#define SSIZE 8
- char sname[SSIZE]; /* ?? find the name for this size */
+ char templ[6];
+ char *sname;
asection *n;
struct bfd_link_hash_entry *h;
- /* Invent a section name - use first five
- chars of base section name and a digit suffix */
- do
+
+ /* 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
+ || (n = bfd_make_section_anyway (abfd, sname)) == NULL
+ || (h = bfd_link_hash_lookup (link_info.hash,
+ sname, TRUE, TRUE, FALSE)) == NULL)
{
- unsigned int i;
- char b[6];
- for (i = 0; i < sizeof (b) - 1 && s->name[i]; i++)
- b[i] = s->name[i];
- b[i] = 0;
- sprintf (sname, "%s%d", b, (*count)++);
+ einfo (_("%F%P: clone section failed: %E\n"));
+ /* Silence gcc warnings. einfo exits, so we never reach here. */
+ return NULL;
}
- while (bfd_get_section_by_name (abfd, sname));
- n = bfd_make_section_anyway (abfd, strdup (sname));
-
- /* Create a symbol of the same name */
-
- h = bfd_link_hash_lookup (link_info.hash,
- sname, true, true, false);
+ /* Set up section symbol. */
h->type = bfd_link_hash_defined;
h->u.def.value = 0;
- h->u.def.section = n ;
-
+ h->u.def.section = n;
n->flags = s->flags;
n->vma = s->vma;
}
#if TESTING
-static void
+static void
ds (s)
asection *s;
{
}
else
{
- printf ("%8x something else\n", l->offset);
+ printf (_("%8x something else\n"), l->offset);
}
l = l->next;
}
printf ("\n");
}
+
dump (s, a1, a2)
char *s;
asection *a1;
ds (a2);
}
-static void
+static void
sanity_check (abfd)
bfd *abfd;
{
#define dump(a, b, c)
#endif
-
-void
+static void
split_sections (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
asection *original_sec;
int nsecs = abfd->section_count;
sanity_check (abfd);
- /* look through all the original sections */
+ /* Look through all the original sections. */
for (original_sec = abfd->sections;
original_sec && nsecs;
original_sec = original_sec->next, nsecs--)
{
- boolean first = true;
int count = 0;
- int lines = 0;
- int relocs = 0;
- struct bfd_link_order **pp;
+ unsigned int lines = 0;
+ unsigned int relocs = 0;
+ bfd_size_type sec_size = 0;
+ struct bfd_link_order *l;
+ struct bfd_link_order *p;
bfd_vma vma = original_sec->vma;
- bfd_vma shift_offset = 0;
asection *cursor = original_sec;
- /* count up the relocations and line entries to see if
- anything would be too big to fit */
- for (pp = &(cursor->link_order_head); *pp; pp = &((*pp)->next))
+ /* 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)
{
- struct bfd_link_order *p = *pp;
- int thislines = 0;
- int thisrelocs = 0;
+ unsigned int thislines = 0;
+ unsigned int thisrelocs = 0;
+ bfd_size_type thissize = 0;
if (p->type == bfd_indirect_link_order)
{
asection *sec;
if (info->relocateable)
thisrelocs = sec->reloc_count;
+ if (sec->_cooked_size != 0)
+ thissize = sec->_cooked_size;
+ else
+ thissize = sec->_raw_size;
+
}
else if (info->relocateable
&& (p->type == bfd_section_reloc_link_order
|| p->type == bfd_symbol_reloc_link_order))
thisrelocs++;
- if (! first
- && (thisrelocs + relocs > config.split_by_reloc
- || thislines + lines > config.split_by_reloc
- || config.split_by_file))
+ if (l != NULL
+ && (thisrelocs + relocs >= config.split_by_reloc
+ || thislines + lines >= config.split_by_reloc
+ || thissize + sec_size >= config.split_by_file))
{
- /* create a new section and put this link order and the
- following link orders into it */
- struct bfd_link_order *l = p;
- asection *n = clone_section (abfd, cursor, &count);
- *pp = NULL; /* Snip off link orders from old section */
- n->link_order_head = l; /* attach to new section */
- pp = &n->link_order_head;
+ /* Create a new section and put this link order and the
+ following link orders into it. */
+ bfd_vma shift_offset;
+ asection *n;
- /* change the size of the original section and
- update the vma of the new one */
+ n = clone_section (abfd, cursor, original_sec->name, &count);
- dump ("before snip", cursor, n);
+ /* 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;
+ l->next = NULL;
+ l = p;
- n->_raw_size = cursor->_raw_size - l->offset;
- cursor->_raw_size = l->offset;
+ /* Change the size of the original section and
+ update the vma of the new one. */
- vma += cursor->_raw_size;
- n->lma = n->vma = vma;
+ dump ("before snip", cursor, n);
- shift_offset = l->offset;
+ 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;
- /* run down the chain and change the output section to
- the right one, update the offsets too */
+ vma += shift_offset;
+ n->lma = n->vma = vma;
- while (l)
+ /* Run down the chain and change the output section to
+ the right one, update the offsets too. */
+ do
{
- l->offset -= shift_offset;
- if (l->type == bfd_indirect_link_order)
+ p->offset -= shift_offset;
+ if (p->type == bfd_indirect_link_order)
{
- l->u.indirect.section->output_section = n;
- l->u.indirect.section->output_offset = l->offset;
+ p->u.indirect.section->output_section = n;
+ p->u.indirect.section->output_offset = p->offset;
}
- l = l->next;
+ p = p->next;
}
+ while (p);
+
dump ("after snip", cursor, n);
cursor = n;
relocs = thisrelocs;
lines = thislines;
+ sec_size = thissize;
}
else
{
+ l = p;
relocs += thisrelocs;
lines += thislines;
+ sec_size += thissize;
}
-
- first = false;
}
}
sanity_check (abfd);
}
+
/**********************************************************************/
+
void
ldwrite ()
{
/* Reset error indicator, which can typically something like invalid
- format from openning up the .o files */
+ format from opening up the .o files. */
bfd_set_error (bfd_error_no_error);
lang_for_each_statement (build_link_order);
- if (config.split_by_reloc || config.split_by_file)
+ 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))
{
out. */
if (bfd_get_error () != bfd_error_no_error)
- einfo ("%F%P: final link failed: %E\n", output_bfd);
- else
- xexit(1);
- }
-
- if (config.map_file)
- {
- print_symbol_table ();
- lang_map ();
- }
-}
-
-/* Print the symbol table. */
-
-static void
-print_symbol_table ()
-{
- fprintf (config.map_file, "\n**FILES**\n\n");
- lang_for_each_file (print_file_stuff);
-
- fprintf (config.map_file, "**GLOBAL SYMBOLS**\n\n");
- fprintf (config.map_file, "offset section offset symbol\n");
- bfd_link_hash_traverse (link_info.hash, print_symbol, (PTR) NULL);
-}
-
-/* Print information about a file. */
-
-static void
-print_file_stuff (f)
- lang_input_statement_type *f;
-{
- fprintf (config.map_file, " %s\n", f->filename);
- if (f->just_syms_flag)
- {
- fprintf (config.map_file, " symbols only\n");
- }
- else
- {
- asection *s;
- if (true)
- {
- for (s = f->the_bfd->sections;
- s != (asection *) NULL;
- s = s->next)
- {
-#ifdef WINDOWS_NT
- /* Don't include any information that goes into the '.junk'
- section. This includes the code view .debug$ data and
- stuff from .drectve sections */
- if (strcmp (s->name, ".drectve") == 0 ||
- strncmp (s->name, ".debug$", 7) == 0)
- continue;
-#endif
- print_address (s->output_offset);
- if (s->reloc_done)
- {
- fprintf (config.map_file, " %08x 2**%2ud %s\n",
- (unsigned) bfd_get_section_size_after_reloc (s),
- s->alignment_power, s->name);
- }
-
- else
- {
- fprintf (config.map_file, " %08x 2**%2ud %s\n",
- (unsigned) bfd_get_section_size_before_reloc (s),
- s->alignment_power, s->name);
- }
- }
- }
+ einfo (_("%F%P: final link failed: %E\n"));
else
- {
- for (s = f->the_bfd->sections;
- s != (asection *) NULL;
- s = s->next)
- {
- fprintf (config.map_file, "%s ", s->name);
- print_address (s->output_offset);
- fprintf (config.map_file, "(%x)",
- (unsigned) bfd_get_section_size_after_reloc (s));
- }
- fprintf (config.map_file, "hex \n");
- }
+ xexit (1);
}
- print_nl ();
-}
-
-/* Print a symbol. */
-
-/*ARGSUSED*/
-static boolean
-print_symbol (p, ignore)
- struct bfd_link_hash_entry *p;
- PTR ignore;
-{
- while (p->type == bfd_link_hash_indirect
- || p->type == bfd_link_hash_warning)
- p = p->u.i.link;
-
- switch (p->type)
- {
- case bfd_link_hash_new:
- abort ();
-
- case bfd_link_hash_undefined:
- fprintf (config.map_file, "undefined ");
- fprintf (config.map_file, "%s ", p->root.string);
- print_nl ();
- break;
-
- case bfd_link_hash_undefweak:
- fprintf (config.map_file, "weak ");
- fprintf (config.map_file, "%s ", p->root.string);
- print_nl ();
- break;
-
- case bfd_link_hash_defined:
- case bfd_link_hash_defweak:
- {
- asection *defsec = p->u.def.section;
-
- print_address (p->u.def.value);
- if (defsec)
- {
- fprintf (config.map_file, " %-10s",
- bfd_section_name (output_bfd, defsec));
- print_space ();
- print_address (p->u.def.value + defsec->vma);
- }
- else
- {
- fprintf (config.map_file, " .......");
- }
- fprintf (config.map_file, " %s", p->root.string);
- if (p->type == bfd_link_hash_defweak)
- fprintf (config.map_file, " [weak]");
- }
- print_nl ();
- break;
-
- case bfd_link_hash_common:
- fprintf (config.map_file, "common ");
- print_address (p->u.c.size);
- fprintf (config.map_file, " %s ", p->root.string);
- print_nl ();
- break;
-
- default:
- abort ();
- }
-
- return true;
}
projects / binutils-gdb.git / blobdiff