/* SEC_MERGE support.
- Copyright 2001 Free Software Foundation, Inc.
+ Copyright 2001, 2002 Free Software Foundation, Inc.
Written by Jakub Jelinek <jakub@redhat.com>.
-This file is part of BFD, the Binary File Descriptor library.
+ This file is part of BFD, the Binary File Descriptor library.
-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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* This file contains support for merging duplicate entities within sections,
as used in ELF SHF_MERGE. */
#include "sysdep.h"
#include "libbfd.h"
#include "hashtab.h"
-
-#include <ctype.h>
+#include "libiberty.h"
struct sec_merge_sec_info;
/* Start of this string needs to be aligned to
alignment octets (not 1 << align). */
unsigned int alignment;
- union {
+ union
+ {
/* Index within the merged section. */
bfd_size_type index;
/* Entity size (if present in suffix hash tables). */
/* Entity size. */
unsigned int entsize;
/* Are entries fixed size or zero terminated strings? */
- boolean strings;
+ bfd_boolean strings;
};
struct sec_merge_info
static struct bfd_hash_entry *sec_merge_hash_newfunc
PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
static struct sec_merge_hash_entry *sec_merge_hash_lookup
- PARAMS ((struct sec_merge_hash *, const char *, unsigned int, boolean));
+ PARAMS ((struct sec_merge_hash *, const char *, unsigned int, bfd_boolean));
static struct sec_merge_hash *sec_merge_init
- PARAMS ((unsigned int, boolean));
+ PARAMS ((unsigned int, bfd_boolean));
static struct sec_merge_hash_entry *sec_merge_add
PARAMS ((struct sec_merge_hash *, const char *, unsigned int,
struct sec_merge_sec_info *));
-static boolean sec_merge_emit
+static bfd_boolean sec_merge_emit
PARAMS ((bfd *, struct sec_merge_hash_entry *));
+static int cmplengthentry
+ PARAMS ((const PTR, const PTR));
+static int last4_eq
+ PARAMS ((const PTR, const PTR));
+static int last_eq
+ PARAMS ((const PTR, const PTR));
+static bfd_boolean record_section
+ PARAMS ((struct sec_merge_info *, struct sec_merge_sec_info *));
+static void merge_strings
+ PARAMS ((struct sec_merge_info *));
/* Routine to create an entry in a section merge hashtab. */
ret->next = NULL;
}
- return (struct bfd_hash_entry *)ret;
+ return (struct bfd_hash_entry *) ret;
}
/* Look up an entry in a section merge hash table. */
struct sec_merge_hash *table;
const char *string;
unsigned int alignment;
- boolean create;
+ bfd_boolean create;
{
register const unsigned char *s;
register unsigned long hash;
}
hash ^= hash >> 2;
len += table->entsize;
- }
+ }
else
{
for (i = 0; i < table->entsize; ++i)
static struct sec_merge_hash *
sec_merge_init (entsize, strings)
unsigned int entsize;
- boolean strings;
+ bfd_boolean strings;
{
struct sec_merge_hash *table;
+ bfd_size_type amt = sizeof (struct sec_merge_hash);
- table = ((struct sec_merge_hash *)
- bfd_malloc (sizeof (struct sec_merge_hash)));
+ table = (struct sec_merge_hash *) bfd_malloc (amt);
if (table == NULL)
return NULL;
{
register struct sec_merge_hash_entry *entry;
- entry = sec_merge_hash_lookup (tab, str, alignment, true);
+ entry = sec_merge_hash_lookup (tab, str, alignment, TRUE);
if (entry == NULL)
return NULL;
return entry;
}
-static boolean
+static bfd_boolean
sec_merge_emit (abfd, entry)
register bfd *abfd;
struct sec_merge_hash_entry *entry;
int alignment_power = bfd_get_section_alignment (abfd, sec->output_section);
if (alignment_power)
- pad = bfd_zmalloc (1 << alignment_power);
+ pad = bfd_zmalloc ((bfd_size_type) 1 << alignment_power);
for (; entry != NULL && entry->secinfo == secinfo; entry = entry->next)
{
if (len)
{
len = entry->alignment - len;
- if (bfd_write ((PTR) pad, 1, len, abfd) != len)
+ if (bfd_bwrite ((PTR) pad, (bfd_size_type) len, abfd) != len)
break;
off += len;
}
str = entry->root.string;
len = entry->len;
- if (bfd_write ((PTR) str, 1, len, abfd) != len)
+ if (bfd_bwrite ((PTR) str, (bfd_size_type) len, abfd) != len)
break;
off += len;
/* This function is called for each input file from the add_symbols
pass of the linker. */
-boolean
+bfd_boolean
_bfd_merge_section (abfd, psinfo, sec, psecinfo)
bfd *abfd;
PTR *psinfo;
struct sec_merge_info *sinfo;
struct sec_merge_sec_info *secinfo;
unsigned int align;
+ bfd_size_type amt;
if (sec->_raw_size == 0
|| (sec->flags & SEC_EXCLUDE)
|| (sec->flags & SEC_MERGE) == 0
|| sec->entsize == 0)
- return true;
+ return TRUE;
if ((sec->flags & SEC_RELOC) != 0)
{
/* We aren't prepared to handle relocations in merged sections. */
- return true;
- }
-
- if (sec->output_section != NULL
- && bfd_is_abs_section (sec->output_section))
- {
- /* The section is being discarded from the link, so we should
- just ignore it. */
- return true;
+ return TRUE;
}
align = bfd_get_section_alignment (sec->owner, sec);
of alignment. For non-string constants, alignment must
be smaller than or equal to entity size and entity size
must be integer multiple of alignment. */
- return true;
+ return TRUE;
}
for (sinfo = (struct sec_merge_info *) *psinfo; sinfo; sinfo = sinfo->next)
if (sinfo == NULL)
{
/* Initialize the information we need to keep track of. */
- sinfo = (struct sec_merge_info *)
- bfd_alloc (abfd, sizeof (struct sec_merge_info));
+ amt = sizeof (struct sec_merge_info);
+ sinfo = (struct sec_merge_info *) bfd_alloc (abfd, amt);
if (sinfo == NULL)
goto error_return;
sinfo->next = (struct sec_merge_info *) *psinfo;
sinfo->chain = NULL;
*psinfo = (PTR) sinfo;
- sinfo->htab =
- sec_merge_init (sec->entsize, (sec->flags & SEC_STRINGS));
+ sinfo->htab = sec_merge_init (sec->entsize, (sec->flags & SEC_STRINGS));
if (sinfo->htab == NULL)
goto error_return;
}
/* Read the section from abfd. */
- *psecinfo = bfd_alloc (abfd, sizeof (struct sec_merge_sec_info)
- + sec->_raw_size - 1);
+ amt = sizeof (struct sec_merge_sec_info) + sec->_raw_size - 1;
+ *psecinfo = bfd_alloc (abfd, amt);
if (*psecinfo == NULL)
goto error_return;
secinfo->htab = sinfo->htab;
secinfo->first = NULL;
- if (! bfd_get_section_contents (sec->owner, sec, secinfo->contents, 0,
- sec->_raw_size))
+ if (! bfd_get_section_contents (sec->owner, sec, secinfo->contents,
+ (bfd_vma) 0, sec->_raw_size))
goto error_return;
- return true;
+ return TRUE;
error_return:
*psecinfo = NULL;
- return false;
+ return FALSE;
}
/* Compare two sec_merge_hash_entry structures. This is called via qsort. */
{
struct sec_merge_hash_entry * A = *(struct sec_merge_hash_entry **) a;
struct sec_merge_hash_entry * B = *(struct sec_merge_hash_entry **) b;
-
+
if (A->len < B->len)
return 1;
else if (A->len > B->len)
static int
last4_eq (a, b)
- const void *a, *b;
+ const PTR a;
+ const PTR b;
{
struct sec_merge_hash_entry * A = (struct sec_merge_hash_entry *) a;
struct sec_merge_hash_entry * B = (struct sec_merge_hash_entry *) b;
static int
last_eq (a, b)
- const void *a, *b;
+ const PTR a;
+ const PTR b;
{
struct sec_merge_hash_entry * A = (struct sec_merge_hash_entry *) a;
struct sec_merge_hash_entry * B = (struct sec_merge_hash_entry *) b;
}
/* Record one section into the hash table. */
-static boolean
+static bfd_boolean
record_section (sinfo, secinfo)
struct sec_merge_info *sinfo;
struct sec_merge_sec_info *secinfo;
{
asection *sec = secinfo->sec;
struct sec_merge_hash_entry *entry;
- boolean nul;
+ bfd_boolean nul;
unsigned char *p, *end;
bfd_vma mask, eltalign;
unsigned int align, i;
align = bfd_get_section_alignment (sec->owner, sec);
end = secinfo->contents + sec->_raw_size;
- nul = false;
- mask = ((bfd_vma)1 << align) - 1;
+ nul = FALSE;
+ mask = ((bfd_vma) 1 << align) - 1;
if (sec->flags & SEC_STRINGS)
{
- for (p = secinfo->contents; p < end;)
+ for (p = secinfo->contents; p < end; )
{
eltalign = p - secinfo->contents;
eltalign = ((eltalign ^ (eltalign - 1)) + 1) >> 1;
if (!eltalign || eltalign > mask)
eltalign = mask + 1;
- entry = sec_merge_add (sinfo->htab, p, eltalign, secinfo);
+ entry = sec_merge_add (sinfo->htab, p, (unsigned) eltalign, secinfo);
if (! entry)
goto error_return;
p += entry->len;
{
if (!nul && !((p - secinfo->contents) & mask))
{
- nul = true;
- entry = sec_merge_add (sinfo->htab, "", mask + 1,
- secinfo);
+ nul = TRUE;
+ entry = sec_merge_add (sinfo->htab, "",
+ (unsigned) mask + 1, secinfo);
if (! entry)
goto error_return;
}
break;
if (!nul && !((p - secinfo->contents) & mask))
{
- nul = true;
- entry = sec_merge_add (sinfo->htab, p, mask + 1,
- secinfo);
+ nul = TRUE;
+ entry = sec_merge_add (sinfo->htab, p,
+ (unsigned) mask + 1, secinfo);
if (! entry)
goto error_return;
}
}
}
- return true;
+ return TRUE;
error_return:
for (secinfo = sinfo->chain; secinfo; secinfo = secinfo->next)
*secinfo->psecinfo = NULL;
- return false;
+ return FALSE;
}
/* This is a helper function for _bfd_merge_sections. It attempts to
struct sec_merge_hash_entry **array, **a, **end, *e;
struct sec_merge_sec_info *secinfo;
htab_t lasttab = NULL, last4tab = NULL;
- bfd_size_type size;
+ bfd_size_type size, amt;
/* Now sort the strings by length, longest first. */
- array = (struct sec_merge_hash_entry **)
- malloc (sinfo->htab->size
- * sizeof (struct sec_merge_hash_entry *));
+ array = NULL;
+ amt = sinfo->htab->size * sizeof (struct sec_merge_hash_entry *);
+ array = (struct sec_merge_hash_entry **) bfd_malloc (amt);
if (array == NULL)
goto alloc_failure;
sinfo->htab->size = a - array;
- qsort (array, sinfo->htab->size, sizeof (struct sec_merge_hash_entry *),
- cmplengthentry);
+ qsort (array, (size_t) sinfo->htab->size,
+ sizeof (struct sec_merge_hash_entry *), cmplengthentry);
- last4tab = htab_create (sinfo->htab->size * 4, NULL, last4_eq, NULL);
- lasttab = htab_create (sinfo->htab->size * 4, NULL, last_eq, NULL);
+ last4tab = htab_create_alloc ((size_t) sinfo->htab->size * 4,
+ NULL, last4_eq, NULL, calloc, free);
+ lasttab = htab_create_alloc ((size_t) sinfo->htab->size * 4,
+ NULL, last_eq, NULL, calloc, free);
if (lasttab == NULL || last4tab == NULL)
goto alloc_failure;
break;
if (e->len > 4 * e->u.entsize)
{
- s = e->root.string + e->len - e->u.entsize;
+ s = (const unsigned char *) (e->root.string + e->len - e->u.entsize);
hash = 0;
for (i = 0; i < 4 * e->u.entsize; i++)
{
else
*p = (PTR) e;
}
- s = e->root.string + e->len - e->u.entsize;
+ s = (const unsigned char *) (e->root.string + e->len - e->u.entsize);
hash = 0;
for (i = 0; i < e->u.entsize; i++)
{
/* This function is called once after all SEC_MERGE sections are registered
with _bfd_merge_section. */
-boolean
-_bfd_merge_sections (abfd, xsinfo)
+bfd_boolean
+_bfd_merge_sections (abfd, xsinfo, remove_hook)
bfd *abfd ATTRIBUTE_UNUSED;
PTR xsinfo;
+ void (*remove_hook) PARAMS((bfd *, asection *));
{
struct sec_merge_info *sinfo;
/* Record the sections into the hash table. */
for (secinfo = sinfo->chain; secinfo; secinfo = secinfo->next)
if (secinfo->sec->flags & SEC_EXCLUDE)
- *secinfo->psecinfo = NULL;
+ {
+ *secinfo->psecinfo = NULL;
+ if (remove_hook)
+ (*remove_hook) (abfd, secinfo->sec);
+ }
else if (! record_section (sinfo, secinfo))
break;
if (secinfo)
continue;
+ if (sinfo->htab->first == NULL)
+ continue;
+
if (sinfo->htab->strings)
merge_strings (sinfo);
else
the hash table at all. */
for (secinfo = sinfo->chain; secinfo; secinfo = secinfo->next)
if (secinfo->first == NULL)
- {
- secinfo->sec->_cooked_size = 0;
- secinfo->sec->flags |= SEC_EXCLUDE;
- }
+ secinfo->sec->_cooked_size = 0;
}
- return true;
+ return TRUE;
}
/* Write out the merged section. */
-boolean
+bfd_boolean
_bfd_write_merged_section (output_bfd, sec, psecinfo)
bfd *output_bfd;
asection *sec;
PTR psecinfo;
{
struct sec_merge_sec_info *secinfo;
+ file_ptr pos;
secinfo = (struct sec_merge_sec_info *) psecinfo;
if (!secinfo->first)
- return true;
+ return TRUE;
- if (bfd_seek (output_bfd,
- (sec->output_section->filepos + sec->output_offset),
- SEEK_SET) != 0)
- return false;
+ pos = sec->output_section->filepos + sec->output_offset;
+ if (bfd_seek (output_bfd, pos, SEEK_SET) != 0)
+ return FALSE;
if (! sec_merge_emit (output_bfd, secinfo->first))
- return false;
+ return FALSE;
- return true;
+ return TRUE;
}
/* Adjust an address in the SEC_MERGE section. Given OFFSET within
if (offset + addend >= sec->_raw_size)
{
if (offset + addend > sec->_raw_size)
- (*_bfd_error_handler) (_("%s: access beyond end of merged section (%ld + %ld)"),
- bfd_get_filename (sec->owner), (long)offset,
- (long) addend);
+ {
+ (*_bfd_error_handler)
+ (_("%s: access beyond end of merged section (%ld + %ld)"),
+ bfd_get_filename (sec->owner), (long) offset, (long) addend);
+ }
return (secinfo->first ? sec->_cooked_size : 0);
}
if (sec->entsize == 1)
{
p = secinfo->contents + offset + addend - 1;
- while (*p && p >= secinfo->contents)
+ while (p >= secinfo->contents && *p)
--p;
++p;
}
p = secinfo->contents
+ ((offset + addend) / sec->entsize) * sec->entsize;
}
- entry = sec_merge_hash_lookup (secinfo->htab, p, 0, false);
+ entry = sec_merge_hash_lookup (secinfo->htab, p, 0, FALSE);
if (!entry)
{
if (! secinfo->htab->strings)
projects / binutils-gdb.git / blobdiff