/* Assorted BFD support routines, only used internally.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004
+ 2000, 2001, 2002, 2003, 2004, 2005, 2007
Free Software Foundation, Inc.
Written by Cygnus Support.
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
+ 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,
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. */
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
#ifndef HAVE_GETPAGESIZE
/*
SECTION
+ Implementation details
+
+SUBSECTION
Internal functions
DESCRIPTION
{
}
+long
+_bfd_norelocs_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec ATTRIBUTE_UNUSED)
+{
+ return sizeof (arelent *);
+}
+
+long
+_bfd_norelocs_canonicalize_reloc (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec ATTRIBUTE_UNUSED,
+ arelent **relptr,
+ asymbol **symbols ATTRIBUTE_UNUSED)
+{
+ *relptr = NULL;
+ return 0;
+}
+
bfd_boolean
_bfd_nocore_core_file_matches_executable_p
(bfd *ignore_core_bfd ATTRIBUTE_UNUSED,
return ptr;
}
+/* Allocate memory using malloc, nmemb * size with overflow checking. */
+
+void *
+bfd_malloc2 (bfd_size_type nmemb, bfd_size_type size)
+{
+ void *ptr;
+
+ if ((nmemb | size) >= HALF_BFD_SIZE_TYPE
+ && size != 0
+ && nmemb > ~(bfd_size_type) 0 / size)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
+ }
+
+ size *= nmemb;
+
+ if (size != (size_t) size)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
+ }
+
+ ptr = malloc ((size_t) size);
+ if (ptr == NULL && (size_t) size != 0)
+ bfd_set_error (bfd_error_no_memory);
+
+ return ptr;
+}
+
/* Reallocate memory using realloc. */
void *
return ret;
}
+/* Reallocate memory using realloc, nmemb * size with overflow checking. */
+
+void *
+bfd_realloc2 (void *ptr, bfd_size_type nmemb, bfd_size_type size)
+{
+ void *ret;
+
+ if ((nmemb | size) >= HALF_BFD_SIZE_TYPE
+ && size != 0
+ && nmemb > ~(bfd_size_type) 0 / size)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
+ }
+
+ size *= nmemb;
+
+ if (size != (size_t) size)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
+ }
+
+ if (ptr == NULL)
+ ret = malloc ((size_t) size);
+ else
+ ret = realloc (ptr, (size_t) size);
+
+ if (ret == NULL && (size_t) size != 0)
+ bfd_set_error (bfd_error_no_memory);
+
+ return ret;
+}
+
/* Allocate memory using malloc and clear it. */
void *
return ptr;
}
+
+/* Allocate memory using malloc (nmemb * size) with overflow checking
+ and clear it. */
+
+void *
+bfd_zmalloc2 (bfd_size_type nmemb, bfd_size_type size)
+{
+ void *ptr;
+
+ if ((nmemb | size) >= HALF_BFD_SIZE_TYPE
+ && size != 0
+ && nmemb > ~(bfd_size_type) 0 / size)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
+ }
+
+ size *= nmemb;
+
+ if (size != (size_t) size)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
+ }
+
+ ptr = malloc ((size_t) size);
+
+ if ((size_t) size != 0)
+ {
+ if (ptr == NULL)
+ bfd_set_error (bfd_error_no_memory);
+ else
+ memset (ptr, 0, (size_t) size);
+ }
+
+ return ptr;
+}
+
/*
INTERNAL_FUNCTION
bfd_write_bigendian_4byte_int
/* Sign extension to bfd_signed_vma. */
#define COERCE16(x) (((bfd_signed_vma) (x) ^ 0x8000) - 0x8000)
#define COERCE32(x) (((bfd_signed_vma) (x) ^ 0x80000000) - 0x80000000)
-#define EIGHT_GAZILLION ((BFD_HOST_64_BIT) 1 << 63)
+#define EIGHT_GAZILLION ((bfd_int64_t) 1 << 63)
#define COERCE64(x) \
- (((bfd_signed_vma) (x) ^ EIGHT_GAZILLION) - EIGHT_GAZILLION)
+ (((bfd_int64_t) (x) ^ EIGHT_GAZILLION) - EIGHT_GAZILLION)
bfd_vma
bfd_getb16 (const void *p)
return COERCE32 (v);
}
-bfd_vma
+bfd_uint64_t
bfd_getb64 (const void *p ATTRIBUTE_UNUSED)
{
-#ifdef BFD64
+#ifdef BFD_HOST_64_BIT
const bfd_byte *addr = p;
- bfd_vma v;
+ bfd_uint64_t v;
v = addr[0]; v <<= 8;
v |= addr[1]; v <<= 8;
#endif
}
-bfd_vma
+bfd_uint64_t
bfd_getl64 (const void *p ATTRIBUTE_UNUSED)
{
-#ifdef BFD64
+#ifdef BFD_HOST_64_BIT
const bfd_byte *addr = p;
- bfd_vma v;
+ bfd_uint64_t v;
v = addr[7]; v <<= 8;
v |= addr[6]; v <<= 8;
}
-bfd_signed_vma
+bfd_int64_t
bfd_getb_signed_64 (const void *p ATTRIBUTE_UNUSED)
{
-#ifdef BFD64
+#ifdef BFD_HOST_64_BIT
const bfd_byte *addr = p;
- bfd_vma v;
+ bfd_uint64_t v;
v = addr[0]; v <<= 8;
v |= addr[1]; v <<= 8;
#endif
}
-bfd_signed_vma
+bfd_int64_t
bfd_getl_signed_64 (const void *p ATTRIBUTE_UNUSED)
{
-#ifdef BFD64
+#ifdef BFD_HOST_64_BIT
const bfd_byte *addr = p;
- bfd_vma v;
+ bfd_uint64_t v;
v = addr[7]; v <<= 8;
v |= addr[6]; v <<= 8;
}
void
-bfd_putb64 (bfd_vma data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED)
+bfd_putb64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED)
{
-#ifdef BFD64
+#ifdef BFD_HOST_64_BIT
bfd_byte *addr = p;
addr[0] = (data >> (7*8)) & 0xff;
addr[1] = (data >> (6*8)) & 0xff;
}
void
-bfd_putl64 (bfd_vma data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED)
+bfd_putl64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED)
{
-#ifdef BFD64
+#ifdef BFD_HOST_64_BIT
bfd_byte *addr = p;
addr[7] = (data >> (7*8)) & 0xff;
addr[6] = (data >> (6*8)) & 0xff;
}
void
-bfd_put_bits (bfd_vma data, void *p, int bits, bfd_boolean big_p)
+bfd_put_bits (bfd_uint64_t data, void *p, int bits, bfd_boolean big_p)
{
bfd_byte *addr = p;
int i;
}
}
-bfd_vma
+bfd_uint64_t
bfd_get_bits (const void *p, int bits, bfd_boolean big_p)
{
const bfd_byte *addr = p;
- bfd_vma data;
+ bfd_uint64_t data;
int i;
int bytes;
file_ptr offset,
bfd_size_type count)
{
+ bfd_size_type sz;
if (count == 0)
return TRUE;
- if (offset + count > section->_raw_size)
+ sz = section->rawsize ? section->rawsize : section->size;
+ if (offset + count > sz)
{
bfd_set_error (bfd_error_invalid_operation);
return FALSE;
bfd_size_type count ATTRIBUTE_UNUSED)
{
#ifdef USE_MMAP
+ bfd_size_type sz;
+
if (count == 0)
return TRUE;
if (abfd->xvec->_bfd_get_section_contents
w->data = w->i->data;
return bfd_get_section_contents (abfd, section, w->data, offset, count);
}
- if (offset + count > section->_raw_size
+ sz = section->rawsize ? section->rawsize : section->size;
+ if (offset + count > sz
|| ! bfd_get_file_window (abfd, section->filepos + offset, count, w,
TRUE))
return FALSE;
const char *msg;
if (bfd_big_endian (ibfd))
- msg = _("%s: compiled for a big endian system and target is little endian");
+ msg = _("%B: compiled for a big endian system and target is little endian");
else
- msg = _("%s: compiled for a little endian system and target is big endian");
+ msg = _("%B: compiled for a little endian system and target is big endian");
- (*_bfd_error_handler) (msg, bfd_archive_filename (ibfd));
+ (*_bfd_error_handler) (msg, ibfd);
bfd_set_error (bfd_error_wrong_format);
return FALSE;
mask |= ~(size_t) func;
}
}
+
+/* Helper function for reading uleb128 encoded data. */
+
+bfd_vma
+read_unsigned_leb128 (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_byte *buf,
+ unsigned int *bytes_read_ptr)
+{
+ bfd_vma result;
+ unsigned int num_read;
+ unsigned int shift;
+ unsigned char byte;
+
+ result = 0;
+ shift = 0;
+ num_read = 0;
+ do
+ {
+ byte = bfd_get_8 (abfd, buf);
+ buf++;
+ num_read++;
+ result |= (((bfd_vma) byte & 0x7f) << shift);
+ shift += 7;
+ }
+ while (byte & 0x80);
+ *bytes_read_ptr = num_read;
+ return result;
+}
+
+/* Helper function for reading sleb128 encoded data. */
+
+bfd_signed_vma
+read_signed_leb128 (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_byte *buf,
+ unsigned int *bytes_read_ptr)
+{
+ bfd_vma result;
+ unsigned int shift;
+ unsigned int num_read;
+ unsigned char byte;
+
+ result = 0;
+ shift = 0;
+ num_read = 0;
+ do
+ {
+ byte = bfd_get_8 (abfd, buf);
+ buf ++;
+ num_read ++;
+ result |= (((bfd_vma) byte & 0x7f) << shift);
+ shift += 7;
+ }
+ while (byte & 0x80);
+ if (shift < 8 * sizeof (result) && (byte & 0x40))
+ result |= (((bfd_vma) -1) << shift);
+ *bytes_read_ptr = num_read;
+ return result;
+}
+
+bfd_boolean
+_bfd_generic_find_line (bfd *abfd ATTRIBUTE_UNUSED,
+ asymbol **symbols ATTRIBUTE_UNUSED,
+ asymbol *symbol ATTRIBUTE_UNUSED,
+ const char **filename_ptr ATTRIBUTE_UNUSED,
+ unsigned int *linenumber_ptr ATTRIBUTE_UNUSED)
+{
+ return FALSE;
+}
+
+bfd_boolean
+_bfd_generic_init_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED,
+ asection *isec ATTRIBUTE_UNUSED,
+ bfd *obfd ATTRIBUTE_UNUSED,
+ asection *osec ATTRIBUTE_UNUSED,
+ struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
+{
+ return TRUE;
+}