-/* Copyright (C) 1990, 1991 Free Software Foundation, Inc.
+/* libbfd.c -- random BFD support routines, only used internally.
+ Copyright (C) 1990-1991 Free Software Foundation, Inc.
+ Written by Cygnus Support.
-This file is part of BFD, the Binary File Diddler.
+This file is part of BFD, the Binary File Descriptor library.
-BFD is free software; you can redistribute it and/or modify
+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 1, or (at your option)
-any later version.
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
-BFD is distributed in the hope that it will be useful,
+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 BFD; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* $Id$ */
-/*** libbfd.c -- random bfd support routines used internally only. */
-#include <sysdep.h>
#include "bfd.h"
+#include "sysdep.h"
#include "libbfd.h"
-
-\f
/** Dummies for targets that don't want or need to implement
certain operations */
return ptr;
}
#endif
+
+/*proto-internal* bfd_xmalloc
+bfd_xmalloc -- Like malloc, but exit if no more memory.
+*; PROTO(PTR, bfd_xmalloc,( bfd_size_type size));
+*/
+/** There is major inconsistency in how running out of memory is handled.
+ Some routines return a NULL, and set bfd_error to no_memory.
+ However, obstack routines can't do this ... */
+
+
+DEFUN(PTR bfd_xmalloc,(size),
+ bfd_size_type size)
+{
+ static char no_memory_message[] = "Virtual memory exhausted!\n";
+ PTR ptr;
+ if (size == 0) size = 1;
+ ptr = (PTR)malloc(size);
+ if (ptr == NULL)
+ if (!ptr)
+ {
+ write (2, no_memory_message, sizeof(no_memory_message)-1);
+ exit (-1);
+ }
+ return ptr;
+}
\f
/* Some IO code */
/* Note that archive entries don't have streams; they share their parent's.
- This allows someone to play with the iostream behind bfd's back.
+ This allows someone to play with the iostream behind BFD's back.
Also, note that the origin pointer points to the beginning of a file's
contents (0 for non-archive elements). For archive entries this is the
static
int DEFUN(real_read,(where, a,b, file),
- PTR where AND
- int a AND
- int b AND
- FILE *file)
+ PTR where AND
+ int a AND
+ int b AND
+ FILE *file)
{
return fread(where, a,b,file);
}
bfd_size_type
DEFUN(bfd_write,(ptr, size, nitems, abfd),
- PTR ptr AND
+ CONST PTR ptr AND
bfd_size_type size AND
bfd_size_type nitems AND
bfd *abfd)
return fwrite (ptr, 1, (int)(size*nitems), bfd_cache_lookup(abfd));
}
+/*proto-internal* bfd_write_bigendian_4byte_int
+
+*; PROTO(void, bfd_write_bigendian_4byte_int,( bfd *abfd, int i));
+*/
+void
+DEFUN(bfd_write_bigendian_4byte_int,(abfd, i),
+ bfd *abfd AND
+ int i)
+{
+ bfd_byte buffer[4];
+ _do_putb32(i, buffer);
+ bfd_write((PTR)buffer, 4, 1, abfd);
+}
+
int
DEFUN(bfd_seek,(abfd, position, direction),
bfd * CONST abfd AND
CONST file_ptr position AND
CONST int direction)
{
- /* For the time being, a bfd may not seek to it's end. The
- problem is that we don't easily have a way to recognize
- the end of an element in an archive. */
-
- BFD_ASSERT(direction == SEEK_SET
- || direction == SEEK_CUR);
-
- if (direction == SEEK_SET && abfd->my_archive != NULL)
- {
- /* This is a set within an archive, so we need to
- add the base of the object within the archive */
- return(fseek(bfd_cache_lookup(abfd),
- position + abfd->origin,
- direction));
- }
- else
- {
- return(fseek(bfd_cache_lookup(abfd), position, direction));
- }
+ /* For the time being, a BFD may not seek to it's end. The
+ problem is that we don't easily have a way to recognize
+ the end of an element in an archive. */
+
+ BFD_ASSERT(direction == SEEK_SET
+ || direction == SEEK_CUR);
+
+ if (direction == SEEK_SET && abfd->my_archive != NULL)
+ {
+ /* This is a set within an archive, so we need to
+ add the base of the object within the archive */
+ return(fseek(bfd_cache_lookup(abfd),
+ position + abfd->origin,
+ direction));
+ }
+ else
+ {
+ return(fseek(bfd_cache_lookup(abfd), position, direction));
+ }
}
long
DEFUN(bfd_tell,(abfd),
bfd *abfd)
{
- file_ptr ptr;
+ file_ptr ptr;
- ptr = ftell (bfd_cache_lookup(abfd));
+ ptr = ftell (bfd_cache_lookup(abfd));
- if (abfd->my_archive)
- ptr -= abfd->origin;
- return ptr;
+ if (abfd->my_archive)
+ ptr -= abfd->origin;
+ return ptr;
}
\f
/** Make a string table */
-/* Add string to table pointed to by table, at location starting with free_ptr.
+/*>bfd.h<
+ Add string to table pointed to by table, at location starting with free_ptr.
resizes the table if necessary (if it's NULL, creates it, ignoring
table_length). Updates free_ptr, table, table_length */
DEFUN(bfd_add_to_string_table,(table, new_string, table_length, free_ptr),
char **table AND
char *new_string AND
- char **free_ptr AND
- unsigned int *table_length)
+ unsigned int *table_length AND
+ char **free_ptr)
{
size_t string_length = strlen (new_string) + 1; /* include null here */
char *base = *table;
/* Avoid a useless regrow if we can (but of course we still
take it next time */
space_length = (string_length < DEFAULT_STRING_SPACE_SIZE ?
- DEFAULT_STRING_SPACE_SIZE : string_length+1);
+ DEFAULT_STRING_SPACE_SIZE : string_length+1);
base = zalloc (space_length);
if (base == NULL) {
/* FIXME: Should these take a count argument?
- functions in swap.h #ifdef __GNUC__.
- Gprof them later and find out. */
-
-unsigned int
+ functions in swap.h #ifdef __GNUC__.
+ Gprof them later and find out. */
+
+/*proto*
+*i bfd_put_size
+*i bfd_get_size
+These macros as used for reading and writing raw data in sections;
+each access (except for bytes) is vectored through the target format
+of the BFD and mangled accordingly. The mangling performs any
+necessary endian translations and removes alignment restrictions.
+*+
+#define bfd_put_8(abfd, val, ptr) \
+ (*((char *)ptr) = (char)val)
+#define bfd_get_8(abfd, ptr) \
+ (*((char *)ptr))
+#define bfd_put_16(abfd, val, ptr) \
+ BFD_SEND(abfd, bfd_putx16, (val,ptr))
+#define bfd_get_16(abfd, ptr) \
+ BFD_SEND(abfd, bfd_getx16, (ptr))
+#define bfd_put_32(abfd, val, ptr) \
+ BFD_SEND(abfd, bfd_putx32, (val,ptr))
+#define bfd_get_32(abfd, ptr) \
+ BFD_SEND(abfd, bfd_getx32, (ptr))
+#define bfd_put_64(abfd, val, ptr) \
+ BFD_SEND(abfd, bfd_putx64, (val, ptr))
+#define bfd_get_64(abfd, ptr) \
+ BFD_SEND(abfd, bfd_getx64, (ptr))
+*-
+*-*/
+
+/*proto*
+*i bfd_h_put_size
+*i bfd_h_get_size
+These macros have the same function as their @code{bfd_get_x}
+bretherin, except that they are used for removing information for the
+header records of object files. Believe it or not, some object files
+keep their header records in big endian order, and their data in little
+endan order.
+*+
+#define bfd_h_put_8(abfd, val, ptr) \
+ (*((char *)ptr) = (char)val)
+#define bfd_h_get_8(abfd, ptr) \
+ (*((char *)ptr))
+#define bfd_h_put_16(abfd, val, ptr) \
+ BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
+#define bfd_h_get_16(abfd, ptr) \
+ BFD_SEND(abfd, bfd_h_getx16,(ptr))
+#define bfd_h_put_32(abfd, val, ptr) \
+ BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
+#define bfd_h_get_32(abfd, ptr) \
+ BFD_SEND(abfd, bfd_h_getx32,(ptr))
+#define bfd_h_put_64(abfd, val, ptr) \
+ BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
+#define bfd_h_get_64(abfd, ptr) \
+ BFD_SEND(abfd, bfd_h_getx64,(ptr))
+*-
+*-*/
+
+bfd_vma
DEFUN(_do_getb16,(addr),
register bfd_byte *addr)
{
- return (addr[0] << 8) | addr[1];
+ return (addr[0] << 8) | addr[1];
}
-unsigned int
+bfd_vma
DEFUN(_do_getl16,(addr),
register bfd_byte *addr)
{
- return (addr[1] << 8) | addr[0];
+ return (addr[1] << 8) | addr[0];
}
void
DEFUN(_do_putb16,(data, addr),
- int data AND
+ bfd_vma data AND
register bfd_byte *addr)
{
- addr[0] = (bfd_byte)(data >> 8);
- addr[1] = (bfd_byte )data;
+ addr[0] = (bfd_byte)(data >> 8);
+ addr[1] = (bfd_byte )data;
}
void
DEFUN(_do_putl16,(data, addr),
- int data AND
+ bfd_vma data AND
register bfd_byte *addr)
{
- addr[0] = (bfd_byte )data;
- addr[1] = (bfd_byte)(data >> 8);
+ addr[0] = (bfd_byte )data;
+ addr[1] = (bfd_byte)(data >> 8);
}
-unsigned int
+bfd_vma
DEFUN(_do_getb32,(addr),
register bfd_byte *addr)
{
- return ((((addr[0] << 8) | addr[1]) << 8) | addr[2]) << 8 | addr[3];
+ return ((((addr[0] << 8) | addr[1]) << 8) | addr[2]) << 8 | addr[3];
}
-unsigned int
+bfd_vma
_do_getl32 (addr)
- register bfd_byte *addr;
+ register bfd_byte *addr;
{
- return ((((addr[3] << 8) | addr[2]) << 8) | addr[1]) << 8 | addr[0];
+ return ((((addr[3] << 8) | addr[2]) << 8) | addr[1]) << 8 | addr[0];
}
-bfd_64_type
+bfd_vma
DEFUN(_do_getb64,(addr),
register bfd_byte *addr)
{
bfd_64_type low, high;
high= ((((((((addr[0]) << 8) |
- addr[1]) << 8) |
- addr[2]) << 8) |
- addr[3]) );
+ addr[1]) << 8) |
+ addr[2]) << 8) |
+ addr[3]) );
low = ((((((((addr[4]) << 8) |
- addr[5]) << 8) |
- addr[6]) << 8) |
- addr[7]));
+ addr[5]) << 8) |
+ addr[6]) << 8) |
+ addr[7]));
return high << 32 | low;
#else
BFD_FAIL();
+ return 0;
#endif
}
-bfd_64_type
-DEFUN(do_getl64,(addr),
+bfd_vma
+DEFUN(_do_getl64,(addr),
register bfd_byte *addr)
{
- bfd_64_type low, high;
+
#ifdef HOST_64_BIT
+ bfd_64_type low, high;
high= (((((((addr[7] << 8) |
- addr[6]) << 8) |
- addr[5]) << 8) |
- addr[4]));
+ addr[6]) << 8) |
+ addr[5]) << 8) |
+ addr[4]));
low = (((((((addr[3] << 8) |
- addr[2]) << 8) |
- addr[1]) << 8) |
- addr[0]) );
+ addr[2]) << 8) |
+ addr[1]) << 8) |
+ addr[0]) );
return high << 32 | low;
#else
BFD_FAIL();
+ return 0;
#endif
+
}
void
DEFUN(_do_putb32,(data, addr),
- unsigned long data AND
+ bfd_vma data AND
register bfd_byte *addr)
{
- addr[0] = (bfd_byte)(data >> 24);
- addr[1] = (bfd_byte)(data >> 16);
- addr[2] = (bfd_byte)(data >> 8);
- addr[3] = (bfd_byte)data;
+ addr[0] = (bfd_byte)(data >> 24);
+ addr[1] = (bfd_byte)(data >> 16);
+ addr[2] = (bfd_byte)(data >> 8);
+ addr[3] = (bfd_byte)data;
}
void
DEFUN(_do_putl32,(data, addr),
- unsigned long data AND
+ bfd_vma data AND
register bfd_byte *addr)
{
- addr[0] = (bfd_byte)data;
- addr[1] = (bfd_byte)(data >> 8);
- addr[2] = (bfd_byte)(data >> 16);
- addr[3] = (bfd_byte)(data >> 24);
+ addr[0] = (bfd_byte)data;
+ addr[1] = (bfd_byte)(data >> 8);
+ addr[2] = (bfd_byte)(data >> 16);
+ addr[3] = (bfd_byte)(data >> 24);
}
void
DEFUN(_do_putb64,(data, addr),
- bfd_64_type data AND
- register bfd_byte *addr)
+ bfd_vma data AND
+ register bfd_byte *addr)
{
#ifdef HOST_64_BIT
addr[0] = (bfd_byte)(data >> (7*8));
void
DEFUN(_do_putl64,(data, addr),
- bfd_64_type data AND
+ bfd_vma data AND
register bfd_byte *addr)
{
#ifdef HOST_64_BIT
bfd_size_type count)
{
if (count == 0)
- return true;
- if ((bfd_size_type)offset >= section->size
- || bfd_seek(abfd,(file_ptr)( section->filepos + offset), SEEK_SET) == -1
- || bfd_read(location, (bfd_size_type)1, count, abfd) != count)
- return (false); /* on error */
+ return true;
+ if ((bfd_size_type)(offset+count) > section->size
+ || bfd_seek(abfd,(file_ptr)( section->filepos + offset), SEEK_SET) == -1
+ || bfd_read(location, (bfd_size_type)1, count, abfd) != count)
+ return (false); /* on error */
return (true);
}
+
+/* This generic function can only be used in implementations where creating
+ NEW sections is disallowed. It is useful in patching existing sections
+ in read-write files, though. See other set_section_contents functions
+ to see why it doesn't work for new sections. */
+boolean
+DEFUN(bfd_generic_set_section_contents, (abfd, section, location, offset, count),
+ bfd *abfd AND
+ sec_ptr section AND
+ PTR location AND
+ file_ptr offset AND
+ bfd_size_type count)
+{
+ if (count == 0)
+ return true;
+ if ((bfd_size_type)(offset+count) > section->size
+ || bfd_seek(abfd, (file_ptr)(section->filepos + offset), SEEK_SET) == -1
+ || bfd_write(location, (bfd_size_type)1, count, abfd) != count)
+ return (false); /* on error */
+ return (true);
+}
+
+/*proto-internal*
+*i bfd_log2
+Return the log base 2 of the value supplied, rounded up. eg an arg
+of 1025 would return 11.
+*; PROTO(bfd_vma, bfd_log2,(bfd_vma x));
+*-*/
+
+bfd_vma bfd_log2(x)
+bfd_vma x;
+{
+ bfd_vma result = 0;
+ while ( (bfd_vma)(1<< result) < x)
+ result++;
+ return result;
+}
projects / binutils.git / blobdiff