/* Assorted BFD support routines, only used internally.
- Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009
+ Free Software Foundation, Inc.
Written by Cygnus Support.
-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 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., 675 Mass Ave, Cambridge, MA 02139, 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 "libbfd.h"
+#ifndef HAVE_GETPAGESIZE
+#define getpagesize() 2048
+#endif
+
/*
SECTION
- libbfd
+ Implementation details
+
+SUBSECTION
+ Internal functions
DESCRIPTION
- This file contains various routines which are used within BFD.
+ These routines are used within BFD.
They are not intended for export, but are documented here for
completeness.
*/
-boolean
-DEFUN(_bfd_dummy_new_section_hook,(ignore, ignore_newsect),
- bfd *ignore AND
- asection *ignore_newsect)
+/* A routine which is used in target vectors for unsupported
+ operations. */
+
+bfd_boolean
+bfd_false (bfd *ignore ATTRIBUTE_UNUSED)
+{
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+}
+
+/* A routine which is used in target vectors for supported operations
+ which do not actually do anything. */
+
+bfd_boolean
+bfd_true (bfd *ignore ATTRIBUTE_UNUSED)
{
- return true;
+ return TRUE;
}
-boolean
-DEFUN(bfd_false ,(ignore),
- bfd *ignore)
+/* A routine which is used in target vectors for unsupported
+ operations which return a pointer value. */
+
+void *
+bfd_nullvoidptr (bfd *ignore ATTRIBUTE_UNUSED)
{
- return false;
+ bfd_set_error (bfd_error_invalid_operation);
+ return NULL;
}
-boolean
-DEFUN(bfd_true,(ignore),
- bfd *ignore)
+int
+bfd_0 (bfd *ignore ATTRIBUTE_UNUSED)
{
- return true;
+ return 0;
}
-PTR
-DEFUN(bfd_nullvoidptr,(ignore),
- bfd *ignore)
+unsigned int
+bfd_0u (bfd *ignore ATTRIBUTE_UNUSED)
{
- return (PTR)NULL;
+ return 0;
}
-int
-DEFUN(bfd_0,(ignore),
- bfd *ignore)
+long
+bfd_0l (bfd *ignore ATTRIBUTE_UNUSED)
{
return 0;
}
-unsigned int
-DEFUN(bfd_0u,(ignore),
- bfd *ignore)
+/* A routine which is used in target vectors for unsupported
+ operations which return -1 on error. */
+
+long
+_bfd_n1 (bfd *ignore_abfd ATTRIBUTE_UNUSED)
{
- return 0;
+ bfd_set_error (bfd_error_invalid_operation);
+ return -1;
}
-void
-DEFUN(bfd_void,(ignore),
- bfd *ignore)
+void
+bfd_void (bfd *ignore ATTRIBUTE_UNUSED)
{
}
-boolean
-DEFUN(_bfd_dummy_core_file_matches_executable_p,(ignore_core_bfd, ignore_exec_bfd),
- bfd *ignore_core_bfd AND
- bfd *ignore_exec_bfd)
+long
+_bfd_norelocs_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec ATTRIBUTE_UNUSED)
{
- bfd_error = invalid_operation;
- return false;
+ return sizeof (arelent *);
}
-/* of course you can't initialize a function to be the same as another, grr */
+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,
+ bfd *ignore_exec_bfd ATTRIBUTE_UNUSED)
+{
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+}
+
+/* Routine to handle core_file_failing_command entry point for targets
+ without core file support. */
char *
-DEFUN(_bfd_dummy_core_file_failing_command,(ignore_abfd),
- bfd *ignore_abfd)
+_bfd_nocore_core_file_failing_command (bfd *ignore_abfd ATTRIBUTE_UNUSED)
{
- return (char *)NULL;
+ bfd_set_error (bfd_error_invalid_operation);
+ return NULL;
}
+/* Routine to handle core_file_failing_signal entry point for targets
+ without core file support. */
+
int
-DEFUN(_bfd_dummy_core_file_failing_signal,(ignore_abfd),
- bfd *ignore_abfd)
+_bfd_nocore_core_file_failing_signal (bfd *ignore_abfd ATTRIBUTE_UNUSED)
{
+ bfd_set_error (bfd_error_invalid_operation);
return 0;
}
-bfd_target *
-DEFUN(_bfd_dummy_target,(ignore_abfd),
- bfd *ignore_abfd)
+/* Routine to handle the core_file_pid entry point for targets without
+ core file support. */
+
+int
+_bfd_nocore_core_file_pid (bfd *ignore_abfd ATTRIBUTE_UNUSED)
{
+ bfd_set_error (bfd_error_invalid_operation);
return 0;
}
-\f
-/** zalloc -- allocate and clear storage */
+const bfd_target *
+_bfd_dummy_target (bfd *ignore_abfd ATTRIBUTE_UNUSED)
+{
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+}
+\f
+/* Allocate memory using malloc. */
-#ifndef zalloc
-char *
-DEFUN(zalloc,(size),
- bfd_size_type size)
+void *
+bfd_malloc (bfd_size_type size)
{
- char *ptr = (char *) malloc ((int)size);
+ void *ptr;
- if ((ptr != NULL) && (size != 0))
- memset(ptr,0, size);
+ 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;
}
-#endif
-
-/*
-INTERNAL_FUNCTION
- bfd_xmalloc
-
-SYNOPSIS
- PTR bfd_xmalloc( bfd_size_type size);
-DESCRIPTION
- Like malloc, but exit if no more memory.
+/* Allocate memory using malloc, nmemb * size with overflow checking. */
-*/
+void *
+bfd_malloc2 (bfd_size_type nmemb, bfd_size_type size)
+{
+ void *ptr;
-/** 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 ... */
+ 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;
-DEFUN(PTR bfd_xmalloc,(size),
- bfd_size_type size)
-{
- static CONST char no_memory_message[] = "Virtual memory exhausted!\n";
- PTR ptr;
- if (size == 0) size = 1;
- ptr = (PTR)malloc(size);
- if (!ptr)
+ if (size != (size_t) size)
{
- write (2, no_memory_message, sizeof(no_memory_message)-1);
- exit (-1);
+ 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;
}
-\f
-/* Some IO code */
+/* Reallocate memory using realloc. */
-/* 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.
+void *
+bfd_realloc (void *ptr, bfd_size_type size)
+{
+ void *ret;
- 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
- first octet in the file, NOT the beginning of the archive header. */
+ if (size != (size_t) size)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
+ }
-static
-int DEFUN(real_read,(where, a,b, file),
- PTR where AND
- int a AND
- int b AND
- FILE *file)
-{
- return fread(where, a,b,file);
+ 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;
}
-bfd_size_type
-DEFUN(bfd_read,(ptr, size, nitems, abfd),
- PTR ptr AND
- bfd_size_type size AND
- bfd_size_type nitems AND
- bfd *abfd)
+
+/* Reallocate memory using realloc, nmemb * size with overflow checking. */
+
+void *
+bfd_realloc2 (void *ptr, bfd_size_type nmemb, bfd_size_type size)
{
- int nread;
- nread = real_read (ptr, 1, (int)(size*nitems), bfd_cache_lookup(abfd));
-#ifdef FILE_OFFSET_IS_CHAR_INDEX
- if (nread > 0)
- abfd->where += nread;
-#endif
- return nread;
+ 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;
}
-bfd_size_type
-DEFUN(bfd_write,(ptr, size, nitems, abfd),
- CONST PTR ptr AND
- bfd_size_type size AND
- bfd_size_type nitems AND
- bfd *abfd)
+/* Reallocate memory using realloc.
+ If this fails the pointer is freed before returning. */
+
+void *
+bfd_realloc_or_free (void *ptr, bfd_size_type size)
{
- int nwrote = fwrite (ptr, 1, (int)(size*nitems), bfd_cache_lookup(abfd));
-#ifdef FILE_OFFSET_IS_CHAR_INDEX
- if (nwrote > 0)
- abfd->where += nwrote;
-#endif
- return nwrote;
-}
+ size_t amount = (size_t) size;
+ void *ret;
-/*
-INTERNAL_FUNCTION
- bfd_write_bigendian_4byte_int
+ if (size != amount)
+ ret = NULL;
+ else if (ptr == NULL)
+ ret = malloc (amount);
+ else
+ ret = realloc (ptr, amount);
-SYNOPSIS
- void bfd_write_bigendian_4byte_int(bfd *abfd, int i);
+ if (ret == NULL)
+ {
+ if (amount > 0)
+ bfd_set_error (bfd_error_no_memory);
-DESCRIPTION
- Writes a 4 byte integer to the outputing bfd, in big endian
- mode regardless of what else is going on. This is usefull in
- archives.
+ if (ptr != NULL)
+ free (ptr);
+ }
-*/
-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);
+ return ret;
}
-long
-DEFUN(bfd_tell,(abfd),
- bfd *abfd)
+/* Allocate memory using malloc and clear it. */
+
+void *
+bfd_zmalloc (bfd_size_type size)
{
- file_ptr ptr;
+ void *ptr;
+
+ if (size != (size_t) size)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
+ }
- ptr = ftell (bfd_cache_lookup(abfd));
+ 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);
+ }
- if (abfd->my_archive)
- ptr -= abfd->origin;
- abfd->where = ptr;
return ptr;
}
-int
-DEFUN(bfd_seek,(abfd, position, direction),
- bfd * CONST abfd AND
- CONST file_ptr position AND
- CONST int direction)
-{
- int result;
- FILE *f;
- file_ptr file_position;
- /* 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_CUR && position == 0)
- return 0;
-#ifdef FILE_OFFSET_IS_CHAR_INDEX
- if (abfd->format != bfd_archive && abfd->my_archive == 0)
+/* 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)
{
-#ifndef NDEBUG
- /* Explanation for this code: I'm only about 95+% sure that the above
- conditions are sufficient and that all i/o calls are properly
- adjusting the `where' field. So this is sort of an `assert'
- that the `where' field is correct. If we can go a while without
- tripping the abort, we can probably safely disable this code,
- so that the real optimizations happen. */
- file_ptr where_am_i_now;
- where_am_i_now = ftell (bfd_cache_lookup (abfd));
- if (abfd->my_archive)
- where_am_i_now -= abfd->origin;
- if (where_am_i_now != abfd->where)
- abort ();
-#endif
- if (direction == SEEK_SET && position == abfd->where)
- return 0;
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
}
- else
- {
- /* We need something smarter to optimize access to archives.
- Currently, anything inside an archive is read via the file
- handle for the archive. Which means that a bfd_seek on one
- component affects the `current position' in the archive, as
- well as in any other component.
- It might be sufficient to put a spike through the cache
- abstraction, and look to the archive for the file position,
- but I think we should try for something cleaner.
+ size *= nmemb;
- In the meantime, no optimization for archives. */
+ if (size != (size_t) size)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
}
-#endif
-
- f = bfd_cache_lookup (abfd);
- file_position = position;
- if (direction == SEEK_SET && abfd->my_archive != NULL)
- file_position += abfd->origin;
- result = fseek (f, file_position, direction);
+ ptr = malloc ((size_t) size);
- if (result != 0)
- /* Force redetermination of `where' field. */
- bfd_tell (abfd);
- else
+ if ((size_t) size != 0)
{
-#ifdef FILE_OFFSET_IS_CHAR_INDEX
- /* Adjust `where' field. */
- if (direction == SEEK_SET)
- abfd->where = position;
+ if (ptr == NULL)
+ bfd_set_error (bfd_error_no_memory);
else
- abfd->where += position;
-#endif
+ memset (ptr, 0, (size_t) size);
}
- return result;
+
+ return ptr;
}
-\f
-/** Make a string table */
-
-/*>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 */
-
-boolean
-DEFUN(bfd_add_to_string_table,(table, new_string, table_length, free_ptr),
- char **table AND
- char *new_string AND
- unsigned int *table_length AND
- char **free_ptr)
-{
- size_t string_length = strlen (new_string) + 1; /* include null here */
- char *base = *table;
- size_t space_length = *table_length;
- unsigned int offset = (base ? *free_ptr - base : 0);
-
- if (base == NULL) {
- /* 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);
- base = zalloc (space_length);
-
- if (base == NULL) {
- bfd_error = no_memory;
- return false;
- }
- }
- if ((size_t)(offset + string_length) >= space_length) {
- /* Make sure we will have enough space */
- while ((size_t)(offset + string_length) >= space_length)
- space_length += space_length/2; /* grow by 50% */
+/*
+INTERNAL_FUNCTION
+ bfd_write_bigendian_4byte_int
- base = (char *) realloc (base, space_length);
- if (base == NULL) {
- bfd_error = no_memory;
- return false;
- }
+SYNOPSIS
+ bfd_boolean bfd_write_bigendian_4byte_int (bfd *, unsigned int);
- }
+DESCRIPTION
+ Write a 4 byte integer @var{i} to the output BFD @var{abfd}, in big
+ endian order regardless of what else is going on. This is useful in
+ archives.
- memcpy (base + offset, new_string, string_length);
- *table = base;
- *table_length = space_length;
- *free_ptr = base + offset + string_length;
-
- return true;
+*/
+bfd_boolean
+bfd_write_bigendian_4byte_int (bfd *abfd, unsigned int i)
+{
+ bfd_byte buffer[4];
+ bfd_putb32 ((bfd_vma) i, buffer);
+ return bfd_bwrite (buffer, (bfd_size_type) 4, abfd) == 4;
}
+
\f
/** The do-it-yourself (byte) sex-change kit */
/* FIXME: Should these take a count argument?
Answer (gnu@cygnus.com): No, but perhaps they should be inline
- functions in swap.h #ifdef __GNUC__.
+ functions in swap.h #ifdef __GNUC__.
Gprof them later and find out. */
/*
mangling performs any necessary endian translations and
removes alignment restrictions. Note that types accepted and
returned by these macros are identical so they can be swapped
- around in macros--for example libaout.h defines GET_WORD to
- either bfd_get_32 or bfd_get_64.
+ around in macros---for example, @file{libaout.h} defines <<GET_WORD>>
+ to either <<bfd_get_32>> or <<bfd_get_64>>.
- In the put routines, val must be a bfd_vma. If we are on a
+ In the put routines, @var{val} must be a <<bfd_vma>>. If we are on a
system without prototypes, the caller is responsible for making
sure that is true, with a cast if necessary. We don't cast
- them in the macro definitions because that would prevent lint
- or gcc -Wall from detecting sins such as passing a pointer.
- To detect calling these with less than a bfd_vma, use gcc
- -Wconversion on a host with 64 bit bfd_vma's.
-
+ them in the macro definitions because that would prevent <<lint>>
+ or <<gcc -Wall>> from detecting sins such as passing a pointer.
+ To detect calling these with less than a <<bfd_vma>>, use
+ <<gcc -Wconversion>> on a host with 64 bit <<bfd_vma>>'s.
+
+.
+.{* Byte swapping macros for user section data. *}
+.
.#define bfd_put_8(abfd, val, ptr) \
-. (*((unsigned char *)ptr) = (unsigned char)val)
-.#define bfd_put_signed_8(abfd, val, ptr) (*((char *)(ptr)) = (char)(val))
+. ((void) (*((unsigned char *) (ptr)) = (val) & 0xff))
+.#define bfd_put_signed_8 \
+. bfd_put_8
.#define bfd_get_8(abfd, ptr) \
-. (*((unsigned char *)(ptr)))
-.#define bfd_get_signed_8(abfd, ptr) (((*(char *)(ptr) ^ 0x80) & 0xff) - 0x80)
+. (*(unsigned char *) (ptr) & 0xff)
+.#define bfd_get_signed_8(abfd, ptr) \
+. (((*(unsigned char *) (ptr) & 0xff) ^ 0x80) - 0x80)
+.
.#define bfd_put_16(abfd, val, ptr) \
-. BFD_SEND(abfd, bfd_putx16, ((val),(ptr)))
-.#define bfd_put_signed_16 bfd_put_16
+. BFD_SEND (abfd, bfd_putx16, ((val),(ptr)))
+.#define bfd_put_signed_16 \
+. bfd_put_16
.#define bfd_get_16(abfd, ptr) \
-. BFD_SEND(abfd, bfd_getx16, (ptr))
+. BFD_SEND (abfd, bfd_getx16, (ptr))
.#define bfd_get_signed_16(abfd, ptr) \
-. BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
+. BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
+.
.#define bfd_put_32(abfd, val, ptr) \
-. BFD_SEND(abfd, bfd_putx32, ((val),(ptr)))
-.#define bfd_put_signed_32 bfd_put_32
+. BFD_SEND (abfd, bfd_putx32, ((val),(ptr)))
+.#define bfd_put_signed_32 \
+. bfd_put_32
.#define bfd_get_32(abfd, ptr) \
-. BFD_SEND(abfd, bfd_getx32, (ptr))
+. BFD_SEND (abfd, bfd_getx32, (ptr))
.#define bfd_get_signed_32(abfd, ptr) \
-. BFD_SEND(abfd, bfd_getx_signed_32, (ptr))
+. BFD_SEND (abfd, bfd_getx_signed_32, (ptr))
+.
.#define bfd_put_64(abfd, val, ptr) \
-. BFD_SEND(abfd, bfd_putx64, ((val), (ptr)))
-.#define bfd_put_signed_64 bfd_put_64
+. BFD_SEND (abfd, bfd_putx64, ((val), (ptr)))
+.#define bfd_put_signed_64 \
+. bfd_put_64
.#define bfd_get_64(abfd, ptr) \
-. BFD_SEND(abfd, bfd_getx64, (ptr))
+. BFD_SEND (abfd, bfd_getx64, (ptr))
.#define bfd_get_signed_64(abfd, ptr) \
-. BFD_SEND(abfd, bfd_getx_signed_64, (ptr))
-
-*/
+. BFD_SEND (abfd, bfd_getx_signed_64, (ptr))
+.
+.#define bfd_get(bits, abfd, ptr) \
+. ((bits) == 8 ? (bfd_vma) bfd_get_8 (abfd, ptr) \
+. : (bits) == 16 ? bfd_get_16 (abfd, ptr) \
+. : (bits) == 32 ? bfd_get_32 (abfd, ptr) \
+. : (bits) == 64 ? bfd_get_64 (abfd, ptr) \
+. : (abort (), (bfd_vma) - 1))
+.
+.#define bfd_put(bits, abfd, val, ptr) \
+. ((bits) == 8 ? bfd_put_8 (abfd, val, ptr) \
+. : (bits) == 16 ? bfd_put_16 (abfd, val, ptr) \
+. : (bits) == 32 ? bfd_put_32 (abfd, val, ptr) \
+. : (bits) == 64 ? bfd_put_64 (abfd, val, ptr) \
+. : (abort (), (void) 0))
+.
+*/
/*
FUNCTION
bfd_h_put_size
-FUNCTION
bfd_h_get_size
DESCRIPTION
These macros have the same function as their <<bfd_get_x>>
- bretherin, except that they are used for removing information
+ brethren, 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.
-
+ order and their data in little endian order.
+.
+.{* Byte swapping macros for file header data. *}
+.
.#define bfd_h_put_8(abfd, val, ptr) \
-. (*((unsigned char *)ptr) = (unsigned char)val)
-.#define bfd_h_put_signed_8(abfd, val, ptr) (*((char *)(ptr)) = (char)(val))
+. bfd_put_8 (abfd, val, ptr)
+.#define bfd_h_put_signed_8(abfd, val, ptr) \
+. bfd_put_8 (abfd, val, ptr)
.#define bfd_h_get_8(abfd, ptr) \
-. (*((unsigned char *)(ptr)))
-.#define bfd_h_get_signed_8 bfd_get_signed_8
+. bfd_get_8 (abfd, ptr)
+.#define bfd_h_get_signed_8(abfd, ptr) \
+. bfd_get_signed_8 (abfd, ptr)
+.
.#define bfd_h_put_16(abfd, val, ptr) \
-. BFD_SEND(abfd, bfd_h_putx16,(val,ptr))
-.#define bfd_h_put_signed_16 bfd_h_put_16
+. BFD_SEND (abfd, bfd_h_putx16, (val, ptr))
+.#define bfd_h_put_signed_16 \
+. bfd_h_put_16
.#define bfd_h_get_16(abfd, ptr) \
-. BFD_SEND(abfd, bfd_h_getx16,(ptr))
+. BFD_SEND (abfd, bfd_h_getx16, (ptr))
.#define bfd_h_get_signed_16(abfd, ptr) \
-. BFD_SEND(abfd, bfd_h_getx_signed_16, (ptr))
+. BFD_SEND (abfd, bfd_h_getx_signed_16, (ptr))
+.
.#define bfd_h_put_32(abfd, val, ptr) \
-. BFD_SEND(abfd, bfd_h_putx32,(val,ptr))
-.#define bfd_h_put_signed_32 bfd_h_put_32
+. BFD_SEND (abfd, bfd_h_putx32, (val, ptr))
+.#define bfd_h_put_signed_32 \
+. bfd_h_put_32
.#define bfd_h_get_32(abfd, ptr) \
-. BFD_SEND(abfd, bfd_h_getx32,(ptr))
+. BFD_SEND (abfd, bfd_h_getx32, (ptr))
.#define bfd_h_get_signed_32(abfd, ptr) \
-. BFD_SEND(abfd, bfd_h_getx_signed_32, (ptr))
+. BFD_SEND (abfd, bfd_h_getx_signed_32, (ptr))
+.
.#define bfd_h_put_64(abfd, val, ptr) \
-. BFD_SEND(abfd, bfd_h_putx64,(val, ptr))
-.#define bfd_h_put_signed_64 bfd_h_put_64
+. BFD_SEND (abfd, bfd_h_putx64, (val, ptr))
+.#define bfd_h_put_signed_64 \
+. bfd_h_put_64
.#define bfd_h_get_64(abfd, ptr) \
-. BFD_SEND(abfd, bfd_h_getx64,(ptr))
+. BFD_SEND (abfd, bfd_h_getx64, (ptr))
.#define bfd_h_get_signed_64(abfd, ptr) \
-. BFD_SEND(abfd, bfd_h_getx_signed_64, (ptr))
-
-*/
+. BFD_SEND (abfd, bfd_h_getx_signed_64, (ptr))
+.
+.{* Aliases for the above, which should eventually go away. *}
+.
+.#define H_PUT_64 bfd_h_put_64
+.#define H_PUT_32 bfd_h_put_32
+.#define H_PUT_16 bfd_h_put_16
+.#define H_PUT_8 bfd_h_put_8
+.#define H_PUT_S64 bfd_h_put_signed_64
+.#define H_PUT_S32 bfd_h_put_signed_32
+.#define H_PUT_S16 bfd_h_put_signed_16
+.#define H_PUT_S8 bfd_h_put_signed_8
+.#define H_GET_64 bfd_h_get_64
+.#define H_GET_32 bfd_h_get_32
+.#define H_GET_16 bfd_h_get_16
+.#define H_GET_8 bfd_h_get_8
+.#define H_GET_S64 bfd_h_get_signed_64
+.#define H_GET_S32 bfd_h_get_signed_32
+.#define H_GET_S16 bfd_h_get_signed_16
+.#define H_GET_S8 bfd_h_get_signed_8
+.
+.*/
/* 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 COERCE64(x) ((bfd_signed_vma)\
- (((x) ^ 0x8000000000000000) - 0x8000000000000000))
+#define COERCE16(x) (((bfd_signed_vma) (x) ^ 0x8000) - 0x8000)
+#define COERCE32(x) (((bfd_signed_vma) (x) ^ 0x80000000) - 0x80000000)
+#define EIGHT_GAZILLION ((bfd_int64_t) 1 << 63)
+#define COERCE64(x) \
+ (((bfd_int64_t) (x) ^ EIGHT_GAZILLION) - EIGHT_GAZILLION)
bfd_vma
-DEFUN(_do_getb16,(addr),
- register bfd_byte *addr)
+bfd_getb16 (const void *p)
{
- return (addr[0] << 8) | addr[1];
+ const bfd_byte *addr = (const bfd_byte *) p;
+ return (addr[0] << 8) | addr[1];
}
bfd_vma
-DEFUN(_do_getl16,(addr),
- register bfd_byte *addr)
+bfd_getl16 (const void *p)
{
- return (addr[1] << 8) | addr[0];
+ const bfd_byte *addr = (const bfd_byte *) p;
+ return (addr[1] << 8) | addr[0];
}
bfd_signed_vma
-DEFUN(_do_getb_signed_16,(addr),
- register bfd_byte *addr)
+bfd_getb_signed_16 (const void *p)
{
- return COERCE16((addr[0] << 8) | addr[1]);
+ const bfd_byte *addr = (const bfd_byte *) p;
+ return COERCE16 ((addr[0] << 8) | addr[1]);
}
bfd_signed_vma
-DEFUN(_do_getl_signed_16,(addr),
- register bfd_byte *addr)
+bfd_getl_signed_16 (const void *p)
{
- return COERCE16((addr[1] << 8) | addr[0]);
+ const bfd_byte *addr = (const bfd_byte *) p;
+ return COERCE16 ((addr[1] << 8) | addr[0]);
}
void
-DEFUN(_do_putb16,(data, addr),
- bfd_vma data AND
- register bfd_byte *addr)
+bfd_putb16 (bfd_vma data, void *p)
{
- addr[0] = (bfd_byte)(data >> 8);
- addr[1] = (bfd_byte )data;
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[0] = (data >> 8) & 0xff;
+ addr[1] = data & 0xff;
}
void
-DEFUN(_do_putl16,(data, addr),
- bfd_vma data AND
- register bfd_byte *addr)
+bfd_putl16 (bfd_vma data, void *p)
{
- addr[0] = (bfd_byte )data;
- addr[1] = (bfd_byte)(data >> 8);
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[0] = data & 0xff;
+ addr[1] = (data >> 8) & 0xff;
}
bfd_vma
-_do_getb32 (addr)
- register bfd_byte *addr;
+bfd_getb32 (const void *p)
{
- return ((((addr[0] << 8) | addr[1]) << 8) | addr[2]) << 8 | addr[3];
+ const bfd_byte *addr = (const bfd_byte *) p;
+ unsigned long v;
+
+ v = (unsigned long) addr[0] << 24;
+ v |= (unsigned long) addr[1] << 16;
+ v |= (unsigned long) addr[2] << 8;
+ v |= (unsigned long) addr[3];
+ return v;
}
bfd_vma
-_do_getl32 (addr)
- register bfd_byte *addr;
+bfd_getl32 (const void *p)
{
- return ((((addr[3] << 8) | addr[2]) << 8) | addr[1]) << 8 | addr[0];
+ const bfd_byte *addr = (const bfd_byte *) p;
+ unsigned long v;
+
+ v = (unsigned long) addr[0];
+ v |= (unsigned long) addr[1] << 8;
+ v |= (unsigned long) addr[2] << 16;
+ v |= (unsigned long) addr[3] << 24;
+ return v;
}
bfd_signed_vma
-_do_getb_signed_32 (addr)
- register bfd_byte *addr;
+bfd_getb_signed_32 (const void *p)
{
- return COERCE32(((((addr[0] << 8) | addr[1]) << 8)
- | addr[2]) << 8 | addr[3]);
+ const bfd_byte *addr = (const bfd_byte *) p;
+ unsigned long v;
+
+ v = (unsigned long) addr[0] << 24;
+ v |= (unsigned long) addr[1] << 16;
+ v |= (unsigned long) addr[2] << 8;
+ v |= (unsigned long) addr[3];
+ return COERCE32 (v);
}
bfd_signed_vma
-_do_getl_signed_32 (addr)
- register bfd_byte *addr;
+bfd_getl_signed_32 (const void *p)
{
- return COERCE32(((((addr[3] << 8) | addr[2]) << 8)
- | addr[1]) << 8 | addr[0]);
+ const bfd_byte *addr = (const bfd_byte *) p;
+ unsigned long v;
+
+ v = (unsigned long) addr[0];
+ v |= (unsigned long) addr[1] << 8;
+ v |= (unsigned long) addr[2] << 16;
+ v |= (unsigned long) addr[3] << 24;
+ return COERCE32 (v);
}
-bfd_vma
-DEFUN(_do_getb64,(addr),
- register bfd_byte *addr)
+bfd_uint64_t
+bfd_getb64 (const void *p ATTRIBUTE_UNUSED)
{
-#ifdef HOST_64_BIT
- bfd_vma low, high;
-
- high= ((((((((addr[0]) << 8) |
- addr[1]) << 8) |
- addr[2]) << 8) |
- addr[3]) );
-
- low = ((((((((addr[4]) << 8) |
- addr[5]) << 8) |
- addr[6]) << 8) |
- addr[7]));
-
- return high << 32 | low;
+#ifdef BFD_HOST_64_BIT
+ const bfd_byte *addr = (const bfd_byte *) p;
+ bfd_uint64_t v;
+
+ v = addr[0]; v <<= 8;
+ v |= addr[1]; v <<= 8;
+ v |= addr[2]; v <<= 8;
+ v |= addr[3]; v <<= 8;
+ v |= addr[4]; v <<= 8;
+ v |= addr[5]; v <<= 8;
+ v |= addr[6]; v <<= 8;
+ v |= addr[7];
+
+ return v;
#else
BFD_FAIL();
return 0;
#endif
-
}
-bfd_vma
-DEFUN(_do_getl64,(addr),
- register bfd_byte *addr)
+bfd_uint64_t
+bfd_getl64 (const void *p ATTRIBUTE_UNUSED)
{
-
-#ifdef HOST_64_BIT
- bfd_vma low, high;
- high= (((((((addr[7] << 8) |
- addr[6]) << 8) |
- addr[5]) << 8) |
- addr[4]));
-
- low = (((((((addr[3] << 8) |
- addr[2]) << 8) |
- addr[1]) << 8) |
- addr[0]) );
-
- return high << 32 | low;
+#ifdef BFD_HOST_64_BIT
+ const bfd_byte *addr = (const bfd_byte *) p;
+ bfd_uint64_t v;
+
+ v = addr[7]; v <<= 8;
+ v |= addr[6]; v <<= 8;
+ v |= addr[5]; v <<= 8;
+ v |= addr[4]; v <<= 8;
+ v |= addr[3]; v <<= 8;
+ v |= addr[2]; v <<= 8;
+ v |= addr[1]; v <<= 8;
+ v |= addr[0];
+
+ return v;
#else
BFD_FAIL();
return 0;
}
-bfd_signed_vma
-DEFUN(_do_getb_signed_64,(addr),
- register bfd_byte *addr)
+bfd_int64_t
+bfd_getb_signed_64 (const void *p ATTRIBUTE_UNUSED)
{
-#ifdef HOST_64_BIT
- bfd_vma low, high;
-
- high= ((((((((addr[0]) << 8) |
- addr[1]) << 8) |
- addr[2]) << 8) |
- addr[3]) );
-
- low = ((((((((addr[4]) << 8) |
- addr[5]) << 8) |
- addr[6]) << 8) |
- addr[7]));
-
- return COERCE64(high << 32 | low);
+#ifdef BFD_HOST_64_BIT
+ const bfd_byte *addr = (const bfd_byte *) p;
+ bfd_uint64_t v;
+
+ v = addr[0]; v <<= 8;
+ v |= addr[1]; v <<= 8;
+ v |= addr[2]; v <<= 8;
+ v |= addr[3]; v <<= 8;
+ v |= addr[4]; v <<= 8;
+ v |= addr[5]; v <<= 8;
+ v |= addr[6]; v <<= 8;
+ v |= addr[7];
+
+ return COERCE64 (v);
#else
BFD_FAIL();
return 0;
#endif
-
}
-bfd_signed_vma
-DEFUN(_do_getl_signed_64,(addr),
- register bfd_byte *addr)
+bfd_int64_t
+bfd_getl_signed_64 (const void *p ATTRIBUTE_UNUSED)
{
-
-#ifdef HOST_64_BIT
- bfd_vma low, high;
- high= (((((((addr[7] << 8) |
- addr[6]) << 8) |
- addr[5]) << 8) |
- addr[4]));
-
- low = (((((((addr[3] << 8) |
- addr[2]) << 8) |
- addr[1]) << 8) |
- addr[0]) );
-
- return COERCE64(high << 32 | low);
+#ifdef BFD_HOST_64_BIT
+ const bfd_byte *addr = (const bfd_byte *) p;
+ bfd_uint64_t v;
+
+ v = addr[7]; v <<= 8;
+ v |= addr[6]; v <<= 8;
+ v |= addr[5]; v <<= 8;
+ v |= addr[4]; v <<= 8;
+ v |= addr[3]; v <<= 8;
+ v |= addr[2]; v <<= 8;
+ v |= addr[1]; v <<= 8;
+ v |= addr[0];
+
+ return COERCE64 (v);
#else
BFD_FAIL();
return 0;
#endif
-
}
void
-DEFUN(_do_putb32,(data, addr),
- bfd_vma data AND
- register bfd_byte *addr)
+bfd_putb32 (bfd_vma data, void *p)
{
- addr[0] = (bfd_byte)(data >> 24);
- addr[1] = (bfd_byte)(data >> 16);
- addr[2] = (bfd_byte)(data >> 8);
- addr[3] = (bfd_byte)data;
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[0] = (data >> 24) & 0xff;
+ addr[1] = (data >> 16) & 0xff;
+ addr[2] = (data >> 8) & 0xff;
+ addr[3] = data & 0xff;
}
void
-DEFUN(_do_putl32,(data, addr),
- bfd_vma data AND
- register bfd_byte *addr)
+bfd_putl32 (bfd_vma data, void *p)
{
- addr[0] = (bfd_byte)data;
- addr[1] = (bfd_byte)(data >> 8);
- addr[2] = (bfd_byte)(data >> 16);
- addr[3] = (bfd_byte)(data >> 24);
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[0] = data & 0xff;
+ addr[1] = (data >> 8) & 0xff;
+ addr[2] = (data >> 16) & 0xff;
+ addr[3] = (data >> 24) & 0xff;
}
+
void
-DEFUN(_do_putb64,(data, addr),
- bfd_vma data AND
- register bfd_byte *addr)
-{
-#ifdef HOST_64_BIT
- addr[0] = (bfd_byte)(data >> (7*8));
- addr[1] = (bfd_byte)(data >> (6*8));
- addr[2] = (bfd_byte)(data >> (5*8));
- addr[3] = (bfd_byte)(data >> (4*8));
- addr[4] = (bfd_byte)(data >> (3*8));
- addr[5] = (bfd_byte)(data >> (2*8));
- addr[6] = (bfd_byte)(data >> (1*8));
- addr[7] = (bfd_byte)(data >> (0*8));
+bfd_putb64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED)
+{
+#ifdef BFD_HOST_64_BIT
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[0] = (data >> (7*8)) & 0xff;
+ addr[1] = (data >> (6*8)) & 0xff;
+ addr[2] = (data >> (5*8)) & 0xff;
+ addr[3] = (data >> (4*8)) & 0xff;
+ addr[4] = (data >> (3*8)) & 0xff;
+ addr[5] = (data >> (2*8)) & 0xff;
+ addr[6] = (data >> (1*8)) & 0xff;
+ addr[7] = (data >> (0*8)) & 0xff;
#else
BFD_FAIL();
#endif
-
}
void
-DEFUN(_do_putl64,(data, addr),
- bfd_vma data AND
- register bfd_byte *addr)
-{
-#ifdef HOST_64_BIT
- addr[7] = (bfd_byte)(data >> (7*8));
- addr[6] = (bfd_byte)(data >> (6*8));
- addr[5] = (bfd_byte)(data >> (5*8));
- addr[4] = (bfd_byte)(data >> (4*8));
- addr[3] = (bfd_byte)(data >> (3*8));
- addr[2] = (bfd_byte)(data >> (2*8));
- addr[1] = (bfd_byte)(data >> (1*8));
- addr[0] = (bfd_byte)(data >> (0*8));
+bfd_putl64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED)
+{
+#ifdef BFD_HOST_64_BIT
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[7] = (data >> (7*8)) & 0xff;
+ addr[6] = (data >> (6*8)) & 0xff;
+ addr[5] = (data >> (5*8)) & 0xff;
+ addr[4] = (data >> (4*8)) & 0xff;
+ addr[3] = (data >> (3*8)) & 0xff;
+ addr[2] = (data >> (2*8)) & 0xff;
+ addr[1] = (data >> (1*8)) & 0xff;
+ addr[0] = (data >> (0*8)) & 0xff;
#else
BFD_FAIL();
#endif
+}
+void
+bfd_put_bits (bfd_uint64_t data, void *p, int bits, bfd_boolean big_p)
+{
+ bfd_byte *addr = (bfd_byte *) p;
+ int i;
+ int bytes;
+
+ if (bits % 8 != 0)
+ abort ();
+
+ bytes = bits / 8;
+ for (i = 0; i < bytes; i++)
+ {
+ int addr_index = big_p ? bytes - i - 1 : i;
+
+ addr[addr_index] = data & 0xff;
+ data >>= 8;
+ }
}
+bfd_uint64_t
+bfd_get_bits (const void *p, int bits, bfd_boolean big_p)
+{
+ const bfd_byte *addr = (const bfd_byte *) p;
+ bfd_uint64_t data;
+ int i;
+ int bytes;
+
+ if (bits % 8 != 0)
+ abort ();
+
+ data = 0;
+ bytes = bits / 8;
+ for (i = 0; i < bytes; i++)
+ {
+ int addr_index = big_p ? i : bytes - i - 1;
+
+ data = (data << 8) | addr[addr_index];
+ }
+
+ return data;
+}
\f
/* Default implementation */
-boolean
-DEFUN(bfd_generic_get_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)
+bfd_boolean
+_bfd_generic_get_section_contents (bfd *abfd,
+ sec_ptr section,
+ void *location,
+ file_ptr offset,
+ bfd_size_type count)
{
- if (count == 0)
- return true;
- if ((bfd_size_type)(offset+count) > section->_raw_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);
+ bfd_size_type sz;
+ if (count == 0)
+ return TRUE;
+
+ if (section->compress_status != COMPRESS_SECTION_NONE)
+ {
+ (*_bfd_error_handler)
+ (_("%B: unable to get decompressed section %A"),
+ abfd, section);
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+ }
+
+ sz = section->rawsize ? section->rawsize : section->size;
+ if (offset + count < count
+ || offset + count > sz)
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+ }
+
+ if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
+ || bfd_bread (location, count, abfd) != count)
+ return FALSE;
+
+ return TRUE;
+}
+
+bfd_boolean
+_bfd_generic_get_section_contents_in_window
+ (bfd *abfd ATTRIBUTE_UNUSED,
+ sec_ptr section ATTRIBUTE_UNUSED,
+ bfd_window *w ATTRIBUTE_UNUSED,
+ file_ptr offset ATTRIBUTE_UNUSED,
+ 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
+ != _bfd_generic_get_section_contents)
+ {
+ /* We don't know what changes the bfd's get_section_contents
+ method may have to make. So punt trying to map the file
+ window, and let get_section_contents do its thing. */
+ /* @@ FIXME : If the internal window has a refcount of 1 and was
+ allocated with malloc instead of mmap, just reuse it. */
+ bfd_free_window (w);
+ w->i = bfd_zmalloc (sizeof (bfd_window_internal));
+ if (w->i == NULL)
+ return FALSE;
+ w->i->data = bfd_malloc (count);
+ if (w->i->data == NULL)
+ {
+ free (w->i);
+ w->i = NULL;
+ return FALSE;
+ }
+ w->i->mapped = 0;
+ w->i->refcount = 1;
+ w->size = w->i->size = count;
+ w->data = w->i->data;
+ return bfd_get_section_contents (abfd, section, w->data, offset, count);
+ }
+ sz = section->rawsize ? section->rawsize : section->size;
+ if (offset + count > sz
+ || ! bfd_get_file_window (abfd, section->filepos + offset, count, w,
+ TRUE))
+ return FALSE;
+ return TRUE;
+#else
+ abort ();
+#endif
}
/* 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) > bfd_get_section_size_after_reloc(section)
- || 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);
+bfd_boolean
+_bfd_generic_set_section_contents (bfd *abfd,
+ sec_ptr section,
+ const void *location,
+ file_ptr offset,
+ bfd_size_type count)
+{
+ if (count == 0)
+ return TRUE;
+
+ if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
+ || bfd_bwrite (location, count, abfd) != count)
+ return FALSE;
+
+ return TRUE;
}
/*
INTERNAL_FUNCTION
bfd_log2
-DESCRIPTION
- Return the log base 2 of the value supplied, rounded up. eg an
- arg of 1025 would return 11.
-
SYNOPSIS
- bfd_vma bfd_log2(bfd_vma x);
+ unsigned int bfd_log2 (bfd_vma x);
+
+DESCRIPTION
+ Return the log base 2 of the value supplied, rounded up. E.g., an
+ @var{x} of 1025 returns 11. A @var{x} of 0 returns 0.
*/
-bfd_vma bfd_log2(x)
-bfd_vma x;
+unsigned int
+bfd_log2 (bfd_vma x)
+{
+ unsigned int result = 0;
+
+ while ((x = (x >> 1)) != 0)
+ ++result;
+ return result;
+}
+
+bfd_boolean
+bfd_generic_is_local_label_name (bfd *abfd, const char *name)
+{
+ char locals_prefix = (bfd_get_symbol_leading_char (abfd) == '_') ? 'L' : '.';
+
+ return name[0] == locals_prefix;
+}
+
+/* Can be used from / for bfd_merge_private_bfd_data to check that
+ endianness matches between input and output file. Returns
+ TRUE for a match, otherwise returns FALSE and emits an error. */
+bfd_boolean
+_bfd_generic_verify_endian_match (bfd *ibfd, bfd *obfd)
+{
+ if (ibfd->xvec->byteorder != obfd->xvec->byteorder
+ && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
+ && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
+ {
+ const char *msg;
+
+ if (bfd_big_endian (ibfd))
+ msg = _("%B: compiled for a big endian system and target is little endian");
+ else
+ msg = _("%B: compiled for a little endian system and target is big endian");
+
+ (*_bfd_error_handler) (msg, ibfd);
+
+ bfd_set_error (bfd_error_wrong_format);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+/* Give a warning at runtime if someone compiles code which calls
+ old routines. */
+
+void
+warn_deprecated (const char *what,
+ const char *file,
+ int line,
+ const char *func)
+{
+ /* Poor man's tracking of functions we've already warned about. */
+ static size_t mask = 0;
+
+ if (~(size_t) func & ~mask)
+ {
+ /* Note: separate sentences in order to allow
+ for translation into other languages. */
+ if (func)
+ fprintf (stderr, _("Deprecated %s called at %s line %d in %s\n"),
+ what, file, line, func);
+ else
+ fprintf (stderr, _("Deprecated %s called\n"), what);
+ 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 = 0;
- while ( (bfd_vma)(1<< result) < x)
- result++;
+ 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;
+}
projects / thirdparty / binutils-gdb.git / blobdiff