/* Assorted BFD support routines, only used internally.
- Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002
- Free Software Foundation, Inc.
+ Copyright (C) 1990-2020 Free Software Foundation, Inc.
Written by Cygnus Support.
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
+ 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
#define getpagesize() 2048
#endif
-static size_t real_read PARAMS ((PTR, size_t, size_t, FILE *));
-
/*
SECTION
+ Implementation details
+
+SUBSECTION
Internal functions
DESCRIPTION
completeness.
*/
+bfd_boolean
+_bfd_bool_bfd_false (bfd *abfd ATTRIBUTE_UNUSED)
+{
+ return FALSE;
+}
+
+bfd_boolean
+_bfd_bool_bfd_asymbol_false (bfd *abfd ATTRIBUTE_UNUSED,
+ asymbol *sym ATTRIBUTE_UNUSED)
+{
+ return FALSE;
+}
+
/* A routine which is used in target vectors for unsupported
operations. */
-boolean
-bfd_false (ignore)
- bfd *ignore ATTRIBUTE_UNUSED;
+bfd_boolean
+_bfd_bool_bfd_false_error (bfd *ignore ATTRIBUTE_UNUSED)
{
bfd_set_error (bfd_error_invalid_operation);
- return false;
+ return FALSE;
+}
+
+bfd_boolean
+_bfd_bool_bfd_link_false_error (bfd *abfd,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED)
+{
+ return _bfd_bool_bfd_false_error (abfd);
}
/* A routine which is used in target vectors for supported operations
which do not actually do anything. */
-boolean
-bfd_true (ignore)
- bfd *ignore ATTRIBUTE_UNUSED;
+bfd_boolean
+_bfd_bool_bfd_true (bfd *ignore ATTRIBUTE_UNUSED)
+{
+ return TRUE;
+}
+
+bfd_boolean
+_bfd_bool_bfd_link_true (bfd *abfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
- return true;
+ return TRUE;
+}
+
+bfd_boolean
+_bfd_bool_bfd_bfd_true (bfd *ibfd ATTRIBUTE_UNUSED,
+ bfd *obfd ATTRIBUTE_UNUSED)
+{
+ return TRUE;
+}
+
+bfd_boolean
+_bfd_bool_bfd_uint_true (bfd *abfd ATTRIBUTE_UNUSED,
+ unsigned int flags ATTRIBUTE_UNUSED)
+{
+ return TRUE;
+}
+
+bfd_boolean
+_bfd_bool_bfd_asection_bfd_asection_true (bfd *ibfd ATTRIBUTE_UNUSED,
+ asection *isec ATTRIBUTE_UNUSED,
+ bfd *obfd ATTRIBUTE_UNUSED,
+ asection *osec ATTRIBUTE_UNUSED)
+{
+ return TRUE;
+}
+
+bfd_boolean
+_bfd_bool_bfd_asymbol_bfd_asymbol_true (bfd *ibfd ATTRIBUTE_UNUSED,
+ asymbol *isym ATTRIBUTE_UNUSED,
+ bfd *obfd ATTRIBUTE_UNUSED,
+ asymbol *osym ATTRIBUTE_UNUSED)
+{
+ return TRUE;
+}
+
+bfd_boolean
+_bfd_bool_bfd_ptr_true (bfd *abfd ATTRIBUTE_UNUSED,
+ void *ptr ATTRIBUTE_UNUSED)
+{
+ return TRUE;
}
/* A routine which is used in target vectors for unsupported
operations which return a pointer value. */
-PTR
-bfd_nullvoidptr (ignore)
- bfd *ignore ATTRIBUTE_UNUSED;
+void *
+_bfd_ptr_bfd_null_error (bfd *ignore ATTRIBUTE_UNUSED)
{
bfd_set_error (bfd_error_invalid_operation);
return NULL;
}
int
-bfd_0 (ignore)
- bfd *ignore ATTRIBUTE_UNUSED;
+_bfd_int_bfd_0 (bfd *ignore ATTRIBUTE_UNUSED)
{
return 0;
}
unsigned int
-bfd_0u (ignore)
- bfd *ignore ATTRIBUTE_UNUSED;
+_bfd_uint_bfd_0 (bfd *ignore ATTRIBUTE_UNUSED)
{
return 0;
}
long
-bfd_0l (ignore)
- bfd *ignore ATTRIBUTE_UNUSED;
+_bfd_long_bfd_0 (bfd *ignore ATTRIBUTE_UNUSED)
{
return 0;
}
operations which return -1 on error. */
long
-_bfd_n1 (ignore_abfd)
- bfd *ignore_abfd ATTRIBUTE_UNUSED;
+_bfd_long_bfd_n1_error (bfd *ignore_abfd ATTRIBUTE_UNUSED)
{
bfd_set_error (bfd_error_invalid_operation);
return -1;
}
void
-bfd_void (ignore)
- bfd *ignore ATTRIBUTE_UNUSED;
+_bfd_void_bfd (bfd *ignore ATTRIBUTE_UNUSED)
+{
+}
+
+void
+_bfd_void_bfd_link (bfd *abfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED)
+{
+}
+
+void
+_bfd_void_bfd_asection (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec ATTRIBUTE_UNUSED)
+{
+}
+
+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;
+}
+
+void
+_bfd_norelocs_set_reloc (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec ATTRIBUTE_UNUSED,
+ arelent **relptr ATTRIBUTE_UNUSED,
+ unsigned int count ATTRIBUTE_UNUSED)
{
+ /* Do nothing. */
}
-boolean
-_bfd_nocore_core_file_matches_executable_p (ignore_core_bfd, ignore_exec_bfd)
- bfd *ignore_core_bfd ATTRIBUTE_UNUSED;
- bfd *ignore_exec_bfd ATTRIBUTE_UNUSED;
+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;
+ return FALSE;
}
/* Routine to handle core_file_failing_command entry point for targets
without core file support. */
char *
-_bfd_nocore_core_file_failing_command (ignore_abfd)
- bfd *ignore_abfd ATTRIBUTE_UNUSED;
+_bfd_nocore_core_file_failing_command (bfd *ignore_abfd ATTRIBUTE_UNUSED)
{
bfd_set_error (bfd_error_invalid_operation);
- return (char *)NULL;
+ return NULL;
}
/* Routine to handle core_file_failing_signal entry point for targets
without core file support. */
int
-_bfd_nocore_core_file_failing_signal (ignore_abfd)
- bfd *ignore_abfd ATTRIBUTE_UNUSED;
+_bfd_nocore_core_file_failing_signal (bfd *ignore_abfd ATTRIBUTE_UNUSED)
+{
+ bfd_set_error (bfd_error_invalid_operation);
+ return 0;
+}
+
+/* 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;
}
-const bfd_target *
-_bfd_dummy_target (ignore_abfd)
- bfd *ignore_abfd ATTRIBUTE_UNUSED;
+bfd_cleanup
+_bfd_dummy_target (bfd *ignore_abfd ATTRIBUTE_UNUSED)
{
bfd_set_error (bfd_error_wrong_format);
return 0;
\f
/* Allocate memory using malloc. */
-PTR
-bfd_malloc (size)
- bfd_size_type size;
+#ifndef SSIZE_MAX
+#define SSIZE_MAX ((size_t) -1 >> 1)
+#endif
+
+void *
+bfd_malloc (bfd_size_type size)
{
- PTR ptr;
+ void *ptr;
+ size_t sz = (size_t) size;
- if (size != (size_t) size)
+ if (size != sz
+ /* This is to pacify memory checkers like valgrind. */
+ || sz > SSIZE_MAX)
{
bfd_set_error (bfd_error_no_memory);
return NULL;
}
- ptr = (PTR) malloc ((size_t) size);
- if (ptr == NULL && (size_t) size != 0)
+ ptr = malloc (sz);
+ if (ptr == NULL && sz != 0)
bfd_set_error (bfd_error_no_memory);
return ptr;
}
-/* Reallocate memory using realloc. */
-
-PTR
-bfd_realloc (ptr, size)
- PTR ptr;
- bfd_size_type size;
+void *
+bfd_realloc (void *ptr, bfd_size_type size)
{
- PTR ret;
-
- if (size != (size_t) size)
- {
- bfd_set_error (bfd_error_no_memory);
- return NULL;
- }
+ void *ret;
+ size_t sz = (size_t) size;
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. */
-
-PTR
-bfd_zmalloc (size)
- bfd_size_type size;
-{
- PTR ptr;
+ return bfd_malloc (size);
- if (size != (size_t) size)
+ if (size != sz
+ /* This is to pacify memory checkers like valgrind. */
+ || sz > SSIZE_MAX)
{
bfd_set_error (bfd_error_no_memory);
return NULL;
}
- ptr = (PTR) malloc ((size_t) size);
+ ret = realloc (ptr, sz);
- if ((size_t) size != 0)
- {
- if (ptr == NULL)
- bfd_set_error (bfd_error_no_memory);
- else
- memset (ptr, 0, (size_t) size);
- }
+ if (ret == NULL && sz != 0)
+ bfd_set_error (bfd_error_no_memory);
- 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.
-
- 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. */
-
-static size_t
-real_read (where, a, b, file)
- PTR where;
- size_t a;
- size_t b;
- FILE *file;
-{
- /* FIXME - this looks like an optimization, but it's really to cover
- up for a feature of some OSs (not solaris - sigh) that
- ld/pe-dll.c takes advantage of (apparently) when it creates BFDs
- internally and tries to link against them. BFD seems to be smart
- enough to realize there are no symbol records in the "file" that
- doesn't exist but attempts to read them anyway. On Solaris,
- attempting to read zero bytes from a NULL file results in a core
- dump, but on other platforms it just returns zero bytes read.
- This makes it to something reasonable. - DJ */
- if (a == 0 || b == 0)
- return 0;
-
-
-#if defined (__VAX) && defined (VMS)
- /* Apparently fread on Vax VMS does not keep the record length
- information. */
- return read (fileno (file), where, a * b);
-#else
- return fread (where, a, b, file);
-#endif
+ return ret;
}
-/* Return value is amount read. */
+/* Reallocate memory using realloc.
+ If this fails the pointer is freed before returning. */
-bfd_size_type
-bfd_bread (ptr, size, abfd)
- PTR ptr;
- bfd_size_type size;
- bfd *abfd;
+void *
+bfd_realloc_or_free (void *ptr, bfd_size_type size)
{
- size_t nread;
-
- if ((abfd->flags & BFD_IN_MEMORY) != 0)
- {
- struct bfd_in_memory *bim;
- bfd_size_type get;
-
- bim = (struct bfd_in_memory *) abfd->iostream;
- get = size;
- if (abfd->where + get > bim->size)
- {
- if (bim->size < (bfd_size_type) abfd->where)
- get = 0;
- else
- get = bim->size - abfd->where;
- bfd_set_error (bfd_error_file_truncated);
- }
- memcpy (ptr, bim->buffer + abfd->where, (size_t) get);
- abfd->where += get;
- return get;
- }
-
- nread = real_read (ptr, 1, (size_t) size, bfd_cache_lookup (abfd));
- if (nread != (size_t) -1)
- abfd->where += nread;
-
- /* Set bfd_error if we did not read as much data as we expected.
-
- If the read failed due to an error set the bfd_error_system_call,
- else set bfd_error_file_truncated.
-
- A BFD backend may wish to override bfd_error_file_truncated to
- provide something more useful (eg. no_symbols or wrong_format). */
- if (nread != size)
- {
- if (ferror (bfd_cache_lookup (abfd)))
- bfd_set_error (bfd_error_system_call);
- else
- bfd_set_error (bfd_error_file_truncated);
- }
-
- return nread;
-}
+ void *ret = bfd_realloc (ptr, size);
-/* The window support stuff should probably be broken out into
- another file.... */
-/* The idea behind the next and refcount fields is that one mapped
- region can suffice for multiple read-only windows or multiple
- non-overlapping read-write windows. It's not implemented yet
- though. */
-struct _bfd_window_internal {
- struct _bfd_window_internal *next;
- PTR data;
- bfd_size_type size;
- int refcount : 31; /* should be enough... */
- unsigned mapped : 1; /* 1 = mmap, 0 = malloc */
-};
+ if (ret == NULL)
+ free (ptr);
-void
-bfd_init_window (windowp)
- bfd_window *windowp;
-{
- windowp->data = 0;
- windowp->i = 0;
- windowp->size = 0;
+ return ret;
}
-\f
-/* Currently, if USE_MMAP is undefined, none if the window stuff is
- used. Okay, so it's mis-named. At least the command-line option
- "--without-mmap" is more obvious than "--without-windows" or some
- such. */
-#ifdef USE_MMAP
-
-#undef HAVE_MPROTECT /* code's not tested yet */
-
-#if HAVE_MMAP || HAVE_MPROTECT || HAVE_MADVISE
-#include <sys/mman.h>
-#endif
-
-#ifndef MAP_FILE
-#define MAP_FILE 0
-#endif
-
-static int debug_windows;
-
-void
-bfd_free_window (windowp)
- bfd_window *windowp;
-{
- bfd_window_internal *i = windowp->i;
- windowp->i = 0;
- windowp->data = 0;
- if (i == 0)
- return;
- i->refcount--;
- if (debug_windows)
- fprintf (stderr, "freeing window @%p<%p,%lx,%p>\n",
- windowp, windowp->data, windowp->size, windowp->i);
- if (i->refcount != 0)
- return;
-
- if (i->mapped)
- {
-#ifdef HAVE_MMAP
- munmap (i->data, i->size);
- goto no_free;
-#else
- abort ();
-#endif
- }
-#ifdef HAVE_MPROTECT
- mprotect (i->data, i->size, PROT_READ | PROT_WRITE);
-#endif
- free (i->data);
-#ifdef HAVE_MMAP
- no_free:
-#endif
- i->data = 0;
- /* There should be no more references to i at this point. */
- free (i);
-}
-
-static int ok_to_map = 1;
-
-boolean
-bfd_get_file_window (abfd, offset, size, windowp, writable)
- bfd *abfd;
- file_ptr offset;
- bfd_size_type size;
- bfd_window *windowp;
- boolean writable;
-{
- static size_t pagesize;
- bfd_window_internal *i = windowp->i;
- bfd_size_type size_to_alloc = size;
-
- if (debug_windows)
- fprintf (stderr, "bfd_get_file_window (%p, %6ld, %6ld, %p<%p,%lx,%p>, %d)",
- abfd, (long) offset, (long) size,
- windowp, windowp->data, (unsigned long) windowp->size,
- windowp->i, writable);
-
- /* Make sure we know the page size, so we can be friendly to mmap. */
- if (pagesize == 0)
- pagesize = getpagesize ();
- if (pagesize == 0)
- abort ();
- if (i == 0)
- {
- i = ((bfd_window_internal *)
- bfd_zmalloc ((bfd_size_type) sizeof (bfd_window_internal)));
- windowp->i = i;
- if (i == 0)
- return false;
- i->data = 0;
- }
-#ifdef HAVE_MMAP
- if (ok_to_map
- && (i->data == 0 || i->mapped == 1)
- && (abfd->flags & BFD_IN_MEMORY) == 0)
- {
- file_ptr file_offset, offset2;
- size_t real_size;
- int fd;
- FILE *f;
-
- /* Find the real file and the real offset into it. */
- while (abfd->my_archive != NULL)
- {
- offset += abfd->origin;
- abfd = abfd->my_archive;
- }
- f = bfd_cache_lookup (abfd);
- fd = fileno (f);
-
- /* Compute offsets and size for mmap and for the user's data. */
- offset2 = offset % pagesize;
- if (offset2 < 0)
- abort ();
- file_offset = offset - offset2;
- real_size = offset + size - file_offset;
- real_size = real_size + pagesize - 1;
- real_size -= real_size % pagesize;
-
- /* If we're re-using a memory region, make sure it's big enough. */
- if (i->data && i->size < size)
- {
- munmap (i->data, i->size);
- i->data = 0;
- }
- i->data = mmap (i->data, real_size,
- writable ? PROT_WRITE | PROT_READ : PROT_READ,
- (writable
- ? MAP_FILE | MAP_PRIVATE
- : MAP_FILE | MAP_SHARED),
- fd, file_offset);
- if (i->data == (PTR) -1)
- {
- /* An error happened. Report it, or try using malloc, or
- something. */
- bfd_set_error (bfd_error_system_call);
- i->data = 0;
- windowp->data = 0;
- if (debug_windows)
- fprintf (stderr, "\t\tmmap failed!\n");
- return false;
- }
- if (debug_windows)
- fprintf (stderr, "\n\tmapped %ld at %p, offset is %ld\n",
- (long) real_size, i->data, (long) offset2);
- i->size = real_size;
- windowp->data = (PTR) ((bfd_byte *) i->data + offset2);
- windowp->size = size;
- i->mapped = 1;
- return true;
- }
- else if (debug_windows)
- {
- if (ok_to_map)
- fprintf (stderr, _("not mapping: data=%lx mapped=%d\n"),
- (unsigned long) i->data, (int) i->mapped);
- else
- fprintf (stderr, _("not mapping: env var not set\n"));
- }
-#else
- ok_to_map = 0;
-#endif
-
-#ifdef HAVE_MPROTECT
- if (!writable)
- {
- size_to_alloc += pagesize - 1;
- size_to_alloc -= size_to_alloc % pagesize;
- }
-#endif
- if (debug_windows)
- fprintf (stderr, "\n\t%s(%6ld)",
- i->data ? "realloc" : " malloc", (long) size_to_alloc);
- i->data = (PTR) bfd_realloc (i->data, size_to_alloc);
- if (debug_windows)
- fprintf (stderr, "\t-> %p\n", i->data);
- i->refcount = 1;
- if (i->data == NULL)
- {
- if (size_to_alloc == 0)
- return true;
- return false;
- }
- if (bfd_seek (abfd, offset, SEEK_SET) != 0)
- return false;
- i->size = bfd_bread (i->data, size, abfd);
- if (i->size != size)
- return false;
- i->mapped = 0;
-#ifdef HAVE_MPROTECT
- if (!writable)
- {
- if (debug_windows)
- fprintf (stderr, "\tmprotect (%p, %ld, PROT_READ)\n", i->data,
- (long) i->size);
- mprotect (i->data, i->size, PROT_READ);
- }
-#endif
- windowp->data = i->data;
- windowp->size = i->size;
- return true;
-}
+/* Allocate memory using malloc and clear it. */
-#endif /* USE_MMAP */
-\f
-bfd_size_type
-bfd_bwrite (ptr, size, abfd)
- const PTR ptr;
- bfd_size_type size;
- bfd *abfd;
+void *
+bfd_zmalloc (bfd_size_type size)
{
- size_t nwrote;
+ void *ptr = bfd_malloc (size);
- if ((abfd->flags & BFD_IN_MEMORY) != 0)
- {
- struct bfd_in_memory *bim = (struct bfd_in_memory *) (abfd->iostream);
- size = (size_t) size;
- if (abfd->where + size > bim->size)
- {
- bfd_size_type newsize, oldsize;
-
- oldsize = (bim->size + 127) & ~(bfd_size_type) 127;
- bim->size = abfd->where + size;
- /* Round up to cut down on memory fragmentation */
- newsize = (bim->size + 127) & ~(bfd_size_type) 127;
- if (newsize > oldsize)
- {
- bim->buffer = bfd_realloc (bim->buffer, newsize);
- if (bim->buffer == 0)
- {
- bim->size = 0;
- return 0;
- }
- }
- }
- memcpy (bim->buffer + abfd->where, ptr, (size_t) size);
- abfd->where += size;
- return size;
- }
+ if (ptr != NULL && size > 0)
+ memset (ptr, 0, (size_t) size);
- nwrote = fwrite (ptr, 1, (size_t) size, bfd_cache_lookup (abfd));
- if (nwrote != (size_t) -1)
- abfd->where += nwrote;
- if (nwrote != size)
- {
-#ifdef ENOSPC
- errno = ENOSPC;
-#endif
- bfd_set_error (bfd_error_system_call);
- }
- return nwrote;
+ return ptr;
}
/*
bfd_write_bigendian_4byte_int
SYNOPSIS
- boolean bfd_write_bigendian_4byte_int (bfd *, unsigned int);
+ 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
archives.
*/
-boolean
-bfd_write_bigendian_4byte_int (abfd, i)
- bfd *abfd;
- unsigned int i;
+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 ((PTR) buffer, (bfd_size_type) 4, abfd) == 4;
-}
-
-bfd_vma
-bfd_tell (abfd)
- bfd *abfd;
-{
- file_ptr ptr;
-
- if ((abfd->flags & BFD_IN_MEMORY) != 0)
- return abfd->where;
-
- ptr = ftell (bfd_cache_lookup (abfd));
-
- if (abfd->my_archive)
- ptr -= abfd->origin;
- abfd->where = ptr;
- return ptr;
+ return bfd_bwrite (buffer, (bfd_size_type) 4, abfd) == 4;
}
-int
-bfd_flush (abfd)
- bfd *abfd;
-{
- if ((abfd->flags & BFD_IN_MEMORY) != 0)
- return 0;
- return fflush (bfd_cache_lookup(abfd));
-}
-
-/* Returns 0 for success, negative value for failure (in which case
- bfd_get_error can retrieve the error code). */
-int
-bfd_stat (abfd, statbuf)
- bfd *abfd;
- struct stat *statbuf;
-{
- FILE *f;
- int result;
-
- if ((abfd->flags & BFD_IN_MEMORY) != 0)
- abort ();
-
- f = bfd_cache_lookup (abfd);
- if (f == NULL)
- {
- bfd_set_error (bfd_error_system_call);
- return -1;
- }
- result = fstat (fileno (f), statbuf);
- if (result < 0)
- bfd_set_error (bfd_error_system_call);
- return result;
-}
-
-/* Returns 0 for success, nonzero for failure (in which case bfd_get_error
- can retrieve the error code). */
-
-int
-bfd_seek (abfd, position, direction)
- bfd *abfd;
- file_ptr position;
- int direction;
-{
- int result;
- FILE *f;
- long 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;
-
- if ((abfd->flags & BFD_IN_MEMORY) != 0)
- {
- struct bfd_in_memory *bim;
-
- bim = (struct bfd_in_memory *) abfd->iostream;
-
- if (direction == SEEK_SET)
- abfd->where = position;
- else
- abfd->where += position;
-
- if (abfd->where > bim->size)
- {
- if ((abfd->direction == write_direction) ||
- (abfd->direction == both_direction))
- {
- bfd_size_type newsize, oldsize;
- oldsize = (bim->size + 127) & ~(bfd_size_type) 127;
- bim->size = abfd->where;
- /* Round up to cut down on memory fragmentation */
- newsize = (bim->size + 127) & ~(bfd_size_type) 127;
- if (newsize > oldsize)
- {
- bim->buffer = bfd_realloc (bim->buffer, newsize);
- if (bim->buffer == 0)
- {
- bim->size = 0;
- return -1;
- }
- }
- }
- else
- {
- abfd->where = bim->size;
- bfd_set_error (bfd_error_file_truncated);
- return -1;
- }
- }
- return 0;
- }
-
- if (abfd->format != bfd_archive && abfd->my_archive == 0)
- {
-#if 0
- /* 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 && (bfd_vma) position == abfd->where)
- return 0;
- }
- 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.
-
- In the meantime, no optimization for archives. */
- }
-
- 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);
- if (result != 0)
- {
- int hold_errno = errno;
-
- /* Force redetermination of `where' field. */
- bfd_tell (abfd);
-
- /* An EINVAL error probably means that the file offset was
- absurd. */
- if (hold_errno == EINVAL)
- bfd_set_error (bfd_error_file_truncated);
- else
- {
- bfd_set_error (bfd_error_system_call);
- errno = hold_errno;
- }
- }
- else
- {
- /* Adjust `where' field. */
- if (direction == SEEK_SET)
- abfd->where = position;
- else
- abfd->where += position;
- }
- return result;
-}
\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__.
- Gprof them later and find out. */
+ functions in swap.h #ifdef __GNUC__.
+ Gprof them later and find out. */
/*
FUNCTION
.{* Byte swapping macros for user section data. *}
.
.#define bfd_put_8(abfd, val, ptr) \
-. ((void) (*((unsigned char *) (ptr)) = (unsigned char) (val)))
+. ((void) (*((unsigned char *) (ptr)) = (val) & 0xff))
.#define bfd_put_signed_8 \
-. bfd_put_8
+. bfd_put_8
.#define bfd_get_8(abfd, ptr) \
-. (*(unsigned char *) (ptr) & 0xff)
+. ((bfd_vma) *(const unsigned char *) (ptr) & 0xff)
.#define bfd_get_signed_8(abfd, ptr) \
-. (((*(unsigned char *) (ptr) & 0xff) ^ 0x80) - 0x80)
+. ((((bfd_signed_vma) *(const unsigned char *) (ptr) & 0xff) ^ 0x80) - 0x80)
.
.#define bfd_put_16(abfd, val, ptr) \
-. BFD_SEND(abfd, bfd_putx16, ((val),(ptr)))
+. BFD_SEND (abfd, bfd_putx16, ((val),(ptr)))
.#define bfd_put_signed_16 \
-. bfd_put_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_24(abfd, val, ptr) \
+. do \
+. if (bfd_big_endian (abfd)) \
+. bfd_putb24 ((val), (ptr)); \
+. else \
+. bfd_putl24 ((val), (ptr)); \
+. while (0)
+.
+.bfd_vma bfd_getb24 (const void *p);
+.bfd_vma bfd_getl24 (const void *p);
+.
+.#define bfd_get_24(abfd, ptr) \
+. (bfd_big_endian (abfd) ? bfd_getb24 (ptr) : bfd_getl24 (ptr))
.
.#define bfd_put_32(abfd, val, ptr) \
-. BFD_SEND(abfd, bfd_putx32, ((val),(ptr)))
+. BFD_SEND (abfd, bfd_putx32, ((val),(ptr)))
.#define bfd_put_signed_32 \
-. bfd_put_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)))
+. BFD_SEND (abfd, bfd_putx64, ((val), (ptr)))
.#define bfd_put_signed_64 \
-. bfd_put_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_get(bits, abfd, ptr) \
+. ((bits) == 8 ? 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))
+.#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))
.
*/
.#define bfd_h_get_signed_64(abfd, ptr) \
. BFD_SEND (abfd, bfd_h_getx_signed_64, (ptr))
.
-.{* Refinements on the above, which should eventually go away. Save
-. cluttering the source with (bfd_vma) and (bfd_byte *) casts. *}
-.
-.#define H_PUT_64(abfd, val, where) \
-. bfd_h_put_64 ((abfd), (bfd_vma) (val), (bfd_byte *) (where))
-.
-.#define H_PUT_32(abfd, val, where) \
-. bfd_h_put_32 ((abfd), (bfd_vma) (val), (bfd_byte *) (where))
-.
-.#define H_PUT_16(abfd, val, where) \
-. bfd_h_put_16 ((abfd), (bfd_vma) (val), (bfd_byte *) (where))
+.{* Aliases for the above, which should eventually go away. *}
.
-.#define H_PUT_8 bfd_h_put_8
-.
-.#define H_PUT_S64(abfd, val, where) \
-. bfd_h_put_signed_64 ((abfd), (bfd_vma) (val), (bfd_byte *) (where))
-.
-.#define H_PUT_S32(abfd, val, where) \
-. bfd_h_put_signed_32 ((abfd), (bfd_vma) (val), (bfd_byte *) (where))
-.
-.#define H_PUT_S16(abfd, val, where) \
-. bfd_h_put_signed_16 ((abfd), (bfd_vma) (val), (bfd_byte *) (where))
-.
-.#define H_PUT_S8 bfd_h_put_signed_8
-.
-.#define H_GET_64(abfd, where) \
-. bfd_h_get_64 ((abfd), (bfd_byte *) (where))
-.
-.#define H_GET_32(abfd, where) \
-. bfd_h_get_32 ((abfd), (bfd_byte *) (where))
-.
-.#define H_GET_16(abfd, where) \
-. bfd_h_get_16 ((abfd), (bfd_byte *) (where))
-.
-.#define H_GET_8 bfd_h_get_8
-.
-.#define H_GET_S64(abfd, where) \
-. bfd_h_get_signed_64 ((abfd), (bfd_byte *) (where))
-.
-.#define H_GET_S32(abfd, where) \
-. bfd_h_get_signed_32 ((abfd), (bfd_byte *) (where))
-.
-.#define H_GET_S16(abfd, where) \
-. bfd_h_get_signed_16 ((abfd), (bfd_byte *) (where))
-.
-.#define H_GET_S8 bfd_h_get_signed_8
+.#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) (long) (((unsigned long) (x) ^ 0x80000000) - 0x80000000))
-#define EIGHT_GAZILLION (((BFD_HOST_64_BIT)0x80000000) << 32)
+#define COERCE16(x) (((bfd_vma) (x) ^ 0x8000) - 0x8000)
+#define COERCE32(x) (((bfd_vma) (x) ^ 0x80000000) - 0x80000000)
#define COERCE64(x) \
- (((bfd_signed_vma) (x) ^ EIGHT_GAZILLION) - EIGHT_GAZILLION)
+ (((bfd_uint64_t) (x) ^ ((bfd_uint64_t) 1 << 63)) - ((bfd_uint64_t) 1 << 63))
bfd_vma
-bfd_getb16 (addr)
- register const bfd_byte *addr;
+bfd_getb16 (const void *p)
{
+ const bfd_byte *addr = (const bfd_byte *) p;
return (addr[0] << 8) | addr[1];
}
bfd_vma
-bfd_getl16 (addr)
- register const bfd_byte *addr;
+bfd_getl16 (const void *p)
{
+ const bfd_byte *addr = (const bfd_byte *) p;
return (addr[1] << 8) | addr[0];
}
bfd_signed_vma
-bfd_getb_signed_16 (addr)
- register const 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
-bfd_getl_signed_16 (addr)
- register const bfd_byte *addr;
+bfd_getl_signed_16 (const void *p)
+{
+ const bfd_byte *addr = (const bfd_byte *) p;
+ return COERCE16 ((addr[1] << 8) | addr[0]);
+}
+
+void
+bfd_putb16 (bfd_vma data, void *p)
+{
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[0] = (data >> 8) & 0xff;
+ addr[1] = data & 0xff;
+}
+
+void
+bfd_putl16 (bfd_vma data, void *p)
{
- return COERCE16((addr[1] << 8) | addr[0]);
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[0] = data & 0xff;
+ addr[1] = (data >> 8) & 0xff;
}
void
-bfd_putb16 (data, addr)
- bfd_vma data;
- register bfd_byte *addr;
+bfd_putb24 (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 >> 16) & 0xff;
+ addr[1] = (data >> 8) & 0xff;
+ addr[2] = data & 0xff;
}
void
-bfd_putl16 (data, addr)
- bfd_vma data;
- register bfd_byte *addr;
+bfd_putl24 (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;
+ addr[2] = (data >> 16) & 0xff;
}
bfd_vma
-bfd_getb32 (addr)
- register const bfd_byte *addr;
+bfd_getb24 (const void *p)
{
+ const bfd_byte *addr = (const bfd_byte *) p;
+ unsigned long v;
+
+ v = (unsigned long) addr[0] << 16;
+ v |= (unsigned long) addr[1] << 8;
+ v |= (unsigned long) addr[2];
+ return v;
+}
+
+bfd_vma
+bfd_getl24 (const void *p)
+{
+ 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;
+ return v;
+}
+
+bfd_vma
+bfd_getb32 (const void *p)
+{
+ 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 (bfd_vma) v;
+ return v;
}
bfd_vma
-bfd_getl32 (addr)
- register const bfd_byte *addr;
+bfd_getl32 (const void *p)
{
+ 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 (bfd_vma) v;
+ return v;
}
bfd_signed_vma
-bfd_getb_signed_32 (addr)
- register const bfd_byte *addr;
+bfd_getb_signed_32 (const void *p)
{
+ const bfd_byte *addr = (const bfd_byte *) p;
unsigned long v;
v = (unsigned long) addr[0] << 24;
}
bfd_signed_vma
-bfd_getl_signed_32 (addr)
- register const bfd_byte *addr;
+bfd_getl_signed_32 (const void *p)
{
+ const bfd_byte *addr = (const bfd_byte *) p;
unsigned long v;
v = (unsigned long) addr[0];
return COERCE32 (v);
}
-bfd_vma
-bfd_getb64 (addr)
- register const bfd_byte *addr ATTRIBUTE_UNUSED;
+bfd_uint64_t
+bfd_getb64 (const void *p ATTRIBUTE_UNUSED)
{
-#ifdef BFD64
- bfd_vma low, high;
-
- high= ((((((((addr[0]) << 8) |
- addr[1]) << 8) |
- addr[2]) << 8) |
- addr[3]) );
-
- low = (((((((((bfd_vma)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
-bfd_getl64 (addr)
- register const bfd_byte *addr ATTRIBUTE_UNUSED;
-{
-#ifdef BFD64
- bfd_vma low, high;
- high= (((((((addr[7] << 8) |
- addr[6]) << 8) |
- addr[5]) << 8) |
- addr[4]));
-
- low = ((((((((bfd_vma)addr[3] << 8) |
- addr[2]) << 8) |
- addr[1]) << 8) |
- addr[0]) );
-
- return high << 32 | low;
+bfd_uint64_t
+bfd_getl64 (const void *p ATTRIBUTE_UNUSED)
+{
+#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
-bfd_getb_signed_64 (addr)
- register const bfd_byte *addr ATTRIBUTE_UNUSED;
+bfd_int64_t
+bfd_getb_signed_64 (const void *p ATTRIBUTE_UNUSED)
{
-#ifdef BFD64
- bfd_vma low, high;
-
- high= ((((((((addr[0]) << 8) |
- addr[1]) << 8) |
- addr[2]) << 8) |
- addr[3]) );
-
- low = (((((((((bfd_vma)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
-bfd_getl_signed_64 (addr)
- register const bfd_byte *addr ATTRIBUTE_UNUSED;
-{
-#ifdef BFD64
- bfd_vma low, high;
- high= (((((((addr[7] << 8) |
- addr[6]) << 8) |
- addr[5]) << 8) |
- addr[4]));
-
- low = ((((((((bfd_vma)addr[3] << 8) |
- addr[2]) << 8) |
- addr[1]) << 8) |
- addr[0]) );
-
- return COERCE64(high << 32 | low);
+bfd_int64_t
+bfd_getl_signed_64 (const void *p ATTRIBUTE_UNUSED)
+{
+#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;
}
void
-bfd_putb32 (data, addr)
- bfd_vma data;
- 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
-bfd_putl32 (data, addr)
- bfd_vma data;
- 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
-bfd_putb64 (data, addr)
- bfd_vma data ATTRIBUTE_UNUSED;
- register bfd_byte *addr ATTRIBUTE_UNUSED;
-{
-#ifdef BFD64
- 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
-bfd_putl64 (data, addr)
- bfd_vma data ATTRIBUTE_UNUSED;
- register bfd_byte *addr ATTRIBUTE_UNUSED;
-{
-#ifdef BFD64
- 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 (data, addr, bits, big_p)
- bfd_vma data;
- bfd_byte *addr;
- int bits;
- boolean big_p;
+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;
bytes = bits / 8;
for (i = 0; i < bytes; i++)
{
- int index = big_p ? bytes - i - 1 : i;
+ int addr_index = big_p ? bytes - i - 1 : i;
- addr[index] = (bfd_byte) data;
+ addr[addr_index] = data & 0xff;
data >>= 8;
}
}
-bfd_vma
-bfd_get_bits (addr, bits, big_p)
- bfd_byte *addr;
- int bits;
- boolean big_p;
+bfd_uint64_t
+bfd_get_bits (const void *p, int bits, bfd_boolean big_p)
{
- bfd_vma data;
+ const bfd_byte *addr = (const bfd_byte *) p;
+ bfd_uint64_t data;
int i;
int bytes;
bytes = bits / 8;
for (i = 0; i < bytes; i++)
{
- int index = big_p ? i : bytes - i - 1;
+ int addr_index = big_p ? i : bytes - i - 1;
- data = (data << 8) | addr[index];
+ data = (data << 8) | addr[addr_index];
}
return data;
\f
/* Default implementation */
-boolean
-_bfd_generic_get_section_contents (abfd, section, location, offset, count)
- bfd *abfd;
- sec_ptr section;
- PTR location;
- file_ptr offset;
- 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)
{
+ bfd_size_type sz;
if (count == 0)
- return true;
+ return TRUE;
- if (offset + count > section->_raw_size)
+ if (section->compress_status != COMPRESS_SECTION_NONE)
{
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: unable to get decompressed section %pA"),
+ abfd, section);
bfd_set_error (bfd_error_invalid_operation);
- return false;
+ return FALSE;
+ }
+
+ /* We do allow reading of a section after bfd_final_link has
+ written the contents out to disk. In that situation, rawsize is
+ just a stale version of size, so ignore it. Otherwise we must be
+ reading an input section, where rawsize, if different to size,
+ is the on-disk size. */
+ if (abfd->direction != write_direction && section->rawsize != 0)
+ sz = section->rawsize;
+ else
+ sz = section->size;
+ if (offset + count < count
+ || offset + count > sz
+ || (abfd->my_archive != NULL
+ && !bfd_is_thin_archive (abfd->my_archive)
+ && ((ufile_ptr) section->filepos + offset + count
+ > arelt_size (abfd))))
+ {
+ 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 FALSE;
- return true;
+ return TRUE;
}
-boolean
-_bfd_generic_get_section_contents_in_window (abfd, section, w, offset, count)
- 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;
+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)
+ 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
/* @@ 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_window_internal *)
- bfd_zmalloc ((bfd_size_type) sizeof (bfd_window_internal)));
+ w->i = bfd_zmalloc (sizeof (bfd_window_internal));
if (w->i == NULL)
- return false;
- w->i->data = (PTR) bfd_malloc (count);
+ return FALSE;
+ w->i->data = bfd_malloc (count);
if (w->i->data == NULL)
{
free (w->i);
w->i = NULL;
- return false;
+ return FALSE;
}
w->i->mapped = 0;
w->i->refcount = 1;
w->data = w->i->data;
return bfd_get_section_contents (abfd, section, w->data, offset, count);
}
- if (offset + count > section->_raw_size
+ if (abfd->direction != write_direction && section->rawsize != 0)
+ sz = section->rawsize;
+ else
+ sz = section->size;
+ if (offset + count < count
+ || offset + count > sz
+ || (abfd->my_archive != NULL
+ && !bfd_is_thin_archive (abfd->my_archive)
+ && ((ufile_ptr) section->filepos + offset + count
+ > arelt_size (abfd)))
|| ! bfd_get_file_window (abfd, section->filepos + offset, count, w,
- true))
- return false;
- return true;
+ TRUE))
+ return FALSE;
+ return TRUE;
#else
abort ();
#endif
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
-_bfd_generic_set_section_contents (abfd, section, location, offset, count)
- bfd *abfd;
- sec_ptr section;
- PTR location;
- file_ptr offset;
- bfd_size_type count;
+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;
+ return TRUE;
if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
|| bfd_bwrite (location, count, abfd) != count)
- return false;
+ return FALSE;
- return true;
+ return TRUE;
}
/*
*/
unsigned int
-bfd_log2 (x)
- bfd_vma x;
+bfd_log2 (bfd_vma x)
{
unsigned int result = 0;
- while ((x = (x >> 1)) != 0)
+ if (x <= 1)
+ return result;
+ --x;
+ do
++result;
+ while ((x >>= 1) != 0);
return result;
}
-boolean
-bfd_generic_is_local_label_name (abfd, name)
- bfd *abfd;
- const char *name;
+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. */
-boolean
-_bfd_generic_verify_endian_match (ibfd, obfd)
- 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 = _("%s: 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");
-
- (*_bfd_error_handler) (msg, bfd_archive_filename (ibfd));
-
- bfd_set_error (bfd_error_wrong_format);
- return false;
- }
-
- return true;
+ return name[0] == locals_prefix;
}
/* Give a warning at runtime if someone compiles code which calls
old routines. */
void
-warn_deprecated (what, file, line, func)
- const char *what;
- const char *file;
- int line;
- const char *func;
+_bfd_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: seperate sentances in order to allow
+ fflush (stdout);
+ /* Note: separate sentences in order to allow
for translation into other languages. */
if (func)
+ /* xgettext:c-format */
fprintf (stderr, _("Deprecated %s called at %s line %d in %s\n"),
what, file, line, func);
else
fprintf (stderr, _("Deprecated %s called\n"), what);
+ fflush (stderr);
mask |= ~(size_t) func;
}
}
+
+/* Helper function for reading uleb128 encoded data. */
+
+bfd_vma
+_bfd_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;
+}
+
+/* Read in a LEB128 encoded value from ABFD starting at DATA.
+ If SIGN is true, return a signed LEB128 value.
+ If LENGTH_RETURN is not NULL, return in it the number of bytes read.
+ No bytes will be read at address END or beyond. */
+
+bfd_vma
+_bfd_safe_read_leb128 (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_byte *data,
+ unsigned int *length_return,
+ bfd_boolean sign,
+ const bfd_byte * const end)
+{
+ bfd_vma result = 0;
+ unsigned int num_read = 0;
+ unsigned int shift = 0;
+ unsigned char byte = 0;
+
+ while (data < end)
+ {
+ byte = bfd_get_8 (abfd, data);
+ data++;
+ num_read++;
+
+ result |= ((bfd_vma) (byte & 0x7f)) << shift;
+
+ shift += 7;
+ if ((byte & 0x80) == 0)
+ break;
+ }
+
+ if (length_return != NULL)
+ *length_return = num_read;
+
+ if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40))
+ result |= -((bfd_vma) 1 << shift);
+
+ return result;
+}
+
+/* Helper function for reading sleb128 encoded data. */
+
+bfd_signed_vma
+_bfd_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_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 / deliverable / binutils-gdb.git / blobdiff