#define getpagesize() 2048
#endif
-static size_t real_read PARAMS ((PTR, size_t, size_t, FILE *));
-
/*
SECTION
Internal functions
/* A routine which is used in target vectors for unsupported
operations. */
-boolean
+bfd_boolean
bfd_false (ignore)
bfd *ignore ATTRIBUTE_UNUSED;
{
bfd_set_error (bfd_error_invalid_operation);
- return false;
+ return FALSE;
}
/* A routine which is used in target vectors for supported operations
which do not actually do anything. */
-boolean
+bfd_boolean
bfd_true (ignore)
bfd *ignore ATTRIBUTE_UNUSED;
{
- return true;
+ return TRUE;
}
/* A routine which is used in target vectors for unsupported
{
}
-boolean
+bfd_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_set_error (bfd_error_invalid_operation);
- return false;
+ return FALSE;
}
/* Routine to handle core_file_failing_command entry point for targets
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 value is amount read. */
-
-bfd_size_type
-bfd_bread (ptr, size, abfd)
- PTR ptr;
- bfd_size_type size;
- bfd *abfd;
-{
- 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;
-}
-
-/* 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 */
-};
-
-void
-bfd_init_window (windowp)
- bfd_window *windowp;
-{
- windowp->data = 0;
- windowp->i = 0;
- windowp->size = 0;
-}
-\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;
-}
-
-#endif /* USE_MMAP */
-\f
-bfd_size_type
-bfd_bwrite (ptr, size, abfd)
- const PTR ptr;
- bfd_size_type size;
- bfd *abfd;
-{
- size_t nwrote;
-
- 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_byte *) 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;
- }
-
- 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;
-}
-
/*
INTERNAL_FUNCTION
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_boolean
bfd_write_bigendian_4byte_int (abfd, i)
bfd *abfd;
unsigned int i;
{
bfd_byte buffer[4];
bfd_putb32 ((bfd_vma) i, buffer);
- return (boolean) (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 ((PTR) 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_byte *) 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 */
bfd_vma data;
bfd_byte *addr;
int bits;
- boolean big_p;
+ bfd_boolean big_p;
{
int i;
int bytes;
bfd_get_bits (addr, bits, big_p)
bfd_byte *addr;
int bits;
- boolean big_p;
+ bfd_boolean big_p;
{
bfd_vma data;
int i;
\f
/* Default implementation */
-boolean
+bfd_boolean
_bfd_generic_get_section_contents (abfd, section, location, offset, count)
bfd *abfd;
sec_ptr section;
bfd_size_type count;
{
if (count == 0)
- return true;
+ return TRUE;
if (offset + count > section->_raw_size)
{
bfd_set_error (bfd_error_invalid_operation);
- return false;
+ 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_boolean
_bfd_generic_get_section_contents_in_window (abfd, section, w, offset, count)
bfd *abfd ATTRIBUTE_UNUSED;
sec_ptr section ATTRIBUTE_UNUSED;
{
#ifdef USE_MMAP
if (count == 0)
- return true;
+ 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
w->i = ((bfd_window_internal *)
bfd_zmalloc ((bfd_size_type) sizeof (bfd_window_internal)));
if (w->i == NULL)
- return false;
+ return FALSE;
w->i->data = (PTR) 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;
}
if (offset + count > section->_raw_size
|| ! 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_boolean
_bfd_generic_set_section_contents (abfd, section, location, offset, count)
bfd *abfd;
sec_ptr section;
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;
}
/*
return result;
}
-boolean
+bfd_boolean
bfd_generic_is_local_label_name (abfd, name)
bfd *abfd;
const char *name;
{
char locals_prefix = (bfd_get_symbol_leading_char (abfd) == '_') ? 'L' : '.';
- return (boolean) (name[0] == locals_prefix);
+ 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
+ TRUE for a match, otherwise returns FALSE and emits an error. */
+bfd_boolean
_bfd_generic_verify_endian_match (ibfd, obfd)
bfd *ibfd;
bfd *obfd;
(*_bfd_error_handler) (msg, bfd_archive_filename (ibfd));
bfd_set_error (bfd_error_wrong_format);
- return false;
+ return FALSE;
}
- return true;
+ return TRUE;
}
/* Give a warning at runtime if someone compiles code which calls
if (~(size_t) func & ~mask)
{
- /* Note: seperate sentances in order to allow
+ /* 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"),
projects / deliverable / binutils-gdb.git / blobdiff