/* Assorted BFD support routines, only used internally.
- Copyright (C) 1990-2017 Free Software Foundation, Inc.
+ Copyright (C) 1990-2021 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
completeness.
*/
+bool
+_bfd_bool_bfd_false (bfd *abfd ATTRIBUTE_UNUSED)
+{
+ return false;
+}
+
+bool
+_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. */
-bfd_boolean
-bfd_false (bfd *ignore ATTRIBUTE_UNUSED)
+bool
+_bfd_bool_bfd_false_error (bfd *ignore ATTRIBUTE_UNUSED)
{
bfd_set_error (bfd_error_invalid_operation);
- return FALSE;
+ return false;
+}
+
+bool
+_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. */
-bfd_boolean
-bfd_true (bfd *ignore ATTRIBUTE_UNUSED)
+bool
+_bfd_bool_bfd_true (bfd *ignore ATTRIBUTE_UNUSED)
+{
+ return true;
+}
+
+bool
+_bfd_bool_bfd_link_true (bfd *abfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED)
+{
+ return true;
+}
+
+bool
+_bfd_bool_bfd_bfd_true (bfd *ibfd ATTRIBUTE_UNUSED,
+ bfd *obfd ATTRIBUTE_UNUSED)
+{
+ return true;
+}
+
+bool
+_bfd_bool_bfd_uint_true (bfd *abfd ATTRIBUTE_UNUSED,
+ unsigned int flags ATTRIBUTE_UNUSED)
+{
+ return true;
+}
+
+bool
+_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;
+}
+
+bool
+_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;
+ return true;
+}
+
+bool
+_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. */
void *
-bfd_nullvoidptr (bfd *ignore ATTRIBUTE_UNUSED)
+_bfd_ptr_bfd_null_error (bfd *ignore ATTRIBUTE_UNUSED)
{
bfd_set_error (bfd_error_invalid_operation);
return NULL;
}
int
-bfd_0 (bfd *ignore ATTRIBUTE_UNUSED)
+_bfd_int_bfd_0 (bfd *ignore ATTRIBUTE_UNUSED)
{
return 0;
}
unsigned int
-bfd_0u (bfd *ignore ATTRIBUTE_UNUSED)
+_bfd_uint_bfd_0 (bfd *ignore ATTRIBUTE_UNUSED)
{
return 0;
}
long
-bfd_0l (bfd *ignore ATTRIBUTE_UNUSED)
+_bfd_long_bfd_0 (bfd *ignore ATTRIBUTE_UNUSED)
{
return 0;
}
operations which return -1 on error. */
long
-_bfd_n1 (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 (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)
{
}
void
_bfd_norelocs_set_reloc (bfd *abfd ATTRIBUTE_UNUSED,
- asection *sec ATTRIBUTE_UNUSED,
- arelent **relptr ATTRIBUTE_UNUSED,
- unsigned int count ATTRIBUTE_UNUSED)
+ asection *sec ATTRIBUTE_UNUSED,
+ arelent **relptr ATTRIBUTE_UNUSED,
+ unsigned int count ATTRIBUTE_UNUSED)
{
/* Do nothing. */
}
-bfd_boolean
+bool
_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
return 0;
}
-const bfd_target *
+bfd_cleanup
_bfd_dummy_target (bfd *ignore_abfd ATTRIBUTE_UNUSED)
{
bfd_set_error (bfd_error_wrong_format);
\f
/* Allocate memory using malloc. */
+#ifndef SSIZE_MAX
+#define SSIZE_MAX ((size_t) -1 >> 1)
+#endif
+
+/*
+INTERNAL_FUNCTION
+ bfd_malloc
+
+SYNOPSIS
+ extern void * bfd_malloc (bfd_size_type SIZE) ATTRIBUTE_HIDDEN;
+
+DESCRIPTION
+ Returns a pointer to an allocated block of memory that is at least
+ SIZE bytes long. If SIZE is 0 then it will be treated as if it were
+ 1. If SIZE is too big then NULL will be returned.
+
+ Returns NULL upon error and sets bfd_error.
+*/
void *
bfd_malloc (bfd_size_type size)
{
if (size != sz
/* This is to pacify memory checkers like valgrind. */
- || ((signed long) sz) < 0)
+ || sz > SSIZE_MAX)
{
bfd_set_error (bfd_error_no_memory);
return NULL;
}
- ptr = malloc (sz);
- if (ptr == NULL && sz != 0)
+ ptr = malloc (sz ? sz : 1);
+ if (ptr == NULL)
bfd_set_error (bfd_error_no_memory);
return ptr;
}
-/* Allocate memory using malloc, nmemb * size with overflow checking. */
-
-void *
-bfd_malloc2 (bfd_size_type nmemb, bfd_size_type size)
-{
- if ((nmemb | size) >= HALF_BFD_SIZE_TYPE
- && size != 0
- && nmemb > ~(bfd_size_type) 0 / size)
- {
- bfd_set_error (bfd_error_no_memory);
- return NULL;
- }
-
- return bfd_malloc (size * nmemb);
-}
+/*
+INTERNAL_FUNCTION
+ bfd_realloc
-/* Reallocate memory using realloc. */
+SYNOPSIS
+ extern void * bfd_realloc (void * MEM, bfd_size_type SIZE) ATTRIBUTE_HIDDEN;
+DESCRIPTION
+ Returns a pointer to an allocated block of memory that is at least
+ SIZE bytes long. If SIZE is 0 then it will be treated as if it were
+ 1. If SIZE is too big then NULL will be returned.
+
+ If MEM is not NULL then it must point to an allocated block of memory.
+ If this block is large enough then MEM may be used as the return
+ value for this function, but this is not guaranteed.
+
+ If MEM is not returned then the first N bytes in the returned block
+ will be identical to the first N bytes in region pointed to by MEM,
+ where N is the lessor of SIZE and the length of the region of memory
+ currently addressed by MEM.
+
+ Returns NULL upon error and sets bfd_error.
+*/
void *
bfd_realloc (void *ptr, bfd_size_type size)
{
if (size != sz
/* This is to pacify memory checkers like valgrind. */
- || ((signed long) sz) < 0)
+ || sz > SSIZE_MAX)
{
bfd_set_error (bfd_error_no_memory);
return NULL;
}
- ret = realloc (ptr, sz);
+ /* The behaviour of realloc(0) is implementation defined,
+ but for this function we always allocate memory. */
+ ret = realloc (ptr, sz ? sz : 1);
- if (ret == NULL && sz != 0)
+ if (ret == NULL)
bfd_set_error (bfd_error_no_memory);
return ret;
}
-/* Reallocate memory using realloc, nmemb * size with overflow checking. */
-
-void *
-bfd_realloc2 (void *ptr, bfd_size_type nmemb, bfd_size_type size)
-{
- if ((nmemb | size) >= HALF_BFD_SIZE_TYPE
- && size != 0
- && nmemb > ~(bfd_size_type) 0 / size)
- {
- bfd_set_error (bfd_error_no_memory);
- return NULL;
- }
-
- return bfd_realloc (ptr, size * nmemb);
-}
+/*
+INTERNAL_FUNCTION
+ bfd_realloc_or_free
-/* Reallocate memory using realloc.
- If this fails the pointer is freed before returning. */
+SYNOPSIS
+ extern void * bfd_realloc_or_free (void * MEM, bfd_size_type SIZE) ATTRIBUTE_HIDDEN;
+DESCRIPTION
+ Returns a pointer to an allocated block of memory that is at least
+ SIZE bytes long. If SIZE is 0 then no memory will be allocated,
+ MEM will be freed, and NULL will be returned. This will not cause
+ bfd_error to be set.
+
+ If SIZE is too big then NULL will be returned and bfd_error will be
+ set.
+
+ If MEM is not NULL then it must point to an allocated block of memory.
+ If this block is large enough then MEM may be used as the return
+ value for this function, but this is not guaranteed.
+
+ If MEM is not returned then the first N bytes in the returned block
+ will be identical to the first N bytes in region pointed to by MEM,
+ where N is the lessor of SIZE and the length of the region of memory
+ currently addressed by MEM.
+*/
void *
bfd_realloc_or_free (void *ptr, bfd_size_type size)
{
- void *ret = bfd_realloc (ptr, size);
+ void *ret;
- if (ret == NULL && ptr != NULL)
+ /* The behaviour of realloc(0) is implementation defined, but
+ for this function we treat it is always freeing the memory. */
+ if (size == 0)
+ {
+ free (ptr);
+ return NULL;
+ }
+
+ ret = bfd_realloc (ptr, size);
+ if (ret == NULL)
free (ptr);
return ret;
}
-/* Allocate memory using malloc and clear it. */
+/*
+INTERNAL_FUNCTION
+ bfd_zmalloc
+
+SYNOPSIS
+ extern void * bfd_zmalloc (bfd_size_type SIZE) ATTRIBUTE_HIDDEN;
+DESCRIPTION
+ Returns a pointer to an allocated block of memory that is at least
+ SIZE bytes long. If SIZE is 0 then it will be treated as if it were
+ 1. If SIZE is too big then NULL will be returned.
+
+ Returns NULL upon error and sets bfd_error.
+
+ If NULL is not returned then the allocated block of memory will
+ have been cleared.
+*/
void *
bfd_zmalloc (bfd_size_type size)
{
void *ptr = bfd_malloc (size);
- if (ptr != NULL && size > 0)
- memset (ptr, 0, (size_t) size);
-
- return ptr;
-}
-
-/* Allocate memory using malloc (nmemb * size) with overflow checking
- and clear it. */
-
-void *
-bfd_zmalloc2 (bfd_size_type nmemb, bfd_size_type size)
-{
- void *ptr = bfd_malloc2 (nmemb, size);
-
if (ptr != NULL)
- {
- size_t sz = nmemb * size;
-
- if (sz > 0)
- memset (ptr, 0, sz);
- }
+ memset (ptr, 0, size ? (size_t) size : 1);
return ptr;
}
bfd_write_bigendian_4byte_int
SYNOPSIS
- bfd_boolean bfd_write_bigendian_4byte_int (bfd *, unsigned int);
+ bool 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.
*/
-bfd_boolean
+bool
bfd_write_bigendian_4byte_int (bfd *abfd, unsigned int i)
{
bfd_byte buffer[4];
/* 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
.#define bfd_put_signed_8 \
. bfd_put_8
.#define bfd_get_8(abfd, ptr) \
-. (*(const unsigned char *) (ptr) & 0xff)
+. ((bfd_vma) *(const unsigned char *) (ptr) & 0xff)
.#define bfd_get_signed_8(abfd, ptr) \
-. (((*(const 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)))
.#define bfd_get_signed_16(abfd, 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)))
.#define bfd_put_signed_32 \
. BFD_SEND (abfd, bfd_getx_signed_64, (ptr))
.
.#define bfd_get(bits, abfd, ptr) \
-. ((bits) == 8 ? (bfd_vma) bfd_get_8 (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) \
.
.#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) \
+. : (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))
.
*/
addr[1] = (data >> 8) & 0xff;
}
+void
+bfd_putb24 (bfd_vma data, void *p)
+{
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[0] = (data >> 16) & 0xff;
+ addr[1] = (data >> 8) & 0xff;
+ addr[2] = data & 0xff;
+}
+
+void
+bfd_putl24 (bfd_vma data, void *p)
+{
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[0] = data & 0xff;
+ addr[1] = (data >> 8) & 0xff;
+ addr[2] = (data >> 16) & 0xff;
+}
+
+bfd_vma
+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)
{
}
void
-bfd_put_bits (bfd_uint64_t data, void *p, int bits, bfd_boolean big_p)
+bfd_put_bits (bfd_uint64_t data, void *p, int bits, bool big_p)
{
bfd_byte *addr = (bfd_byte *) p;
int i;
}
bfd_uint64_t
-bfd_get_bits (const void *p, int bits, bfd_boolean big_p)
+bfd_get_bits (const void *p, int bits, bool big_p)
{
const bfd_byte *addr = (const bfd_byte *) p;
bfd_uint64_t data;
\f
/* Default implementation */
-bfd_boolean
+bool
_bfd_generic_get_section_contents (bfd *abfd,
sec_ptr section,
void *location,
bfd_size_type count)
{
bfd_size_type sz;
- file_ptr filesz;
if (count == 0)
- return TRUE;
+ return true;
if (section->compress_status != COMPRESS_SECTION_NONE)
{
_bfd_error_handler
/* xgettext:c-format */
- (_("%B: unable to get decompressed section %A"),
+ (_("%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
sz = section->rawsize;
else
sz = section->size;
- filesz = bfd_get_file_size (abfd);
- if (filesz < 0)
- {
- /* This should never happen. */
- abort ();
- }
if (offset + count < count
|| offset + count > sz
- || (section->filepos + offset + sz) > (bfd_size_type) filesz)
+ || (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;
+ 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;
}
-bfd_boolean
+bool
_bfd_generic_get_section_contents_in_window
(bfd *abfd ATTRIBUTE_UNUSED,
sec_ptr section ATTRIBUTE_UNUSED,
{
#ifdef USE_MMAP
bfd_size_type sz;
- file_ptr filesz;
if (count == 0)
- return TRUE;
+ return true;
if (abfd->xvec->_bfd_get_section_contents
!= _bfd_generic_get_section_contents)
{
bfd_free_window (w);
w->i = bfd_zmalloc (sizeof (bfd_window_internal));
if (w->i == NULL)
- return FALSE;
+ 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;
sz = section->rawsize;
else
sz = section->size;
- filesz = bfd_get_file_size (abfd);
- if (filesz < 0)
- {
- /* This should never happen. */
- abort ();
- }
- if (offset + count > sz
- || (section->filepos + offset + sz) > (bfd_size_type) filesz
+ 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. */
-bfd_boolean
+bool
_bfd_generic_set_section_contents (bfd *abfd,
sec_ptr section,
const void *location,
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;
}
-bfd_boolean
+bool
bfd_generic_is_local_label_name (bfd *abfd, const char *name)
{
char locals_prefix = (bfd_get_symbol_leading_char (abfd) == '_') ? 'L' : '.';
byte = bfd_get_8 (abfd, buf);
buf++;
num_read++;
- result |= (((bfd_vma) byte & 0x7f) << shift);
- shift += 7;
+ if (shift < 8 * sizeof (result))
+ {
+ result |= (((bfd_vma) byte & 0x7f) << shift);
+ shift += 7;
+ }
}
while (byte & 0x80);
*bytes_read_ptr = num_read;
_bfd_safe_read_leb128 (bfd *abfd ATTRIBUTE_UNUSED,
bfd_byte *data,
unsigned int *length_return,
- bfd_boolean sign,
+ bool sign,
const bfd_byte * const end)
{
bfd_vma result = 0;
byte = bfd_get_8 (abfd, data);
data++;
num_read++;
-
- result |= ((bfd_vma) (byte & 0x7f)) << shift;
-
- shift += 7;
+ if (shift < 8 * sizeof (result))
+ {
+ result |= ((bfd_vma) (byte & 0x7f)) << shift;
+ shift += 7;
+ }
if ((byte & 0x80) == 0)
break;
}
byte = bfd_get_8 (abfd, buf);
buf ++;
num_read ++;
- result |= (((bfd_vma) byte & 0x7f) << shift);
- shift += 7;
+ if (shift < 8 * sizeof (result))
+ {
+ result |= (((bfd_vma) byte & 0x7f) << shift);
+ shift += 7;
+ }
}
while (byte & 0x80);
if (shift < 8 * sizeof (result) && (byte & 0x40))
return result;
}
-bfd_boolean
+/* Write VAL in uleb128 format to P.
+ END indicates the last byte of allocated space for the uleb128 value to fit
+ in.
+ Return a pointer to the byte following the last byte that was written, or
+ NULL if the uleb128 value does not fit in the allocated space between P and
+ END. */
+bfd_byte *
+_bfd_write_unsigned_leb128 (bfd_byte *p, bfd_byte *end, bfd_vma val)
+{
+ bfd_byte c;
+ do
+ {
+ if (p > end)
+ return NULL;
+ c = val & 0x7f;
+ val >>= 7;
+ if (val)
+ c |= 0x80;
+ *(p++) = c;
+ }
+ while (val);
+ return p;
+}
+
+bool
_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;
+ return true;
}
projects / thirdparty / binutils-gdb.git / blobdiff