gdbarch structure.
* gdbarch.{c,h}: Regenerate.
* value.c (struct value): Replace BITS_BIG_ENDIAN by
gdbarch_bits_big_endian (comment).
(unpack_field_as_long, modify_field): Likewise.
* value.h: Likewise (comment).
* valops.c (value_slice): Likewise.
* valarith.c (value_subscript, value_bit_index): Likewise.
* gdbtypes.h (field): Likewise (comment).
* eval.c (evaluate_subexp_standard): Likewise.
* dwarf2read.c (dwarf2_add_field): Likewise.
* ada-lang.c (decode_packed_array, ada_value_primitive_packed_val)
(move_bits, ada_value_assign, value_assign_to_component): Likewise.
* defs.h (BITS_BIG_ENDIAN): Remove.
* gdbint.texinfo (Target Conditionals): Replace the description of
BITS_BIG_ENDIAN with a description of gdbarch_bits_big_endian.
+2008-01-18 Markus Deuling <deuling@de.ibm.com>
+
+ * gdbarch.sh (function_list): Add new property bits_big_endian to
+ gdbarch structure.
+ * gdbarch.{c,h}: Regenerate.
+
+ * value.c (struct value): Replace BITS_BIG_ENDIAN by
+ gdbarch_bits_big_endian (comment).
+ (unpack_field_as_long, modify_field): Likewise.
+ * value.h: Likewise (comment).
+ * valops.c (value_slice): Likewise.
+ * valarith.c (value_subscript, value_bit_index): Likewise.
+ * gdbtypes.h (field): Likewise (comment).
+ * eval.c (evaluate_subexp_standard): Likewise.
+ * dwarf2read.c (dwarf2_add_field): Likewise.
+ * ada-lang.c (decode_packed_array, ada_value_primitive_packed_val)
+ (move_bits, ada_value_assign, value_assign_to_component): Likewise.
+
+ * defs.h (BITS_BIG_ENDIAN): Remove.
+
2008-01-18 Markus Deuling <deuling@de.ibm.com>
* jv-exp.y (yylex): Replace DEPRECATED_STREQN with the appropriate
return NULL;
}
- if (BITS_BIG_ENDIAN && ada_is_modular_type (value_type (arr)))
+ if (gdbarch_bits_big_endian (current_gdbarch)
+ && ada_is_modular_type (value_type (arr)))
{
/* This is a (right-justified) modular type representing a packed
array with no wrapper. In order to interpret the value through
int len = (bit_size + bit_offset + HOST_CHAR_BIT - 1) / 8;
/* Transmit bytes from least to most significant; delta is the direction
the indices move. */
- int delta = BITS_BIG_ENDIAN ? -1 : 1;
+ int delta = gdbarch_bits_big_endian (current_gdbarch) ? -1 : 1;
type = ada_check_typedef (type);
memset (unpacked, 0, TYPE_LENGTH (type));
return v;
}
- else if (BITS_BIG_ENDIAN)
+ else if (gdbarch_bits_big_endian (current_gdbarch))
{
src = len - 1;
if (has_negatives (type)
targ_offset %= HOST_CHAR_BIT;
source += src_offset / HOST_CHAR_BIT;
src_offset %= HOST_CHAR_BIT;
- if (BITS_BIG_ENDIAN)
+ if (gdbarch_bits_big_endian (current_gdbarch))
{
accum = (unsigned char) *source;
source += 1;
fromval = value_cast (type, fromval);
read_memory (to_addr, buffer, len);
- if (BITS_BIG_ENDIAN)
+ if (gdbarch_bits_big_endian (current_gdbarch))
move_bits (buffer, value_bitpos (toval),
value_contents (fromval),
TYPE_LENGTH (value_type (fromval)) * TARGET_CHAR_BIT -
else
bits = value_bitsize (component);
- if (BITS_BIG_ENDIAN)
+ if (gdbarch_bits_big_endian (current_gdbarch))
move_bits (value_contents_writeable (container) + offset_in_container,
value_bitpos (container) + bit_offset_in_container,
value_contents (val),
#define HOST_CHAR_BIT TARGET_CHAR_BIT
#endif
-/* The bit byte-order has to do just with numbering of bits in
- debugging symbols and such. Conceptually, it's quite separate
- from byte/word byte order. */
-
-#if !defined (BITS_BIG_ENDIAN)
-#define BITS_BIG_ENDIAN (gdbarch_byte_order (current_gdbarch) == BFD_ENDIAN_BIG)
-#endif
-
/* In findvar.c. */
extern LONGEST extract_signed_integer (const gdb_byte *, int);
+2008-01-18 Markus Deuling <deuling@de.ibm.com>
+
+ * gdbint.texinfo (Target Conditionals): Replace the description of
+ BITS_BIG_ENDIAN with a description of gdbarch_bits_big_endian.
+
2008-01-12 Paul Hilfinger <hilfinger@adacore.com>
* gdb.texinfo (C Operators): Remove incorrect parenthetical comment
parameter to an @code{int}, but still reports the parameter as its
original type, rather than the promoted type.
-@item BITS_BIG_ENDIAN
-@findex BITS_BIG_ENDIAN
-Define this if the numbering of bits in the targets does @strong{not} match the
-endianness of the target byte order. A value of 1 means that the bits
+@item gdbarch_bits_big_endian (@var{gdbarch})
+@findex gdbarch_bits_big_endian
+This is used if the numbering of bits in the targets does @strong{not} match
+the endianness of the target byte order. A value of 1 means that the bits
are numbered in a big-endian bit order, 0 means little-endian.
+@item set_gdbarch_bits_big_endian (@var{gdbarch}, @var{bits_big_endian})
+@findex set_gdbarch_bits_big_endian
+Calling set_gdbarch_bits_big_endian with a value of 1 indicates that the
+bits in the target are numbered in a big-endian bit order, 0 indicates
+little-endian.
+
@item BREAKPOINT
@findex BREAKPOINT
This is the character array initializer for the bit pattern to put into
attr = dwarf2_attr (die, DW_AT_bit_offset, cu);
if (attr)
{
- if (BITS_BIG_ENDIAN)
+ if (gdbarch_bits_big_endian (current_gdbarch))
{
/* For big endian bits, the DW_AT_bit_offset gives the
additional bit offset from the MSB of the containing
for (; range_low <= range_high; range_low++)
{
int bit_index = (unsigned) range_low % TARGET_CHAR_BIT;
- if (BITS_BIG_ENDIAN)
+ if (gdbarch_bits_big_endian (current_gdbarch))
bit_index = TARGET_CHAR_BIT - 1 - bit_index;
valaddr[(unsigned) range_low / TARGET_CHAR_BIT]
|= 1 << bit_index;
*/
+ int bits_big_endian;
int short_bit;
int int_bit;
int long_bit;
/*per-architecture data-pointers and swap regions */
0, NULL, NULL,
/* Multi-arch values */
+ 1, /* bits_big_endian */
8 * sizeof (short), /* short_bit */
8 * sizeof (int), /* int_bit */
8 * sizeof (long), /* long_bit */
gdbarch->target_desc = info->target_desc;
/* Force the explicit initialization of these. */
+ gdbarch->bits_big_endian = (gdbarch->byte_order == BFD_ENDIAN_BIG);
gdbarch->short_bit = 2*TARGET_CHAR_BIT;
gdbarch->int_bit = 4*TARGET_CHAR_BIT;
gdbarch->long_bit = 4*TARGET_CHAR_BIT;
if (gdbarch->bfd_arch_info == NULL)
fprintf_unfiltered (log, "\n\tbfd_arch_info");
/* Check those that need to be defined for the given multi-arch level. */
+ /* Skip verify of bits_big_endian, invalid_p == 0 */
/* Skip verify of short_bit, invalid_p == 0 */
/* Skip verify of int_bit, invalid_p == 0 */
/* Skip verify of long_bit, invalid_p == 0 */
fprintf_unfiltered (file,
"gdbarch_dump: bfd_arch_info = %s\n",
gdbarch_bfd_arch_info (gdbarch)->printable_name);
+ fprintf_unfiltered (file,
+ "gdbarch_dump: bits_big_endian = %s\n",
+ paddr_d (gdbarch->bits_big_endian));
fprintf_unfiltered (file,
"gdbarch_dump: breakpoint_from_pc = <0x%lx>\n",
(long) gdbarch->breakpoint_from_pc);
return gdbarch->target_desc;
}
+int
+gdbarch_bits_big_endian (struct gdbarch *gdbarch)
+{
+ gdb_assert (gdbarch != NULL);
+ /* Skip verify of bits_big_endian, invalid_p == 0 */
+ if (gdbarch_debug >= 2)
+ fprintf_unfiltered (gdb_stdlog, "gdbarch_bits_big_endian called\n");
+ return gdbarch->bits_big_endian;
+}
+
+void
+set_gdbarch_bits_big_endian (struct gdbarch *gdbarch,
+ int bits_big_endian)
+{
+ gdbarch->bits_big_endian = bits_big_endian;
+}
+
int
gdbarch_short_bit (struct gdbarch *gdbarch)
{
/* The following are initialized by the target dependent code. */
+/* The bit byte-order has to do just with numbering of bits in debugging symbols
+ and such. Conceptually, it's quite separate from byte/word byte order. */
+
+extern int gdbarch_bits_big_endian (struct gdbarch *gdbarch);
+extern void set_gdbarch_bits_big_endian (struct gdbarch *gdbarch, int bits_big_endian);
+
/* Number of bits in a char or unsigned char for the target machine.
Just like CHAR_BIT in <limits.h> but describes the target machine.
v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
i:enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN
#
i:const struct target_desc *:target_desc:::::::paddr_d ((long) gdbarch->target_desc)
+
+# The bit byte-order has to do just with numbering of bits in debugging symbols
+# and such. Conceptually, it's quite separate from byte/word byte order.
+v:int:bits_big_endian:::1:(gdbarch->byte_order == BFD_ENDIAN_BIG)::0
+
# Number of bits in a char or unsigned char for the target machine.
# Just like CHAR_BIT in <limits.h> but describes the target machine.
# v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
{
/* Position of this field, counting in bits from start of
containing structure.
- For BITS_BIG_ENDIAN=1 targets, it is the bit offset to the MSB.
- For BITS_BIG_ENDIAN=0 targets, it is the bit offset to the LSB.
+ For gdbarch_bits_big_endian=1 targets, it is the bit offset to the MSB.
+ For gdbarch_bits_big_endian=0 targets, it is the bit offset to the LSB.
For a range bound or enum value, this is the value itself. */
int bitpos;
offset = index / TARGET_CHAR_BIT;
byte = *((char *) value_contents (array) + offset);
bit_index = index % TARGET_CHAR_BIT;
- byte >>= (BITS_BIG_ENDIAN ? TARGET_CHAR_BIT - 1 - bit_index : bit_index);
+ byte >>= (gdbarch_bits_big_endian (current_gdbarch) ?
+ TARGET_CHAR_BIT - 1 - bit_index : bit_index);
v = value_from_longest (LA_BOOL_TYPE, byte & 1);
set_value_bitpos (v, bit_index);
set_value_bitsize (v, 1);
word = unpack_long (builtin_type_unsigned_char,
valaddr + (rel_index / TARGET_CHAR_BIT));
rel_index %= TARGET_CHAR_BIT;
- if (BITS_BIG_ENDIAN)
+ if (gdbarch_bits_big_endian (current_gdbarch))
rel_index = TARGET_CHAR_BIT - 1 - rel_index;
return (word >> rel_index) & 1;
}
else if (element > 0)
{
int j = i % TARGET_CHAR_BIT;
- if (BITS_BIG_ENDIAN)
+ if (gdbarch_bits_big_endian (current_gdbarch))
j = TARGET_CHAR_BIT - 1 - j;
value_contents_raw (slice)[i / TARGET_CHAR_BIT] |= (1 << j);
}
int bitsize;
/* Only used for bitfields; position of start of field. For
- BITS_BIG_ENDIAN=0 targets, it is the position of the LSB. For
- BITS_BIG_ENDIAN=1 targets, it is the position of the MSB. */
+ gdbarch_bits_big_endian=0 targets, it is the position of the LSB. For
+ gdbarch_bits_big_endian=1 targets, it is the position of the MSB. */
int bitpos;
/* Frame register value is relative to. This will be described in
/* Extract bits. See comment above. */
- if (BITS_BIG_ENDIAN)
+ if (gdbarch_bits_big_endian (current_gdbarch))
lsbcount = (sizeof val * 8 - bitpos % 8 - bitsize);
else
lsbcount = (bitpos % 8);
oword = extract_unsigned_integer (addr, sizeof oword);
/* Shifting for bit field depends on endianness of the target machine. */
- if (BITS_BIG_ENDIAN)
+ if (gdbarch_bits_big_endian (current_gdbarch))
bitpos = sizeof (oword) * 8 - bitpos - bitsize;
oword &= ~(mask << bitpos);
extern void set_value_bitsize (struct value *, int bit);
/* Only used for bitfields; position of start of field. For
- BITS_BIG_ENDIAN=0 targets, it is the position of the LSB. For
- BITS_BIG_ENDIAN=1 targets, it is the position of the MSB. */
+ gdbarch_bits_big_endian=0 targets, it is the position of the LSB. For
+ gdbarch_bits_big_endian=1 targets, it is the position of the MSB. */
extern int value_bitpos (struct value *);
extern void set_value_bitpos (struct value *, int bit);
projects / thirdparty / binutils-gdb.git / commitdiff
