* gdbarch.c, gdbarch.h: Regenerate.
* findvar.c (default_value_from_register): New function.
(value_from_register): Use gdbarch_value_from_register.
* value.h (default_value_from_register): Declare.
* spu-tdep.c (spu_convert_register_p, spu_register_to_value,
spu_value_to_register): Remove.
(spu_value_from_register): New function.
(spu_gdbarch_init): Do not call set_gdbarch_convert_register_p,
set_gdbarch_register_to_value, set_gdbarch_value_to_register.
Call set_gdbarch_value_from_register.
* s390-tdep.c (s390_convert_register_p, s390_register_to_value,
s390_value_to_register): Remove.
(s390_value_from_register): New function.
(s390_gdbarch_init): Do not call set_gdbarch_convert_register_p,
set_gdbarch_register_to_value, set_gdbarch_value_to_register.
Call set_gdbarch_value_from_register.
+2007-01-08 Ulrich Weigand <uweigand@de.ibm.com>
+
+ * gdbarch.sh (value_from_register): New gdbarch function.
+ * gdbarch.c, gdbarch.h: Regenerate.
+ * findvar.c (default_value_from_register): New function.
+ (value_from_register): Use gdbarch_value_from_register.
+ * value.h (default_value_from_register): Declare.
+ * spu-tdep.c (spu_convert_register_p, spu_register_to_value,
+ spu_value_to_register): Remove.
+ (spu_value_from_register): New function.
+ (spu_gdbarch_init): Do not call set_gdbarch_convert_register_p,
+ set_gdbarch_register_to_value, set_gdbarch_value_to_register.
+ Call set_gdbarch_value_from_register.
+ * s390-tdep.c (s390_convert_register_p, s390_register_to_value,
+ s390_value_to_register): Remove.
+ (s390_value_from_register): New function.
+ (s390_gdbarch_init): Do not call set_gdbarch_convert_register_p,
+ set_gdbarch_register_to_value, set_gdbarch_value_to_register.
+ Call set_gdbarch_value_from_register.
+
2007-01-08 Daniel Jacobowitz <dan@codesourcery.com>
* NEWS: Add "set sysroot" and "show sysroot".
return v;
}
+/* Install default attributes for register values. */
+
+struct value *
+default_value_from_register (struct type *type, int regnum,
+ struct frame_info *frame)
+{
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+ int len = TYPE_LENGTH (type);
+ struct value *value = allocate_value (type);
+
+ VALUE_LVAL (value) = lval_register;
+ VALUE_FRAME_ID (value) = get_frame_id (frame);
+ VALUE_REGNUM (value) = regnum;
+
+ /* Any structure stored in more than one register will always be
+ an integral number of registers. Otherwise, you need to do
+ some fiddling with the last register copied here for little
+ endian machines. */
+ if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG
+ && len < register_size (gdbarch, regnum))
+ /* Big-endian, and we want less than full size. */
+ set_value_offset (value, register_size (gdbarch, regnum) - len);
+ else
+ set_value_offset (value, 0);
+
+ return value;
+}
+
/* Return a value of type TYPE, stored in register REGNUM, in frame FRAME. */
struct value *
value_from_register (struct type *type, int regnum, struct frame_info *frame)
{
struct gdbarch *gdbarch = get_frame_arch (frame);
- struct value *v = allocate_value (type);
- CHECK_TYPEDEF (type);
-
- VALUE_LVAL (v) = lval_register;
- VALUE_FRAME_ID (v) = get_frame_id (frame);
- VALUE_REGNUM (v) = regnum;
-
- if (CONVERT_REGISTER_P (regnum, type))
+ struct type *type1 = check_typedef (type);
+ struct value *v;
+
+ if (CONVERT_REGISTER_P (regnum, type1))
{
/* The ISA/ABI need to something weird when obtaining the
specified value from this register. It might need to
the corresponding [integer] type (see Alpha). The assumption
is that REGISTER_TO_VALUE populates the entire value
including the location. */
- REGISTER_TO_VALUE (frame, regnum, type, value_contents_raw (v));
+ v = allocate_value (type);
+ VALUE_LVAL (v) = lval_register;
+ VALUE_FRAME_ID (v) = get_frame_id (frame);
+ VALUE_REGNUM (v) = regnum;
+ REGISTER_TO_VALUE (frame, regnum, type1, value_contents_raw (v));
}
else
{
int len = TYPE_LENGTH (type);
- /* Any structure stored in more than one register will always be
- an integral number of registers. Otherwise, you need to do
- some fiddling with the last register copied here for little
- endian machines. */
- if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG
- && len < register_size (gdbarch, regnum))
- /* Big-endian, and we want less than full size. */
- set_value_offset (v, register_size (gdbarch, regnum) - len);
- else
- set_value_offset (v, 0);
+ /* Construct the value. */
+ v = gdbarch_value_from_register (gdbarch, type, regnum, frame);
/* Get the data. */
if (!get_frame_register_bytes (frame, regnum, value_offset (v), len,
gdbarch_convert_register_p_ftype *convert_register_p;
gdbarch_register_to_value_ftype *register_to_value;
gdbarch_value_to_register_ftype *value_to_register;
+ gdbarch_value_from_register_ftype *value_from_register;
gdbarch_pointer_to_address_ftype *pointer_to_address;
gdbarch_address_to_pointer_ftype *address_to_pointer;
gdbarch_integer_to_address_ftype *integer_to_address;
0, /* convert_register_p */
0, /* register_to_value */
0, /* value_to_register */
+ 0, /* value_from_register */
0, /* pointer_to_address */
0, /* address_to_pointer */
0, /* integer_to_address */
current_gdbarch->cannot_fetch_register = cannot_register_not;
current_gdbarch->cannot_store_register = cannot_register_not;
current_gdbarch->convert_register_p = generic_convert_register_p;
+ current_gdbarch->value_from_register = default_value_from_register;
current_gdbarch->pointer_to_address = unsigned_pointer_to_address;
current_gdbarch->address_to_pointer = unsigned_address_to_pointer;
current_gdbarch->return_value = legacy_return_value;
/* Skip verify of cannot_store_register, invalid_p == 0 */
/* Skip verify of get_longjmp_target, has predicate */
/* Skip verify of convert_register_p, invalid_p == 0 */
+ /* Skip verify of value_from_register, invalid_p == 0 */
/* Skip verify of pointer_to_address, invalid_p == 0 */
/* Skip verify of address_to_pointer, invalid_p == 0 */
/* Skip verify of integer_to_address, has predicate */
fprintf_unfiltered (file,
"gdbarch_dump: unwind_sp = <0x%lx>\n",
(long) current_gdbarch->unwind_sp);
+ fprintf_unfiltered (file,
+ "gdbarch_dump: value_from_register = <0x%lx>\n",
+ (long) current_gdbarch->value_from_register);
#ifdef VALUE_TO_REGISTER
fprintf_unfiltered (file,
"gdbarch_dump: %s # %s\n",
gdbarch->value_to_register = value_to_register;
}
+struct value *
+gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame)
+{
+ gdb_assert (gdbarch != NULL);
+ gdb_assert (gdbarch->value_from_register != NULL);
+ if (gdbarch_debug >= 2)
+ fprintf_unfiltered (gdb_stdlog, "gdbarch_value_from_register called\n");
+ return gdbarch->value_from_register (type, regnum, frame);
+}
+
+void
+set_gdbarch_value_from_register (struct gdbarch *gdbarch,
+ gdbarch_value_from_register_ftype value_from_register)
+{
+ gdbarch->value_from_register = value_from_register;
+}
+
CORE_ADDR
gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf)
{
#define VALUE_TO_REGISTER(frame, regnum, type, buf) (gdbarch_value_to_register (current_gdbarch, frame, regnum, type, buf))
#endif
+/* Construct a value representing the contents of register REGNUM in
+ frame FRAME, interpreted as type TYPE. The routine needs to
+ allocate and return a struct value with all value attributes
+ (but not the value contents) filled in. */
+
+typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame);
+extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame);
+extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
+
typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct type *type, const gdb_byte *buf);
extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
f:=:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
f:=:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0
f:=:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
+# Construct a value representing the contents of register REGNUM in
+# frame FRAME, interpreted as type TYPE. The routine needs to
+# allocate and return a struct value with all value attributes
+# (but not the value contents) filled in.
+f::struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
#
f:=:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
f:=:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
/* 'float' values are stored in the upper half of floating-point
registers, even though we are otherwise a big-endian platform. */
-static int
-s390_convert_register_p (int regno, struct type *type)
-{
- return (regno >= S390_F0_REGNUM && regno <= S390_F15_REGNUM)
- && TYPE_LENGTH (type) < 8;
-}
-
-static void
-s390_register_to_value (struct frame_info *frame, int regnum,
- struct type *valtype, gdb_byte *out)
+static struct value *
+s390_value_from_register (struct type *type, int regnum,
+ struct frame_info *frame)
{
- gdb_byte in[8];
- int len = TYPE_LENGTH (valtype);
- gdb_assert (len < 8);
+ struct value *value = default_value_from_register (type, regnum, frame);
+ int len = TYPE_LENGTH (type);
- get_frame_register (frame, regnum, in);
- memcpy (out, in, len);
-}
-
-static void
-s390_value_to_register (struct frame_info *frame, int regnum,
- struct type *valtype, const gdb_byte *in)
-{
- gdb_byte out[8];
- int len = TYPE_LENGTH (valtype);
- gdb_assert (len < 8);
+ if (regnum >= S390_F0_REGNUM && regnum <= S390_F15_REGNUM && len < 8)
+ set_value_offset (value, 0);
- memset (out, 0, 8);
- memcpy (out, in, len);
- put_frame_register (frame, regnum, out);
+ return value;
}
/* Register groups. */
set_gdbarch_stab_reg_to_regnum (gdbarch, s390_dwarf_reg_to_regnum);
set_gdbarch_dwarf_reg_to_regnum (gdbarch, s390_dwarf_reg_to_regnum);
set_gdbarch_dwarf2_reg_to_regnum (gdbarch, s390_dwarf_reg_to_regnum);
- set_gdbarch_convert_register_p (gdbarch, s390_convert_register_p);
- set_gdbarch_register_to_value (gdbarch, s390_register_to_value);
- set_gdbarch_value_to_register (gdbarch, s390_value_to_register);
+ set_gdbarch_value_from_register (gdbarch, s390_value_from_register);
set_gdbarch_register_reggroup_p (gdbarch, s390_register_reggroup_p);
set_gdbarch_regset_from_core_section (gdbarch,
s390_regset_from_core_section);
/* Value conversion -- access scalar values at the preferred slot. */
-static int
-spu_convert_register_p (int regno, struct type *type)
-{
- return regno < SPU_NUM_GPRS && TYPE_LENGTH (type) < 16;
-}
-
-static void
-spu_register_to_value (struct frame_info *frame, int regnum,
- struct type *valtype, gdb_byte *out)
+static struct value *
+spu_value_from_register (struct type *type, int regnum,
+ struct frame_info *frame)
{
- gdb_byte in[16];
- int len = TYPE_LENGTH (valtype);
- int preferred_slot = len < 4 ? 4 - len : 0;
- gdb_assert (len < 16);
+ struct value *value = default_value_from_register (type, regnum, frame);
+ int len = TYPE_LENGTH (type);
- get_frame_register (frame, regnum, in);
- memcpy (out, in + preferred_slot, len);
-}
+ if (regnum < SPU_NUM_GPRS && len < 16)
+ {
+ int preferred_slot = len < 4 ? 4 - len : 0;
+ set_value_offset (value, preferred_slot);
+ }
-static void
-spu_value_to_register (struct frame_info *frame, int regnum,
- struct type *valtype, const gdb_byte *in)
-{
- gdb_byte out[16];
- int len = TYPE_LENGTH (valtype);
- int preferred_slot = len < 4 ? 4 - len : 0;
- gdb_assert (len < 16);
-
- memset (out, 0, 16);
- memcpy (out + preferred_slot, in, len);
- put_frame_register (frame, regnum, out);
+ return value;
}
/* Register groups. */
set_gdbarch_register_type (gdbarch, spu_register_type);
set_gdbarch_pseudo_register_read (gdbarch, spu_pseudo_register_read);
set_gdbarch_pseudo_register_write (gdbarch, spu_pseudo_register_write);
- set_gdbarch_convert_register_p (gdbarch, spu_convert_register_p);
- set_gdbarch_register_to_value (gdbarch, spu_register_to_value);
- set_gdbarch_value_to_register (gdbarch, spu_value_to_register);
+ set_gdbarch_value_from_register (gdbarch, spu_value_from_register);
set_gdbarch_register_reggroup_p (gdbarch, spu_register_reggroup_p);
/* Data types. */
extern struct value *value_at (struct type *type, CORE_ADDR addr);
extern struct value *value_at_lazy (struct type *type, CORE_ADDR addr);
+extern struct value *default_value_from_register (struct type *type,
+ int regnum,
+ struct frame_info *frame);
+
extern struct value *value_from_register (struct type *type, int regnum,
struct frame_info *frame);
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