/* Low level packing and unpacking of values for GDB, the GNU Debugger.
Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
- 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2003 Free Software
- Foundation, Inc.
+ 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005 Free
+ Software Foundation, Inc.
This file is part of GDB.
struct value *val;
struct type *atype = check_typedef (type);
- val = (struct value *) xmalloc (sizeof (struct value) + TYPE_LENGTH (atype));
+ val = (struct value *) xzalloc (sizeof (struct value) + TYPE_LENGTH (atype));
val->next = all_values;
all_values = val;
val->type = type;
- VALUE_ENCLOSING_TYPE (val) = type;
+ val->enclosing_type = type;
VALUE_LVAL (val) = not_lval;
VALUE_ADDRESS (val) = 0;
VALUE_FRAME_ID (val) = null_frame_id;
val->bitpos = 0;
val->bitsize = 0;
VALUE_REGNUM (val) = -1;
- VALUE_LAZY (val) = 0;
- VALUE_OPTIMIZED_OUT (val) = 0;
- VALUE_EMBEDDED_OFFSET (val) = 0;
- VALUE_POINTED_TO_OFFSET (val) = 0;
+ val->lazy = 0;
+ val->optimized_out = 0;
+ val->embedded_offset = 0;
+ val->pointed_to_offset = 0;
val->modifiable = 1;
return val;
}
return value->bitsize;
}
+bfd_byte *
+value_contents_raw (struct value *value)
+{
+ return value->aligner.contents + value->embedded_offset;
+}
+
+bfd_byte *
+value_contents_all_raw (struct value *value)
+{
+ return value->aligner.contents;
+}
+
+struct type *
+value_enclosing_type (struct value *value)
+{
+ return value->enclosing_type;
+}
+
+const bfd_byte *
+value_contents_all (struct value *value)
+{
+ if (value->lazy)
+ value_fetch_lazy (value);
+ return value->aligner.contents;
+}
+
+int
+value_lazy (struct value *value)
+{
+ return value->lazy;
+}
+
+void
+set_value_lazy (struct value *value, int val)
+{
+ value->lazy = val;
+}
+
+const bfd_byte *
+value_contents (struct value *value)
+{
+ return value_contents_writeable (value);
+}
+
+bfd_byte *
+value_contents_writeable (struct value *value)
+{
+ if (value->lazy)
+ value_fetch_lazy (value);
+ return value->aligner.contents;
+}
+
+int
+value_optimized_out (struct value *value)
+{
+ return value->optimized_out;
+}
+
+void
+set_value_optimized_out (struct value *value, int val)
+{
+ value->optimized_out = val;
+}
+
+int
+value_embedded_offset (struct value *value)
+{
+ return value->embedded_offset;
+}
+
+void
+set_value_embedded_offset (struct value *value, int val)
+{
+ value->embedded_offset = val;
+}
+
+int
+value_pointed_to_offset (struct value *value)
+{
+ return value->pointed_to_offset;
+}
+
+void
+set_value_pointed_to_offset (struct value *value, int val)
+{
+ value->pointed_to_offset = val;
+}
+
+enum lval_type *
+deprecated_value_lval_hack (struct value *value)
+{
+ return &value->lval;
+}
+
+CORE_ADDR *
+deprecated_value_address_hack (struct value *value)
+{
+ return &value->location.address;
+}
+
+struct internalvar **
+deprecated_value_internalvar_hack (struct value *value)
+{
+ return &value->location.internalvar;
+}
+
+struct frame_id *
+deprecated_value_frame_id_hack (struct value *value)
+{
+ return &value->frame_id;
+}
+
+short *
+deprecated_value_regnum_hack (struct value *value)
+{
+ return &value->regnum;
+}
+\f
/* Return a mark in the value chain. All values allocated after the
mark is obtained (except for those released) are subject to being freed
if a subsequent value_free_to_mark is passed the mark. */
struct value *
value_copy (struct value *arg)
{
- struct type *encl_type = VALUE_ENCLOSING_TYPE (arg);
+ struct type *encl_type = value_enclosing_type (arg);
struct value *val = allocate_value (encl_type);
val->type = arg->type;
VALUE_LVAL (val) = VALUE_LVAL (arg);
val->bitsize = arg->bitsize;
VALUE_FRAME_ID (val) = VALUE_FRAME_ID (arg);
VALUE_REGNUM (val) = VALUE_REGNUM (arg);
- VALUE_LAZY (val) = VALUE_LAZY (arg);
- VALUE_OPTIMIZED_OUT (val) = VALUE_OPTIMIZED_OUT (arg);
- VALUE_EMBEDDED_OFFSET (val) = VALUE_EMBEDDED_OFFSET (arg);
- VALUE_POINTED_TO_OFFSET (val) = VALUE_POINTED_TO_OFFSET (arg);
+ val->lazy = arg->lazy;
+ val->optimized_out = arg->optimized_out;
+ val->embedded_offset = value_embedded_offset (arg);
+ val->pointed_to_offset = arg->pointed_to_offset;
val->modifiable = arg->modifiable;
- if (!VALUE_LAZY (val))
+ if (!value_lazy (val))
{
- memcpy (VALUE_CONTENTS_ALL_RAW (val), VALUE_CONTENTS_ALL_RAW (arg),
- TYPE_LENGTH (VALUE_ENCLOSING_TYPE (arg)));
+ memcpy (value_contents_all_raw (val), value_contents_all_raw (arg),
+ TYPE_LENGTH (value_enclosing_type (arg)));
}
return val;
In particular, "set $1 = 50" should not affect the variable from which
the value was taken, and fast watchpoints should be able to assume that
a value on the value history never changes. */
- if (VALUE_LAZY (val))
+ if (value_lazy (val))
value_fetch_lazy (val);
/* We preserve VALUE_LVAL so that the user can find out where it was fetched
from. This is a bit dubious, because then *&$1 does not just return $1
struct value *val;
val = value_copy (var->value);
- if (VALUE_LAZY (val))
+ if (value_lazy (val))
value_fetch_lazy (val);
VALUE_LVAL (val) = lval_internalvar;
VALUE_INTERNALVAR (val) = var;
set_internalvar_component (struct internalvar *var, int offset, int bitpos,
int bitsize, struct value *newval)
{
- char *addr = VALUE_CONTENTS (var->value) + offset;
+ bfd_byte *addr = value_contents_writeable (var->value) + offset;
if (bitsize)
modify_field (addr, value_as_long (newval),
bitpos, bitsize);
else
- memcpy (addr, VALUE_CONTENTS (newval), TYPE_LENGTH (value_type (newval)));
+ memcpy (addr, value_contents (newval), TYPE_LENGTH (value_type (newval)));
}
void
/* Force the value to be fetched from the target now, to avoid problems
later when this internalvar is referenced and the target is gone or
has changed. */
- if (VALUE_LAZY (newval))
+ if (value_lazy (newval))
value_fetch_lazy (newval);
/* Begin code which must not call error(). If var->value points to
in disassemble_command). It also dereferences references, which
I suspect is the most logical thing to do. */
val = coerce_array (val);
- return unpack_long (value_type (val), VALUE_CONTENTS (val));
+ return unpack_long (value_type (val), value_contents (val));
}
DOUBLEST
DOUBLEST foo;
int inv;
- foo = unpack_double (value_type (val), VALUE_CONTENTS (val), &inv);
+ foo = unpack_double (value_type (val), value_contents (val), &inv);
if (inv)
error ("Invalid floating value found in program.");
return foo;
&& TYPE_CODE (value_type (val)) != TYPE_CODE_REF
&& gdbarch_integer_to_address_p (current_gdbarch))
return gdbarch_integer_to_address (current_gdbarch, value_type (val),
- VALUE_CONTENTS (val));
+ value_contents (val));
- return unpack_long (value_type (val), VALUE_CONTENTS (val));
+ return unpack_long (value_type (val), value_contents (val));
#endif
}
\f
struct value *
value_change_enclosing_type (struct value *val, struct type *new_encl_type)
{
- if (TYPE_LENGTH (new_encl_type) <= TYPE_LENGTH (VALUE_ENCLOSING_TYPE (val)))
+ if (TYPE_LENGTH (new_encl_type) <= TYPE_LENGTH (value_enclosing_type (val)))
{
- VALUE_ENCLOSING_TYPE (val) = new_encl_type;
+ val->enclosing_type = new_encl_type;
return val;
}
else
new_val = (struct value *) xrealloc (val, sizeof (struct value) + TYPE_LENGTH (new_encl_type));
- VALUE_ENCLOSING_TYPE (new_val) = new_encl_type;
+ new_val->enclosing_type = new_encl_type;
/* We have to make sure this ends up in the same place in the value
chain as the original copy, so it's clean-up behavior is the same.
{
v = value_from_longest (type,
unpack_field_as_long (arg_type,
- VALUE_CONTENTS (arg1)
+ value_contents (arg1)
+ offset,
fieldno));
v->bitpos = TYPE_FIELD_BITPOS (arg_type, fieldno) % 8;
/* This field is actually a base subobject, so preserve the
entire object's contents for later references to virtual
bases, etc. */
- v = allocate_value (VALUE_ENCLOSING_TYPE (arg1));
+ v = allocate_value (value_enclosing_type (arg1));
v->type = type;
- if (VALUE_LAZY (arg1))
- VALUE_LAZY (v) = 1;
+ if (value_lazy (arg1))
+ set_value_lazy (v, 1);
else
- memcpy (VALUE_CONTENTS_ALL_RAW (v), VALUE_CONTENTS_ALL_RAW (arg1),
- TYPE_LENGTH (VALUE_ENCLOSING_TYPE (arg1)));
+ memcpy (value_contents_all_raw (v), value_contents_all_raw (arg1),
+ TYPE_LENGTH (value_enclosing_type (arg1)));
v->offset = value_offset (arg1);
- VALUE_EMBEDDED_OFFSET (v)
- = offset +
- VALUE_EMBEDDED_OFFSET (arg1) +
- TYPE_FIELD_BITPOS (arg_type, fieldno) / 8;
+ v->embedded_offset = (offset + value_embedded_offset (arg1)
+ + TYPE_FIELD_BITPOS (arg_type, fieldno) / 8);
}
else
{
/* Plain old data member */
offset += TYPE_FIELD_BITPOS (arg_type, fieldno) / 8;
v = allocate_value (type);
- if (VALUE_LAZY (arg1))
- VALUE_LAZY (v) = 1;
+ if (value_lazy (arg1))
+ set_value_lazy (v, 1);
else
- memcpy (VALUE_CONTENTS_RAW (v),
- VALUE_CONTENTS_RAW (arg1) + offset,
+ memcpy (value_contents_raw (v),
+ value_contents_raw (arg1) + offset,
TYPE_LENGTH (type));
v->offset = (value_offset (arg1) + offset
- + VALUE_EMBEDDED_OFFSET (arg1));
+ + value_embedded_offset (arg1));
}
VALUE_LVAL (v) = VALUE_LVAL (arg1);
if (VALUE_LVAL (arg1) == lval_internalvar)
case TYPE_CODE_ENUM:
case TYPE_CODE_BOOL:
case TYPE_CODE_RANGE:
- store_signed_integer (VALUE_CONTENTS_RAW (val), len, num);
+ store_signed_integer (value_contents_raw (val), len, num);
break;
case TYPE_CODE_REF:
case TYPE_CODE_PTR:
- store_typed_address (VALUE_CONTENTS_RAW (val), type, (CORE_ADDR) num);
+ store_typed_address (value_contents_raw (val), type, (CORE_ADDR) num);
break;
default:
value_from_pointer (struct type *type, CORE_ADDR addr)
{
struct value *val = allocate_value (type);
- store_typed_address (VALUE_CONTENTS_RAW (val), type, addr);
+ store_typed_address (value_contents_raw (val), type, addr);
return val;
}
string_char_type,
rangetype);
val = allocate_value (stringtype);
- memcpy (VALUE_CONTENTS_RAW (val), ptr, len);
+ memcpy (value_contents_raw (val), ptr, len);
return val;
}
if (code == TYPE_CODE_FLT)
{
- store_typed_floating (VALUE_CONTENTS_RAW (val), base_type, num);
+ store_typed_floating (value_contents_raw (val), base_type, num);
}
else
error ("Unexpected type encountered for floating constant.");
if (TYPE_CODE (value_type_arg_tmp) == TYPE_CODE_REF)
arg = value_at_lazy (TYPE_TARGET_TYPE (value_type_arg_tmp),
unpack_pointer (value_type (arg),
- VALUE_CONTENTS (arg)));
+ value_contents (arg)));
return arg;
}
projects / deliverable / binutils-gdb.git / blobdiff