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* valops.c (value_ind): No longer allow dereferencing an 

integer type.
	* eval.c (evaluate_subexp_standard): Handle deferencing an
	integer type here.
	* ada-lang.c (ada_evaluate_subexp): Likewise.
This commit is contained in:
Ulrich Weigand 2008-09-11 14:17:58 +00:00
parent d8631d213f
commit 22fe0fbb30
4 changed files with 25 additions and 10 deletions
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8
gdb/ChangeLog
View File

@ -1,3 +1,11 @@
2008-09-11 Ulrich Weigand <uweigand@de.ibm.com>
* valops.c (value_ind): No longer allow dereferencing an
integer type.
* eval.c (evaluate_subexp_standard): Handle deferencing an
integer type here.
* ada-lang.c (ada_evaluate_subexp): Likewise.
2008-09-11 Ulrich Weigand <uweigand@de.ibm.com>
* ada-valprint.c (ada_val_print_1): When implicitly dereferencing

7
gdb/ada-lang.c
View File

@ -9155,7 +9155,8 @@ ada_evaluate_subexp (struct type *expect_type, struct expression *exp,
}
else if (TYPE_CODE (type) == TYPE_CODE_INT)
/* GDB allows dereferencing an int. */
return value_zero (builtin_type_int, lval_memory);
return value_zero (builtin_type (exp->gdbarch)->builtin_int,
lval_memory);
else
error (_("Attempt to take contents of a non-pointer value."));
}
@ -9165,6 +9166,10 @@ ada_evaluate_subexp (struct type *expect_type, struct expression *exp,
if (ada_is_array_descriptor_type (type))
/* GDB allows dereferencing GNAT array descriptors. */
return ada_coerce_to_simple_array (arg1);
else if (TYPE_CODE (type) == TYPE_CODE_INT)
/* GDB allows dereferencing an int. */
return value_at_lazy (builtin_type (exp->gdbarch)->builtin_int,
(CORE_ADDR) value_as_address (arg1));
else
return ada_value_ind (arg1);

11
gdb/eval.c
View File

@ -2288,10 +2288,19 @@ evaluate_subexp_standard (struct type *expect_type,
lval_memory);
else if (TYPE_CODE (type) == TYPE_CODE_INT)
/* GDB allows dereferencing an int. */
return value_zero (builtin_type_int, lval_memory);
return value_zero (builtin_type (exp->gdbarch)->builtin_int,
lval_memory);
else
error (_("Attempt to take contents of a non-pointer value."));
}
/* Allow * on an integer so we can cast it to whatever we want.
This returns an int, which seems like the most C-like thing to
do. "long long" variables are rare enough that
BUILTIN_TYPE_LONGEST would seem to be a mistake. */
if (TYPE_CODE (type) == TYPE_CODE_INT)
return value_at_lazy (builtin_type (exp->gdbarch)->builtin_int,
(CORE_ADDR) value_as_address (arg1));
return value_ind (arg1);
case UNOP_ADDR:

9
gdb/valops.c
View File

@ -1172,14 +1172,7 @@ value_ind (struct value *arg1)
base_type = check_typedef (value_type (arg1));
/* Allow * on an integer so we can cast it to whatever we want.
This returns an int, which seems like the most C-like thing to
do. "long long" variables are rare enough that
BUILTIN_TYPE_LONGEST would seem to be a mistake. */
if (TYPE_CODE (base_type) == TYPE_CODE_INT)
return value_at_lazy (builtin_type_int,
(CORE_ADDR) value_as_address (arg1));
else if (TYPE_CODE (base_type) == TYPE_CODE_PTR)
if (TYPE_CODE (base_type) == TYPE_CODE_PTR)
{
struct type *enc_type;
/* We may be pointing to something embedded in a larger object.