Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
- 2008, 2009 Free Software Foundation, Inc.
+ 2008, 2009, 2010 Free Software Foundation, Inc.
This file is part of GDB.
#include "observer.h"
#include "objfiles.h"
#include "symtab.h"
+#include "exceptions.h"
extern int overload_debug;
/* Local functions. */
static int typecmp (int staticp, int varargs, int nargs,
struct field t1[], struct value *t2[]);
-static struct value *search_struct_field (char *, struct value *,
+static struct value *search_struct_field (const char *, struct value *,
int, struct type *, int);
-static struct value *search_struct_method (char *, struct value **,
- struct value **,
- int, int *, struct type *);
+static struct value *search_struct_method (const char *, struct value **,
+ struct value **,
+ int, int *, struct type *);
static int find_oload_champ_namespace (struct type **, int,
const char *, const char *,
struct symbol ***,
- struct badness_vector **);
+ struct badness_vector **,
+ const int no_adl);
static
int find_oload_champ_namespace_loop (struct type **, int,
const char *, const char *,
int, struct symbol ***,
- struct badness_vector **, int *);
+ struct badness_vector **, int *,
+ const int no_adl);
static int find_oload_champ (struct type **, int, int, int,
struct fn_field *, struct symbol **,
static struct value *cast_into_complex (struct type *, struct value *);
-static struct fn_field *find_method_list (struct value **, char *,
+static struct fn_field *find_method_list (struct value **, const char *,
int, struct type *, int *,
struct type **, int *);
find_function_in_inferior (const char *name, struct objfile **objf_p)
{
struct symbol *sym;
+
sym = lookup_symbol (name, 0, VAR_DOMAIN, 0);
if (sym != NULL)
{
{
struct minimal_symbol *msymbol =
lookup_minimal_symbol (name, NULL, NULL);
+
if (msymbol != NULL)
{
struct objfile *objfile = msymbol_objfile (msymbol);
|| TYPE_CODE (t2) == TYPE_CODE_UNION)
&& !!"Precondition is that value is of STRUCT or UNION kind");
+ if (TYPE_NAME (t1) != NULL
+ && TYPE_NAME (t2) != NULL
+ && !strcmp (TYPE_NAME (t1), TYPE_NAME (t2)))
+ return NULL;
+
/* Upcasting: look in the type of the source to see if it contains the
type of the target as a superclass. If so, we'll need to
offset the pointer rather than just change its type. */
/* Downcasting: look in the type of the target to see if it contains the
type of the source as a superclass. If so, we'll need to
- offset the pointer rather than just change its type.
- FIXME: This fails silently with virtual inheritance. */
+ offset the pointer rather than just change its type. */
if (TYPE_NAME (t2) != NULL)
{
+ /* Try downcasting using the run-time type of the value. */
+ int full, top, using_enc;
+ struct type *real_type;
+
+ real_type = value_rtti_type (v2, &full, &top, &using_enc);
+ if (real_type)
+ {
+ v = value_full_object (v2, real_type, full, top, using_enc);
+ v = value_at_lazy (real_type, value_address (v));
+
+ /* We might be trying to cast to the outermost enclosing
+ type, in which case search_struct_field won't work. */
+ if (TYPE_NAME (real_type) != NULL
+ && !strcmp (TYPE_NAME (real_type), TYPE_NAME (t1)))
+ return v;
+
+ v = search_struct_field (type_name_no_tag (t2), v, 0, real_type, 1);
+ if (v)
+ return v;
+ }
+
+ /* Try downcasting using information from the destination type
+ T2. This wouldn't work properly for classes with virtual
+ bases, but those were handled above. */
v = search_struct_field (type_name_no_tag (t2),
value_zero (t1, not_lval), 0, t1, 1);
if (v)
{
/* Downcasting is possible (t1 is superclass of v2). */
CORE_ADDR addr2 = value_address (v2);
+
addr2 -= value_address (v) + value_embedded_offset (v);
return value_at (type, addr2);
}
{
struct type *type1 = check_typedef (type);
struct type *type2 = check_typedef (value_type (arg2));
- struct type *t1 = check_typedef (TYPE_TARGET_TYPE (type));
+ struct type *t1 = check_typedef (TYPE_TARGET_TYPE (type1));
struct type *t2 = check_typedef (TYPE_TARGET_TYPE (type2));
if (TYPE_CODE (t1) == TYPE_CODE_STRUCT
if (v2)
{
struct value *v = value_addr (v2);
+
deprecated_set_value_type (v, type);
return v;
}
/* No superclass found, just change the pointer type. */
arg2 = value_copy (arg2);
deprecated_set_value_type (arg2, type);
- arg2 = value_change_enclosing_type (arg2, type);
+ set_value_enclosing_type (arg2, type);
set_value_pointed_to_offset (arg2, 0); /* pai: chk_val */
return arg2;
}
struct type *t1 = check_typedef (type);
struct type *dereftype = check_typedef (TYPE_TARGET_TYPE (t1));
struct value *val = value_cast (dereftype, arg2);
+
return value_ref (val);
}
{
struct type *element_type = TYPE_TARGET_TYPE (type);
unsigned element_length = TYPE_LENGTH (check_typedef (element_type));
+
if (element_length > 0 && TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type))
{
struct type *range_type = TYPE_INDEX_TYPE (type);
int val_length = TYPE_LENGTH (type2);
LONGEST low_bound, high_bound, new_length;
+
if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0)
low_bound = 0, high_bound = 0;
new_length = val_length / element_length;
}
if (current_language->c_style_arrays
- && TYPE_CODE (type2) == TYPE_CODE_ARRAY)
+ && TYPE_CODE (type2) == TYPE_CODE_ARRAY
+ && !TYPE_VECTOR (type2))
arg2 = value_coerce_array (arg2);
if (TYPE_CODE (type2) == TYPE_CODE_FUNC)
&& TYPE_NAME (type) != 0)
{
struct value *v = value_cast_structs (type, arg2);
+
if (v)
return v;
}
return value_from_double (type, value_as_double (arg2));
else if (code1 == TYPE_CODE_DECFLOAT && scalar)
{
+ enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
int dec_len = TYPE_LENGTH (type);
gdb_byte dec[16];
if (code2 == TYPE_CODE_FLT)
- decimal_from_floating (arg2, dec, dec_len);
+ decimal_from_floating (arg2, dec, dec_len, byte_order);
else if (code2 == TYPE_CODE_DECFLOAT)
decimal_convert (value_contents (arg2), TYPE_LENGTH (type2),
- dec, dec_len);
+ byte_order, dec, dec_len, byte_order);
else
/* The only option left is an integral type. */
- decimal_from_integral (arg2, dec, dec_len);
+ decimal_from_integral (arg2, dec, dec_len, byte_order);
return value_from_decfloat (type, dec);
}
sees a cast as a simple reinterpretation of the pointer's
bits. */
if (code2 == TYPE_CODE_PTR)
- longest = extract_unsigned_integer (value_contents (arg2),
- TYPE_LENGTH (type2));
+ longest = extract_unsigned_integer
+ (value_contents (arg2), TYPE_LENGTH (type2),
+ gdbarch_byte_order (get_type_arch (type2)));
else
longest = value_as_long (arg2);
return value_from_longest (type, convert_to_boolean ?
otherwise occur when dealing with a target having two byte
pointers and four byte addresses. */
- int addr_bit = gdbarch_addr_bit (current_gdbarch);
-
+ int addr_bit = gdbarch_addr_bit (get_type_arch (type2));
LONGEST longest = value_as_long (arg2);
+
if (addr_bit < sizeof (LONGEST) * HOST_CHAR_BIT)
{
if (longest >= ((LONGEST) 1 << addr_bit)
&& value_as_long (arg2) == 0)
{
struct value *result = allocate_value (type);
+
cplus_make_method_ptr (type, value_contents_writeable (result), 0, 0);
return result;
}
minus one, instead of biasing the normal case. */
return value_from_longest (type, -1);
}
+ else if (code1 == TYPE_CODE_ARRAY && TYPE_VECTOR (type) && scalar)
+ {
+ /* Widen the scalar to a vector. */
+ struct type *eltype;
+ struct value *val;
+ LONGEST low_bound, high_bound;
+ int i;
+
+ if (!get_array_bounds (type, &low_bound, &high_bound))
+ error (_("Could not determine the vector bounds"));
+
+ eltype = check_typedef (TYPE_TARGET_TYPE (type));
+ arg2 = value_cast (eltype, arg2);
+ val = allocate_value (type);
+
+ for (i = 0; i < high_bound - low_bound + 1; i++)
+ {
+ /* Duplicate the contents of arg2 into the destination vector. */
+ memcpy (value_contents_writeable (val) + (i * TYPE_LENGTH (eltype)),
+ value_contents_all (arg2), TYPE_LENGTH (eltype));
+ }
+ return val;
+ }
else if (TYPE_LENGTH (type) == TYPE_LENGTH (type2))
{
if (code1 == TYPE_CODE_PTR && code2 == TYPE_CODE_PTR)
arg2 = value_copy (arg2);
deprecated_set_value_type (arg2, type);
- arg2 = value_change_enclosing_type (arg2, type);
+ set_value_enclosing_type (arg2, type);
set_value_pointed_to_offset (arg2, 0); /* pai: chk_val */
return arg2;
}
return value_at_lazy (type, value_address (arg2));
else if (code1 == TYPE_CODE_VOID)
{
- return value_zero (builtin_type_void, not_lval);
+ return value_zero (type, not_lval);
}
else
{
}
}
+/* The C++ reinterpret_cast operator. */
+
+struct value *
+value_reinterpret_cast (struct type *type, struct value *arg)
+{
+ struct value *result;
+ struct type *real_type = check_typedef (type);
+ struct type *arg_type, *dest_type;
+ int is_ref = 0;
+ enum type_code dest_code, arg_code;
+
+ /* Do reference, function, and array conversion. */
+ arg = coerce_array (arg);
+
+ /* Attempt to preserve the type the user asked for. */
+ dest_type = type;
+
+ /* If we are casting to a reference type, transform
+ reinterpret_cast<T&>(V) to *reinterpret_cast<T*>(&V). */
+ if (TYPE_CODE (real_type) == TYPE_CODE_REF)
+ {
+ is_ref = 1;
+ arg = value_addr (arg);
+ dest_type = lookup_pointer_type (TYPE_TARGET_TYPE (dest_type));
+ real_type = lookup_pointer_type (real_type);
+ }
+
+ arg_type = value_type (arg);
+
+ dest_code = TYPE_CODE (real_type);
+ arg_code = TYPE_CODE (arg_type);
+
+ /* We can convert pointer types, or any pointer type to int, or int
+ type to pointer. */
+ if ((dest_code == TYPE_CODE_PTR && arg_code == TYPE_CODE_INT)
+ || (dest_code == TYPE_CODE_INT && arg_code == TYPE_CODE_PTR)
+ || (dest_code == TYPE_CODE_METHODPTR && arg_code == TYPE_CODE_INT)
+ || (dest_code == TYPE_CODE_INT && arg_code == TYPE_CODE_METHODPTR)
+ || (dest_code == TYPE_CODE_MEMBERPTR && arg_code == TYPE_CODE_INT)
+ || (dest_code == TYPE_CODE_INT && arg_code == TYPE_CODE_MEMBERPTR)
+ || (dest_code == arg_code
+ && (dest_code == TYPE_CODE_PTR
+ || dest_code == TYPE_CODE_METHODPTR
+ || dest_code == TYPE_CODE_MEMBERPTR)))
+ result = value_cast (dest_type, arg);
+ else
+ error (_("Invalid reinterpret_cast"));
+
+ if (is_ref)
+ result = value_cast (type, value_ref (value_ind (result)));
+
+ return result;
+}
+
+/* A helper for value_dynamic_cast. This implements the first of two
+ runtime checks: we iterate over all the base classes of the value's
+ class which are equal to the desired class; if only one of these
+ holds the value, then it is the answer. */
+
+static int
+dynamic_cast_check_1 (struct type *desired_type,
+ const bfd_byte *contents,
+ CORE_ADDR address,
+ struct type *search_type,
+ CORE_ADDR arg_addr,
+ struct type *arg_type,
+ struct value **result)
+{
+ int i, result_count = 0;
+
+ for (i = 0; i < TYPE_N_BASECLASSES (search_type) && result_count < 2; ++i)
+ {
+ int offset = baseclass_offset (search_type, i, contents, address);
+
+ if (offset == -1)
+ error (_("virtual baseclass botch"));
+ if (class_types_same_p (desired_type, TYPE_BASECLASS (search_type, i)))
+ {
+ if (address + offset >= arg_addr
+ && address + offset < arg_addr + TYPE_LENGTH (arg_type))
+ {
+ ++result_count;
+ if (!*result)
+ *result = value_at_lazy (TYPE_BASECLASS (search_type, i),
+ address + offset);
+ }
+ }
+ else
+ result_count += dynamic_cast_check_1 (desired_type,
+ contents + offset,
+ address + offset,
+ TYPE_BASECLASS (search_type, i),
+ arg_addr,
+ arg_type,
+ result);
+ }
+
+ return result_count;
+}
+
+/* A helper for value_dynamic_cast. This implements the second of two
+ runtime checks: we look for a unique public sibling class of the
+ argument's declared class. */
+
+static int
+dynamic_cast_check_2 (struct type *desired_type,
+ const bfd_byte *contents,
+ CORE_ADDR address,
+ struct type *search_type,
+ struct value **result)
+{
+ int i, result_count = 0;
+
+ for (i = 0; i < TYPE_N_BASECLASSES (search_type) && result_count < 2; ++i)
+ {
+ int offset;
+
+ if (! BASETYPE_VIA_PUBLIC (search_type, i))
+ continue;
+
+ offset = baseclass_offset (search_type, i, contents, address);
+ if (offset == -1)
+ error (_("virtual baseclass botch"));
+ if (class_types_same_p (desired_type, TYPE_BASECLASS (search_type, i)))
+ {
+ ++result_count;
+ if (*result == NULL)
+ *result = value_at_lazy (TYPE_BASECLASS (search_type, i),
+ address + offset);
+ }
+ else
+ result_count += dynamic_cast_check_2 (desired_type,
+ contents + offset,
+ address + offset,
+ TYPE_BASECLASS (search_type, i),
+ result);
+ }
+
+ return result_count;
+}
+
+/* The C++ dynamic_cast operator. */
+
+struct value *
+value_dynamic_cast (struct type *type, struct value *arg)
+{
+ int full, top, using_enc;
+ struct type *resolved_type = check_typedef (type);
+ struct type *arg_type = check_typedef (value_type (arg));
+ struct type *class_type, *rtti_type;
+ struct value *result, *tem, *original_arg = arg;
+ CORE_ADDR addr;
+ int is_ref = TYPE_CODE (resolved_type) == TYPE_CODE_REF;
+
+ if (TYPE_CODE (resolved_type) != TYPE_CODE_PTR
+ && TYPE_CODE (resolved_type) != TYPE_CODE_REF)
+ error (_("Argument to dynamic_cast must be a pointer or reference type"));
+ if (TYPE_CODE (TYPE_TARGET_TYPE (resolved_type)) != TYPE_CODE_VOID
+ && TYPE_CODE (TYPE_TARGET_TYPE (resolved_type)) != TYPE_CODE_CLASS)
+ error (_("Argument to dynamic_cast must be pointer to class or `void *'"));
+
+ class_type = check_typedef (TYPE_TARGET_TYPE (resolved_type));
+ if (TYPE_CODE (resolved_type) == TYPE_CODE_PTR)
+ {
+ if (TYPE_CODE (arg_type) != TYPE_CODE_PTR
+ && ! (TYPE_CODE (arg_type) == TYPE_CODE_INT
+ && value_as_long (arg) == 0))
+ error (_("Argument to dynamic_cast does not have pointer type"));
+ if (TYPE_CODE (arg_type) == TYPE_CODE_PTR)
+ {
+ arg_type = check_typedef (TYPE_TARGET_TYPE (arg_type));
+ if (TYPE_CODE (arg_type) != TYPE_CODE_CLASS)
+ error (_("Argument to dynamic_cast does not have pointer to class type"));
+ }
+
+ /* Handle NULL pointers. */
+ if (value_as_long (arg) == 0)
+ return value_zero (type, not_lval);
+
+ arg = value_ind (arg);
+ }
+ else
+ {
+ if (TYPE_CODE (arg_type) != TYPE_CODE_CLASS)
+ error (_("Argument to dynamic_cast does not have class type"));
+ }
+
+ /* If the classes are the same, just return the argument. */
+ if (class_types_same_p (class_type, arg_type))
+ return value_cast (type, arg);
+
+ /* If the target type is a unique base class of the argument's
+ declared type, just cast it. */
+ if (is_ancestor (class_type, arg_type))
+ {
+ if (is_unique_ancestor (class_type, arg))
+ return value_cast (type, original_arg);
+ error (_("Ambiguous dynamic_cast"));
+ }
+
+ rtti_type = value_rtti_type (arg, &full, &top, &using_enc);
+ if (! rtti_type)
+ error (_("Couldn't determine value's most derived type for dynamic_cast"));
+
+ /* Compute the most derived object's address. */
+ addr = value_address (arg);
+ if (full)
+ {
+ /* Done. */
+ }
+ else if (using_enc)
+ addr += top;
+ else
+ addr += top + value_embedded_offset (arg);
+
+ /* dynamic_cast<void *> means to return a pointer to the
+ most-derived object. */
+ if (TYPE_CODE (resolved_type) == TYPE_CODE_PTR
+ && TYPE_CODE (TYPE_TARGET_TYPE (resolved_type)) == TYPE_CODE_VOID)
+ return value_at_lazy (type, addr);
+
+ tem = value_at (type, addr);
+
+ /* The first dynamic check specified in 5.2.7. */
+ if (is_public_ancestor (arg_type, TYPE_TARGET_TYPE (resolved_type)))
+ {
+ if (class_types_same_p (rtti_type, TYPE_TARGET_TYPE (resolved_type)))
+ return tem;
+ result = NULL;
+ if (dynamic_cast_check_1 (TYPE_TARGET_TYPE (resolved_type),
+ value_contents (tem), value_address (tem),
+ rtti_type, addr,
+ arg_type,
+ &result) == 1)
+ return value_cast (type,
+ is_ref ? value_ref (result) : value_addr (result));
+ }
+
+ /* The second dynamic check specified in 5.2.7. */
+ result = NULL;
+ if (is_public_ancestor (arg_type, rtti_type)
+ && dynamic_cast_check_2 (TYPE_TARGET_TYPE (resolved_type),
+ value_contents (tem), value_address (tem),
+ rtti_type, &result) == 1)
+ return value_cast (type,
+ is_ref ? value_ref (result) : value_addr (result));
+
+ if (TYPE_CODE (resolved_type) == TYPE_CODE_PTR)
+ return value_zero (type, not_lval);
+
+ error (_("dynamic_cast failed"));
+}
+
/* Create a value of type TYPE that is zero, and return it. */
struct value *
value_zero (struct type *type, enum lval_type lv)
{
struct value *val = allocate_value (type);
- VALUE_LVAL (val) = lv;
+ VALUE_LVAL (val) = lv;
return val;
}
value_one (struct type *type, enum lval_type lv)
{
struct type *type1 = check_typedef (type);
- struct value *val = NULL; /* avoid -Wall warning */
+ struct value *val;
if (TYPE_CODE (type1) == TYPE_CODE_DECFLOAT)
{
- struct value *int_one = value_from_longest (builtin_type_int32, 1);
- struct value *val;
+ enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
gdb_byte v[16];
- decimal_from_integral (int_one, v, TYPE_LENGTH (builtin_type_int32));
+ decimal_from_string (v, TYPE_LENGTH (type), byte_order, "1");
val = value_from_decfloat (type, v);
}
else if (TYPE_CODE (type1) == TYPE_CODE_FLT)
{
val = value_from_longest (type, (LONGEST) 1);
}
+ else if (TYPE_CODE (type1) == TYPE_CODE_ARRAY && TYPE_VECTOR (type1))
+ {
+ struct type *eltype = check_typedef (TYPE_TARGET_TYPE (type1));
+ int i, n = TYPE_LENGTH (type1) / TYPE_LENGTH (eltype);
+ struct value *tmp;
+
+ val = allocate_value (type);
+ for (i = 0; i < n; i++)
+ {
+ tmp = value_one (eltype, lv);
+ memcpy (value_contents_writeable (val) + i * TYPE_LENGTH (eltype),
+ value_contents_all (tmp), TYPE_LENGTH (eltype));
+ }
+ }
else
{
error (_("Not a numeric type."));
return val;
}
+/* Helper function for value_at, value_at_lazy, and value_at_lazy_stack. */
+
+static struct value *
+get_value_at (struct type *type, CORE_ADDR addr, int lazy)
+{
+ struct value *val;
+
+ if (TYPE_CODE (check_typedef (type)) == TYPE_CODE_VOID)
+ error (_("Attempt to dereference a generic pointer."));
+
+ if (lazy)
+ {
+ val = allocate_value_lazy (type);
+ }
+ else
+ {
+ val = allocate_value (type);
+ read_memory (addr, value_contents_all_raw (val), TYPE_LENGTH (type));
+ }
+
+ VALUE_LVAL (val) = lval_memory;
+ set_value_address (val, addr);
+
+ return val;
+}
+
/* Return a value with type TYPE located at ADDR.
Call value_at only if the data needs to be fetched immediately;
struct value *
value_at (struct type *type, CORE_ADDR addr)
{
- struct value *val;
-
- if (TYPE_CODE (check_typedef (type)) == TYPE_CODE_VOID)
- error (_("Attempt to dereference a generic pointer."));
-
- val = allocate_value (type);
-
- read_memory (addr, value_contents_all_raw (val), TYPE_LENGTH (type));
-
- VALUE_LVAL (val) = lval_memory;
- set_value_address (val, addr);
-
- return val;
+ return get_value_at (type, addr, 0);
}
/* Return a lazy value with type TYPE located at ADDR (cf. value_at). */
struct value *
value_at_lazy (struct type *type, CORE_ADDR addr)
{
- struct value *val;
-
- if (TYPE_CODE (check_typedef (type)) == TYPE_CODE_VOID)
- error (_("Attempt to dereference a generic pointer."));
-
- val = allocate_value_lazy (type);
-
- VALUE_LVAL (val) = lval_memory;
- set_value_address (val, addr);
-
- return val;
+ return get_value_at (type, addr, 1);
}
/* Called only from the value_contents and value_contents_all()
{
gdb_assert (value_lazy (val));
allocate_value_contents (val);
- if (VALUE_LVAL (val) == lval_memory)
+ if (value_bitsize (val))
+ {
+ /* To read a lazy bitfield, read the entire enclosing value. This
+ prevents reading the same block of (possibly volatile) memory once
+ per bitfield. It would be even better to read only the containing
+ word, but we have no way to record that just specific bits of a
+ value have been fetched. */
+ struct type *type = check_typedef (value_type (val));
+ enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
+ struct value *parent = value_parent (val);
+ LONGEST offset = value_offset (val);
+ LONGEST num = unpack_bits_as_long (value_type (val),
+ (value_contents_for_printing (parent)
+ + offset),
+ value_bitpos (val),
+ value_bitsize (val));
+ int length = TYPE_LENGTH (type);
+
+ if (!value_bits_valid (val,
+ TARGET_CHAR_BIT * offset + value_bitpos (val),
+ value_bitsize (val)))
+ error (_("value has been optimized out"));
+
+ store_signed_integer (value_contents_raw (val), length, byte_order, num);
+ }
+ else if (VALUE_LVAL (val) == lval_memory)
{
CORE_ADDR addr = value_address (val);
int length = TYPE_LENGTH (check_typedef (value_enclosing_type (val)));
if (length)
- read_memory (addr, value_contents_all_raw (val), length);
+ {
+ if (value_stack (val))
+ read_stack (addr, value_contents_all_raw (val), length);
+ else
+ read_memory (addr, value_contents_all_raw (val), length);
+ }
}
else if (VALUE_LVAL (val) == lval_register)
{
fprintf_unfiltered (gdb_stdlog, " register=%d",
VALUE_REGNUM (new_val));
else if (VALUE_LVAL (new_val) == lval_memory)
- fprintf_unfiltered (gdb_stdlog, " address=0x%s",
- paddr_nz (value_address (new_val)));
+ fprintf_unfiltered (gdb_stdlog, " address=%s",
+ paddress (gdbarch,
+ value_address (new_val)));
else
fprintf_unfiltered (gdb_stdlog, " computed");
type = value_type (toval);
if (VALUE_LVAL (toval) != lval_internalvar)
- {
- toval = value_coerce_to_target (toval);
- fromval = value_cast (type, fromval);
- }
+ fromval = value_cast (type, fromval);
else
{
/* Coerce arrays and functions to pointers, except for arrays
case lval_internalvar:
set_internalvar (VALUE_INTERNALVAR (toval), fromval);
val = value_copy (fromval);
- val = value_change_enclosing_type (val,
- value_enclosing_type (fromval));
+ set_value_enclosing_type (val, value_enclosing_type (fromval));
set_value_embedded_offset (val, value_embedded_offset (fromval));
- set_value_pointed_to_offset (val,
- value_pointed_to_offset (fromval));
+ set_value_pointed_to_offset (val, value_pointed_to_offset (fromval));
return val;
case lval_internalvar_component:
if (value_bitsize (toval))
{
- /* We assume that the argument to read_memory is in units
- of host chars. FIXME: Is that correct? */
+ struct value *parent = value_parent (toval);
+
+ changed_addr = value_address (parent) + value_offset (toval);
changed_len = (value_bitpos (toval)
+ value_bitsize (toval)
+ HOST_CHAR_BIT - 1)
/ HOST_CHAR_BIT;
+ /* If we can read-modify-write exactly the size of the
+ containing type (e.g. short or int) then do so. This
+ is safer for volatile bitfields mapped to hardware
+ registers. */
+ if (changed_len < TYPE_LENGTH (type)
+ && TYPE_LENGTH (type) <= (int) sizeof (LONGEST)
+ && ((LONGEST) changed_addr % TYPE_LENGTH (type)) == 0)
+ changed_len = TYPE_LENGTH (type);
+
if (changed_len > (int) sizeof (LONGEST))
error (_("Can't handle bitfields which don't fit in a %d bit word."),
(int) sizeof (LONGEST) * HOST_CHAR_BIT);
- read_memory (value_address (toval), buffer, changed_len);
- modify_field (buffer, value_as_long (fromval),
+ read_memory (changed_addr, buffer, changed_len);
+ modify_field (type, buffer, value_as_long (fromval),
value_bitpos (toval), value_bitsize (toval));
- changed_addr = value_address (toval);
dest_buffer = buffer;
}
else
}
write_memory (changed_addr, dest_buffer, changed_len);
- if (deprecated_memory_changed_hook)
- deprecated_memory_changed_hook (changed_addr, changed_len);
+ observer_notify_memory_changed (changed_addr, changed_len,
+ dest_buffer);
}
break;
{
if (value_bitsize (toval))
{
+ struct value *parent = value_parent (toval);
+ int offset = value_offset (parent) + value_offset (toval);
int changed_len;
gdb_byte buffer[sizeof (LONGEST)];
error (_("Can't handle bitfields which don't fit in a %d bit word."),
(int) sizeof (LONGEST) * HOST_CHAR_BIT);
- get_frame_register_bytes (frame, value_reg,
- value_offset (toval),
+ get_frame_register_bytes (frame, value_reg, offset,
changed_len, buffer);
- modify_field (buffer, value_as_long (fromval),
- value_bitpos (toval),
- value_bitsize (toval));
+ modify_field (type, buffer, value_as_long (fromval),
+ value_bitpos (toval), value_bitsize (toval));
- put_frame_register_bytes (frame, value_reg,
- value_offset (toval),
+ put_frame_register_bytes (frame, value_reg, offset,
changed_len, buffer);
}
else
{
case lval_memory:
case lval_register:
+ case lval_computed:
reinit_frame_cache ();
{
struct frame_info *fi = frame_find_by_id (old_frame);
+
if (fi != NULL)
select_frame (fi);
}
memcpy (value_contents_raw (val), value_contents (fromval),
TYPE_LENGTH (type));
deprecated_set_value_type (val, type);
- val = value_change_enclosing_type (val,
- value_enclosing_type (fromval));
+ set_value_enclosing_type (val, value_enclosing_type (fromval));
set_value_embedded_offset (val, value_embedded_offset (fromval));
set_value_pointed_to_offset (val, value_pointed_to_offset (fromval));
frame = block_innermost_frame (b);
if (!frame)
{
- if (BLOCK_FUNCTION (b)
+ if (BLOCK_FUNCTION (b) && !block_inlined_p (b)
&& SYMBOL_PRINT_NAME (BLOCK_FUNCTION (b)))
error (_("No frame is currently executing in block %s."),
SYMBOL_PRINT_NAME (BLOCK_FUNCTION (b)));
|| TYPE_CODE (type) == TYPE_CODE_FUNC)
{
CORE_ADDR addr = value_address (val);
+
return value_from_pointer (lookup_pointer_type (type), addr);
}
switch (TYPE_CODE (valtype))
{
case TYPE_CODE_ARRAY:
+ return TYPE_VECTOR (valtype) ? 0 : 1;
case TYPE_CODE_STRING:
return 1;
default:
value_addr (struct value *arg1)
{
struct value *arg2;
-
struct type *type = check_typedef (value_type (arg1));
+
if (TYPE_CODE (type) == TYPE_CODE_REF)
{
/* Copy the value, but change the type from (T&) to (T*). We
/* This may be a pointer to a base subobject; so remember the
full derived object's type ... */
- arg2 = value_change_enclosing_type (arg2, lookup_pointer_type (value_enclosing_type (arg1)));
+ set_value_enclosing_type (arg2,
+ lookup_pointer_type (value_enclosing_type (arg1)));
/* ... and also the relative position of the subobject in the full
object. */
set_value_pointed_to_offset (arg2, value_embedded_offset (arg1));
value_ref (struct value *arg1)
{
struct value *arg2;
-
struct type *type = check_typedef (value_type (arg1));
+
if (TYPE_CODE (type) == TYPE_CODE_REF)
return arg1;
base_type = check_typedef (value_type (arg1));
+ if (VALUE_LVAL (arg1) == lval_computed)
+ {
+ struct lval_funcs *funcs = value_computed_funcs (arg1);
+
+ if (funcs->indirect)
+ {
+ struct value *result = funcs->indirect (arg1);
+
+ if (result)
+ return result;
+ }
+ }
+
if (TYPE_CODE (base_type) == TYPE_CODE_PTR)
{
struct type *enc_type;
+
/* We may be pointing to something embedded in a larger object.
Get the real type of the enclosing object. */
enc_type = check_typedef (value_enclosing_type (arg1));
/* Re-adjust type. */
deprecated_set_value_type (arg2, TYPE_TARGET_TYPE (base_type));
/* Add embedding info. */
- arg2 = value_change_enclosing_type (arg2, enc_type);
+ set_value_enclosing_type (arg2, enc_type);
set_value_embedded_offset (arg2, value_pointed_to_offset (arg1));
/* We may be pointing to an object of some derived type. */
int idx;
unsigned int typelength;
struct value *val;
- struct type *rangetype;
struct type *arraytype;
- CORE_ADDR addr;
/* Validate that the bounds are reasonable and that each of the
elements have the same size. */
}
}
- rangetype = create_range_type ((struct type *) NULL,
- builtin_type_int32,
- lowbound, highbound);
- arraytype = create_array_type ((struct type *) NULL,
- value_enclosing_type (elemvec[0]),
- rangetype);
+ arraytype = lookup_array_range_type (value_enclosing_type (elemvec[0]),
+ lowbound, highbound);
if (!current_language->c_style_arrays)
{
struct value *val;
int lowbound = current_language->string_lower_bound;
int highbound = len / TYPE_LENGTH (char_type);
- struct type *rangetype = create_range_type ((struct type *) NULL,
- builtin_type_int32,
- lowbound,
- highbound + lowbound - 1);
struct type *stringtype
- = create_array_type ((struct type *) NULL, char_type, rangetype);
+ = lookup_array_range_type (char_type, lowbound, highbound + lowbound - 1);
val = allocate_value (stringtype);
memcpy (value_contents_raw (val), ptr, len);
struct value *val;
int lowbound = current_language->string_lower_bound;
int highbound = len / TYPE_LENGTH (char_type);
- struct type *rangetype = create_range_type ((struct type *) NULL,
- builtin_type_int32,
- lowbound,
- highbound + lowbound - 1);
struct type *stringtype
- = create_string_type ((struct type *) NULL, char_type, rangetype);
+ = lookup_string_range_type (char_type, lowbound, highbound + lowbound - 1);
val = allocate_value (stringtype);
memcpy (value_contents_raw (val), ptr, len);
}
struct value *
-value_bitstring (char *ptr, int len)
+value_bitstring (char *ptr, int len, struct type *index_type)
{
struct value *val;
- struct type *domain_type = create_range_type (NULL,
- builtin_type_int32,
- 0, len - 1);
- struct type *type = create_set_type ((struct type *) NULL,
- domain_type);
+ struct type *domain_type
+ = create_range_type (NULL, index_type, 0, len - 1);
+ struct type *type = create_set_type (NULL, domain_type);
+
TYPE_CODE (type) = TYPE_CODE_BITSTRING;
val = allocate_value (type);
memcpy (value_contents_raw (val), ptr, TYPE_LENGTH (type));
fields, look for a baseclass named NAME. */
static struct value *
-search_struct_field (char *name, struct value *arg1, int offset,
+search_struct_field (const char *name, struct value *arg1, int offset,
struct type *type, int looking_for_baseclass)
{
int i;
- int nbases = TYPE_N_BASECLASSES (type);
+ int nbases;
CHECK_TYPEDEF (type);
+ nbases = TYPE_N_BASECLASSES (type);
if (!looking_for_baseclass)
for (i = TYPE_NFIELDS (type) - 1; i >= nbases; i--)
if (t_field_name && (strcmp_iw (t_field_name, name) == 0))
{
struct value *v;
+
if (field_is_static (&TYPE_FIELD (type, i)))
{
v = value_static_field (type, i);
if (v == 0)
- error (_("field %s is nonexistent or has been optimised out"),
+ error (_("field %s is nonexistent or has been optimized out"),
name);
}
else
&& (strcmp_iw (t_field_name, "else") == 0))))
{
struct type *field_type = TYPE_FIELD_TYPE (type, i);
+
if (TYPE_CODE (field_type) == TYPE_CODE_UNION
|| TYPE_CODE (field_type) == TYPE_CODE_STRUCT)
{
boffset = baseclass_offset (type, i,
value_contents (arg1) + offset,
- value_address (arg1) + offset);
+ value_address (arg1)
+ + value_embedded_offset (arg1)
+ + offset);
if (boffset == -1)
error (_("virtual baseclass botch"));
by the user program. Make sure that it still points to a
valid memory location. */
- boffset += offset;
- if (boffset < 0 || boffset >= TYPE_LENGTH (type))
+ boffset += value_embedded_offset (arg1) + offset;
+ if (boffset < 0
+ || boffset >= TYPE_LENGTH (value_enclosing_type (arg1)))
{
CORE_ADDR base_addr;
}
else
{
- if (VALUE_LVAL (arg1) == lval_memory && value_lazy (arg1))
- v2 = allocate_value_lazy (basetype);
- else
- {
- v2 = allocate_value (basetype);
- memcpy (value_contents_raw (v2),
- value_contents_raw (arg1) + boffset,
- TYPE_LENGTH (basetype));
- }
- set_value_component_location (v2, arg1);
- VALUE_FRAME_ID (v2) = VALUE_FRAME_ID (arg1);
- set_value_offset (v2, value_offset (arg1) + boffset);
+ v2 = value_copy (arg1);
+ deprecated_set_value_type (v2, basetype);
+ set_value_embedded_offset (v2, boffset);
}
if (found_baseclass)
(value) -1, else return NULL. */
static struct value *
-search_struct_method (char *name, struct value **arg1p,
+search_struct_method (const char *name, struct value **arg1p,
struct value **args, int offset,
int *static_memfuncp, struct type *type)
{
for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; i--)
{
char *t_field_name = TYPE_FN_FIELDLIST_NAME (type, i);
+
/* FIXME! May need to check for ARM demangling here */
if (strncmp (t_field_name, "__", 2) == 0 ||
strncmp (t_field_name, "op", 2) == 0 ||
{
int j = TYPE_FN_FIELDLIST_LENGTH (type, i) - 1;
struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
- name_matched = 1;
+ name_matched = 1;
check_stub_method_group (type, i);
if (j > 0 && args == 0)
error (_("cannot resolve overloaded method `%s': no arguments supplied"), name);
if (offset < 0 || offset >= TYPE_LENGTH (type))
{
gdb_byte *tmp = alloca (TYPE_LENGTH (baseclass));
+
if (target_read_memory (value_address (*arg1p) + offset,
tmp, TYPE_LENGTH (baseclass)) != 0)
error (_("virtual baseclass botch"));
struct value *
value_struct_elt (struct value **argp, struct value **args,
- char *name, int *static_memfuncp, char *err)
+ const char *name, int *static_memfuncp, const char *err)
{
struct type *t;
struct value *v;
}
if (!v)
- error (_("Structure has no component named %s."), name);
+ throw_error (NOT_FOUND_ERROR,
+ _("Structure has no component named %s."), name);
return v;
}
*/
static struct fn_field *
-find_method_list (struct value **argp, char *method,
+find_method_list (struct value **argp, const char *method,
int offset, struct type *type, int *num_fns,
struct type **basetype, int *boffset)
{
{
/* pai: FIXME What about operators and type conversions? */
char *fn_field_name = TYPE_FN_FIELDLIST_NAME (type, i);
+
if (fn_field_name && (strcmp_iw (fn_field_name, method) == 0))
{
int len = TYPE_FN_FIELDLIST_LENGTH (type, i);
for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--)
{
int base_offset;
+
if (BASETYPE_VIA_VIRTUAL (type, i))
{
base_offset = value_offset (*argp) + offset;
*/
struct fn_field *
-value_find_oload_method_list (struct value **argp, char *method,
+value_find_oload_method_list (struct value **argp, const char *method,
int offset, int *num_fns,
struct type **basetype, int *boffset)
{
matches on the argument types according to the overload resolution
rules.
+ METHOD can be one of three values:
+ NON_METHOD for non-member functions.
+ METHOD: for member functions.
+ BOTH: used for overload resolution of operators where the
+ candidates are expected to be either member or non member
+ functions. In this case the first argument ARGTYPES
+ (representing 'this') is expected to be a reference to the
+ target object, and will be dereferenced when attempting the
+ non-member search.
+
In the case of class methods, the parameter OBJ is an object value
in which to search for overloaded methods.
If a method is being searched for, and it is a static method,
then STATICP will point to a non-zero value.
+ If NO_ADL argument dependent lookup is disabled. This is used to prevent
+ ADL overload candidates when performing overload resolution for a fully
+ qualified name.
+
Note: This function does *not* check the value of
overload_resolution. Caller must check it to see whether overload
resolution is permitted.
int
find_overload_match (struct type **arg_types, int nargs,
- char *name, int method, int lax,
- struct value **objp, struct symbol *fsym,
+ const char *name, enum oload_search_type method,
+ int lax, struct value **objp, struct symbol *fsym,
struct value **valp, struct symbol **symp,
- int *staticp)
+ int *staticp, const int no_adl)
{
struct value *obj = (objp ? *objp : NULL);
/* Index of best overloaded function. */
- int oload_champ;
+ int func_oload_champ = -1;
+ int method_oload_champ = -1;
+
/* The measure for the current best match. */
- struct badness_vector *oload_champ_bv = NULL;
+ struct badness_vector *method_badness = NULL;
+ struct badness_vector *func_badness = NULL;
+
struct value *temp = obj;
/* For methods, the list of overloaded methods. */
struct fn_field *fns_ptr = NULL;
int num_fns = 0;
struct type *basetype = NULL;
int boffset;
- int ix;
- int static_offset;
- struct cleanup *old_cleanups = NULL;
+
+ struct cleanup *all_cleanups = make_cleanup (null_cleanup, NULL);
const char *obj_type_name = NULL;
- char *func_name = NULL;
+ const char *func_name = NULL;
enum oload_classification match_quality;
+ enum oload_classification method_match_quality = INCOMPATIBLE;
+ enum oload_classification func_match_quality = INCOMPATIBLE;
/* Get the list of overloaded methods or functions. */
- if (method)
+ if (method == METHOD || method == BOTH)
{
gdb_assert (obj);
+
+ /* OBJ may be a pointer value rather than the object itself. */
+ obj = coerce_ref (obj);
+ while (TYPE_CODE (check_typedef (value_type (obj))) == TYPE_CODE_PTR)
+ obj = coerce_ref (value_ind (obj));
obj_type_name = TYPE_NAME (value_type (obj));
- /* Hack: evaluate_subexp_standard often passes in a pointer
- value rather than the object itself, so try again. */
- if ((!obj_type_name || !*obj_type_name)
- && (TYPE_CODE (value_type (obj)) == TYPE_CODE_PTR))
- obj_type_name = TYPE_NAME (TYPE_TARGET_TYPE (value_type (obj)));
+ /* First check whether this is a data member, e.g. a pointer to
+ a function. */
+ if (TYPE_CODE (check_typedef (value_type (obj))) == TYPE_CODE_STRUCT)
+ {
+ *valp = search_struct_field (name, obj, 0,
+ check_typedef (value_type (obj)), 0);
+ if (*valp)
+ {
+ *staticp = 1;
+ return 0;
+ }
+ }
+
+ /* Retrieve the list of methods with the name NAME. */
fns_ptr = value_find_oload_method_list (&temp, name,
0, &num_fns,
&basetype, &boffset);
- if (!fns_ptr || !num_fns)
+ /* If this is a method only search, and no methods were found
+ the search has faild. */
+ if (method == METHOD && (!fns_ptr || !num_fns))
error (_("Couldn't find method %s%s%s"),
obj_type_name,
(obj_type_name && *obj_type_name) ? "::" : "",
/* If we are dealing with stub method types, they should have
been resolved by find_method_list via
value_find_oload_method_list above. */
- gdb_assert (TYPE_DOMAIN_TYPE (fns_ptr[0].type) != NULL);
- oload_champ = find_oload_champ (arg_types, nargs, method,
- num_fns, fns_ptr,
- oload_syms, &oload_champ_bv);
+ if (fns_ptr)
+ {
+ gdb_assert (TYPE_DOMAIN_TYPE (fns_ptr[0].type) != NULL);
+ method_oload_champ = find_oload_champ (arg_types, nargs, method,
+ num_fns, fns_ptr,
+ oload_syms, &method_badness);
+
+ method_match_quality =
+ classify_oload_match (method_badness, nargs,
+ oload_method_static (method, fns_ptr,
+ method_oload_champ));
+
+ make_cleanup (xfree, method_badness);
+ }
+
}
- else
+
+ if (method == NON_METHOD || method == BOTH)
{
- const char *qualified_name = SYMBOL_CPLUS_DEMANGLED_NAME (fsym);
+ const char *qualified_name = NULL;
- /* If we have a C++ name, try to extract just the function
- part. */
- if (qualified_name)
- func_name = cp_func_name (qualified_name);
+ /* If the the overload match is being search for both
+ as a method and non member function, the first argument
+ must now be dereferenced. */
+ if (method == BOTH)
+ arg_types[0] = TYPE_TARGET_TYPE (arg_types[0]);
- /* If there was no C++ name, this must be a C-style function.
- Just return the same symbol. Do the same if cp_func_name
- fails for some reason. */
+ if (fsym)
+ {
+ qualified_name = SYMBOL_NATURAL_NAME (fsym);
+
+ /* If we have a function with a C++ name, try to extract just
+ the function part. Do not try this for non-functions (e.g.
+ function pointers). */
+ if (qualified_name
+ && TYPE_CODE (check_typedef (SYMBOL_TYPE (fsym))) == TYPE_CODE_FUNC)
+ {
+ char *temp;
+
+ temp = cp_func_name (qualified_name);
+
+ /* If cp_func_name did not remove anything, the name of the
+ symbol did not include scope or argument types - it was
+ probably a C-style function. */
+ if (temp)
+ {
+ make_cleanup (xfree, temp);
+ if (strcmp (temp, qualified_name) == 0)
+ func_name = NULL;
+ else
+ func_name = temp;
+ }
+ }
+ }
+ else
+ {
+ func_name = name;
+ qualified_name = name;
+ }
+
+ /* If there was no C++ name, this must be a C-style function or
+ not a function at all. Just return the same symbol. Do the
+ same if cp_func_name fails for some reason. */
if (func_name == NULL)
{
*symp = fsym;
return 0;
}
- old_cleanups = make_cleanup (xfree, func_name);
- make_cleanup (xfree, oload_syms);
- make_cleanup (xfree, oload_champ_bv);
+ func_oload_champ = find_oload_champ_namespace (arg_types, nargs,
+ func_name,
+ qualified_name,
+ &oload_syms,
+ &func_badness,
+ no_adl);
- oload_champ = find_oload_champ_namespace (arg_types, nargs,
- func_name,
- qualified_name,
- &oload_syms,
- &oload_champ_bv);
+ if (func_oload_champ >= 0)
+ func_match_quality = classify_oload_match (func_badness, nargs, 0);
+
+ make_cleanup (xfree, oload_syms);
+ make_cleanup (xfree, func_badness);
}
- /* Check how bad the best match is. */
+ /* Did we find a match ? */
+ if (method_oload_champ == -1 && func_oload_champ == -1)
+ throw_error (NOT_FOUND_ERROR,
+ _("No symbol \"%s\" in current context."),
+ name);
- match_quality =
- classify_oload_match (oload_champ_bv, nargs,
- oload_method_static (method, fns_ptr,
- oload_champ));
+ /* If we have found both a method match and a function
+ match, find out which one is better, and calculate match
+ quality. */
+ if (method_oload_champ >= 0 && func_oload_champ >= 0)
+ {
+ switch (compare_badness (func_badness, method_badness))
+ {
+ case 0: /* Top two contenders are equally good. */
+ /* FIXME: GDB does not support the general ambiguous
+ case. All candidates should be collected and presented
+ the the user. */
+ error (_("Ambiguous overload resolution"));
+ break;
+ case 1: /* Incomparable top contenders. */
+ /* This is an error incompatible candidates
+ should not have been proposed. */
+ error (_("Internal error: incompatible overload candidates proposed"));
+ break;
+ case 2: /* Function champion. */
+ method_oload_champ = -1;
+ match_quality = func_match_quality;
+ break;
+ case 3: /* Method champion. */
+ func_oload_champ = -1;
+ match_quality = method_match_quality;
+ break;
+ default:
+ error (_("Internal error: unexpected overload comparison result"));
+ break;
+ }
+ }
+ else
+ {
+ /* We have either a method match or a function match. */
+ if (method_oload_champ >= 0)
+ match_quality = method_match_quality;
+ else
+ match_quality = func_match_quality;
+ }
if (match_quality == INCOMPATIBLE)
{
- if (method)
+ if (method == METHOD)
error (_("Cannot resolve method %s%s%s to any overloaded instance"),
obj_type_name,
(obj_type_name && *obj_type_name) ? "::" : "",
}
else if (match_quality == NON_STANDARD)
{
- if (method)
+ if (method == METHOD)
warning (_("Using non-standard conversion to match method %s%s%s to supplied arguments"),
obj_type_name,
(obj_type_name && *obj_type_name) ? "::" : "",
func_name);
}
- if (method)
+ if (staticp != NULL)
+ *staticp = oload_method_static (method, fns_ptr, method_oload_champ);
+
+ if (method_oload_champ >= 0)
{
- if (staticp != NULL)
- *staticp = oload_method_static (method, fns_ptr, oload_champ);
- if (TYPE_FN_FIELD_VIRTUAL_P (fns_ptr, oload_champ))
- *valp = value_virtual_fn_field (&temp, fns_ptr, oload_champ,
+ if (TYPE_FN_FIELD_VIRTUAL_P (fns_ptr, method_oload_champ))
+ *valp = value_virtual_fn_field (&temp, fns_ptr, method_oload_champ,
basetype, boffset);
else
- *valp = value_fn_field (&temp, fns_ptr, oload_champ,
+ *valp = value_fn_field (&temp, fns_ptr, method_oload_champ,
basetype, boffset);
}
else
- {
- *symp = oload_syms[oload_champ];
- }
+ *symp = oload_syms[func_oload_champ];
if (objp)
{
struct type *temp_type = check_typedef (value_type (temp));
struct type *obj_type = check_typedef (value_type (*objp));
+
if (TYPE_CODE (temp_type) != TYPE_CODE_PTR
&& (TYPE_CODE (obj_type) == TYPE_CODE_PTR
|| TYPE_CODE (obj_type) == TYPE_CODE_REF))
}
*objp = temp;
}
- if (old_cleanups != NULL)
- do_cleanups (old_cleanups);
+
+ do_cleanups (all_cleanups);
switch (match_quality)
{
runs out of namespaces. It stores the overloaded functions in
*OLOAD_SYMS, and the badness vector in *OLOAD_CHAMP_BV. The
calling function is responsible for freeing *OLOAD_SYMS and
- *OLOAD_CHAMP_BV. */
+ *OLOAD_CHAMP_BV. If NO_ADL, argument dependent lookup is not
+ performned. */
static int
find_oload_champ_namespace (struct type **arg_types, int nargs,
const char *func_name,
const char *qualified_name,
struct symbol ***oload_syms,
- struct badness_vector **oload_champ_bv)
+ struct badness_vector **oload_champ_bv,
+ const int no_adl)
{
int oload_champ;
func_name,
qualified_name, 0,
oload_syms, oload_champ_bv,
- &oload_champ);
+ &oload_champ,
+ no_adl);
return oload_champ;
}
/* Helper function for find_oload_champ_namespace; NAMESPACE_LEN is
how deep we've looked for namespaces, and the champ is stored in
OLOAD_CHAMP. The return value is 1 if the champ is a good one, 0
- if it isn't.
+ if it isn't. Other arguments are the same as in
+ find_oload_champ_namespace
It is the caller's responsibility to free *OLOAD_SYMS and
*OLOAD_CHAMP_BV. */
int namespace_len,
struct symbol ***oload_syms,
struct badness_vector **oload_champ_bv,
- int *oload_champ)
+ int *oload_champ,
+ const int no_adl)
{
int next_namespace_len = namespace_len;
int searched_deeper = 0;
func_name, qualified_name,
next_namespace_len,
oload_syms, oload_champ_bv,
- oload_champ))
+ oload_champ, no_adl))
{
return 1;
}
function symbol to start off with.) */
old_cleanups = make_cleanup (xfree, *oload_syms);
- old_cleanups = make_cleanup (xfree, *oload_champ_bv);
+ make_cleanup (xfree, *oload_champ_bv);
new_namespace = alloca (namespace_len + 1);
strncpy (new_namespace, qualified_name, namespace_len);
new_namespace[namespace_len] = '\0';
new_oload_syms = make_symbol_overload_list (func_name,
new_namespace);
+
+ /* If we have reached the deepest level perform argument
+ determined lookup. */
+ if (!searched_deeper && !no_adl)
+ make_symbol_overload_list_adl (arg_types, nargs, func_name);
+
while (new_oload_syms[num_fns])
++num_fns;
}
else
{
- gdb_assert (new_oload_champ != -1);
*oload_syms = new_oload_syms;
*oload_champ = new_oload_champ;
*oload_champ_bv = new_oload_champ_bv;
- discard_cleanups (old_cleanups);
+ do_cleanups (old_cleanups);
return 0;
}
}
for (jj = 0; jj < nargs - static_offset; jj++)
fprintf_filtered (gdb_stderr,
"...Badness @ %d : %d\n",
- jj, bv->rank[jj]);
+ jj, bv->rank[jj].rank);
fprintf_filtered (gdb_stderr,
"Overload resolution champion is %d, ambiguous? %d\n",
oload_champ, oload_ambiguous);
static int
oload_method_static (int method, struct fn_field *fns_ptr, int index)
{
- if (method && TYPE_FN_FIELD_STATIC_P (fns_ptr, index))
+ if (method && fns_ptr && index >= 0
+ && TYPE_FN_FIELD_STATIC_P (fns_ptr, index))
return 1;
else
return 0;
for (ix = 1; ix <= nargs - static_offset; ix++)
{
- if (oload_champ_bv->rank[ix] >= 100)
+ /* If this conversion is as bad as INCOMPATIBLE_TYPE_BADNESS
+ or worse return INCOMPATIBLE. */
+ if (compare_ranks (oload_champ_bv->rank[ix],
+ INCOMPATIBLE_TYPE_BADNESS) <= 0)
return INCOMPATIBLE; /* Truly mismatched types. */
- else if (oload_champ_bv->rank[ix] >= 10)
+ /* Otherwise If this conversion is as bad as
+ NS_POINTER_CONVERSION_BADNESS or worse return NON_STANDARD. */
+ else if (compare_ranks (oload_champ_bv->rank[ix],
+ NS_POINTER_CONVERSION_BADNESS) <= 0)
return NON_STANDARD; /* Non-standard type conversions
needed. */
}
{
int i;
+ /* The type may be a stub. */
+ CHECK_TYPEDEF (type);
+
for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--)
{
char *t_field_name = TYPE_FIELD_NAME (type, i);
+
if (t_field_name && (strcmp_iw (t_field_name, name) == 0))
return 1;
}
the comment before value_struct_elt_for_reference. */
struct value *
-value_aggregate_elt (struct type *curtype,
- char *name, int want_address,
+value_aggregate_elt (struct type *curtype, char *name,
+ struct type *expect_type, int want_address,
enum noside noside)
{
switch (TYPE_CODE (curtype))
case TYPE_CODE_STRUCT:
case TYPE_CODE_UNION:
return value_struct_elt_for_reference (curtype, 0, curtype,
- name, NULL,
+ name, expect_type,
want_address, noside);
case TYPE_CODE_NAMESPACE:
return value_namespace_elt (curtype, name,
}
}
+/* Compares the two method/function types T1 and T2 for "equality"
+ with respect to the the methods' parameters. If the types of the
+ two parameter lists are the same, returns 1; 0 otherwise. This
+ comparison may ignore any artificial parameters in T1 if
+ SKIP_ARTIFICIAL is non-zero. This function will ALWAYS skip
+ the first artificial parameter in T1, assumed to be a 'this' pointer.
+
+ The type T2 is expected to have come from make_params (in eval.c). */
+
+static int
+compare_parameters (struct type *t1, struct type *t2, int skip_artificial)
+{
+ int start = 0;
+
+ if (TYPE_FIELD_ARTIFICIAL (t1, 0))
+ ++start;
+
+ /* If skipping artificial fields, find the first real field
+ in T1. */
+ if (skip_artificial)
+ {
+ while (start < TYPE_NFIELDS (t1)
+ && TYPE_FIELD_ARTIFICIAL (t1, start))
+ ++start;
+ }
+
+ /* Now compare parameters */
+
+ /* Special case: a method taking void. T1 will contain no
+ non-artificial fields, and T2 will contain TYPE_CODE_VOID. */
+ if ((TYPE_NFIELDS (t1) - start) == 0 && TYPE_NFIELDS (t2) == 1
+ && TYPE_CODE (TYPE_FIELD_TYPE (t2, 0)) == TYPE_CODE_VOID)
+ return 1;
+
+ if ((TYPE_NFIELDS (t1) - start) == TYPE_NFIELDS (t2))
+ {
+ int i;
+
+ for (i = 0; i < TYPE_NFIELDS (t2); ++i)
+ {
+ if (compare_ranks (rank_one_type (TYPE_FIELD_TYPE (t1, start + i),
+ TYPE_FIELD_TYPE (t2, i)),
+ EXACT_MATCH_BADNESS) != 0)
+ return 0;
+ }
+
+ return 1;
+ }
+
+ return 0;
+}
+
/* C++: Given an aggregate type CURTYPE, and a member name NAME,
return the address of this member as a "pointer to member" type.
If INTYPE is non-null, then it will be the type of the member we
}
if (t_field_name && strcmp (t_field_name, name) == 0)
{
- int j = TYPE_FN_FIELDLIST_LENGTH (t, i);
+ int j;
+ int len = TYPE_FN_FIELDLIST_LENGTH (t, i);
struct fn_field *f = TYPE_FN_FIELDLIST1 (t, i);
check_stub_method_group (t, i);
- if (intype == 0 && j > 1)
- error (_("non-unique member `%s' requires type instantiation"), name);
if (intype)
{
- while (j--)
- if (TYPE_FN_FIELD_TYPE (f, j) == intype)
- break;
- if (j < 0)
+ for (j = 0; j < len; ++j)
+ {
+ if (compare_parameters (TYPE_FN_FIELD_TYPE (f, j), intype, 0)
+ || compare_parameters (TYPE_FN_FIELD_TYPE (f, j), intype, 1))
+ break;
+ }
+
+ if (j == len)
error (_("no member function matches that type instantiation"));
}
else
- j = 0;
+ {
+ int ii;
+
+ j = -1;
+ for (ii = 0; ii < TYPE_FN_FIELDLIST_LENGTH (t, i);
+ ++ii)
+ {
+ /* Skip artificial methods. This is necessary if,
+ for example, the user wants to "print
+ subclass::subclass" with only one user-defined
+ constructor. There is no ambiguity in this
+ case. */
+ if (TYPE_FN_FIELD_ARTIFICIAL (f, ii))
+ continue;
+
+ /* Desired method is ambiguous if more than one
+ method is defined. */
+ if (j != -1)
+ error (_("non-unique member `%s' requires type instantiation"), name);
+
+ j = ii;
+ }
+ }
if (TYPE_FN_FIELD_STATIC_P (f, j))
{
struct symbol *s =
lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, j),
0, VAR_DOMAIN, 0);
+
if (s == NULL)
return NULL;
struct symbol *s =
lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, j),
0, VAR_DOMAIN, 0);
+
if (s == NULL)
return NULL;
struct symbol *sym;
struct value *result;
- sym = cp_lookup_symbol_namespace (namespace_name, name, NULL,
- get_selected_block (0),
- VAR_DOMAIN);
+ sym = cp_lookup_symbol_namespace (namespace_name, name,
+ get_selected_block (0), VAR_DOMAIN);
+
+ if (sym == NULL)
+ {
+ char *concatenated_name = alloca (strlen (namespace_name) + 2
+ + strlen (name) + 1);
+
+ sprintf (concatenated_name, "%s::%s", namespace_name, name);
+ sym = lookup_static_symbol_aux (concatenated_name, VAR_DOMAIN);
+ }
if (sym == NULL)
return NULL;
/* pai: FIXME -- sounds iffy */
if (full)
{
- argp = value_change_enclosing_type (argp, real_type);
+ argp = value_copy (argp);
+ set_value_enclosing_type (argp, real_type);
return argp;
}
/* Calling lookup_block_symbol is necessary to get the LOC_REGISTER
symbol instead of the LOC_ARG one (if both exist). */
- sym = lookup_block_symbol (b, name, NULL, VAR_DOMAIN);
+ sym = lookup_block_symbol (b, name, VAR_DOMAIN);
if (sym == NULL)
{
if (complain)
int element = value_bit_index (array_type,
value_contents (array),
lowbound + i);
+
if (element < 0)
error (_("internal error accessing bitstring"));
else if (element > 0)
{
int j = i % TARGET_CHAR_BIT;
- if (gdbarch_bits_big_endian (current_gdbarch))
+
+ if (gdbarch_bits_big_endian (get_type_arch (array_type)))
j = TARGET_CHAR_BIT - 1 - j;
value_contents_raw (slice)[i / TARGET_CHAR_BIT] |= (1 << j);
}
projects / deliverable / binutils-gdb.git / blobdiff