*** empty log message ***
[deliverable/binutils-gdb.git] / gdb / gdbtypes.c
index bb9fe3fc6cbcb58762455edb67443940dc134ea8..f21555845142c27eda6220d43cad2714e220834d 100644 (file)
@@ -1,6 +1,8 @@
 /* Support routines for manipulating internal types for GDB.
-   Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003,
-   2004 Free Software Foundation, Inc.
+
+   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002,
+   2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+
    Contributed by Cygnus Support, using pieces from other GDB modules.
 
    This file is part of GDB.
@@ -17,8 +19,8 @@
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
 
 #include "defs.h"
 #include "gdb_string.h"
@@ -37,6 +39,7 @@
 #include "wrapper.h"
 #include "cp-abi.h"
 #include "gdb_assert.h"
+#include "hashtab.h"
 
 /* These variables point to the objects
    representing the predefined C data types.  */
@@ -94,37 +97,80 @@ struct type *builtin_type_v8hi;
 struct type *builtin_type_v4hi;
 struct type *builtin_type_v2si;
 struct type *builtin_type_vec64;
-struct type *builtin_type_vec64i;
 struct type *builtin_type_vec128;
-struct type *builtin_type_vec128i;
-struct type *builtin_type_ieee_single[BFD_ENDIAN_UNKNOWN];
-struct type *builtin_type_ieee_single_big;
-struct type *builtin_type_ieee_single_little;
-struct type *builtin_type_ieee_double[BFD_ENDIAN_UNKNOWN];
-struct type *builtin_type_ieee_double_big;
-struct type *builtin_type_ieee_double_little;
-struct type *builtin_type_ieee_double_littlebyte_bigword;
+
+/* Floatformat pairs.  */
+const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = {
+  &floatformat_ieee_single_big,
+  &floatformat_ieee_single_little
+};
+const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = {
+  &floatformat_ieee_double_big,
+  &floatformat_ieee_double_little
+};
+const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = {
+  &floatformat_ieee_double_big,
+  &floatformat_ieee_double_littlebyte_bigword
+};
+const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = {
+  &floatformat_i387_ext,
+  &floatformat_i387_ext
+};
+const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = {
+  &floatformat_m68881_ext,
+  &floatformat_m68881_ext
+};
+const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = {
+  &floatformat_arm_ext_big,
+  &floatformat_arm_ext_littlebyte_bigword
+};
+const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = {
+  &floatformat_ia64_spill_big,
+  &floatformat_ia64_spill_little
+};
+const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = {
+  &floatformat_ia64_quad_big,
+  &floatformat_ia64_quad_little
+};
+const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = {
+  &floatformat_vax_f,
+  &floatformat_vax_f
+};
+const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = {
+  &floatformat_vax_d,
+  &floatformat_vax_d
+};
+
+struct type *builtin_type_ieee_single;
+struct type *builtin_type_ieee_double;
 struct type *builtin_type_i387_ext;
 struct type *builtin_type_m68881_ext;
-struct type *builtin_type_i960_ext;
-struct type *builtin_type_m88110_ext;
-struct type *builtin_type_m88110_harris_ext;
-struct type *builtin_type_arm_ext[BFD_ENDIAN_UNKNOWN];
-struct type *builtin_type_arm_ext_big;
-struct type *builtin_type_arm_ext_littlebyte_bigword;
-struct type *builtin_type_ia64_spill[BFD_ENDIAN_UNKNOWN];
-struct type *builtin_type_ia64_spill_big;
-struct type *builtin_type_ia64_spill_little;
-struct type *builtin_type_ia64_quad[BFD_ENDIAN_UNKNOWN];
-struct type *builtin_type_ia64_quad_big;
-struct type *builtin_type_ia64_quad_little;
+struct type *builtin_type_arm_ext;
+struct type *builtin_type_ia64_spill;
+struct type *builtin_type_ia64_quad;
+
 struct type *builtin_type_void_data_ptr;
 struct type *builtin_type_void_func_ptr;
 struct type *builtin_type_CORE_ADDR;
 struct type *builtin_type_bfd_vma;
 
 int opaque_type_resolution = 1;
+static void
+show_opaque_type_resolution (struct ui_file *file, int from_tty,
+                            struct cmd_list_element *c, const char *value)
+{
+  fprintf_filtered (file, _("\
+Resolution of opaque struct/class/union types (if set before loading symbols) is %s.\n"),
+                   value);
+}
+
 int overload_debug = 0;
+static void
+show_overload_debug (struct ui_file *file, int from_tty,
+                    struct cmd_list_element *c, const char *value)
+{
+  fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"), value);
+}
 
 struct extra
   {
@@ -590,7 +636,7 @@ replace_type (struct type *ntype, struct type *type)
        call replace_type().  */
     gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0);
 
-    TYPE_LENGTH (ntype) = TYPE_LENGTH (type);
+    TYPE_LENGTH (chain) = TYPE_LENGTH (type);
     chain = TYPE_CHAIN (chain);
   } while (ntype != chain);
 
@@ -605,15 +651,30 @@ replace_type (struct type *ntype, struct type *type)
    of the aggregate that the member belongs to.  */
 
 struct type *
-lookup_member_type (struct type *type, struct type *domain)
+lookup_memberptr_type (struct type *type, struct type *domain)
 {
   struct type *mtype;
 
   mtype = alloc_type (TYPE_OBJFILE (type));
-  smash_to_member_type (mtype, domain, type);
+  smash_to_memberptr_type (mtype, domain, type);
   return (mtype);
 }
 
+/* Return a pointer-to-method type, for a method of type TO_TYPE.  */
+
+struct type *
+lookup_methodptr_type (struct type *to_type)
+{
+  struct type *mtype;
+
+  mtype = alloc_type (TYPE_OBJFILE (to_type));
+  TYPE_TARGET_TYPE (mtype) = to_type;
+  TYPE_DOMAIN_TYPE (mtype) = TYPE_DOMAIN_TYPE (to_type);
+  TYPE_LENGTH (mtype) = cplus_method_ptr_size ();
+  TYPE_CODE (mtype) = TYPE_CODE_METHODPTR;
+  return mtype;
+}
+
 /* Allocate a stub method whose return type is TYPE.  
    This apparently happens for speed of symbol reading, since parsing
    out the arguments to the method is cpu-intensive, the way we are doing
@@ -671,7 +732,7 @@ create_range_type (struct type *result_type, struct type *index_type,
 }
 
 /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type TYPE.
-   Return 1 of type is a range type, 0 if it is discrete (and bounds
+   Return 1 if type is a range type, 0 if it is discrete (and bounds
    will fit in LONGEST), or -1 otherwise. */
 
 int
@@ -834,6 +895,39 @@ create_set_type (struct type *result_type, struct type *domain_type)
   return (result_type);
 }
 
+void
+append_flags_type_flag (struct type *type, int bitpos, char *name)
+{
+  gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS);
+  gdb_assert (bitpos < TYPE_NFIELDS (type));
+  gdb_assert (bitpos >= 0);
+
+  if (name)
+    {
+      TYPE_FIELD_NAME (type, bitpos) = xstrdup (name);
+      TYPE_FIELD_BITPOS (type, bitpos) = bitpos;
+    }
+  else
+    {
+      /* Don't show this field to the user.  */
+      TYPE_FIELD_BITPOS (type, bitpos) = -1;
+    }
+}
+
+struct type *
+init_flags_type (char *name, int length)
+{
+  int nfields = length * TARGET_CHAR_BIT;
+  struct type *type;
+
+  type = init_type (TYPE_CODE_FLAGS, length, TYPE_FLAG_UNSIGNED, name, NULL);
+  TYPE_NFIELDS (type) = nfields;
+  TYPE_FIELDS (type) = TYPE_ALLOC (type, nfields * sizeof (struct field));
+  memset (TYPE_FIELDS (type), 0, nfields * sizeof (struct field));
+
+  return type;
+}
+
 /* Construct and return a type of the form:
        struct NAME { ELT_TYPE ELT_NAME[N]; }
    We use these types for SIMD registers.  For example, the type of
@@ -902,34 +996,6 @@ build_builtin_type_vec64 (void)
   return t;
 }
 
-static struct type *
-build_builtin_type_vec64i (void)
-{
-  /* Construct a type for the 64 bit registers.  The type we're
-     building is this: */
-#if 0
-  union __gdb_builtin_type_vec64i 
-  {
-    int64_t uint64;
-    int32_t v2_int32[2];
-    int16_t v4_int16[4];
-    int8_t v8_int8[8];
-  };
-#endif
-
-  struct type *t;
-
-  t = init_composite_type ("__gdb_builtin_type_vec64i", TYPE_CODE_UNION);
-  append_composite_type_field (t, "uint64", builtin_type_int64);
-  append_composite_type_field (t, "v2_int32", builtin_type_v2_int32);
-  append_composite_type_field (t, "v4_int16", builtin_type_v4_int16);
-  append_composite_type_field (t, "v8_int8", builtin_type_v8_int8);
-
-  TYPE_FLAGS (t) |= TYPE_FLAG_VECTOR;
-  TYPE_NAME (t) = "builtin_type_vec64i";
-  return t;
-}
-
 static struct type *
 build_builtin_type_vec128 (void)
 {
@@ -960,39 +1026,20 @@ build_builtin_type_vec128 (void)
   return t;
 }
 
-static struct type *
-build_builtin_type_vec128i (void)
-{
-  /* 128-bit Intel SIMD registers */
-  struct type *t;
-
-  t = init_composite_type ("__gdb_builtin_type_vec128i", TYPE_CODE_UNION);
-  append_composite_type_field (t, "v4_float", builtin_type_v4_float);
-  append_composite_type_field (t, "v2_double", builtin_type_v2_double);
-  append_composite_type_field (t, "v16_int8", builtin_type_v16_int8);
-  append_composite_type_field (t, "v8_int16", builtin_type_v8_int16);
-  append_composite_type_field (t, "v4_int32", builtin_type_v4_int32);
-  append_composite_type_field (t, "v2_int64", builtin_type_v2_int64);
-  append_composite_type_field (t, "uint128", builtin_type_int128);
-
-  TYPE_FLAGS (t) |= TYPE_FLAG_VECTOR;
-  TYPE_NAME (t) = "builtin_type_vec128i";
-  return t;
-}
-
-/* Smash TYPE to be a type of members of DOMAIN with type TO_TYPE. 
-   A MEMBER is a wierd thing -- it amounts to a typed offset into
-   a struct, e.g. "an int at offset 8".  A MEMBER TYPE doesn't
-   include the offset (that's the value of the MEMBER itself), but does
-   include the structure type into which it points (for some reason).
+/* Smash TYPE to be a type of pointers to members of DOMAIN with type
+   TO_TYPE.  A member pointer is a wierd thing -- it amounts to a
+   typed offset into a struct, e.g. "an int at offset 8".  A MEMBER
+   TYPE doesn't include the offset (that's the value of the MEMBER
+   itself), but does include the structure type into which it points
+   (for some reason).
 
    When "smashing" the type, we preserve the objfile that the
    old type pointed to, since we aren't changing where the type is actually
    allocated.  */
 
 void
-smash_to_member_type (struct type *type, struct type *domain,
-                     struct type *to_type)
+smash_to_memberptr_type (struct type *type, struct type *domain,
+                        struct type *to_type)
 {
   struct objfile *objfile;
 
@@ -1002,8 +1049,10 @@ smash_to_member_type (struct type *type, struct type *domain,
   TYPE_OBJFILE (type) = objfile;
   TYPE_TARGET_TYPE (type) = to_type;
   TYPE_DOMAIN_TYPE (type) = domain;
-  TYPE_LENGTH (type) = 1;      /* In practice, this is never needed.  */
-  TYPE_CODE (type) = TYPE_CODE_MEMBER;
+  /* Assume that a data member pointer is the same size as a normal
+     pointer.  */
+  TYPE_LENGTH (type) = TARGET_PTR_BIT / TARGET_CHAR_BIT;
+  TYPE_CODE (type) = TYPE_CODE_MEMBERPTR;
 }
 
 /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE.
@@ -1270,7 +1319,7 @@ lookup_struct_elt_type (struct type *type, char *name, int noerr)
     {
       struct type *t;
 
-      t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, noerr);
+      t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 1);
       if (t != NULL)
        {
          return t;
@@ -1465,7 +1514,15 @@ check_typedef (struct type *type)
        }
       sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0, (struct symtab **) NULL);
       if (sym)
-       make_cv_type (is_const, is_volatile, SYMBOL_TYPE (sym), &type);
+        {
+          /* Same as above for opaque types, we can replace the stub
+             with the complete type only if they are int the same
+             objfile.  */
+         if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type))
+            make_cv_type (is_const, is_volatile, SYMBOL_TYPE (sym), &type);
+         else
+           type = SYMBOL_TYPE (sym);
+        }
     }
 
   if (TYPE_TARGET_STUB (type))
@@ -1857,6 +1914,7 @@ is_integral_type (struct type *t)
     ((t != NULL)
      && ((TYPE_CODE (t) == TYPE_CODE_INT)
         || (TYPE_CODE (t) == TYPE_CODE_ENUM)
+        || (TYPE_CODE (t) == TYPE_CODE_FLAGS)
         || (TYPE_CODE (t) == TYPE_CODE_CHAR)
         || (TYPE_CODE (t) == TYPE_CODE_RANGE)
         || (TYPE_CODE (t) == TYPE_CODE_BOOL)));
@@ -2409,6 +2467,7 @@ rank_one_type (struct type *parm, struct type *arg)
          return rank_one_type (TYPE_TARGET_TYPE (parm), arg);
        case TYPE_CODE_INT:
        case TYPE_CODE_ENUM:
+       case TYPE_CODE_FLAGS:
        case TYPE_CODE_CHAR:
        case TYPE_CODE_RANGE:
        case TYPE_CODE_BOOL:
@@ -2489,6 +2548,7 @@ rank_one_type (struct type *parm, struct type *arg)
          else
            return INTEGER_CONVERSION_BADNESS;
        case TYPE_CODE_ENUM:
+       case TYPE_CODE_FLAGS:
        case TYPE_CODE_CHAR:
        case TYPE_CODE_RANGE:
        case TYPE_CODE_BOOL:
@@ -2639,7 +2699,7 @@ rank_one_type (struct type *parm, struct type *arg)
          return INCOMPATIBLE_TYPE_BADNESS;
        }
       break;
-    case TYPE_CODE_MEMBER:
+    case TYPE_CODE_MEMBERPTR:
       switch (TYPE_CODE (arg))
        {
        default:
@@ -2923,6 +2983,9 @@ recursive_dump_type (struct type *type, int spaces)
     case TYPE_CODE_ENUM:
       printf_filtered ("(TYPE_CODE_ENUM)");
       break;
+    case TYPE_CODE_FLAGS:
+      printf_filtered ("(TYPE_CODE_FLAGS)");
+      break;
     case TYPE_CODE_FUNC:
       printf_filtered ("(TYPE_CODE_FUNC)");
       break;
@@ -2950,8 +3013,11 @@ recursive_dump_type (struct type *type, int spaces)
     case TYPE_CODE_ERROR:
       printf_filtered ("(TYPE_CODE_ERROR)");
       break;
-    case TYPE_CODE_MEMBER:
-      printf_filtered ("(TYPE_CODE_MEMBER)");
+    case TYPE_CODE_MEMBERPTR:
+      printf_filtered ("(TYPE_CODE_MEMBERPTR)");
+      break;
+    case TYPE_CODE_METHODPTR:
+      printf_filtered ("(TYPE_CODE_METHODPTR)");
       break;
     case TYPE_CODE_METHOD:
       printf_filtered ("(TYPE_CODE_METHOD)");
@@ -3120,11 +3186,26 @@ recursive_dump_type (struct type *type, int spaces)
 
     case TYPE_CODE_FLT:
       printfi_filtered (spaces, "floatformat ");
-      if (TYPE_FLOATFORMAT (type) == NULL
-         || TYPE_FLOATFORMAT (type)->name == NULL)
+      if (TYPE_FLOATFORMAT (type) == NULL)
        puts_filtered ("(null)");
       else
-       puts_filtered (TYPE_FLOATFORMAT (type)->name);
+       {
+         puts_filtered ("{ ");
+         if (TYPE_FLOATFORMAT (type)[0] == NULL
+             || TYPE_FLOATFORMAT (type)[0]->name == NULL)
+           puts_filtered ("(null)");
+         else
+           puts_filtered (TYPE_FLOATFORMAT (type)[0]->name);
+
+         puts_filtered (", ");
+         if (TYPE_FLOATFORMAT (type)[1] == NULL
+             || TYPE_FLOATFORMAT (type)[1]->name == NULL)
+           puts_filtered ("(null)");
+         else
+           puts_filtered (TYPE_FLOATFORMAT (type)[1]->name);
+
+         puts_filtered (" }");
+       }
       puts_filtered ("\n");
       break;
 
@@ -3146,7 +3227,165 @@ recursive_dump_type (struct type *type, int spaces)
     obstack_free (&dont_print_type_obstack, NULL);
 }
 
-static void build_gdbtypes (void);
+/* Trivial helpers for the libiberty hash table, for mapping one
+   type to another.  */
+
+struct type_pair
+{
+  struct type *old, *new;
+};
+
+static hashval_t
+type_pair_hash (const void *item)
+{
+  const struct type_pair *pair = item;
+  return htab_hash_pointer (pair->old);
+}
+
+static int
+type_pair_eq (const void *item_lhs, const void *item_rhs)
+{
+  const struct type_pair *lhs = item_lhs, *rhs = item_rhs;
+  return lhs->old == rhs->old;
+}
+
+/* Allocate the hash table used by copy_type_recursive to walk
+   types without duplicates.  We use OBJFILE's obstack, because
+   OBJFILE is about to be deleted.  */
+
+htab_t
+create_copied_types_hash (struct objfile *objfile)
+{
+  return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq,
+                              NULL, &objfile->objfile_obstack,
+                              hashtab_obstack_allocate,
+                              dummy_obstack_deallocate);
+}
+
+/* Recursively copy (deep copy) TYPE, if it is associated with OBJFILE.
+   Return a new type allocated using malloc, a saved type if we have already
+   visited TYPE (using COPIED_TYPES), or TYPE if it is not associated with
+   OBJFILE.  */
+
+struct type *
+copy_type_recursive (struct objfile *objfile, struct type *type,
+                    htab_t copied_types)
+{
+  struct type_pair *stored, pair;
+  void **slot;
+  struct type *new_type;
+
+  if (TYPE_OBJFILE (type) == NULL)
+    return type;
+
+  /* This type shouldn't be pointing to any types in other objfiles; if
+     it did, the type might disappear unexpectedly.  */
+  gdb_assert (TYPE_OBJFILE (type) == objfile);
+
+  pair.old = type;
+  slot = htab_find_slot (copied_types, &pair, INSERT);
+  if (*slot != NULL)
+    return ((struct type_pair *) *slot)->new;
+
+  new_type = alloc_type (NULL);
+
+  /* We must add the new type to the hash table immediately, in case
+     we encounter this type again during a recursive call below.  */
+  stored = xmalloc (sizeof (struct type_pair));
+  stored->old = type;
+  stored->new = new_type;
+  *slot = stored;
+
+  /* Copy the common fields of types.  */
+  TYPE_CODE (new_type) = TYPE_CODE (type);
+  TYPE_ARRAY_UPPER_BOUND_TYPE (new_type) = TYPE_ARRAY_UPPER_BOUND_TYPE (type);
+  TYPE_ARRAY_LOWER_BOUND_TYPE (new_type) = TYPE_ARRAY_LOWER_BOUND_TYPE (type);
+  if (TYPE_NAME (type))
+    TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type));
+  if (TYPE_TAG_NAME (type))
+    TYPE_TAG_NAME (new_type) = xstrdup (TYPE_TAG_NAME (type));
+  TYPE_FLAGS (new_type) = TYPE_FLAGS (type);
+  TYPE_VPTR_FIELDNO (new_type) = TYPE_VPTR_FIELDNO (type);
+
+  TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type);
+  TYPE_LENGTH (new_type) = TYPE_LENGTH (type);
+
+  /* Copy the fields.  */
+  TYPE_NFIELDS (new_type) = TYPE_NFIELDS (type);
+  if (TYPE_NFIELDS (type))
+    {
+      int i, nfields;
+
+      nfields = TYPE_NFIELDS (type);
+      TYPE_FIELDS (new_type) = xmalloc (sizeof (struct field) * nfields);
+      for (i = 0; i < nfields; i++)
+       {
+         TYPE_FIELD_ARTIFICIAL (new_type, i) = TYPE_FIELD_ARTIFICIAL (type, i);
+         TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i);
+         if (TYPE_FIELD_TYPE (type, i))
+           TYPE_FIELD_TYPE (new_type, i)
+             = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i),
+                                    copied_types);
+         if (TYPE_FIELD_NAME (type, i))
+           TYPE_FIELD_NAME (new_type, i) = xstrdup (TYPE_FIELD_NAME (type, i));
+         if (TYPE_FIELD_STATIC_HAS_ADDR (type, i))
+           SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i),
+                               TYPE_FIELD_STATIC_PHYSADDR (type, i));
+         else if (TYPE_FIELD_STATIC (type, i))
+           SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i),
+                               xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, i)));
+         else
+           {
+             TYPE_FIELD_BITPOS (new_type, i) = TYPE_FIELD_BITPOS (type, i);
+             TYPE_FIELD_STATIC_KIND (new_type, i) = 0;
+           }
+       }
+    }
+
+  /* Copy pointers to other types.  */
+  if (TYPE_TARGET_TYPE (type))
+    TYPE_TARGET_TYPE (new_type) = copy_type_recursive (objfile,
+                                                      TYPE_TARGET_TYPE (type),
+                                                      copied_types);
+  if (TYPE_VPTR_BASETYPE (type))
+    TYPE_VPTR_BASETYPE (new_type) = copy_type_recursive (objfile,
+                                                        TYPE_VPTR_BASETYPE (type),
+                                                        copied_types);
+  /* Maybe copy the type_specific bits.
+
+     NOTE drow/2005-12-09: We do not copy the C++-specific bits like
+     base classes and methods.  There's no fundamental reason why we
+     can't, but at the moment it is not needed.  */
+
+  if (TYPE_CODE (type) == TYPE_CODE_FLT)
+    TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type);
+  else if (TYPE_CODE (type) == TYPE_CODE_STRUCT
+          || TYPE_CODE (type) == TYPE_CODE_UNION
+          || TYPE_CODE (type) == TYPE_CODE_TEMPLATE
+          || TYPE_CODE (type) == TYPE_CODE_NAMESPACE)
+    INIT_CPLUS_SPECIFIC (new_type);
+
+  return new_type;
+}
+
+static struct type *
+build_flt (int bit, char *name, const struct floatformat **floatformats)
+{
+  struct type *t;
+
+  if (bit == -1)
+    {
+      gdb_assert (floatformats != NULL);
+      gdb_assert (floatformats[0] != NULL && floatformats[1] != NULL);
+      bit = floatformats[0]->totalsize;
+    }
+  gdb_assert (bit >= 0);
+
+  t = init_type (TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, 0, name, NULL);
+  TYPE_FLOATFORMAT (t) = floatformats;
+  return t;
+}
+
 static void
 build_gdbtypes (void)
 {
@@ -3203,35 +3442,14 @@ build_gdbtypes (void)
     init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
               TYPE_FLAG_UNSIGNED,
               "unsigned long long", (struct objfile *) NULL);
-  builtin_type_float =
-    init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
-              0,
-              "float", (struct objfile *) NULL);
-/* vinschen@redhat.com 2002-02-08:
-   The below lines are disabled since they are doing the wrong
-   thing for non-multiarch targets.  They are setting the correct
-   type of floats for the target but while on multiarch targets
-   this is done everytime the architecture changes, it's done on
-   non-multiarch targets only on startup, leaving the wrong values
-   in even if the architecture changes (eg. from big-endian to
-   little-endian).  */
-#if 0
-  TYPE_FLOATFORMAT (builtin_type_float) = TARGET_FLOAT_FORMAT;
-#endif
-  builtin_type_double =
-    init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
-              0,
-              "double", (struct objfile *) NULL);
-#if 0
-  TYPE_FLOATFORMAT (builtin_type_double) = TARGET_DOUBLE_FORMAT;
-#endif
-  builtin_type_long_double =
-    init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
-              0,
-              "long double", (struct objfile *) NULL);
-#if 0
-  TYPE_FLOATFORMAT (builtin_type_long_double) = TARGET_LONG_DOUBLE_FORMAT;
-#endif
+
+  builtin_type_float = build_flt (TARGET_FLOAT_BIT, "float",
+                                 TARGET_FLOAT_FORMAT);
+  builtin_type_double = build_flt (TARGET_DOUBLE_BIT, "double",
+                                  TARGET_DOUBLE_FORMAT);
+  builtin_type_long_double = build_flt (TARGET_LONG_DOUBLE_BIT, "long double",
+                                       TARGET_LONG_DOUBLE_FORMAT);
+
   builtin_type_complex =
     init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
               0,
@@ -3257,7 +3475,7 @@ build_gdbtypes (void)
 Set resolution of opaque struct/class/union types (if set before loading symbols)."), _("\
 Show resolution of opaque struct/class/union types (if set before loading symbols)."), NULL,
                           NULL,
-                          NULL, /* FIXME: i18n: */
+                          show_opaque_type_resolution,
                           &setlist, &showlist);
   opaque_type_resolution = 1;
 
@@ -3292,9 +3510,7 @@ Show resolution of opaque struct/class/union types (if set before loading symbol
 
   /* Vector types.  */
   builtin_type_vec64 = build_builtin_type_vec64 ();
-  builtin_type_vec64i = build_builtin_type_vec64i ();
   builtin_type_vec128 = build_builtin_type_vec128 ();
-  builtin_type_vec128i = build_builtin_type_vec128i ();
 
   /* Pointer/Address types. */
 
@@ -3346,21 +3562,6 @@ builtin_type (struct gdbarch *gdbarch)
 }
 
 
-static struct type *
-build_flt (int bit, char *name, const struct floatformat *floatformat)
-{
-  struct type *t;
-  if (bit <= 0 || floatformat == NULL)
-    {
-      gdb_assert (builtin_type_error != NULL);
-      return builtin_type_error;
-    }
-  t = init_type (TYPE_CODE_FLT, bit / TARGET_CHAR_BIT,
-                0, name, (struct objfile *) NULL);
-  TYPE_FLOATFORMAT (t) = floatformat;
-  return t;
-}
-
 static struct type *
 build_complex (int bit, char *name, struct type *target_type)
 {
@@ -3505,6 +3706,9 @@ _initialize_gdbtypes (void)
 {
   struct cmd_list_element *c;
 
+  /* FIXME: Why don't the following types need to be arch-swapped?
+     See the comment at the top of the calls to
+     DEPRECATED_REGISTER_GDBARCH_SWAP below.  */
   builtin_type_int0 =
     init_type (TYPE_CODE_INT, 0 / 8,
               0,
@@ -3556,7 +3760,13 @@ _initialize_gdbtypes (void)
 
   /* FIXME - For the moment, handle types by swapping them in and out.
      Should be using the per-architecture data-pointer and a large
-     struct. */
+     struct. 
+
+     Note that any type T that we might create a 'T *' type for must
+     be arch-swapped: we cache a type's 'T *' type in the pointer_type
+     field, so if we change architectures but don't swap T, then
+     lookup_pointer_type will start handing out pointer types made for
+     a different architecture.  */
   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_void);
   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_char);
   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_short);
@@ -3593,7 +3803,6 @@ _initialize_gdbtypes (void)
   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_v8_int8);
   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_v4_int16);
   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_vec128);
-  DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_vec128i);
   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_void_data_ptr);
   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_void_func_ptr);
   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_CORE_ADDR);
@@ -3601,115 +3810,28 @@ _initialize_gdbtypes (void)
   deprecated_register_gdbarch_swap (NULL, 0, build_gdbtypes);
 
   /* Note: These types do not need to be swapped - they are target
-     neutral.  */
-  builtin_type_ieee_single_big =
-    init_type (TYPE_CODE_FLT, floatformat_ieee_single_big.totalsize / 8,
-              0, "builtin_type_ieee_single_big", NULL);
-  TYPE_FLOATFORMAT (builtin_type_ieee_single_big) = &floatformat_ieee_single_big;
-  builtin_type_ieee_single_little =
-    init_type (TYPE_CODE_FLT, floatformat_ieee_single_little.totalsize / 8,
-              0, "builtin_type_ieee_single_little", NULL);
-  TYPE_FLOATFORMAT (builtin_type_ieee_single_little) = &floatformat_ieee_single_little;
-  builtin_type_ieee_single[BFD_ENDIAN_BIG]
-    = build_flt (floatformat_ieee_single_big.totalsize,
-                "builtin_type_ieee_single_big",
-                &floatformat_ieee_single_big);
-  builtin_type_ieee_single[BFD_ENDIAN_LITTLE]
-    = build_flt (floatformat_ieee_single_little.totalsize,
-                "builtin_type_ieee_single_little",
-                &floatformat_ieee_single_little);
-  builtin_type_ieee_double_big =
-    init_type (TYPE_CODE_FLT, floatformat_ieee_double_big.totalsize / 8,
-              0, "builtin_type_ieee_double_big", NULL);
-  TYPE_FLOATFORMAT (builtin_type_ieee_double_big) = &floatformat_ieee_double_big;
-  builtin_type_ieee_double_little =
-    init_type (TYPE_CODE_FLT, floatformat_ieee_double_little.totalsize / 8,
-              0, "builtin_type_ieee_double_little", NULL);
-  TYPE_FLOATFORMAT (builtin_type_ieee_double_little) = &floatformat_ieee_double_little;
-  builtin_type_ieee_double[BFD_ENDIAN_BIG]
-    = build_flt (floatformat_ieee_double_big.totalsize,
-                "builtin_type_ieee_double_big",
-                &floatformat_ieee_double_big);
-  builtin_type_ieee_double[BFD_ENDIAN_LITTLE]
-    = build_flt (floatformat_ieee_double_little.totalsize,
-                "builtin_type_ieee_double_little",
-                &floatformat_ieee_double_little);
-  builtin_type_ieee_double_littlebyte_bigword =
-    init_type (TYPE_CODE_FLT, floatformat_ieee_double_littlebyte_bigword.totalsize / 8,
-              0, "builtin_type_ieee_double_littlebyte_bigword", NULL);
-  TYPE_FLOATFORMAT (builtin_type_ieee_double_littlebyte_bigword) = &floatformat_ieee_double_littlebyte_bigword;
-  builtin_type_i387_ext =
-    init_type (TYPE_CODE_FLT, floatformat_i387_ext.totalsize / 8,
-              0, "builtin_type_i387_ext", NULL);
-  TYPE_FLOATFORMAT (builtin_type_i387_ext) = &floatformat_i387_ext;
-  builtin_type_m68881_ext =
-    init_type (TYPE_CODE_FLT, floatformat_m68881_ext.totalsize / 8,
-              0, "builtin_type_m68881_ext", NULL);
-  TYPE_FLOATFORMAT (builtin_type_m68881_ext) = &floatformat_m68881_ext;
-  builtin_type_i960_ext =
-    init_type (TYPE_CODE_FLT, floatformat_i960_ext.totalsize / 8,
-              0, "builtin_type_i960_ext", NULL);
-  TYPE_FLOATFORMAT (builtin_type_i960_ext) = &floatformat_i960_ext;
-  builtin_type_m88110_ext =
-    init_type (TYPE_CODE_FLT, floatformat_m88110_ext.totalsize / 8,
-              0, "builtin_type_m88110_ext", NULL);
-  TYPE_FLOATFORMAT (builtin_type_m88110_ext) = &floatformat_m88110_ext;
-  builtin_type_m88110_harris_ext =
-    init_type (TYPE_CODE_FLT, floatformat_m88110_harris_ext.totalsize / 8,
-              0, "builtin_type_m88110_harris_ext", NULL);
-  TYPE_FLOATFORMAT (builtin_type_m88110_harris_ext) = &floatformat_m88110_harris_ext;
-  builtin_type_arm_ext_big =
-    init_type (TYPE_CODE_FLT, floatformat_arm_ext_big.totalsize / 8,
-              0, "builtin_type_arm_ext_big", NULL);
-  TYPE_FLOATFORMAT (builtin_type_arm_ext_big) = &floatformat_arm_ext_big;
-  builtin_type_arm_ext_littlebyte_bigword =
-    init_type (TYPE_CODE_FLT, floatformat_arm_ext_littlebyte_bigword.totalsize / 8,
-              0, "builtin_type_arm_ext_littlebyte_bigword", NULL);
-  TYPE_FLOATFORMAT (builtin_type_arm_ext_littlebyte_bigword) = &floatformat_arm_ext_littlebyte_bigword;
-  builtin_type_arm_ext[BFD_ENDIAN_BIG]
-    = build_flt (floatformat_arm_ext_big.totalsize,
-                "builtin_type_arm_ext_big",
-                &floatformat_arm_ext_big);
-  builtin_type_arm_ext[BFD_ENDIAN_LITTLE]
-    = build_flt (floatformat_arm_ext_littlebyte_bigword.totalsize,
-                "builtin_type_arm_ext_littlebyte_bigword",
-                &floatformat_arm_ext_littlebyte_bigword);
-  builtin_type_ia64_spill_big =
-    init_type (TYPE_CODE_FLT, floatformat_ia64_spill_big.totalsize / 8,
-              0, "builtin_type_ia64_spill_big", NULL);
-  TYPE_FLOATFORMAT (builtin_type_ia64_spill_big) = &floatformat_ia64_spill_big;
-  builtin_type_ia64_spill_little =
-    init_type (TYPE_CODE_FLT, floatformat_ia64_spill_little.totalsize / 8,
-              0, "builtin_type_ia64_spill_little", NULL);
-  TYPE_FLOATFORMAT (builtin_type_ia64_spill_little) = &floatformat_ia64_spill_little;
-  builtin_type_ia64_spill[BFD_ENDIAN_BIG]
-    = build_flt (floatformat_ia64_spill_big.totalsize,
-                "builtin_type_ia64_spill_big",
-                &floatformat_ia64_spill_big);
-  builtin_type_ia64_spill[BFD_ENDIAN_LITTLE]
-    = build_flt (floatformat_ia64_spill_little.totalsize,
-                "builtin_type_ia64_spill_little",
-                &floatformat_ia64_spill_little);
-  builtin_type_ia64_quad_big =
-    init_type (TYPE_CODE_FLT, floatformat_ia64_quad_big.totalsize / 8,
-              0, "builtin_type_ia64_quad_big", NULL);
-  TYPE_FLOATFORMAT (builtin_type_ia64_quad_big) = &floatformat_ia64_quad_big;
-  builtin_type_ia64_quad_little =
-    init_type (TYPE_CODE_FLT, floatformat_ia64_quad_little.totalsize / 8,
-              0, "builtin_type_ia64_quad_little", NULL);
-  TYPE_FLOATFORMAT (builtin_type_ia64_quad_little) = &floatformat_ia64_quad_little;
-  builtin_type_ia64_quad[BFD_ENDIAN_BIG]
-    = build_flt (floatformat_ia64_quad_big.totalsize,
-                "builtin_type_ia64_quad_big",
-                &floatformat_ia64_quad_big);
-  builtin_type_ia64_quad[BFD_ENDIAN_LITTLE]
-    = build_flt (floatformat_ia64_quad_little.totalsize,
-                "builtin_type_ia64_quad_little",
-                &floatformat_ia64_quad_little);
-
-  deprecated_add_show_from_set
-    (add_set_cmd ("overload", no_class, var_zinteger, (char *) &overload_debug,
-                 "Set debugging of C++ overloading.\n\
-When enabled, ranking of the functions is displayed.", &setdebuglist),
-     &showdebuglist);
+     neutral.  FIXME: Are you sure?  See the comment above the calls
+     to DEPRECATED_REGISTER_GDBARCH_SWAP above.  */
+  builtin_type_ieee_single
+    = build_flt (-1, "builtin_type_ieee_single", floatformats_ieee_single);
+  builtin_type_ieee_double
+    = build_flt (-1, "builtin_type_ieee_double", floatformats_ieee_double);
+  builtin_type_i387_ext
+    = build_flt (-1, "builtin_type_i387_ext", floatformats_i387_ext);
+  builtin_type_m68881_ext
+    = build_flt (-1, "builtin_type_m68881_ext", floatformats_m68881_ext);
+  builtin_type_arm_ext
+    = build_flt (-1, "builtin_type_arm_ext", floatformats_arm_ext);
+  builtin_type_ia64_spill
+    = build_flt (-1, "builtin_type_ia64_spill", floatformats_ia64_spill);
+  builtin_type_ia64_quad
+    = build_flt (-1, "builtin_type_ia64_quad", floatformats_ia64_quad);
+
+  add_setshow_zinteger_cmd ("overload", no_class, &overload_debug, _("\
+Set debugging of C++ overloading."), _("\
+Show debugging of C++ overloading."), _("\
+When enabled, ranking of the functions is displayed."),
+                           NULL,
+                           show_overload_debug,
+                           &setdebuglist, &showdebuglist);
 }
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