Restore LDFLAGS in notes.exp

[binutils-gdb.git] / gdb / gdbtypes.h

diff --git a/gdb/gdbtypes.h b/gdb/gdbtypes.h
index e18ae6e54063d9014a2c444e604e3c629f456b48..5f614e573a8345b6ecf0b7b2a11e6fae97ec60bc 100644 (file)
--- a/gdb/gdbtypes.h
+++ b/gdb/gdbtypes.h
@@ -312,6 +312,14 @@ DEF_ENUM_FLAGS_TYPE (enum type_instance_flag_value, type_instance_flags);
 
 #define TYPE_FLAG_ENUM(t) (TYPE_MAIN_TYPE (t)->flag_flag_enum)
 
+/* * True if this type is a discriminated union type.  Only valid for
+   TYPE_CODE_UNION.  A discriminated union stores a reference to the
+   discriminant field along with the discriminator values in a dynamic
+   property.  */
+
+#define TYPE_FLAG_DISCRIMINATED_UNION(t) \
+  (TYPE_MAIN_TYPE (t)->flag_discriminated_union)
+
 /* * Constant type.  If this is set, the corresponding type has a
    const modifier.  */
 
@@ -381,6 +389,39 @@ DEF_ENUM_FLAGS_TYPE (enum type_instance_flag_value, type_instance_flags);
 #define TYPE_ADDRESS_CLASS_ALL(t) (TYPE_INSTANCE_FLAGS(t) \
                                   & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)
 
+/* * Information needed for a discriminated union.  A discriminated
+   union is handled somewhat differently from an ordinary union.
+
+   One field is designated as the discriminant.  Only one other field
+   is active at a time; which one depends on the value of the
+   discriminant and the data in this structure.
+
+   Additionally, it is possible to have a univariant discriminated
+   union.  In this case, the union has just a single field, which is
+   assumed to be the only active variant -- in this case no
+   discriminant is provided.  */
+
+struct discriminant_info
+{
+  /* * The index of the discriminant field.  If -1, then this union
+     must have just a single field.  */
+
+  int discriminant_index;
+
+  /* * The index of the default branch of the union.  If -1, then
+     there is no default branch.  */
+
+  int default_index;
+
+  /* * The discriminant values corresponding to each branch.  This has
+     a number of entries equal to the number of fields in this union.
+     If discriminant_index is not -1, then that entry in this array is
+     not used.  If default_index is not -1, then that entry in this
+     array is not used.  */
+
+  ULONGEST discriminants[1];
+};
+
 enum dynamic_prop_kind
 {
   PROP_UNDEFINED, /* Not defined.  */
@@ -439,6 +480,9 @@ enum dynamic_prop_node_kind
 
   /* A property providing an array's byte stride.  */
   DYN_PROP_BYTE_STRIDE,
+
+  /* A property holding information about a discriminated union.  */
+  DYN_PROP_DISCRIMINATED,
 };
 
 /* * List for dynamic type attributes.  */
@@ -658,6 +702,13 @@ struct main_type
 
   unsigned int flag_flag_enum : 1;
 
+  /* * True if this type is a discriminated union type.  Only valid
+     for TYPE_CODE_UNION.  A discriminated union stores a reference to
+     the discriminant field along with the discriminator values in a
+     dynamic property.  */
+
+  unsigned int flag_discriminated_union : 1;
+
   /* * A discriminant telling us which field of the type_specific
      union is being used for this type, if any.  */
 
@@ -751,6 +802,10 @@ struct main_type
   struct dynamic_prop_list *dyn_prop_list;
 };
 
+/* * Number of bits allocated for alignment.  */
+
+#define TYPE_ALIGN_BITS 8
+
 /* * A ``struct type'' describes a particular instance of a type, with
    some particular qualification.  */
 
@@ -780,6 +835,14 @@ struct type
 
   struct type *chain;
 
+  /* * The alignment for this type.  Zero means that the alignment was
+     not specified in the debug info.  Note that this is stored in a
+     funny way: as the log base 2 (plus 1) of the alignment; so a
+     value of 1 means the alignment is 1, and a value of 9 means the
+     alignment is 256.  */
+
+  unsigned align_log2 : TYPE_ALIGN_BITS;
+
   /* * Flags specific to this instance of the type, indicating where
      on the ring we are.
 
@@ -790,7 +853,7 @@ struct type
      instance flags are completely inherited from the target type.  No
      qualifiers can be cleared by the typedef.  See also
      check_typedef.  */
-  int instance_flags;
+  unsigned instance_flags : 9;
 
   /* * Length of storage for a value of this type.  The value is the
      expression in host bytes of what sizeof(type) would return.  This
@@ -1241,6 +1304,26 @@ extern void allocate_gnat_aux_type (struct type *);
    so you only have to call check_typedef once.  Since allocate_value
    calls check_typedef, TYPE_LENGTH (VALUE_TYPE (X)) is safe.  */
 #define TYPE_LENGTH(thistype) (thistype)->length
+
+/* * Return the alignment of the type in target addressable memory
+   units, or 0 if no alignment was specified.  */
+#define TYPE_RAW_ALIGN(thistype) type_raw_align (thistype)
+
+/* * Return the alignment of the type in target addressable memory
+   units, or 0 if no alignment was specified.  */
+extern unsigned type_raw_align (struct type *);
+
+/* * Return the alignment of the type in target addressable memory
+   units.  Return 0 if the alignment cannot be determined; but note
+   that this makes an effort to compute the alignment even it it was
+   not specified in the debug info.  */
+extern unsigned type_align (struct type *);
+
+/* * Set the alignment of the type.  The alignment must be a power of
+   2.  Returns false if the given value does not fit in the available
+   space in struct type.  */
+extern bool set_type_align (struct type *, ULONGEST);
+
 /* * Note that TYPE_CODE can be TYPE_CODE_TYPEDEF, so if you want the real
    type, you need to do TYPE_CODE (check_type (this_type)).  */
 #define TYPE_CODE(thistype) TYPE_MAIN_TYPE(thistype)->code