* *
* C Header File *
* *
- * Copyright (C) 1992-2005 Free Software Foundation, Inc. *
+ * Copyright (C) 1992-2007, Free Software Foundation, Inc. *
* *
* GNAT is free software; you can redistribute it and/or modify it under *
* terms of the GNU General Public License as published by the Free Soft- *
/* Initialize DUMMY_NODE_TABLE. */
extern void init_dummy_type (void);
+/* Given GNAT_ENTITY, an entity in the incoming GNAT tree, return a
+ GCC type corresponding to that entity. GNAT_ENTITY is assumed to
+ refer to an Ada type. */
+extern tree gnat_to_gnu_type (Entity_Id gnat_entity);
+
/* Given GNAT_ENTITY, a GNAT defining identifier node, which denotes some Ada
entity, this routine returns the equivalent GCC tree for that entity
(an ..._DECL node) and associates the ..._DECL node with the input GNAT
DEFINITION is nonzero if this call is intended for a definition. This is
used for separate compilation where it necessary to know whether an
external declaration or a definition should be created if the GCC equivalent
- was not created previously. The value of 1 is normally used for a non-zero
+ was not created previously. The value of 1 is normally used for a nonzero
DEFINITION, but a value of 2 is used in special circumstances, defined in
the code. */
extern tree gnat_to_gnu_entity (Entity_Id gnat_entity, tree gnu_expr,
FIELD_DECL. */
extern tree gnat_to_gnu_field_decl (Entity_Id gnat_entity);
-/* Given GNAT_ENTITY, an entity in the incoming GNAT tree, return a
- GCC type corresponding to that entity. GNAT_ENTITY is assumed to
- refer to an Ada type. */
-extern tree gnat_to_gnu_type (Entity_Id gnat_entity);
+/* Wrap up compilation of T, a TYPE_DECL, possibly deferring it. */
+extern void rest_of_type_decl_compilation (tree t);
+
+/* Start a new statement group chained to the previous group. */
+extern void start_stmt_group (void);
/* Add GNU_STMT to the current BLOCK_STMT node. */
extern void add_stmt (tree gnu_stmt);
/* Similar, but set the location of GNU_STMT to that of GNAT_NODE. */
extern void add_stmt_with_node (tree gnu_stmt, Node_Id gnat_node);
+/* Return code corresponding to the current code group. It is normally
+ a STATEMENT_LIST, but may also be a BIND_EXPR or TRY_FINALLY_EXPR if
+ BLOCK or cleanups were set. */
+extern tree end_stmt_group (void);
+
/* Set the BLOCK node corresponding to the current code group to GNU_BLOCK. */
extern void set_block_for_group (tree);
Get SLOC from GNAT_ENTITY. */
extern void add_decl_expr (tree gnu_decl, Entity_Id gnat_entity);
+/* Finalize any From_With_Type incomplete types. We do this after processing
+ our compilation unit and after processing its spec, if this is a body. */
+extern void finalize_from_with_types (void);
+
+/* Return the equivalent type to be used for GNAT_ENTITY, if it's a
+ kind of type (such E_Task_Type) that has a different type which Gigi
+ uses for its representation. If the type does not have a special type
+ for its representation, return GNAT_ENTITY. If a type is supposed to
+ exist, but does not, abort unless annotating types, in which case
+ return Empty. If GNAT_ENTITY is Empty, return Empty. */
+extern Entity_Id Gigi_Equivalent_Type (Entity_Id);
+
/* Given GNAT_ENTITY, elaborate all expressions that are required to
be elaborated at the point of its definition, but do nothing else. */
extern void elaborate_entity (Entity_Id gnat_entity);
/* Called when we need to protect a variable object using a save_expr. */
extern tree maybe_variable (tree gnu_operand);
-/* Create a record type that contains a field of TYPE with a starting bit
- position so that it is aligned to ALIGN bits and is SIZE bytes long. */
-extern tree make_aligning_type (tree type, int align, tree size);
+/* Create a record type that contains a SIZE bytes long field of TYPE with a
+ starting bit position so that it is aligned to ALIGN bits, and leaving at
+ least ROOM bytes free before the field. BASE_ALIGN is the alignment the
+ record is guaranteed to get. */
+extern tree make_aligning_type (tree type, unsigned int align, tree size,
+ unsigned int base_align, int room);
/* Ensure that TYPE has SIZE and ALIGN. Make and return a new padded type
if needed. We have already verified that SIZE and TYPE are large enough.
the value passed against the list of choices. */
extern tree choices_to_gnu (tree operand, Node_Id choices);
-/* Given a type T, a FIELD_DECL F, and a replacement value R,
- return a new type with all size expressions that contain F
- updated by replacing F with R. This is identical to GCC's
- substitute_in_type except that it knows about TYPE_INDEX_TYPE. */
-extern tree gnat_substitute_in_type (tree t, tree f, tree r);
+/* Given a type T, a FIELD_DECL F, and a replacement value R, return a new
+ type with all size expressions that contain F updated by replacing F
+ with R. If F is NULL_TREE, always make a new RECORD_TYPE, even if
+ nothing has changed. */
+extern tree substitute_in_type (tree t, tree f, tree r);
/* Return the "RM size" of GNU_TYPE. This is the actual number of bits
needed to represent the object. */
/* Current file name without path */
extern const char *ref_filename;
+/* This structure must be kept synchronized with Call_Back_End. */
+struct File_Info_Type
+{
+ File_Name_Type File_Name;
+ Nat Num_Source_Lines;
+};
+
/* This is the main program of the back-end. It sets up all the table
structures and then generates code.
struct String_Entry *strings_ptr,
Char_Code *strings_chars_ptr,
struct List_Header *list_headers_ptr,
- Int number_units ATTRIBUTE_UNUSED,
- char *file_info_ptr ATTRIBUTE_UNUSED,
+ Nat number_file,
+ struct File_Info_Type *file_info_ptr ATTRIBUTE_UNUSED,
Entity_Id standard_integer,
Entity_Id standard_long_long_float,
Entity_Id standard_exception_type,
make a GCC type for GNAT_ENTITY and set up the correspondence. */
extern void process_type (Entity_Id gnat_entity);
-/* Convert Sloc into *LOCUS (a location_t). Return true if this Sloc
- corresponds to a source code location and false if it doesn't. In the
- latter case, we don't update *LOCUS. We also set the Gigi global variable
- REF_FILENAME to the reference file name as given by sinput (i.e no
- directory). */
+/* Convert SLOC into LOCUS. Return true if SLOC corresponds to a source code
+ location and false if it doesn't. In the former case, set the Gigi global
+ variable REF_FILENAME to the simple debug file name as given by sinput. */
extern bool Sloc_to_locus (Source_Ptr Sloc, location_t *locus);
/* Post an error message. MSG is the error message, properly annotated.
binary and unary operations. */
extern void init_code_table (void);
+/* Return a label to branch to for the exception type in KIND or NULL_TREE
+ if none. */
+extern tree get_exception_label (char);
+
/* Current node being treated, in case gigi_abort or Check_Elaboration_Code
called. */
extern Node_Id error_gnat_node;
-/* This is equivalent to stabilize_reference in GCC's tree.c, but we know
- how to handle our new nodes and we take an extra argument that says
- whether to force evaluation of everything. */
-extern tree gnat_stabilize_reference (tree ref, bool force);
+/* This is equivalent to stabilize_reference in tree.c, but we know how to
+ handle our own nodes and we take extra arguments. FORCE says whether to
+ force evaluation of everything. We set SUCCESS to true unless we walk
+ through something we don't know how to stabilize. */
+extern tree maybe_stabilize_reference (tree ref, bool force, bool *success);
/* Highest number in the front-end node table. */
extern int max_gnat_nodes;
type whose bit width is Pmode. Assume "long" is such a type here. */
#undef SIZE_TYPE
#define SIZE_TYPE "long int"
-
\f
/* Data structures used to represent attributes. */
-enum attr_type {ATTR_MACHINE_ATTRIBUTE, ATTR_LINK_ALIAS,
- ATTR_LINK_SECTION, ATTR_WEAK_EXTERNAL};
+enum attr_type
+{
+ ATTR_MACHINE_ATTRIBUTE,
+ ATTR_LINK_ALIAS,
+ ATTR_LINK_SECTION,
+ ATTR_LINK_CONSTRUCTOR,
+ ATTR_LINK_DESTRUCTOR,
+ ATTR_WEAK_EXTERNAL
+};
struct attrib
{
Node_Id error_point;
};
+/* Table of machine-independent internal attributes. */
+extern const struct attribute_spec gnat_internal_attribute_table[];
+
/* Define the entries in the standard data array. */
enum standard_datatypes
{
/* Routines expected by the gcc back-end. They must have exactly the same
prototype and names as below. */
-/* Returns non-zero if we are currently in the global binding level */
+/* Returns nonzero if we are currently in the global binding level. */
extern int global_bindings_p (void);
/* Enter and exit a new binding level. */
an unsigned type; otherwise a signed type is returned. */
extern tree gnat_type_for_mode (enum machine_mode mode, int unsignedp);
+/* Emit debug info for all global variable declarations. */
+extern void gnat_write_global_declarations (void);
+
/* Return the unsigned version of a TYPE_NODE, a scalar type. */
extern tree gnat_unsigned_type (tree type_node);
/* Return the signed version of a TYPE_NODE, a scalar type. */
extern tree gnat_signed_type (tree type_node);
-/* Return a type the same as TYPE except unsigned or signed according to
- UNSIGNEDP. */
-extern tree gnat_signed_or_unsigned_type (int unsignedp, tree type);
-
/* Create an expression whose value is that of EXPR,
converted to type TYPE. The TREE_TYPE of the value
is always TYPE. This function implements all reasonable
/* Initialize tables for above routines. */
extern void init_gnat_to_gnu (void);
-/* Given a record type (RECORD_TYPE) and a chain of FIELD_DECL
- nodes (FIELDLIST), finish constructing the record or union type.
- If HAS_REP is true, this record has a rep clause; don't call
- layout_type but merely set the size and alignment ourselves.
- If DEFER_DEBUG is true, do not call the debugging routines
- on this type; it will be done later. */
+/* Given a record type RECORD_TYPE and a chain of FIELD_DECL nodes FIELDLIST,
+ finish constructing the record or union type. If REP_LEVEL is zero, this
+ record has no representation clause and so will be entirely laid out here.
+ If REP_LEVEL is one, this record has a representation clause and has been
+ laid out already; only set the sizes and alignment. If REP_LEVEL is two,
+ this record is derived from a parent record and thus inherits its layout;
+ only make a pass on the fields to finalize them. If DO_NOT_FINALIZE is
+ true, the record type is expected to be modified afterwards so it will
+ not be sent to the back-end for finalization. */
extern void finish_record_type (tree record_type, tree fieldlist,
- bool has_rep, bool defer_debug);
+ int rep_level, bool do_not_finalize);
-/* Output the debug information associated to a record type. */
-extern void write_record_type_debug_info (tree);
+/* Wrap up compilation of RECORD_TYPE, i.e. most notably output all
+ the debug information associated with it. It need not be invoked
+ directly in most cases since finish_record_type takes care of doing
+ so, unless explicitly requested not to through DO_NOT_FINALIZE. */
+extern void rest_of_record_type_compilation (tree record_type);
/* Returns a FUNCTION_TYPE node. RETURN_TYPE is the type returned by the
subprogram. If it is void_type_node, then we are dealing with a procedure,
extern tree copy_type (tree type);
/* Return an INTEGER_TYPE of SIZETYPE with range MIN to MAX and whose
- TYPE_INDEX_TYPE is INDEX. */
-extern tree create_index_type (tree min, tree max, tree index);
+ TYPE_INDEX_TYPE is INDEX. GNAT_NODE is used for the position of
+ the decl. */
+extern tree create_index_type (tree min, tree max, tree index,
+ Node_Id gnat_node);
/* Return a TYPE_DECL node. TYPE_NAME gives the name of the type (a character
string) and TYPE is a ..._TYPE node giving its data type.
bool artificial_p, bool debug_info_p,
Node_Id gnat_node);
-/* Returns a GCC VAR_DECL node. VAR_NAME gives the name of the variable.
- ASM_NAME is its assembler name (if provided). TYPE is
- its data type (a GCC ..._TYPE node). VAR_INIT is the GCC tree for an
- optional initial expression; NULL_TREE if none.
+/* Returns a GCC VAR_DECL or CONST_DECL node.
+
+ VAR_NAME gives the name of the variable. ASM_NAME is its assembler name
+ (if provided). TYPE is its data type (a GCC ..._TYPE node). VAR_INIT is
+ the GCC tree for an optional initial expression; NULL_TREE if none.
CONST_FLAG is true if this variable is constant.
bool static_flag,
struct attrib *attr_list, Node_Id gnat_node);
+/* Similar to create_var_decl, forcing the creation of a VAR_DECL node. */
+extern tree create_true_var_decl (tree var_name, tree asm_name, tree type,
+ tree var_init, bool const_flag,
+ bool public_flag, bool extern_flag,
+ bool static_flag,
+ struct attrib *attr_list, Node_Id gnat_node);
+
/* Given a DECL and ATTR_LIST, apply the listed attributes. */
extern void process_attributes (tree decl, struct attrib *attr_list);
+/* Record a global renaming pointer. */
+void record_global_renaming_pointer (tree);
+
+/* Invalidate the global renaming pointers. */
+void invalidate_global_renaming_pointers (void);
+
/* Returns a FIELD_DECL node. FIELD_NAME the field name, FIELD_TYPE is its
type, and RECORD_TYPE is the type of the parent. PACKED is nonzero if
this field is in a record type with a "pragma pack". If SIZE is nonzero
a constructor is made for the type. GNAT_ENTITY is a gnat node used
to print out an error message if the mechanism cannot be applied to
an object of that type and also for the name. */
-
extern tree build_vms_descriptor (tree type, Mechanism_Type mech,
Entity_Id gnat_entity);
+/* Build a stub for the subprogram specified by the GCC tree GNU_SUBPROG
+ and the GNAT node GNAT_SUBPROG. */
+extern void build_function_stub (tree gnu_subprog, Entity_Id gnat_subprog);
+
/* Build a type to be used to represent an aliased object whose nominal
type is an unconstrained array. This consists of a RECORD_TYPE containing
a field of TEMPLATE_TYPE and a field of OBJECT_TYPE, which is an
extern tree build_unc_object_type (tree template_type, tree object_type,
tree name);
+/* Same as build_unc_object_type, but taking a thin or fat pointer type
+ instead of the template type. */
+extern tree build_unc_object_type_from_ptr (tree thin_fat_ptr_type,
+ tree object_type, tree name);
+
+/* Shift the component offsets within an unconstrained object TYPE to make it
+ suitable for use as a designated type for thin pointers. */
+extern void shift_unc_components_for_thin_pointers (tree type);
+
/* Update anything previously pointing to OLD_TYPE to point to NEW_TYPE. In
the normal case this is just two adjustments, but we have more to do
if NEW is an UNCONSTRAINED_ARRAY_TYPE. */
If NOTRUNC_P is true, truncation operations should be suppressed. */
extern tree unchecked_convert (tree type, tree expr, bool notrunc_p);
+/* Return the appropriate GCC tree code for the specified GNAT type,
+ the latter being a record type as predicated by Is_Record_Type. */
+extern enum tree_code tree_code_for_record_type (Entity_Id);
+
+/* Return true if GNU_TYPE is suitable as the type of a non-aliased
+ component of an aggregate type. */
+extern bool type_for_nonaliased_component_p (tree);
+
/* Prepare expr to be an argument of a TRUTH_NOT_EXPR or other logical
operation.
/* Return the base type of TYPE. */
extern tree get_base_type (tree type);
-/* Likewise, but only return types known at Ada source. */
-extern tree get_ada_base_type (tree type);
-
/* EXP is a GCC tree representing an address. See if we can find how
strictly the object at that address is aligned. Return that alignment
strictly the object at that address is aligned. Return that alignment
in bits. If we don't know anything about the alignment, return 0. */
extern unsigned int known_alignment (tree exp);
+/* Return true if VALUE is a multiple of FACTOR. FACTOR must be a power
+ of 2. */
+extern bool value_factor_p (tree value, HOST_WIDE_INT factor);
+
/* Make a binary operation of kind OP_CODE. RESULT_TYPE is the type
desired for the result. Usually the operation is to be performed
in that type. For MODIFY_EXPR and ARRAY_REF, RESULT_TYPE may be 0
extern tree build_cond_expr (tree result_type, tree condition_operand,
tree true_operand, tree false_operand);
+/* Similar, but for RETURN_EXPR. */
+extern tree build_return_expr (tree result_decl, tree ret_val);
+
/* Build a CALL_EXPR to call FUNDECL with one argument, ARG. Return
the CALL_EXPR. */
extern tree build_call_1_expr (tree fundecl, tree arg);
extern tree build_call_0_expr (tree fundecl);
/* Call a function that raises an exception and pass the line number and file
- name, if requested. MSG says which exception function to call. */
-extern tree build_call_raise (int msg);
+ name, if requested. MSG says which exception function to call.
+
+ GNAT_NODE is the gnat node conveying the source location for which the
+ error should be signaled, or Empty in which case the error is signaled on
+ the current ref_file_name/input_line.
+
+ KIND says which kind of exception this is for
+ (N_Raise_{Constraint,Storage,Program}_Error). */
+extern tree build_call_raise (int msg, Node_Id gnat_node, char kind);
/* Return a CONSTRUCTOR of TYPE whose list is LIST. This is not the
same as build_constructor in the language-independent tree.c. */
extern bool gnat_mark_addressable (tree expr_node);
/* Implementation of the builtin_function langhook. */
-extern tree builtin_function (const char *name, tree type, int function_code,
- enum built_in_class class,
- const char *library_name, tree attrs);
+extern tree gnat_builtin_function (tree decl);
/* Search the chain of currently reachable declarations for a builtin
FUNCTION_DECL node corresponding to function NAME (an IDENTIFIER_NODE).
extern Pos get_target_long_double_size (void);
extern Pos get_target_pointer_size (void);
extern Pos get_target_maximum_alignment (void);
+extern Pos get_target_default_allocator_alignment (void);
+extern Pos get_target_maximum_default_alignment (void);
+extern Pos get_target_maximum_allowed_alignment (void);
extern Nat get_float_words_be (void);
extern Nat get_words_be (void);
extern Nat get_bytes_be (void);
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