/* Language-specific hook definitions for C front end.
Copyright (C) 1991, 1995, 1997, 1998,
- 1999, 2000 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2003, 2004 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GCC; see the file COPYING. If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA. */
#include "config.h"
#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
#include "tree.h"
-#include "function.h"
-#include "input.h"
-#include "toplev.h"
-#include "diagnostic.h"
-#include "output.h"
-#include "flags.h"
-#include "ggc.h"
-#include "rtl.h"
-#include "expr.h"
#include "c-tree.h"
-#include "c-lex.h"
-
-static int c_tree_printer PARAMS ((output_buffer *));
-
-#if USE_CPPLIB
-#include "cpplib.h"
-extern cpp_reader parse_in;
-#endif
-
-/* Each of the functions defined here
- is an alternative to a function in objc-actions.c. */
-
-int
-lang_decode_option (argc, argv)
- int argc;
- char **argv;
-{
- return c_decode_option (argc, argv);
-}
-
-void
-lang_init_options ()
-{
-#if USE_CPPLIB
- cpp_init ();
- cpp_reader_init (&parse_in);
-#endif
- /* Mark as "unspecified". */
- flag_bounds_check = -1;
-}
-
-void
-lang_init ()
-{
- /* If still "unspecified", make it match -fbounded-pointers. */
- if (flag_bounds_check < 0)
- flag_bounds_check = flag_bounded_pointers;
-
- /* If still unspecified, make it match pedantic && -std=c99. */
- if (mesg_implicit_function_declaration < 0)
- {
- if (pedantic && flag_isoc99)
- mesg_implicit_function_declaration = flag_pedantic_errors ? 2 : 1;
- else
- mesg_implicit_function_declaration = 0;
- }
-
- /* the beginning of the file is a new line; check for # */
- /* With luck, we discover the real source file's name from that
- and put it in input_filename. */
-#if !USE_CPPLIB
- ungetc (check_newline (), finput);
-#endif
-
- save_lang_status = &push_c_function_context;
- restore_lang_status = &pop_c_function_context;
- mark_lang_status = &mark_c_function_context;
- lang_expand_expr = &c_expand_expr;
- lang_safe_from_p = &c_safe_from_p;
- lang_printer = &c_tree_printer;
- lang_expand_decl_stmt = &c_expand_decl_stmt;
-
- c_parse_init ();
-}
-
-void
-lang_finish ()
-{
-}
-
-const char *
-lang_identify ()
-{
- return "c";
-}
-
-void
-print_lang_statistics ()
-{
-}
-
-/* used by print-tree.c */
-
-void
-lang_print_xnode (file, node, indent)
- FILE *file ATTRIBUTE_UNUSED;
- tree node ATTRIBUTE_UNUSED;
- int indent ATTRIBUTE_UNUSED;
-{
-}
-
-/* Used by c-lex.c, but only for objc. */
-
-tree
-lookup_interface (arg)
- tree arg ATTRIBUTE_UNUSED;
-{
- return 0;
-}
-
-tree
-is_class_name (arg)
- tree arg ATTRIBUTE_UNUSED;
-{
- return 0;
-}
+#include "c-common.h"
+#include "ggc.h"
+#include "langhooks.h"
+#include "langhooks-def.h"
+#include "tree-inline.h"
+#include "diagnostic.h"
+#include "c-pretty-print.h"
+
+enum c_language_kind c_language = clk_c;
+
+/* ### When changing hooks, consider if ObjC needs changing too!! ### */
+
+#undef LANG_HOOKS_NAME
+#define LANG_HOOKS_NAME "GNU C"
+#undef LANG_HOOKS_IDENTIFIER_SIZE
+#define LANG_HOOKS_IDENTIFIER_SIZE C_SIZEOF_STRUCT_LANG_IDENTIFIER
+#undef LANG_HOOKS_INIT
+#define LANG_HOOKS_INIT c_objc_common_init
+#undef LANG_HOOKS_FINISH
+#define LANG_HOOKS_FINISH c_common_finish
+#undef LANG_HOOKS_INIT_OPTIONS
+#define LANG_HOOKS_INIT_OPTIONS c_common_init_options
+#undef LANG_HOOKS_INITIALIZE_DIAGNOSTICS
+#define LANG_HOOKS_INITIALIZE_DIAGNOSTICS c_initialize_diagnostics
+#undef LANG_HOOKS_HANDLE_OPTION
+#define LANG_HOOKS_HANDLE_OPTION c_common_handle_option
+#undef LANG_HOOKS_MISSING_ARGUMENT
+#define LANG_HOOKS_MISSING_ARGUMENT c_common_missing_argument
+#undef LANG_HOOKS_POST_OPTIONS
+#define LANG_HOOKS_POST_OPTIONS c_common_post_options
+#undef LANG_HOOKS_GET_ALIAS_SET
+#define LANG_HOOKS_GET_ALIAS_SET c_common_get_alias_set
+#undef LANG_HOOKS_EXPAND_EXPR
+#define LANG_HOOKS_EXPAND_EXPR c_expand_expr
+#undef LANG_HOOKS_EXPAND_DECL
+#define LANG_HOOKS_EXPAND_DECL c_expand_decl
+#undef LANG_HOOKS_MARK_ADDRESSABLE
+#define LANG_HOOKS_MARK_ADDRESSABLE c_mark_addressable
+#undef LANG_HOOKS_PARSE_FILE
+#define LANG_HOOKS_PARSE_FILE c_common_parse_file
+#undef LANG_HOOKS_CLEAR_BINDING_STACK
+#define LANG_HOOKS_CLEAR_BINDING_STACK lhd_do_nothing
+#undef LANG_HOOKS_TRUTHVALUE_CONVERSION
+#define LANG_HOOKS_TRUTHVALUE_CONVERSION c_objc_common_truthvalue_conversion
+#undef LANG_HOOKS_FINISH_INCOMPLETE_DECL
+#define LANG_HOOKS_FINISH_INCOMPLETE_DECL c_finish_incomplete_decl
+#undef LANG_HOOKS_UNSAFE_FOR_REEVAL
+#define LANG_HOOKS_UNSAFE_FOR_REEVAL c_common_unsafe_for_reeval
+#undef LANG_HOOKS_STATICP
+#define LANG_HOOKS_STATICP c_staticp
+#undef LANG_HOOKS_SET_DECL_ASSEMBLER_NAME
+#define LANG_HOOKS_SET_DECL_ASSEMBLER_NAME c_static_assembler_name
+#undef LANG_HOOKS_NO_BODY_BLOCKS
+#define LANG_HOOKS_NO_BODY_BLOCKS true
+#undef LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL
+#define LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL c_warn_unused_global_decl
+#undef LANG_HOOKS_PRINT_IDENTIFIER
+#define LANG_HOOKS_PRINT_IDENTIFIER c_print_identifier
+#undef LANG_HOOKS_FUNCTION_ENTER_NESTED
+#define LANG_HOOKS_FUNCTION_ENTER_NESTED c_push_function_context
+#undef LANG_HOOKS_FUNCTION_LEAVE_NESTED
+#define LANG_HOOKS_FUNCTION_LEAVE_NESTED c_pop_function_context
+#undef LANG_HOOKS_FUNCTION_MISSING_NORETURN_OK_P
+#define LANG_HOOKS_FUNCTION_MISSING_NORETURN_OK_P c_missing_noreturn_ok_p
+#undef LANG_HOOKS_DUP_LANG_SPECIFIC_DECL
+#define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL c_dup_lang_specific_decl
+
+/* Attribute hooks. */
+#undef LANG_HOOKS_COMMON_ATTRIBUTE_TABLE
+#define LANG_HOOKS_COMMON_ATTRIBUTE_TABLE c_common_attribute_table
+#undef LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE
+#define LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE c_common_format_attribute_table
+
+#undef LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN
+#define LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN \
+ c_cannot_inline_tree_fn
+#undef LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS
+#define LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS \
+ c_disregard_inline_limits
+#undef LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P
+#define LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P \
+ anon_aggr_type_p
+#undef LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING
+#define LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING \
+ c_convert_parm_for_inlining
+#undef LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN
+#define LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN c_dump_tree
+
+#undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION
+#define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION c_expand_body
+
+#undef LANG_HOOKS_TYPE_FOR_MODE
+#define LANG_HOOKS_TYPE_FOR_MODE c_common_type_for_mode
+#undef LANG_HOOKS_TYPE_FOR_SIZE
+#define LANG_HOOKS_TYPE_FOR_SIZE c_common_type_for_size
+#undef LANG_HOOKS_SIGNED_TYPE
+#define LANG_HOOKS_SIGNED_TYPE c_common_signed_type
+#undef LANG_HOOKS_UNSIGNED_TYPE
+#define LANG_HOOKS_UNSIGNED_TYPE c_common_unsigned_type
+#undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
+#define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE c_common_signed_or_unsigned_type
+#undef LANG_HOOKS_INCOMPLETE_TYPE_ERROR
+#define LANG_HOOKS_INCOMPLETE_TYPE_ERROR c_incomplete_type_error
+#undef LANG_HOOKS_TYPE_PROMOTES_TO
+#define LANG_HOOKS_TYPE_PROMOTES_TO c_type_promotes_to
+#undef LANG_HOOKS_REGISTER_BUILTIN_TYPE
+#define LANG_HOOKS_REGISTER_BUILTIN_TYPE c_register_builtin_type
+
+/* The C front end's scoping structure is very different from
+ that expected by the language-independent code; it is best
+ to disable all of pushlevel, poplevel, set_block, and getdecls.
+ This means it must also provide its own write_globals. */
+
+#undef LANG_HOOKS_PUSHLEVEL
+#define LANG_HOOKS_PUSHLEVEL lhd_do_nothing_i
+#undef LANG_HOOKS_POPLEVEL
+#define LANG_HOOKS_POPLEVEL lhd_do_nothing_iii_return_null_tree
+#undef LANG_HOOKS_SET_BLOCK
+#define LANG_HOOKS_SET_BLOCK lhd_do_nothing_t
+#undef LANG_HOOKS_GETDECLS
+#define LANG_HOOKS_GETDECLS lhd_return_null_tree_v
+#undef LANG_HOOKS_WRITE_GLOBALS
+#define LANG_HOOKS_WRITE_GLOBALS c_write_global_declarations
+
+/* Hooks for tree gimplification. */
+#undef LANG_HOOKS_GIMPLIFY_EXPR
+#define LANG_HOOKS_GIMPLIFY_EXPR c_gimplify_expr
+
+#undef LANG_HOOKS_TYPES_COMPATIBLE_P
+#define LANG_HOOKS_TYPES_COMPATIBLE_P c_types_compatible_p
+
+/* ### When changing hooks, consider if ObjC needs changing too!! ### */
+
+/* Each front end provides its own. */
+const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
+
+/* Tree code classes. */
+
+#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
+
+const char tree_code_type[] = {
+#include "tree.def"
+ 'x',
+#include "c-common.def"
+};
+#undef DEFTREECODE
+
+/* Table indexed by tree code giving number of expression
+ operands beyond the fixed part of the node structure.
+ Not used for types or decls. */
+
+#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
+
+const unsigned char tree_code_length[] = {
+#include "tree.def"
+ 0,
+#include "c-common.def"
+};
+#undef DEFTREECODE
+
+/* Names of tree components.
+ Used for printing out the tree and error messages. */
+#define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
+
+const char *const tree_code_name[] = {
+#include "tree.def"
+ "@@dummy",
+#include "c-common.def"
+};
+#undef DEFTREECODE
void
-maybe_objc_check_decl (decl)
- tree decl ATTRIBUTE_UNUSED;
+finish_file (void)
{
+ c_objc_common_finish_file ();
}
int
-maybe_objc_comptypes (lhs, rhs, reflexive)
- tree lhs ATTRIBUTE_UNUSED;
- tree rhs ATTRIBUTE_UNUSED;
- int reflexive ATTRIBUTE_UNUSED;
-{
- return -1;
-}
-
-tree
-maybe_objc_method_name (decl)
- tree decl ATTRIBUTE_UNUSED;
+c_types_compatible_p (tree x, tree y)
{
- return 0;
+ return comptypes (TYPE_MAIN_VARIANT (x), TYPE_MAIN_VARIANT (y));
}
-tree
-maybe_building_objc_message_expr ()
-{
- return 0;
-}
-
-int
-recognize_objc_keyword ()
-{
- return 0;
-}
-
-/* Used by c-typeck.c (build_external_ref), but only for objc. */
-
-tree
-lookup_objc_ivar (id)
- tree id ATTRIBUTE_UNUSED;
-{
- return 0;
-}
-
-/* Called at end of parsing, but before end-of-file processing. */
-
-void
-finish_file ()
-{
-#ifndef ASM_OUTPUT_CONSTRUCTOR
- extern tree static_ctors;
-#endif
-#ifndef ASM_OUTPUT_DESTRUCTOR
- extern tree static_dtors;
-#endif
- extern tree build_function_call PARAMS ((tree, tree));
-#if !defined(ASM_OUTPUT_CONSTRUCTOR) || !defined(ASM_OUTPUT_DESTRUCTOR)
- tree void_list_node_1 = build_tree_list (NULL_TREE, void_type_node);
-#endif
-#ifndef ASM_OUTPUT_CONSTRUCTOR
- if (static_ctors)
- {
- tree fnname = get_file_function_name ('I');
- start_function (void_list_node_1,
- build_parse_node (CALL_EXPR, fnname,
- tree_cons (NULL_TREE, NULL_TREE,
- void_list_node_1),
- NULL_TREE),
- NULL_TREE, NULL_TREE);
- fnname = DECL_ASSEMBLER_NAME (current_function_decl);
- store_parm_decls ();
-
- for (; static_ctors; static_ctors = TREE_CHAIN (static_ctors))
- expand_expr_stmt (build_function_call (TREE_VALUE (static_ctors),
- NULL_TREE));
-
- finish_function (0);
-
- assemble_constructor (IDENTIFIER_POINTER (fnname));
- }
-#endif
-#ifndef ASM_OUTPUT_DESTRUCTOR
- if (static_dtors)
- {
- tree fnname = get_file_function_name ('D');
- start_function (void_list_node_1,
- build_parse_node (CALL_EXPR, fnname,
- tree_cons (NULL_TREE, NULL_TREE,
- void_list_node_1),
- NULL_TREE),
- NULL_TREE, NULL_TREE);
- fnname = DECL_ASSEMBLER_NAME (current_function_decl);
- store_parm_decls ();
-
- for (; static_dtors; static_dtors = TREE_CHAIN (static_dtors))
- expand_expr_stmt (build_function_call (TREE_VALUE (static_dtors),
- NULL_TREE));
-
- finish_function (0);
-
- assemble_destructor (IDENTIFIER_POINTER (fnname));
- }
-#endif
-}
-
-/* Called during diagnostic message formatting process to print a
- source-level entity onto BUFFER. The meaning of the format specifiers
- is as follows:
- %D: a general decl,
- %F: a function declaration,
- %T: a type.
-
- These format specifiers form a subset of the format specifiers set used
- by the C++ front-end.
- Please notice when called, the `%' part was already skipped by the
- diagnostic machinery. */
-static int
-c_tree_printer (buffer)
- output_buffer *buffer;
-{
- tree t = va_arg (output_buffer_format_args (buffer), tree);
-
- switch (*output_buffer_text_cursor (buffer))
- {
- case 'D':
- case 'F':
- case 'T':
- {
- const char *n = DECL_NAME (t)
- ? (*decl_printable_name) (t, 2)
- : "({anonymous})";
- output_add_string (buffer, n);
- }
- return 1;
-
- default:
- return 0;
- }
-}
+#include "gtype-c.h"
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