1 /* Language-specific hook definitions for C front end.
2 Copyright (C) 1991, 1995, 1997, 1998,
3 1999, 2000 Free Software Foundation, Inc.
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
29 #include "diagnostic.h"
38 static int c_tree_printer PARAMS ((output_buffer *));
42 extern cpp_reader parse_in;
45 /* Each of the functions defined here
46 is an alternative to a function in objc-actions.c. */
49 lang_decode_option (argc, argv)
53 return c_decode_option (argc, argv);
61 cpp_reader_init (&parse_in, CLK_GNUC89);
63 /* Mark as "unspecified". */
64 flag_bounds_check = -1;
70 /* If still "unspecified", make it match -fbounded-pointers. */
71 if (flag_bounds_check < 0)
72 flag_bounds_check = flag_bounded_pointers;
74 /* If still unspecified, make it match pedantic && -std=c99. */
75 if (mesg_implicit_function_declaration < 0)
77 if (pedantic && flag_isoc99)
78 mesg_implicit_function_declaration = flag_pedantic_errors ? 2 : 1;
80 mesg_implicit_function_declaration = 0;
83 /* the beginning of the file is a new line; check for # */
84 /* With luck, we discover the real source file's name from that
85 and put it in input_filename. */
87 ungetc (check_newline (), finput);
90 save_lang_status = &push_c_function_context;
91 restore_lang_status = &pop_c_function_context;
92 mark_lang_status = &mark_c_function_context;
93 lang_expand_expr = &c_expand_expr;
94 lang_safe_from_p = &c_safe_from_p;
95 lang_printer = &c_tree_printer;
96 lang_expand_decl_stmt = &c_expand_decl_stmt;
113 print_lang_statistics ()
117 /* used by print-tree.c */
120 lang_print_xnode (file, node, indent)
121 FILE *file ATTRIBUTE_UNUSED;
122 tree node ATTRIBUTE_UNUSED;
123 int indent ATTRIBUTE_UNUSED;
127 /* Used by c-lex.c, but only for objc. */
130 lookup_interface (arg)
131 tree arg ATTRIBUTE_UNUSED;
138 tree arg ATTRIBUTE_UNUSED;
144 maybe_objc_check_decl (decl)
145 tree decl ATTRIBUTE_UNUSED;
150 maybe_objc_comptypes (lhs, rhs, reflexive)
151 tree lhs ATTRIBUTE_UNUSED;
152 tree rhs ATTRIBUTE_UNUSED;
153 int reflexive ATTRIBUTE_UNUSED;
159 maybe_objc_method_name (decl)
160 tree decl ATTRIBUTE_UNUSED;
166 maybe_building_objc_message_expr ()
172 recognize_objc_keyword ()
177 /* Used by c-typeck.c (build_external_ref), but only for objc. */
180 lookup_objc_ivar (id)
181 tree id ATTRIBUTE_UNUSED;
186 #if !defined(ASM_OUTPUT_CONSTRUCTOR) || !defined(ASM_OUTPUT_DESTRUCTOR)
187 extern tree static_ctors;
188 extern tree static_dtors;
190 static tree start_cdtor PARAMS ((int));
191 static void finish_cdtor PARAMS ((tree));
194 start_cdtor (method_type)
197 tree fnname = get_file_function_name (method_type);
198 tree void_list_node_1 = build_tree_list (NULL_TREE, void_type_node);
201 start_function (void_list_node_1,
202 build_parse_node (CALL_EXPR, fnname,
203 tree_cons (NULL_TREE, NULL_TREE,
206 NULL_TREE, NULL_TREE);
209 current_function_cannot_inline
210 = "static constructors and destructors cannot be inlined";
212 body = c_begin_compound_stmt ();
216 add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
228 scope = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0);
229 block = poplevel (0, 0, 0);
230 SCOPE_STMT_BLOCK (TREE_PURPOSE (scope)) = block;
231 SCOPE_STMT_BLOCK (TREE_VALUE (scope)) = block;
233 RECHAIN_STMTS (body, COMPOUND_BODY (body));
239 /* Called at end of parsing, but before end-of-file processing. */
244 #ifndef ASM_OUTPUT_CONSTRUCTOR
247 tree body = start_cdtor ('I');
249 for (; static_ctors; static_ctors = TREE_CHAIN (static_ctors))
250 c_expand_expr_stmt (build_function_call (TREE_VALUE (static_ctors),
256 #ifndef ASM_OUTPUT_DESTRUCTOR
259 tree body = start_cdtor ('D');
261 for (; static_dtors; static_dtors = TREE_CHAIN (static_dtors))
262 c_expand_expr_stmt (build_function_call (TREE_VALUE (static_dtors),
270 (*back_end_hook) (getdecls ());
272 if (flag_dump_translation_unit)
273 dump_node_to_file (getdecls (), flag_dump_translation_unit);
276 /* Called during diagnostic message formatting process to print a
277 source-level entity onto BUFFER. The meaning of the format specifiers
280 %F: a function declaration,
283 These format specifiers form a subset of the format specifiers set used
284 by the C++ front-end.
285 Please notice when called, the `%' part was already skipped by the
286 diagnostic machinery. */
288 c_tree_printer (buffer)
289 output_buffer *buffer;
291 tree t = va_arg (output_buffer_format_args (buffer), tree);
293 switch (*output_buffer_text_cursor (buffer))
299 const char *n = DECL_NAME (t)
300 ? (*decl_printable_name) (t, 2)
302 output_add_string (buffer, n);