1/* Definitions for c-common.c. 2 Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
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3 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
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3 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. |
4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify it under 8the terms of the GNU General Public License as published by the Free 9Software Foundation; either version 2, or (at your option) any later 10version. 11 12GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13WARRANTY; without even the implied warranty of MERCHANTABILITY or 14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15for more details. 16 17You should have received a copy of the GNU General Public License 18along with GCC; see the file COPYING. If not, write to the Free
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19Software Foundation, 59 Temple Place - Suite 330, Boston, MA
2002111-1307, USA. */
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19Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 2002110-1301, USA. */ |
21 22#ifndef GCC_C_COMMON_H 23#define GCC_C_COMMON_H 24 25#include "splay-tree.h" 26#include "cpplib.h" 27#include "ggc.h" 28 29/* Usage of TREE_LANG_FLAG_?:
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30 0: COMPOUND_STMT_NO_SCOPE (in COMPOUND_STMT).
31 TREE_NEGATED_INT (in INTEGER_CST).
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30 0: TREE_NEGATED_INT (in INTEGER_CST). |
31 IDENTIFIER_MARKED (used by search routines).
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33 SCOPE_BEGIN_P (in SCOPE_STMT)
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32 DECL_PRETTY_FUNCTION_P (in VAR_DECL)
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35 NEW_FOR_SCOPE_P (in FOR_STMT)
36 ASM_INPUT_P (in ASM_STMT)
37 STMT_EXPR_NO_SCOPE (in STMT_EXPR)
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33 1: C_DECLARED_LABEL_FLAG (in LABEL_DECL)
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39 STMT_IS_FULL_EXPR_P (in _STMT)
40 2: STMT_LINENO_FOR_FN_P (in _STMT)
41 3: SCOPE_NO_CLEANUPS_P (in SCOPE_STMT)
42 COMPOUND_STMT_BODY_BLOCK (in COMPOUND_STMT)
43 STMT_EXPR_WARN_UNUSED_RESULT (in STMT_EXPR)
44 4: SCOPE_PARTIAL_P (in SCOPE_STMT)
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34 STATEMENT_LIST_STMT_EXPR (in STATEMENT_LIST) 35 2: unused 36 3: STATEMENT_LIST_HAS_LABEL (in STATEMENT_LIST) 37 4: unused |
38*/ 39 40/* Reserved identifiers. This is the union of all the keywords for C, 41 C++, and Objective-C. All the type modifiers have to be in one 42 block at the beginning, because they are used as mask bits. There 43 are 27 type modifiers; if we add many more we will have to redesign 44 the mask mechanism. */ 45 46enum rid 47{ 48 /* Modifiers: */ 49 /* C, in empirical order of frequency. */ 50 RID_STATIC = 0, 51 RID_UNSIGNED, RID_LONG, RID_CONST, RID_EXTERN, 52 RID_REGISTER, RID_TYPEDEF, RID_SHORT, RID_INLINE, 53 RID_VOLATILE, RID_SIGNED, RID_AUTO, RID_RESTRICT, 54 55 /* C extensions */ 56 RID_COMPLEX, RID_THREAD, 57 58 /* C++ */ 59 RID_FRIEND, RID_VIRTUAL, RID_EXPLICIT, RID_EXPORT, RID_MUTABLE, 60 61 /* ObjC */ 62 RID_IN, RID_OUT, RID_INOUT, RID_BYCOPY, RID_BYREF, RID_ONEWAY, 63 64 /* C */ 65 RID_INT, RID_CHAR, RID_FLOAT, RID_DOUBLE, RID_VOID, 66 RID_ENUM, RID_STRUCT, RID_UNION, RID_IF, RID_ELSE, 67 RID_WHILE, RID_DO, RID_FOR, RID_SWITCH, RID_CASE, 68 RID_DEFAULT, RID_BREAK, RID_CONTINUE, RID_RETURN, RID_GOTO, 69 RID_SIZEOF, 70 71 /* C extensions */ 72 RID_ASM, RID_TYPEOF, RID_ALIGNOF, RID_ATTRIBUTE, RID_VA_ARG,
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80 RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_PTRBASE,
81 RID_PTREXTENT, RID_PTRVALUE, RID_CHOOSE_EXPR, RID_TYPES_COMPATIBLE_P,
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73 RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_CHOOSE_EXPR, 74 RID_TYPES_COMPATIBLE_P, 75 RID_DFLOAT32, RID_DFLOAT64, RID_DFLOAT128, |
76 77 /* Too many ways of getting the name of a function as a string */ 78 RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME, 79 80 /* C++ */ 81 RID_BOOL, RID_WCHAR, RID_CLASS, 82 RID_PUBLIC, RID_PRIVATE, RID_PROTECTED, 83 RID_TEMPLATE, RID_NULL, RID_CATCH, 84 RID_DELETE, RID_FALSE, RID_NAMESPACE,
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91 RID_NEW, RID_OFFSETOF, RID_OPERATOR,
92 RID_THIS, RID_THROW, RID_TRUE,
93 RID_TRY, RID_TYPENAME, RID_TYPEID,
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85 RID_NEW, RID_OFFSETOF, RID_OPERATOR, 86 RID_THIS, RID_THROW, RID_TRUE, 87 RID_TRY, RID_TYPENAME, RID_TYPEID, |
88 RID_USING, 89 90 /* casts */ 91 RID_CONSTCAST, RID_DYNCAST, RID_REINTCAST, RID_STATCAST, 92 93 /* Objective-C */
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100 RID_ID, RID_AT_ENCODE, RID_AT_END,
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94 RID_AT_ENCODE, RID_AT_END, |
95 RID_AT_CLASS, RID_AT_ALIAS, RID_AT_DEFS, 96 RID_AT_PRIVATE, RID_AT_PROTECTED, RID_AT_PUBLIC,
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103 RID_AT_PROTOCOL, RID_AT_SELECTOR,
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97 RID_AT_PROTOCOL, RID_AT_SELECTOR, |
98 RID_AT_THROW, RID_AT_TRY, RID_AT_CATCH, 99 RID_AT_FINALLY, RID_AT_SYNCHRONIZED, 100 RID_AT_INTERFACE, 101 RID_AT_IMPLEMENTATION, 102 103 RID_MAX, 104 105 RID_FIRST_MODIFIER = RID_STATIC, 106 RID_LAST_MODIFIER = RID_ONEWAY, 107 108 RID_FIRST_AT = RID_AT_ENCODE, 109 RID_LAST_AT = RID_AT_IMPLEMENTATION, 110 RID_FIRST_PQ = RID_IN, 111 RID_LAST_PQ = RID_ONEWAY 112}; 113 114#define OBJC_IS_AT_KEYWORD(rid) \
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121 ((unsigned int)(rid) >= (unsigned int)RID_FIRST_AT && \
122 (unsigned int)(rid) <= (unsigned int)RID_LAST_AT)
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115 ((unsigned int) (rid) >= (unsigned int) RID_FIRST_AT && \ 116 (unsigned int) (rid) <= (unsigned int) RID_LAST_AT) |
117 118#define OBJC_IS_PQ_KEYWORD(rid) \
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125 ((unsigned int)(rid) >= (unsigned int)RID_FIRST_PQ && \
126 (unsigned int)(rid) <= (unsigned int)RID_LAST_PQ)
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119 ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PQ && \ 120 (unsigned int) (rid) <= (unsigned int) RID_LAST_PQ) |
121 122/* The elements of `ridpointers' are identifier nodes for the reserved 123 type names and storage classes. It is indexed by a RID_... value. */
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130extern GTY ((length ("(int)RID_MAX"))) tree *ridpointers;
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124extern GTY ((length ("(int) RID_MAX"))) tree *ridpointers; |
125 126/* Standard named or nameless data types of the C compiler. */ 127 128enum c_tree_index 129{ 130 CTI_WCHAR_TYPE, 131 CTI_SIGNED_WCHAR_TYPE, 132 CTI_UNSIGNED_WCHAR_TYPE, 133 CTI_WINT_TYPE, 134 CTI_SIGNED_SIZE_TYPE, /* For format checking only. */ 135 CTI_UNSIGNED_PTRDIFF_TYPE, /* For format checking only. */ 136 CTI_INTMAX_TYPE, 137 CTI_UINTMAX_TYPE, 138 CTI_WIDEST_INT_LIT_TYPE, 139 CTI_WIDEST_UINT_LIT_TYPE, 140 141 CTI_CHAR_ARRAY_TYPE, 142 CTI_WCHAR_ARRAY_TYPE, 143 CTI_INT_ARRAY_TYPE, 144 CTI_STRING_TYPE, 145 CTI_CONST_STRING_TYPE, 146 147 /* Type for boolean expressions (bool in C++, int in C). */ 148 CTI_TRUTHVALUE_TYPE, 149 CTI_TRUTHVALUE_TRUE, 150 CTI_TRUTHVALUE_FALSE, 151 152 CTI_DEFAULT_FUNCTION_TYPE, 153
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160 CTI_G77_INTEGER_TYPE,
161 CTI_G77_UINTEGER_TYPE,
162 CTI_G77_LONGINT_TYPE,
163 CTI_G77_ULONGINT_TYPE,
164
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154 /* These are not types, but we have to look them up all the time. */ 155 CTI_FUNCTION_NAME_DECL, 156 CTI_PRETTY_FUNCTION_NAME_DECL, 157 CTI_C99_FUNCTION_NAME_DECL, 158 CTI_SAVED_FUNCTION_NAME_DECLS,
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170
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159 |
160 CTI_VOID_ZERO, 161
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162 CTI_NULL, 163 |
164 CTI_MAX 165}; 166 167#define C_RID_CODE(id) (((struct c_common_identifier *) (id))->node.rid_code) 168 169/* Identifier part common to the C front ends. Inherits from 170 tree_identifier, despite appearances. */ 171struct c_common_identifier GTY(()) 172{ 173 struct tree_common common; 174 struct cpp_hashnode node; 175}; 176 177#define wchar_type_node c_global_trees[CTI_WCHAR_TYPE] 178#define signed_wchar_type_node c_global_trees[CTI_SIGNED_WCHAR_TYPE] 179#define unsigned_wchar_type_node c_global_trees[CTI_UNSIGNED_WCHAR_TYPE] 180#define wint_type_node c_global_trees[CTI_WINT_TYPE] 181#define signed_size_type_node c_global_trees[CTI_SIGNED_SIZE_TYPE] 182#define unsigned_ptrdiff_type_node c_global_trees[CTI_UNSIGNED_PTRDIFF_TYPE] 183#define intmax_type_node c_global_trees[CTI_INTMAX_TYPE] 184#define uintmax_type_node c_global_trees[CTI_UINTMAX_TYPE] 185#define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE] 186#define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE] 187 188#define truthvalue_type_node c_global_trees[CTI_TRUTHVALUE_TYPE] 189#define truthvalue_true_node c_global_trees[CTI_TRUTHVALUE_TRUE] 190#define truthvalue_false_node c_global_trees[CTI_TRUTHVALUE_FALSE] 191 192#define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE] 193#define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE] 194#define int_array_type_node c_global_trees[CTI_INT_ARRAY_TYPE] 195#define string_type_node c_global_trees[CTI_STRING_TYPE] 196#define const_string_type_node c_global_trees[CTI_CONST_STRING_TYPE] 197 198#define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE] 199
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209/* g77 integer types, which which must be kept in sync with f/com.h */
210#define g77_integer_type_node c_global_trees[CTI_G77_INTEGER_TYPE]
211#define g77_uinteger_type_node c_global_trees[CTI_G77_UINTEGER_TYPE]
212#define g77_longint_type_node c_global_trees[CTI_G77_LONGINT_TYPE]
213#define g77_ulongint_type_node c_global_trees[CTI_G77_ULONGINT_TYPE]
214
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200#define function_name_decl_node c_global_trees[CTI_FUNCTION_NAME_DECL] 201#define pretty_function_name_decl_node c_global_trees[CTI_PRETTY_FUNCTION_NAME_DECL] 202#define c99_function_name_decl_node c_global_trees[CTI_C99_FUNCTION_NAME_DECL] 203#define saved_function_name_decls c_global_trees[CTI_SAVED_FUNCTION_NAME_DECLS] 204 205/* A node for `((void) 0)'. */ 206#define void_zero_node c_global_trees[CTI_VOID_ZERO] 207
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208/* The node for C++ `__null'. */ 209#define null_node c_global_trees[CTI_NULL] 210 |
211extern GTY(()) tree c_global_trees[CTI_MAX]; 212 213/* In a RECORD_TYPE, a sorted array of the fields of the type, not a 214 tree for size reasons. */ 215struct sorted_fields_type GTY(()) 216{ 217 int len; 218 tree GTY((length ("%h.len"))) elts[1]; 219}; 220 221/* Mark which labels are explicitly declared. 222 These may be shadowed, and may be referenced from nested functions. */ 223#define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label) 224
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237/* Flag strings given by __FUNCTION__ and __PRETTY_FUNCTION__ for a
238 warning if they undergo concatenation. */
239#define C_ARTIFICIAL_STRING_P(NODE) TREE_LANG_FLAG_0 (NODE)
240
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225typedef enum c_language_kind 226{ 227 clk_c = 0, /* C90, C94 or C99 */ 228 clk_objc = 1, /* clk_c with ObjC features. */ 229 clk_cxx = 2, /* ANSI/ISO C++ */ 230 clk_objcxx = 3 /* clk_cxx with ObjC features. */ 231} 232c_language_kind; 233 234/* To test for a specific language use c_language, defined by each 235 front end. For "ObjC features" or "not C++" use the macros. */ 236extern c_language_kind c_language; 237 238#define c_dialect_cxx() (c_language & clk_cxx) 239#define c_dialect_objc() (c_language & clk_objc) 240 241/* Information about a statement tree. */ 242 243struct stmt_tree_s GTY(()) {
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260 /* The last statement added to the tree. */
261 tree x_last_stmt;
262 /* The type of the last expression statement. (This information is
263 needed to implement the statement-expression extension.) */
264 tree x_last_expr_type;
265 /* The last filename we recorded. */
266 const char *x_last_expr_filename;
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244 /* The current statement list being collected. */ 245 tree x_cur_stmt_list; 246 |
247 /* In C++, Nonzero if we should treat statements as full 248 expressions. In particular, this variable is no-zero if at the 249 end of a statement we should destroy any temporaries created 250 during that statement. Similarly, if, at the end of a block, we 251 should destroy any local variables in this block. Normally, this 252 variable is nonzero, since those are the normal semantics of 253 C++. 254 255 However, in order to represent aggregate initialization code as 256 tree structure, we use statement-expressions. The statements 257 within the statement expression should not result in cleanups 258 being run until the entire enclosing statement is complete. 259 260 This flag has no effect in C. */ 261 int stmts_are_full_exprs_p; 262}; 263 264typedef struct stmt_tree_s *stmt_tree; 265 266/* Global state pertinent to the current function. Some C dialects 267 extend this structure with additional fields. */ 268 269struct c_language_function GTY(()) { 270 /* While we are parsing the function, this contains information 271 about the statement-tree that we are building. */ 272 struct stmt_tree_s x_stmt_tree;
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293 /* The stack of SCOPE_STMTs for the current function. */
294 tree x_scope_stmt_stack;
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273}; 274
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297/* When building a statement-tree, this is the last statement added to
298 the tree. */
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275/* When building a statement-tree, this is the current statement list 276 being collected. It's TREE_CHAIN is a back-pointer to the previous 277 statement list. */ |
278
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300#define last_tree (current_stmt_tree ()->x_last_stmt)
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279#define cur_stmt_list (current_stmt_tree ()->x_cur_stmt_list) |
280
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302/* The type of the last expression-statement we have seen. */
303
304#define last_expr_type (current_stmt_tree ()->x_last_expr_type)
305
306/* The name of the last file we have seen. */
307
308#define last_expr_filename (current_stmt_tree ()->x_last_expr_filename)
309
310/* LAST_TREE contains the last statement parsed. These are chained
311 together through the TREE_CHAIN field, but often need to be
312 re-organized since the parse is performed bottom-up. This macro
313 makes LAST_TREE the indicated SUBSTMT of STMT. */
314
315#define RECHAIN_STMTS(stmt, substmt) \
316 do { \
317 substmt = TREE_CHAIN (stmt); \
318 TREE_CHAIN (stmt) = NULL_TREE; \
319 last_tree = stmt; \
320 } while (0)
321
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281/* Language-specific hooks. */ 282
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324extern void (*lang_expand_stmt) (tree);
325extern void (*lang_expand_decl_stmt) (tree);
326extern void (*lang_expand_function_end) (void);
327
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283/* Callback that determines if it's ok for a function to have no 284 noreturn attribute. */ 285extern int (*lang_missing_noreturn_ok_p) (tree); 286
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332extern int yyparse (void);
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287/* If non-NULL, this function is called after a precompile header file 288 is loaded. */ 289extern void (*lang_post_pch_load) (void); 290 291extern void push_file_scope (void); 292extern void pop_file_scope (void); |
293extern stmt_tree current_stmt_tree (void);
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334extern tree *current_scope_stmt_stack (void);
335extern void begin_stmt_tree (tree *);
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294extern tree push_stmt_list (void); 295extern tree pop_stmt_list (tree); |
296extern tree add_stmt (tree);
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337extern void add_decl_stmt (tree);
338extern tree add_scope_stmt (int, int);
339extern void finish_stmt_tree (tree *);
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297extern void push_cleanup (tree, tree, bool); 298extern tree pushdecl_top_level (tree); 299extern tree pushdecl (tree); 300extern tree build_modify_expr (tree, enum tree_code, tree); 301extern tree build_indirect_ref (tree, const char *); |
302
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341extern tree walk_stmt_tree (tree *, walk_tree_fn, void *);
342extern void prep_stmt (tree);
343extern void expand_stmt (tree);
344extern tree c_begin_if_stmt (void);
345extern tree c_begin_while_stmt (void);
346extern void c_finish_while_stmt_cond (tree, tree);
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303extern int c_expand_decl (tree); |
304 305extern int field_decl_cmp (const void *, const void *);
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349extern void resort_sorted_fields (void *, void *, gt_pointer_operator,
350 void *);
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306extern void resort_sorted_fields (void *, void *, gt_pointer_operator, 307 void *); 308extern bool has_c_linkage (tree decl); |
309 310/* Switches common to the C front ends. */ 311 312/* Nonzero if prepreprocessing only. */ 313 314extern int flag_preprocess_only; 315 316/* Zero means that faster, ...NonNil variants of objc_msgSend... 317 calls will be used in ObjC; passing nil receivers to such calls 318 will most likely result in crashes. */ 319extern int flag_nil_receivers; 320 321/* Nonzero means that we will allow new ObjC exception syntax (@throw, 322 @try, etc.) in source code. */ 323extern int flag_objc_exceptions; 324
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325/* Nonzero means that we generate NeXT setjmp based exceptions. */ 326extern int flag_objc_sjlj_exceptions; 327 |
328/* Nonzero means that code generation will be altered to support 329 "zero-link" execution. This currently affects ObjC only, but may 330 affect other languages in the future. */ 331extern int flag_zero_link; 332 333/* Nonzero means emit an '__OBJC, __image_info' for the current translation 334 unit. It will inform the ObjC runtime that class definition(s) herein 335 contained are to replace one(s) previously loaded. */ 336extern int flag_replace_objc_classes; 337 338/* Nonzero means don't output line number information. */ 339 340extern char flag_no_line_commands; 341 342/* Nonzero causes -E output not to be done, but directives such as 343 #define that have side effects are still obeyed. */ 344 345extern char flag_no_output; 346 347/* Nonzero means dump macros in some fashion; contains the 'D', 'M' or 348 'N' of the command line switch. */ 349 350extern char flag_dump_macros; 351 352/* Nonzero means pass #include lines through to the output. */ 353 354extern char flag_dump_includes; 355
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356/* Nonzero means process PCH files while preprocessing. */ 357 358extern bool flag_pch_preprocess; 359 |
360/* The file name to which we should write a precompiled header, or 361 NULL if no header will be written in this compile. */ 362 363extern const char *pch_file; 364 365/* Nonzero if an ISO standard was selected. It rejects macros in the 366 user's namespace. */ 367 368extern int flag_iso; 369 370/* Nonzero if -undef was given. It suppresses target built-in macros 371 and assertions. */ 372 373extern int flag_undef; 374 375/* Nonzero means don't recognize the non-ANSI builtin functions. */ 376 377extern int flag_no_builtin; 378 379/* Nonzero means don't recognize the non-ANSI builtin functions. 380 -ansi sets this. */ 381 382extern int flag_no_nonansi_builtin; 383 384/* Nonzero means give `double' the same size as `float'. */ 385 386extern int flag_short_double; 387 388/* Nonzero means give `wchar_t' the same size as `short'. */ 389 390extern int flag_short_wchar; 391 392/* Nonzero means allow Microsoft extensions without warnings or errors. */ 393extern int flag_ms_extensions; 394 395/* Nonzero means don't recognize the keyword `asm'. */ 396 397extern int flag_no_asm; 398 399/* Nonzero means give string constants the type `const char *', as mandated 400 by the standard. */ 401 402extern int flag_const_strings; 403 404/* Nonzero means to treat bitfields as signed unless they say `unsigned'. */ 405 406extern int flag_signed_bitfields;
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442extern int explicit_flag_signed_bitfields;
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407
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444/* Nonzero means warn about pointer casts that can drop a type qualifier
445 from the pointer target type. */
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408/* Warn about #pragma directives that are not recognized. */ |
409
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447extern int warn_cast_qual;
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410extern int warn_unknown_pragmas; /* Tri state variable. */ |
411
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449/* Warn about functions which might be candidates for format attributes. */
450
451extern int warn_missing_format_attribute;
452
453/* Nonzero means do not warn that K&R style main() is not a function prototype. */
454extern int flag_bsd_no_warn_kr_main;
455
456/* Nonzero means warn about sizeof(function) or addition/subtraction
457 of function pointers. */
458
459extern int warn_pointer_arith;
460
461/* Nonzero means warn for any global function def
462 without separate previous prototype decl. */
463
464extern int warn_missing_prototypes;
465
466/* Warn if adding () is suggested. */
467
468extern int warn_parentheses;
469
470/* Warn if initializer is not completely bracketed. */
471
472extern int warn_missing_braces;
473
474/* Warn about comparison of signed and unsigned values.
475 If -1, neither -Wsign-compare nor -Wno-sign-compare has been specified. */
476
477extern int warn_sign_compare;
478
479/* Nonzero means warn about usage of long long when `-pedantic'. */
480
481extern int warn_long_long;
482
483/* Nonzero means warn about deprecated conversion from string constant to
484 `char *'. */
485
486extern int warn_write_strings;
487
488/* Nonzero means warn about multiple (redundant) decls for the same single
489 variable or function. */
490
491extern int warn_redundant_decls;
492
493/* Warn about testing equality of floating point numbers. */
494
495extern int warn_float_equal;
496
497/* Warn about a subscript that has type char. */
498
499extern int warn_char_subscripts;
500
501/* Warn if a type conversion is done that might have confusing results. */
502
503extern int warn_conversion;
504
505/* Warn about #pragma directives that are not recognized. */
506
507extern int warn_unknown_pragmas; /* Tri state variable. */
508
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412/* Warn about format/argument anomalies in calls to formatted I/O functions 413 (*printf, *scanf, strftime, strfmon, etc.). */ 414 415extern int warn_format; 416
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514/* Warn about Y2K problems with strftime formats. */
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417
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516extern int warn_format_y2k;
517
518/* Warn about excess arguments to formats. */
519
520extern int warn_format_extra_args;
521
522/* Warn about zero-length formats. */
523
524extern int warn_format_zero_length;
525
526/* Warn about non-literal format arguments. */
527
528extern int warn_format_nonliteral;
529
530/* Warn about possible security problems with calls to format functions. */
531
532extern int warn_format_security;
533
534
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418/* C/ObjC language option variables. */ 419 420
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538/* Nonzero means message about use of implicit function declarations;
539 1 means warning; 2 means error. */
540
541extern int mesg_implicit_function_declaration;
542
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421/* Nonzero means allow type mismatches in conditional expressions; 422 just make their values `void'. */ 423 424extern int flag_cond_mismatch; 425 426/* Nonzero means enable C89 Amendment 1 features. */ 427 428extern int flag_isoc94; 429 430/* Nonzero means use the ISO C99 dialect of C. */ 431 432extern int flag_isoc99; 433
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556/* Nonzero means allow the BSD kernel printf enhancments. */
557
558extern int flag_bsd_format;
559
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434/* Nonzero means that we have builtin functions, and main is an int. */ 435 436extern int flag_hosted; 437
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564/* Nonzero means warn when casting a function call to a type that does
565 not match the return type (e.g. (float)sqrt() or (anything*)malloc()
566 when there is no previous declaration of sqrt or malloc. */
567
568extern int warn_bad_function_cast;
569
570/* Warn about traditional constructs whose meanings changed in ANSI C. */
571
572extern int warn_traditional;
573
574/* Nonzero means warn for a declaration found after a statement. */
575
576extern int warn_declaration_after_statement;
577
578/* Nonzero means warn for non-prototype function decls
579 or non-prototyped defs without previous prototype. */
580
581extern int warn_strict_prototypes;
582
583/* Nonzero means warn for any global function def
584 without separate previous decl. */
585
586extern int warn_missing_declarations;
587
588/* Nonzero means warn about extern declarations of objects not at
589 file-scope level and about *all* declarations of functions (whether
590 extern or static) not at file-scope level. Note that we exclude
591 implicit function declarations. To get warnings about those, use
592 -Wimplicit. */
593
594extern int warn_nested_externs;
595
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438/* Warn if main is suspicious. */ 439 440extern int warn_main; 441
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600/* Nonzero means warn about possible violations of sequence point rules. */
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442
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602extern int warn_sequence_point;
603
604/* Nonzero means warn about uninitialized variable when it is initialized with itself.
605 For example: int i = i;, GCC will not warn about this when warn_init_self is nonzero. */
606
607extern int warn_init_self;
608
609
610/* Nonzero means to warn about compile-time division by zero. */
611extern int warn_div_by_zero;
612
613/* Nonzero means warn about use of implicit int. */
614
615extern int warn_implicit_int;
616
617/* Warn about NULL being passed to argument slots marked as requiring
618 non-NULL. */
619
620extern int warn_nonnull;
621
622/* Warn about old-style parameter declaration. */
623
624extern int warn_old_style_definition;
625
626
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443/* ObjC language option variables. */ 444 445 446/* Open and close the file for outputting class declarations, if 447 requested (ObjC). */ 448 449extern int flag_gen_declaration; 450
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635/* Generate code for GNU or NeXT runtime environment. */
636
637extern int flag_next_runtime;
638
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451/* Tells the compiler that this is a special run. Do not perform any 452 compiling, instead we are to test some platform dependent features 453 and output a C header file with appropriate definitions. */ 454 455extern int print_struct_values; 456 457/* ???. Undocumented. */ 458 459extern const char *constant_string_class_name; 460
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649/* Warn if multiple methods are seen for the same selector, but with
650 different argument types. Performs the check on the whole selector
651 table at the end of compilation. */
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461
|
653extern int warn_selector;
654
655/* Warn if a @selector() is found, and no method with that selector
656 has been previously declared. The check is done on each
657 @selector() as soon as it is found - so it warns about forward
658 declarations. */
659
660extern int warn_undeclared_selector;
661
662/* Warn if methods required by a protocol are not implemented in the
663 class adopting it. When turned off, methods inherited to that
664 class are also considered implemented. */
665
666extern int warn_protocol;
667
668
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462/* C++ language option variables. */ 463 464 465/* Nonzero means don't recognize any extension keywords. */ 466 467extern int flag_no_gnu_keywords; 468 469/* Nonzero means do emit exported implementations of functions even if 470 they can be inlined. */ 471 472extern int flag_implement_inlines; 473 474/* Nonzero means that implicit instantiations will be emitted if needed. */ 475 476extern int flag_implicit_templates; 477 478/* Nonzero means that implicit instantiations of inline templates will be 479 emitted if needed, even if instantiations of non-inline templates 480 aren't. */ 481 482extern int flag_implicit_inline_templates; 483 484/* Nonzero means generate separate instantiation control files and 485 juggle them at link time. */ 486 487extern int flag_use_repository; 488 489/* Nonzero if we want to issue diagnostics that the standard says are not 490 required. */ 491 492extern int flag_optional_diags; 493 494/* Nonzero means we should attempt to elide constructors when possible. */ 495 496extern int flag_elide_constructors; 497 498/* Nonzero means that member functions defined in class scope are 499 inline by default. */ 500 501extern int flag_default_inline; 502 503/* Controls whether compiler generates 'type descriptor' that give 504 run-time type information. */ 505 506extern int flag_rtti; 507 508/* Nonzero if we want to conserve space in the .o files. We do this 509 by putting uninitialized data and runtime initialized data into 510 .common instead of .data at the expense of not flagging multiple 511 definitions. */ 512 513extern int flag_conserve_space; 514 515/* Nonzero if we want to obey access control semantics. */ 516 517extern int flag_access_control; 518 519/* Nonzero if we want to check the return value of new and avoid calling 520 constructors if it is a null pointer. */ 521 522extern int flag_check_new; 523 524/* Nonzero if we want the new ISO rules for pushing a new scope for `for' 525 initialization variables. 526 0: Old rules, set by -fno-for-scope. 527 2: New ISO rules, set by -ffor-scope. 528 1: Try to implement new ISO rules, but with backup compatibility 529 (and warnings). This is the default, for now. */ 530 531extern int flag_new_for_scope; 532 533/* Nonzero if we want to emit defined symbols with common-like linkage as 534 weak symbols where possible, in order to conform to C++ semantics. 535 Otherwise, emit them as local symbols. */ 536 537extern int flag_weak; 538 539/* 0 means we want the preprocessor to not emit line directives for 540 the current working directory. 1 means we want it to do it. -1 541 means we should decide depending on whether debugging information 542 is being emitted or not. */ 543 544extern int flag_working_directory; 545 546/* Nonzero to use __cxa_atexit, rather than atexit, to register 547 destructors for local statics and global objects. */ 548 549extern int flag_use_cxa_atexit; 550
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551/* Nonzero to use __cxa_get_exception_ptr in the C++ exception-handling 552 logic. */ 553 554extern int flag_use_cxa_get_exception_ptr; 555 |
556/* Nonzero means make the default pedwarns warnings instead of errors. 557 The value of this flag is ignored if -pedantic is specified. */ 558 559extern int flag_permissive; 560 561/* Nonzero means to implement standard semantics for exception 562 specifications, calling unexpected if an exception is thrown that 563 doesn't match the specification. Zero means to treat them as 564 assertions and optimize accordingly, but not check them. */ 565 566extern int flag_enforce_eh_specs; 567
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770/* Nonzero means warn about things that will change when compiling
771 with an ABI-compliant compiler. */
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568/* Nonzero (the default) means to generate thread-safe code for 569 initializing local statics. */ |
570
|
773extern int warn_abi;
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571extern int flag_threadsafe_statics; |
572
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775/* Nonzero means warn about invalid uses of offsetof. */
776
777extern int warn_invalid_offsetof;
778
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573/* Nonzero means warn about implicit declarations. */ 574 575extern int warn_implicit; 576
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783/* Nonzero means warn when all ctors or dtors are private, and the class
784 has no friends. */
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577/* Warn about using __null (as NULL in C++) as sentinel. For code compiled 578 with GCC this doesn't matter as __null is guaranteed to have the right 579 size. */ |
580
|
786extern int warn_ctor_dtor_privacy;
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581extern int warn_strict_null_sentinel; |
582
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788/* Nonzero means warn in function declared in derived class has the
789 same name as a virtual in the base class, but fails to match the
790 type signature of any virtual function in the base class. */
791
792extern int warn_overloaded_virtual;
793
794/* Nonzero means warn when declaring a class that has a non virtual
795 destructor, when it really ought to have a virtual one. */
796
797extern int warn_nonvdtor;
798
799/* Nonzero means warn when the compiler will reorder code. */
800
801extern int warn_reorder;
802
803/* Nonzero means warn when synthesis behavior differs from Cfront's. */
804
805extern int warn_synth;
806
807/* Nonzero means warn when we convert a pointer to member function
808 into a pointer to (void or function). */
809
810extern int warn_pmf2ptr;
811
812/* Nonzero means warn about violation of some Effective C++ style rules. */
813
814extern int warn_ecpp;
815
816/* Nonzero means warn where overload resolution chooses a promotion from
817 unsigned to signed over a conversion to an unsigned of the same size. */
818
819extern int warn_sign_promo;
820
821/* Nonzero means warn when an old-style cast is used. */
822
823extern int warn_old_style_cast;
824
825/* Nonzero means warn when non-templatized friend functions are
826 declared within a template */
827
828extern int warn_nontemplate_friend;
829
830/* Nonzero means complain about deprecated features. */
831
832extern int warn_deprecated;
833
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583/* Maximum template instantiation depth. This limit is rather 584 arbitrary, but it exists to limit the time it takes to notice 585 infinite template instantiations. */ 586 587extern int max_tinst_depth; 588 589/* Nonzero means the expression being parsed will never be evaluated. 590 This is a count, since unevaluated expressions can nest. */ 591 592extern int skip_evaluation; 593 594/* C types are partitioned into three subsets: object, function, and 595 incomplete types. */ 596#define C_TYPE_OBJECT_P(type) \ 597 (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type)) 598 599#define C_TYPE_INCOMPLETE_P(type) \ 600 (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type) == 0) 601 602#define C_TYPE_FUNCTION_P(type) \ 603 (TREE_CODE (type) == FUNCTION_TYPE) 604 605/* For convenience we define a single macro to identify the class of 606 object or incomplete types. */ 607#define C_TYPE_OBJECT_OR_INCOMPLETE_P(type) \ 608 (!C_TYPE_FUNCTION_P (type)) 609
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861/* Record in each node resulting from a binary operator
862 what operator was specified for it. */
863#define C_EXP_ORIGINAL_CODE(exp) ((enum tree_code) TREE_COMPLEXITY (exp))
864
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610/* Attribute table common to the C front ends. */ 611extern const struct attribute_spec c_common_attribute_table[]; 612extern const struct attribute_spec c_common_format_attribute_table[]; 613 614/* Pointer to function to lazily generate the VAR_DECL for __FUNCTION__ etc. 615 ID is the identifier to use, NAME is the string. 616 TYPE_DEP indicates whether it depends on type of the function or not 617 (i.e. __PRETTY_FUNCTION__). */ 618 619extern tree (*make_fname_decl) (tree, int); 620 621extern tree identifier_global_value (tree); 622extern void record_builtin_type (enum rid, const char *, tree); 623extern tree build_void_list_node (void); 624extern void start_fname_decls (void); 625extern void finish_fname_decls (void); 626extern const char *fname_as_string (int); 627extern tree fname_decl (unsigned, tree); 628
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884extern void check_function_arguments (tree, tree);
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629extern void check_function_arguments (tree, tree, tree); |
630extern void check_function_arguments_recurse (void (*) 631 (void *, tree, 632 unsigned HOST_WIDE_INT), 633 void *, tree, 634 unsigned HOST_WIDE_INT);
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890extern void check_function_format (int *, tree, tree);
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635extern void check_function_format (tree, tree); |
636extern void set_Wformat (int); 637extern tree handle_format_attribute (tree *, tree, tree, int, bool *); 638extern tree handle_format_arg_attribute (tree *, tree, tree, int, bool *); 639extern int c_common_handle_option (size_t code, const char *arg, int value); 640extern bool c_common_missing_argument (const char *opt, size_t code); 641extern tree c_common_type_for_mode (enum machine_mode, int); 642extern tree c_common_type_for_size (unsigned int, int); 643extern tree c_common_unsigned_type (tree); 644extern tree c_common_signed_type (tree); 645extern tree c_common_signed_or_unsigned_type (int, tree);
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646extern tree c_build_bitfield_integer_type (unsigned HOST_WIDE_INT, int); |
647extern tree c_common_truthvalue_conversion (tree); 648extern void c_apply_type_quals_to_decl (int, tree);
|
903extern tree c_sizeof_or_alignof_type (tree, enum tree_code, int);
|
649extern tree c_sizeof_or_alignof_type (tree, bool, int); |
650extern tree c_alignof_expr (tree); 651/* Print an error message for invalid operands to arith operation CODE. 652 NOP_EXPR is used as a special case (see truthvalue_conversion). */ 653extern void binary_op_error (enum tree_code);
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908#define my_friendly_assert(EXP, N) (void) \
909 (((EXP) == 0) ? (fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0) : 0)
910
911extern tree c_expand_expr_stmt (tree);
912extern void c_expand_start_cond (tree, int, tree);
913extern void c_finish_then (void);
914extern void c_expand_start_else (void);
915extern void c_finish_else (void);
916extern void c_expand_end_cond (void);
917/* Validate the expression after `case' and apply default promotions. */
918extern tree check_case_value (tree);
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654extern tree fix_string_type (tree); 655struct varray_head_tag; 656extern void constant_expression_warning (tree);
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657extern void strict_aliasing_warning(tree, tree, tree); 658extern void empty_body_warning (tree, tree); |
659extern tree convert_and_check (tree, tree); 660extern void overflow_warning (tree);
|
924extern void unsigned_conversion_warning (tree, tree);
|
661extern bool c_determine_visibility (tree); 662extern bool same_scalar_type_ignoring_signedness (tree, tree); |
663
|
926/* Read the rest of the current #-directive line. */
927extern char *get_directive_line (void);
928#define GET_DIRECTIVE_LINE() get_directive_line ()
929#define c_sizeof(T) c_sizeof_or_alignof_type (T, SIZEOF_EXPR, 1)
930#define c_alignof(T) c_sizeof_or_alignof_type (T, ALIGNOF_EXPR, 1)
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664#define c_sizeof(T) c_sizeof_or_alignof_type (T, true, 1) 665#define c_alignof(T) c_sizeof_or_alignof_type (T, false, 1) |
666 667/* Subroutine of build_binary_op, used for comparison operations. 668 See if the operands have both been converted from subword integer types 669 and, if so, perhaps change them both back to their original type. */ 670extern tree shorten_compare (tree *, tree *, tree *, enum tree_code *); 671 672extern tree pointer_int_sum (enum tree_code, tree, tree); 673extern unsigned int min_precision (tree, int); 674 675/* Add qualifiers to a type, in the fashion for C. */ 676extern tree c_build_qualified_type (tree, int); 677 678/* Build tree nodes and builtin functions common to both C and C++ language 679 frontends. */ 680extern void c_common_nodes_and_builtins (void); 681
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682extern void set_builtin_user_assembler_name (tree decl, const char *asmspec); 683 |
684extern void disable_builtin_function (const char *); 685
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686extern void set_compound_literal_name (tree decl); 687 |
688extern tree build_va_arg (tree, tree); 689 690extern unsigned int c_common_init_options (unsigned int, const char **); 691extern bool c_common_post_options (const char **); 692extern bool c_common_init (void); 693extern void c_common_finish (void); 694extern void c_common_parse_file (int); 695extern HOST_WIDE_INT c_common_get_alias_set (tree); 696extern void c_register_builtin_type (tree, const char*); 697extern bool c_promoting_integer_type_p (tree); 698extern int self_promoting_args_p (tree); 699extern tree strip_array_types (tree); 700extern tree strip_pointer_operator (tree);
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701extern HOST_WIDE_INT c_common_to_target_charset (HOST_WIDE_INT); |
702
|
963/* This function resets the parsers' state in preparation for parsing
964 a new file. */
965extern void c_reset_state (void);
|
703/* This is the basic parsing function. */ 704extern void c_parse_file (void); 705/* This is misnamed, it actually performs end-of-compilation processing. */ 706extern void finish_file (void); 707
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708 |
709/* These macros provide convenient access to the various _STMT nodes. */ 710
|
973/* Nonzero if this statement should be considered a full-expression,
974 i.e., if temporaries created during this statement should have
975 their destructors run at the end of this statement. (In C, this
976 will always be false, since there are no destructors.) */
977#define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
|
711/* Nonzero if a given STATEMENT_LIST represents the outermost binding 712 if a statement expression. */ 713#define STATEMENT_LIST_STMT_EXPR(NODE) \ 714 TREE_LANG_FLAG_1 (STATEMENT_LIST_CHECK (NODE)) |
715
|
979/* IF_STMT accessors. These give access to the condition of the if
980 statement, the then block of the if statement, and the else block
981 of the if statement if it exists. */
982#define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
983#define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
984#define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
|
716/* Nonzero if a label has been added to the statement list. */ 717#define STATEMENT_LIST_HAS_LABEL(NODE) \ 718 TREE_LANG_FLAG_3 (STATEMENT_LIST_CHECK (NODE)) |
719
|
986/* WHILE_STMT accessors. These give access to the condition of the
987 while statement and the body of the while statement, respectively. */
988#define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
989#define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
990
991/* DO_STMT accessors. These give access to the condition of the do
992 statement and the body of the do statement, respectively. */
993#define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
994#define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
995
996/* RETURN_STMT accessors. These give the expression associated with a
997 return statement, and whether it should be ignored when expanding
998 (as opposed to inlining). */
999#define RETURN_STMT_EXPR(NODE) TREE_OPERAND (RETURN_STMT_CHECK (NODE), 0)
1000
1001/* EXPR_STMT accessor. This gives the expression associated with an
1002 expression statement. */
1003#define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
1004
1005/* FOR_STMT accessors. These give access to the init statement,
1006 condition, update expression, and body of the for statement,
1007 respectively. */
1008#define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
1009#define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
1010#define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
1011#define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
1012
1013/* SWITCH_STMT accessors. These give access to the condition, body and
1014 original condition type (before any compiler conversions)
1015 of the switch statement, respectively. */
1016#define SWITCH_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
1017#define SWITCH_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
1018#define SWITCH_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
1019
1020/* CASE_LABEL accessors. These give access to the high and low values
1021 of a case label, respectively. */
1022#define CASE_LOW(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 0)
1023#define CASE_HIGH(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 1)
1024#define CASE_LABEL_DECL(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 2)
1025
1026/* GOTO_STMT accessor. This gives access to the label associated with
1027 a goto statement. */
1028#define GOTO_DESTINATION(NODE) TREE_OPERAND (GOTO_STMT_CHECK (NODE), 0)
1029/* True for goto created artificially by the compiler. */
1030#define GOTO_FAKE_P(NODE) (TREE_LANG_FLAG_0 (GOTO_STMT_CHECK (NODE)))
1031
1032/* COMPOUND_STMT accessor. This gives access to the TREE_LIST of
1033 statements associated with a compound statement. The result is the
1034 first statement in the list. Succeeding nodes can be accessed by
1035 calling TREE_CHAIN on a node in the list. */
1036#define COMPOUND_BODY(NODE) TREE_OPERAND (COMPOUND_STMT_CHECK (NODE), 0)
1037
1038/* ASM_STMT accessors. ASM_STRING returns a STRING_CST for the
1039 instruction (e.g., "mov x, y"). ASM_OUTPUTS, ASM_INPUTS, and
1040 ASM_CLOBBERS represent the outputs, inputs, and clobbers for the
1041 statement. */
1042#define ASM_CV_QUAL(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 0)
1043#define ASM_STRING(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 1)
1044#define ASM_OUTPUTS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 2)
1045#define ASM_INPUTS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 3)
1046#define ASM_CLOBBERS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 4)
1047
1048/* DECL_STMT accessor. This gives access to the DECL associated with
1049 the given declaration statement. */
1050#define DECL_STMT_DECL(NODE) TREE_OPERAND (DECL_STMT_CHECK (NODE), 0)
1051
1052/* STMT_EXPR accessor. */
1053#define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
1054
1055/* Nonzero if this statement-expression does not have an associated scope. */
1056#define STMT_EXPR_NO_SCOPE(NODE) \
1057 TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
1058
1059/* Nonzero if this statement-expression should cause warning if its result
1060 is not used. */
1061#define STMT_EXPR_WARN_UNUSED_RESULT(NODE) \
1062 TREE_LANG_FLAG_3 (STMT_EXPR_CHECK (NODE))
1063
1064/* LABEL_STMT accessor. This gives access to the label associated with
1065 the given label statement. */
1066#define LABEL_STMT_LABEL(NODE) TREE_OPERAND (LABEL_STMT_CHECK (NODE), 0)
1067
|
720/* COMPOUND_LITERAL_EXPR accessors. */ 721#define COMPOUND_LITERAL_EXPR_DECL_STMT(NODE) \ 722 TREE_OPERAND (COMPOUND_LITERAL_EXPR_CHECK (NODE), 0) 723#define COMPOUND_LITERAL_EXPR_DECL(NODE) \
|
1072 DECL_STMT_DECL (COMPOUND_LITERAL_EXPR_DECL_STMT (NODE))
|
724 DECL_EXPR_DECL (COMPOUND_LITERAL_EXPR_DECL_STMT (NODE)) |
725
|
1074/* Nonzero if this SCOPE_STMT is for the beginning of a scope. */
1075#define SCOPE_BEGIN_P(NODE) \
1076 (TREE_LANG_FLAG_0 (SCOPE_STMT_CHECK (NODE)))
1077
1078/* Nonzero if this SCOPE_STMT is for the end of a scope. */
1079#define SCOPE_END_P(NODE) \
1080 (!SCOPE_BEGIN_P (SCOPE_STMT_CHECK (NODE)))
1081
1082/* The BLOCK containing the declarations contained in this scope. */
1083#define SCOPE_STMT_BLOCK(NODE) \
1084 (TREE_OPERAND (SCOPE_STMT_CHECK (NODE), 0))
1085
1086/* Nonzero for a SCOPE_STMT if there were no variables in this scope. */
1087#define SCOPE_NULLIFIED_P(NODE) \
1088 (SCOPE_STMT_BLOCK ((NODE)) == NULL_TREE)
1089
1090/* Nonzero for a SCOPE_STMT which represents a lexical scope, but
1091 which should be treated as non-existent from the point of view of
1092 running cleanup actions. */
1093#define SCOPE_NO_CLEANUPS_P(NODE) \
1094 (TREE_LANG_FLAG_3 (SCOPE_STMT_CHECK (NODE)))
1095
1096/* Nonzero for a SCOPE_STMT if this statement is for a partial scope.
1097 For example, in:
1098
1099 S s;
1100 l:
1101 S s2;
1102 goto l;
1103
1104 there is (implicitly) a new scope after `l', even though there are
1105 no curly braces. In particular, when we hit the goto, we must
1106 destroy s2 and then re-construct it. For the implicit scope,
1107 SCOPE_PARTIAL_P will be set. */
1108#define SCOPE_PARTIAL_P(NODE) \
1109 (TREE_LANG_FLAG_4 (SCOPE_STMT_CHECK (NODE)))
1110
1111/* Nonzero for an ASM_STMT if the assembly statement is volatile. */
1112#define ASM_VOLATILE_P(NODE) \
1113 (ASM_CV_QUAL (ASM_STMT_CHECK (NODE)) != NULL_TREE)
1114
1115/* The VAR_DECL to clean up in a CLEANUP_STMT. */
1116#define CLEANUP_DECL(NODE) \
1117 TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
1118/* The cleanup to run in a CLEANUP_STMT. */
1119#define CLEANUP_EXPR(NODE) \
1120 TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
1121
1122/* The filename we are changing to as of this FILE_STMT. */
1123#define FILE_STMT_FILENAME_NODE(NODE) \
1124 (TREE_OPERAND (FILE_STMT_CHECK (NODE), 0))
1125#define FILE_STMT_FILENAME(NODE) \
1126 (IDENTIFIER_POINTER (FILE_STMT_FILENAME_NODE (NODE)))
1127
1128/* The line-number at which a statement began. But if
1129 STMT_LINENO_FOR_FN_P does holds, then this macro gives the
1130 line number for the end of the current function instead. */
1131#define STMT_LINENO(NODE) \
1132 (TREE_COMPLEXITY ((NODE)))
1133
1134/* If nonzero, the STMT_LINENO for NODE is the line at which the
1135 function ended. */
1136#define STMT_LINENO_FOR_FN_P(NODE) \
1137 (TREE_LANG_FLAG_2 ((NODE)))
1138
1139/* Nonzero if we want the new ISO rules for pushing a new scope for `for'
1140 initialization variables. */
1141#define NEW_FOR_SCOPE_P(NODE) (TREE_LANG_FLAG_0 (NODE))
1142
1143/* Nonzero if we want to create an ASM_INPUT instead of an
1144 ASM_OPERAND with no operands. */
1145#define ASM_INPUT_P(NODE) (TREE_LANG_FLAG_0 (NODE))
1146
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726#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM, 727 728enum c_tree_code { 729 C_DUMMY_TREE_CODE = LAST_AND_UNUSED_TREE_CODE, 730#include "c-common.def" 731 LAST_C_TREE_CODE 732}; 733 734#undef DEFTREECODE 735
|
1157#define c_common_stmt_codes \
1158 CLEANUP_STMT, EXPR_STMT, COMPOUND_STMT, \
1159 DECL_STMT, IF_STMT, FOR_STMT, \
1160 WHILE_STMT, DO_STMT, RETURN_STMT, \
1161 BREAK_STMT, CONTINUE_STMT, SCOPE_STMT, \
1162 SWITCH_STMT, GOTO_STMT, LABEL_STMT, \
1163 ASM_STMT, FILE_STMT, CASE_LABEL
1164
1165/* TRUE if a code represents a statement. The front end init
1166 langhook should take care of initialization of this array. */
1167extern bool statement_code_p[MAX_TREE_CODES];
1168
1169#define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
1170
1171#define INIT_STATEMENT_CODES(STMT_CODES) \
1172 do { \
1173 unsigned int i; \
1174 memset (&statement_code_p, 0, sizeof (statement_code_p)); \
1175 for (i = 0; i < ARRAY_SIZE (STMT_CODES); i++) \
1176 statement_code_p[STMT_CODES[i]] = true; \
1177 } while (0)
1178
1179extern void genrtl_do_pushlevel (void);
1180extern void genrtl_goto_stmt (tree);
1181extern void genrtl_expr_stmt (tree);
1182extern void genrtl_expr_stmt_value (tree, int, int);
1183extern void genrtl_decl_stmt (tree);
1184extern void genrtl_if_stmt (tree);
1185extern void genrtl_while_stmt (tree);
1186extern void genrtl_do_stmt (tree);
1187extern void genrtl_return_stmt (tree);
1188extern void genrtl_for_stmt (tree);
1189extern void genrtl_break_stmt (void);
1190extern void genrtl_continue_stmt (void);
1191extern void genrtl_scope_stmt (tree);
1192extern void genrtl_switch_stmt (tree);
1193extern void genrtl_case_label (tree);
1194extern void genrtl_compound_stmt (tree);
1195extern void genrtl_asm_stmt (tree, tree, tree, tree, tree, int);
1196extern void genrtl_cleanup_stmt (tree);
1197extern int stmts_are_full_exprs_p (void);
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736extern int anon_aggr_type_p (tree); 737 738/* For a VAR_DECL that is an anonymous union, these are the various 739 sub-variables that make up the anonymous union. */ 740#define DECL_ANON_UNION_ELEMS(NODE) DECL_ARGUMENTS ((NODE)) 741 742/* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */ 743#define DECL_C_BIT_FIELD(NODE) \ 744 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) == 1) 745#define SET_DECL_C_BIT_FIELD(NODE) \ 746 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 1) 747#define CLEAR_DECL_C_BIT_FIELD(NODE) \ 748 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 0) 749
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1212/* In a VAR_DECL, nonzero if the decl is a register variable with
1213 an explicit asm specification. */
1214#define DECL_C_HARD_REGISTER(DECL) DECL_LANG_FLAG_4 (VAR_DECL_CHECK (DECL))
1215
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750extern void emit_local_var (tree);
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1217extern void make_rtl_for_local_static (tree);
1218extern tree expand_cond (tree);
1219extern tree c_expand_return (tree);
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751extern tree do_case (tree, tree); 752extern tree build_stmt (enum tree_code, ...); 753extern tree build_case_label (tree, tree, tree);
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1223extern tree build_continue_stmt (void);
1224extern tree build_break_stmt (void);
1225extern tree build_return_stmt (tree);
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754
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1227#define COMPOUND_STMT_NO_SCOPE(NODE) TREE_LANG_FLAG_0 (NODE)
1228
1229/* Used by the C++ frontend to mark the block around the member
1230 initializers and cleanups. */
1231#define COMPOUND_STMT_BODY_BLOCK(NODE) TREE_LANG_FLAG_3 (NODE)
1232
1233extern void c_expand_asm_operands (tree, tree, tree, tree, int, location_t);
1234
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755/* These functions must be defined by each front-end which implements 756 a variant of the C language. They are used in c-common.c. */ 757 758extern tree build_unary_op (enum tree_code, tree, int); 759extern tree build_binary_op (enum tree_code, tree, tree, int);
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1240extern int lvalue_p (tree);
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760extern tree perform_integral_promotions (tree); 761 762/* These functions must be defined by each front-end which implements 763 a variant of the C language. They are used by port files. */ 764 |
765extern tree default_conversion (tree); 766 767/* Given two integer or real types, return the type for their sum. 768 Given two compatible ANSI C types, returns the merged type. */ 769 770extern tree common_type (tree, tree); 771
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1248extern tree expand_tree_builtin (tree, tree, tree);
1249
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772extern tree decl_constant_value (tree); 773 774/* Handle increment and decrement of boolean types. */ 775extern tree boolean_increment (enum tree_code, tree); 776
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1255/* Hook currently used only by the C++ front end to reset internal state
1256 after entering or leaving a header file. */
1257extern void extract_interface_info (void);
1258
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777extern int case_compare (splay_tree_key, splay_tree_key); 778
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1261extern tree c_add_case_label (splay_tree, tree, tree, tree);
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779extern tree c_add_case_label (splay_tree, tree, tree, tree, tree); |
780
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781extern void c_do_switch_warnings (splay_tree, location_t, tree, tree); 782 |
783extern tree build_function_call (tree, tree); 784
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785extern tree resolve_overloaded_builtin (tree, tree); 786 |
787extern tree finish_label_address_expr (tree); 788 789/* Same function prototype, but the C and C++ front ends have 790 different implementations. Used in c-common.c. */ 791extern tree lookup_label (tree);
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792extern tree lookup_name (tree); |
793 794extern int vector_types_convertible_p (tree t1, tree t2); 795 796extern rtx c_expand_expr (tree, rtx, enum machine_mode, int, rtx *); 797
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1275extern int c_safe_from_p (rtx, tree);
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798extern tree c_staticp (tree); |
799
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1277extern int c_staticp (tree);
1278
1279extern int c_common_unsafe_for_reeval (tree);
1280
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800extern void init_c_lex (void); 801 802extern void c_cpp_builtins (cpp_reader *); 803 804/* Positive if an implicit `extern "C"' scope has just been entered; 805 negative if such a scope has just been exited. */
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1287extern int pending_lang_change;
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806extern GTY(()) int pending_lang_change; |
807 808/* Information recorded about each file examined during compilation. */ 809 810struct c_fileinfo 811{ 812 int time; /* Time spent in the file. */
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1294 short interface_only; /* Flags - used only by C++ */
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813 814 /* Flags used only by C++. 815 INTERFACE_ONLY nonzero means that we are in an "interface" section 816 of the compiler. INTERFACE_UNKNOWN nonzero means we cannot trust 817 the value of INTERFACE_ONLY. If INTERFACE_UNKNOWN is zero and 818 INTERFACE_ONLY is zero, it means that we are responsible for 819 exporting definitions that others might need. */ 820 short interface_only; |
821 short interface_unknown; 822}; 823 824struct c_fileinfo *get_fileinfo (const char *); 825extern void dump_time_statistics (void); 826 827extern bool c_dump_tree (void *, tree); 828
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829extern void c_warn_unused_result (tree *); 830 831extern void verify_sequence_points (tree); 832 833extern tree fold_offsetof (tree, tree); 834 835/* Places where an lvalue, or modifiable lvalue, may be required. 836 Used to select diagnostic messages in lvalue_error and 837 readonly_error. */ 838enum lvalue_use { 839 lv_assign, 840 lv_increment, 841 lv_decrement, 842 lv_addressof, 843 lv_asm 844}; 845 846extern void lvalue_error (enum lvalue_use); 847 848extern int complete_array_type (tree *, tree, bool); 849 850extern tree builtin_type_for_size (int, bool); 851 852extern void warn_array_subscript_with_type_char (tree); 853 854/* In c-gimplify.c */ 855extern void c_genericize (tree); 856extern int c_gimplify_expr (tree *, tree *, tree *); 857extern tree c_build_bind_expr (tree, tree); 858 859/* In c-pch.c */ |
860extern void pch_init (void); 861extern int c_common_valid_pch (cpp_reader *pfile, const char *name, int fd); 862extern void c_common_read_pch (cpp_reader *pfile, const char *name, int fd, 863 const char *orig); 864extern void c_common_write_pch (void); 865extern void c_common_no_more_pch (void);
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866extern void c_common_pch_pragma (cpp_reader *pfile, const char *); 867extern void c_common_print_pch_checksum (FILE *f); 868 869/* In *-checksum.c */ 870extern const unsigned char executable_checksum[16]; 871 |
872extern void builtin_define_with_value (const char *, const char *, int); 873extern void c_stddef_cpp_builtins (void); 874extern void fe_file_change (const struct line_map *);
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1312extern int c_estimate_num_insns (tree decl);
1313extern bool c_decl_uninit (tree t);
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875extern void c_parse_error (const char *, enum cpp_ttype, tree); 876
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1316/* The following have been moved here from c-tree.h, since they're needed
1317 in the ObjC++ world, too. What is more, stub-objc.c could use a few
1318 prototypes. */
1319extern tree lookup_interface (tree);
1320extern tree is_class_name (tree);
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877/* Objective-C / Objective-C++ entry points. */ 878 879/* The following ObjC/ObjC++ functions are called by the C and/or C++ 880 front-ends; they all must have corresponding stubs in stub-objc.c. */ 881extern tree objc_is_class_name (tree); |
882extern tree objc_is_object_ptr (tree); 883extern void objc_check_decl (tree);
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1323extern int objc_comptypes (tree, tree, int);
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884extern int objc_is_reserved_word (tree); 885extern bool objc_compare_types (tree, tree, int, tree); 886extern void objc_volatilize_decl (tree); 887extern bool objc_type_quals_match (tree, tree); 888extern tree objc_rewrite_function_call (tree, tree); |
889extern tree objc_message_selector (void);
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1325extern tree lookup_objc_ivar (tree);
1326extern void *get_current_scope (void);
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890extern tree objc_lookup_ivar (tree, tree); 891extern void objc_clear_super_receiver (void); 892extern int objc_is_public (tree, tree); 893extern tree objc_is_id (tree); 894extern void objc_declare_alias (tree, tree); 895extern void objc_declare_class (tree); 896extern void objc_declare_protocols (tree); 897extern tree objc_build_message_expr (tree); 898extern tree objc_finish_message_expr (tree, tree, tree); 899extern tree objc_build_selector_expr (tree); 900extern tree objc_build_protocol_expr (tree); 901extern tree objc_build_encode_expr (tree); 902extern tree objc_build_string_object (tree); 903extern tree objc_get_protocol_qualified_type (tree, tree); 904extern tree objc_get_class_reference (tree); 905extern tree objc_get_class_ivars (tree); 906extern void objc_start_class_interface (tree, tree, tree); 907extern void objc_start_category_interface (tree, tree, tree); 908extern void objc_start_protocol (tree, tree); 909extern void objc_continue_interface (void); 910extern void objc_finish_interface (void); 911extern void objc_start_class_implementation (tree, tree); 912extern void objc_start_category_implementation (tree, tree); 913extern void objc_continue_implementation (void); 914extern void objc_finish_implementation (void); 915extern void objc_set_visibility (int); 916extern void objc_set_method_type (enum tree_code); 917extern tree objc_build_method_signature (tree, tree, tree, bool); 918extern void objc_add_method_declaration (tree); 919extern void objc_start_method_definition (tree); 920extern void objc_finish_method_definition (tree); 921extern void objc_add_instance_variable (tree); 922extern tree objc_build_keyword_decl (tree, tree, tree); 923extern tree objc_build_throw_stmt (tree); 924extern void objc_begin_try_stmt (location_t, tree); 925extern tree objc_finish_try_stmt (void); 926extern void objc_begin_catch_clause (tree); 927extern void objc_finish_catch_clause (void); 928extern void objc_build_finally_clause (location_t, tree); 929extern tree objc_build_synchronized (location_t, tree, tree); 930extern int objc_static_init_needed_p (void); 931extern tree objc_generate_static_init_call (tree); 932extern tree objc_generate_write_barrier (tree, enum tree_code, tree); 933 934/* The following are provided by the C and C++ front-ends, and called by 935 ObjC/ObjC++. */ 936extern void *objc_get_current_scope (void); |
937extern void objc_mark_locals_volatile (void *); 938 939/* In c-ppoutput.c */ 940extern void init_pp_output (FILE *); 941extern void preprocess_file (cpp_reader *); 942extern void pp_file_change (const struct line_map *); 943extern void pp_dir_change (cpp_reader *, const char *);
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944extern bool check_missing_format_attribute (tree, tree); |
945
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946/* In c-omp.c */ 947extern tree c_finish_omp_master (tree); 948extern tree c_finish_omp_critical (tree, tree); 949extern tree c_finish_omp_ordered (tree); 950extern void c_finish_omp_barrier (void); 951extern tree c_finish_omp_atomic (enum tree_code, tree, tree); 952extern void c_finish_omp_flush (void); 953extern tree c_finish_omp_for (location_t, tree, tree, tree, tree, tree, tree); 954extern void c_split_parallel_clauses (tree, tree *, tree *); 955extern enum omp_clause_default_kind c_omp_predetermined_sharing (tree); 956 957/* Not in c-omp.c; provided by the front end. */ 958extern bool c_omp_sharing_predetermined (tree); 959extern tree c_omp_remap_decl (tree, bool); 960 961/* In order for the format checking to accept the C frontend 962 diagnostic framework extensions, you must include this file before 963 toplev.h, not after. The C front end formats are a subset of those 964 for C++, so they are the appropriate set to use in common code; 965 cp-tree.h overrides this for C++. */ 966#ifndef GCC_DIAG_STYLE 967#define GCC_DIAG_STYLE __gcc_cdiag__ 968#endif 969 |
970#endif /* ! GCC_C_COMMON_H */
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