mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
42eb4c1088
1.2 framework for our kernel printf enhancements. 1.3 suppress prototype warnings on K&R main. Both flag variables declared here were disconnected through the 5-current lifetime and are retained here for backwards compatibility reasons only.
1334 lines
45 KiB
Objective-C
1334 lines
45 KiB
Objective-C
/* Definitions for c-common.c.
|
||
Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
|
||
1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
|
||
|
||
This file is part of GCC.
|
||
|
||
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.
|
||
|
||
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 GCC; see the file COPYING. If not, write to the Free
|
||
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
|
||
02111-1307, USA. */
|
||
|
||
#ifndef GCC_C_COMMON_H
|
||
#define GCC_C_COMMON_H
|
||
|
||
#include "splay-tree.h"
|
||
#include "cpplib.h"
|
||
#include "ggc.h"
|
||
|
||
/* Usage of TREE_LANG_FLAG_?:
|
||
0: COMPOUND_STMT_NO_SCOPE (in COMPOUND_STMT).
|
||
TREE_NEGATED_INT (in INTEGER_CST).
|
||
IDENTIFIER_MARKED (used by search routines).
|
||
SCOPE_BEGIN_P (in SCOPE_STMT)
|
||
DECL_PRETTY_FUNCTION_P (in VAR_DECL)
|
||
NEW_FOR_SCOPE_P (in FOR_STMT)
|
||
ASM_INPUT_P (in ASM_STMT)
|
||
STMT_EXPR_NO_SCOPE (in STMT_EXPR)
|
||
1: C_DECLARED_LABEL_FLAG (in LABEL_DECL)
|
||
STMT_IS_FULL_EXPR_P (in _STMT)
|
||
2: STMT_LINENO_FOR_FN_P (in _STMT)
|
||
3: SCOPE_NO_CLEANUPS_P (in SCOPE_STMT)
|
||
COMPOUND_STMT_BODY_BLOCK (in COMPOUND_STMT)
|
||
STMT_EXPR_WARN_UNUSED_RESULT (in STMT_EXPR)
|
||
4: SCOPE_PARTIAL_P (in SCOPE_STMT)
|
||
*/
|
||
|
||
/* Reserved identifiers. This is the union of all the keywords for C,
|
||
C++, and Objective-C. All the type modifiers have to be in one
|
||
block at the beginning, because they are used as mask bits. There
|
||
are 27 type modifiers; if we add many more we will have to redesign
|
||
the mask mechanism. */
|
||
|
||
enum rid
|
||
{
|
||
/* Modifiers: */
|
||
/* C, in empirical order of frequency. */
|
||
RID_STATIC = 0,
|
||
RID_UNSIGNED, RID_LONG, RID_CONST, RID_EXTERN,
|
||
RID_REGISTER, RID_TYPEDEF, RID_SHORT, RID_INLINE,
|
||
RID_VOLATILE, RID_SIGNED, RID_AUTO, RID_RESTRICT,
|
||
|
||
/* C extensions */
|
||
RID_COMPLEX, RID_THREAD,
|
||
|
||
/* C++ */
|
||
RID_FRIEND, RID_VIRTUAL, RID_EXPLICIT, RID_EXPORT, RID_MUTABLE,
|
||
|
||
/* ObjC */
|
||
RID_IN, RID_OUT, RID_INOUT, RID_BYCOPY, RID_BYREF, RID_ONEWAY,
|
||
|
||
/* C */
|
||
RID_INT, RID_CHAR, RID_FLOAT, RID_DOUBLE, RID_VOID,
|
||
RID_ENUM, RID_STRUCT, RID_UNION, RID_IF, RID_ELSE,
|
||
RID_WHILE, RID_DO, RID_FOR, RID_SWITCH, RID_CASE,
|
||
RID_DEFAULT, RID_BREAK, RID_CONTINUE, RID_RETURN, RID_GOTO,
|
||
RID_SIZEOF,
|
||
|
||
/* C extensions */
|
||
RID_ASM, RID_TYPEOF, RID_ALIGNOF, RID_ATTRIBUTE, RID_VA_ARG,
|
||
RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_PTRBASE,
|
||
RID_PTREXTENT, RID_PTRVALUE, RID_CHOOSE_EXPR, RID_TYPES_COMPATIBLE_P,
|
||
|
||
/* Too many ways of getting the name of a function as a string */
|
||
RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME,
|
||
|
||
/* C++ */
|
||
RID_BOOL, RID_WCHAR, RID_CLASS,
|
||
RID_PUBLIC, RID_PRIVATE, RID_PROTECTED,
|
||
RID_TEMPLATE, RID_NULL, RID_CATCH,
|
||
RID_DELETE, RID_FALSE, RID_NAMESPACE,
|
||
RID_NEW, RID_OFFSETOF, RID_OPERATOR,
|
||
RID_THIS, RID_THROW, RID_TRUE,
|
||
RID_TRY, RID_TYPENAME, RID_TYPEID,
|
||
RID_USING,
|
||
|
||
/* casts */
|
||
RID_CONSTCAST, RID_DYNCAST, RID_REINTCAST, RID_STATCAST,
|
||
|
||
/* Objective-C */
|
||
RID_ID, RID_AT_ENCODE, RID_AT_END,
|
||
RID_AT_CLASS, RID_AT_ALIAS, RID_AT_DEFS,
|
||
RID_AT_PRIVATE, RID_AT_PROTECTED, RID_AT_PUBLIC,
|
||
RID_AT_PROTOCOL, RID_AT_SELECTOR,
|
||
RID_AT_THROW, RID_AT_TRY, RID_AT_CATCH,
|
||
RID_AT_FINALLY, RID_AT_SYNCHRONIZED,
|
||
RID_AT_INTERFACE,
|
||
RID_AT_IMPLEMENTATION,
|
||
|
||
RID_MAX,
|
||
|
||
RID_FIRST_MODIFIER = RID_STATIC,
|
||
RID_LAST_MODIFIER = RID_ONEWAY,
|
||
|
||
RID_FIRST_AT = RID_AT_ENCODE,
|
||
RID_LAST_AT = RID_AT_IMPLEMENTATION,
|
||
RID_FIRST_PQ = RID_IN,
|
||
RID_LAST_PQ = RID_ONEWAY
|
||
};
|
||
|
||
#define OBJC_IS_AT_KEYWORD(rid) \
|
||
((unsigned int)(rid) >= (unsigned int)RID_FIRST_AT && \
|
||
(unsigned int)(rid) <= (unsigned int)RID_LAST_AT)
|
||
|
||
#define OBJC_IS_PQ_KEYWORD(rid) \
|
||
((unsigned int)(rid) >= (unsigned int)RID_FIRST_PQ && \
|
||
(unsigned int)(rid) <= (unsigned int)RID_LAST_PQ)
|
||
|
||
/* The elements of `ridpointers' are identifier nodes for the reserved
|
||
type names and storage classes. It is indexed by a RID_... value. */
|
||
extern GTY ((length ("(int)RID_MAX"))) tree *ridpointers;
|
||
|
||
/* Standard named or nameless data types of the C compiler. */
|
||
|
||
enum c_tree_index
|
||
{
|
||
CTI_WCHAR_TYPE,
|
||
CTI_SIGNED_WCHAR_TYPE,
|
||
CTI_UNSIGNED_WCHAR_TYPE,
|
||
CTI_WINT_TYPE,
|
||
CTI_SIGNED_SIZE_TYPE, /* For format checking only. */
|
||
CTI_UNSIGNED_PTRDIFF_TYPE, /* For format checking only. */
|
||
CTI_INTMAX_TYPE,
|
||
CTI_UINTMAX_TYPE,
|
||
CTI_WIDEST_INT_LIT_TYPE,
|
||
CTI_WIDEST_UINT_LIT_TYPE,
|
||
|
||
CTI_CHAR_ARRAY_TYPE,
|
||
CTI_WCHAR_ARRAY_TYPE,
|
||
CTI_INT_ARRAY_TYPE,
|
||
CTI_STRING_TYPE,
|
||
CTI_CONST_STRING_TYPE,
|
||
|
||
/* Type for boolean expressions (bool in C++, int in C). */
|
||
CTI_TRUTHVALUE_TYPE,
|
||
CTI_TRUTHVALUE_TRUE,
|
||
CTI_TRUTHVALUE_FALSE,
|
||
|
||
CTI_DEFAULT_FUNCTION_TYPE,
|
||
|
||
CTI_G77_INTEGER_TYPE,
|
||
CTI_G77_UINTEGER_TYPE,
|
||
CTI_G77_LONGINT_TYPE,
|
||
CTI_G77_ULONGINT_TYPE,
|
||
|
||
/* These are not types, but we have to look them up all the time. */
|
||
CTI_FUNCTION_NAME_DECL,
|
||
CTI_PRETTY_FUNCTION_NAME_DECL,
|
||
CTI_C99_FUNCTION_NAME_DECL,
|
||
CTI_SAVED_FUNCTION_NAME_DECLS,
|
||
|
||
CTI_VOID_ZERO,
|
||
|
||
CTI_MAX
|
||
};
|
||
|
||
#define C_RID_CODE(id) (((struct c_common_identifier *) (id))->node.rid_code)
|
||
|
||
/* Identifier part common to the C front ends. Inherits from
|
||
tree_identifier, despite appearances. */
|
||
struct c_common_identifier GTY(())
|
||
{
|
||
struct tree_common common;
|
||
struct cpp_hashnode node;
|
||
};
|
||
|
||
#define wchar_type_node c_global_trees[CTI_WCHAR_TYPE]
|
||
#define signed_wchar_type_node c_global_trees[CTI_SIGNED_WCHAR_TYPE]
|
||
#define unsigned_wchar_type_node c_global_trees[CTI_UNSIGNED_WCHAR_TYPE]
|
||
#define wint_type_node c_global_trees[CTI_WINT_TYPE]
|
||
#define signed_size_type_node c_global_trees[CTI_SIGNED_SIZE_TYPE]
|
||
#define unsigned_ptrdiff_type_node c_global_trees[CTI_UNSIGNED_PTRDIFF_TYPE]
|
||
#define intmax_type_node c_global_trees[CTI_INTMAX_TYPE]
|
||
#define uintmax_type_node c_global_trees[CTI_UINTMAX_TYPE]
|
||
#define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE]
|
||
#define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE]
|
||
|
||
#define truthvalue_type_node c_global_trees[CTI_TRUTHVALUE_TYPE]
|
||
#define truthvalue_true_node c_global_trees[CTI_TRUTHVALUE_TRUE]
|
||
#define truthvalue_false_node c_global_trees[CTI_TRUTHVALUE_FALSE]
|
||
|
||
#define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE]
|
||
#define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE]
|
||
#define int_array_type_node c_global_trees[CTI_INT_ARRAY_TYPE]
|
||
#define string_type_node c_global_trees[CTI_STRING_TYPE]
|
||
#define const_string_type_node c_global_trees[CTI_CONST_STRING_TYPE]
|
||
|
||
#define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE]
|
||
|
||
/* g77 integer types, which which must be kept in sync with f/com.h */
|
||
#define g77_integer_type_node c_global_trees[CTI_G77_INTEGER_TYPE]
|
||
#define g77_uinteger_type_node c_global_trees[CTI_G77_UINTEGER_TYPE]
|
||
#define g77_longint_type_node c_global_trees[CTI_G77_LONGINT_TYPE]
|
||
#define g77_ulongint_type_node c_global_trees[CTI_G77_ULONGINT_TYPE]
|
||
|
||
#define function_name_decl_node c_global_trees[CTI_FUNCTION_NAME_DECL]
|
||
#define pretty_function_name_decl_node c_global_trees[CTI_PRETTY_FUNCTION_NAME_DECL]
|
||
#define c99_function_name_decl_node c_global_trees[CTI_C99_FUNCTION_NAME_DECL]
|
||
#define saved_function_name_decls c_global_trees[CTI_SAVED_FUNCTION_NAME_DECLS]
|
||
|
||
/* A node for `((void) 0)'. */
|
||
#define void_zero_node c_global_trees[CTI_VOID_ZERO]
|
||
|
||
extern GTY(()) tree c_global_trees[CTI_MAX];
|
||
|
||
/* In a RECORD_TYPE, a sorted array of the fields of the type, not a
|
||
tree for size reasons. */
|
||
struct sorted_fields_type GTY(())
|
||
{
|
||
int len;
|
||
tree GTY((length ("%h.len"))) elts[1];
|
||
};
|
||
|
||
/* Mark which labels are explicitly declared.
|
||
These may be shadowed, and may be referenced from nested functions. */
|
||
#define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label)
|
||
|
||
/* Flag strings given by __FUNCTION__ and __PRETTY_FUNCTION__ for a
|
||
warning if they undergo concatenation. */
|
||
#define C_ARTIFICIAL_STRING_P(NODE) TREE_LANG_FLAG_0 (NODE)
|
||
|
||
typedef enum c_language_kind
|
||
{
|
||
clk_c = 0, /* C90, C94 or C99 */
|
||
clk_objc = 1, /* clk_c with ObjC features. */
|
||
clk_cxx = 2, /* ANSI/ISO C++ */
|
||
clk_objcxx = 3 /* clk_cxx with ObjC features. */
|
||
}
|
||
c_language_kind;
|
||
|
||
/* To test for a specific language use c_language, defined by each
|
||
front end. For "ObjC features" or "not C++" use the macros. */
|
||
extern c_language_kind c_language;
|
||
|
||
#define c_dialect_cxx() (c_language & clk_cxx)
|
||
#define c_dialect_objc() (c_language & clk_objc)
|
||
|
||
/* Information about a statement tree. */
|
||
|
||
struct stmt_tree_s GTY(()) {
|
||
/* The last statement added to the tree. */
|
||
tree x_last_stmt;
|
||
/* The type of the last expression statement. (This information is
|
||
needed to implement the statement-expression extension.) */
|
||
tree x_last_expr_type;
|
||
/* The last filename we recorded. */
|
||
const char *x_last_expr_filename;
|
||
/* In C++, Nonzero if we should treat statements as full
|
||
expressions. In particular, this variable is no-zero if at the
|
||
end of a statement we should destroy any temporaries created
|
||
during that statement. Similarly, if, at the end of a block, we
|
||
should destroy any local variables in this block. Normally, this
|
||
variable is nonzero, since those are the normal semantics of
|
||
C++.
|
||
|
||
However, in order to represent aggregate initialization code as
|
||
tree structure, we use statement-expressions. The statements
|
||
within the statement expression should not result in cleanups
|
||
being run until the entire enclosing statement is complete.
|
||
|
||
This flag has no effect in C. */
|
||
int stmts_are_full_exprs_p;
|
||
};
|
||
|
||
typedef struct stmt_tree_s *stmt_tree;
|
||
|
||
/* Global state pertinent to the current function. Some C dialects
|
||
extend this structure with additional fields. */
|
||
|
||
struct c_language_function GTY(()) {
|
||
/* While we are parsing the function, this contains information
|
||
about the statement-tree that we are building. */
|
||
struct stmt_tree_s x_stmt_tree;
|
||
/* The stack of SCOPE_STMTs for the current function. */
|
||
tree x_scope_stmt_stack;
|
||
};
|
||
|
||
/* When building a statement-tree, this is the last statement added to
|
||
the tree. */
|
||
|
||
#define last_tree (current_stmt_tree ()->x_last_stmt)
|
||
|
||
/* The type of the last expression-statement we have seen. */
|
||
|
||
#define last_expr_type (current_stmt_tree ()->x_last_expr_type)
|
||
|
||
/* The name of the last file we have seen. */
|
||
|
||
#define last_expr_filename (current_stmt_tree ()->x_last_expr_filename)
|
||
|
||
/* LAST_TREE contains the last statement parsed. These are chained
|
||
together through the TREE_CHAIN field, but often need to be
|
||
re-organized since the parse is performed bottom-up. This macro
|
||
makes LAST_TREE the indicated SUBSTMT of STMT. */
|
||
|
||
#define RECHAIN_STMTS(stmt, substmt) \
|
||
do { \
|
||
substmt = TREE_CHAIN (stmt); \
|
||
TREE_CHAIN (stmt) = NULL_TREE; \
|
||
last_tree = stmt; \
|
||
} while (0)
|
||
|
||
/* Language-specific hooks. */
|
||
|
||
extern void (*lang_expand_stmt) (tree);
|
||
extern void (*lang_expand_decl_stmt) (tree);
|
||
extern void (*lang_expand_function_end) (void);
|
||
|
||
/* Callback that determines if it's ok for a function to have no
|
||
noreturn attribute. */
|
||
extern int (*lang_missing_noreturn_ok_p) (tree);
|
||
|
||
extern int yyparse (void);
|
||
extern stmt_tree current_stmt_tree (void);
|
||
extern tree *current_scope_stmt_stack (void);
|
||
extern void begin_stmt_tree (tree *);
|
||
extern tree add_stmt (tree);
|
||
extern void add_decl_stmt (tree);
|
||
extern tree add_scope_stmt (int, int);
|
||
extern void finish_stmt_tree (tree *);
|
||
|
||
extern tree walk_stmt_tree (tree *, walk_tree_fn, void *);
|
||
extern void prep_stmt (tree);
|
||
extern void expand_stmt (tree);
|
||
extern tree c_begin_if_stmt (void);
|
||
extern tree c_begin_while_stmt (void);
|
||
extern void c_finish_while_stmt_cond (tree, tree);
|
||
|
||
extern int field_decl_cmp (const void *, const void *);
|
||
extern void resort_sorted_fields (void *, void *, gt_pointer_operator,
|
||
void *);
|
||
|
||
/* Switches common to the C front ends. */
|
||
|
||
/* Nonzero if prepreprocessing only. */
|
||
|
||
extern int flag_preprocess_only;
|
||
|
||
/* Zero means that faster, ...NonNil variants of objc_msgSend...
|
||
calls will be used in ObjC; passing nil receivers to such calls
|
||
will most likely result in crashes. */
|
||
extern int flag_nil_receivers;
|
||
|
||
/* Nonzero means that we will allow new ObjC exception syntax (@throw,
|
||
@try, etc.) in source code. */
|
||
extern int flag_objc_exceptions;
|
||
|
||
/* Nonzero means that code generation will be altered to support
|
||
"zero-link" execution. This currently affects ObjC only, but may
|
||
affect other languages in the future. */
|
||
extern int flag_zero_link;
|
||
|
||
/* Nonzero means emit an '__OBJC, __image_info' for the current translation
|
||
unit. It will inform the ObjC runtime that class definition(s) herein
|
||
contained are to replace one(s) previously loaded. */
|
||
extern int flag_replace_objc_classes;
|
||
|
||
/* Nonzero means don't output line number information. */
|
||
|
||
extern char flag_no_line_commands;
|
||
|
||
/* Nonzero causes -E output not to be done, but directives such as
|
||
#define that have side effects are still obeyed. */
|
||
|
||
extern char flag_no_output;
|
||
|
||
/* Nonzero means dump macros in some fashion; contains the 'D', 'M' or
|
||
'N' of the command line switch. */
|
||
|
||
extern char flag_dump_macros;
|
||
|
||
/* Nonzero means pass #include lines through to the output. */
|
||
|
||
extern char flag_dump_includes;
|
||
|
||
/* The file name to which we should write a precompiled header, or
|
||
NULL if no header will be written in this compile. */
|
||
|
||
extern const char *pch_file;
|
||
|
||
/* Nonzero if an ISO standard was selected. It rejects macros in the
|
||
user's namespace. */
|
||
|
||
extern int flag_iso;
|
||
|
||
/* Nonzero if -undef was given. It suppresses target built-in macros
|
||
and assertions. */
|
||
|
||
extern int flag_undef;
|
||
|
||
/* Nonzero means don't recognize the non-ANSI builtin functions. */
|
||
|
||
extern int flag_no_builtin;
|
||
|
||
/* Nonzero means don't recognize the non-ANSI builtin functions.
|
||
-ansi sets this. */
|
||
|
||
extern int flag_no_nonansi_builtin;
|
||
|
||
/* Nonzero means give `double' the same size as `float'. */
|
||
|
||
extern int flag_short_double;
|
||
|
||
/* Nonzero means give `wchar_t' the same size as `short'. */
|
||
|
||
extern int flag_short_wchar;
|
||
|
||
/* Nonzero means allow Microsoft extensions without warnings or errors. */
|
||
extern int flag_ms_extensions;
|
||
|
||
/* Nonzero means don't recognize the keyword `asm'. */
|
||
|
||
extern int flag_no_asm;
|
||
|
||
/* Nonzero means give string constants the type `const char *', as mandated
|
||
by the standard. */
|
||
|
||
extern int flag_const_strings;
|
||
|
||
/* Nonzero means to treat bitfields as signed unless they say `unsigned'. */
|
||
|
||
extern int flag_signed_bitfields;
|
||
extern int explicit_flag_signed_bitfields;
|
||
|
||
/* Nonzero means warn about pointer casts that can drop a type qualifier
|
||
from the pointer target type. */
|
||
|
||
extern int warn_cast_qual;
|
||
|
||
/* Warn about functions which might be candidates for format attributes. */
|
||
|
||
extern int warn_missing_format_attribute;
|
||
|
||
/* Nonzero means do not warn that K&R style main() is not a function prototype. */
|
||
extern int flag_bsd_no_warn_kr_main;
|
||
|
||
/* Nonzero means warn about sizeof(function) or addition/subtraction
|
||
of function pointers. */
|
||
|
||
extern int warn_pointer_arith;
|
||
|
||
/* Nonzero means warn for any global function def
|
||
without separate previous prototype decl. */
|
||
|
||
extern int warn_missing_prototypes;
|
||
|
||
/* Warn if adding () is suggested. */
|
||
|
||
extern int warn_parentheses;
|
||
|
||
/* Warn if initializer is not completely bracketed. */
|
||
|
||
extern int warn_missing_braces;
|
||
|
||
/* Warn about comparison of signed and unsigned values.
|
||
If -1, neither -Wsign-compare nor -Wno-sign-compare has been specified. */
|
||
|
||
extern int warn_sign_compare;
|
||
|
||
/* Nonzero means warn about usage of long long when `-pedantic'. */
|
||
|
||
extern int warn_long_long;
|
||
|
||
/* Nonzero means warn about deprecated conversion from string constant to
|
||
`char *'. */
|
||
|
||
extern int warn_write_strings;
|
||
|
||
/* Nonzero means warn about multiple (redundant) decls for the same single
|
||
variable or function. */
|
||
|
||
extern int warn_redundant_decls;
|
||
|
||
/* Warn about testing equality of floating point numbers. */
|
||
|
||
extern int warn_float_equal;
|
||
|
||
/* Warn about a subscript that has type char. */
|
||
|
||
extern int warn_char_subscripts;
|
||
|
||
/* Warn if a type conversion is done that might have confusing results. */
|
||
|
||
extern int warn_conversion;
|
||
|
||
/* Warn about #pragma directives that are not recognized. */
|
||
|
||
extern int warn_unknown_pragmas; /* Tri state variable. */
|
||
|
||
/* Warn about format/argument anomalies in calls to formatted I/O functions
|
||
(*printf, *scanf, strftime, strfmon, etc.). */
|
||
|
||
extern int warn_format;
|
||
|
||
/* Warn about Y2K problems with strftime formats. */
|
||
|
||
extern int warn_format_y2k;
|
||
|
||
/* Warn about excess arguments to formats. */
|
||
|
||
extern int warn_format_extra_args;
|
||
|
||
/* Warn about zero-length formats. */
|
||
|
||
extern int warn_format_zero_length;
|
||
|
||
/* Warn about non-literal format arguments. */
|
||
|
||
extern int warn_format_nonliteral;
|
||
|
||
/* Warn about possible security problems with calls to format functions. */
|
||
|
||
extern int warn_format_security;
|
||
|
||
|
||
/* C/ObjC language option variables. */
|
||
|
||
|
||
/* Nonzero means message about use of implicit function declarations;
|
||
1 means warning; 2 means error. */
|
||
|
||
extern int mesg_implicit_function_declaration;
|
||
|
||
/* Nonzero means allow type mismatches in conditional expressions;
|
||
just make their values `void'. */
|
||
|
||
extern int flag_cond_mismatch;
|
||
|
||
/* Nonzero means enable C89 Amendment 1 features. */
|
||
|
||
extern int flag_isoc94;
|
||
|
||
/* Nonzero means use the ISO C99 dialect of C. */
|
||
|
||
extern int flag_isoc99;
|
||
|
||
/* Nonzero means allow the BSD kernel printf enhancments. */
|
||
|
||
extern int flag_bsd_format;
|
||
|
||
/* Nonzero means that we have builtin functions, and main is an int. */
|
||
|
||
extern int flag_hosted;
|
||
|
||
/* Nonzero means warn when casting a function call to a type that does
|
||
not match the return type (e.g. (float)sqrt() or (anything*)malloc()
|
||
when there is no previous declaration of sqrt or malloc. */
|
||
|
||
extern int warn_bad_function_cast;
|
||
|
||
/* Warn about traditional constructs whose meanings changed in ANSI C. */
|
||
|
||
extern int warn_traditional;
|
||
|
||
/* Nonzero means warn for a declaration found after a statement. */
|
||
|
||
extern int warn_declaration_after_statement;
|
||
|
||
/* Nonzero means warn for non-prototype function decls
|
||
or non-prototyped defs without previous prototype. */
|
||
|
||
extern int warn_strict_prototypes;
|
||
|
||
/* Nonzero means warn for any global function def
|
||
without separate previous decl. */
|
||
|
||
extern int warn_missing_declarations;
|
||
|
||
/* Nonzero means warn about extern declarations of objects not at
|
||
file-scope level and about *all* declarations of functions (whether
|
||
extern or static) not at file-scope level. Note that we exclude
|
||
implicit function declarations. To get warnings about those, use
|
||
-Wimplicit. */
|
||
|
||
extern int warn_nested_externs;
|
||
|
||
/* Warn if main is suspicious. */
|
||
|
||
extern int warn_main;
|
||
|
||
/* Nonzero means warn about possible violations of sequence point rules. */
|
||
|
||
extern int warn_sequence_point;
|
||
|
||
/* Nonzero means warn about uninitialized variable when it is initialized with itself.
|
||
For example: int i = i;, GCC will not warn about this when warn_init_self is nonzero. */
|
||
|
||
extern int warn_init_self;
|
||
|
||
|
||
/* Nonzero means to warn about compile-time division by zero. */
|
||
extern int warn_div_by_zero;
|
||
|
||
/* Nonzero means warn about use of implicit int. */
|
||
|
||
extern int warn_implicit_int;
|
||
|
||
/* Warn about NULL being passed to argument slots marked as requiring
|
||
non-NULL. */
|
||
|
||
extern int warn_nonnull;
|
||
|
||
/* Warn about old-style parameter declaration. */
|
||
|
||
extern int warn_old_style_definition;
|
||
|
||
|
||
/* ObjC language option variables. */
|
||
|
||
|
||
/* Open and close the file for outputting class declarations, if
|
||
requested (ObjC). */
|
||
|
||
extern int flag_gen_declaration;
|
||
|
||
/* Generate code for GNU or NeXT runtime environment. */
|
||
|
||
extern int flag_next_runtime;
|
||
|
||
/* Tells the compiler that this is a special run. Do not perform any
|
||
compiling, instead we are to test some platform dependent features
|
||
and output a C header file with appropriate definitions. */
|
||
|
||
extern int print_struct_values;
|
||
|
||
/* ???. Undocumented. */
|
||
|
||
extern const char *constant_string_class_name;
|
||
|
||
/* Warn if multiple methods are seen for the same selector, but with
|
||
different argument types. Performs the check on the whole selector
|
||
table at the end of compilation. */
|
||
|
||
extern int warn_selector;
|
||
|
||
/* Warn if a @selector() is found, and no method with that selector
|
||
has been previously declared. The check is done on each
|
||
@selector() as soon as it is found - so it warns about forward
|
||
declarations. */
|
||
|
||
extern int warn_undeclared_selector;
|
||
|
||
/* Warn if methods required by a protocol are not implemented in the
|
||
class adopting it. When turned off, methods inherited to that
|
||
class are also considered implemented. */
|
||
|
||
extern int warn_protocol;
|
||
|
||
|
||
/* C++ language option variables. */
|
||
|
||
|
||
/* Nonzero means don't recognize any extension keywords. */
|
||
|
||
extern int flag_no_gnu_keywords;
|
||
|
||
/* Nonzero means do emit exported implementations of functions even if
|
||
they can be inlined. */
|
||
|
||
extern int flag_implement_inlines;
|
||
|
||
/* Nonzero means that implicit instantiations will be emitted if needed. */
|
||
|
||
extern int flag_implicit_templates;
|
||
|
||
/* Nonzero means that implicit instantiations of inline templates will be
|
||
emitted if needed, even if instantiations of non-inline templates
|
||
aren't. */
|
||
|
||
extern int flag_implicit_inline_templates;
|
||
|
||
/* Nonzero means generate separate instantiation control files and
|
||
juggle them at link time. */
|
||
|
||
extern int flag_use_repository;
|
||
|
||
/* Nonzero if we want to issue diagnostics that the standard says are not
|
||
required. */
|
||
|
||
extern int flag_optional_diags;
|
||
|
||
/* Nonzero means we should attempt to elide constructors when possible. */
|
||
|
||
extern int flag_elide_constructors;
|
||
|
||
/* Nonzero means that member functions defined in class scope are
|
||
inline by default. */
|
||
|
||
extern int flag_default_inline;
|
||
|
||
/* Controls whether compiler generates 'type descriptor' that give
|
||
run-time type information. */
|
||
|
||
extern int flag_rtti;
|
||
|
||
/* Nonzero if we want to conserve space in the .o files. We do this
|
||
by putting uninitialized data and runtime initialized data into
|
||
.common instead of .data at the expense of not flagging multiple
|
||
definitions. */
|
||
|
||
extern int flag_conserve_space;
|
||
|
||
/* Nonzero if we want to obey access control semantics. */
|
||
|
||
extern int flag_access_control;
|
||
|
||
/* Nonzero if we want to check the return value of new and avoid calling
|
||
constructors if it is a null pointer. */
|
||
|
||
extern int flag_check_new;
|
||
|
||
/* Nonzero if we want the new ISO rules for pushing a new scope for `for'
|
||
initialization variables.
|
||
0: Old rules, set by -fno-for-scope.
|
||
2: New ISO rules, set by -ffor-scope.
|
||
1: Try to implement new ISO rules, but with backup compatibility
|
||
(and warnings). This is the default, for now. */
|
||
|
||
extern int flag_new_for_scope;
|
||
|
||
/* Nonzero if we want to emit defined symbols with common-like linkage as
|
||
weak symbols where possible, in order to conform to C++ semantics.
|
||
Otherwise, emit them as local symbols. */
|
||
|
||
extern int flag_weak;
|
||
|
||
/* 0 means we want the preprocessor to not emit line directives for
|
||
the current working directory. 1 means we want it to do it. -1
|
||
means we should decide depending on whether debugging information
|
||
is being emitted or not. */
|
||
|
||
extern int flag_working_directory;
|
||
|
||
/* Nonzero to use __cxa_atexit, rather than atexit, to register
|
||
destructors for local statics and global objects. */
|
||
|
||
extern int flag_use_cxa_atexit;
|
||
|
||
/* Nonzero means make the default pedwarns warnings instead of errors.
|
||
The value of this flag is ignored if -pedantic is specified. */
|
||
|
||
extern int flag_permissive;
|
||
|
||
/* Nonzero means to implement standard semantics for exception
|
||
specifications, calling unexpected if an exception is thrown that
|
||
doesn't match the specification. Zero means to treat them as
|
||
assertions and optimize accordingly, but not check them. */
|
||
|
||
extern int flag_enforce_eh_specs;
|
||
|
||
/* Nonzero means warn about things that will change when compiling
|
||
with an ABI-compliant compiler. */
|
||
|
||
extern int warn_abi;
|
||
|
||
/* Nonzero means warn about invalid uses of offsetof. */
|
||
|
||
extern int warn_invalid_offsetof;
|
||
|
||
/* Nonzero means warn about implicit declarations. */
|
||
|
||
extern int warn_implicit;
|
||
|
||
/* Nonzero means warn when all ctors or dtors are private, and the class
|
||
has no friends. */
|
||
|
||
extern int warn_ctor_dtor_privacy;
|
||
|
||
/* Nonzero means warn in function declared in derived class has the
|
||
same name as a virtual in the base class, but fails to match the
|
||
type signature of any virtual function in the base class. */
|
||
|
||
extern int warn_overloaded_virtual;
|
||
|
||
/* Nonzero means warn when declaring a class that has a non virtual
|
||
destructor, when it really ought to have a virtual one. */
|
||
|
||
extern int warn_nonvdtor;
|
||
|
||
/* Nonzero means warn when the compiler will reorder code. */
|
||
|
||
extern int warn_reorder;
|
||
|
||
/* Nonzero means warn when synthesis behavior differs from Cfront's. */
|
||
|
||
extern int warn_synth;
|
||
|
||
/* Nonzero means warn when we convert a pointer to member function
|
||
into a pointer to (void or function). */
|
||
|
||
extern int warn_pmf2ptr;
|
||
|
||
/* Nonzero means warn about violation of some Effective C++ style rules. */
|
||
|
||
extern int warn_ecpp;
|
||
|
||
/* Nonzero means warn where overload resolution chooses a promotion from
|
||
unsigned to signed over a conversion to an unsigned of the same size. */
|
||
|
||
extern int warn_sign_promo;
|
||
|
||
/* Nonzero means warn when an old-style cast is used. */
|
||
|
||
extern int warn_old_style_cast;
|
||
|
||
/* Nonzero means warn when non-templatized friend functions are
|
||
declared within a template */
|
||
|
||
extern int warn_nontemplate_friend;
|
||
|
||
/* Nonzero means complain about deprecated features. */
|
||
|
||
extern int warn_deprecated;
|
||
|
||
/* Maximum template instantiation depth. This limit is rather
|
||
arbitrary, but it exists to limit the time it takes to notice
|
||
infinite template instantiations. */
|
||
|
||
extern int max_tinst_depth;
|
||
|
||
/* Nonzero means the expression being parsed will never be evaluated.
|
||
This is a count, since unevaluated expressions can nest. */
|
||
|
||
extern int skip_evaluation;
|
||
|
||
/* C types are partitioned into three subsets: object, function, and
|
||
incomplete types. */
|
||
#define C_TYPE_OBJECT_P(type) \
|
||
(TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type))
|
||
|
||
#define C_TYPE_INCOMPLETE_P(type) \
|
||
(TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type) == 0)
|
||
|
||
#define C_TYPE_FUNCTION_P(type) \
|
||
(TREE_CODE (type) == FUNCTION_TYPE)
|
||
|
||
/* For convenience we define a single macro to identify the class of
|
||
object or incomplete types. */
|
||
#define C_TYPE_OBJECT_OR_INCOMPLETE_P(type) \
|
||
(!C_TYPE_FUNCTION_P (type))
|
||
|
||
/* Record in each node resulting from a binary operator
|
||
what operator was specified for it. */
|
||
#define C_EXP_ORIGINAL_CODE(exp) ((enum tree_code) TREE_COMPLEXITY (exp))
|
||
|
||
/* Attribute table common to the C front ends. */
|
||
extern const struct attribute_spec c_common_attribute_table[];
|
||
extern const struct attribute_spec c_common_format_attribute_table[];
|
||
|
||
/* Pointer to function to lazily generate the VAR_DECL for __FUNCTION__ etc.
|
||
ID is the identifier to use, NAME is the string.
|
||
TYPE_DEP indicates whether it depends on type of the function or not
|
||
(i.e. __PRETTY_FUNCTION__). */
|
||
|
||
extern tree (*make_fname_decl) (tree, int);
|
||
|
||
extern tree identifier_global_value (tree);
|
||
extern void record_builtin_type (enum rid, const char *, tree);
|
||
extern tree build_void_list_node (void);
|
||
extern void start_fname_decls (void);
|
||
extern void finish_fname_decls (void);
|
||
extern const char *fname_as_string (int);
|
||
extern tree fname_decl (unsigned, tree);
|
||
|
||
extern void check_function_arguments (tree, tree);
|
||
extern void check_function_arguments_recurse (void (*)
|
||
(void *, tree,
|
||
unsigned HOST_WIDE_INT),
|
||
void *, tree,
|
||
unsigned HOST_WIDE_INT);
|
||
extern void check_function_format (int *, tree, tree);
|
||
extern void set_Wformat (int);
|
||
extern tree handle_format_attribute (tree *, tree, tree, int, bool *);
|
||
extern tree handle_format_arg_attribute (tree *, tree, tree, int, bool *);
|
||
extern int c_common_handle_option (size_t code, const char *arg, int value);
|
||
extern bool c_common_missing_argument (const char *opt, size_t code);
|
||
extern tree c_common_type_for_mode (enum machine_mode, int);
|
||
extern tree c_common_type_for_size (unsigned int, int);
|
||
extern tree c_common_unsigned_type (tree);
|
||
extern tree c_common_signed_type (tree);
|
||
extern tree c_common_signed_or_unsigned_type (int, tree);
|
||
extern tree c_common_truthvalue_conversion (tree);
|
||
extern void c_apply_type_quals_to_decl (int, tree);
|
||
extern tree c_sizeof_or_alignof_type (tree, enum tree_code, int);
|
||
extern tree c_alignof_expr (tree);
|
||
/* Print an error message for invalid operands to arith operation CODE.
|
||
NOP_EXPR is used as a special case (see truthvalue_conversion). */
|
||
extern void binary_op_error (enum tree_code);
|
||
#define my_friendly_assert(EXP, N) (void) \
|
||
(((EXP) == 0) ? (fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0) : 0)
|
||
|
||
extern tree c_expand_expr_stmt (tree);
|
||
extern void c_expand_start_cond (tree, int, tree);
|
||
extern void c_finish_then (void);
|
||
extern void c_expand_start_else (void);
|
||
extern void c_finish_else (void);
|
||
extern void c_expand_end_cond (void);
|
||
/* Validate the expression after `case' and apply default promotions. */
|
||
extern tree check_case_value (tree);
|
||
extern tree fix_string_type (tree);
|
||
struct varray_head_tag;
|
||
extern void constant_expression_warning (tree);
|
||
extern tree convert_and_check (tree, tree);
|
||
extern void overflow_warning (tree);
|
||
extern void unsigned_conversion_warning (tree, tree);
|
||
|
||
/* Read the rest of the current #-directive line. */
|
||
extern char *get_directive_line (void);
|
||
#define GET_DIRECTIVE_LINE() get_directive_line ()
|
||
#define c_sizeof(T) c_sizeof_or_alignof_type (T, SIZEOF_EXPR, 1)
|
||
#define c_alignof(T) c_sizeof_or_alignof_type (T, ALIGNOF_EXPR, 1)
|
||
|
||
/* Subroutine of build_binary_op, used for comparison operations.
|
||
See if the operands have both been converted from subword integer types
|
||
and, if so, perhaps change them both back to their original type. */
|
||
extern tree shorten_compare (tree *, tree *, tree *, enum tree_code *);
|
||
|
||
extern tree pointer_int_sum (enum tree_code, tree, tree);
|
||
extern unsigned int min_precision (tree, int);
|
||
|
||
/* Add qualifiers to a type, in the fashion for C. */
|
||
extern tree c_build_qualified_type (tree, int);
|
||
|
||
/* Build tree nodes and builtin functions common to both C and C++ language
|
||
frontends. */
|
||
extern void c_common_nodes_and_builtins (void);
|
||
|
||
extern void disable_builtin_function (const char *);
|
||
|
||
extern tree build_va_arg (tree, tree);
|
||
|
||
extern unsigned int c_common_init_options (unsigned int, const char **);
|
||
extern bool c_common_post_options (const char **);
|
||
extern bool c_common_init (void);
|
||
extern void c_common_finish (void);
|
||
extern void c_common_parse_file (int);
|
||
extern HOST_WIDE_INT c_common_get_alias_set (tree);
|
||
extern void c_register_builtin_type (tree, const char*);
|
||
extern bool c_promoting_integer_type_p (tree);
|
||
extern int self_promoting_args_p (tree);
|
||
extern tree strip_array_types (tree);
|
||
extern tree strip_pointer_operator (tree);
|
||
|
||
/* This function resets the parsers' state in preparation for parsing
|
||
a new file. */
|
||
extern void c_reset_state (void);
|
||
/* This is the basic parsing function. */
|
||
extern void c_parse_file (void);
|
||
/* This is misnamed, it actually performs end-of-compilation processing. */
|
||
extern void finish_file (void);
|
||
|
||
/* These macros provide convenient access to the various _STMT nodes. */
|
||
|
||
/* Nonzero if this statement should be considered a full-expression,
|
||
i.e., if temporaries created during this statement should have
|
||
their destructors run at the end of this statement. (In C, this
|
||
will always be false, since there are no destructors.) */
|
||
#define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
|
||
|
||
/* IF_STMT accessors. These give access to the condition of the if
|
||
statement, the then block of the if statement, and the else block
|
||
of the if statement if it exists. */
|
||
#define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
|
||
#define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
|
||
#define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
|
||
|
||
/* WHILE_STMT accessors. These give access to the condition of the
|
||
while statement and the body of the while statement, respectively. */
|
||
#define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
|
||
#define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
|
||
|
||
/* DO_STMT accessors. These give access to the condition of the do
|
||
statement and the body of the do statement, respectively. */
|
||
#define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
|
||
#define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
|
||
|
||
/* RETURN_STMT accessors. These give the expression associated with a
|
||
return statement, and whether it should be ignored when expanding
|
||
(as opposed to inlining). */
|
||
#define RETURN_STMT_EXPR(NODE) TREE_OPERAND (RETURN_STMT_CHECK (NODE), 0)
|
||
|
||
/* EXPR_STMT accessor. This gives the expression associated with an
|
||
expression statement. */
|
||
#define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
|
||
|
||
/* FOR_STMT accessors. These give access to the init statement,
|
||
condition, update expression, and body of the for statement,
|
||
respectively. */
|
||
#define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
|
||
#define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
|
||
#define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
|
||
#define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
|
||
|
||
/* SWITCH_STMT accessors. These give access to the condition, body and
|
||
original condition type (before any compiler conversions)
|
||
of the switch statement, respectively. */
|
||
#define SWITCH_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
|
||
#define SWITCH_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
|
||
#define SWITCH_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
|
||
|
||
/* CASE_LABEL accessors. These give access to the high and low values
|
||
of a case label, respectively. */
|
||
#define CASE_LOW(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 0)
|
||
#define CASE_HIGH(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 1)
|
||
#define CASE_LABEL_DECL(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 2)
|
||
|
||
/* GOTO_STMT accessor. This gives access to the label associated with
|
||
a goto statement. */
|
||
#define GOTO_DESTINATION(NODE) TREE_OPERAND (GOTO_STMT_CHECK (NODE), 0)
|
||
/* True for goto created artificially by the compiler. */
|
||
#define GOTO_FAKE_P(NODE) (TREE_LANG_FLAG_0 (GOTO_STMT_CHECK (NODE)))
|
||
|
||
/* COMPOUND_STMT accessor. This gives access to the TREE_LIST of
|
||
statements associated with a compound statement. The result is the
|
||
first statement in the list. Succeeding nodes can be accessed by
|
||
calling TREE_CHAIN on a node in the list. */
|
||
#define COMPOUND_BODY(NODE) TREE_OPERAND (COMPOUND_STMT_CHECK (NODE), 0)
|
||
|
||
/* ASM_STMT accessors. ASM_STRING returns a STRING_CST for the
|
||
instruction (e.g., "mov x, y"). ASM_OUTPUTS, ASM_INPUTS, and
|
||
ASM_CLOBBERS represent the outputs, inputs, and clobbers for the
|
||
statement. */
|
||
#define ASM_CV_QUAL(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 0)
|
||
#define ASM_STRING(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 1)
|
||
#define ASM_OUTPUTS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 2)
|
||
#define ASM_INPUTS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 3)
|
||
#define ASM_CLOBBERS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 4)
|
||
|
||
/* DECL_STMT accessor. This gives access to the DECL associated with
|
||
the given declaration statement. */
|
||
#define DECL_STMT_DECL(NODE) TREE_OPERAND (DECL_STMT_CHECK (NODE), 0)
|
||
|
||
/* STMT_EXPR accessor. */
|
||
#define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
|
||
|
||
/* Nonzero if this statement-expression does not have an associated scope. */
|
||
#define STMT_EXPR_NO_SCOPE(NODE) \
|
||
TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
|
||
|
||
/* Nonzero if this statement-expression should cause warning if its result
|
||
is not used. */
|
||
#define STMT_EXPR_WARN_UNUSED_RESULT(NODE) \
|
||
TREE_LANG_FLAG_3 (STMT_EXPR_CHECK (NODE))
|
||
|
||
/* LABEL_STMT accessor. This gives access to the label associated with
|
||
the given label statement. */
|
||
#define LABEL_STMT_LABEL(NODE) TREE_OPERAND (LABEL_STMT_CHECK (NODE), 0)
|
||
|
||
/* COMPOUND_LITERAL_EXPR accessors. */
|
||
#define COMPOUND_LITERAL_EXPR_DECL_STMT(NODE) \
|
||
TREE_OPERAND (COMPOUND_LITERAL_EXPR_CHECK (NODE), 0)
|
||
#define COMPOUND_LITERAL_EXPR_DECL(NODE) \
|
||
DECL_STMT_DECL (COMPOUND_LITERAL_EXPR_DECL_STMT (NODE))
|
||
|
||
/* Nonzero if this SCOPE_STMT is for the beginning of a scope. */
|
||
#define SCOPE_BEGIN_P(NODE) \
|
||
(TREE_LANG_FLAG_0 (SCOPE_STMT_CHECK (NODE)))
|
||
|
||
/* Nonzero if this SCOPE_STMT is for the end of a scope. */
|
||
#define SCOPE_END_P(NODE) \
|
||
(!SCOPE_BEGIN_P (SCOPE_STMT_CHECK (NODE)))
|
||
|
||
/* The BLOCK containing the declarations contained in this scope. */
|
||
#define SCOPE_STMT_BLOCK(NODE) \
|
||
(TREE_OPERAND (SCOPE_STMT_CHECK (NODE), 0))
|
||
|
||
/* Nonzero for a SCOPE_STMT if there were no variables in this scope. */
|
||
#define SCOPE_NULLIFIED_P(NODE) \
|
||
(SCOPE_STMT_BLOCK ((NODE)) == NULL_TREE)
|
||
|
||
/* Nonzero for a SCOPE_STMT which represents a lexical scope, but
|
||
which should be treated as non-existent from the point of view of
|
||
running cleanup actions. */
|
||
#define SCOPE_NO_CLEANUPS_P(NODE) \
|
||
(TREE_LANG_FLAG_3 (SCOPE_STMT_CHECK (NODE)))
|
||
|
||
/* Nonzero for a SCOPE_STMT if this statement is for a partial scope.
|
||
For example, in:
|
||
|
||
S s;
|
||
l:
|
||
S s2;
|
||
goto l;
|
||
|
||
there is (implicitly) a new scope after `l', even though there are
|
||
no curly braces. In particular, when we hit the goto, we must
|
||
destroy s2 and then re-construct it. For the implicit scope,
|
||
SCOPE_PARTIAL_P will be set. */
|
||
#define SCOPE_PARTIAL_P(NODE) \
|
||
(TREE_LANG_FLAG_4 (SCOPE_STMT_CHECK (NODE)))
|
||
|
||
/* Nonzero for an ASM_STMT if the assembly statement is volatile. */
|
||
#define ASM_VOLATILE_P(NODE) \
|
||
(ASM_CV_QUAL (ASM_STMT_CHECK (NODE)) != NULL_TREE)
|
||
|
||
/* The VAR_DECL to clean up in a CLEANUP_STMT. */
|
||
#define CLEANUP_DECL(NODE) \
|
||
TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 0)
|
||
/* The cleanup to run in a CLEANUP_STMT. */
|
||
#define CLEANUP_EXPR(NODE) \
|
||
TREE_OPERAND (CLEANUP_STMT_CHECK (NODE), 1)
|
||
|
||
/* The filename we are changing to as of this FILE_STMT. */
|
||
#define FILE_STMT_FILENAME_NODE(NODE) \
|
||
(TREE_OPERAND (FILE_STMT_CHECK (NODE), 0))
|
||
#define FILE_STMT_FILENAME(NODE) \
|
||
(IDENTIFIER_POINTER (FILE_STMT_FILENAME_NODE (NODE)))
|
||
|
||
/* The line-number at which a statement began. But if
|
||
STMT_LINENO_FOR_FN_P does holds, then this macro gives the
|
||
line number for the end of the current function instead. */
|
||
#define STMT_LINENO(NODE) \
|
||
(TREE_COMPLEXITY ((NODE)))
|
||
|
||
/* If nonzero, the STMT_LINENO for NODE is the line at which the
|
||
function ended. */
|
||
#define STMT_LINENO_FOR_FN_P(NODE) \
|
||
(TREE_LANG_FLAG_2 ((NODE)))
|
||
|
||
/* Nonzero if we want the new ISO rules for pushing a new scope for `for'
|
||
initialization variables. */
|
||
#define NEW_FOR_SCOPE_P(NODE) (TREE_LANG_FLAG_0 (NODE))
|
||
|
||
/* Nonzero if we want to create an ASM_INPUT instead of an
|
||
ASM_OPERAND with no operands. */
|
||
#define ASM_INPUT_P(NODE) (TREE_LANG_FLAG_0 (NODE))
|
||
|
||
#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
|
||
|
||
enum c_tree_code {
|
||
C_DUMMY_TREE_CODE = LAST_AND_UNUSED_TREE_CODE,
|
||
#include "c-common.def"
|
||
LAST_C_TREE_CODE
|
||
};
|
||
|
||
#undef DEFTREECODE
|
||
|
||
#define c_common_stmt_codes \
|
||
CLEANUP_STMT, EXPR_STMT, COMPOUND_STMT, \
|
||
DECL_STMT, IF_STMT, FOR_STMT, \
|
||
WHILE_STMT, DO_STMT, RETURN_STMT, \
|
||
BREAK_STMT, CONTINUE_STMT, SCOPE_STMT, \
|
||
SWITCH_STMT, GOTO_STMT, LABEL_STMT, \
|
||
ASM_STMT, FILE_STMT, CASE_LABEL
|
||
|
||
/* TRUE if a code represents a statement. The front end init
|
||
langhook should take care of initialization of this array. */
|
||
extern bool statement_code_p[MAX_TREE_CODES];
|
||
|
||
#define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
|
||
|
||
#define INIT_STATEMENT_CODES(STMT_CODES) \
|
||
do { \
|
||
unsigned int i; \
|
||
memset (&statement_code_p, 0, sizeof (statement_code_p)); \
|
||
for (i = 0; i < ARRAY_SIZE (STMT_CODES); i++) \
|
||
statement_code_p[STMT_CODES[i]] = true; \
|
||
} while (0)
|
||
|
||
extern void genrtl_do_pushlevel (void);
|
||
extern void genrtl_goto_stmt (tree);
|
||
extern void genrtl_expr_stmt (tree);
|
||
extern void genrtl_expr_stmt_value (tree, int, int);
|
||
extern void genrtl_decl_stmt (tree);
|
||
extern void genrtl_if_stmt (tree);
|
||
extern void genrtl_while_stmt (tree);
|
||
extern void genrtl_do_stmt (tree);
|
||
extern void genrtl_return_stmt (tree);
|
||
extern void genrtl_for_stmt (tree);
|
||
extern void genrtl_break_stmt (void);
|
||
extern void genrtl_continue_stmt (void);
|
||
extern void genrtl_scope_stmt (tree);
|
||
extern void genrtl_switch_stmt (tree);
|
||
extern void genrtl_case_label (tree);
|
||
extern void genrtl_compound_stmt (tree);
|
||
extern void genrtl_asm_stmt (tree, tree, tree, tree, tree, int);
|
||
extern void genrtl_cleanup_stmt (tree);
|
||
extern int stmts_are_full_exprs_p (void);
|
||
extern int anon_aggr_type_p (tree);
|
||
|
||
/* For a VAR_DECL that is an anonymous union, these are the various
|
||
sub-variables that make up the anonymous union. */
|
||
#define DECL_ANON_UNION_ELEMS(NODE) DECL_ARGUMENTS ((NODE))
|
||
|
||
/* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */
|
||
#define DECL_C_BIT_FIELD(NODE) \
|
||
(DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) == 1)
|
||
#define SET_DECL_C_BIT_FIELD(NODE) \
|
||
(DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 1)
|
||
#define CLEAR_DECL_C_BIT_FIELD(NODE) \
|
||
(DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 0)
|
||
|
||
/* In a VAR_DECL, nonzero if the decl is a register variable with
|
||
an explicit asm specification. */
|
||
#define DECL_C_HARD_REGISTER(DECL) DECL_LANG_FLAG_4 (VAR_DECL_CHECK (DECL))
|
||
|
||
extern void emit_local_var (tree);
|
||
extern void make_rtl_for_local_static (tree);
|
||
extern tree expand_cond (tree);
|
||
extern tree c_expand_return (tree);
|
||
extern tree do_case (tree, tree);
|
||
extern tree build_stmt (enum tree_code, ...);
|
||
extern tree build_case_label (tree, tree, tree);
|
||
extern tree build_continue_stmt (void);
|
||
extern tree build_break_stmt (void);
|
||
extern tree build_return_stmt (tree);
|
||
|
||
#define COMPOUND_STMT_NO_SCOPE(NODE) TREE_LANG_FLAG_0 (NODE)
|
||
|
||
/* Used by the C++ frontend to mark the block around the member
|
||
initializers and cleanups. */
|
||
#define COMPOUND_STMT_BODY_BLOCK(NODE) TREE_LANG_FLAG_3 (NODE)
|
||
|
||
extern void c_expand_asm_operands (tree, tree, tree, tree, int, location_t);
|
||
|
||
/* These functions must be defined by each front-end which implements
|
||
a variant of the C language. They are used in c-common.c. */
|
||
|
||
extern tree build_unary_op (enum tree_code, tree, int);
|
||
extern tree build_binary_op (enum tree_code, tree, tree, int);
|
||
extern int lvalue_p (tree);
|
||
extern tree default_conversion (tree);
|
||
|
||
/* Given two integer or real types, return the type for their sum.
|
||
Given two compatible ANSI C types, returns the merged type. */
|
||
|
||
extern tree common_type (tree, tree);
|
||
|
||
extern tree expand_tree_builtin (tree, tree, tree);
|
||
|
||
extern tree decl_constant_value (tree);
|
||
|
||
/* Handle increment and decrement of boolean types. */
|
||
extern tree boolean_increment (enum tree_code, tree);
|
||
|
||
/* Hook currently used only by the C++ front end to reset internal state
|
||
after entering or leaving a header file. */
|
||
extern void extract_interface_info (void);
|
||
|
||
extern int case_compare (splay_tree_key, splay_tree_key);
|
||
|
||
extern tree c_add_case_label (splay_tree, tree, tree, tree);
|
||
|
||
extern tree build_function_call (tree, tree);
|
||
|
||
extern tree finish_label_address_expr (tree);
|
||
|
||
/* Same function prototype, but the C and C++ front ends have
|
||
different implementations. Used in c-common.c. */
|
||
extern tree lookup_label (tree);
|
||
|
||
extern rtx c_expand_expr (tree, rtx, enum machine_mode, int, rtx *);
|
||
|
||
extern int c_safe_from_p (rtx, tree);
|
||
|
||
extern int c_staticp (tree);
|
||
|
||
extern int c_common_unsafe_for_reeval (tree);
|
||
|
||
extern void init_c_lex (void);
|
||
|
||
extern void c_cpp_builtins (cpp_reader *);
|
||
|
||
/* Positive if an implicit `extern "C"' scope has just been entered;
|
||
negative if such a scope has just been exited. */
|
||
extern int pending_lang_change;
|
||
|
||
/* Information recorded about each file examined during compilation. */
|
||
|
||
struct c_fileinfo
|
||
{
|
||
int time; /* Time spent in the file. */
|
||
short interface_only; /* Flags - used only by C++ */
|
||
short interface_unknown;
|
||
};
|
||
|
||
struct c_fileinfo *get_fileinfo (const char *);
|
||
extern void dump_time_statistics (void);
|
||
|
||
extern bool c_dump_tree (void *, tree);
|
||
|
||
extern void pch_init (void);
|
||
extern int c_common_valid_pch (cpp_reader *pfile, const char *name, int fd);
|
||
extern void c_common_read_pch (cpp_reader *pfile, const char *name, int fd,
|
||
const char *orig);
|
||
extern void c_common_write_pch (void);
|
||
extern void c_common_no_more_pch (void);
|
||
extern void builtin_define_with_value (const char *, const char *, int);
|
||
extern void c_stddef_cpp_builtins (void);
|
||
extern void fe_file_change (const struct line_map *);
|
||
extern int c_estimate_num_insns (tree decl);
|
||
extern bool c_decl_uninit (tree t);
|
||
extern void c_parse_error (const char *, enum cpp_ttype, tree);
|
||
|
||
/* The following have been moved here from c-tree.h, since they're needed
|
||
in the ObjC++ world, too. What is more, stub-objc.c could use a few
|
||
prototypes. */
|
||
extern tree lookup_interface (tree);
|
||
extern tree is_class_name (tree);
|
||
extern tree objc_is_object_ptr (tree);
|
||
extern void objc_check_decl (tree);
|
||
extern int objc_comptypes (tree, tree, int);
|
||
extern tree objc_message_selector (void);
|
||
extern tree lookup_objc_ivar (tree);
|
||
extern void *get_current_scope (void);
|
||
extern void objc_mark_locals_volatile (void *);
|
||
|
||
/* In c-ppoutput.c */
|
||
extern void init_pp_output (FILE *);
|
||
extern void preprocess_file (cpp_reader *);
|
||
extern void pp_file_change (const struct line_map *);
|
||
extern void pp_dir_change (cpp_reader *, const char *);
|
||
|
||
#endif /* ! GCC_C_COMMON_H */
|