1 /* Some code common to C and ObjC front ends.
2 Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007,
3 2009 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 3, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
23 #include "coretypes.h"
27 #include "insn-config.h"
28 #include "integrate.h"
31 #include "c-pretty-print.h"
35 #include "diagnostic.h"
36 #include "tree-inline.h"
38 #include "langhooks.h"
39 #include "tree-mudflap.h"
41 #include "c-objc-common.h"
43 static bool c_tree_printer (pretty_printer
*, text_info
*, const char *,
44 int, bool, bool, bool);
47 c_missing_noreturn_ok_p (tree decl
)
49 /* A missing noreturn is not ok for freestanding implementations and
50 ok for the `main' function in hosted implementations. */
51 return flag_hosted
&& MAIN_NAME_P (DECL_ASSEMBLER_NAME (decl
));
54 /* Called from check_global_declarations. */
57 c_warn_unused_global_decl (const_tree decl
)
59 if (TREE_CODE (decl
) == FUNCTION_DECL
&& DECL_DECLARED_INLINE_P (decl
))
61 if (DECL_IN_SYSTEM_HEADER (decl
))
67 /* Initialization common to C and Objective-C front ends. */
69 c_objc_common_init (void)
71 c_init_decl_processing ();
73 if (c_common_init () == false)
76 /* These were not defined in the Objective-C front end, but I'm
77 putting them here anyway. The diagnostic format decoder might
78 want an enhanced ObjC implementation. */
79 diagnostic_format_decoder (global_dc
) = &c_tree_printer
;
84 /* Called during diagnostic message formatting process to print a
85 source-level entity onto BUFFER. The meaning of the format specifiers
88 %E: an identifier or expression,
89 %F: a function declaration,
92 These format specifiers form a subset of the format specifiers set used
94 Please notice when called, the `%' part was already skipped by the
95 diagnostic machinery. */
97 c_tree_printer (pretty_printer
*pp
, text_info
*text
, const char *spec
,
98 int precision
, bool wide
, bool set_locus
, bool hash
)
100 tree t
= va_arg (*text
->args_ptr
, tree
);
102 c_pretty_printer
*cpp
= (c_pretty_printer
*) pp
;
103 pp
->padding
= pp_none
;
105 if (precision
!= 0 || wide
|| hash
)
108 if (set_locus
&& text
->locus
)
109 *text
->locus
= DECL_SOURCE_LOCATION (t
);
114 if (DECL_DEBUG_EXPR_IS_FROM (t
) && DECL_DEBUG_EXPR (t
))
116 t
= DECL_DEBUG_EXPR (t
);
119 pp_c_expression (cpp
, t
);
128 pp_identifier (cpp
, lang_hooks
.decl_printable_name (t
, 2));
134 gcc_assert (TYPE_P (t
));
135 name
= TYPE_NAME (t
);
137 if (name
&& TREE_CODE (name
) == TYPE_DECL
)
139 if (DECL_NAME (name
))
140 pp_identifier (cpp
, lang_hooks
.decl_printable_name (name
, 2));
153 if (TREE_CODE (t
) == IDENTIFIER_NODE
)
154 pp_identifier (cpp
, IDENTIFIER_POINTER (t
));
156 pp_expression (cpp
, t
);
163 pp_string (cpp
, _("({anonymous})"));
167 /* In C and ObjC, all decls have "C" linkage. */
169 has_c_linkage (const_tree decl ATTRIBUTE_UNUSED
)
175 c_initialize_diagnostics (diagnostic_context
*context
)
177 pretty_printer
*base
= context
->printer
;
178 c_pretty_printer
*pp
= XNEW (c_pretty_printer
);
179 memcpy (pp_base (pp
), base
, sizeof (pretty_printer
));
180 pp_c_pretty_printer_init (pp
);
181 context
->printer
= (pretty_printer
*) pp
;
183 /* It is safe to free this object because it was previously XNEW()'d. */
188 c_types_compatible_p (tree x
, tree y
)
190 return comptypes (TYPE_MAIN_VARIANT (x
), TYPE_MAIN_VARIANT (y
));
193 /* Determine if the type is a vla type for the backend. */
196 c_vla_unspec_p (tree x
, tree fn ATTRIBUTE_UNUSED
)
198 return c_vla_type_p (x
);