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);