From 40d7cd0fd78fe2004e2a53c4618c148339b02733 Mon Sep 17 00:00:00 2001 From: Jing Yu Date: Mon, 19 Dec 2011 16:56:54 -0800 Subject: Add gcc-4.6. Synced to @180989 Change-Id: Ie3676586e1d8e3c8cd9f07d022f450d05fa08439 svn://gcc.gnu.org/svn/gcc/branches/google/gcc-4_6-mobile --- gcc-4.6/gcc/c-objc-common.c | 214 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 214 insertions(+) create mode 100644 gcc-4.6/gcc/c-objc-common.c (limited to 'gcc-4.6/gcc/c-objc-common.c') diff --git a/gcc-4.6/gcc/c-objc-common.c b/gcc-4.6/gcc/c-objc-common.c new file mode 100644 index 000000000..9351cd5a5 --- /dev/null +++ b/gcc-4.6/gcc/c-objc-common.c @@ -0,0 +1,214 @@ +/* Some code common to C and ObjC front ends. + Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007, + 2009, 2010 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 3, 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 COPYING3. If not see +. */ + +#include "config.h" +#include "system.h" +#include "coretypes.h" +#include "tree.h" +#include "c-tree.h" +#include "intl.h" +#include "c-family/c-pretty-print.h" +#include "flags.h" +#include "diagnostic.h" +#include "tree-pretty-print.h" +#include "langhooks.h" +#include "c-objc-common.h" + +static bool c_tree_printer (pretty_printer *, text_info *, const char *, + int, bool, bool, bool); + +bool +c_missing_noreturn_ok_p (tree decl) +{ + /* A missing noreturn is not ok for freestanding implementations and + ok for the `main' function in hosted implementations. */ + return flag_hosted && MAIN_NAME_P (DECL_ASSEMBLER_NAME (decl)); +} + +/* Called from check_global_declarations. */ + +bool +c_warn_unused_global_decl (const_tree decl) +{ + if (TREE_CODE (decl) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (decl)) + return false; + if (DECL_IN_SYSTEM_HEADER (decl)) + return false; + + return true; +} + +/* Initialization common to C and Objective-C front ends. */ +bool +c_objc_common_init (void) +{ + c_init_decl_processing (); + + if (c_common_init () == false) + return false; + + /* These were not defined in the Objective-C front end, but I'm + putting them here anyway. The diagnostic format decoder might + want an enhanced ObjC implementation. */ + diagnostic_format_decoder (global_dc) = &c_tree_printer; + + return true; +} + +/* Called during diagnostic message formatting process to print a + source-level entity onto BUFFER. The meaning of the format specifiers + is as follows: + %D: a general decl, + %E: an identifier or expression, + %F: a function declaration, + %T: a type. + %V: a list of type qualifiers from a tree. + %v: an explicit list of type qualifiers + %#v: an explicit list of type qualifiers of a function type. + + Please notice when called, the `%' part was already skipped by the + diagnostic machinery. */ +static bool +c_tree_printer (pretty_printer *pp, text_info *text, const char *spec, + int precision, bool wide, bool set_locus, bool hash) +{ + tree t = NULL_TREE; + tree name; + c_pretty_printer *cpp = (c_pretty_printer *) pp; + pp->padding = pp_none; + + if (precision != 0 || wide) + return false; + + if (*spec == 'K') + { + percent_K_format (text); + return true; + } + + if (*spec != 'v') + { + t = va_arg (*text->args_ptr, tree); + if (set_locus && text->locus) + *text->locus = DECL_SOURCE_LOCATION (t); + } + + switch (*spec) + { + case 'D': + if (DECL_DEBUG_EXPR_IS_FROM (t) && DECL_DEBUG_EXPR (t)) + { + t = DECL_DEBUG_EXPR (t); + if (!DECL_P (t)) + { + pp_c_expression (cpp, t); + return true; + } + } + /* FALLTHRU */ + + case 'F': + if (DECL_NAME (t)) + { + pp_identifier (cpp, lang_hooks.decl_printable_name (t, 2)); + return true; + } + break; + + case 'T': + gcc_assert (TYPE_P (t)); + name = TYPE_NAME (t); + + if (name && TREE_CODE (name) == TYPE_DECL) + { + if (DECL_NAME (name)) + pp_identifier (cpp, lang_hooks.decl_printable_name (name, 2)); + else + pp_type_id (cpp, t); + return true; + } + else + { + pp_type_id (cpp, t); + return true; + } + break; + + case 'E': + if (TREE_CODE (t) == IDENTIFIER_NODE) + pp_identifier (cpp, IDENTIFIER_POINTER (t)); + else + pp_expression (cpp, t); + return true; + + case 'V': + pp_c_type_qualifier_list (cpp, t); + return true; + + case 'v': + pp_c_cv_qualifiers (cpp, va_arg (*text->args_ptr, int), hash); + return true; + + default: + return false; + } + + pp_string (cpp, _("({anonymous})")); + return true; +} + +/* In C and ObjC, all decls have "C" linkage. */ +bool +has_c_linkage (const_tree decl ATTRIBUTE_UNUSED) +{ + return true; +} + +void +c_initialize_diagnostics (diagnostic_context *context) +{ + pretty_printer *base; + c_pretty_printer *pp; + + c_common_initialize_diagnostics (context); + + base = context->printer; + pp = XNEW (c_pretty_printer); + memcpy (pp_base (pp), base, sizeof (pretty_printer)); + pp_c_pretty_printer_init (pp); + context->printer = (pretty_printer *) pp; + + /* It is safe to free this object because it was previously XNEW()'d. */ + XDELETE (base); +} + +int +c_types_compatible_p (tree x, tree y) +{ + return comptypes (TYPE_MAIN_VARIANT (x), TYPE_MAIN_VARIANT (y)); +} + +/* Determine if the type is a vla type for the backend. */ + +bool +c_vla_unspec_p (tree x, tree fn ATTRIBUTE_UNUSED) +{ + return c_vla_type_p (x); +} -- cgit v1.2.3