X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=gcc%2Fc-objc-common.c;h=274f2701c960d44a26be163fd2b1356221071164;hp=e9a4a09ed8d3d52e93bcd320672ca6ad238b1d10;hb=1fbe0481397081ff11e438dbfaadc9b69fbfc679;hpb=e14083e04548801c04171dac3ddbfdb23f036c70 diff --git a/gcc/c-objc-common.c b/gcc/c-objc-common.c index e9a4a09ed8d..274f2701c96 100644 --- a/gcc/c-objc-common.c +++ b/gcc/c-objc-common.c @@ -1,11 +1,11 @@ /* Some code common to C and ObjC front ends. - Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. + Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007 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 +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 @@ -14,9 +14,8 @@ 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. */ +along with GCC; see the file COPYING3. If not see +. */ #include "config.h" #include "system.h" @@ -26,8 +25,8 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #include "rtl.h" #include "insn-config.h" #include "integrate.h" -#include "expr.h" #include "c-tree.h" +#include "c-pretty-print.h" #include "function.h" #include "flags.h" #include "toplev.h" @@ -36,14 +35,14 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #include "varray.h" #include "ggc.h" #include "langhooks.h" +#include "tree-mudflap.h" #include "target.h" -#include "cgraph.h" +#include "c-objc-common.h" -static bool c_tree_printer (pretty_printer *, text_info *); -static tree start_cdtor (int); -static void finish_cdtor (tree); +static bool c_tree_printer (pretty_printer *, text_info *, const char *, + int, bool, bool, bool); -int +bool c_missing_noreturn_ok_p (tree decl) { /* A missing noreturn is not ok for freestanding implementations and @@ -51,96 +50,10 @@ c_missing_noreturn_ok_p (tree decl) return flag_hosted && MAIN_NAME_P (DECL_ASSEMBLER_NAME (decl)); } -/* We want to inline `extern inline' functions even if this would - violate inlining limits. Some glibc and linux constructs depend on - such functions always being inlined when optimizing. */ - -int -c_disregard_inline_limits (tree fn) -{ - if (lookup_attribute ("always_inline", DECL_ATTRIBUTES (fn)) != NULL) - return 1; - - return DECL_DECLARED_INLINE_P (fn) && DECL_EXTERNAL (fn); -} - -int -c_cannot_inline_tree_fn (tree *fnp) -{ - tree fn = *fnp; - tree t; - bool do_warning = (warn_inline - && DECL_INLINE (fn) - && DECL_DECLARED_INLINE_P (fn) - && !DECL_IN_SYSTEM_HEADER (fn)); - - if (flag_really_no_inline - && lookup_attribute ("always_inline", DECL_ATTRIBUTES (fn)) == NULL) - { - if (do_warning) - warning ("%Jfunction '%F' can never be inlined because it " - "is supressed using -fno-inline", fn, fn); - goto cannot_inline; - } - - /* Don't auto-inline anything that might not be bound within - this unit of translation. */ - if (!DECL_DECLARED_INLINE_P (fn) && !(*targetm.binds_local_p) (fn)) - { - if (do_warning) - warning ("%Jfunction '%F' can never be inlined because it might not " - "be bound within this unit of translation", fn, fn); - goto cannot_inline; - } - - if (! function_attribute_inlinable_p (fn)) - { - if (do_warning) - warning ("%Jfunction '%F' can never be inlined because it uses " - "attributes conflicting with inlining", fn, fn); - goto cannot_inline; - } - - /* If a function has pending sizes, we must not defer its - compilation, and we can't inline it as a tree. */ - if (fn == current_function_decl) - { - t = get_pending_sizes (); - put_pending_sizes (t); - - if (t) - { - if (do_warning) - warning ("%Jfunction '%F' can never be inlined because it has " - "pending sizes", fn, fn); - goto cannot_inline; - } - } - - if (! DECL_FILE_SCOPE_P (fn)) - { - /* If a nested function has pending sizes, we may have already - saved them. */ - if (DECL_LANG_SPECIFIC (fn)->pending_sizes) - { - if (do_warning) - warning ("%Jnested function '%F' can never be inlined because it " - "has possibly saved pending sizes", fn, fn); - goto cannot_inline; - } - } - - return 0; - - cannot_inline: - DECL_UNINLINABLE (fn) = 1; - return 1; -} - /* Called from check_global_declarations. */ bool -c_warn_unused_global_decl (tree decl) +c_warn_unused_global_decl (const_tree decl) { if (TREE_CODE (decl) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (decl)) return false; @@ -154,134 +67,24 @@ c_warn_unused_global_decl (tree decl) bool c_objc_common_init (void) { - static const enum tree_code stmt_codes[] = { - c_common_stmt_codes - }; - - INIT_STATEMENT_CODES (stmt_codes); - c_init_decl_processing (); if (c_common_init () == false) return false; - lang_expand_decl_stmt = c_expand_decl_stmt; - /* 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; - lang_missing_noreturn_ok_p = &c_missing_noreturn_ok_p; - - /* If still unspecified, make it match -std=c99 - (allowing for -pedantic-errors). */ - if (mesg_implicit_function_declaration < 0) - { - if (flag_isoc99) - mesg_implicit_function_declaration = flag_pedantic_errors ? 2 : 1; - else - mesg_implicit_function_declaration = 0; - } return true; } -static tree -start_cdtor (int method_type) -{ - tree fnname = get_file_function_name (method_type); - tree void_list_node_1 = build_tree_list (NULL_TREE, void_type_node); - tree body; - - start_function (void_list_node_1, - build_nt (CALL_EXPR, fnname, - tree_cons (NULL_TREE, NULL_TREE, void_list_node_1), - NULL_TREE), - NULL_TREE); - store_parm_decls (); - - current_function_cannot_inline - = "static constructors and destructors cannot be inlined"; - - body = c_begin_compound_stmt (); - - pushlevel (0); - clear_last_expr (); - add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0); - - return body; -} - -static void -finish_cdtor (tree body) -{ - tree scope; - tree block; - - scope = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0); - block = poplevel (0, 0, 0); - SCOPE_STMT_BLOCK (TREE_PURPOSE (scope)) = block; - SCOPE_STMT_BLOCK (TREE_VALUE (scope)) = block; - - RECHAIN_STMTS (body, COMPOUND_BODY (body)); - - finish_function (); -} - -/* Called at end of parsing, but before end-of-file processing. */ - -void -c_objc_common_finish_file (void) -{ - if (pch_file) - c_common_write_pch (); - - /* If multiple translation units were built, copy information between - them based on linkage rules. */ - merge_translation_unit_decls (); - - cgraph_finalize_compilation_unit (); - cgraph_optimize (); - - if (static_ctors) - { - tree body = start_cdtor ('I'); - - for (; static_ctors; static_ctors = TREE_CHAIN (static_ctors)) - c_expand_expr_stmt (build_function_call (TREE_VALUE (static_ctors), - NULL_TREE)); - - finish_cdtor (body); - } - - if (static_dtors) - { - tree body = start_cdtor ('D'); - - for (; static_dtors; static_dtors = TREE_CHAIN (static_dtors)) - c_expand_expr_stmt (build_function_call (TREE_VALUE (static_dtors), - NULL_TREE)); - - finish_cdtor (body); - } - - { - int flags; - FILE *stream = dump_begin (TDI_all, &flags); - - if (stream) - { - dump_node (getdecls (), flags & ~TDF_SLIM, stream); - dump_end (TDI_all, stream); - } - } -} - /* 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 expression, + %E: an identifier or expression, %F: a function declaration, %T: a type. @@ -290,30 +93,56 @@ c_objc_common_finish_file (void) Please notice when called, the `%' part was already skipped by the diagnostic machinery. */ static bool -c_tree_printer (pretty_printer *pp, text_info *text) +c_tree_printer (pretty_printer *pp, text_info *text, const char *spec, + int precision, bool wide, bool set_locus, bool hash) { tree t = va_arg (*text->args_ptr, tree); + tree name; const char *n = "({anonymous})"; + c_pretty_printer *cpp = (c_pretty_printer *) pp; + pp->padding = pp_none; + + if (precision != 0 || wide || hash) + return false; - switch (*text->format_spec) + 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)) - n = (*lang_hooks.decl_printable_name) (t, 2); + n = lang_hooks.decl_printable_name (t, 2); break; case 'T': - if (TREE_CODE (t) == TYPE_DECL) + gcc_assert (TYPE_P (t)); + name = TYPE_NAME (t); + + if (name && TREE_CODE (name) == TYPE_DECL) { - if (DECL_NAME (t)) - n = (*lang_hooks.decl_printable_name) (t, 2); + if (DECL_NAME (name)) + pp_string (cpp, lang_hooks.decl_printable_name (name, 2)); + else + pp_type_id (cpp, t); + return true; } else { - t = TYPE_NAME (t); - if (t) - n = IDENTIFIER_POINTER (t); + pp_type_id (cpp, t); + return true; } break; @@ -321,13 +150,50 @@ c_tree_printer (pretty_printer *pp, text_info *text) if (TREE_CODE (t) == IDENTIFIER_NODE) n = IDENTIFIER_POINTER (t); else - return false; + { + pp_expression (cpp, t); + return true; + } break; default: return false; } - pp_string (pp, n); + pp_string (cpp, n); 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 = context->printer; + c_pretty_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); +}