view src/share/vm/adlc/adlc.hpp @ 1716:be3f9c242c9d

6948538: CMS: BOT walkers can fall into object allocation and initialization cracks Summary: GC workers now recognize an intermediate transient state of blocks which are allocated but have not yet completed initialization. blk_start() calls do not attempt to determine the size of a block in the transient state, rather waiting for the block to become initialized so that it is safe to query its size. Audited and ensured the order of initialization of object fields (klass, free bit and size) to respect block state transition protocol. Also included some new assertion checking code enabled in debug mode. Reviewed-by: chrisphi, johnc, poonam
author ysr
date Mon, 16 Aug 2010 15:58:42 -0700
parents c18cbe5936b8
children f95d63e2154a
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/*
 * Copyright (c) 1998, 2009, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

//
// Standard include file for ADLC parser
//

// standard library constants
#include "stdio.h"
#include "stdlib.h"
#include <iostream>
#include "string.h"
#include "ctype.h"
#include "stdarg.h"
#include <sys/types.h>

#if _MSC_VER >= 1300
using namespace std;
#endif

// make sure the MSC_VER and _MSC_VER settings make sense
#if _MSC_VER != MSC_VER && (_MSC_VER != 1400 || MSC_VER != 1399)
#error "Something is wrong with the detection of MSC_VER in the makefiles"
#endif

#if _MSC_VER >= 1400
#define strdup _strdup
#endif

/* Make sure that we have the intptr_t and uintptr_t definitions */
#ifdef _WIN32
#ifndef _INTPTR_T_DEFINED
#ifdef _WIN64
typedef __int64 intptr_t;
#else
typedef int intptr_t;
#endif
#define _INTPTR_T_DEFINED
#endif

#ifndef _UINTPTR_T_DEFINED
#ifdef _WIN64
typedef unsigned __int64 uintptr_t;
#else
typedef unsigned int uintptr_t;
#endif
#define _UINTPTR_T_DEFINED
#endif
#endif // _WIN32

#ifdef LINUX
  #include <inttypes.h>
#endif // LINUX

// Macros
#define uint32 unsigned int
#define uint   unsigned int

// Macros
// Debugging note:  Put a breakpoint on "abort".
#undef assert
#define assert(cond, msg) { if (!(cond)) { fprintf(stderr, "assert fails %s %d: %s\n", __FILE__, __LINE__, msg); abort(); }}
#define max(a, b)   (((a)>(b)) ? (a) : (b))

// VM components
#include "opcodes.hpp"

// ADLC components
#include "arena.hpp"
#include "adlcVMDeps.hpp"
#include "filebuff.hpp"
#include "dict2.hpp"
#include "forms.hpp"
#include "formsopt.hpp"
#include "formssel.hpp"
#include "archDesc.hpp"
#include "adlparse.hpp"

// globally define ArchDesc for convenience.  Alternatively every form
// could have a backpointer to the AD but it's too complicated to pass
// it everywhere it needs to be available.
extern ArchDesc* globalAD;