view src/share/vm/utilities/macros.hpp @ 453:c96030fff130

6684579: SoftReference processing can be made more efficient Summary: For current soft-ref clearing policies, we can decide at marking time if a soft-reference will definitely not be cleared, postponing the decision of whether it will definitely be cleared to the final reference processing phase. This can be especially beneficial in the case of concurrent collectors where the marking is usually concurrent but reference processing is usually not. Reviewed-by: jmasa
author ysr
date Thu, 20 Nov 2008 16:56:09 -0800
parents 9ee9cf798b59
children 6e2afda171db
line wrap: on
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/*
 * Copyright 1997-2008 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 *
 */

// Use this to mark code that needs to be cleaned up (for development only)
#define NEEDS_CLEANUP

// Makes a string of the argument (which is not macro-expanded)
#define STR(a)  #a

// Makes a string of the macro expansion of a
#define XSTR(a) STR(a)

// KERNEL variant
#ifdef KERNEL
#define COMPILER1
#define SERIALGC

#define JVMTI_KERNEL
#define FPROF_KERNEL
#define VM_STRUCTS_KERNEL
#define JNICHECK_KERNEL
#define SERVICES_KERNEL

#define KERNEL_RETURN        {}
#define KERNEL_RETURN_(code) { code }

#else  // KERNEL

#define KERNEL_RETURN        /* next token must be ; */
#define KERNEL_RETURN_(code) /* next token must be ; */

#endif // KERNEL

// COMPILER1 variant
#ifdef COMPILER1
#ifdef COMPILER2
  #define TIERED
#endif
#define COMPILER1_PRESENT(code) code
#else // COMPILER1
#define COMPILER1_PRESENT(code)
#endif // COMPILER1

// COMPILER2 variant
#ifdef COMPILER2
#define COMPILER2_PRESENT(code) code
#define NOT_COMPILER2(code)
#else // COMPILER2
#define COMPILER2_PRESENT(code)
#define NOT_COMPILER2(code) code
#endif // COMPILER2


// PRODUCT variant
#ifdef PRODUCT
#define PRODUCT_ONLY(code) code
#define NOT_PRODUCT(code)
#define PRODUCT_RETURN  {}
#define PRODUCT_RETURN0 { return 0; }
#define PRODUCT_RETURN_(code) { code }
#else // PRODUCT
#define PRODUCT_ONLY(code)
#define NOT_PRODUCT(code) code
#define PRODUCT_RETURN  /*next token must be ;*/
#define PRODUCT_RETURN0 /*next token must be ;*/
#define PRODUCT_RETURN_(code)  /*next token must be ;*/
#endif // PRODUCT

#ifdef CHECK_UNHANDLED_OOPS
#define CHECK_UNHANDLED_OOPS_ONLY(code) code
#define NOT_CHECK_UNHANDLED_OOPS(code)
#else
#define CHECK_UNHANDLED_OOPS_ONLY(code)
#define NOT_CHECK_UNHANDLED_OOPS(code)  code
#endif // CHECK_UNHANDLED_OOPS

#ifdef CC_INTERP
#define CC_INTERP_ONLY(code) code
#define NOT_CC_INTERP(code)
#else
#define CC_INTERP_ONLY(code)
#define NOT_CC_INTERP(code) code
#endif // CC_INTERP

#ifdef ASSERT
#define DEBUG_ONLY(code) code
#define NOT_DEBUG(code)
// Historical.
#define debug_only(code) code
#else // ASSERT
#define DEBUG_ONLY(code)
#define NOT_DEBUG(code) code
#define debug_only(code)
#endif // ASSERT

#ifdef  _LP64
#define LP64_ONLY(code) code
#define NOT_LP64(code)
#else  // !_LP64
#define LP64_ONLY(code)
#define NOT_LP64(code) code
#endif // _LP64

#ifdef LINUX
#define LINUX_ONLY(code) code
#define NOT_LINUX(code)
#else
#define LINUX_ONLY(code)
#define NOT_LINUX(code) code
#endif

#ifdef SOLARIS
#define SOLARIS_ONLY(code) code
#define NOT_SOLARIS(code)
#else
#define SOLARIS_ONLY(code)
#define NOT_SOLARIS(code) code
#endif

#ifdef _WINDOWS
#define WINDOWS_ONLY(code) code
#define NOT_WINDOWS(code)
#else
#define WINDOWS_ONLY(code)
#define NOT_WINDOWS(code) code
#endif

#if defined(IA32) || defined(AMD64)
#define X86
#define X86_ONLY(code) code
#else
#undef X86
#define X86_ONLY(code)
#endif

#ifdef IA32
#define IA32_ONLY(code) code
#define NOT_IA32(code)
#else
#define IA32_ONLY(code)
#define NOT_IA32(code) code
#endif

#ifdef IA64
#define IA64_ONLY(code) code
#define NOT_IA64(code)
#else
#define IA64_ONLY(code)
#define NOT_IA64(code) code
#endif

#ifdef AMD64
#define AMD64_ONLY(code) code
#define NOT_AMD64(code)
#else
#define AMD64_ONLY(code)
#define NOT_AMD64(code) code
#endif

#ifdef SPARC
#define SPARC_ONLY(code) code
#define NOT_SPARC(code)
#else
#define SPARC_ONLY(code)
#define NOT_SPARC(code) code
#endif

#define FIX_THIS(code) report_assertion_failure("FIX_THIS",__FILE__, __LINE__, "")

#define define_pd_global(type, name, value) const type pd_##name = value;