src/share/vm/runtime/javaFrameAnchor.hpp

Wed, 01 Dec 2010 15:04:06 +0100

author
stefank
date
Wed, 01 Dec 2010 15:04:06 +0100
changeset 2325
c760f78e0a53
parent 2314
f95d63e2154a
child 2508
b92c45f2bc75
permissions
-rw-r--r--

7003125: precompiled.hpp is included when precompiled headers are not used
Summary: Added an ifndef DONT_USE_PRECOMPILED_HEADER to precompiled.hpp. Set up DONT_USE_PRECOMPILED_HEADER when compiling with Sun Studio or when the user specifies USE_PRECOMPILED_HEADER=0. Fixed broken include dependencies.
Reviewed-by: coleenp, kvn

     1 /*
     2  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 #ifndef SHARE_VM_RUNTIME_JAVAFRAMEANCHOR_HPP
    26 #define SHARE_VM_RUNTIME_JAVAFRAMEANCHOR_HPP
    28 #include "utilities/globalDefinitions.hpp"
    29 #ifdef TARGET_OS_ARCH_linux_x86
    30 # include "orderAccess_linux_x86.inline.hpp"
    31 #endif
    32 #ifdef TARGET_OS_ARCH_linux_sparc
    33 # include "orderAccess_linux_sparc.inline.hpp"
    34 #endif
    35 #ifdef TARGET_OS_ARCH_linux_zero
    36 # include "orderAccess_linux_zero.inline.hpp"
    37 #endif
    38 #ifdef TARGET_OS_ARCH_solaris_x86
    39 # include "orderAccess_solaris_x86.inline.hpp"
    40 #endif
    41 #ifdef TARGET_OS_ARCH_solaris_sparc
    42 # include "orderAccess_solaris_sparc.inline.hpp"
    43 #endif
    44 #ifdef TARGET_OS_ARCH_windows_x86
    45 # include "orderAccess_windows_x86.inline.hpp"
    46 #endif
    47 //
    48 // An object for encapsulating the machine/os dependent part of a JavaThread frame state
    49 //
    50 class JavaThread;
    52 class JavaFrameAnchor VALUE_OBJ_CLASS_SPEC {
    53 // Too many friends...
    54 friend class CallNativeDirectNode;
    55 friend class OptoRuntime;
    56 friend class Runtime1;
    57 friend class StubAssembler;
    58 friend class CallRuntimeDirectNode;
    59 friend class MacroAssembler;
    60 friend class InterpreterGenerator;
    61 friend class LIR_Assembler;
    62 friend class GraphKit;
    63 friend class StubGenerator;
    64 friend class JavaThread;
    65 friend class frame;
    66 friend class VMStructs;
    67 friend class BytecodeInterpreter;
    68 friend class JavaCallWrapper;
    70  private:
    71   //
    72   // Whenever _last_Java_sp != NULL other anchor fields MUST be valid!
    73   // The stack may not be walkable [check with walkable() ] but the values must be valid.
    74   // The profiler apparently depends on this.
    75   //
    76   intptr_t* volatile _last_Java_sp;
    78   // Whenever we call from Java to native we can not be assured that the return
    79   // address that composes the last_Java_frame will be in an accessible location
    80   // so calls from Java to native store that pc (or one good enough to locate
    81   // the oopmap) in the frame anchor. Since the frames that call from Java to
    82   // native are never deoptimized we never need to patch the pc and so this
    83   // is acceptable.
    84   volatile  address _last_Java_pc;
    86   // tells whether the last Java frame is set
    87   // It is important that when last_Java_sp != NULL that the rest of the frame
    88   // anchor (including platform specific) all be valid.
    90   bool has_last_Java_frame() const                   { return _last_Java_sp != NULL; }
    91   // This is very dangerous unless sp == NULL
    92   // Invalidate the anchor so that has_last_frame is false
    93   // and no one should look at the other fields.
    94   void zap(void)                                     { _last_Java_sp = NULL; }
    96 #ifdef TARGET_ARCH_x86
    97 # include "javaFrameAnchor_x86.hpp"
    98 #endif
    99 #ifdef TARGET_ARCH_sparc
   100 # include "javaFrameAnchor_sparc.hpp"
   101 #endif
   102 #ifdef TARGET_ARCH_zero
   103 # include "javaFrameAnchor_zero.hpp"
   104 #endif
   107 public:
   108   JavaFrameAnchor()                              { clear(); }
   109   JavaFrameAnchor(JavaFrameAnchor *src)          { copy(src); }
   111   void set_last_Java_pc(address pc)              { _last_Java_pc = pc; }
   113   // Assembly stub generation helpers
   115   static ByteSize last_Java_sp_offset()          { return byte_offset_of(JavaFrameAnchor, _last_Java_sp); }
   116   static ByteSize last_Java_pc_offset()          { return byte_offset_of(JavaFrameAnchor, _last_Java_pc); }
   118 };
   120 #endif // SHARE_VM_RUNTIME_JAVAFRAMEANCHOR_HPP

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