Mercurial > hg > truffle
annotate src/share/vm/runtime/javaFrameAnchor.hpp @ 10246:194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
Summary: Refactor G1's hot card cache and card counts table into their own files. Simplify the card counts table, including removing the encoding of the card index in each entry. The card counts table now has a 1:1 correspondence with the cards spanned by heap. Space for the card counts table is reserved from virtual memory (rather than C heap) during JVM startup and is committed/expanded when the heap is expanded. Changes were also reviewed-by Vitaly Davidovich.
Reviewed-by: tschatzl, jmasa
| author | johnc |
|---|---|
| date | Thu, 09 May 2013 11:16:39 -0700 |
| parents | f08d439fab8c |
| children | bdd155477289 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 1972 | 24 |
| 25 #ifndef SHARE_VM_RUNTIME_JAVAFRAMEANCHOR_HPP | |
| 26 #define SHARE_VM_RUNTIME_JAVAFRAMEANCHOR_HPP | |
| 27 | |
| 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 | |
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47 #ifdef TARGET_OS_ARCH_linux_arm |
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48 # include "orderAccess_linux_arm.inline.hpp" |
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49 #endif |
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50 #ifdef TARGET_OS_ARCH_linux_ppc |
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51 # include "orderAccess_linux_ppc.inline.hpp" |
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52 #endif |
| 3960 | 53 #ifdef TARGET_OS_ARCH_bsd_x86 |
| 54 # include "orderAccess_bsd_x86.inline.hpp" | |
| 55 #endif | |
| 56 #ifdef TARGET_OS_ARCH_bsd_zero | |
| 57 # include "orderAccess_bsd_zero.inline.hpp" | |
| 58 #endif | |
| 59 | |
| 0 | 60 // |
| 61 // An object for encapsulating the machine/os dependent part of a JavaThread frame state | |
| 62 // | |
| 63 class JavaThread; | |
| 64 | |
| 65 class JavaFrameAnchor VALUE_OBJ_CLASS_SPEC { | |
| 66 // Too many friends... | |
| 67 friend class CallNativeDirectNode; | |
| 68 friend class OptoRuntime; | |
| 69 friend class Runtime1; | |
| 70 friend class StubAssembler; | |
| 71 friend class CallRuntimeDirectNode; | |
| 72 friend class MacroAssembler; | |
| 73 friend class InterpreterGenerator; | |
| 74 friend class LIR_Assembler; | |
| 75 friend class GraphKit; | |
| 76 friend class StubGenerator; | |
| 77 friend class JavaThread; | |
| 78 friend class frame; | |
| 79 friend class VMStructs; | |
| 80 friend class BytecodeInterpreter; | |
| 81 friend class JavaCallWrapper; | |
| 82 | |
| 83 private: | |
| 84 // | |
| 85 // Whenever _last_Java_sp != NULL other anchor fields MUST be valid! | |
| 86 // The stack may not be walkable [check with walkable() ] but the values must be valid. | |
| 87 // The profiler apparently depends on this. | |
| 88 // | |
| 89 intptr_t* volatile _last_Java_sp; | |
| 90 | |
| 91 // Whenever we call from Java to native we can not be assured that the return | |
| 92 // address that composes the last_Java_frame will be in an accessible location | |
| 93 // so calls from Java to native store that pc (or one good enough to locate | |
| 94 // the oopmap) in the frame anchor. Since the frames that call from Java to | |
| 95 // native are never deoptimized we never need to patch the pc and so this | |
| 96 // is acceptable. | |
| 97 volatile address _last_Java_pc; | |
| 98 | |
| 99 // tells whether the last Java frame is set | |
| 100 // It is important that when last_Java_sp != NULL that the rest of the frame | |
| 101 // anchor (including platform specific) all be valid. | |
| 102 | |
| 103 bool has_last_Java_frame() const { return _last_Java_sp != NULL; } | |
| 104 // This is very dangerous unless sp == NULL | |
| 105 // Invalidate the anchor so that has_last_frame is false | |
| 106 // and no one should look at the other fields. | |
| 107 void zap(void) { _last_Java_sp = NULL; } | |
| 108 | |
| 1972 | 109 #ifdef TARGET_ARCH_x86 |
| 110 # include "javaFrameAnchor_x86.hpp" | |
| 111 #endif | |
| 112 #ifdef TARGET_ARCH_sparc | |
| 113 # include "javaFrameAnchor_sparc.hpp" | |
| 114 #endif | |
| 115 #ifdef TARGET_ARCH_zero | |
| 116 # include "javaFrameAnchor_zero.hpp" | |
| 117 #endif | |
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118 #ifdef TARGET_ARCH_arm |
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119 # include "javaFrameAnchor_arm.hpp" |
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120 #endif |
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121 #ifdef TARGET_ARCH_ppc |
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122 # include "javaFrameAnchor_ppc.hpp" |
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123 #endif |
| 1972 | 124 |
| 0 | 125 |
| 126 public: | |
| 127 JavaFrameAnchor() { clear(); } | |
| 128 JavaFrameAnchor(JavaFrameAnchor *src) { copy(src); } | |
| 129 | |
| 130 void set_last_Java_pc(address pc) { _last_Java_pc = pc; } | |
| 131 | |
| 132 // Assembly stub generation helpers | |
| 133 | |
| 134 static ByteSize last_Java_sp_offset() { return byte_offset_of(JavaFrameAnchor, _last_Java_sp); } | |
| 135 static ByteSize last_Java_pc_offset() { return byte_offset_of(JavaFrameAnchor, _last_Java_pc); } | |
| 136 | |
| 137 }; | |
| 1972 | 138 |
| 139 #endif // SHARE_VM_RUNTIME_JAVAFRAMEANCHOR_HPP |