Mercurial > hg > truffle
annotate src/share/vm/runtime/registerMap.hpp @ 10292:acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
Summary: The VM exits when the condition in the subject line applies. The fix sets InitialTenuringThreshold to MaxTenuringThreshold if it is larger than MaxTenuringThreshold and InitialTenuringThreshold has not been set (is default).
Reviewed-by: jwilhelm, jmasa, brutisso, johnc
| author | tschatzl |
|---|---|
| date | Thu, 16 May 2013 23:51:51 +0200 |
| parents | 1d1603768966 |
| children | 63a4eb8bcd23 |
| 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 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_RUNTIME_REGISTERMAP_HPP |
| 26 #define SHARE_VM_RUNTIME_REGISTERMAP_HPP | |
| 27 | |
| 28 #include "code/vmreg.hpp" | |
| 29 #include "utilities/globalDefinitions.hpp" | |
| 30 #ifdef TARGET_ARCH_x86 | |
| 31 # include "register_x86.hpp" | |
| 32 #endif | |
| 33 #ifdef TARGET_ARCH_sparc | |
| 34 # include "register_sparc.hpp" | |
| 35 #endif | |
| 36 #ifdef TARGET_ARCH_zero | |
| 37 # include "register_zero.hpp" | |
| 38 #endif | |
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39 #ifdef TARGET_ARCH_arm |
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40 # include "register_arm.hpp" |
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41 #endif |
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42 #ifdef TARGET_ARCH_ppc |
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43 # include "register_ppc.hpp" |
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44 #endif |
| 1972 | 45 |
| 0 | 46 class JavaThread; |
| 47 | |
| 48 // | |
| 49 // RegisterMap | |
| 50 // | |
| 51 // A companion structure used for stack traversal. The RegisterMap contains | |
| 52 // misc. information needed in order to do correct stack traversal of stack | |
| 53 // frames. Hence, it must always be passed in as an argument to | |
| 54 // frame::sender(RegisterMap*). | |
| 55 // | |
| 56 // In particular, | |
| 57 // 1) It provides access to the thread for which the stack belongs. The | |
| 58 // thread object is needed in order to get sender of a deoptimized frame. | |
| 59 // | |
| 60 // 2) It is used to pass information from a callee frame to its caller | |
| 61 // frame about how the frame should be traversed. This is used to let | |
| 62 // the caller frame take care of calling oops-do of out-going | |
| 63 // arguments, when the callee frame is not instantiated yet. This | |
| 64 // happens, e.g., when a compiled frame calls into | |
| 65 // resolve_virtual_call. (Hence, it is critical that the same | |
| 66 // RegisterMap object is used for the entire stack walk. Normally, | |
| 67 // this is hidden by using the StackFrameStream.) This is used when | |
| 68 // doing follow_oops and oops_do. | |
| 69 // | |
| 70 // 3) The RegisterMap keeps track of the values of callee-saved registers | |
| 71 // from frame to frame (hence, the name). For some stack traversal the | |
| 72 // values of the callee-saved registers does not matter, e.g., if you | |
| 73 // only need the static properies such as frame type, pc, and such. | |
| 74 // Updating of the RegisterMap can be turned off by instantiating the | |
| 75 // register map as: RegisterMap map(thread, false); | |
| 76 | |
| 77 class RegisterMap : public StackObj { | |
| 78 public: | |
| 79 typedef julong LocationValidType; | |
| 80 enum { | |
| 81 reg_count = ConcreteRegisterImpl::number_of_registers, | |
| 82 location_valid_type_size = sizeof(LocationValidType)*8, | |
| 83 location_valid_size = (reg_count+location_valid_type_size-1)/location_valid_type_size | |
| 84 }; | |
| 85 private: | |
| 86 intptr_t* _location[reg_count]; // Location of registers (intptr_t* looks better than address in the debugger) | |
| 87 LocationValidType _location_valid[location_valid_size]; | |
| 88 bool _include_argument_oops; // Should include argument_oop marked locations for compiler | |
| 89 JavaThread* _thread; // Reference to current thread | |
| 90 bool _update_map; // Tells if the register map need to be | |
| 91 // updated when traversing the stack | |
| 92 | |
| 93 #ifdef ASSERT | |
| 94 void check_location_valid(); | |
| 95 #else | |
| 96 void check_location_valid() {} | |
| 97 #endif | |
| 98 | |
| 99 public: | |
| 100 debug_only(intptr_t* _update_for_id;) // Assert that RegisterMap is not updated twice for same frame | |
| 101 RegisterMap(JavaThread *thread, bool update_map = true); | |
| 102 RegisterMap(const RegisterMap* map); | |
| 103 | |
| 104 address location(VMReg reg) const { | |
| 105 int index = reg->value() / location_valid_type_size; | |
| 106 assert(0 <= reg->value() && reg->value() < reg_count, "range check"); | |
| 107 assert(0 <= index && index < location_valid_size, "range check"); | |
| 108 if (_location_valid[index] & ((LocationValidType)1 << (reg->value() % location_valid_type_size))) { | |
| 109 return (address) _location[reg->value()]; | |
| 110 } else { | |
| 111 return pd_location(reg); | |
| 112 } | |
| 113 } | |
| 114 | |
| 115 void set_location(VMReg reg, address loc) { | |
| 116 int index = reg->value() / location_valid_type_size; | |
| 117 assert(0 <= reg->value() && reg->value() < reg_count, "range check"); | |
| 118 assert(0 <= index && index < location_valid_size, "range check"); | |
| 119 assert(_update_map, "updating map that does not need updating"); | |
| 120 _location[reg->value()] = (intptr_t*) loc; | |
| 121 _location_valid[index] |= ((LocationValidType)1 << (reg->value() % location_valid_type_size)); | |
| 122 check_location_valid(); | |
| 123 } | |
| 124 | |
| 125 // Called by an entry frame. | |
| 126 void clear(); | |
| 127 | |
| 128 bool include_argument_oops() const { return _include_argument_oops; } | |
| 129 void set_include_argument_oops(bool f) { _include_argument_oops = f; } | |
| 130 | |
| 131 JavaThread *thread() const { return _thread; } | |
| 132 bool update_map() const { return _update_map; } | |
| 133 | |
| 134 void print_on(outputStream* st) const; | |
| 135 void print() const; | |
| 136 | |
| 137 // the following contains the definition of pd_xxx methods | |
| 1972 | 138 #ifdef TARGET_ARCH_x86 |
| 139 # include "registerMap_x86.hpp" | |
| 140 #endif | |
| 141 #ifdef TARGET_ARCH_sparc | |
| 142 # include "registerMap_sparc.hpp" | |
| 143 #endif | |
| 144 #ifdef TARGET_ARCH_zero | |
| 145 # include "registerMap_zero.hpp" | |
| 146 #endif | |
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147 #ifdef TARGET_ARCH_arm |
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148 # include "registerMap_arm.hpp" |
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149 #endif |
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150 #ifdef TARGET_ARCH_ppc |
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151 # include "registerMap_ppc.hpp" |
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152 #endif |
| 1972 | 153 |
| 0 | 154 }; |
| 1972 | 155 |
| 156 #endif // SHARE_VM_RUNTIME_REGISTERMAP_HPP |