Mercurial > hg > truffle
annotate src/share/vm/ci/ciType.cpp @ 6972:bd7a7ce2e264
6830717: replay of compilations would help with debugging
Summary: When java process crashed in compiler thread, repeat the compilation process will help finding root cause. This is done with using SA dump application class data and replay data from core dump, then use debug version of jvm to recompile the problematic java method.
Reviewed-by: kvn, twisti, sspitsyn
Contributed-by: yumin.qi@oracle.com
| author | minqi |
|---|---|
| date | Mon, 12 Nov 2012 14:03:53 -0800 |
| parents | da91efe96a93 |
| children | 070d523b96a7 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2000, 2012, 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 #include "precompiled.hpp" |
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26 #include "ci/ciEnv.hpp" |
| 1972 | 27 #include "ci/ciType.hpp" |
| 28 #include "ci/ciUtilities.hpp" | |
| 29 #include "classfile/systemDictionary.hpp" | |
| 30 #include "oops/oop.inline.hpp" | |
| 0 | 31 |
| 32 ciType* ciType::_basic_types[T_CONFLICT+1]; | |
| 33 | |
| 34 // ciType | |
| 35 // | |
| 36 // This class represents either a class (T_OBJECT), array (T_ARRAY), | |
| 37 // or one of the primitive types such as T_INT. | |
| 38 | |
| 39 // ------------------------------------------------------------------ | |
| 40 // ciType::ciType | |
| 41 // | |
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42 ciType::ciType(BasicType basic_type) : ciMetadata() { |
| 0 | 43 assert(basic_type >= T_BOOLEAN && basic_type <= T_CONFLICT, "range check"); |
| 44 _basic_type = basic_type; | |
| 45 } | |
| 46 | |
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47 ciType::ciType(KlassHandle k) : ciMetadata(k()) { |
| 0 | 48 _basic_type = Klass::cast(k())->oop_is_array() ? T_ARRAY : T_OBJECT; |
| 49 } | |
| 50 | |
| 51 | |
| 52 // ------------------------------------------------------------------ | |
| 53 // ciType::is_subtype_of | |
| 54 // | |
| 55 bool ciType::is_subtype_of(ciType* type) { | |
| 56 if (this == type) return true; | |
| 57 if (is_klass() && type->is_klass()) | |
| 58 return this->as_klass()->is_subtype_of(type->as_klass()); | |
| 59 return false; | |
| 60 } | |
| 61 | |
| 62 // ------------------------------------------------------------------ | |
| 63 // ciType::print_impl | |
| 64 // | |
| 65 // Implementation of the print method. | |
| 66 void ciType::print_impl(outputStream* st) { | |
| 67 st->print(" type="); | |
| 68 print_name_on(st); | |
| 69 } | |
| 70 | |
| 71 // ------------------------------------------------------------------ | |
| 72 // ciType::print_name | |
| 73 // | |
| 74 // Print the name of this type | |
| 75 void ciType::print_name_on(outputStream* st) { | |
| 76 st->print(type2name(basic_type())); | |
| 77 } | |
| 78 | |
| 79 | |
| 80 | |
| 81 // ------------------------------------------------------------------ | |
| 82 // ciType::java_mirror | |
| 83 // | |
| 84 ciInstance* ciType::java_mirror() { | |
| 85 VM_ENTRY_MARK; | |
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86 return CURRENT_THREAD_ENV->get_instance(Universe::java_mirror(basic_type())); |
| 0 | 87 } |
| 88 | |
| 89 // ------------------------------------------------------------------ | |
| 90 // ciType::box_klass | |
| 91 // | |
| 92 ciKlass* ciType::box_klass() { | |
| 93 if (!is_primitive_type()) return this->as_klass(); // reference types are "self boxing" | |
| 94 | |
| 95 // Void is "boxed" with a null. | |
| 96 if (basic_type() == T_VOID) return NULL; | |
| 97 | |
| 98 VM_ENTRY_MARK; | |
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99 return CURRENT_THREAD_ENV->get_instance_klass(SystemDictionary::box_klass(basic_type())); |
| 0 | 100 } |
| 101 | |
| 102 | |
| 103 // ------------------------------------------------------------------ | |
| 104 // ciType::make | |
| 105 // | |
| 106 // Produce the ciType for a given primitive BasicType. | |
| 107 // As a bonus, produce the right reference type for T_OBJECT. | |
| 108 // Does not work on T_ARRAY. | |
| 109 ciType* ciType::make(BasicType t) { | |
| 110 // short, etc. | |
| 111 // Note: Bare T_ADDRESS means a raw pointer type, not a return_address. | |
| 112 assert((uint)t < T_CONFLICT+1, "range check"); | |
| 1142 | 113 if (t == T_OBJECT) return ciEnv::_Object_klass; // java/lang/Object |
| 0 | 114 assert(_basic_types[t] != NULL, "domain check"); |
| 115 return _basic_types[t]; | |
| 116 } | |
| 117 | |
| 118 // ciReturnAddress | |
| 119 // | |
| 120 // This class represents the type of a specific return address in the | |
| 121 // bytecodes. | |
| 122 | |
| 123 // ------------------------------------------------------------------ | |
| 124 // ciReturnAddress::ciReturnAddress | |
| 125 // | |
| 126 ciReturnAddress::ciReturnAddress(int bci) : ciType(T_ADDRESS) { | |
| 127 assert(0 <= bci, "bci cannot be negative"); | |
| 128 _bci = bci; | |
| 129 } | |
| 130 | |
| 131 // ------------------------------------------------------------------ | |
| 132 // ciReturnAddress::print_impl | |
| 133 // | |
| 134 // Implementation of the print method. | |
| 135 void ciReturnAddress::print_impl(outputStream* st) { | |
| 136 st->print(" bci=%d", _bci); | |
| 137 } | |
| 138 | |
| 139 // ------------------------------------------------------------------ | |
| 140 // ciReturnAddress::make | |
| 141 ciReturnAddress* ciReturnAddress::make(int bci) { | |
| 142 GUARDED_VM_ENTRY(return CURRENT_ENV->get_return_address(bci);) | |
| 143 } |