Mercurial > hg > truffle
annotate src/share/vm/oops/cpCacheKlass.cpp @ 6266:1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>
| author | twisti |
|---|---|
| date | Tue, 24 Jul 2012 10:51:00 -0700 |
| parents | baf763f388e6 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2227 | 2 * Copyright (c) 1998, 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 #include "precompiled.hpp" |
| 26 #include "classfile/javaClasses.hpp" | |
| 27 #include "gc_implementation/shared/markSweep.inline.hpp" | |
| 28 #include "gc_interface/collectedHeap.hpp" | |
| 29 #include "interpreter/bytecodes.hpp" | |
| 30 #include "memory/genOopClosures.inline.hpp" | |
| 31 #include "memory/permGen.hpp" | |
| 32 #include "oops/constantPoolOop.hpp" | |
| 33 #include "oops/cpCacheKlass.hpp" | |
| 34 #include "oops/oop.inline.hpp" | |
| 35 #include "runtime/handles.inline.hpp" | |
| 36 #ifndef SERIALGC | |
| 37 #include "gc_implementation/parNew/parOopClosures.inline.hpp" | |
| 38 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp" | |
| 39 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
| 40 #include "memory/cardTableRS.hpp" | |
| 41 #include "oops/oop.pcgc.inline.hpp" | |
| 42 #endif | |
| 0 | 43 |
| 44 | |
| 45 int constantPoolCacheKlass::oop_size(oop obj) const { | |
| 46 assert(obj->is_constantPoolCache(), "must be constantPool"); | |
| 47 return constantPoolCacheOop(obj)->object_size(); | |
| 48 } | |
| 49 | |
| 50 | |
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51 constantPoolCacheOop constantPoolCacheKlass::allocate(int length, |
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52 TRAPS) { |
| 0 | 53 // allocate memory |
| 54 int size = constantPoolCacheOopDesc::object_size(length); | |
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55 |
| 0 | 56 KlassHandle klass (THREAD, as_klassOop()); |
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57 |
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58 // Commented out below is the original code. The code from |
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59 // permanent_obj_allocate() was in-lined so that we could |
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60 // set the _length field, necessary to correctly compute its |
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61 // size(), before setting its klass word further below. |
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62 // constantPoolCacheOop cache = (constantPoolCacheOop) |
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63 // CollectedHeap::permanent_obj_allocate(klass, size, CHECK_NULL); |
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64 |
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65 oop obj = CollectedHeap::permanent_obj_allocate_no_klass_install(klass, size, CHECK_NULL); |
| 3892 | 66 #ifndef PRODUCT |
| 67 const size_t hs = oopDesc::header_size(); | |
| 68 Universe::heap()->check_for_bad_heap_word_value(((HeapWord*) obj)+hs, size-hs); | |
| 69 #endif | |
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70 constantPoolCacheOop cache = (constantPoolCacheOop) obj; |
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71 assert(!UseConcMarkSweepGC || obj->klass_or_null() == NULL, |
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72 "klass should be NULL here when using CMS"); |
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73 cache->set_length(length); // should become visible before klass is set below. |
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74 cache->set_constant_pool(NULL); |
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75 |
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76 OrderAccess::storestore(); |
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77 obj->set_klass(klass()); |
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78 assert(cache->size() == size, "Incorrect cache->size()"); |
| 0 | 79 return cache; |
| 80 } | |
| 81 | |
| 82 klassOop constantPoolCacheKlass::create_klass(TRAPS) { | |
| 83 constantPoolCacheKlass o; | |
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84 KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); |
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85 KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL); |
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86 // Make sure size calculation is right |
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87 assert(k()->size() == align_object_size(header_size()), "wrong size for object"); |
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88 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror |
| 0 | 89 return k(); |
| 90 } | |
| 91 | |
| 92 | |
| 93 void constantPoolCacheKlass::oop_follow_contents(oop obj) { | |
| 94 assert(obj->is_constantPoolCache(), "obj must be constant pool cache"); | |
| 95 constantPoolCacheOop cache = (constantPoolCacheOop)obj; | |
| 96 // Performance tweak: We skip iterating over the klass pointer since we | |
| 97 // know that Universe::constantPoolCacheKlassObj never moves. | |
| 98 // gc of constant pool cache instance variables | |
| 99 MarkSweep::mark_and_push((oop*)cache->constant_pool_addr()); | |
| 100 // gc of constant pool cache entries | |
| 101 int i = cache->length(); | |
| 102 while (i-- > 0) cache->entry_at(i)->follow_contents(); | |
| 103 } | |
| 104 | |
| 105 #ifndef SERIALGC | |
| 106 void constantPoolCacheKlass::oop_follow_contents(ParCompactionManager* cm, | |
| 107 oop obj) { | |
| 108 assert(obj->is_constantPoolCache(), "obj must be constant pool cache"); | |
| 109 constantPoolCacheOop cache = (constantPoolCacheOop)obj; | |
| 110 // Performance tweak: We skip iterating over the klass pointer since we | |
| 111 // know that Universe::constantPoolCacheKlassObj never moves. | |
| 112 // gc of constant pool cache instance variables | |
| 113 PSParallelCompact::mark_and_push(cm, (oop*)cache->constant_pool_addr()); | |
| 114 // gc of constant pool cache entries | |
| 115 int i = cache->length(); | |
| 116 while (i-- > 0) cache->entry_at(i)->follow_contents(cm); | |
| 117 } | |
| 118 #endif // SERIALGC | |
| 119 | |
| 120 | |
| 121 int constantPoolCacheKlass::oop_oop_iterate(oop obj, OopClosure* blk) { | |
| 122 assert(obj->is_constantPoolCache(), "obj must be constant pool cache"); | |
| 123 constantPoolCacheOop cache = (constantPoolCacheOop)obj; | |
| 124 // Get size before changing pointers. | |
| 125 // Don't call size() or oop_size() since that is a virtual call. | |
| 126 int size = cache->object_size(); | |
| 127 // Performance tweak: We skip iterating over the klass pointer since we | |
| 128 // know that Universe::constantPoolCacheKlassObj never moves. | |
| 129 // iteration over constant pool cache instance variables | |
| 130 blk->do_oop((oop*)cache->constant_pool_addr()); | |
| 131 // iteration over constant pool cache entries | |
| 132 for (int i = 0; i < cache->length(); i++) cache->entry_at(i)->oop_iterate(blk); | |
| 133 return size; | |
| 134 } | |
| 135 | |
| 136 | |
| 137 int constantPoolCacheKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { | |
| 138 assert(obj->is_constantPoolCache(), "obj must be constant pool cache"); | |
| 139 constantPoolCacheOop cache = (constantPoolCacheOop)obj; | |
| 140 // Get size before changing pointers. | |
| 141 // Don't call size() or oop_size() since that is a virtual call. | |
| 142 int size = cache->object_size(); | |
| 143 // Performance tweak: We skip iterating over the klass pointer since we | |
| 144 // know that Universe::constantPoolCacheKlassObj never moves. | |
| 145 // iteration over constant pool cache instance variables | |
| 146 oop* addr = (oop*)cache->constant_pool_addr(); | |
| 147 if (mr.contains(addr)) blk->do_oop(addr); | |
| 148 // iteration over constant pool cache entries | |
| 149 for (int i = 0; i < cache->length(); i++) cache->entry_at(i)->oop_iterate_m(blk, mr); | |
| 150 return size; | |
| 151 } | |
| 152 | |
| 153 int constantPoolCacheKlass::oop_adjust_pointers(oop obj) { | |
| 154 assert(obj->is_constantPoolCache(), "obj must be constant pool cache"); | |
| 155 constantPoolCacheOop cache = (constantPoolCacheOop)obj; | |
| 156 // Get size before changing pointers. | |
| 157 // Don't call size() or oop_size() since that is a virtual call. | |
| 158 int size = cache->object_size(); | |
| 159 // Performance tweak: We skip iterating over the klass pointer since we | |
| 160 // know that Universe::constantPoolCacheKlassObj never moves. | |
| 161 // Iteration over constant pool cache instance variables | |
| 162 MarkSweep::adjust_pointer((oop*)cache->constant_pool_addr()); | |
| 163 // iteration over constant pool cache entries | |
| 164 for (int i = 0; i < cache->length(); i++) | |
| 165 cache->entry_at(i)->adjust_pointers(); | |
| 166 return size; | |
| 167 } | |
| 168 | |
| 169 #ifndef SERIALGC | |
| 170 void constantPoolCacheKlass::oop_push_contents(PSPromotionManager* pm, | |
| 171 oop obj) { | |
| 172 assert(obj->is_constantPoolCache(), "should be constant pool"); | |
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173 if (ScavengeRootsInCode) { |
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174 constantPoolCacheOop cache = (constantPoolCacheOop)obj; |
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175 // during a scavenge, it is safe to inspect my pool, since it is perm |
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176 constantPoolOop pool = cache->constant_pool(); |
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177 assert(pool->is_constantPool(), "should be constant pool"); |
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178 for (int i = 0; i < cache->length(); i++) { |
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179 ConstantPoolCacheEntry* e = cache->entry_at(i); |
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180 oop* p = (oop*)&e->_f1; |
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181 if (PSScavenge::should_scavenge(p)) |
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182 pm->claim_or_forward_depth(p); |
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183 assert(!(e->is_vfinal() && PSScavenge::should_scavenge((oop*)&e->_f2)), |
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184 "no live oops here"); |
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185 } |
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186 } |
| 0 | 187 } |
| 188 | |
| 189 int | |
| 190 constantPoolCacheKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
| 191 assert(obj->is_constantPoolCache(), "obj must be constant pool cache"); | |
| 192 constantPoolCacheOop cache = (constantPoolCacheOop)obj; | |
| 193 | |
| 194 // Iteration over constant pool cache instance variables | |
| 195 PSParallelCompact::adjust_pointer((oop*)cache->constant_pool_addr()); | |
| 196 | |
| 197 // iteration over constant pool cache entries | |
| 198 for (int i = 0; i < cache->length(); ++i) { | |
| 199 cache->entry_at(i)->update_pointers(); | |
| 200 } | |
| 201 | |
| 202 return cache->object_size(); | |
| 203 } | |
| 204 #endif // SERIALGC | |
| 205 | |
| 206 void constantPoolCacheKlass::oop_print_on(oop obj, outputStream* st) { | |
| 207 assert(obj->is_constantPoolCache(), "obj must be constant pool cache"); | |
| 208 constantPoolCacheOop cache = (constantPoolCacheOop)obj; | |
| 209 // super print | |
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210 Klass::oop_print_on(obj, st); |
| 0 | 211 // print constant pool cache entries |
| 212 for (int i = 0; i < cache->length(); i++) cache->entry_at(i)->print(st, i); | |
| 213 } | |
| 214 | |
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215 void constantPoolCacheKlass::oop_print_value_on(oop obj, outputStream* st) { |
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216 assert(obj->is_constantPoolCache(), "obj must be constant pool cache"); |
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217 constantPoolCacheOop cache = (constantPoolCacheOop)obj; |
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218 st->print("cache [%d]", cache->length()); |
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219 cache->print_address_on(st); |
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220 st->print(" for "); |
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221 cache->constant_pool()->print_value_on(st); |
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222 } |
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223 |
| 0 | 224 void constantPoolCacheKlass::oop_verify_on(oop obj, outputStream* st) { |
| 225 guarantee(obj->is_constantPoolCache(), "obj must be constant pool cache"); | |
| 226 constantPoolCacheOop cache = (constantPoolCacheOop)obj; | |
| 227 // super verify | |
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228 Klass::oop_verify_on(obj, st); |
| 0 | 229 // print constant pool cache entries |
| 230 for (int i = 0; i < cache->length(); i++) cache->entry_at(i)->verify(st); | |
| 231 } | |
| 232 | |
| 233 | |
| 234 const char* constantPoolCacheKlass::internal_name() const { | |
| 235 return "{constant pool cache}"; | |
| 236 } |