Mercurial > hg > graal-jvmci-8
annotate src/share/vm/gc_implementation/g1/g1OopClosures.hpp @ 20211:82693fb204a5
8038930: G1CodeRootSet::test fails with assert(_num_chunks_handed_out == 0) failed: No elements must have been handed out yet
Summary: The test incorrectly assumed that it had been started with no other previous compilation activity. Fix this by allowing multiple code root free chunk lists, and use one separate from the global one to perform the test.
Reviewed-by: brutisso
author | tschatzl |
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date | Wed, 16 Apr 2014 10:14:50 +0200 |
parents | 8847586c9037 |
children | 52b4284cb496 cd43876f692e |
rev | line source |
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342 | 1 /* |
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2 * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved. |
342 | 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. |
342 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1OOPCLOSURES_HPP |
26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1OOPCLOSURES_HPP | |
27 | |
342 | 28 class HeapRegion; |
29 class G1CollectedHeap; | |
30 class G1RemSet; | |
31 class ConcurrentMark; | |
32 class DirtyCardToOopClosure; | |
33 class CMBitMap; | |
34 class CMMarkStack; | |
35 class G1ParScanThreadState; | |
3771 | 36 class CMTask; |
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37 class ReferenceProcessor; |
342 | 38 |
39 // A class that scans oops in a given heap region (much as OopsInGenClosure | |
40 // scans oops in a generation.) | |
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41 class OopsInHeapRegionClosure: public ExtendedOopClosure { |
342 | 42 protected: |
43 HeapRegion* _from; | |
44 public: | |
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45 void set_region(HeapRegion* from) { _from = from; } |
342 | 46 }; |
47 | |
48 class G1ParClosureSuper : public OopsInHeapRegionClosure { | |
49 protected: | |
50 G1CollectedHeap* _g1; | |
51 G1ParScanThreadState* _par_scan_state; | |
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52 uint _worker_id; |
342 | 53 public: |
54 G1ParClosureSuper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state); | |
55 bool apply_to_weak_ref_discovered_field() { return true; } | |
56 }; | |
57 | |
1261 | 58 class G1ParPushHeapRSClosure : public G1ParClosureSuper { |
59 public: | |
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60 G1ParPushHeapRSClosure(G1CollectedHeap* g1, |
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61 G1ParScanThreadState* par_scan_state): |
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62 G1ParClosureSuper(g1, par_scan_state) { } |
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63 |
1261 | 64 template <class T> void do_oop_nv(T* p); |
65 virtual void do_oop(oop* p) { do_oop_nv(p); } | |
66 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } | |
67 }; | |
68 | |
342 | 69 class G1ParScanClosure : public G1ParClosureSuper { |
70 public: | |
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71 G1ParScanClosure(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state, ReferenceProcessor* rp) : |
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72 G1ParClosureSuper(g1, par_scan_state) |
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73 { |
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74 assert(_ref_processor == NULL, "sanity"); |
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75 _ref_processor = rp; |
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76 } |
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77 |
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78 template <class T> void do_oop_nv(T* p); |
342 | 79 virtual void do_oop(oop* p) { do_oop_nv(p); } |
80 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } | |
81 }; | |
82 | |
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83 // Add back base class for metadata |
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84 class G1ParCopyHelper : public G1ParClosureSuper { |
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85 protected: |
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86 Klass* _scanned_klass; |
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87 ConcurrentMark* _cm; |
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88 |
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89 // Mark the object if it's not already marked. This is used to mark |
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90 // objects pointed to by roots that are guaranteed not to move |
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91 // during the GC (i.e., non-CSet objects). It is MT-safe. |
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92 void mark_object(oop obj); |
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93 |
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94 // Mark the object if it's not already marked. This is used to mark |
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95 // objects pointed to by roots that have been forwarded during a |
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96 // GC. It is MT-safe. |
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97 void mark_forwarded_object(oop from_obj, oop to_obj); |
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98 public: |
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99 G1ParCopyHelper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state); |
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100 |
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101 void set_scanned_klass(Klass* k) { _scanned_klass = k; } |
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102 template <class T> void do_klass_barrier(T* p, oop new_obj); |
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103 }; |
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104 |
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105 template <G1Barrier barrier, bool do_mark_object> |
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106 class G1ParCopyClosure : public G1ParCopyHelper { |
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107 private: |
5987 | 108 template <class T> void do_oop_work(T* p); |
342 | 109 |
110 public: | |
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111 G1ParCopyClosure(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state, |
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112 ReferenceProcessor* rp) : |
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113 G1ParCopyHelper(g1, par_scan_state) { |
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114 assert(_ref_processor == NULL, "sanity"); |
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115 } |
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116 |
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117 template <class T> void do_oop_nv(T* p) { do_oop_work(p); } |
342 | 118 virtual void do_oop(oop* p) { do_oop_nv(p); } |
119 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } | |
120 }; | |
121 | |
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122 typedef G1ParCopyClosure<G1BarrierNone, false> G1ParScanExtRootClosure; |
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123 typedef G1ParCopyClosure<G1BarrierKlass, false> G1ParScanMetadataClosure; |
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124 |
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125 |
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126 typedef G1ParCopyClosure<G1BarrierNone, true> G1ParScanAndMarkExtRootClosure; |
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127 typedef G1ParCopyClosure<G1BarrierKlass, true> G1ParScanAndMarkMetadataClosure; |
1261 | 128 |
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129 // We use a separate closure to handle references during evacuation |
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130 // failure processing. |
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131 |
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132 typedef G1ParCopyClosure<G1BarrierEvac, false> G1ParScanHeapEvacFailureClosure; |
342 | 133 |
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134 class FilterIntoCSClosure: public ExtendedOopClosure { |
342 | 135 G1CollectedHeap* _g1; |
136 OopClosure* _oc; | |
137 DirtyCardToOopClosure* _dcto_cl; | |
138 public: | |
139 FilterIntoCSClosure( DirtyCardToOopClosure* dcto_cl, | |
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140 G1CollectedHeap* g1, |
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141 OopClosure* oc) : |
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142 _dcto_cl(dcto_cl), _g1(g1), _oc(oc) { } |
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143 |
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144 template <class T> void do_oop_nv(T* p); |
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145 virtual void do_oop(oop* p) { do_oop_nv(p); } |
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146 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } |
342 | 147 bool apply_to_weak_ref_discovered_field() { return true; } |
148 }; | |
149 | |
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150 class FilterOutOfRegionClosure: public ExtendedOopClosure { |
342 | 151 HeapWord* _r_bottom; |
152 HeapWord* _r_end; | |
153 OopClosure* _oc; | |
154 public: | |
155 FilterOutOfRegionClosure(HeapRegion* r, OopClosure* oc); | |
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156 template <class T> void do_oop_nv(T* p); |
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157 virtual void do_oop(oop* p) { do_oop_nv(p); } |
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158 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } |
342 | 159 bool apply_to_weak_ref_discovered_field() { return true; } |
160 }; | |
1972 | 161 |
3771 | 162 // Closure for iterating over object fields during concurrent marking |
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163 class G1CMOopClosure : public ExtendedOopClosure { |
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164 private: |
3771 | 165 G1CollectedHeap* _g1h; |
166 ConcurrentMark* _cm; | |
167 CMTask* _task; | |
168 public: | |
169 G1CMOopClosure(G1CollectedHeap* g1h, ConcurrentMark* cm, CMTask* task); | |
170 template <class T> void do_oop_nv(T* p); | |
171 virtual void do_oop( oop* p) { do_oop_nv(p); } | |
172 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } | |
173 }; | |
174 | |
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175 // Closure to scan the root regions during concurrent marking |
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176 class G1RootRegionScanClosure : public ExtendedOopClosure { |
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177 private: |
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178 G1CollectedHeap* _g1h; |
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179 ConcurrentMark* _cm; |
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180 uint _worker_id; |
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181 public: |
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182 G1RootRegionScanClosure(G1CollectedHeap* g1h, ConcurrentMark* cm, |
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183 uint worker_id) : |
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184 _g1h(g1h), _cm(cm), _worker_id(worker_id) { } |
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185 template <class T> void do_oop_nv(T* p); |
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186 virtual void do_oop( oop* p) { do_oop_nv(p); } |
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187 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } |
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188 }; |
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189 |
4839 | 190 // Closure that applies the given two closures in sequence. |
191 // Used by the RSet refinement code (when updating RSets | |
192 // during an evacuation pause) to record cards containing | |
193 // pointers into the collection set. | |
194 | |
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195 class G1Mux2Closure : public ExtendedOopClosure { |
4839 | 196 OopClosure* _c1; |
197 OopClosure* _c2; | |
198 public: | |
199 G1Mux2Closure(OopClosure *c1, OopClosure *c2); | |
200 template <class T> void do_oop_nv(T* p); | |
201 virtual void do_oop(oop* p) { do_oop_nv(p); } | |
202 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } | |
203 }; | |
204 | |
205 // A closure that returns true if it is actually applied | |
206 // to a reference | |
207 | |
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208 class G1TriggerClosure : public ExtendedOopClosure { |
4839 | 209 bool _triggered; |
210 public: | |
211 G1TriggerClosure(); | |
212 bool triggered() const { return _triggered; } | |
213 template <class T> void do_oop_nv(T* p); | |
214 virtual void do_oop(oop* p) { do_oop_nv(p); } | |
215 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } | |
216 }; | |
217 | |
218 // A closure which uses a triggering closure to determine | |
219 // whether to apply an oop closure. | |
220 | |
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221 class G1InvokeIfNotTriggeredClosure: public ExtendedOopClosure { |
4839 | 222 G1TriggerClosure* _trigger_cl; |
223 OopClosure* _oop_cl; | |
224 public: | |
225 G1InvokeIfNotTriggeredClosure(G1TriggerClosure* t, OopClosure* oc); | |
226 template <class T> void do_oop_nv(T* p); | |
227 virtual void do_oop(oop* p) { do_oop_nv(p); } | |
228 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } | |
229 }; | |
230 | |
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231 class G1UpdateRSOrPushRefOopClosure: public ExtendedOopClosure { |
4839 | 232 G1CollectedHeap* _g1; |
233 G1RemSet* _g1_rem_set; | |
234 HeapRegion* _from; | |
235 OopsInHeapRegionClosure* _push_ref_cl; | |
236 bool _record_refs_into_cset; | |
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237 uint _worker_i; |
4839 | 238 |
239 public: | |
240 G1UpdateRSOrPushRefOopClosure(G1CollectedHeap* g1h, | |
241 G1RemSet* rs, | |
242 OopsInHeapRegionClosure* push_ref_cl, | |
243 bool record_refs_into_cset, | |
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244 uint worker_i = 0); |
4839 | 245 |
246 void set_from(HeapRegion* from) { | |
247 assert(from != NULL, "from region must be non-NULL"); | |
248 _from = from; | |
249 } | |
250 | |
251 bool self_forwarded(oop obj) { | |
252 bool result = (obj->is_forwarded() && (obj->forwardee()== obj)); | |
253 return result; | |
254 } | |
255 | |
256 bool apply_to_weak_ref_discovered_field() { return true; } | |
257 | |
258 template <class T> void do_oop_nv(T* p); | |
259 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } | |
260 virtual void do_oop(oop* p) { do_oop_nv(p); } | |
261 }; | |
262 | |
1972 | 263 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1OOPCLOSURES_HPP |