Mercurial > hg > graal-compiler
annotate src/share/vm/gc_implementation/concurrentMarkSweep/cmsPermGen.cpp @ 1903:87d6a4d1ecbc
6990192: VM crashes in ciTypeFlow::get_block_for()
Reviewed-by: never
author | twisti |
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date | Tue, 19 Oct 2010 02:52:57 -0700 |
parents | e41cd7fd68a6 |
children | f95d63e2154a |
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0 | 1 /* |
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2 * Copyright (c) 2007, 2010, 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 | |
25 #include "incls/_precompiled.incl" | |
26 #include "incls/_cmsPermGen.cpp.incl" | |
27 | |
28 CMSPermGen::CMSPermGen(ReservedSpace rs, size_t initial_byte_size, | |
29 CardTableRS* ct, | |
30 FreeBlockDictionary::DictionaryChoice dictionaryChoice) { | |
31 CMSPermGenGen* g = | |
32 new CMSPermGenGen(rs, initial_byte_size, -1, ct); | |
33 if (g == NULL) { | |
34 vm_exit_during_initialization("Could not allocate a CompactingPermGen"); | |
35 } | |
36 | |
37 g->initialize_performance_counters(); | |
38 | |
39 _gen = g; | |
40 } | |
41 | |
42 HeapWord* CMSPermGen::mem_allocate(size_t size) { | |
43 Mutex* lock = _gen->freelistLock(); | |
44 bool lock_owned = lock->owned_by_self(); | |
45 if (lock_owned) { | |
46 MutexUnlocker mul(lock); | |
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47 return mem_allocate_in_gen(size, _gen); |
0 | 48 } else { |
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49 return mem_allocate_in_gen(size, _gen); |
0 | 50 } |
51 } | |
52 | |
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53 HeapWord* CMSPermGen::request_expand_and_allocate(Generation* gen, |
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54 size_t size, |
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55 GCCause::Cause prev_cause /* ignored */) { |
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56 HeapWord* obj = gen->expand_and_allocate(size, false); |
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57 if (gen->capacity() >= _capacity_expansion_limit) { |
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58 set_capacity_expansion_limit(gen->capacity() + MaxPermHeapExpansion); |
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59 assert(((ConcurrentMarkSweepGeneration*)gen)->should_concurrent_collect(), |
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60 "Should kick off a collection if one not in progress"); |
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61 } |
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62 return obj; |
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63 } |
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64 |
0 | 65 void CMSPermGen::compute_new_size() { |
66 _gen->compute_new_size(); | |
67 } | |
68 | |
69 void CMSPermGenGen::initialize_performance_counters() { | |
70 | |
71 const char* gen_name = "perm"; | |
72 | |
73 // Generation Counters - generation 2, 1 subspace | |
74 _gen_counters = new GenerationCounters(gen_name, 2, 1, &_virtual_space); | |
75 | |
76 _gc_counters = NULL; | |
77 | |
78 _space_counters = new GSpaceCounters(gen_name, 0, | |
79 _virtual_space.reserved_size(), | |
80 this, _gen_counters); | |
81 } |