Mercurial > hg > graal-compiler
annotate src/share/vm/memory/iterator.cpp @ 1959:9eecf81a02fb
7000578: CMS: assert(SafepointSynchronize::is_at_safepoint()) failed: Else races are possible
Summary: Weakened assert in onj_is_alive() to allow its use at initialization time when is_at_safepoint() normally reports false; added some related asserts to check order of is_init_completed() after Universe::is_fully_initialized().
Reviewed-by: jcoomes
author | ysr |
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date | Tue, 16 Nov 2010 13:58:48 -0800 |
parents | e9ff18c4ace7 |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
1579 | 2 * Copyright (c) 1997, 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/_iterator.cpp.incl" | |
27 | |
935 | 28 #ifdef ASSERT |
29 bool OopClosure::_must_remember_klasses = false; | |
30 #endif | |
31 | |
0 | 32 void ObjectToOopClosure::do_object(oop obj) { |
33 obj->oop_iterate(_cl); | |
34 } | |
35 | |
36 void VoidClosure::do_void() { | |
37 ShouldNotCallThis(); | |
38 } | |
935 | 39 |
40 #ifdef ASSERT | |
41 bool OopClosure::must_remember_klasses() { | |
42 return _must_remember_klasses; | |
43 } | |
44 void OopClosure::set_must_remember_klasses(bool v) { | |
45 _must_remember_klasses = v; | |
46 } | |
47 #endif | |
48 | |
993 | 49 |
989 | 50 MarkingCodeBlobClosure::MarkScope::MarkScope(bool activate) |
51 : _active(activate) | |
52 { | |
53 if (_active) nmethod::oops_do_marking_prologue(); | |
54 } | |
55 | |
56 MarkingCodeBlobClosure::MarkScope::~MarkScope() { | |
57 if (_active) nmethod::oops_do_marking_epilogue(); | |
58 } | |
59 | |
60 void MarkingCodeBlobClosure::do_code_blob(CodeBlob* cb) { | |
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61 nmethod* nm = cb->as_nmethod_or_null(); |
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62 if (nm == NULL) return; |
989 | 63 if (!nm->test_set_oops_do_mark()) { |
64 NOT_PRODUCT(if (TraceScavenge) nm->print_on(tty, "oops_do, 1st visit\n")); | |
65 do_newly_marked_nmethod(nm); | |
66 } else { | |
67 NOT_PRODUCT(if (TraceScavenge) nm->print_on(tty, "oops_do, skipped on 2nd visit\n")); | |
68 } | |
69 } | |
70 | |
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71 void CodeBlobToOopClosure::do_newly_marked_nmethod(nmethod* nm) { |
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72 nm->oops_do(_cl, /*do_strong_roots_only=*/ true); |
989 | 73 } |
74 | |
75 void CodeBlobToOopClosure::do_code_blob(CodeBlob* cb) { | |
76 if (!_do_marking) { | |
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77 nmethod* nm = cb->as_nmethod_or_null(); |
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78 NOT_PRODUCT(if (TraceScavenge && Verbose && nm != NULL) nm->print_on(tty, "oops_do, unmarked visit\n")); |
989 | 79 // This assert won't work, since there are lots of mini-passes |
80 // (mostly in debug mode) that co-exist with marking phases. | |
81 //assert(!(cb->is_nmethod() && ((nmethod*)cb)->test_oops_do_mark()), "found marked nmethod during mark-free phase"); | |
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82 if (nm != NULL) { |
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83 nm->oops_do(_cl); |
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84 } |
989 | 85 } else { |
86 MarkingCodeBlobClosure::do_code_blob(cb); | |
87 } | |
88 } | |
89 | |
90 |