Mercurial > hg > graal-jvmci-8
annotate src/share/vm/gc_implementation/g1/heapRegionSeq.inline.hpp @ 1779:6eddcbe17c83
6981746: G1: SEGV with -XX:+TraceGen0Time
Summary: Pass correct value for length to NumberSeq constructor. Guard dereferences of "body_summary" pointer with a NULL check.
Reviewed-by: tonyp, ysr
author | johnc |
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date | Mon, 13 Sep 2010 10:00:24 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
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342 | 1 /* |
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2 * Copyright (c) 2001, 2007, 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 |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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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 | |
25 inline HeapRegion* HeapRegionSeq::addr_to_region(const void* addr) { | |
26 assert(_seq_bottom != NULL, "bad _seq_bottom in addr_to_region"); | |
27 if ((char*) addr >= _seq_bottom) { | |
28 size_t diff = (size_t) pointer_delta((HeapWord*) addr, | |
29 (HeapWord*) _seq_bottom); | |
30 int index = (int) (diff >> HeapRegion::LogOfHRGrainWords); | |
31 assert(index >= 0, "invariant / paranoia"); | |
32 if (index < _regions.length()) { | |
33 HeapRegion* hr = _regions.at(index); | |
34 assert(hr->is_in_reserved(addr), | |
35 "addr_to_region is wrong..."); | |
36 return hr; | |
37 } | |
38 } | |
39 return NULL; | |
40 } |