Mercurial > hg > graal-jvmci-8
annotate src/share/vm/compiler/abstractCompiler.cpp @ 2077:781072b12368
6765546: Wrong sscanf used to parse CompilerOracle command >= 32 characters could lead to crash
Reviewed-by: kvn, iveresov
author | never |
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date | Tue, 14 Dec 2010 23:17:00 -0800 |
parents | f95d63e2154a |
children | 68c5a4e8881d |
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0 | 1 // |
1972 | 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 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "compiler/abstractCompiler.hpp" | |
27 #include "runtime/mutexLocker.hpp" | |
0 | 28 void AbstractCompiler::initialize_runtimes(initializer f, volatile int* state) { |
29 if (*state != initialized) { | |
30 | |
31 // We are thread in native here... | |
32 CompilerThread* thread = CompilerThread::current(); | |
33 bool do_initialization = false; | |
34 { | |
35 ThreadInVMfromNative tv(thread); | |
36 MutexLocker only_one(CompileThread_lock, thread); | |
37 if ( *state == uninitialized) { | |
38 do_initialization = true; | |
39 *state = initializing; | |
40 } else { | |
41 while (*state == initializing ) { | |
42 CompileThread_lock->wait(); | |
43 } | |
44 } | |
45 } | |
46 if (do_initialization) { | |
47 // We can not hold any locks here since JVMTI events may call agents | |
48 | |
49 // Compiler(s) run as native | |
50 | |
51 (*f)(); | |
52 | |
53 // To in_vm so we can use the lock | |
54 | |
55 ThreadInVMfromNative tv(thread); | |
56 MutexLocker only_one(CompileThread_lock, thread); | |
57 assert(*state == initializing, "wrong state"); | |
58 *state = initialized; | |
59 CompileThread_lock->notify_all(); | |
60 } | |
61 } | |
62 } |