Mercurial > hg > graal-compiler
comparison src/share/vm/utilities/decoder_elf.cpp @ 4803:d7e3846464d0
7071311: Decoder enhancement
Summary: Made decoder thread-safe
Reviewed-by: coleenp, kamg
author | zgu |
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date | Tue, 17 Jan 2012 13:08:52 -0500 |
parents | |
children | b9a9ed0f8eeb |
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4801:4f3ce9284781 | 4803:d7e3846464d0 |
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1 /* | |
2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. | |
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 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 * | |
23 */ | |
24 | |
25 #include "precompiled.hpp" | |
26 | |
27 #if !defined(_WINDOWS) && !defined(__APPLE__) | |
28 #include "decoder_elf.hpp" | |
29 | |
30 ElfDecoder::~ElfDecoder() { | |
31 if (_opened_elf_files != NULL) { | |
32 delete _opened_elf_files; | |
33 _opened_elf_files = NULL; | |
34 } | |
35 } | |
36 | |
37 bool ElfDecoder::decode(address addr, char *buf, int buflen, int* offset, const char* filepath) { | |
38 assert(filepath, "null file path"); | |
39 assert(buf != NULL && buflen > 0, "Invalid buffer"); | |
40 if (has_error()) return false; | |
41 ElfFile* file = get_elf_file(filepath); | |
42 if (file == NULL) { | |
43 return false; | |
44 } | |
45 | |
46 if (!file->decode(addr, buf, buflen, offset)) { | |
47 return false; | |
48 } | |
49 if (buf[0] != '\0') { | |
50 demangle(buf, buf, buflen); | |
51 } | |
52 return true; | |
53 } | |
54 | |
55 ElfFile* ElfDecoder::get_elf_file(const char* filepath) { | |
56 ElfFile* file; | |
57 | |
58 file = _opened_elf_files; | |
59 while (file != NULL) { | |
60 if (file->same_elf_file(filepath)) { | |
61 return file; | |
62 } | |
63 file = file->next(); | |
64 } | |
65 | |
66 file = new (std::nothrow)ElfFile(filepath); | |
67 if (file != NULL) { | |
68 if (_opened_elf_files != NULL) { | |
69 file->set_next(_opened_elf_files); | |
70 } | |
71 _opened_elf_files = file; | |
72 } | |
73 | |
74 return file; | |
75 } | |
76 #endif |