Mercurial > hg > graal-jvmci-8
annotate src/share/vm/classfile/classFileStream.cpp @ 1677:a5c9d63a187d
6964170: Verifier crashes
Summary: Check if klassOop != NULL rather than klass_part != NULL
Reviewed-by: kamg, never
author | apangin |
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date | Tue, 20 Jul 2010 08:41:42 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2005, 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 |
c18cbe5936b8
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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/_classFileStream.cpp.incl" | |
27 | |
28 void ClassFileStream::truncated_file_error(TRAPS) { | |
29 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), "Truncated class file"); | |
30 } | |
31 | |
32 ClassFileStream::ClassFileStream(u1* buffer, int length, char* source) { | |
33 _buffer_start = buffer; | |
34 _buffer_end = buffer + length; | |
35 _current = buffer; | |
36 _source = source; | |
37 _need_verify = false; | |
38 } | |
39 | |
40 u1 ClassFileStream::get_u1(TRAPS) { | |
41 if (_need_verify) { | |
42 guarantee_more(1, CHECK_0); | |
43 } else { | |
44 assert(1 <= _buffer_end - _current, "buffer overflow"); | |
45 } | |
46 return *_current++; | |
47 } | |
48 | |
49 u2 ClassFileStream::get_u2(TRAPS) { | |
50 if (_need_verify) { | |
51 guarantee_more(2, CHECK_0); | |
52 } else { | |
53 assert(2 <= _buffer_end - _current, "buffer overflow"); | |
54 } | |
55 u1* tmp = _current; | |
56 _current += 2; | |
57 return Bytes::get_Java_u2(tmp); | |
58 } | |
59 | |
60 u4 ClassFileStream::get_u4(TRAPS) { | |
61 if (_need_verify) { | |
62 guarantee_more(4, CHECK_0); | |
63 } else { | |
64 assert(4 <= _buffer_end - _current, "buffer overflow"); | |
65 } | |
66 u1* tmp = _current; | |
67 _current += 4; | |
68 return Bytes::get_Java_u4(tmp); | |
69 } | |
70 | |
71 u8 ClassFileStream::get_u8(TRAPS) { | |
72 if (_need_verify) { | |
73 guarantee_more(8, CHECK_0); | |
74 } else { | |
75 assert(8 <= _buffer_end - _current, "buffer overflow"); | |
76 } | |
77 u1* tmp = _current; | |
78 _current += 8; | |
79 return Bytes::get_Java_u8(tmp); | |
80 } | |
81 | |
82 void ClassFileStream::skip_u1(int length, TRAPS) { | |
83 if (_need_verify) { | |
84 guarantee_more(length, CHECK); | |
85 } | |
86 _current += length; | |
87 } | |
88 | |
89 void ClassFileStream::skip_u2(int length, TRAPS) { | |
90 if (_need_verify) { | |
91 guarantee_more(length * 2, CHECK); | |
92 } | |
93 _current += length * 2; | |
94 } |