Mercurial > jdk8-mips64-public > hotspot / annotate
src/share/vm/classfile/classFileStream.cpp@ede380e13960 (annotated)
src/share/vm/classfile/classFileStream.cpp
Tue, 02 Apr 2013 11:28:33 +0200
- author
- mgerdin
- date
- Tue, 02 Apr 2013 11:28:33 +0200
- changeset 4850
- ede380e13960
- parent 4398
- ade95d680b42
- child 6198
- 55fb97c4c58d
- permissions
- -rw-r--r--
8009763: Add WB test for String.intern()
Summary: Add convenience method in StringTable, add WhiteBox method and simple sanity test
Reviewed-by: mgerdin, zgu
Contributed-by: leonid.mesnik@oracle.com
| duke@435 | 1 | /* |
| stefank@2314 | 2 | * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
| duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| duke@435 | 4 | * |
| duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
| duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| duke@435 | 7 | * published by the Free Software Foundation. |
| duke@435 | 8 | * |
| duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| duke@435 | 13 | * accompanied this code). |
| duke@435 | 14 | * |
| duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
| duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| duke@435 | 18 | * |
| trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
| trims@1907 | 21 | * questions. |
| duke@435 | 22 | * |
| duke@435 | 23 | */ |
| duke@435 | 24 | |
| stefank@2314 | 25 | #include "precompiled.hpp" |
| stefank@2314 | 26 | #include "classfile/classFileStream.hpp" |
| stefank@2314 | 27 | #include "classfile/vmSymbols.hpp" |
| duke@435 | 28 | |
| duke@435 | 29 | void ClassFileStream::truncated_file_error(TRAPS) { |
| duke@435 | 30 | THROW_MSG(vmSymbols::java_lang_ClassFormatError(), "Truncated class file"); |
| duke@435 | 31 | } |
| duke@435 | 32 | |
| duke@435 | 33 | ClassFileStream::ClassFileStream(u1* buffer, int length, char* source) { |
| duke@435 | 34 | _buffer_start = buffer; |
| duke@435 | 35 | _buffer_end = buffer + length; |
| duke@435 | 36 | _current = buffer; |
| duke@435 | 37 | _source = source; |
| duke@435 | 38 | _need_verify = false; |
| duke@435 | 39 | } |
| duke@435 | 40 | |
| duke@435 | 41 | u1 ClassFileStream::get_u1(TRAPS) { |
| duke@435 | 42 | if (_need_verify) { |
| duke@435 | 43 | guarantee_more(1, CHECK_0); |
| duke@435 | 44 | } else { |
| duke@435 | 45 | assert(1 <= _buffer_end - _current, "buffer overflow"); |
| duke@435 | 46 | } |
| duke@435 | 47 | return *_current++; |
| duke@435 | 48 | } |
| duke@435 | 49 | |
| duke@435 | 50 | u2 ClassFileStream::get_u2(TRAPS) { |
| duke@435 | 51 | if (_need_verify) { |
| duke@435 | 52 | guarantee_more(2, CHECK_0); |
| duke@435 | 53 | } else { |
| duke@435 | 54 | assert(2 <= _buffer_end - _current, "buffer overflow"); |
| duke@435 | 55 | } |
| duke@435 | 56 | u1* tmp = _current; |
| duke@435 | 57 | _current += 2; |
| duke@435 | 58 | return Bytes::get_Java_u2(tmp); |
| duke@435 | 59 | } |
| duke@435 | 60 | |
| duke@435 | 61 | u4 ClassFileStream::get_u4(TRAPS) { |
| duke@435 | 62 | if (_need_verify) { |
| duke@435 | 63 | guarantee_more(4, CHECK_0); |
| duke@435 | 64 | } else { |
| duke@435 | 65 | assert(4 <= _buffer_end - _current, "buffer overflow"); |
| duke@435 | 66 | } |
| duke@435 | 67 | u1* tmp = _current; |
| duke@435 | 68 | _current += 4; |
| duke@435 | 69 | return Bytes::get_Java_u4(tmp); |
| duke@435 | 70 | } |
| duke@435 | 71 | |
| duke@435 | 72 | u8 ClassFileStream::get_u8(TRAPS) { |
| duke@435 | 73 | if (_need_verify) { |
| duke@435 | 74 | guarantee_more(8, CHECK_0); |
| duke@435 | 75 | } else { |
| duke@435 | 76 | assert(8 <= _buffer_end - _current, "buffer overflow"); |
| duke@435 | 77 | } |
| duke@435 | 78 | u1* tmp = _current; |
| duke@435 | 79 | _current += 8; |
| duke@435 | 80 | return Bytes::get_Java_u8(tmp); |
| duke@435 | 81 | } |
| duke@435 | 82 | |
| duke@435 | 83 | void ClassFileStream::skip_u1(int length, TRAPS) { |
| duke@435 | 84 | if (_need_verify) { |
| duke@435 | 85 | guarantee_more(length, CHECK); |
| duke@435 | 86 | } |
| duke@435 | 87 | _current += length; |
| duke@435 | 88 | } |
| duke@435 | 89 | |
| duke@435 | 90 | void ClassFileStream::skip_u2(int length, TRAPS) { |
| duke@435 | 91 | if (_need_verify) { |
| duke@435 | 92 | guarantee_more(length * 2, CHECK); |
| duke@435 | 93 | } |
| duke@435 | 94 | _current += length * 2; |
| duke@435 | 95 | } |
| coleenp@4398 | 96 | |
| coleenp@4398 | 97 | void ClassFileStream::skip_u4(int length, TRAPS) { |
| coleenp@4398 | 98 | if (_need_verify) { |
| coleenp@4398 | 99 | guarantee_more(length * 4, CHECK); |
| coleenp@4398 | 100 | } |
| coleenp@4398 | 101 | _current += length * 4; |
| coleenp@4398 | 102 | } |
