Mercurial > hg > truffle
annotate src/share/vm/compiler/compileLog.hpp @ 8733:9def4075da6d
8008079: G1: Add nextObject routine to CMBitMapRO and replace nextWord
Summary: Update the task local finger to the start of the next object when marking aborts, in order to avoid the redundant scanning of all 0's when the marking task restarts, if otherwise updating to the next word. In addition, reuse the routine nextObject() in routine iterate().
Reviewed-by: johnc, ysr
Contributed-by: tamao <tao.mao@oracle.com>
| author | tamao |
|---|---|
| date | Tue, 05 Mar 2013 15:36:56 -0800 |
| parents | c3e799c37717 |
| children | 813f26e34135 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2002, 2012, 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 #ifndef SHARE_VM_COMPILER_COMPILELOG_HPP |
| 26 #define SHARE_VM_COMPILER_COMPILELOG_HPP | |
| 27 | |
| 28 #include "utilities/xmlstream.hpp" | |
| 29 | |
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30 class ciBaseObject; |
| 0 | 31 class ciObject; |
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32 class ciMetadata; |
| 0 | 33 class ciSymbol; |
| 34 | |
| 35 // CompileLog | |
| 36 // | |
| 37 // An open stream for logging information about activities in a | |
| 38 // compiler thread. There is exactly one per CompilerThread, | |
| 39 // if the +LogCompilation switch is enabled. | |
| 40 class CompileLog : public xmlStream { | |
| 41 private: | |
| 42 const char* _file; // name of file where XML goes | |
| 43 julong _file_end; // last good end of file | |
| 44 intx _thread_id; // which compile thread | |
| 45 | |
| 46 stringStream _context; // optional, killable context marker | |
| 47 char _context_buffer[100]; | |
| 48 | |
| 49 char* _identities; // array of boolean | |
| 50 int _identities_limit; | |
| 51 int _identities_capacity; | |
| 52 | |
| 53 CompileLog* _next; // static chain of all logs | |
| 54 | |
| 55 static CompileLog* _first; // head of static chain | |
| 56 | |
| 57 void va_tag(bool push, const char* format, va_list ap); | |
| 58 | |
| 59 public: | |
| 60 CompileLog(const char* file, FILE* fp, intx thread_id); | |
| 61 ~CompileLog(); | |
| 62 | |
| 63 intx thread_id() { return _thread_id; } | |
| 64 const char* file() { return _file; } | |
| 6843 | 65 |
| 66 // Optional context marker, to help place actions that occur during | |
| 67 // parsing. If there is no log output until the next context string | |
| 68 // or reset, context string will be silently ignored | |
| 0 | 69 stringStream* context() { return &_context; } |
| 6843 | 70 void clear_context() { context()->reset(); } |
| 71 void set_context(const char* format, ...); | |
| 0 | 72 |
| 73 void name(ciSymbol* s); // name='s' | |
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74 void name(Symbol* s) { xmlStream::name(s); } |
| 0 | 75 |
| 76 // Output an object description, return obj->ident(). | |
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77 int identify(ciBaseObject* obj); |
| 0 | 78 void clear_identities(); |
| 79 | |
| 6843 | 80 void inline_fail (const char* reason); |
| 81 void inline_success(const char* reason); | |
| 82 | |
| 0 | 83 // virtuals |
| 84 virtual void see_tag(const char* tag, bool push); | |
| 85 virtual void pop_tag(const char* tag); | |
| 86 | |
| 87 // make a provisional end of log mark | |
| 88 void mark_file_end() { _file_end = out()->count(); } | |
| 89 | |
| 6843 | 90 // Print code cache statistics |
| 91 void code_cache_state(); | |
| 92 | |
| 0 | 93 // copy all logs to the given stream |
| 94 static void finish_log(outputStream* out); | |
| 95 static void finish_log_on_error(outputStream* out, char *buf, int buflen); | |
| 96 }; | |
| 1972 | 97 |
| 98 #endif // SHARE_VM_COMPILER_COMPILELOG_HPP |