1 /* 2 * Copyright (c) 2002, 2014, 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 #ifndef SHARE_VM_COMPILER_COMPILELOG_HPP 26 #define SHARE_VM_COMPILER_COMPILELOG_HPP 27 28 #include "utilities/xmlstream.hpp" 29 30 class ciBaseObject; 31 class ciKlass; 32 class ciObject; 33 class ciMetadata; 34 class ciSymbol; 35 36 // CompileLog 37 // 38 // An open stream for logging information about activities in a 39 // compiler thread. There is exactly one per CompilerThread, 40 // if the +LogCompilation switch is enabled. 41 class CompileLog : public xmlStream { 42 private: 43 const char* _file; // name of file where XML goes 44 julong _file_end; // last good end of file 45 intx _thread_id; // which compile thread 46 47 stringStream _context; // optional, killable context marker 48 char _context_buffer[100]; 49 50 char* _identities; // array of boolean 51 int _identities_limit; 52 int _identities_capacity; 53 54 CompileLog* _next; // static chain of all logs 55 56 static CompileLog* _first; // head of static chain 57 58 void va_tag(bool push, const char* format, va_list ap) ATTRIBUTE_PRINTF(3, 0); 59 60 public: 61 CompileLog(const char* file_name, FILE* fp, intx thread_id); 62 ~CompileLog(); 63 thread_id()64 intx thread_id() { return _thread_id; } file()65 const char* file() { return _file; } 66 67 // Optional context marker, to help place actions that occur during 68 // parsing. If there is no log output until the next context string 69 // or reset, context string will be silently ignored context()70 stringStream* context() { return &_context; } clear_context()71 void clear_context() { context()->reset(); } 72 void set_context(const char* format, ...) ATTRIBUTE_PRINTF(2, 3); 73 74 void name(ciSymbol* s); // name='s' name(Symbol * s)75 void name(Symbol* s) { xmlStream::name(s); } 76 void name(ciKlass* k); 77 78 // Output an object description, return obj->ident(). 79 int identify(ciBaseObject* obj); 80 void clear_identities(); 81 82 void inline_fail (const char* reason); 83 void inline_success(const char* reason); 84 85 // virtuals 86 virtual void see_tag(const char* tag, bool push); 87 virtual void pop_tag(const char* tag); 88 89 // make a provisional end of log mark mark_file_end()90 void mark_file_end() { _file_end = out()->count(); } 91 92 // Print code cache statistics 93 void code_cache_state(); 94 95 // copy all logs to the given stream 96 static void finish_log(outputStream* out); 97 static void finish_log_on_error(outputStream* out, char *buf, int buflen); 98 }; 99 100 #endif // SHARE_VM_COMPILER_COMPILELOG_HPP 101