1 /* 2 * Copyright (c) 1998, 2015, 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_COMPILETASK_HPP 26 #define SHARE_VM_COMPILER_COMPILETASK_HPP 27 28 #include "code/nmethod.hpp" 29 #include "ci/ciMethod.hpp" 30 #include "compiler/compileLog.hpp" 31 #include "memory/allocation.inline.hpp" 32 #include "utilities/xmlstream.hpp" 33 34 // CompileTask 35 // 36 // An entry in the compile queue. It represents a pending or current 37 // compilation. 38 39 class CompileTask : public CHeapObj<mtCompiler> { 40 friend class VMStructs; 41 42 private: 43 static CompileTask* _task_free_list; 44 #ifdef ASSERT 45 static int _num_allocated_tasks; 46 #endif 47 48 Monitor* _lock; 49 uint _compile_id; 50 Method* _method; 51 jobject _method_holder; 52 int _osr_bci; 53 bool _is_complete; 54 bool _is_success; 55 bool _is_blocking; 56 int _comp_level; 57 int _num_inlined_bytecodes; 58 nmethodLocker* _code_handle; // holder of eventual result 59 CompileTask* _next, *_prev; 60 bool _is_free; 61 // Fields used for logging why the compilation was initiated: 62 jlong _time_queued; // in units of os::elapsed_counter() 63 Method* _hot_method; // which method actually triggered this task 64 jobject _hot_method_holder; 65 int _hot_count; // information about its invocation counter 66 const char* _comment; // more info about the task 67 const char* _failure_reason; 68 69 public: 70 CompileTask() { 71 _lock = new Monitor(Mutex::nonleaf+2, "CompileTaskLock"); 72 } 73 74 void initialize(int compile_id, methodHandle method, int osr_bci, int comp_level, 75 methodHandle hot_method, int hot_count, const char* comment, 76 bool is_blocking); 77 78 static CompileTask* allocate(); 79 static void free(CompileTask* task); 80 81 int compile_id() const { return _compile_id; } 82 Method* method() const { return _method; } 83 Method* hot_method() const { return _hot_method; } 84 int osr_bci() const { return _osr_bci; } 85 bool is_complete() const { return _is_complete; } 86 bool is_blocking() const { return _is_blocking; } 87 bool is_success() const { return _is_success; } 88 89 nmethodLocker* code_handle() const { return _code_handle; } 90 void set_code_handle(nmethodLocker* l) { _code_handle = l; } 91 nmethod* code() const; // _code_handle->code() 92 void set_code(nmethod* nm); // _code_handle->set_code(nm) 93 94 Monitor* lock() const { return _lock; } 95 96 void mark_complete() { _is_complete = true; } 97 void mark_success() { _is_success = true; } 98 99 int comp_level() { return _comp_level;} 100 void set_comp_level(int comp_level) { _comp_level = comp_level;} 101 102 int num_inlined_bytecodes() const { return _num_inlined_bytecodes; } 103 void set_num_inlined_bytecodes(int n) { _num_inlined_bytecodes = n; } 104 105 CompileTask* next() const { return _next; } 106 void set_next(CompileTask* next) { _next = next; } 107 CompileTask* prev() const { return _prev; } 108 void set_prev(CompileTask* prev) { _prev = prev; } 109 bool is_free() const { return _is_free; } 110 void set_is_free(bool val) { _is_free = val; } 111 112 // RedefineClasses support 113 void metadata_do(void f(Metadata*)); 114 void mark_on_stack(); 115 116 private: 117 static void print_impl(outputStream* st, Method* method, int compile_id, int comp_level, 118 bool is_osr_method = false, int osr_bci = -1, bool is_blocking = false, 119 const char* msg = NULL, bool short_form = false, bool cr = true); 120 121 public: 122 void print(outputStream* st = tty, const char* msg = NULL, bool short_form = false, bool cr = true); 123 static void print(outputStream* st, const nmethod* nm, const char* msg = NULL, bool short_form = false, bool cr = true) { 124 print_impl(st, nm->method(), nm->compile_id(), nm->comp_level(), 125 nm->is_osr_method(), nm->is_osr_method() ? nm->osr_entry_bci() : -1, /*is_blocking*/ false, 126 msg, short_form, cr); 127 } 128 129 static void print_inline_indent(int inline_level, outputStream* st = tty); 130 131 void print_tty(); 132 void print_line_on_error(outputStream* st, char* buf, int buflen); 133 134 void log_task(xmlStream* log); 135 void log_task_queued(); 136 void log_task_start(CompileLog* log); 137 void log_task_done(CompileLog* log); 138 139 void set_failure_reason(const char* reason) { 140 _failure_reason = reason; 141 } 142 143 bool check_break_at_flags(); 144 145 static void print_inlining_inner(outputStream* st, ciMethod* method, int inline_level, int bci, const char* msg = NULL); 146 static void print_inlining_tty(ciMethod* method, int inline_level, int bci, const char* msg = NULL) { 147 print_inlining_inner(tty, method, inline_level, bci, msg); 148 } 149 }; 150 151 #endif // SHARE_VM_COMPILER_COMPILETASK_HPP