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/compilerDirectives.hpp" 31 #include "compiler/compileLog.hpp" 32 #include "memory/allocation.inline.hpp" 33 #include "utilities/xmlstream.hpp" 34 35 // CompileTask 36 // 37 // An entry in the compile queue. It represents a pending or current 38 // compilation. 39 40 class CompileTask : public CHeapObj<mtCompiler> { 41 friend class VMStructs; 42 43 private: 44 static CompileTask* _task_free_list; 45 #ifdef ASSERT 46 static int _num_allocated_tasks; 47 #endif 48 49 Monitor* _lock; 50 uint _compile_id; 51 Method* _method; 52 jobject _method_holder; 53 int _osr_bci; 54 bool _is_complete; 55 bool _is_success; 56 bool _is_blocking; 57 int _comp_level; 58 int _num_inlined_bytecodes; 59 nmethodLocker* _code_handle; // holder of eventual result 60 CompileTask* _next, *_prev; 61 bool _is_free; 62 // Fields used for logging why the compilation was initiated: 63 jlong _time_queued; // in units of os::elapsed_counter() 64 Method* _hot_method; // which method actually triggered this task 65 jobject _hot_method_holder; 66 int _hot_count; // information about its invocation counter 67 const char* _comment; // more info about the task 68 const char* _failure_reason; 69 CompilerDirectives* _directives; 70 71 public: 72 CompileTask() { 73 _lock = new Monitor(Mutex::nonleaf+2, "CompileTaskLock"); 74 } 75 76 void initialize(int compile_id, methodHandle method, int osr_bci, int comp_level, 77 methodHandle hot_method, int hot_count, const char* comment, 78 bool is_blocking); 79 80 static CompileTask* allocate(); 81 static void free(CompileTask* task); 82 83 int compile_id() const { return _compile_id; } 84 Method* method() const { return _method; } 85 Method* hot_method() const { return _hot_method; } 86 int osr_bci() const { return _osr_bci; } 87 bool is_complete() const { return _is_complete; } 88 bool is_blocking() const { return _is_blocking; } 89 bool is_success() const { return _is_success; } 90 91 nmethodLocker* code_handle() const { return _code_handle; } 92 void set_code_handle(nmethodLocker* l) { _code_handle = l; } 93 nmethod* code() const; // _code_handle->code() 94 void set_code(nmethod* nm); // _code_handle->set_code(nm) 95 96 Monitor* lock() const { return _lock; } 97 98 void mark_complete() { _is_complete = true; } 99 void mark_success() { _is_success = true; } 100 101 int comp_level() { return _comp_level;} 102 void set_comp_level(int comp_level) { _comp_level = comp_level;} 103 104 int num_inlined_bytecodes() const { return _num_inlined_bytecodes; } 105 void set_num_inlined_bytecodes(int n) { _num_inlined_bytecodes = n; } 106 107 CompileTask* next() const { return _next; } 108 void set_next(CompileTask* next) { _next = next; } 109 CompileTask* prev() const { return _prev; } 110 void set_prev(CompileTask* prev) { _prev = prev; } 111 bool is_free() const { return _is_free; } 112 void set_is_free(bool val) { _is_free = val; } 113 114 // RedefineClasses support 115 void metadata_do(void f(Metadata*)); 116 void mark_on_stack(); 117 118 private: 119 static void print_impl(outputStream* st, Method* method, int compile_id, int comp_level, 120 bool is_osr_method = false, int osr_bci = -1, bool is_blocking = false, 121 const char* msg = NULL, bool short_form = false, bool cr = true); 122 123 public: 124 void print(outputStream* st = tty, const char* msg = NULL, bool short_form = false, bool cr = true); 125 static void print(outputStream* st, const nmethod* nm, const char* msg = NULL, bool short_form = false, bool cr = true) { 126 print_impl(st, nm->method(), nm->compile_id(), nm->comp_level(), 127 nm->is_osr_method(), nm->is_osr_method() ? nm->osr_entry_bci() : -1, /*is_blocking*/ false, 128 msg, short_form, cr); 129 } 130 131 static void print_inline_indent(int inline_level, outputStream* st = tty); 132 133 void print_tty(); 134 void print_line_on_error(outputStream* st, char* buf, int buflen); 135 136 void log_task(xmlStream* log); 137 void log_task_queued(); 138 void log_task_start(CompileLog* log); 139 void log_task_done(CompileLog* log); 140 141 void set_failure_reason(const char* reason) { 142 _failure_reason = reason; 143 } 144 145 bool check_break_at_flags(); 146 147 static void print_inlining_inner(outputStream* st, ciMethod* method, int inline_level, int bci, const char* msg = NULL); 148 static void print_inlining_tty(ciMethod* method, int inline_level, int bci, const char* msg = NULL) { 149 print_inlining_inner(tty, method, inline_level, bci, msg); 150 } 151 }; 152 153 #endif // SHARE_VM_COMPILER_COMPILETASK_HPP