1 /* 2 * Copyright (c) 2011, 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 #include "precompiled.hpp" 25 #include "memory/oopFactory.hpp" 26 #include "oops/oop.inline.hpp" 27 #include "runtime/javaCalls.hpp" 28 #include "runtime/handles.hpp" 29 #include "jvmci/jvmciJavaClasses.hpp" 30 #include "jvmci/jvmciCompiler.hpp" 31 #include "jvmci/jvmciEnv.hpp" 32 #include "jvmci/jvmciRuntime.hpp" 33 #include "runtime/compilationPolicy.hpp" 34 #include "runtime/globals_extension.hpp" 35 36 JVMCICompiler* JVMCICompiler::_instance = NULL; 37 elapsedTimer JVMCICompiler::_codeInstallTimer; 38 39 JVMCICompiler::JVMCICompiler() : AbstractCompiler(jvmci) { 40 _bootstrapping = false; 41 _methodsCompiled = 0; 42 assert(_instance == NULL, "only one instance allowed"); 43 _instance = this; 44 } 45 46 // Initialization 47 void JVMCICompiler::initialize() { 48 if (!UseCompiler || !EnableJVMCI || !UseJVMCICompiler || !should_perform_init()) { 49 return; 50 } 51 52 set_state(initialized); 53 54 // JVMCI is considered as application code so we need to 55 // stop the VM deferring compilation now. 56 CompilationPolicy::completed_vm_startup(); 57 } 58 59 void JVMCICompiler::bootstrap() { 60 #ifndef PRODUCT 61 // We turn off CompileTheWorld so that compilation requests are not 62 // ignored during bootstrap or that JVMCI can be compiled by C1/C2. 63 FlagSetting ctwOff(CompileTheWorld, false); 64 #endif 65 66 JavaThread* THREAD = JavaThread::current(); 67 _bootstrapping = true; 68 ResourceMark rm; 69 HandleMark hm; 70 if (PrintBootstrap) { 71 tty->print("Bootstrapping JVMCI"); 72 } 73 jlong start = os::javaTimeMillis(); 74 75 Array<Method*>* objectMethods = InstanceKlass::cast(SystemDictionary::Object_klass())->methods(); 76 // Initialize compile queue with a selected set of methods. 77 int len = objectMethods->length(); 78 for (int i = 0; i < len; i++) { 79 methodHandle mh = objectMethods->at(i); 80 if (!mh->is_native() && !mh->is_static() && !mh->is_initializer()) { 81 ResourceMark rm; 82 int hot_count = 10; // TODO: what's the appropriate value? 83 CompileBroker::compile_method(mh, InvocationEntryBci, CompLevel_full_optimization, mh, hot_count, "bootstrap", THREAD); 84 } 85 } 86 87 int qsize; 88 bool first_round = true; 89 int z = 0; 90 do { 91 // Loop until there is something in the queue. 92 do { 93 os::sleep(THREAD, 100, true); 94 qsize = CompileBroker::queue_size(CompLevel_full_optimization); 95 } while (first_round && qsize == 0); 96 first_round = false; 97 if (PrintBootstrap) { 98 while (z < (_methodsCompiled / 100)) { 99 ++z; 100 tty->print_raw("."); 101 } 102 } 103 } while (qsize != 0); 104 105 if (PrintBootstrap) { 106 tty->print_cr(" in " JLONG_FORMAT " ms (compiled %d methods)", os::javaTimeMillis() - start, _methodsCompiled); 107 } 108 _bootstrapping = false; 109 } 110 111 void JVMCICompiler::compile_method(methodHandle method, int entry_bci, JVMCIEnv* env) { 112 JVMCI_EXCEPTION_CONTEXT 113 114 bool is_osr = entry_bci != InvocationEntryBci; 115 if (_bootstrapping && is_osr) { 116 // no OSR compilations during bootstrap - the compiler is just too slow at this point, 117 // and we know that there are no endless loops 118 return; 119 } 120 121 JVMCIRuntime::initialize_well_known_classes(CHECK_ABORT); 122 123 HandleMark hm; 124 ResourceMark rm; 125 Handle receiver = JVMCIRuntime::get_HotSpotJVMCIRuntime(CHECK_ABORT); 126 127 JavaValue method_result(T_OBJECT); 128 { 129 JavaCallArguments args; 130 args.push_long((jlong) (address) method()); 131 JavaCalls::call_static(&method_result, SystemDictionary::HotSpotResolvedJavaMethodImpl_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::method_fromMetaspace_signature(), &args, CHECK_ABORT); 132 } 133 134 JavaValue result(T_VOID); 135 JavaCallArguments args; 136 args.push_oop(receiver); 137 args.push_oop((oop)method_result.get_jobject()); 138 args.push_int(entry_bci); 139 args.push_long((jlong) (address) env); 140 args.push_int(env->task()->compile_id()); 141 JavaCalls::call_special(&result, receiver->klass(), vmSymbols::compileMethod_name(), vmSymbols::compileMethod_signature(), &args, CHECK_ABORT); 142 143 _methodsCompiled++; 144 } 145 146 147 // Compilation entry point for methods 148 void JVMCICompiler::compile_method(ciEnv* env, ciMethod* target, int entry_bci) { 149 ShouldNotReachHere(); 150 } 151 152 // Print compilation timers and statistics 153 void JVMCICompiler::print_timers() { 154 print_compilation_timers(); 155 } 156 157 // Print compilation timers and statistics 158 void JVMCICompiler::print_compilation_timers() { 159 TRACE_jvmci_1("JVMCICompiler::print_timers"); 160 tty->print_cr(" JVMCI code install time: %6.3f s", _codeInstallTimer.seconds()); 161 }