| /* |
| * Copyright (c) 2011, 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| #include "precompiled.hpp" |
| #include "memory/oopFactory.hpp" |
| #include "memory/resourceArea.hpp" |
| #include "oops/oop.inline.hpp" |
| #include "prims/jvm.h" |
| #include "runtime/javaCalls.hpp" |
| #include "runtime/handles.hpp" |
| #include "jvmci/jvmciJavaClasses.hpp" |
| #include "jvmci/jvmciCompiler.hpp" |
| #include "jvmci/jvmciEnv.hpp" |
| #include "jvmci/jvmciRuntime.hpp" |
| #include "runtime/compilationPolicy.hpp" |
| #include "runtime/globals_extension.hpp" |
| |
| JVMCICompiler* JVMCICompiler::_instance = NULL; |
| elapsedTimer JVMCICompiler::_codeInstallTimer; |
| |
| JVMCICompiler::JVMCICompiler() : AbstractCompiler(compiler_jvmci) { |
| _bootstrapping = false; |
| _bootstrap_compilation_request_handled = false; |
| _methods_compiled = 0; |
| assert(_instance == NULL, "only one instance allowed"); |
| _instance = this; |
| } |
| |
| // Initialization |
| void JVMCICompiler::initialize() { |
| if (!UseCompiler || !EnableJVMCI || !UseJVMCICompiler || !should_perform_init()) { |
| return; |
| } |
| |
| set_state(initialized); |
| |
| // JVMCI is considered as application code so we need to |
| // stop the VM deferring compilation now. |
| CompilationPolicy::completed_vm_startup(); |
| } |
| |
| void JVMCICompiler::bootstrap(TRAPS) { |
| if (Arguments::mode() == Arguments::_int) { |
| // Nothing to do in -Xint mode |
| return; |
| } |
| #ifndef PRODUCT |
| // We turn off CompileTheWorld so that compilation requests are not |
| // ignored during bootstrap or that JVMCI can be compiled by C1/C2. |
| FlagSetting ctwOff(CompileTheWorld, false); |
| #endif |
| |
| _bootstrapping = true; |
| ResourceMark rm; |
| HandleMark hm; |
| if (PrintBootstrap) { |
| tty->print("Bootstrapping JVMCI"); |
| } |
| jlong start = os::javaTimeMillis(); |
| |
| Array<Method*>* objectMethods = SystemDictionary::Object_klass()->methods(); |
| // Initialize compile queue with a selected set of methods. |
| int len = objectMethods->length(); |
| for (int i = 0; i < len; i++) { |
| methodHandle mh = objectMethods->at(i); |
| if (!mh->is_native() && !mh->is_static() && !mh->is_initializer()) { |
| ResourceMark rm; |
| int hot_count = 10; // TODO: what's the appropriate value? |
| CompileBroker::compile_method(mh, InvocationEntryBci, CompLevel_full_optimization, mh, hot_count, CompileTask::Reason_Bootstrap, THREAD); |
| } |
| } |
| |
| int qsize; |
| bool first_round = true; |
| int z = 0; |
| do { |
| // Loop until there is something in the queue. |
| do { |
| os::sleep(THREAD, 100, true); |
| qsize = CompileBroker::queue_size(CompLevel_full_optimization); |
| } while (!_bootstrap_compilation_request_handled && first_round && qsize == 0); |
| first_round = false; |
| if (PrintBootstrap) { |
| while (z < (_methods_compiled / 100)) { |
| ++z; |
| tty->print_raw("."); |
| } |
| } |
| } while (qsize != 0); |
| |
| if (PrintBootstrap) { |
| tty->print_cr(" in " JLONG_FORMAT " ms (compiled %d methods)", os::javaTimeMillis() - start, _methods_compiled); |
| } |
| _bootstrapping = false; |
| JVMCIRuntime::bootstrap_finished(CHECK); |
| } |
| |
| #define CHECK_EXIT THREAD); \ |
| if (HAS_PENDING_EXCEPTION) { \ |
| char buf[256]; \ |
| jio_snprintf(buf, 256, "Uncaught exception at %s:%d", __FILE__, __LINE__); \ |
| JVMCICompiler::exit_on_pending_exception(PENDING_EXCEPTION, buf); \ |
| return; \ |
| } \ |
| (void)(0 |
| |
| void JVMCICompiler::compile_method(const methodHandle& method, int entry_bci, JVMCIEnv* env) { |
| JVMCI_EXCEPTION_CONTEXT |
| |
| bool is_osr = entry_bci != InvocationEntryBci; |
| if (_bootstrapping && is_osr) { |
| // no OSR compilations during bootstrap - the compiler is just too slow at this point, |
| // and we know that there are no endless loops |
| return; |
| } |
| |
| JVMCIRuntime::initialize_well_known_classes(CHECK_EXIT); |
| |
| HandleMark hm; |
| Handle receiver = JVMCIRuntime::get_HotSpotJVMCIRuntime(CHECK_EXIT); |
| |
| JavaValue method_result(T_OBJECT); |
| JavaCallArguments args; |
| args.push_long((jlong) (address) method()); |
| JavaCalls::call_static(&method_result, SystemDictionary::HotSpotResolvedJavaMethodImpl_klass(), |
| vmSymbols::fromMetaspace_name(), vmSymbols::method_fromMetaspace_signature(), &args, THREAD); |
| |
| JavaValue result(T_OBJECT); |
| if (!HAS_PENDING_EXCEPTION) { |
| JavaCallArguments args; |
| args.push_oop(receiver); |
| args.push_oop(Handle(THREAD, (oop)method_result.get_jobject())); |
| args.push_int(entry_bci); |
| args.push_long((jlong) (address) env); |
| args.push_int(env->task()->compile_id()); |
| JavaCalls::call_special(&result, receiver->klass(), |
| vmSymbols::compileMethod_name(), vmSymbols::compileMethod_signature(), &args, THREAD); |
| } |
| |
| // An uncaught exception was thrown during compilation. Generally these |
| // should be handled by the Java code in some useful way but if they leak |
| // through to here report them instead of dying or silently ignoring them. |
| if (HAS_PENDING_EXCEPTION) { |
| Handle exception(THREAD, PENDING_EXCEPTION); |
| CLEAR_PENDING_EXCEPTION; |
| |
| java_lang_Throwable::java_printStackTrace(exception, THREAD); |
| if (HAS_PENDING_EXCEPTION) { |
| CLEAR_PENDING_EXCEPTION; |
| } |
| |
| env->set_failure("exception throw", false); |
| } else { |
| oop result_object = (oop) result.get_jobject(); |
| if (result_object != NULL) { |
| oop failure_message = HotSpotCompilationRequestResult::failureMessage(result_object); |
| if (failure_message != NULL) { |
| const char* failure_reason = java_lang_String::as_utf8_string(failure_message); |
| env->set_failure(failure_reason, HotSpotCompilationRequestResult::retry(result_object) != 0); |
| } else { |
| if (env->task()->code() == NULL) { |
| env->set_failure("no nmethod produced", true); |
| } else { |
| env->task()->set_num_inlined_bytecodes(HotSpotCompilationRequestResult::inlinedBytecodes(result_object)); |
| Atomic::inc(&_methods_compiled); |
| } |
| } |
| } else { |
| assert(false, "JVMCICompiler.compileMethod should always return non-null"); |
| } |
| } |
| if (_bootstrapping) { |
| _bootstrap_compilation_request_handled = true; |
| } |
| } |
| |
| CompLevel JVMCIRuntime::adjust_comp_level(const methodHandle& method, bool is_osr, CompLevel level, JavaThread* thread) { |
| if (!thread->adjusting_comp_level()) { |
| thread->set_adjusting_comp_level(true); |
| level = adjust_comp_level_inner(method, is_osr, level, thread); |
| thread->set_adjusting_comp_level(false); |
| } |
| return level; |
| } |
| |
| void JVMCICompiler::exit_on_pending_exception(oop exception, const char* message) { |
| JavaThread* THREAD = JavaThread::current(); |
| CLEAR_PENDING_EXCEPTION; |
| |
| static volatile int report_error = 0; |
| if (!report_error && Atomic::cmpxchg(1, &report_error, 0) == 0) { |
| // Only report an error once |
| tty->print_raw_cr(message); |
| Handle ex(THREAD, exception); |
| java_lang_Throwable::java_printStackTrace(ex, THREAD); |
| } else { |
| // Allow error reporting thread to print the stack trace. |
| os::sleep(THREAD, 200, false); |
| } |
| |
| before_exit(THREAD); |
| vm_exit(-1); |
| } |
| |
| // Compilation entry point for methods |
| void JVMCICompiler::compile_method(ciEnv* env, ciMethod* target, int entry_bci, DirectiveSet* directive) { |
| ShouldNotReachHere(); |
| } |
| |
| bool JVMCICompiler::is_trivial(Method* method) { |
| if (_bootstrapping) { |
| return false; |
| } |
| return JVMCIRuntime::treat_as_trivial(method); |
| } |
| |
| // Print compilation timers and statistics |
| void JVMCICompiler::print_timers() { |
| print_compilation_timers(); |
| } |
| |
| // Print compilation timers and statistics |
| void JVMCICompiler::print_compilation_timers() { |
| TRACE_jvmci_1("JVMCICompiler::print_timers"); |
| tty->print_cr(" JVMCI code install time: %6.3f s", _codeInstallTimer.seconds()); |
| } |