Mercurial > hg > graal-compiler
annotate src/share/vm/shark/sharkCompiler.hpp @ 1845:a222fcfba398
6990549: Zero and Shark fixes after 6978355 and 6953144
Reviewed-by: twisti
Contributed-by: Gary Benson <gbenson@redhat.com>
| author | twisti |
|---|---|
| date | Fri, 08 Oct 2010 02:42:17 -0700 |
| parents | d2ede61b7a12 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 1692 | 1 /* |
| 2 * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved. | |
| 3 * Copyright 2008, 2009 Red Hat, Inc. | |
| 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 5 * | |
| 6 * This code is free software; you can redistribute it and/or modify it | |
| 7 * under the terms of the GNU General Public License version 2 only, as | |
| 8 * published by the Free Software Foundation. | |
| 9 * | |
| 10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 13 * version 2 for more details (a copy is included in the LICENSE file that | |
| 14 * accompanied this code). | |
| 15 * | |
| 16 * You should have received a copy of the GNU General Public License version | |
| 17 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 19 * | |
| 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 21 * or visit www.oracle.com if you need additional information or have any | |
| 22 * questions. | |
| 23 * | |
| 24 */ | |
| 25 | |
| 26 class SharkContext; | |
| 27 | |
| 28 class SharkCompiler : public AbstractCompiler { | |
| 29 public: | |
| 30 // Creation | |
| 31 SharkCompiler(); | |
| 32 | |
| 33 // Name of this compiler | |
| 34 const char *name() { return "shark"; } | |
| 35 | |
| 36 // Missing feature tests | |
| 37 bool supports_native() { return true; } | |
| 38 bool supports_osr() { return true; } | |
| 39 | |
| 40 // Customization | |
| 41 bool needs_adapters() { return false; } | |
| 42 bool needs_stubs() { return false; } | |
| 43 | |
| 44 // Initialization | |
| 45 void initialize(); | |
| 46 | |
| 47 // Compile a normal (bytecode) method and install it in the VM | |
| 48 void compile_method(ciEnv* env, ciMethod* target, int entry_bci); | |
| 49 | |
| 50 // Generate a wrapper for a native (JNI) method | |
| 51 nmethod* generate_native_wrapper(MacroAssembler* masm, | |
| 52 methodHandle target, | |
| 53 BasicType* arg_types, | |
| 54 BasicType return_type); | |
| 55 | |
| 56 // Free compiled methods (and native wrappers) | |
| 57 void free_compiled_method(address code); | |
| 58 | |
| 59 // Each thread generating IR needs its own context. The normal | |
| 60 // context is used for bytecode methods, and is protected from | |
| 61 // multiple simultaneous accesses by being restricted to the | |
| 62 // compiler thread. The native context is used for JNI methods, | |
| 63 // and is protected from multiple simultaneous accesses by the | |
| 64 // adapter handler library lock. | |
| 65 private: | |
| 66 SharkContext* _normal_context; | |
| 67 SharkContext* _native_context; | |
| 68 | |
| 69 public: | |
| 70 SharkContext* context() const { | |
| 71 if (JavaThread::current()->is_Compiler_thread()) { | |
| 72 return _normal_context; | |
| 73 } | |
| 74 else { | |
| 75 assert(AdapterHandlerLibrary_lock->owned_by_self(), "should be"); | |
| 76 return _native_context; | |
| 77 } | |
| 78 } | |
| 79 | |
| 80 // The LLVM execution engine is the JIT we use to generate native | |
| 81 // code. It is thread safe, but we need to protect it with a lock | |
| 82 // of our own because otherwise LLVM's lock and HotSpot's locks | |
| 83 // interleave and deadlock. The SharkMemoryManager is not thread | |
| 84 // safe, and is protected by the same lock as the execution engine. | |
| 85 private: | |
| 86 Monitor* _execution_engine_lock; | |
| 87 SharkMemoryManager* _memory_manager; | |
| 88 llvm::ExecutionEngine* _execution_engine; | |
| 89 | |
| 90 private: | |
| 91 Monitor* execution_engine_lock() const { | |
| 92 return _execution_engine_lock; | |
| 93 } | |
| 94 SharkMemoryManager* memory_manager() const { | |
| 95 assert(execution_engine_lock()->owned_by_self(), "should be"); | |
| 96 return _memory_manager; | |
| 97 } | |
| 98 llvm::ExecutionEngine* execution_engine() const { | |
| 99 assert(execution_engine_lock()->owned_by_self(), "should be"); | |
| 100 return _execution_engine; | |
| 101 } | |
| 102 | |
| 103 // Global access | |
| 104 public: | |
| 105 static SharkCompiler* compiler() { | |
|
1845
a222fcfba398
6990549: Zero and Shark fixes after 6978355 and 6953144
twisti
parents:
1692
diff
changeset
|
106 AbstractCompiler *compiler = CompileBroker::compiler(CompLevel_simple); |
| 1692 | 107 assert(compiler->is_shark() && compiler->is_initialized(), "should be"); |
| 108 return (SharkCompiler *) compiler; | |
| 109 } | |
| 110 | |
| 111 // Helpers | |
| 112 private: | |
| 113 static const char* methodname(const char* klass, const char* method); | |
| 114 void generate_native_code(SharkEntry* entry, | |
| 115 llvm::Function* function, | |
| 116 const char* name); | |
| 117 void free_queued_methods(); | |
| 118 }; |