Mon, 04 Apr 2011 03:02:00 -0700
7032458: Zero and Shark fixes
Reviewed-by: twisti
Contributed-by: Gary Benson <gbenson@redhat.com>
twisti@2047 | 1 | /* |
stefank@2314 | 2 | * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
twisti@2729 | 3 | * Copyright 2008, 2009, 2010, 2011 Red Hat, Inc. |
twisti@2047 | 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
twisti@2047 | 5 | * |
twisti@2047 | 6 | * This code is free software; you can redistribute it and/or modify it |
twisti@2047 | 7 | * under the terms of the GNU General Public License version 2 only, as |
twisti@2047 | 8 | * published by the Free Software Foundation. |
twisti@2047 | 9 | * |
twisti@2047 | 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
twisti@2047 | 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
twisti@2047 | 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
twisti@2047 | 13 | * version 2 for more details (a copy is included in the LICENSE file that |
twisti@2047 | 14 | * accompanied this code). |
twisti@2047 | 15 | * |
twisti@2047 | 16 | * You should have received a copy of the GNU General Public License version |
twisti@2047 | 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
twisti@2047 | 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
twisti@2047 | 19 | * |
twisti@2047 | 20 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
twisti@2047 | 21 | * or visit www.oracle.com if you need additional information or have any |
twisti@2047 | 22 | * questions. |
twisti@2047 | 23 | * |
twisti@2047 | 24 | */ |
twisti@2047 | 25 | |
stefank@2314 | 26 | #ifndef SHARE_VM_SHARK_SHARKCOMPILER_HPP |
stefank@2314 | 27 | #define SHARE_VM_SHARK_SHARKCOMPILER_HPP |
stefank@2314 | 28 | |
stefank@2314 | 29 | #include "ci/ciEnv.hpp" |
stefank@2314 | 30 | #include "ci/ciMethod.hpp" |
stefank@2314 | 31 | #include "compiler/abstractCompiler.hpp" |
stefank@2314 | 32 | #include "compiler/compileBroker.hpp" |
stefank@2314 | 33 | #include "shark/llvmHeaders.hpp" |
stefank@2314 | 34 | #include "shark/sharkMemoryManager.hpp" |
stefank@2314 | 35 | |
twisti@2047 | 36 | class SharkContext; |
twisti@2047 | 37 | |
twisti@2047 | 38 | class SharkCompiler : public AbstractCompiler { |
twisti@2047 | 39 | public: |
twisti@2047 | 40 | // Creation |
twisti@2047 | 41 | SharkCompiler(); |
twisti@2047 | 42 | |
twisti@2047 | 43 | // Name of this compiler |
twisti@2047 | 44 | const char *name() { return "shark"; } |
twisti@2047 | 45 | |
twisti@2047 | 46 | // Missing feature tests |
twisti@2047 | 47 | bool supports_native() { return true; } |
twisti@2047 | 48 | bool supports_osr() { return true; } |
twisti@2047 | 49 | |
twisti@2047 | 50 | // Customization |
twisti@2047 | 51 | bool needs_adapters() { return false; } |
twisti@2047 | 52 | bool needs_stubs() { return false; } |
twisti@2047 | 53 | |
twisti@2047 | 54 | // Initialization |
twisti@2047 | 55 | void initialize(); |
twisti@2047 | 56 | |
twisti@2047 | 57 | // Compile a normal (bytecode) method and install it in the VM |
twisti@2047 | 58 | void compile_method(ciEnv* env, ciMethod* target, int entry_bci); |
twisti@2047 | 59 | |
twisti@2047 | 60 | // Generate a wrapper for a native (JNI) method |
twisti@2047 | 61 | nmethod* generate_native_wrapper(MacroAssembler* masm, |
twisti@2047 | 62 | methodHandle target, |
twisti@2729 | 63 | int compile_id, |
twisti@2047 | 64 | BasicType* arg_types, |
twisti@2047 | 65 | BasicType return_type); |
twisti@2047 | 66 | |
twisti@2047 | 67 | // Free compiled methods (and native wrappers) |
twisti@2047 | 68 | void free_compiled_method(address code); |
twisti@2047 | 69 | |
twisti@2047 | 70 | // Each thread generating IR needs its own context. The normal |
twisti@2047 | 71 | // context is used for bytecode methods, and is protected from |
twisti@2047 | 72 | // multiple simultaneous accesses by being restricted to the |
twisti@2047 | 73 | // compiler thread. The native context is used for JNI methods, |
twisti@2047 | 74 | // and is protected from multiple simultaneous accesses by the |
twisti@2047 | 75 | // adapter handler library lock. |
twisti@2047 | 76 | private: |
twisti@2047 | 77 | SharkContext* _normal_context; |
twisti@2047 | 78 | SharkContext* _native_context; |
twisti@2047 | 79 | |
twisti@2047 | 80 | public: |
twisti@2047 | 81 | SharkContext* context() const { |
twisti@2047 | 82 | if (JavaThread::current()->is_Compiler_thread()) { |
twisti@2047 | 83 | return _normal_context; |
twisti@2047 | 84 | } |
twisti@2047 | 85 | else { |
twisti@2047 | 86 | assert(AdapterHandlerLibrary_lock->owned_by_self(), "should be"); |
twisti@2047 | 87 | return _native_context; |
twisti@2047 | 88 | } |
twisti@2047 | 89 | } |
twisti@2047 | 90 | |
twisti@2047 | 91 | // The LLVM execution engine is the JIT we use to generate native |
twisti@2047 | 92 | // code. It is thread safe, but we need to protect it with a lock |
twisti@2047 | 93 | // of our own because otherwise LLVM's lock and HotSpot's locks |
twisti@2047 | 94 | // interleave and deadlock. The SharkMemoryManager is not thread |
twisti@2047 | 95 | // safe, and is protected by the same lock as the execution engine. |
twisti@2047 | 96 | private: |
twisti@2047 | 97 | Monitor* _execution_engine_lock; |
twisti@2047 | 98 | SharkMemoryManager* _memory_manager; |
twisti@2047 | 99 | llvm::ExecutionEngine* _execution_engine; |
twisti@2047 | 100 | |
twisti@2047 | 101 | private: |
twisti@2047 | 102 | Monitor* execution_engine_lock() const { |
twisti@2047 | 103 | return _execution_engine_lock; |
twisti@2047 | 104 | } |
twisti@2047 | 105 | SharkMemoryManager* memory_manager() const { |
twisti@2047 | 106 | assert(execution_engine_lock()->owned_by_self(), "should be"); |
twisti@2047 | 107 | return _memory_manager; |
twisti@2047 | 108 | } |
twisti@2047 | 109 | llvm::ExecutionEngine* execution_engine() const { |
twisti@2047 | 110 | assert(execution_engine_lock()->owned_by_self(), "should be"); |
twisti@2047 | 111 | return _execution_engine; |
twisti@2047 | 112 | } |
twisti@2047 | 113 | |
twisti@2047 | 114 | // Global access |
twisti@2047 | 115 | public: |
twisti@2047 | 116 | static SharkCompiler* compiler() { |
twisti@2729 | 117 | AbstractCompiler *compiler = |
twisti@2729 | 118 | CompileBroker::compiler(CompLevel_full_optimization); |
twisti@2047 | 119 | assert(compiler->is_shark() && compiler->is_initialized(), "should be"); |
twisti@2047 | 120 | return (SharkCompiler *) compiler; |
twisti@2047 | 121 | } |
twisti@2047 | 122 | |
twisti@2047 | 123 | // Helpers |
twisti@2047 | 124 | private: |
twisti@2047 | 125 | static const char* methodname(const char* klass, const char* method); |
twisti@2047 | 126 | void generate_native_code(SharkEntry* entry, |
twisti@2047 | 127 | llvm::Function* function, |
twisti@2047 | 128 | const char* name); |
twisti@2047 | 129 | void free_queued_methods(); |
twisti@2047 | 130 | }; |
stefank@2314 | 131 | |
stefank@2314 | 132 | #endif // SHARE_VM_SHARK_SHARKCOMPILER_HPP |