| /* |
| * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
| * Copyright 2009 Red Hat, Inc. |
| * 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. |
| * |
| */ |
| |
| #ifndef SHARE_VM_SHARK_SHARKNATIVEWRAPPER_HPP |
| #define SHARE_VM_SHARK_SHARKNATIVEWRAPPER_HPP |
| |
| #include "runtime/handles.hpp" |
| #include "shark/llvmHeaders.hpp" |
| #include "shark/sharkBuilder.hpp" |
| #include "shark/sharkContext.hpp" |
| #include "shark/sharkInvariants.hpp" |
| #include "shark/sharkStack.hpp" |
| |
| class SharkNativeWrapper : public SharkCompileInvariants { |
| friend class SharkStackWithNativeFrame; |
| |
| public: |
| static SharkNativeWrapper* build(SharkBuilder* builder, |
| methodHandle target, |
| const char* name, |
| BasicType* arg_types, |
| BasicType return_type) { |
| return new SharkNativeWrapper(builder, |
| target, |
| name, |
| arg_types, |
| return_type); |
| } |
| |
| private: |
| SharkNativeWrapper(SharkBuilder* builder, |
| methodHandle target, |
| const char* name, |
| BasicType* arg_types, |
| BasicType return_type) |
| : SharkCompileInvariants(NULL, builder), |
| _target(target), |
| _arg_types(arg_types), |
| _return_type(return_type), |
| _lock_slot_offset(0) { initialize(name); } |
| |
| private: |
| void initialize(const char* name); |
| |
| private: |
| methodHandle _target; |
| BasicType* _arg_types; |
| BasicType _return_type; |
| llvm::Function* _function; |
| SharkStack* _stack; |
| llvm::Value* _oop_tmp_slot; |
| OopMapSet* _oop_maps; |
| int _receiver_slot_offset; |
| int _lock_slot_offset; |
| |
| // The method being compiled. |
| protected: |
| methodHandle target() const { |
| return _target; |
| } |
| |
| // Properties of the method. |
| protected: |
| int arg_size() const { |
| return target()->size_of_parameters(); |
| } |
| BasicType arg_type(int i) const { |
| return _arg_types[i]; |
| } |
| BasicType return_type() const { |
| return _return_type; |
| } |
| bool is_static() const { |
| return target()->is_static(); |
| } |
| bool is_synchronized() const { |
| return target()->is_synchronized(); |
| } |
| bool is_returning_oop() const { |
| return target()->is_returning_oop(); |
| } |
| |
| // The LLVM function we are building. |
| public: |
| llvm::Function* function() const { |
| return _function; |
| } |
| |
| // The Zero stack and our frame on it. |
| protected: |
| SharkStack* stack() const { |
| return _stack; |
| } |
| |
| // Temporary oop storage. |
| protected: |
| llvm::Value* oop_tmp_slot() const { |
| assert(is_static() || is_returning_oop(), "should be"); |
| return _oop_tmp_slot; |
| } |
| |
| // Information required by nmethod::new_native_nmethod(). |
| public: |
| int frame_size() const { |
| return stack()->oopmap_frame_size(); |
| } |
| ByteSize receiver_offset() const { |
| return in_ByteSize(_receiver_slot_offset * wordSize); |
| } |
| ByteSize lock_offset() const { |
| return in_ByteSize(_lock_slot_offset * wordSize); |
| } |
| OopMapSet* oop_maps() const { |
| return _oop_maps; |
| } |
| |
| // Helpers. |
| private: |
| llvm::BasicBlock* CreateBlock(const char* name = "") const { |
| return llvm::BasicBlock::Create(SharkContext::current(), name, function()); |
| } |
| llvm::Value* thread_state_address() const { |
| return builder()->CreateAddressOfStructEntry( |
| thread(), JavaThread::thread_state_offset(), |
| llvm::PointerType::getUnqual(SharkType::jint_type()), |
| "thread_state_address"); |
| } |
| llvm::Value* pending_exception_address() const { |
| return builder()->CreateAddressOfStructEntry( |
| thread(), Thread::pending_exception_offset(), |
| llvm::PointerType::getUnqual(SharkType::oop_type()), |
| "pending_exception_address"); |
| } |
| void CreateSetThreadState(JavaThreadState state) const { |
| builder()->CreateStore( |
| LLVMValue::jint_constant(state), thread_state_address()); |
| } |
| void CreateWriteMemorySerializePage() const { |
| builder()->CreateStore( |
| LLVMValue::jint_constant(1), |
| builder()->CreateIntToPtr( |
| builder()->CreateAdd( |
| LLVMValue::intptr_constant( |
| (intptr_t) os::get_memory_serialize_page()), |
| builder()->CreateAnd( |
| builder()->CreateLShr( |
| builder()->CreatePtrToInt(thread(), SharkType::intptr_type()), |
| LLVMValue::intptr_constant(os::get_serialize_page_shift_count())), |
| LLVMValue::intptr_constant(os::get_serialize_page_mask()))), |
| llvm::PointerType::getUnqual(SharkType::jint_type()))); |
| } |
| void CreateResetHandleBlock() const { |
| llvm::Value *active_handles = builder()->CreateValueOfStructEntry( |
| thread(), |
| JavaThread::active_handles_offset(), |
| SharkType::jniHandleBlock_type(), |
| "active_handles"); |
| builder()->CreateStore( |
| LLVMValue::intptr_constant(0), |
| builder()->CreateAddressOfStructEntry( |
| active_handles, |
| in_ByteSize(JNIHandleBlock::top_offset_in_bytes()), |
| llvm::PointerType::getUnqual(SharkType::intptr_type()), |
| "top")); |
| } |
| llvm::LoadInst* CreateLoadPendingException() const { |
| return builder()->CreateLoad( |
| pending_exception_address(), "pending_exception"); |
| } |
| }; |
| |
| #endif // SHARE_VM_SHARK_SHARKNATIVEWRAPPER_HPP |