1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/shark/sharkNativeWrapper.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,194 @@
1.4 +/*
1.5 + * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
1.6 + * Copyright 2009 Red Hat, Inc.
1.7 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.8 + *
1.9 + * This code is free software; you can redistribute it and/or modify it
1.10 + * under the terms of the GNU General Public License version 2 only, as
1.11 + * published by the Free Software Foundation.
1.12 + *
1.13 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.14 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.15 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.16 + * version 2 for more details (a copy is included in the LICENSE file that
1.17 + * accompanied this code).
1.18 + *
1.19 + * You should have received a copy of the GNU General Public License version
1.20 + * 2 along with this work; if not, write to the Free Software Foundation,
1.21 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.22 + *
1.23 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.24 + * or visit www.oracle.com if you need additional information or have any
1.25 + * questions.
1.26 + *
1.27 + */
1.28 +
1.29 +#ifndef SHARE_VM_SHARK_SHARKNATIVEWRAPPER_HPP
1.30 +#define SHARE_VM_SHARK_SHARKNATIVEWRAPPER_HPP
1.31 +
1.32 +#include "runtime/handles.hpp"
1.33 +#include "shark/llvmHeaders.hpp"
1.34 +#include "shark/sharkBuilder.hpp"
1.35 +#include "shark/sharkContext.hpp"
1.36 +#include "shark/sharkInvariants.hpp"
1.37 +#include "shark/sharkStack.hpp"
1.38 +
1.39 +class SharkNativeWrapper : public SharkCompileInvariants {
1.40 + friend class SharkStackWithNativeFrame;
1.41 +
1.42 + public:
1.43 + static SharkNativeWrapper* build(SharkBuilder* builder,
1.44 + methodHandle target,
1.45 + const char* name,
1.46 + BasicType* arg_types,
1.47 + BasicType return_type) {
1.48 + return new SharkNativeWrapper(builder,
1.49 + target,
1.50 + name,
1.51 + arg_types,
1.52 + return_type);
1.53 + }
1.54 +
1.55 + private:
1.56 + SharkNativeWrapper(SharkBuilder* builder,
1.57 + methodHandle target,
1.58 + const char* name,
1.59 + BasicType* arg_types,
1.60 + BasicType return_type)
1.61 + : SharkCompileInvariants(NULL, builder),
1.62 + _target(target),
1.63 + _arg_types(arg_types),
1.64 + _return_type(return_type),
1.65 + _lock_slot_offset(0) { initialize(name); }
1.66 +
1.67 + private:
1.68 + void initialize(const char* name);
1.69 +
1.70 + private:
1.71 + methodHandle _target;
1.72 + BasicType* _arg_types;
1.73 + BasicType _return_type;
1.74 + llvm::Function* _function;
1.75 + SharkStack* _stack;
1.76 + llvm::Value* _oop_tmp_slot;
1.77 + OopMapSet* _oop_maps;
1.78 + int _receiver_slot_offset;
1.79 + int _lock_slot_offset;
1.80 +
1.81 + // The method being compiled.
1.82 + protected:
1.83 + methodHandle target() const {
1.84 + return _target;
1.85 + }
1.86 +
1.87 + // Properties of the method.
1.88 + protected:
1.89 + int arg_size() const {
1.90 + return target()->size_of_parameters();
1.91 + }
1.92 + BasicType arg_type(int i) const {
1.93 + return _arg_types[i];
1.94 + }
1.95 + BasicType return_type() const {
1.96 + return _return_type;
1.97 + }
1.98 + bool is_static() const {
1.99 + return target()->is_static();
1.100 + }
1.101 + bool is_synchronized() const {
1.102 + return target()->is_synchronized();
1.103 + }
1.104 + bool is_returning_oop() const {
1.105 + return target()->is_returning_oop();
1.106 + }
1.107 +
1.108 + // The LLVM function we are building.
1.109 + public:
1.110 + llvm::Function* function() const {
1.111 + return _function;
1.112 + }
1.113 +
1.114 + // The Zero stack and our frame on it.
1.115 + protected:
1.116 + SharkStack* stack() const {
1.117 + return _stack;
1.118 + }
1.119 +
1.120 + // Temporary oop storage.
1.121 + protected:
1.122 + llvm::Value* oop_tmp_slot() const {
1.123 + assert(is_static() || is_returning_oop(), "should be");
1.124 + return _oop_tmp_slot;
1.125 + }
1.126 +
1.127 + // Information required by nmethod::new_native_nmethod().
1.128 + public:
1.129 + int frame_size() const {
1.130 + return stack()->oopmap_frame_size();
1.131 + }
1.132 + ByteSize receiver_offset() const {
1.133 + return in_ByteSize(_receiver_slot_offset * wordSize);
1.134 + }
1.135 + ByteSize lock_offset() const {
1.136 + return in_ByteSize(_lock_slot_offset * wordSize);
1.137 + }
1.138 + OopMapSet* oop_maps() const {
1.139 + return _oop_maps;
1.140 + }
1.141 +
1.142 + // Helpers.
1.143 + private:
1.144 + llvm::BasicBlock* CreateBlock(const char* name = "") const {
1.145 + return llvm::BasicBlock::Create(SharkContext::current(), name, function());
1.146 + }
1.147 + llvm::Value* thread_state_address() const {
1.148 + return builder()->CreateAddressOfStructEntry(
1.149 + thread(), JavaThread::thread_state_offset(),
1.150 + llvm::PointerType::getUnqual(SharkType::jint_type()),
1.151 + "thread_state_address");
1.152 + }
1.153 + llvm::Value* pending_exception_address() const {
1.154 + return builder()->CreateAddressOfStructEntry(
1.155 + thread(), Thread::pending_exception_offset(),
1.156 + llvm::PointerType::getUnqual(SharkType::oop_type()),
1.157 + "pending_exception_address");
1.158 + }
1.159 + void CreateSetThreadState(JavaThreadState state) const {
1.160 + builder()->CreateStore(
1.161 + LLVMValue::jint_constant(state), thread_state_address());
1.162 + }
1.163 + void CreateWriteMemorySerializePage() const {
1.164 + builder()->CreateStore(
1.165 + LLVMValue::jint_constant(1),
1.166 + builder()->CreateIntToPtr(
1.167 + builder()->CreateAdd(
1.168 + LLVMValue::intptr_constant(
1.169 + (intptr_t) os::get_memory_serialize_page()),
1.170 + builder()->CreateAnd(
1.171 + builder()->CreateLShr(
1.172 + builder()->CreatePtrToInt(thread(), SharkType::intptr_type()),
1.173 + LLVMValue::intptr_constant(os::get_serialize_page_shift_count())),
1.174 + LLVMValue::intptr_constant(os::get_serialize_page_mask()))),
1.175 + llvm::PointerType::getUnqual(SharkType::jint_type())));
1.176 + }
1.177 + void CreateResetHandleBlock() const {
1.178 + llvm::Value *active_handles = builder()->CreateValueOfStructEntry(
1.179 + thread(),
1.180 + JavaThread::active_handles_offset(),
1.181 + SharkType::jniHandleBlock_type(),
1.182 + "active_handles");
1.183 + builder()->CreateStore(
1.184 + LLVMValue::intptr_constant(0),
1.185 + builder()->CreateAddressOfStructEntry(
1.186 + active_handles,
1.187 + in_ByteSize(JNIHandleBlock::top_offset_in_bytes()),
1.188 + llvm::PointerType::getUnqual(SharkType::intptr_type()),
1.189 + "top"));
1.190 + }
1.191 + llvm::LoadInst* CreateLoadPendingException() const {
1.192 + return builder()->CreateLoad(
1.193 + pending_exception_address(), "pending_exception");
1.194 + }
1.195 +};
1.196 +
1.197 +#endif // SHARE_VM_SHARK_SHARKNATIVEWRAPPER_HPP
