Mercurial > hg > truffle
comparison src/share/vm/shark/sharkNativeWrapper.hpp @ 1692:d2ede61b7a12
6976186: integrate Shark HotSpot changes
Summary: Shark is a JIT compiler for Zero that uses the LLVM compiler infrastructure.
Reviewed-by: kvn, twisti
Contributed-by: Gary Benson <gbenson@redhat.com>
author | twisti |
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date | Wed, 11 Aug 2010 05:51:21 -0700 |
parents | |
children | f95d63e2154a |
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1691:4a665be40fd3 | 1692:d2ede61b7a12 |
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1 /* | |
2 * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved. | |
3 * Copyright 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 SharkNativeWrapper : public SharkCompileInvariants { | |
27 friend class SharkStackWithNativeFrame; | |
28 | |
29 public: | |
30 static SharkNativeWrapper* build(SharkBuilder* builder, | |
31 methodHandle target, | |
32 const char* name, | |
33 BasicType* arg_types, | |
34 BasicType return_type) { | |
35 return new SharkNativeWrapper(builder, | |
36 target, | |
37 name, | |
38 arg_types, | |
39 return_type); | |
40 } | |
41 | |
42 private: | |
43 SharkNativeWrapper(SharkBuilder* builder, | |
44 methodHandle target, | |
45 const char* name, | |
46 BasicType* arg_types, | |
47 BasicType return_type) | |
48 : SharkCompileInvariants(NULL, builder), | |
49 _target(target), | |
50 _arg_types(arg_types), | |
51 _return_type(return_type), | |
52 _lock_slot_offset(0) { initialize(name); } | |
53 | |
54 private: | |
55 void initialize(const char* name); | |
56 | |
57 private: | |
58 methodHandle _target; | |
59 BasicType* _arg_types; | |
60 BasicType _return_type; | |
61 llvm::Function* _function; | |
62 SharkStack* _stack; | |
63 llvm::Value* _oop_tmp_slot; | |
64 OopMapSet* _oop_maps; | |
65 int _receiver_slot_offset; | |
66 int _lock_slot_offset; | |
67 | |
68 // The method being compiled. | |
69 protected: | |
70 methodHandle target() const { | |
71 return _target; | |
72 } | |
73 | |
74 // Properties of the method. | |
75 protected: | |
76 int arg_size() const { | |
77 return target()->size_of_parameters(); | |
78 } | |
79 BasicType arg_type(int i) const { | |
80 return _arg_types[i]; | |
81 } | |
82 BasicType return_type() const { | |
83 return _return_type; | |
84 } | |
85 bool is_static() const { | |
86 return target()->is_static(); | |
87 } | |
88 bool is_synchronized() const { | |
89 return target()->is_synchronized(); | |
90 } | |
91 bool is_returning_oop() const { | |
92 return target()->is_returning_oop(); | |
93 } | |
94 | |
95 // The LLVM function we are building. | |
96 public: | |
97 llvm::Function* function() const { | |
98 return _function; | |
99 } | |
100 | |
101 // The Zero stack and our frame on it. | |
102 protected: | |
103 SharkStack* stack() const { | |
104 return _stack; | |
105 } | |
106 | |
107 // Temporary oop storage. | |
108 protected: | |
109 llvm::Value* oop_tmp_slot() const { | |
110 assert(is_static() || is_returning_oop(), "should be"); | |
111 return _oop_tmp_slot; | |
112 } | |
113 | |
114 // Information required by nmethod::new_native_nmethod(). | |
115 public: | |
116 int frame_size() const { | |
117 return stack()->oopmap_frame_size(); | |
118 } | |
119 ByteSize receiver_offset() const { | |
120 return in_ByteSize(_receiver_slot_offset * wordSize); | |
121 } | |
122 ByteSize lock_offset() const { | |
123 return in_ByteSize(_lock_slot_offset * wordSize); | |
124 } | |
125 OopMapSet* oop_maps() const { | |
126 return _oop_maps; | |
127 } | |
128 | |
129 // Helpers. | |
130 private: | |
131 llvm::BasicBlock* CreateBlock(const char* name = "") const { | |
132 return llvm::BasicBlock::Create(SharkContext::current(), name, function()); | |
133 } | |
134 llvm::Value* thread_state_address() const { | |
135 return builder()->CreateAddressOfStructEntry( | |
136 thread(), JavaThread::thread_state_offset(), | |
137 llvm::PointerType::getUnqual(SharkType::jint_type()), | |
138 "thread_state_address"); | |
139 } | |
140 llvm::Value* pending_exception_address() const { | |
141 return builder()->CreateAddressOfStructEntry( | |
142 thread(), Thread::pending_exception_offset(), | |
143 llvm::PointerType::getUnqual(SharkType::oop_type()), | |
144 "pending_exception_address"); | |
145 } | |
146 void CreateSetThreadState(JavaThreadState state) const { | |
147 builder()->CreateStore( | |
148 LLVMValue::jint_constant(state), thread_state_address()); | |
149 } | |
150 void CreateWriteMemorySerializePage() const { | |
151 builder()->CreateStore( | |
152 LLVMValue::jint_constant(1), | |
153 builder()->CreateIntToPtr( | |
154 builder()->CreateAdd( | |
155 LLVMValue::intptr_constant( | |
156 (intptr_t) os::get_memory_serialize_page()), | |
157 builder()->CreateAnd( | |
158 builder()->CreateLShr( | |
159 builder()->CreatePtrToInt(thread(), SharkType::intptr_type()), | |
160 LLVMValue::intptr_constant(os::get_serialize_page_shift_count())), | |
161 LLVMValue::intptr_constant(os::get_serialize_page_mask()))), | |
162 llvm::PointerType::getUnqual(SharkType::jint_type()))); | |
163 } | |
164 void CreateResetHandleBlock() const { | |
165 llvm::Value *active_handles = builder()->CreateValueOfStructEntry( | |
166 thread(), | |
167 JavaThread::active_handles_offset(), | |
168 SharkType::jniHandleBlock_type(), | |
169 "active_handles"); | |
170 builder()->CreateStore( | |
171 LLVMValue::intptr_constant(0), | |
172 builder()->CreateAddressOfStructEntry( | |
173 active_handles, | |
174 in_ByteSize(JNIHandleBlock::top_offset_in_bytes()), | |
175 llvm::PointerType::getUnqual(SharkType::intptr_type()), | |
176 "top")); | |
177 } | |
178 llvm::LoadInst* CreateLoadPendingException() const { | |
179 return builder()->CreateLoad( | |
180 pending_exception_address(), "pending_exception"); | |
181 } | |
182 }; |