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src/share/vm/interpreter/abstractInterpreter.hpp@2d8a650513c2
src/share/vm/interpreter/abstractInterpreter.hpp
Fri, 29 Apr 2016 00:06:10 +0800
- author
- aoqi
- date
- Fri, 29 Apr 2016 00:06:10 +0800
- changeset 1
- 2d8a650513c2
- parent 0
- f90c822e73f8
- child 6876
- 710a3c8b516e
- permissions
- -rw-r--r--
Added MIPS 64-bit port.
1 /*
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 /*
26 * This file has been modified by Loongson Technology in 2015. These
27 * modifications are Copyright (c) 2015 Loongson Technology, and are made
28 * available on the same license terms set forth above.
29 */
31 #ifndef SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP
32 #define SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP
34 #include "code/stubs.hpp"
35 #include "interpreter/bytecodes.hpp"
36 #include "runtime/thread.inline.hpp"
37 #include "runtime/vmThread.hpp"
38 #include "utilities/top.hpp"
39 #ifdef TARGET_ARCH_x86
40 # include "interp_masm_x86.hpp"
41 #endif
42 #ifdef TARGET_ARCH_MODEL_mips_64
43 # include "interp_masm_mips_64.hpp"
44 #endif
45 #ifdef TARGET_ARCH_MODEL_sparc
46 # include "interp_masm_sparc.hpp"
47 #endif
48 #ifdef TARGET_ARCH_MODEL_zero
49 # include "interp_masm_zero.hpp"
50 #endif
51 #ifdef TARGET_ARCH_MODEL_arm
52 # include "interp_masm_arm.hpp"
53 #endif
54 #ifdef TARGET_ARCH_MODEL_ppc_32
55 # include "interp_masm_ppc_32.hpp"
56 #endif
57 #ifdef TARGET_ARCH_MODEL_ppc_64
58 # include "interp_masm_ppc_64.hpp"
59 #endif
61 // This file contains the platform-independent parts
62 // of the abstract interpreter and the abstract interpreter generator.
64 // Organization of the interpreter(s). There exists two different interpreters in hotpot
65 // an assembly language version (aka template interpreter) and a high level language version
66 // (aka c++ interpreter). Th division of labor is as follows:
68 // Template Interpreter C++ Interpreter Functionality
69 //
70 // templateTable* bytecodeInterpreter* actual interpretation of bytecodes
71 //
72 // templateInterpreter* cppInterpreter* generation of assembly code that creates
73 // and manages interpreter runtime frames.
74 // Also code for populating interpreter
75 // frames created during deoptimization.
76 //
77 // For both template and c++ interpreter. There are common files for aspects of the interpreter
78 // that are generic to both interpreters. This is the layout:
79 //
80 // abstractInterpreter.hpp: generic description of the interpreter.
81 // interpreter*: generic frame creation and handling.
82 //
84 //------------------------------------------------------------------------------------------------------------------------
85 // The C++ interface to the bytecode interpreter(s).
87 class AbstractInterpreter: AllStatic {
88 friend class VMStructs;
89 friend class Interpreter;
90 friend class CppInterpreterGenerator;
91 public:
92 enum MethodKind {
93 zerolocals, // method needs locals initialization
94 zerolocals_synchronized, // method needs locals initialization & is synchronized
95 native, // native method
96 native_synchronized, // native method & is synchronized
97 empty, // empty method (code: _return)
98 accessor, // accessor method (code: _aload_0, _getfield, _(a|i)return)
99 abstract, // abstract method (throws an AbstractMethodException)
100 method_handle_invoke_FIRST, // java.lang.invoke.MethodHandles::invokeExact, etc.
101 method_handle_invoke_LAST = (method_handle_invoke_FIRST
102 + (vmIntrinsics::LAST_MH_SIG_POLY
103 - vmIntrinsics::FIRST_MH_SIG_POLY)),
104 java_lang_math_sin, // implementation of java.lang.Math.sin (x)
105 java_lang_math_cos, // implementation of java.lang.Math.cos (x)
106 java_lang_math_tan, // implementation of java.lang.Math.tan (x)
107 java_lang_math_abs, // implementation of java.lang.Math.abs (x)
108 java_lang_math_sqrt, // implementation of java.lang.Math.sqrt (x)
109 java_lang_math_log, // implementation of java.lang.Math.log (x)
110 java_lang_math_log10, // implementation of java.lang.Math.log10 (x)
111 java_lang_math_pow, // implementation of java.lang.Math.pow (x,y)
112 java_lang_math_exp, // implementation of java.lang.Math.exp (x)
113 java_lang_ref_reference_get, // implementation of java.lang.ref.Reference.get()
114 java_util_zip_CRC32_update, // implementation of java.util.zip.CRC32.update()
115 java_util_zip_CRC32_updateBytes, // implementation of java.util.zip.CRC32.updateBytes()
116 java_util_zip_CRC32_updateByteBuffer, // implementation of java.util.zip.CRC32.updateByteBuffer()
117 number_of_method_entries,
118 invalid = -1
119 };
121 // Conversion from the part of the above enum to vmIntrinsics::_invokeExact, etc.
122 static vmIntrinsics::ID method_handle_intrinsic(MethodKind kind) {
123 if (kind >= method_handle_invoke_FIRST && kind <= method_handle_invoke_LAST)
124 return (vmIntrinsics::ID)( vmIntrinsics::FIRST_MH_SIG_POLY + (kind - method_handle_invoke_FIRST) );
125 else
126 return vmIntrinsics::_none;
127 }
129 enum SomeConstants {
130 number_of_result_handlers = 10 // number of result handlers for native calls
131 };
133 protected:
134 static StubQueue* _code; // the interpreter code (codelets)
136 static bool _notice_safepoints; // true if safepoints are activated
138 static address _native_entry_begin; // Region for native entry code
139 static address _native_entry_end;
141 // method entry points
142 static address _entry_table[number_of_method_entries]; // entry points for a given method
143 static address _native_abi_to_tosca[number_of_result_handlers]; // for native method result handlers
144 static address _slow_signature_handler; // the native method generic (slow) signature handler
146 static address _rethrow_exception_entry; // rethrows an activation in previous frame
148 friend class AbstractInterpreterGenerator;
149 friend class InterpreterGenerator;
150 friend class InterpreterMacroAssembler;
152 public:
153 // Initialization/debugging
154 static void initialize();
155 static StubQueue* code() { return _code; }
158 // Method activation
159 static MethodKind method_kind(methodHandle m);
160 static address entry_for_kind(MethodKind k) { assert(0 <= k && k < number_of_method_entries, "illegal kind"); return _entry_table[k]; }
161 static address entry_for_method(methodHandle m) { return entry_for_kind(method_kind(m)); }
163 // used for bootstrapping method handles:
164 static void set_entry_for_kind(MethodKind k, address e);
166 static void print_method_kind(MethodKind kind) PRODUCT_RETURN;
168 static bool can_be_compiled(methodHandle m);
170 // Runtime support
172 // length = invoke bytecode length (to advance to next bytecode)
173 static address deopt_entry(TosState state, int length) { ShouldNotReachHere(); return NULL; }
174 static address return_entry(TosState state, int length, Bytecodes::Code code) { ShouldNotReachHere(); return NULL; }
176 static address rethrow_exception_entry() { return _rethrow_exception_entry; }
178 // Activation size in words for a method that is just being called.
179 // Parameters haven't been pushed so count them too.
180 static int size_top_interpreter_activation(Method* method);
182 // Deoptimization support
183 // Compute the entry address for continuation after
184 static address deopt_continue_after_entry(Method* method,
185 address bcp,
186 int callee_parameters,
187 bool is_top_frame);
188 // Compute the entry address for reexecution
189 static address deopt_reexecute_entry(Method* method, address bcp);
190 // Deoptimization should reexecute this bytecode
191 static bool bytecode_should_reexecute(Bytecodes::Code code);
193 // deoptimization support
194 static int size_activation(int max_stack,
195 int temps,
196 int extra_args,
197 int monitors,
198 int callee_params,
199 int callee_locals,
200 bool is_top_frame);
202 static void layout_activation(Method* method,
203 int temps,
204 int popframe_args,
205 int monitors,
206 int caller_actual_parameters,
207 int callee_params,
208 int callee_locals,
209 frame* caller,
210 frame* interpreter_frame,
211 bool is_top_frame,
212 bool is_bottom_frame);
214 // Runtime support
215 static bool is_not_reached( methodHandle method, int bci);
216 // Safepoint support
217 static void notice_safepoints() { ShouldNotReachHere(); } // stops the thread when reaching a safepoint
218 static void ignore_safepoints() { ShouldNotReachHere(); } // ignores safepoints
220 // Support for native calls
221 static address slow_signature_handler() { return _slow_signature_handler; }
222 static address result_handler(BasicType type) { return _native_abi_to_tosca[BasicType_as_index(type)]; }
223 static int BasicType_as_index(BasicType type); // computes index into result_handler_by_index table
224 static bool in_native_entry(address pc) { return _native_entry_begin <= pc && pc < _native_entry_end; }
225 // Debugging/printing
226 static void print(); // prints the interpreter code
228 public:
229 // Interpreter helpers
230 const static int stackElementWords = 1;
231 const static int stackElementSize = stackElementWords * wordSize;
232 const static int logStackElementSize = LogBytesPerWord;
234 // Local values relative to locals[n]
235 static int local_offset_in_bytes(int n) {
236 return ((frame::interpreter_frame_expression_stack_direction() * n) * stackElementSize);
237 }
239 // access to stacked values according to type:
240 static oop* oop_addr_in_slot(intptr_t* slot_addr) {
241 return (oop*) slot_addr;
242 }
243 static jint* int_addr_in_slot(intptr_t* slot_addr) {
244 if ((int) sizeof(jint) < wordSize && !Bytes::is_Java_byte_ordering_different())
245 // big-endian LP64
246 return (jint*)(slot_addr + 1) - 1;
247 else
248 return (jint*) slot_addr;
249 }
250 static jlong long_in_slot(intptr_t* slot_addr) {
251 if (sizeof(intptr_t) >= sizeof(jlong)) {
252 return *(jlong*) slot_addr;
253 } else {
254 return Bytes::get_native_u8((address)slot_addr);
255 }
256 }
257 static void set_long_in_slot(intptr_t* slot_addr, jlong value) {
258 if (sizeof(intptr_t) >= sizeof(jlong)) {
259 *(jlong*) slot_addr = value;
260 } else {
261 Bytes::put_native_u8((address)slot_addr, value);
262 }
263 }
264 static void get_jvalue_in_slot(intptr_t* slot_addr, BasicType type, jvalue* value) {
265 switch (type) {
266 case T_BOOLEAN: value->z = *int_addr_in_slot(slot_addr); break;
267 case T_CHAR: value->c = *int_addr_in_slot(slot_addr); break;
268 case T_BYTE: value->b = *int_addr_in_slot(slot_addr); break;
269 case T_SHORT: value->s = *int_addr_in_slot(slot_addr); break;
270 case T_INT: value->i = *int_addr_in_slot(slot_addr); break;
271 case T_LONG: value->j = long_in_slot(slot_addr); break;
272 case T_FLOAT: value->f = *(jfloat*)int_addr_in_slot(slot_addr); break;
273 case T_DOUBLE: value->d = jdouble_cast(long_in_slot(slot_addr)); break;
274 case T_OBJECT: value->l = (jobject)*oop_addr_in_slot(slot_addr); break;
275 default: ShouldNotReachHere();
276 }
277 }
278 static void set_jvalue_in_slot(intptr_t* slot_addr, BasicType type, jvalue* value) {
279 switch (type) {
280 case T_BOOLEAN: *int_addr_in_slot(slot_addr) = (value->z != 0); break;
281 case T_CHAR: *int_addr_in_slot(slot_addr) = value->c; break;
282 case T_BYTE: *int_addr_in_slot(slot_addr) = value->b; break;
283 case T_SHORT: *int_addr_in_slot(slot_addr) = value->s; break;
284 case T_INT: *int_addr_in_slot(slot_addr) = value->i; break;
285 case T_LONG: set_long_in_slot(slot_addr, value->j); break;
286 case T_FLOAT: *(jfloat*)int_addr_in_slot(slot_addr) = value->f; break;
287 case T_DOUBLE: set_long_in_slot(slot_addr, jlong_cast(value->d)); break;
288 case T_OBJECT: *oop_addr_in_slot(slot_addr) = (oop) value->l; break;
289 default: ShouldNotReachHere();
290 }
291 }
292 };
294 //------------------------------------------------------------------------------------------------------------------------
295 // The interpreter generator.
297 class Template;
298 class AbstractInterpreterGenerator: public StackObj {
299 protected:
300 InterpreterMacroAssembler* _masm;
302 // shared code sequences
303 // Converter for native abi result to tosca result
304 address generate_result_handler_for(BasicType type);
305 address generate_slow_signature_handler();
307 // entry point generator
308 address generate_method_entry(AbstractInterpreter::MethodKind kind);
310 void bang_stack_shadow_pages(bool native_call);
312 void generate_all();
313 void initialize_method_handle_entries();
315 public:
316 AbstractInterpreterGenerator(StubQueue* _code);
317 };
319 #endif // SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP
