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src/share/vm/interpreter/abstractInterpreter.hpp@d2134498fd3f
src/share/vm/interpreter/abstractInterpreter.hpp
Thu, 17 Mar 2011 18:29:18 -0700
- author
- jrose
- date
- Thu, 17 Mar 2011 18:29:18 -0700
- changeset 2641
- d2134498fd3f
- parent 2639
- 8033953d67ff
- child 2781
- e1162778c1c8
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7011865: JSR 292 CTW fails: !THREAD->is_Compiler_thread() failed: Can not load classes with the Compiler thre
Reviewed-by: kvn, never
1 /*
2 * Copyright (c) 1997, 2011, 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 #ifndef SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP
26 #define SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP
28 #include "code/stubs.hpp"
29 #include "interpreter/bytecodes.hpp"
30 #include "runtime/vmThread.hpp"
31 #include "utilities/top.hpp"
32 #ifdef TARGET_ARCH_MODEL_x86_32
33 # include "interp_masm_x86_32.hpp"
34 #endif
35 #ifdef TARGET_ARCH_MODEL_x86_64
36 # include "interp_masm_x86_64.hpp"
37 #endif
38 #ifdef TARGET_ARCH_MODEL_sparc
39 # include "interp_masm_sparc.hpp"
40 #endif
41 #ifdef TARGET_ARCH_MODEL_zero
42 # include "interp_masm_zero.hpp"
43 #endif
44 #ifdef TARGET_ARCH_MODEL_arm
45 # include "interp_masm_arm.hpp"
46 #endif
47 #ifdef TARGET_ARCH_MODEL_ppc
48 # include "interp_masm_ppc.hpp"
49 #endif
50 #ifdef TARGET_OS_FAMILY_linux
51 # include "thread_linux.inline.hpp"
52 #endif
53 #ifdef TARGET_OS_FAMILY_solaris
54 # include "thread_solaris.inline.hpp"
55 #endif
56 #ifdef TARGET_OS_FAMILY_windows
57 # include "thread_windows.inline.hpp"
58 #endif
60 // This file contains the platform-independent parts
61 // of the abstract interpreter and the abstract interpreter generator.
63 // Organization of the interpreter(s). There exists two different interpreters in hotpot
64 // an assembly language version (aka template interpreter) and a high level language version
65 // (aka c++ interpreter). Th division of labor is as follows:
67 // Template Interpreter C++ Interpreter Functionality
68 //
69 // templateTable* bytecodeInterpreter* actual interpretation of bytecodes
70 //
71 // templateInterpreter* cppInterpreter* generation of assembly code that creates
72 // and manages interpreter runtime frames.
73 // Also code for populating interpreter
74 // frames created during deoptimization.
75 //
76 // For both template and c++ interpreter. There are common files for aspects of the interpreter
77 // that are generic to both interpreters. This is the layout:
78 //
79 // abstractInterpreter.hpp: generic description of the interpreter.
80 // interpreter*: generic frame creation and handling.
81 //
83 //------------------------------------------------------------------------------------------------------------------------
84 // The C++ interface to the bytecode interpreter(s).
86 class AbstractInterpreter: AllStatic {
87 friend class VMStructs;
88 friend class Interpreter;
89 friend class CppInterpreterGenerator;
90 public:
91 enum MethodKind {
92 zerolocals, // method needs locals initialization
93 zerolocals_synchronized, // method needs locals initialization & is synchronized
94 native, // native method
95 native_synchronized, // native method & is synchronized
96 empty, // empty method (code: _return)
97 accessor, // accessor method (code: _aload_0, _getfield, _(a|i)return)
98 abstract, // abstract method (throws an AbstractMethodException)
99 method_handle, // java.lang.invoke.MethodHandles::invoke
100 java_lang_math_sin, // implementation of java.lang.Math.sin (x)
101 java_lang_math_cos, // implementation of java.lang.Math.cos (x)
102 java_lang_math_tan, // implementation of java.lang.Math.tan (x)
103 java_lang_math_abs, // implementation of java.lang.Math.abs (x)
104 java_lang_math_sqrt, // implementation of java.lang.Math.sqrt (x)
105 java_lang_math_log, // implementation of java.lang.Math.log (x)
106 java_lang_math_log10, // implementation of java.lang.Math.log10 (x)
107 number_of_method_entries,
108 invalid = -1
109 };
111 enum SomeConstants {
112 number_of_result_handlers = 10 // number of result handlers for native calls
113 };
115 protected:
116 static StubQueue* _code; // the interpreter code (codelets)
118 static bool _notice_safepoints; // true if safepoints are activated
120 static address _native_entry_begin; // Region for native entry code
121 static address _native_entry_end;
123 // method entry points
124 static address _entry_table[number_of_method_entries]; // entry points for a given method
125 static address _native_abi_to_tosca[number_of_result_handlers]; // for native method result handlers
126 static address _slow_signature_handler; // the native method generic (slow) signature handler
128 static address _rethrow_exception_entry; // rethrows an activation in previous frame
130 friend class AbstractInterpreterGenerator;
131 friend class InterpreterGenerator;
132 friend class InterpreterMacroAssembler;
134 public:
135 // Initialization/debugging
136 static void initialize();
137 static StubQueue* code() { return _code; }
140 // Method activation
141 static MethodKind method_kind(methodHandle m);
142 static address entry_for_kind(MethodKind k) { assert(0 <= k && k < number_of_method_entries, "illegal kind"); return _entry_table[k]; }
143 static address entry_for_method(methodHandle m) { return _entry_table[method_kind(m)]; }
145 static void print_method_kind(MethodKind kind) PRODUCT_RETURN;
147 static bool can_be_compiled(methodHandle m);
149 // Runtime support
151 // length = invoke bytecode length (to advance to next bytecode)
152 static address deopt_entry (TosState state, int length) { ShouldNotReachHere(); return NULL; }
153 static address return_entry (TosState state, int length) { ShouldNotReachHere(); return NULL; }
155 static address rethrow_exception_entry() { return _rethrow_exception_entry; }
157 // Activation size in words for a method that is just being called.
158 // Parameters haven't been pushed so count them too.
159 static int size_top_interpreter_activation(methodOop method);
161 // Deoptimization support
162 // Compute the entry address for continuation after
163 static address deopt_continue_after_entry(methodOop method,
164 address bcp,
165 int callee_parameters,
166 bool is_top_frame);
167 // Compute the entry address for reexecution
168 static address deopt_reexecute_entry(methodOop method, address bcp);
169 // Deoptimization should reexecute this bytecode
170 static bool bytecode_should_reexecute(Bytecodes::Code code);
172 // share implementation of size_activation and layout_activation:
173 static int size_activation(methodOop method,
174 int temps,
175 int popframe_args,
176 int monitors,
177 int callee_params,
178 int callee_locals,
179 bool is_top_frame);
181 static int layout_activation(methodOop method,
182 int temps,
183 int popframe_args,
184 int monitors,
185 int callee_params,
186 int callee_locals,
187 frame* caller,
188 frame* interpreter_frame,
189 bool is_top_frame);
191 // Runtime support
192 static bool is_not_reached( methodHandle method, int bci);
193 // Safepoint support
194 static void notice_safepoints() { ShouldNotReachHere(); } // stops the thread when reaching a safepoint
195 static void ignore_safepoints() { ShouldNotReachHere(); } // ignores safepoints
197 // Support for native calls
198 static address slow_signature_handler() { return _slow_signature_handler; }
199 static address result_handler(BasicType type) { return _native_abi_to_tosca[BasicType_as_index(type)]; }
200 static int BasicType_as_index(BasicType type); // computes index into result_handler_by_index table
201 static bool in_native_entry(address pc) { return _native_entry_begin <= pc && pc < _native_entry_end; }
202 // Debugging/printing
203 static void print(); // prints the interpreter code
205 public:
206 // Interpreter helpers
207 const static int stackElementWords = 1;
208 const static int stackElementSize = stackElementWords * wordSize;
209 const static int logStackElementSize = LogBytesPerWord;
211 // Local values relative to locals[n]
212 static int local_offset_in_bytes(int n) {
213 return ((frame::interpreter_frame_expression_stack_direction() * n) * stackElementSize);
214 }
216 // access to stacked values according to type:
217 static oop* oop_addr_in_slot(intptr_t* slot_addr) {
218 return (oop*) slot_addr;
219 }
220 static jint* int_addr_in_slot(intptr_t* slot_addr) {
221 if ((int) sizeof(jint) < wordSize && !Bytes::is_Java_byte_ordering_different())
222 // big-endian LP64
223 return (jint*)(slot_addr + 1) - 1;
224 else
225 return (jint*) slot_addr;
226 }
227 static jlong long_in_slot(intptr_t* slot_addr) {
228 if (sizeof(intptr_t) >= sizeof(jlong)) {
229 return *(jlong*) slot_addr;
230 } else {
231 return Bytes::get_native_u8((address)slot_addr);
232 }
233 }
234 static void set_long_in_slot(intptr_t* slot_addr, jlong value) {
235 if (sizeof(intptr_t) >= sizeof(jlong)) {
236 *(jlong*) slot_addr = value;
237 } else {
238 Bytes::put_native_u8((address)slot_addr, value);
239 }
240 }
241 static void get_jvalue_in_slot(intptr_t* slot_addr, BasicType type, jvalue* value) {
242 switch (type) {
243 case T_BOOLEAN: value->z = *int_addr_in_slot(slot_addr); break;
244 case T_CHAR: value->c = *int_addr_in_slot(slot_addr); break;
245 case T_BYTE: value->b = *int_addr_in_slot(slot_addr); break;
246 case T_SHORT: value->s = *int_addr_in_slot(slot_addr); break;
247 case T_INT: value->i = *int_addr_in_slot(slot_addr); break;
248 case T_LONG: value->j = long_in_slot(slot_addr); break;
249 case T_FLOAT: value->f = *(jfloat*)int_addr_in_slot(slot_addr); break;
250 case T_DOUBLE: value->d = jdouble_cast(long_in_slot(slot_addr)); break;
251 case T_OBJECT: value->l = (jobject)*oop_addr_in_slot(slot_addr); break;
252 default: ShouldNotReachHere();
253 }
254 }
255 static void set_jvalue_in_slot(intptr_t* slot_addr, BasicType type, jvalue* value) {
256 switch (type) {
257 case T_BOOLEAN: *int_addr_in_slot(slot_addr) = (value->z != 0); break;
258 case T_CHAR: *int_addr_in_slot(slot_addr) = value->c; break;
259 case T_BYTE: *int_addr_in_slot(slot_addr) = value->b; break;
260 case T_SHORT: *int_addr_in_slot(slot_addr) = value->s; break;
261 case T_INT: *int_addr_in_slot(slot_addr) = value->i; break;
262 case T_LONG: set_long_in_slot(slot_addr, value->j); break;
263 case T_FLOAT: *(jfloat*)int_addr_in_slot(slot_addr) = value->f; break;
264 case T_DOUBLE: set_long_in_slot(slot_addr, jlong_cast(value->d)); break;
265 case T_OBJECT: *oop_addr_in_slot(slot_addr) = (oop) value->l; break;
266 default: ShouldNotReachHere();
267 }
268 }
269 };
271 //------------------------------------------------------------------------------------------------------------------------
272 // The interpreter generator.
274 class Template;
275 class AbstractInterpreterGenerator: public StackObj {
276 protected:
277 InterpreterMacroAssembler* _masm;
279 // shared code sequences
280 // Converter for native abi result to tosca result
281 address generate_result_handler_for(BasicType type);
282 address generate_slow_signature_handler();
284 // entry point generator
285 address generate_method_entry(AbstractInterpreter::MethodKind kind);
287 void bang_stack_shadow_pages(bool native_call);
289 void generate_all();
291 public:
292 AbstractInterpreterGenerator(StubQueue* _code);
293 };
295 #endif // SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP
