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src/share/vm/interpreter/abstractInterpreter.hpp@f95d63e2154a (annotated)

src/share/vm/interpreter/abstractInterpreter.hpp

Tue, 23 Nov 2010 13:22:55 -0800

author
stefank
date
Tue, 23 Nov 2010 13:22:55 -0800
changeset 2314
f95d63e2154a
parent 1907
c18cbe5936b8
child 2508
b92c45f2bc75
permissions
-rw-r--r--

6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

duke@435 1 /*
trims@1907 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435 4 *
duke@435 5 * This code is free software; you can redistribute it and/or modify it
duke@435 6 * under the terms of the GNU General Public License version 2 only, as
duke@435 7 * published by the Free Software Foundation.
duke@435 8 *
duke@435 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@435 13 * accompanied this code).
duke@435 14 *
duke@435 15 * You should have received a copy of the GNU General Public License version
duke@435 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@435 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435 18 *
trims@1907 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907 20 * or visit www.oracle.com if you need additional information or have any
trims@1907 21 * questions.
duke@435 22 *
duke@435 23 */
duke@435 24
stefank@2314 25 #ifndef SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP
stefank@2314 26 #define SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP
stefank@2314 27
stefank@2314 28 #include "code/stubs.hpp"
stefank@2314 29 #include "interpreter/bytecodes.hpp"
stefank@2314 30 #include "runtime/vmThread.hpp"
stefank@2314 31 #include "utilities/top.hpp"
stefank@2314 32 #ifdef TARGET_ARCH_MODEL_x86_32
stefank@2314 33 # include "interp_masm_x86_32.hpp"
stefank@2314 34 #endif
stefank@2314 35 #ifdef TARGET_ARCH_MODEL_x86_64
stefank@2314 36 # include "interp_masm_x86_64.hpp"
stefank@2314 37 #endif
stefank@2314 38 #ifdef TARGET_ARCH_MODEL_sparc
stefank@2314 39 # include "interp_masm_sparc.hpp"
stefank@2314 40 #endif
stefank@2314 41 #ifdef TARGET_ARCH_MODEL_zero
stefank@2314 42 # include "interp_masm_zero.hpp"
stefank@2314 43 #endif
stefank@2314 44 #ifdef TARGET_OS_FAMILY_linux
stefank@2314 45 # include "thread_linux.inline.hpp"
stefank@2314 46 #endif
stefank@2314 47 #ifdef TARGET_OS_FAMILY_solaris
stefank@2314 48 # include "thread_solaris.inline.hpp"
stefank@2314 49 #endif
stefank@2314 50 #ifdef TARGET_OS_FAMILY_windows
stefank@2314 51 # include "thread_windows.inline.hpp"
stefank@2314 52 #endif
stefank@2314 53
twisti@1040 54 // This file contains the platform-independent parts
duke@435 55 // of the abstract interpreter and the abstract interpreter generator.
duke@435 56
duke@435 57 // Organization of the interpreter(s). There exists two different interpreters in hotpot
duke@435 58 // an assembly language version (aka template interpreter) and a high level language version
duke@435 59 // (aka c++ interpreter). Th division of labor is as follows:
duke@435 60
duke@435 61 // Template Interpreter C++ Interpreter Functionality
duke@435 62 //
duke@435 63 // templateTable* bytecodeInterpreter* actual interpretation of bytecodes
duke@435 64 //
duke@435 65 // templateInterpreter* cppInterpreter* generation of assembly code that creates
duke@435 66 // and manages interpreter runtime frames.
duke@435 67 // Also code for populating interpreter
duke@435 68 // frames created during deoptimization.
duke@435 69 //
duke@435 70 // For both template and c++ interpreter. There are common files for aspects of the interpreter
duke@435 71 // that are generic to both interpreters. This is the layout:
duke@435 72 //
duke@435 73 // abstractInterpreter.hpp: generic description of the interpreter.
duke@435 74 // interpreter*: generic frame creation and handling.
duke@435 75 //
duke@435 76
duke@435 77 //------------------------------------------------------------------------------------------------------------------------
duke@435 78 // The C++ interface to the bytecode interpreter(s).
duke@435 79
duke@435 80 class AbstractInterpreter: AllStatic {
duke@435 81 friend class VMStructs;
duke@435 82 friend class Interpreter;
duke@435 83 friend class CppInterpreterGenerator;
duke@435 84 public:
duke@435 85 enum MethodKind {
duke@435 86 zerolocals, // method needs locals initialization
duke@435 87 zerolocals_synchronized, // method needs locals initialization & is synchronized
duke@435 88 native, // native method
duke@435 89 native_synchronized, // native method & is synchronized
duke@435 90 empty, // empty method (code: _return)
duke@435 91 accessor, // accessor method (code: _aload_0, _getfield, _(a|i)return)
duke@435 92 abstract, // abstract method (throws an AbstractMethodException)
jrose@1145 93 method_handle, // java.dyn.MethodHandles::invoke
duke@435 94 java_lang_math_sin, // implementation of java.lang.Math.sin (x)
duke@435 95 java_lang_math_cos, // implementation of java.lang.Math.cos (x)
duke@435 96 java_lang_math_tan, // implementation of java.lang.Math.tan (x)
duke@435 97 java_lang_math_abs, // implementation of java.lang.Math.abs (x)
duke@435 98 java_lang_math_sqrt, // implementation of java.lang.Math.sqrt (x)
duke@435 99 java_lang_math_log, // implementation of java.lang.Math.log (x)
duke@435 100 java_lang_math_log10, // implementation of java.lang.Math.log10 (x)
duke@435 101 number_of_method_entries,
duke@435 102 invalid = -1
duke@435 103 };
duke@435 104
duke@435 105 enum SomeConstants {
duke@435 106 number_of_result_handlers = 10 // number of result handlers for native calls
duke@435 107 };
duke@435 108
duke@435 109 protected:
duke@435 110 static StubQueue* _code; // the interpreter code (codelets)
duke@435 111
duke@435 112 static bool _notice_safepoints; // true if safepoints are activated
duke@435 113
duke@435 114 static address _native_entry_begin; // Region for native entry code
duke@435 115 static address _native_entry_end;
duke@435 116
duke@435 117 // method entry points
duke@435 118 static address _entry_table[number_of_method_entries]; // entry points for a given method
duke@435 119 static address _native_abi_to_tosca[number_of_result_handlers]; // for native method result handlers
duke@435 120 static address _slow_signature_handler; // the native method generic (slow) signature handler
duke@435 121
duke@435 122 static address _rethrow_exception_entry; // rethrows an activation in previous frame
duke@435 123
duke@435 124 friend class AbstractInterpreterGenerator;
duke@435 125 friend class InterpreterGenerator;
duke@435 126 friend class InterpreterMacroAssembler;
duke@435 127
duke@435 128 public:
duke@435 129 // Initialization/debugging
duke@435 130 static void initialize();
duke@435 131 static StubQueue* code() { return _code; }
duke@435 132
duke@435 133
duke@435 134 // Method activation
duke@435 135 static MethodKind method_kind(methodHandle m);
duke@435 136 static address entry_for_kind(MethodKind k) { assert(0 <= k && k < number_of_method_entries, "illegal kind"); return _entry_table[k]; }
duke@435 137 static address entry_for_method(methodHandle m) { return _entry_table[method_kind(m)]; }
duke@435 138
duke@435 139 static void print_method_kind(MethodKind kind) PRODUCT_RETURN;
duke@435 140
never@1609 141 static bool can_be_compiled(methodHandle m);
never@1609 142
duke@435 143 // Runtime support
duke@435 144
duke@435 145 // length = invoke bytecode length (to advance to next bytecode)
duke@435 146 static address deopt_entry (TosState state, int length) { ShouldNotReachHere(); return NULL; }
duke@435 147 static address return_entry (TosState state, int length) { ShouldNotReachHere(); return NULL; }
duke@435 148
duke@435 149 static address rethrow_exception_entry() { return _rethrow_exception_entry; }
duke@435 150
duke@435 151 // Activation size in words for a method that is just being called.
duke@435 152 // Parameters haven't been pushed so count them too.
duke@435 153 static int size_top_interpreter_activation(methodOop method);
duke@435 154
duke@435 155 // Deoptimization support
cfang@1335 156 // Compute the entry address for continuation after
cfang@1335 157 static address deopt_continue_after_entry(methodOop method,
cfang@1335 158 address bcp,
cfang@1335 159 int callee_parameters,
cfang@1335 160 bool is_top_frame);
cfang@1335 161 // Compute the entry address for reexecution
cfang@1335 162 static address deopt_reexecute_entry(methodOop method, address bcp);
cfang@1335 163 // Deoptimization should reexecute this bytecode
cfang@1335 164 static bool bytecode_should_reexecute(Bytecodes::Code code);
duke@435 165
duke@435 166 // share implementation of size_activation and layout_activation:
duke@435 167 static int size_activation(methodOop method,
duke@435 168 int temps,
duke@435 169 int popframe_args,
duke@435 170 int monitors,
duke@435 171 int callee_params,
duke@435 172 int callee_locals,
duke@435 173 bool is_top_frame);
duke@435 174
duke@435 175 static int layout_activation(methodOop method,
duke@435 176 int temps,
duke@435 177 int popframe_args,
duke@435 178 int monitors,
duke@435 179 int callee_params,
duke@435 180 int callee_locals,
duke@435 181 frame* caller,
duke@435 182 frame* interpreter_frame,
duke@435 183 bool is_top_frame);
duke@435 184
duke@435 185 // Runtime support
duke@435 186 static bool is_not_reached( methodHandle method, int bci);
duke@435 187 // Safepoint support
duke@435 188 static void notice_safepoints() { ShouldNotReachHere(); } // stops the thread when reaching a safepoint
duke@435 189 static void ignore_safepoints() { ShouldNotReachHere(); } // ignores safepoints
duke@435 190
duke@435 191 // Support for native calls
duke@435 192 static address slow_signature_handler() { return _slow_signature_handler; }
duke@435 193 static address result_handler(BasicType type) { return _native_abi_to_tosca[BasicType_as_index(type)]; }
duke@435 194 static int BasicType_as_index(BasicType type); // computes index into result_handler_by_index table
duke@435 195 static bool in_native_entry(address pc) { return _native_entry_begin <= pc && pc < _native_entry_end; }
duke@435 196 // Debugging/printing
duke@435 197 static void print(); // prints the interpreter code
duke@435 198
duke@435 199 public:
twisti@1861 200 // Interpreter helpers
twisti@1861 201 const static int stackElementWords = 1;
twisti@1861 202 const static int stackElementSize = stackElementWords * wordSize;
twisti@1861 203 const static int logStackElementSize = LogBytesPerWord;
duke@435 204
duke@435 205 // Local values relative to locals[n]
duke@435 206 static int local_offset_in_bytes(int n) {
twisti@1861 207 return ((frame::interpreter_frame_expression_stack_direction() * n) * stackElementSize);
duke@435 208 }
duke@435 209
jrose@1161 210 // access to stacked values according to type:
jrose@1161 211 static oop* oop_addr_in_slot(intptr_t* slot_addr) {
jrose@1161 212 return (oop*) slot_addr;
jrose@1161 213 }
jrose@1161 214 static jint* int_addr_in_slot(intptr_t* slot_addr) {
jrose@1161 215 if ((int) sizeof(jint) < wordSize && !Bytes::is_Java_byte_ordering_different())
jrose@1161 216 // big-endian LP64
jrose@1161 217 return (jint*)(slot_addr + 1) - 1;
jrose@1161 218 else
jrose@1161 219 return (jint*) slot_addr;
jrose@1161 220 }
jrose@1161 221 static jlong long_in_slot(intptr_t* slot_addr) {
jrose@1161 222 if (sizeof(intptr_t) >= sizeof(jlong)) {
jrose@1161 223 return *(jlong*) slot_addr;
twisti@1861 224 } else {
jrose@1161 225 return Bytes::get_native_u8((address)slot_addr);
jrose@1161 226 }
jrose@1161 227 }
jrose@1161 228 static void set_long_in_slot(intptr_t* slot_addr, jlong value) {
jrose@1161 229 if (sizeof(intptr_t) >= sizeof(jlong)) {
jrose@1161 230 *(jlong*) slot_addr = value;
twisti@1861 231 } else {
jrose@1161 232 Bytes::put_native_u8((address)slot_addr, value);
jrose@1161 233 }
jrose@1161 234 }
jrose@1161 235 static void get_jvalue_in_slot(intptr_t* slot_addr, BasicType type, jvalue* value) {
jrose@1161 236 switch (type) {
jrose@1161 237 case T_BOOLEAN: value->z = *int_addr_in_slot(slot_addr); break;
jrose@1161 238 case T_CHAR: value->c = *int_addr_in_slot(slot_addr); break;
jrose@1161 239 case T_BYTE: value->b = *int_addr_in_slot(slot_addr); break;
jrose@1161 240 case T_SHORT: value->s = *int_addr_in_slot(slot_addr); break;
jrose@1161 241 case T_INT: value->i = *int_addr_in_slot(slot_addr); break;
jrose@1161 242 case T_LONG: value->j = long_in_slot(slot_addr); break;
jrose@1161 243 case T_FLOAT: value->f = *(jfloat*)int_addr_in_slot(slot_addr); break;
jrose@1161 244 case T_DOUBLE: value->d = jdouble_cast(long_in_slot(slot_addr)); break;
jrose@1161 245 case T_OBJECT: value->l = (jobject)*oop_addr_in_slot(slot_addr); break;
jrose@1161 246 default: ShouldNotReachHere();
jrose@1161 247 }
jrose@1161 248 }
jrose@1161 249 static void set_jvalue_in_slot(intptr_t* slot_addr, BasicType type, jvalue* value) {
jrose@1161 250 switch (type) {
jrose@1161 251 case T_BOOLEAN: *int_addr_in_slot(slot_addr) = (value->z != 0); break;
jrose@1161 252 case T_CHAR: *int_addr_in_slot(slot_addr) = value->c; break;
jrose@1161 253 case T_BYTE: *int_addr_in_slot(slot_addr) = value->b; break;
jrose@1161 254 case T_SHORT: *int_addr_in_slot(slot_addr) = value->s; break;
jrose@1161 255 case T_INT: *int_addr_in_slot(slot_addr) = value->i; break;
jrose@1161 256 case T_LONG: set_long_in_slot(slot_addr, value->j); break;
jrose@1161 257 case T_FLOAT: *(jfloat*)int_addr_in_slot(slot_addr) = value->f; break;
jrose@1161 258 case T_DOUBLE: set_long_in_slot(slot_addr, jlong_cast(value->d)); break;
jrose@1161 259 case T_OBJECT: *oop_addr_in_slot(slot_addr) = (oop) value->l; break;
jrose@1161 260 default: ShouldNotReachHere();
jrose@1161 261 }
jrose@1161 262 }
duke@435 263 };
duke@435 264
duke@435 265 //------------------------------------------------------------------------------------------------------------------------
duke@435 266 // The interpreter generator.
duke@435 267
duke@435 268 class Template;
duke@435 269 class AbstractInterpreterGenerator: public StackObj {
duke@435 270 protected:
duke@435 271 InterpreterMacroAssembler* _masm;
duke@435 272
duke@435 273 // shared code sequences
duke@435 274 // Converter for native abi result to tosca result
duke@435 275 address generate_result_handler_for(BasicType type);
duke@435 276 address generate_slow_signature_handler();
duke@435 277
duke@435 278 // entry point generator
duke@435 279 address generate_method_entry(AbstractInterpreter::MethodKind kind);
duke@435 280
duke@435 281 void bang_stack_shadow_pages(bool native_call);
duke@435 282
duke@435 283 void generate_all();
duke@435 284
duke@435 285 public:
duke@435 286 AbstractInterpreterGenerator(StubQueue* _code);
duke@435 287 };
stefank@2314 288
stefank@2314 289 #endif // SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP

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