annotate src/share/vm/interpreter/abstractInterpreter.hpp @ 2073:b92c45f2bc75

7016023: Enable building ARM and PPC from src/closed repository Reviewed-by: dholmes, bdelsart
author bobv
date Wed, 02 Feb 2011 11:35:26 -0500
parents f95d63e2154a
children 8033953d67ff
rev   line source
duke@0 1 /*
trims@1472 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
duke@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@0 4 *
duke@0 5 * This code is free software; you can redistribute it and/or modify it
duke@0 6 * under the terms of the GNU General Public License version 2 only, as
duke@0 7 * published by the Free Software Foundation.
duke@0 8 *
duke@0 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@0 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@0 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@0 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@0 13 * accompanied this code).
duke@0 14 *
duke@0 15 * You should have received a copy of the GNU General Public License version
duke@0 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@0 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@0 18 *
trims@1472 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1472 20 * or visit www.oracle.com if you need additional information or have any
trims@1472 21 * questions.
duke@0 22 *
duke@0 23 */
duke@0 24
stefank@1879 25 #ifndef SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP
stefank@1879 26 #define SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP
stefank@1879 27
stefank@1879 28 #include "code/stubs.hpp"
stefank@1879 29 #include "interpreter/bytecodes.hpp"
stefank@1879 30 #include "runtime/vmThread.hpp"
stefank@1879 31 #include "utilities/top.hpp"
stefank@1879 32 #ifdef TARGET_ARCH_MODEL_x86_32
stefank@1879 33 # include "interp_masm_x86_32.hpp"
stefank@1879 34 #endif
stefank@1879 35 #ifdef TARGET_ARCH_MODEL_x86_64
stefank@1879 36 # include "interp_masm_x86_64.hpp"
stefank@1879 37 #endif
stefank@1879 38 #ifdef TARGET_ARCH_MODEL_sparc
stefank@1879 39 # include "interp_masm_sparc.hpp"
stefank@1879 40 #endif
stefank@1879 41 #ifdef TARGET_ARCH_MODEL_zero
stefank@1879 42 # include "interp_masm_zero.hpp"
stefank@1879 43 #endif
bobv@2073 44 #ifdef TARGET_ARCH_MODEL_arm
bobv@2073 45 # include "interp_masm_arm.hpp"
bobv@2073 46 #endif
bobv@2073 47 #ifdef TARGET_ARCH_MODEL_ppc
bobv@2073 48 # include "interp_masm_ppc.hpp"
bobv@2073 49 #endif
stefank@1879 50 #ifdef TARGET_OS_FAMILY_linux
stefank@1879 51 # include "thread_linux.inline.hpp"
stefank@1879 52 #endif
stefank@1879 53 #ifdef TARGET_OS_FAMILY_solaris
stefank@1879 54 # include "thread_solaris.inline.hpp"
stefank@1879 55 #endif
stefank@1879 56 #ifdef TARGET_OS_FAMILY_windows
stefank@1879 57 # include "thread_windows.inline.hpp"
stefank@1879 58 #endif
stefank@1879 59
twisti@605 60 // This file contains the platform-independent parts
duke@0 61 // of the abstract interpreter and the abstract interpreter generator.
duke@0 62
duke@0 63 // Organization of the interpreter(s). There exists two different interpreters in hotpot
duke@0 64 // an assembly language version (aka template interpreter) and a high level language version
duke@0 65 // (aka c++ interpreter). Th division of labor is as follows:
duke@0 66
duke@0 67 // Template Interpreter C++ Interpreter Functionality
duke@0 68 //
duke@0 69 // templateTable* bytecodeInterpreter* actual interpretation of bytecodes
duke@0 70 //
duke@0 71 // templateInterpreter* cppInterpreter* generation of assembly code that creates
duke@0 72 // and manages interpreter runtime frames.
duke@0 73 // Also code for populating interpreter
duke@0 74 // frames created during deoptimization.
duke@0 75 //
duke@0 76 // For both template and c++ interpreter. There are common files for aspects of the interpreter
duke@0 77 // that are generic to both interpreters. This is the layout:
duke@0 78 //
duke@0 79 // abstractInterpreter.hpp: generic description of the interpreter.
duke@0 80 // interpreter*: generic frame creation and handling.
duke@0 81 //
duke@0 82
duke@0 83 //------------------------------------------------------------------------------------------------------------------------
duke@0 84 // The C++ interface to the bytecode interpreter(s).
duke@0 85
duke@0 86 class AbstractInterpreter: AllStatic {
duke@0 87 friend class VMStructs;
duke@0 88 friend class Interpreter;
duke@0 89 friend class CppInterpreterGenerator;
duke@0 90 public:
duke@0 91 enum MethodKind {
duke@0 92 zerolocals, // method needs locals initialization
duke@0 93 zerolocals_synchronized, // method needs locals initialization & is synchronized
duke@0 94 native, // native method
duke@0 95 native_synchronized, // native method & is synchronized
duke@0 96 empty, // empty method (code: _return)
duke@0 97 accessor, // accessor method (code: _aload_0, _getfield, _(a|i)return)
duke@0 98 abstract, // abstract method (throws an AbstractMethodException)
jrose@710 99 method_handle, // java.dyn.MethodHandles::invoke
duke@0 100 java_lang_math_sin, // implementation of java.lang.Math.sin (x)
duke@0 101 java_lang_math_cos, // implementation of java.lang.Math.cos (x)
duke@0 102 java_lang_math_tan, // implementation of java.lang.Math.tan (x)
duke@0 103 java_lang_math_abs, // implementation of java.lang.Math.abs (x)
duke@0 104 java_lang_math_sqrt, // implementation of java.lang.Math.sqrt (x)
duke@0 105 java_lang_math_log, // implementation of java.lang.Math.log (x)
duke@0 106 java_lang_math_log10, // implementation of java.lang.Math.log10 (x)
duke@0 107 number_of_method_entries,
duke@0 108 invalid = -1
duke@0 109 };
duke@0 110
duke@0 111 enum SomeConstants {
duke@0 112 number_of_result_handlers = 10 // number of result handlers for native calls
duke@0 113 };
duke@0 114
duke@0 115 protected:
duke@0 116 static StubQueue* _code; // the interpreter code (codelets)
duke@0 117
duke@0 118 static bool _notice_safepoints; // true if safepoints are activated
duke@0 119
duke@0 120 static address _native_entry_begin; // Region for native entry code
duke@0 121 static address _native_entry_end;
duke@0 122
duke@0 123 // method entry points
duke@0 124 static address _entry_table[number_of_method_entries]; // entry points for a given method
duke@0 125 static address _native_abi_to_tosca[number_of_result_handlers]; // for native method result handlers
duke@0 126 static address _slow_signature_handler; // the native method generic (slow) signature handler
duke@0 127
duke@0 128 static address _rethrow_exception_entry; // rethrows an activation in previous frame
duke@0 129
duke@0 130 friend class AbstractInterpreterGenerator;
duke@0 131 friend class InterpreterGenerator;
duke@0 132 friend class InterpreterMacroAssembler;
duke@0 133
duke@0 134 public:
duke@0 135 // Initialization/debugging
duke@0 136 static void initialize();
duke@0 137 static StubQueue* code() { return _code; }
duke@0 138
duke@0 139
duke@0 140 // Method activation
duke@0 141 static MethodKind method_kind(methodHandle m);
duke@0 142 static address entry_for_kind(MethodKind k) { assert(0 <= k && k < number_of_method_entries, "illegal kind"); return _entry_table[k]; }
duke@0 143 static address entry_for_method(methodHandle m) { return _entry_table[method_kind(m)]; }
duke@0 144
duke@0 145 static void print_method_kind(MethodKind kind) PRODUCT_RETURN;
duke@0 146
never@1174 147 static bool can_be_compiled(methodHandle m);
never@1174 148
duke@0 149 // Runtime support
duke@0 150
duke@0 151 // length = invoke bytecode length (to advance to next bytecode)
duke@0 152 static address deopt_entry (TosState state, int length) { ShouldNotReachHere(); return NULL; }
duke@0 153 static address return_entry (TosState state, int length) { ShouldNotReachHere(); return NULL; }
duke@0 154
duke@0 155 static address rethrow_exception_entry() { return _rethrow_exception_entry; }
duke@0 156
duke@0 157 // Activation size in words for a method that is just being called.
duke@0 158 // Parameters haven't been pushed so count them too.
duke@0 159 static int size_top_interpreter_activation(methodOop method);
duke@0 160
duke@0 161 // Deoptimization support
cfang@900 162 // Compute the entry address for continuation after
cfang@900 163 static address deopt_continue_after_entry(methodOop method,
cfang@900 164 address bcp,
cfang@900 165 int callee_parameters,
cfang@900 166 bool is_top_frame);
cfang@900 167 // Compute the entry address for reexecution
cfang@900 168 static address deopt_reexecute_entry(methodOop method, address bcp);
cfang@900 169 // Deoptimization should reexecute this bytecode
cfang@900 170 static bool bytecode_should_reexecute(Bytecodes::Code code);
duke@0 171
duke@0 172 // share implementation of size_activation and layout_activation:
duke@0 173 static int size_activation(methodOop method,
duke@0 174 int temps,
duke@0 175 int popframe_args,
duke@0 176 int monitors,
duke@0 177 int callee_params,
duke@0 178 int callee_locals,
duke@0 179 bool is_top_frame);
duke@0 180
duke@0 181 static int layout_activation(methodOop method,
duke@0 182 int temps,
duke@0 183 int popframe_args,
duke@0 184 int monitors,
duke@0 185 int callee_params,
duke@0 186 int callee_locals,
duke@0 187 frame* caller,
duke@0 188 frame* interpreter_frame,
duke@0 189 bool is_top_frame);
duke@0 190
duke@0 191 // Runtime support
duke@0 192 static bool is_not_reached( methodHandle method, int bci);
duke@0 193 // Safepoint support
duke@0 194 static void notice_safepoints() { ShouldNotReachHere(); } // stops the thread when reaching a safepoint
duke@0 195 static void ignore_safepoints() { ShouldNotReachHere(); } // ignores safepoints
duke@0 196
duke@0 197 // Support for native calls
duke@0 198 static address slow_signature_handler() { return _slow_signature_handler; }
duke@0 199 static address result_handler(BasicType type) { return _native_abi_to_tosca[BasicType_as_index(type)]; }
duke@0 200 static int BasicType_as_index(BasicType type); // computes index into result_handler_by_index table
duke@0 201 static bool in_native_entry(address pc) { return _native_entry_begin <= pc && pc < _native_entry_end; }
duke@0 202 // Debugging/printing
duke@0 203 static void print(); // prints the interpreter code
duke@0 204
duke@0 205 public:
twisti@1426 206 // Interpreter helpers
twisti@1426 207 const static int stackElementWords = 1;
twisti@1426 208 const static int stackElementSize = stackElementWords * wordSize;
twisti@1426 209 const static int logStackElementSize = LogBytesPerWord;
duke@0 210
duke@0 211 // Local values relative to locals[n]
duke@0 212 static int local_offset_in_bytes(int n) {
twisti@1426 213 return ((frame::interpreter_frame_expression_stack_direction() * n) * stackElementSize);
duke@0 214 }
duke@0 215
jrose@726 216 // access to stacked values according to type:
jrose@726 217 static oop* oop_addr_in_slot(intptr_t* slot_addr) {
jrose@726 218 return (oop*) slot_addr;
jrose@726 219 }
jrose@726 220 static jint* int_addr_in_slot(intptr_t* slot_addr) {
jrose@726 221 if ((int) sizeof(jint) < wordSize && !Bytes::is_Java_byte_ordering_different())
jrose@726 222 // big-endian LP64
jrose@726 223 return (jint*)(slot_addr + 1) - 1;
jrose@726 224 else
jrose@726 225 return (jint*) slot_addr;
jrose@726 226 }
jrose@726 227 static jlong long_in_slot(intptr_t* slot_addr) {
jrose@726 228 if (sizeof(intptr_t) >= sizeof(jlong)) {
jrose@726 229 return *(jlong*) slot_addr;
twisti@1426 230 } else {
jrose@726 231 return Bytes::get_native_u8((address)slot_addr);
jrose@726 232 }
jrose@726 233 }
jrose@726 234 static void set_long_in_slot(intptr_t* slot_addr, jlong value) {
jrose@726 235 if (sizeof(intptr_t) >= sizeof(jlong)) {
jrose@726 236 *(jlong*) slot_addr = value;
twisti@1426 237 } else {
jrose@726 238 Bytes::put_native_u8((address)slot_addr, value);
jrose@726 239 }
jrose@726 240 }
jrose@726 241 static void get_jvalue_in_slot(intptr_t* slot_addr, BasicType type, jvalue* value) {
jrose@726 242 switch (type) {
jrose@726 243 case T_BOOLEAN: value->z = *int_addr_in_slot(slot_addr); break;
jrose@726 244 case T_CHAR: value->c = *int_addr_in_slot(slot_addr); break;
jrose@726 245 case T_BYTE: value->b = *int_addr_in_slot(slot_addr); break;
jrose@726 246 case T_SHORT: value->s = *int_addr_in_slot(slot_addr); break;
jrose@726 247 case T_INT: value->i = *int_addr_in_slot(slot_addr); break;
jrose@726 248 case T_LONG: value->j = long_in_slot(slot_addr); break;
jrose@726 249 case T_FLOAT: value->f = *(jfloat*)int_addr_in_slot(slot_addr); break;
jrose@726 250 case T_DOUBLE: value->d = jdouble_cast(long_in_slot(slot_addr)); break;
jrose@726 251 case T_OBJECT: value->l = (jobject)*oop_addr_in_slot(slot_addr); break;
jrose@726 252 default: ShouldNotReachHere();
jrose@726 253 }
jrose@726 254 }
jrose@726 255 static void set_jvalue_in_slot(intptr_t* slot_addr, BasicType type, jvalue* value) {
jrose@726 256 switch (type) {
jrose@726 257 case T_BOOLEAN: *int_addr_in_slot(slot_addr) = (value->z != 0); break;
jrose@726 258 case T_CHAR: *int_addr_in_slot(slot_addr) = value->c; break;
jrose@726 259 case T_BYTE: *int_addr_in_slot(slot_addr) = value->b; break;
jrose@726 260 case T_SHORT: *int_addr_in_slot(slot_addr) = value->s; break;
jrose@726 261 case T_INT: *int_addr_in_slot(slot_addr) = value->i; break;
jrose@726 262 case T_LONG: set_long_in_slot(slot_addr, value->j); break;
jrose@726 263 case T_FLOAT: *(jfloat*)int_addr_in_slot(slot_addr) = value->f; break;
jrose@726 264 case T_DOUBLE: set_long_in_slot(slot_addr, jlong_cast(value->d)); break;
jrose@726 265 case T_OBJECT: *oop_addr_in_slot(slot_addr) = (oop) value->l; break;
jrose@726 266 default: ShouldNotReachHere();
jrose@726 267 }
jrose@726 268 }
duke@0 269 };
duke@0 270
duke@0 271 //------------------------------------------------------------------------------------------------------------------------
duke@0 272 // The interpreter generator.
duke@0 273
duke@0 274 class Template;
duke@0 275 class AbstractInterpreterGenerator: public StackObj {
duke@0 276 protected:
duke@0 277 InterpreterMacroAssembler* _masm;
duke@0 278
duke@0 279 // shared code sequences
duke@0 280 // Converter for native abi result to tosca result
duke@0 281 address generate_result_handler_for(BasicType type);
duke@0 282 address generate_slow_signature_handler();
duke@0 283
duke@0 284 // entry point generator
duke@0 285 address generate_method_entry(AbstractInterpreter::MethodKind kind);
duke@0 286
duke@0 287 void bang_stack_shadow_pages(bool native_call);
duke@0 288
duke@0 289 void generate_all();
duke@0 290
duke@0 291 public:
duke@0 292 AbstractInterpreterGenerator(StubQueue* _code);
duke@0 293 };
stefank@1879 294
stefank@1879 295 #endif // SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP