Tue, 24 Dec 2013 11:48:39 -0800
8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
Summary: Copyright year updated for files modified during 2013
Reviewed-by: twisti, iveresov
duke@435 | 1 | /* |
drchase@5353 | 2 | * Copyright (c) 1997, 2013, 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@4299 | 30 | #include "runtime/thread.inline.hpp" |
stefank@2314 | 31 | #include "runtime/vmThread.hpp" |
stefank@2314 | 32 | #include "utilities/top.hpp" |
roland@5987 | 33 | #ifdef TARGET_ARCH_x86 |
roland@5987 | 34 | # include "interp_masm_x86.hpp" |
stefank@2314 | 35 | #endif |
stefank@2314 | 36 | #ifdef TARGET_ARCH_MODEL_sparc |
stefank@2314 | 37 | # include "interp_masm_sparc.hpp" |
stefank@2314 | 38 | #endif |
stefank@2314 | 39 | #ifdef TARGET_ARCH_MODEL_zero |
stefank@2314 | 40 | # include "interp_masm_zero.hpp" |
stefank@2314 | 41 | #endif |
bobv@2508 | 42 | #ifdef TARGET_ARCH_MODEL_arm |
bobv@2508 | 43 | # include "interp_masm_arm.hpp" |
bobv@2508 | 44 | #endif |
bobv@2508 | 45 | #ifdef TARGET_ARCH_MODEL_ppc |
bobv@2508 | 46 | # include "interp_masm_ppc.hpp" |
bobv@2508 | 47 | #endif |
stefank@2314 | 48 | |
twisti@1040 | 49 | // This file contains the platform-independent parts |
duke@435 | 50 | // of the abstract interpreter and the abstract interpreter generator. |
duke@435 | 51 | |
duke@435 | 52 | // Organization of the interpreter(s). There exists two different interpreters in hotpot |
duke@435 | 53 | // an assembly language version (aka template interpreter) and a high level language version |
duke@435 | 54 | // (aka c++ interpreter). Th division of labor is as follows: |
duke@435 | 55 | |
duke@435 | 56 | // Template Interpreter C++ Interpreter Functionality |
duke@435 | 57 | // |
duke@435 | 58 | // templateTable* bytecodeInterpreter* actual interpretation of bytecodes |
duke@435 | 59 | // |
duke@435 | 60 | // templateInterpreter* cppInterpreter* generation of assembly code that creates |
duke@435 | 61 | // and manages interpreter runtime frames. |
duke@435 | 62 | // Also code for populating interpreter |
duke@435 | 63 | // frames created during deoptimization. |
duke@435 | 64 | // |
duke@435 | 65 | // For both template and c++ interpreter. There are common files for aspects of the interpreter |
duke@435 | 66 | // that are generic to both interpreters. This is the layout: |
duke@435 | 67 | // |
duke@435 | 68 | // abstractInterpreter.hpp: generic description of the interpreter. |
duke@435 | 69 | // interpreter*: generic frame creation and handling. |
duke@435 | 70 | // |
duke@435 | 71 | |
duke@435 | 72 | //------------------------------------------------------------------------------------------------------------------------ |
duke@435 | 73 | // The C++ interface to the bytecode interpreter(s). |
duke@435 | 74 | |
duke@435 | 75 | class AbstractInterpreter: AllStatic { |
duke@435 | 76 | friend class VMStructs; |
duke@435 | 77 | friend class Interpreter; |
duke@435 | 78 | friend class CppInterpreterGenerator; |
duke@435 | 79 | public: |
duke@435 | 80 | enum MethodKind { |
duke@435 | 81 | zerolocals, // method needs locals initialization |
duke@435 | 82 | zerolocals_synchronized, // method needs locals initialization & is synchronized |
duke@435 | 83 | native, // native method |
duke@435 | 84 | native_synchronized, // native method & is synchronized |
duke@435 | 85 | empty, // empty method (code: _return) |
duke@435 | 86 | accessor, // accessor method (code: _aload_0, _getfield, _(a|i)return) |
duke@435 | 87 | abstract, // abstract method (throws an AbstractMethodException) |
twisti@3969 | 88 | method_handle_invoke_FIRST, // java.lang.invoke.MethodHandles::invokeExact, etc. |
twisti@3969 | 89 | method_handle_invoke_LAST = (method_handle_invoke_FIRST |
twisti@3969 | 90 | + (vmIntrinsics::LAST_MH_SIG_POLY |
twisti@3969 | 91 | - vmIntrinsics::FIRST_MH_SIG_POLY)), |
duke@435 | 92 | java_lang_math_sin, // implementation of java.lang.Math.sin (x) |
duke@435 | 93 | java_lang_math_cos, // implementation of java.lang.Math.cos (x) |
duke@435 | 94 | java_lang_math_tan, // implementation of java.lang.Math.tan (x) |
duke@435 | 95 | java_lang_math_abs, // implementation of java.lang.Math.abs (x) |
duke@435 | 96 | java_lang_math_sqrt, // implementation of java.lang.Math.sqrt (x) |
duke@435 | 97 | java_lang_math_log, // implementation of java.lang.Math.log (x) |
duke@435 | 98 | java_lang_math_log10, // implementation of java.lang.Math.log10 (x) |
roland@3787 | 99 | java_lang_math_pow, // implementation of java.lang.Math.pow (x,y) |
roland@3787 | 100 | java_lang_math_exp, // implementation of java.lang.Math.exp (x) |
johnc@2781 | 101 | java_lang_ref_reference_get, // implementation of java.lang.ref.Reference.get() |
drchase@5353 | 102 | java_util_zip_CRC32_update, // implementation of java.util.zip.CRC32.update() |
drchase@5353 | 103 | java_util_zip_CRC32_updateBytes, // implementation of java.util.zip.CRC32.updateBytes() |
drchase@5353 | 104 | java_util_zip_CRC32_updateByteBuffer, // implementation of java.util.zip.CRC32.updateByteBuffer() |
duke@435 | 105 | number_of_method_entries, |
duke@435 | 106 | invalid = -1 |
duke@435 | 107 | }; |
duke@435 | 108 | |
twisti@3969 | 109 | // Conversion from the part of the above enum to vmIntrinsics::_invokeExact, etc. |
twisti@3969 | 110 | static vmIntrinsics::ID method_handle_intrinsic(MethodKind kind) { |
twisti@3969 | 111 | if (kind >= method_handle_invoke_FIRST && kind <= method_handle_invoke_LAST) |
twisti@3969 | 112 | return (vmIntrinsics::ID)( vmIntrinsics::FIRST_MH_SIG_POLY + (kind - method_handle_invoke_FIRST) ); |
twisti@3969 | 113 | else |
twisti@3969 | 114 | return vmIntrinsics::_none; |
twisti@3969 | 115 | } |
twisti@3969 | 116 | |
duke@435 | 117 | enum SomeConstants { |
duke@435 | 118 | number_of_result_handlers = 10 // number of result handlers for native calls |
duke@435 | 119 | }; |
duke@435 | 120 | |
duke@435 | 121 | protected: |
duke@435 | 122 | static StubQueue* _code; // the interpreter code (codelets) |
duke@435 | 123 | |
duke@435 | 124 | static bool _notice_safepoints; // true if safepoints are activated |
duke@435 | 125 | |
duke@435 | 126 | static address _native_entry_begin; // Region for native entry code |
duke@435 | 127 | static address _native_entry_end; |
duke@435 | 128 | |
duke@435 | 129 | // method entry points |
duke@435 | 130 | static address _entry_table[number_of_method_entries]; // entry points for a given method |
duke@435 | 131 | static address _native_abi_to_tosca[number_of_result_handlers]; // for native method result handlers |
duke@435 | 132 | static address _slow_signature_handler; // the native method generic (slow) signature handler |
duke@435 | 133 | |
duke@435 | 134 | static address _rethrow_exception_entry; // rethrows an activation in previous frame |
duke@435 | 135 | |
duke@435 | 136 | friend class AbstractInterpreterGenerator; |
duke@435 | 137 | friend class InterpreterGenerator; |
duke@435 | 138 | friend class InterpreterMacroAssembler; |
duke@435 | 139 | |
duke@435 | 140 | public: |
duke@435 | 141 | // Initialization/debugging |
duke@435 | 142 | static void initialize(); |
duke@435 | 143 | static StubQueue* code() { return _code; } |
duke@435 | 144 | |
duke@435 | 145 | |
duke@435 | 146 | // Method activation |
duke@435 | 147 | static MethodKind method_kind(methodHandle m); |
duke@435 | 148 | static address entry_for_kind(MethodKind k) { assert(0 <= k && k < number_of_method_entries, "illegal kind"); return _entry_table[k]; } |
johnc@2781 | 149 | static address entry_for_method(methodHandle m) { return entry_for_kind(method_kind(m)); } |
duke@435 | 150 | |
twisti@3969 | 151 | // used for bootstrapping method handles: |
twisti@3969 | 152 | static void set_entry_for_kind(MethodKind k, address e); |
twisti@3969 | 153 | |
duke@435 | 154 | static void print_method_kind(MethodKind kind) PRODUCT_RETURN; |
duke@435 | 155 | |
never@1609 | 156 | static bool can_be_compiled(methodHandle m); |
never@1609 | 157 | |
duke@435 | 158 | // Runtime support |
duke@435 | 159 | |
duke@435 | 160 | // length = invoke bytecode length (to advance to next bytecode) |
twisti@6039 | 161 | static address deopt_entry(TosState state, int length) { ShouldNotReachHere(); return NULL; } |
twisti@6039 | 162 | static address return_entry(TosState state, int length, Bytecodes::Code code) { ShouldNotReachHere(); return NULL; } |
duke@435 | 163 | |
duke@435 | 164 | static address rethrow_exception_entry() { return _rethrow_exception_entry; } |
duke@435 | 165 | |
duke@435 | 166 | // Activation size in words for a method that is just being called. |
duke@435 | 167 | // Parameters haven't been pushed so count them too. |
coleenp@4037 | 168 | static int size_top_interpreter_activation(Method* method); |
duke@435 | 169 | |
duke@435 | 170 | // Deoptimization support |
cfang@1335 | 171 | // Compute the entry address for continuation after |
coleenp@4037 | 172 | static address deopt_continue_after_entry(Method* method, |
cfang@1335 | 173 | address bcp, |
cfang@1335 | 174 | int callee_parameters, |
cfang@1335 | 175 | bool is_top_frame); |
cfang@1335 | 176 | // Compute the entry address for reexecution |
coleenp@4037 | 177 | static address deopt_reexecute_entry(Method* method, address bcp); |
cfang@1335 | 178 | // Deoptimization should reexecute this bytecode |
cfang@1335 | 179 | static bool bytecode_should_reexecute(Bytecodes::Code code); |
duke@435 | 180 | |
duke@435 | 181 | // share implementation of size_activation and layout_activation: |
coleenp@4037 | 182 | static int size_activation(Method* method, |
duke@435 | 183 | int temps, |
duke@435 | 184 | int popframe_args, |
duke@435 | 185 | int monitors, |
never@2901 | 186 | int caller_actual_parameters, |
duke@435 | 187 | int callee_params, |
duke@435 | 188 | int callee_locals, |
roland@4727 | 189 | bool is_top_frame, |
roland@4727 | 190 | bool is_bottom_frame) { |
never@2901 | 191 | return layout_activation(method, |
never@2901 | 192 | temps, |
never@2901 | 193 | popframe_args, |
never@2901 | 194 | monitors, |
never@2901 | 195 | caller_actual_parameters, |
never@2901 | 196 | callee_params, |
never@2901 | 197 | callee_locals, |
never@2901 | 198 | (frame*)NULL, |
never@2901 | 199 | (frame*)NULL, |
roland@4727 | 200 | is_top_frame, |
roland@4727 | 201 | is_bottom_frame); |
never@2901 | 202 | } |
duke@435 | 203 | |
coleenp@4037 | 204 | static int layout_activation(Method* method, |
never@2901 | 205 | int temps, |
never@2901 | 206 | int popframe_args, |
never@2901 | 207 | int monitors, |
never@2901 | 208 | int caller_actual_parameters, |
never@2901 | 209 | int callee_params, |
never@2901 | 210 | int callee_locals, |
never@2901 | 211 | frame* caller, |
never@2901 | 212 | frame* interpreter_frame, |
roland@4727 | 213 | bool is_top_frame, |
roland@4727 | 214 | bool is_bottom_frame); |
duke@435 | 215 | |
duke@435 | 216 | // Runtime support |
duke@435 | 217 | static bool is_not_reached( methodHandle method, int bci); |
duke@435 | 218 | // Safepoint support |
duke@435 | 219 | static void notice_safepoints() { ShouldNotReachHere(); } // stops the thread when reaching a safepoint |
duke@435 | 220 | static void ignore_safepoints() { ShouldNotReachHere(); } // ignores safepoints |
duke@435 | 221 | |
duke@435 | 222 | // Support for native calls |
duke@435 | 223 | static address slow_signature_handler() { return _slow_signature_handler; } |
duke@435 | 224 | static address result_handler(BasicType type) { return _native_abi_to_tosca[BasicType_as_index(type)]; } |
duke@435 | 225 | static int BasicType_as_index(BasicType type); // computes index into result_handler_by_index table |
duke@435 | 226 | static bool in_native_entry(address pc) { return _native_entry_begin <= pc && pc < _native_entry_end; } |
duke@435 | 227 | // Debugging/printing |
duke@435 | 228 | static void print(); // prints the interpreter code |
duke@435 | 229 | |
duke@435 | 230 | public: |
twisti@1861 | 231 | // Interpreter helpers |
twisti@1861 | 232 | const static int stackElementWords = 1; |
twisti@1861 | 233 | const static int stackElementSize = stackElementWords * wordSize; |
twisti@1861 | 234 | const static int logStackElementSize = LogBytesPerWord; |
duke@435 | 235 | |
duke@435 | 236 | // Local values relative to locals[n] |
duke@435 | 237 | static int local_offset_in_bytes(int n) { |
twisti@1861 | 238 | return ((frame::interpreter_frame_expression_stack_direction() * n) * stackElementSize); |
duke@435 | 239 | } |
duke@435 | 240 | |
jrose@1161 | 241 | // access to stacked values according to type: |
jrose@1161 | 242 | static oop* oop_addr_in_slot(intptr_t* slot_addr) { |
jrose@1161 | 243 | return (oop*) slot_addr; |
jrose@1161 | 244 | } |
jrose@1161 | 245 | static jint* int_addr_in_slot(intptr_t* slot_addr) { |
jrose@1161 | 246 | if ((int) sizeof(jint) < wordSize && !Bytes::is_Java_byte_ordering_different()) |
jrose@1161 | 247 | // big-endian LP64 |
jrose@1161 | 248 | return (jint*)(slot_addr + 1) - 1; |
jrose@1161 | 249 | else |
jrose@1161 | 250 | return (jint*) slot_addr; |
jrose@1161 | 251 | } |
jrose@1161 | 252 | static jlong long_in_slot(intptr_t* slot_addr) { |
jrose@1161 | 253 | if (sizeof(intptr_t) >= sizeof(jlong)) { |
jrose@1161 | 254 | return *(jlong*) slot_addr; |
twisti@1861 | 255 | } else { |
jrose@1161 | 256 | return Bytes::get_native_u8((address)slot_addr); |
jrose@1161 | 257 | } |
jrose@1161 | 258 | } |
jrose@1161 | 259 | static void set_long_in_slot(intptr_t* slot_addr, jlong value) { |
jrose@1161 | 260 | if (sizeof(intptr_t) >= sizeof(jlong)) { |
jrose@1161 | 261 | *(jlong*) slot_addr = value; |
twisti@1861 | 262 | } else { |
jrose@1161 | 263 | Bytes::put_native_u8((address)slot_addr, value); |
jrose@1161 | 264 | } |
jrose@1161 | 265 | } |
jrose@1161 | 266 | static void get_jvalue_in_slot(intptr_t* slot_addr, BasicType type, jvalue* value) { |
jrose@1161 | 267 | switch (type) { |
jrose@1161 | 268 | case T_BOOLEAN: value->z = *int_addr_in_slot(slot_addr); break; |
jrose@1161 | 269 | case T_CHAR: value->c = *int_addr_in_slot(slot_addr); break; |
jrose@1161 | 270 | case T_BYTE: value->b = *int_addr_in_slot(slot_addr); break; |
jrose@1161 | 271 | case T_SHORT: value->s = *int_addr_in_slot(slot_addr); break; |
jrose@1161 | 272 | case T_INT: value->i = *int_addr_in_slot(slot_addr); break; |
jrose@1161 | 273 | case T_LONG: value->j = long_in_slot(slot_addr); break; |
jrose@1161 | 274 | case T_FLOAT: value->f = *(jfloat*)int_addr_in_slot(slot_addr); break; |
jrose@1161 | 275 | case T_DOUBLE: value->d = jdouble_cast(long_in_slot(slot_addr)); break; |
jrose@1161 | 276 | case T_OBJECT: value->l = (jobject)*oop_addr_in_slot(slot_addr); break; |
jrose@1161 | 277 | default: ShouldNotReachHere(); |
jrose@1161 | 278 | } |
jrose@1161 | 279 | } |
jrose@1161 | 280 | static void set_jvalue_in_slot(intptr_t* slot_addr, BasicType type, jvalue* value) { |
jrose@1161 | 281 | switch (type) { |
jrose@1161 | 282 | case T_BOOLEAN: *int_addr_in_slot(slot_addr) = (value->z != 0); break; |
jrose@1161 | 283 | case T_CHAR: *int_addr_in_slot(slot_addr) = value->c; break; |
jrose@1161 | 284 | case T_BYTE: *int_addr_in_slot(slot_addr) = value->b; break; |
jrose@1161 | 285 | case T_SHORT: *int_addr_in_slot(slot_addr) = value->s; break; |
jrose@1161 | 286 | case T_INT: *int_addr_in_slot(slot_addr) = value->i; break; |
jrose@1161 | 287 | case T_LONG: set_long_in_slot(slot_addr, value->j); break; |
jrose@1161 | 288 | case T_FLOAT: *(jfloat*)int_addr_in_slot(slot_addr) = value->f; break; |
jrose@1161 | 289 | case T_DOUBLE: set_long_in_slot(slot_addr, jlong_cast(value->d)); break; |
jrose@1161 | 290 | case T_OBJECT: *oop_addr_in_slot(slot_addr) = (oop) value->l; break; |
jrose@1161 | 291 | default: ShouldNotReachHere(); |
jrose@1161 | 292 | } |
jrose@1161 | 293 | } |
duke@435 | 294 | }; |
duke@435 | 295 | |
duke@435 | 296 | //------------------------------------------------------------------------------------------------------------------------ |
duke@435 | 297 | // The interpreter generator. |
duke@435 | 298 | |
duke@435 | 299 | class Template; |
duke@435 | 300 | class AbstractInterpreterGenerator: public StackObj { |
duke@435 | 301 | protected: |
duke@435 | 302 | InterpreterMacroAssembler* _masm; |
duke@435 | 303 | |
duke@435 | 304 | // shared code sequences |
duke@435 | 305 | // Converter for native abi result to tosca result |
duke@435 | 306 | address generate_result_handler_for(BasicType type); |
duke@435 | 307 | address generate_slow_signature_handler(); |
duke@435 | 308 | |
duke@435 | 309 | // entry point generator |
duke@435 | 310 | address generate_method_entry(AbstractInterpreter::MethodKind kind); |
duke@435 | 311 | |
duke@435 | 312 | void bang_stack_shadow_pages(bool native_call); |
duke@435 | 313 | |
duke@435 | 314 | void generate_all(); |
twisti@4237 | 315 | void initialize_method_handle_entries(); |
duke@435 | 316 | |
duke@435 | 317 | public: |
duke@435 | 318 | AbstractInterpreterGenerator(StubQueue* _code); |
duke@435 | 319 | }; |
stefank@2314 | 320 | |
stefank@2314 | 321 | #endif // SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP |