Mercurial > hg > graal-compiler
annotate src/cpu/x86/vm/interpreter_x86_32.cpp @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | 2338d41fbd81 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 #include "incls/_precompiled.incl" | |
| 26 #include "incls/_interpreter_x86_32.cpp.incl" | |
| 27 | |
| 28 #define __ _masm-> | |
| 29 | |
| 30 // Initialize the sentinel used to distinguish an interpreter return address. | |
| 31 const int Interpreter::return_sentinel = 0xfeedbeed; | |
| 32 | |
| 33 //------------------------------------------------------------------------------------------------------------------------ | |
| 34 | |
| 35 address AbstractInterpreterGenerator::generate_slow_signature_handler() { | |
| 36 address entry = __ pc(); | |
| 37 // rbx,: method | |
| 38 // rcx: temporary | |
| 39 // rdi: pointer to locals | |
| 40 // rsp: end of copied parameters area | |
| 304 | 41 __ mov(rcx, rsp); |
| 0 | 42 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::slow_signature_handler), rbx, rdi, rcx); |
| 43 __ ret(0); | |
| 44 return entry; | |
| 45 } | |
| 46 | |
| 47 | |
| 48 // | |
| 49 // Various method entries (that c++ and asm interpreter agree upon) | |
| 50 //------------------------------------------------------------------------------------------------------------------------ | |
| 51 // | |
| 52 // | |
| 53 | |
| 54 // Empty method, generate a very fast return. | |
| 55 | |
| 56 address InterpreterGenerator::generate_empty_entry(void) { | |
| 57 | |
| 58 // rbx,: methodOop | |
| 59 // rcx: receiver (unused) | |
| 60 // rsi: previous interpreter state (C++ interpreter) must preserve | |
| 61 // rsi: sender sp must set sp to this value on return | |
| 62 | |
| 63 if (!UseFastEmptyMethods) return NULL; | |
| 64 | |
| 65 address entry_point = __ pc(); | |
| 66 | |
| 67 // If we need a safepoint check, generate full interpreter entry. | |
| 68 Label slow_path; | |
| 69 ExternalAddress state(SafepointSynchronize::address_of_state()); | |
| 70 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
| 71 SafepointSynchronize::_not_synchronized); | |
| 72 __ jcc(Assembler::notEqual, slow_path); | |
| 73 | |
| 74 // do nothing for empty methods (do not even increment invocation counter) | |
| 75 // Code: _return | |
| 76 // _return | |
| 77 // return w/o popping parameters | |
| 304 | 78 __ pop(rax); |
| 79 __ mov(rsp, rsi); | |
| 0 | 80 __ jmp(rax); |
| 81 | |
| 82 __ bind(slow_path); | |
| 83 (void) generate_normal_entry(false); | |
| 84 return entry_point; | |
| 85 } | |
| 86 | |
| 87 address InterpreterGenerator::generate_math_entry(AbstractInterpreter::MethodKind kind) { | |
| 88 | |
| 89 // rbx,: methodOop | |
| 90 // rcx: scratrch | |
| 91 // rsi: sender sp | |
| 92 | |
| 93 if (!InlineIntrinsics) return NULL; // Generate a vanilla entry | |
| 94 | |
| 95 address entry_point = __ pc(); | |
| 96 | |
| 97 // These don't need a safepoint check because they aren't virtually | |
| 98 // callable. We won't enter these intrinsics from compiled code. | |
| 99 // If in the future we added an intrinsic which was virtually callable | |
| 100 // we'd have to worry about how to safepoint so that this code is used. | |
| 101 | |
| 102 // mathematical functions inlined by compiler | |
| 103 // (interpreter must provide identical implementation | |
| 104 // in order to avoid monotonicity bugs when switching | |
| 105 // from interpreter to compiler in the middle of some | |
| 106 // computation) | |
| 107 // | |
| 108 // stack: [ ret adr ] <-- rsp | |
| 109 // [ lo(arg) ] | |
| 110 // [ hi(arg) ] | |
| 111 // | |
| 112 | |
| 113 // Note: For JDK 1.2 StrictMath doesn't exist and Math.sin/cos/sqrt are | |
| 114 // native methods. Interpreter::method_kind(...) does a check for | |
| 115 // native methods first before checking for intrinsic methods and | |
| 116 // thus will never select this entry point. Make sure it is not | |
| 117 // called accidentally since the SharedRuntime entry points will | |
| 118 // not work for JDK 1.2. | |
| 119 // | |
| 120 // We no longer need to check for JDK 1.2 since it's EOL'ed. | |
| 121 // The following check existed in pre 1.6 implementation, | |
| 122 // if (Universe::is_jdk12x_version()) { | |
| 123 // __ should_not_reach_here(); | |
| 124 // } | |
| 125 // Universe::is_jdk12x_version() always returns false since | |
| 126 // the JDK version is not yet determined when this method is called. | |
| 127 // This method is called during interpreter_init() whereas | |
| 128 // JDK version is only determined when universe2_init() is called. | |
| 129 | |
| 130 // Note: For JDK 1.3 StrictMath exists and Math.sin/cos/sqrt are | |
| 131 // java methods. Interpreter::method_kind(...) will select | |
| 132 // this entry point for the corresponding methods in JDK 1.3. | |
| 133 // get argument | |
| 1506 | 134 __ fld_d(Address(rsp, 1*wordSize)); |
| 0 | 135 switch (kind) { |
| 136 case Interpreter::java_lang_math_sin : | |
| 137 __ trigfunc('s'); | |
| 138 break; | |
| 139 case Interpreter::java_lang_math_cos : | |
| 140 __ trigfunc('c'); | |
| 141 break; | |
| 142 case Interpreter::java_lang_math_tan : | |
| 143 __ trigfunc('t'); | |
| 144 break; | |
| 145 case Interpreter::java_lang_math_sqrt: | |
| 146 __ fsqrt(); | |
| 147 break; | |
| 148 case Interpreter::java_lang_math_abs: | |
| 149 __ fabs(); | |
| 150 break; | |
| 151 case Interpreter::java_lang_math_log: | |
| 152 __ flog(); | |
| 153 // Store to stack to convert 80bit precision back to 64bits | |
| 154 __ push_fTOS(); | |
| 155 __ pop_fTOS(); | |
| 156 break; | |
| 157 case Interpreter::java_lang_math_log10: | |
| 158 __ flog10(); | |
| 159 // Store to stack to convert 80bit precision back to 64bits | |
| 160 __ push_fTOS(); | |
| 161 __ pop_fTOS(); | |
| 162 break; | |
| 163 default : | |
| 164 ShouldNotReachHere(); | |
| 165 } | |
| 166 | |
| 167 // return double result in xmm0 for interpreter and compilers. | |
| 168 if (UseSSE >= 2) { | |
| 304 | 169 __ subptr(rsp, 2*wordSize); |
| 0 | 170 __ fstp_d(Address(rsp, 0)); |
| 171 __ movdbl(xmm0, Address(rsp, 0)); | |
| 304 | 172 __ addptr(rsp, 2*wordSize); |
| 0 | 173 } |
| 174 | |
| 175 // done, result in FPU ST(0) or XMM0 | |
| 304 | 176 __ pop(rdi); // get return address |
| 177 __ mov(rsp, rsi); // set sp to sender sp | |
| 0 | 178 __ jmp(rdi); |
| 179 | |
| 180 return entry_point; | |
| 181 } | |
| 182 | |
| 183 | |
| 184 // Abstract method entry | |
| 185 // Attempt to execute abstract method. Throw exception | |
| 186 address InterpreterGenerator::generate_abstract_entry(void) { | |
| 187 | |
| 188 // rbx,: methodOop | |
| 189 // rcx: receiver (unused) | |
| 190 // rsi: previous interpreter state (C++ interpreter) must preserve | |
| 191 | |
| 192 // rsi: sender SP | |
| 193 | |
| 194 address entry_point = __ pc(); | |
| 195 | |
| 196 // abstract method entry | |
| 197 | |
| 710 | 198 // pop return address, reset last_sp to NULL |
| 199 __ empty_expression_stack(); | |
| 200 __ restore_bcp(); // rsi must be correct for exception handler (was destroyed) | |
| 201 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) | |
| 202 | |
| 0 | 203 // throw exception |
| 204 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); | |
| 205 // the call_VM checks for exception, so we should never return here. | |
| 206 __ should_not_reach_here(); | |
| 207 | |
| 208 return entry_point; | |
| 209 } | |
| 210 | |
| 710 | 211 |
| 212 // Method handle invoker | |
| 213 // Dispatch a method of the form java.dyn.MethodHandles::invoke(...) | |
| 214 address InterpreterGenerator::generate_method_handle_entry(void) { | |
| 215 if (!EnableMethodHandles) { | |
| 216 return generate_abstract_entry(); | |
| 217 } | |
| 218 | |
| 219 address entry_point = MethodHandles::generate_method_handle_interpreter_entry(_masm); | |
| 220 | |
| 221 return entry_point; | |
| 222 } | |
| 223 | |
| 224 | |
| 0 | 225 // This method tells the deoptimizer how big an interpreted frame must be: |
| 226 int AbstractInterpreter::size_activation(methodOop method, | |
| 227 int tempcount, | |
| 228 int popframe_extra_args, | |
| 229 int moncount, | |
| 230 int callee_param_count, | |
| 231 int callee_locals, | |
| 232 bool is_top_frame) { | |
| 233 return layout_activation(method, | |
| 234 tempcount, | |
| 235 popframe_extra_args, | |
| 236 moncount, | |
| 237 callee_param_count, | |
| 238 callee_locals, | |
| 239 (frame*) NULL, | |
| 240 (frame*) NULL, | |
| 241 is_top_frame); | |
| 242 } | |
| 243 | |
| 244 void Deoptimization::unwind_callee_save_values(frame* f, vframeArray* vframe_array) { | |
| 245 | |
| 246 // This code is sort of the equivalent of C2IAdapter::setup_stack_frame back in | |
| 247 // the days we had adapter frames. When we deoptimize a situation where a | |
| 248 // compiled caller calls a compiled caller will have registers it expects | |
| 249 // to survive the call to the callee. If we deoptimize the callee the only | |
| 250 // way we can restore these registers is to have the oldest interpreter | |
| 251 // frame that we create restore these values. That is what this routine | |
| 252 // will accomplish. | |
| 253 | |
| 254 // At the moment we have modified c2 to not have any callee save registers | |
| 255 // so this problem does not exist and this routine is just a place holder. | |
| 256 | |
| 257 assert(f->is_interpreted_frame(), "must be interpreted"); | |
| 258 } |