Mercurial > hg > graal-jvmci-8
annotate src/cpu/sparc/vm/templateInterpreter_sparc.cpp @ 23974:f13e777eb255
Merge with jdk8u111-b14
| author | Tom Rodriguez <tom.rodriguez@oracle.com> |
|---|---|
| date | Wed, 16 Nov 2016 12:32:54 -0800 |
| parents | a5a2ac8dfaba |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 23614 | 2 * Copyright (c) 1997, 2016, 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 | |
| 1972 | 25 #include "precompiled.hpp" |
|
7204
f0c2369fda5a
8003250: SPARC: move MacroAssembler into separate file
twisti
parents:
6725
diff
changeset
|
26 #include "asm/macroAssembler.hpp" |
| 1972 | 27 #include "interpreter/bytecodeHistogram.hpp" |
| 28 #include "interpreter/interpreter.hpp" | |
| 29 #include "interpreter/interpreterGenerator.hpp" | |
| 30 #include "interpreter/interpreterRuntime.hpp" | |
| 31 #include "interpreter/templateTable.hpp" | |
| 32 #include "oops/arrayOop.hpp" | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
33 #include "oops/methodData.hpp" |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
34 #include "oops/method.hpp" |
| 1972 | 35 #include "oops/oop.inline.hpp" |
| 36 #include "prims/jvmtiExport.hpp" | |
| 37 #include "prims/jvmtiThreadState.hpp" | |
| 38 #include "runtime/arguments.hpp" | |
| 39 #include "runtime/deoptimization.hpp" | |
| 40 #include "runtime/frame.inline.hpp" | |
| 41 #include "runtime/sharedRuntime.hpp" | |
| 42 #include "runtime/stubRoutines.hpp" | |
| 43 #include "runtime/synchronizer.hpp" | |
| 44 #include "runtime/timer.hpp" | |
| 45 #include "runtime/vframeArray.hpp" | |
| 46 #include "utilities/debug.hpp" | |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7476
diff
changeset
|
47 #include "utilities/macros.hpp" |
| 0 | 48 |
| 49 #ifndef CC_INTERP | |
| 50 #ifndef FAST_DISPATCH | |
| 51 #define FAST_DISPATCH 1 | |
| 52 #endif | |
| 53 #undef FAST_DISPATCH | |
| 54 | |
| 55 | |
| 56 // Generation of Interpreter | |
| 57 // | |
| 58 // The InterpreterGenerator generates the interpreter into Interpreter::_code. | |
| 59 | |
| 60 | |
| 61 #define __ _masm-> | |
| 62 | |
| 63 | |
| 64 //---------------------------------------------------------------------------------------------------- | |
| 65 | |
| 66 | |
| 67 void InterpreterGenerator::save_native_result(void) { | |
| 68 // result potentially in O0/O1: save it across calls | |
| 69 const Address& l_tmp = InterpreterMacroAssembler::l_tmp; | |
| 70 | |
| 71 // result potentially in F0/F1: save it across calls | |
| 72 const Address& d_tmp = InterpreterMacroAssembler::d_tmp; | |
| 73 | |
| 74 // save and restore any potential method result value around the unlocking operation | |
| 75 __ stf(FloatRegisterImpl::D, F0, d_tmp); | |
| 76 #ifdef _LP64 | |
| 77 __ stx(O0, l_tmp); | |
| 78 #else | |
| 79 __ std(O0, l_tmp); | |
| 80 #endif | |
| 81 } | |
| 82 | |
| 83 void InterpreterGenerator::restore_native_result(void) { | |
| 84 const Address& l_tmp = InterpreterMacroAssembler::l_tmp; | |
| 85 const Address& d_tmp = InterpreterMacroAssembler::d_tmp; | |
| 86 | |
| 87 // Restore any method result value | |
| 88 __ ldf(FloatRegisterImpl::D, d_tmp, F0); | |
| 89 #ifdef _LP64 | |
| 90 __ ldx(l_tmp, O0); | |
| 91 #else | |
| 92 __ ldd(l_tmp, O0); | |
| 93 #endif | |
| 94 } | |
| 95 | |
| 96 address TemplateInterpreterGenerator::generate_exception_handler_common(const char* name, const char* message, bool pass_oop) { | |
| 97 assert(!pass_oop || message == NULL, "either oop or message but not both"); | |
| 98 address entry = __ pc(); | |
| 99 // expression stack must be empty before entering the VM if an exception happened | |
| 100 __ empty_expression_stack(); | |
| 101 // load exception object | |
| 102 __ set((intptr_t)name, G3_scratch); | |
| 103 if (pass_oop) { | |
| 104 __ call_VM(Oexception, CAST_FROM_FN_PTR(address, InterpreterRuntime::create_klass_exception), G3_scratch, Otos_i); | |
| 105 } else { | |
| 106 __ set((intptr_t)message, G4_scratch); | |
| 107 __ call_VM(Oexception, CAST_FROM_FN_PTR(address, InterpreterRuntime::create_exception), G3_scratch, G4_scratch); | |
| 108 } | |
| 109 // throw exception | |
| 110 assert(Interpreter::throw_exception_entry() != NULL, "generate it first"); | |
| 727 | 111 AddressLiteral thrower(Interpreter::throw_exception_entry()); |
| 112 __ jump_to(thrower, G3_scratch); | |
| 0 | 113 __ delayed()->nop(); |
| 114 return entry; | |
| 115 } | |
| 116 | |
| 117 address TemplateInterpreterGenerator::generate_ClassCastException_handler() { | |
| 118 address entry = __ pc(); | |
| 119 // expression stack must be empty before entering the VM if an exception | |
| 120 // happened | |
| 121 __ empty_expression_stack(); | |
| 122 // load exception object | |
| 123 __ call_VM(Oexception, | |
| 124 CAST_FROM_FN_PTR(address, | |
| 125 InterpreterRuntime::throw_ClassCastException), | |
| 126 Otos_i); | |
| 127 __ should_not_reach_here(); | |
| 128 return entry; | |
| 129 } | |
| 130 | |
| 131 | |
| 132 address TemplateInterpreterGenerator::generate_ArrayIndexOutOfBounds_handler(const char* name) { | |
| 133 address entry = __ pc(); | |
| 134 // expression stack must be empty before entering the VM if an exception happened | |
| 135 __ empty_expression_stack(); | |
| 136 // convention: expect aberrant index in register G3_scratch, then shuffle the | |
| 137 // index to G4_scratch for the VM call | |
| 138 __ mov(G3_scratch, G4_scratch); | |
| 139 __ set((intptr_t)name, G3_scratch); | |
| 140 __ call_VM(Oexception, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_ArrayIndexOutOfBoundsException), G3_scratch, G4_scratch); | |
| 141 __ should_not_reach_here(); | |
| 142 return entry; | |
| 143 } | |
| 144 | |
| 145 | |
| 146 address TemplateInterpreterGenerator::generate_StackOverflowError_handler() { | |
| 147 address entry = __ pc(); | |
| 148 // expression stack must be empty before entering the VM if an exception happened | |
| 149 __ empty_expression_stack(); | |
| 150 __ call_VM(Oexception, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_StackOverflowError)); | |
| 151 __ should_not_reach_here(); | |
| 152 return entry; | |
| 153 } | |
| 154 | |
| 155 | |
|
13010
bd3237e0e18d
8026328: Setting a breakpoint on invokedynamic crashes the JVM
twisti
parents:
12010
diff
changeset
|
156 address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step, size_t index_size) { |
|
bd3237e0e18d
8026328: Setting a breakpoint on invokedynamic crashes the JVM
twisti
parents:
12010
diff
changeset
|
157 address entry = __ pc(); |
| 1503 | 158 |
| 14260 | 159 if (state == atos) { |
| 160 __ profile_return_type(O0, G3_scratch, G1_scratch); | |
| 161 } | |
| 162 | |
| 0 | 163 #if !defined(_LP64) && defined(COMPILER2) |
| 164 // All return values are where we want them, except for Longs. C2 returns | |
| 165 // longs in G1 in the 32-bit build whereas the interpreter wants them in O0/O1. | |
| 166 // Since the interpreter will return longs in G1 and O0/O1 in the 32bit | |
| 167 // build even if we are returning from interpreted we just do a little | |
| 168 // stupid shuffing. | |
| 169 // Note: I tried to make c2 return longs in O0/O1 and G1 so we wouldn't have to | |
| 170 // do this here. Unfortunately if we did a rethrow we'd see an machepilog node | |
| 171 // first which would move g1 -> O0/O1 and destroy the exception we were throwing. | |
| 172 | |
|
13010
bd3237e0e18d
8026328: Setting a breakpoint on invokedynamic crashes the JVM
twisti
parents:
12010
diff
changeset
|
173 if (state == ltos) { |
| 1503 | 174 __ srl (G1, 0, O1); |
| 175 __ srlx(G1, 32, O0); | |
| 0 | 176 } |
| 1503 | 177 #endif // !_LP64 && COMPILER2 |
| 0 | 178 |
| 179 // The callee returns with the stack possibly adjusted by adapter transition | |
| 180 // We remove that possible adjustment here. | |
| 181 // All interpreter local registers are untouched. Any result is passed back | |
| 182 // in the O0/O1 or float registers. Before continuing, the arguments must be | |
| 183 // popped from the java expression stack; i.e., Lesp must be adjusted. | |
| 184 | |
| 185 __ mov(Llast_SP, SP); // Remove any adapter added stack space. | |
| 186 | |
| 187 const Register cache = G3_scratch; | |
|
13010
bd3237e0e18d
8026328: Setting a breakpoint on invokedynamic crashes the JVM
twisti
parents:
12010
diff
changeset
|
188 const Register index = G1_scratch; |
|
bd3237e0e18d
8026328: Setting a breakpoint on invokedynamic crashes the JVM
twisti
parents:
12010
diff
changeset
|
189 __ get_cache_and_index_at_bcp(cache, index, 1, index_size); |
|
bd3237e0e18d
8026328: Setting a breakpoint on invokedynamic crashes the JVM
twisti
parents:
12010
diff
changeset
|
190 |
|
bd3237e0e18d
8026328: Setting a breakpoint on invokedynamic crashes the JVM
twisti
parents:
12010
diff
changeset
|
191 const Register flags = cache; |
|
bd3237e0e18d
8026328: Setting a breakpoint on invokedynamic crashes the JVM
twisti
parents:
12010
diff
changeset
|
192 __ ld_ptr(cache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset(), flags); |
|
bd3237e0e18d
8026328: Setting a breakpoint on invokedynamic crashes the JVM
twisti
parents:
12010
diff
changeset
|
193 const Register parameter_size = flags; |
|
bd3237e0e18d
8026328: Setting a breakpoint on invokedynamic crashes the JVM
twisti
parents:
12010
diff
changeset
|
194 __ and3(flags, ConstantPoolCacheEntry::parameter_size_mask, parameter_size); // argument size in words |
|
bd3237e0e18d
8026328: Setting a breakpoint on invokedynamic crashes the JVM
twisti
parents:
12010
diff
changeset
|
195 __ sll(parameter_size, Interpreter::logStackElementSize, parameter_size); // each argument size in bytes |
|
bd3237e0e18d
8026328: Setting a breakpoint on invokedynamic crashes the JVM
twisti
parents:
12010
diff
changeset
|
196 __ add(Lesp, parameter_size, Lesp); // pop arguments |
| 0 | 197 __ dispatch_next(state, step); |
| 198 | |
| 199 return entry; | |
| 200 } | |
| 201 | |
| 202 | |
|
9934
0f7ca53be929
CR-806: Changes to build Graal for SPARC
Morris Meyer <morris.meyer@oracle.com>
parents:
8727
diff
changeset
|
203 address InterpreterGenerator::generate_deopt_entry_for(TosState state, int step) { |
| 0 | 204 address entry = __ pc(); |
| 205 __ get_constant_pool_cache(LcpoolCache); // load LcpoolCache | |
| 22298 | 206 #if INCLUDE_JVMCI |
|
23762
a5a2ac8dfaba
Reduce the size of the deopt entry points in the interpreter
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
23660
diff
changeset
|
207 // Check if we need to take lock at entry of synchronized method. This can |
|
a5a2ac8dfaba
Reduce the size of the deopt entry points in the interpreter
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
23660
diff
changeset
|
208 // only occur on method entry so emit it only for vtos with step 0. |
|
a5a2ac8dfaba
Reduce the size of the deopt entry points in the interpreter
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
23660
diff
changeset
|
209 if (state == vtos && step == 0) { |
|
16941
4e3b63e7a9f6
Fixing relock on interpreter when entering synchronized methods.
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
14957
diff
changeset
|
210 Label L; |
|
22460
f27c163d7dc2
moved JVMCI fields from ThreadShadow to Thread
Doug Simon <doug.simon@oracle.com>
parents:
22298
diff
changeset
|
211 Address pending_monitor_enter_addr(G2_thread, JavaThread::pending_monitorenter_offset()); |
|
16941
4e3b63e7a9f6
Fixing relock on interpreter when entering synchronized methods.
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
14957
diff
changeset
|
212 __ ldbool(pending_monitor_enter_addr, Gtemp); // Load if pending monitor enter |
|
4e3b63e7a9f6
Fixing relock on interpreter when entering synchronized methods.
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
14957
diff
changeset
|
213 __ cmp_and_br_short(Gtemp, G0, Assembler::equal, Assembler::pn, L); |
|
4e3b63e7a9f6
Fixing relock on interpreter when entering synchronized methods.
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
14957
diff
changeset
|
214 // Clear flag. |
|
4e3b63e7a9f6
Fixing relock on interpreter when entering synchronized methods.
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
14957
diff
changeset
|
215 __ stbool(G0, pending_monitor_enter_addr); |
|
4e3b63e7a9f6
Fixing relock on interpreter when entering synchronized methods.
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
14957
diff
changeset
|
216 // Take lock. |
|
4e3b63e7a9f6
Fixing relock on interpreter when entering synchronized methods.
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
14957
diff
changeset
|
217 lock_method(); |
|
4e3b63e7a9f6
Fixing relock on interpreter when entering synchronized methods.
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
14957
diff
changeset
|
218 __ bind(L); |
|
23762
a5a2ac8dfaba
Reduce the size of the deopt entry points in the interpreter
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
23660
diff
changeset
|
219 } else { |
|
a5a2ac8dfaba
Reduce the size of the deopt entry points in the interpreter
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
23660
diff
changeset
|
220 #ifdef ASSERT |
|
a5a2ac8dfaba
Reduce the size of the deopt entry points in the interpreter
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
23660
diff
changeset
|
221 Label L; |
|
a5a2ac8dfaba
Reduce the size of the deopt entry points in the interpreter
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
23660
diff
changeset
|
222 Address pending_monitor_enter_addr(G2_thread, JavaThread::pending_monitorenter_offset()); |
|
a5a2ac8dfaba
Reduce the size of the deopt entry points in the interpreter
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
23660
diff
changeset
|
223 __ ldbool(pending_monitor_enter_addr, Gtemp); // Load if pending monitor enter |
|
a5a2ac8dfaba
Reduce the size of the deopt entry points in the interpreter
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
23660
diff
changeset
|
224 __ cmp_and_br_short(Gtemp, G0, Assembler::equal, Assembler::pn, L); |
|
a5a2ac8dfaba
Reduce the size of the deopt entry points in the interpreter
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
23660
diff
changeset
|
225 __ stop("unexpected pending monitor in deopt entry"); |
|
a5a2ac8dfaba
Reduce the size of the deopt entry points in the interpreter
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
23660
diff
changeset
|
226 __ bind(L); |
|
a5a2ac8dfaba
Reduce the size of the deopt entry points in the interpreter
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
23660
diff
changeset
|
227 #endif |
|
16941
4e3b63e7a9f6
Fixing relock on interpreter when entering synchronized methods.
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
14957
diff
changeset
|
228 } |
|
4e3b63e7a9f6
Fixing relock on interpreter when entering synchronized methods.
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
14957
diff
changeset
|
229 #endif |
| 0 | 230 { Label L; |
| 727 | 231 Address exception_addr(G2_thread, Thread::pending_exception_offset()); |
| 232 __ ld_ptr(exception_addr, Gtemp); // Load pending exception. | |
| 3839 | 233 __ br_null_short(Gtemp, Assembler::pt, L); |
| 0 | 234 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_pending_exception)); |
| 235 __ should_not_reach_here(); | |
| 236 __ bind(L); | |
| 237 } | |
| 238 __ dispatch_next(state, step); | |
| 239 return entry; | |
| 240 } | |
| 241 | |
| 242 // A result handler converts/unboxes a native call result into | |
| 243 // a java interpreter/compiler result. The current frame is an | |
| 244 // interpreter frame. The activation frame unwind code must be | |
| 245 // consistent with that of TemplateTable::_return(...). In the | |
| 246 // case of native methods, the caller's SP was not modified. | |
| 247 address TemplateInterpreterGenerator::generate_result_handler_for(BasicType type) { | |
| 248 address entry = __ pc(); | |
| 249 Register Itos_i = Otos_i ->after_save(); | |
| 250 Register Itos_l = Otos_l ->after_save(); | |
| 251 Register Itos_l1 = Otos_l1->after_save(); | |
| 252 Register Itos_l2 = Otos_l2->after_save(); | |
| 253 switch (type) { | |
| 254 case T_BOOLEAN: __ subcc(G0, O0, G0); __ addc(G0, 0, Itos_i); break; // !0 => true; 0 => false | |
| 255 case T_CHAR : __ sll(O0, 16, O0); __ srl(O0, 16, Itos_i); break; // cannot use and3, 0xFFFF too big as immediate value! | |
| 256 case T_BYTE : __ sll(O0, 24, O0); __ sra(O0, 24, Itos_i); break; | |
| 257 case T_SHORT : __ sll(O0, 16, O0); __ sra(O0, 16, Itos_i); break; | |
| 258 case T_LONG : | |
| 259 #ifndef _LP64 | |
| 260 __ mov(O1, Itos_l2); // move other half of long | |
| 261 #endif // ifdef or no ifdef, fall through to the T_INT case | |
| 262 case T_INT : __ mov(O0, Itos_i); break; | |
| 263 case T_VOID : /* nothing to do */ break; | |
| 264 case T_FLOAT : assert(F0 == Ftos_f, "fix this code" ); break; | |
| 265 case T_DOUBLE : assert(F0 == Ftos_d, "fix this code" ); break; | |
| 266 case T_OBJECT : | |
| 267 __ ld_ptr(FP, (frame::interpreter_frame_oop_temp_offset*wordSize) + STACK_BIAS, Itos_i); | |
| 268 __ verify_oop(Itos_i); | |
| 269 break; | |
| 270 default : ShouldNotReachHere(); | |
| 271 } | |
| 272 __ ret(); // return from interpreter activation | |
| 273 __ delayed()->restore(I5_savedSP, G0, SP); // remove interpreter frame | |
|
7476
ffa87474d7a4
8004537: replace AbstractAssembler emit_long with emit_int32
twisti
parents:
7431
diff
changeset
|
274 NOT_PRODUCT(__ emit_int32(0);) // marker for disassembly |
| 0 | 275 return entry; |
| 276 } | |
| 277 | |
| 278 address TemplateInterpreterGenerator::generate_safept_entry_for(TosState state, address runtime_entry) { | |
| 279 address entry = __ pc(); | |
| 280 __ push(state); | |
| 281 __ call_VM(noreg, runtime_entry); | |
| 282 __ dispatch_via(vtos, Interpreter::normal_table(vtos)); | |
| 283 return entry; | |
| 284 } | |
| 285 | |
| 286 | |
| 287 address TemplateInterpreterGenerator::generate_continuation_for(TosState state) { | |
| 288 address entry = __ pc(); | |
| 289 __ dispatch_next(state); | |
| 290 return entry; | |
| 291 } | |
| 292 | |
| 293 // | |
| 294 // Helpers for commoning out cases in the various type of method entries. | |
| 295 // | |
| 296 | |
| 297 // increment invocation count & check for overflow | |
| 298 // | |
| 299 // Note: checking for negative value instead of overflow | |
| 300 // so we have a 'sticky' overflow test | |
| 301 // | |
| 302 // Lmethod: method | |
| 303 // ??: invocation counter | |
| 304 // | |
| 305 void InterpreterGenerator::generate_counter_incr(Label* overflow, Label* profile_method, Label* profile_method_continue) { | |
|
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
306 // Note: In tiered we increment either counters in MethodCounters* or in |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
307 // MDO depending if we're profiling or not. |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
308 const Register Rcounters = G3_scratch; |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
309 Label done; |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
310 |
| 1783 | 311 if (TieredCompilation) { |
| 312 const int increment = InvocationCounter::count_increment; | |
| 313 const int mask = ((1 << Tier0InvokeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
|
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
314 Label no_mdo; |
| 1783 | 315 if (ProfileInterpreter) { |
| 316 // If no method data exists, go to profile_continue. | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
317 __ ld_ptr(Lmethod, Method::method_data_offset(), G4_scratch); |
| 3839 | 318 __ br_null_short(G4_scratch, Assembler::pn, no_mdo); |
| 1783 | 319 // Increment counter |
| 320 Address mdo_invocation_counter(G4_scratch, | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
321 in_bytes(MethodData::invocation_counter_offset()) + |
| 1783 | 322 in_bytes(InvocationCounter::counter_offset())); |
| 323 __ increment_mask_and_jump(mdo_invocation_counter, increment, mask, | |
| 324 G3_scratch, Lscratch, | |
| 325 Assembler::zero, overflow); | |
| 3839 | 326 __ ba_short(done); |
| 1783 | 327 } |
| 0 | 328 |
|
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
329 // Increment counter in MethodCounters* |
| 1783 | 330 __ bind(no_mdo); |
|
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
331 Address invocation_counter(Rcounters, |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
332 in_bytes(MethodCounters::invocation_counter_offset()) + |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
333 in_bytes(InvocationCounter::counter_offset())); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
334 __ get_method_counters(Lmethod, Rcounters, done); |
| 1783 | 335 __ increment_mask_and_jump(invocation_counter, increment, mask, |
|
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
336 G4_scratch, Lscratch, |
| 1783 | 337 Assembler::zero, overflow); |
| 338 __ bind(done); | |
| 339 } else { | |
| 340 // Update standard invocation counters | |
|
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
341 __ get_method_counters(Lmethod, Rcounters, done); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
342 __ increment_invocation_counter(Rcounters, O0, G4_scratch); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
343 if (ProfileInterpreter) { |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
344 Address interpreter_invocation_counter(Rcounters, |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
345 in_bytes(MethodCounters::interpreter_invocation_counter_offset())); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
346 __ ld(interpreter_invocation_counter, G4_scratch); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
347 __ inc(G4_scratch); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
348 __ st(G4_scratch, interpreter_invocation_counter); |
| 1783 | 349 } |
| 0 | 350 |
| 1783 | 351 if (ProfileInterpreter && profile_method != NULL) { |
| 352 // Test to see if we should create a method data oop | |
| 353 AddressLiteral profile_limit((address)&InvocationCounter::InterpreterProfileLimit); | |
| 354 __ load_contents(profile_limit, G3_scratch); | |
| 3839 | 355 __ cmp_and_br_short(O0, G3_scratch, Assembler::lessUnsigned, Assembler::pn, *profile_method_continue); |
| 0 | 356 |
| 1783 | 357 // if no method data exists, go to profile_method |
| 358 __ test_method_data_pointer(*profile_method); | |
| 359 } | |
| 360 | |
| 361 AddressLiteral invocation_limit((address)&InvocationCounter::InterpreterInvocationLimit); | |
| 362 __ load_contents(invocation_limit, G3_scratch); | |
| 363 __ cmp(O0, G3_scratch); | |
| 3839 | 364 __ br(Assembler::greaterEqualUnsigned, false, Assembler::pn, *overflow); // Far distance |
| 1783 | 365 __ delayed()->nop(); |
|
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8727
diff
changeset
|
366 __ bind(done); |
| 1783 | 367 } |
| 0 | 368 |
| 369 } | |
| 370 | |
| 371 // Allocate monitor and lock method (asm interpreter) | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
372 // ebx - Method* |
| 0 | 373 // |
| 374 void InterpreterGenerator::lock_method(void) { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
375 __ ld(Lmethod, in_bytes(Method::access_flags_offset()), O0); // Load access flags. |
| 0 | 376 |
| 377 #ifdef ASSERT | |
| 378 { Label ok; | |
| 379 __ btst(JVM_ACC_SYNCHRONIZED, O0); | |
| 380 __ br( Assembler::notZero, false, Assembler::pt, ok); | |
| 381 __ delayed()->nop(); | |
| 382 __ stop("method doesn't need synchronization"); | |
| 383 __ bind(ok); | |
| 384 } | |
| 385 #endif // ASSERT | |
| 386 | |
| 387 // get synchronization object to O0 | |
| 388 { Label done; | |
|
4762
069ab3f976d3
7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions
stefank
parents:
3839
diff
changeset
|
389 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
| 0 | 390 __ btst(JVM_ACC_STATIC, O0); |
| 391 __ br( Assembler::zero, true, Assembler::pt, done); | |
| 392 __ delayed()->ld_ptr(Llocals, Interpreter::local_offset_in_bytes(0), O0); // get receiver for not-static case | |
| 393 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
394 __ ld_ptr( Lmethod, in_bytes(Method::const_offset()), O0); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
395 __ ld_ptr( O0, in_bytes(ConstMethod::constants_offset()), O0); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
396 __ ld_ptr( O0, ConstantPool::pool_holder_offset_in_bytes(), O0); |
| 0 | 397 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
398 // lock the mirror, not the Klass* |
| 0 | 399 __ ld_ptr( O0, mirror_offset, O0); |
| 400 | |
| 401 #ifdef ASSERT | |
| 402 __ tst(O0); | |
| 5923 | 403 __ breakpoint_trap(Assembler::zero, Assembler::ptr_cc); |
| 0 | 404 #endif // ASSERT |
| 405 | |
| 406 __ bind(done); | |
| 407 } | |
| 408 | |
| 409 __ add_monitor_to_stack(true, noreg, noreg); // allocate monitor elem | |
| 410 __ st_ptr( O0, Lmonitors, BasicObjectLock::obj_offset_in_bytes()); // store object | |
| 411 // __ untested("lock_object from method entry"); | |
| 412 __ lock_object(Lmonitors, O0); | |
| 413 } | |
| 414 | |
| 415 | |
| 416 void TemplateInterpreterGenerator::generate_stack_overflow_check(Register Rframe_size, | |
| 417 Register Rscratch, | |
| 418 Register Rscratch2) { | |
| 419 const int page_size = os::vm_page_size(); | |
| 420 Label after_frame_check; | |
| 421 | |
| 422 assert_different_registers(Rframe_size, Rscratch, Rscratch2); | |
| 423 | |
| 3839 | 424 __ set(page_size, Rscratch); |
| 425 __ cmp_and_br_short(Rframe_size, Rscratch, Assembler::lessEqual, Assembler::pt, after_frame_check); | |
| 0 | 426 |
| 427 // get the stack base, and in debug, verify it is non-zero | |
| 727 | 428 __ ld_ptr( G2_thread, Thread::stack_base_offset(), Rscratch ); |
| 0 | 429 #ifdef ASSERT |
| 430 Label base_not_zero; | |
| 3839 | 431 __ br_notnull_short(Rscratch, Assembler::pn, base_not_zero); |
| 0 | 432 __ stop("stack base is zero in generate_stack_overflow_check"); |
| 433 __ bind(base_not_zero); | |
| 434 #endif | |
| 435 | |
| 436 // get the stack size, and in debug, verify it is non-zero | |
| 437 assert( sizeof(size_t) == sizeof(intptr_t), "wrong load size" ); | |
| 727 | 438 __ ld_ptr( G2_thread, Thread::stack_size_offset(), Rscratch2 ); |
| 0 | 439 #ifdef ASSERT |
| 440 Label size_not_zero; | |
| 3839 | 441 __ br_notnull_short(Rscratch2, Assembler::pn, size_not_zero); |
| 0 | 442 __ stop("stack size is zero in generate_stack_overflow_check"); |
| 443 __ bind(size_not_zero); | |
| 444 #endif | |
| 445 | |
| 446 // compute the beginning of the protected zone minus the requested frame size | |
| 447 __ sub( Rscratch, Rscratch2, Rscratch ); | |
| 448 __ set( (StackRedPages+StackYellowPages) * page_size, Rscratch2 ); | |
| 449 __ add( Rscratch, Rscratch2, Rscratch ); | |
| 450 | |
| 451 // Add in the size of the frame (which is the same as subtracting it from the | |
| 452 // SP, which would take another register | |
| 453 __ add( Rscratch, Rframe_size, Rscratch ); | |
| 454 | |
| 455 // the frame is greater than one page in size, so check against | |
| 456 // the bottom of the stack | |
|
7416
a70c88896791
8004713: Stackoverflowerror thrown when thread stack straddles 0x80000000
kvn
parents:
7206
diff
changeset
|
457 __ cmp_and_brx_short(SP, Rscratch, Assembler::greaterUnsigned, Assembler::pt, after_frame_check); |
| 0 | 458 |
| 4743 | 459 // the stack will overflow, throw an exception |
| 460 | |
| 461 // Note that SP is restored to sender's sp (in the delay slot). This | |
| 462 // is necessary if the sender's frame is an extended compiled frame | |
| 463 // (see gen_c2i_adapter()) and safer anyway in case of JSR292 | |
| 464 // adaptations. | |
| 0 | 465 |
| 4743 | 466 // Note also that the restored frame is not necessarily interpreted. |
| 467 // Use the shared runtime version of the StackOverflowError. | |
| 468 assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated"); | |
| 469 AddressLiteral stub(StubRoutines::throw_StackOverflowError_entry()); | |
| 470 __ jump_to(stub, Rscratch); | |
| 471 __ delayed()->mov(O5_savedSP, SP); | |
| 0 | 472 |
| 473 // if you get to here, then there is enough stack space | |
| 474 __ bind( after_frame_check ); | |
| 475 } | |
| 476 | |
| 477 | |
| 478 // | |
| 479 // Generate a fixed interpreter frame. This is identical setup for interpreted | |
| 480 // methods and for native methods hence the shared code. | |
| 481 | |
| 482 void TemplateInterpreterGenerator::generate_fixed_frame(bool native_call) { | |
| 483 // | |
| 484 // | |
| 485 // The entry code sets up a new interpreter frame in 4 steps: | |
| 486 // | |
| 487 // 1) Increase caller's SP by for the extra local space needed: | |
| 488 // (check for overflow) | |
| 489 // Efficient implementation of xload/xstore bytecodes requires | |
| 490 // that arguments and non-argument locals are in a contigously | |
| 491 // addressable memory block => non-argument locals must be | |
| 492 // allocated in the caller's frame. | |
| 493 // | |
| 494 // 2) Create a new stack frame and register window: | |
| 495 // The new stack frame must provide space for the standard | |
| 496 // register save area, the maximum java expression stack size, | |
| 497 // the monitor slots (0 slots initially), and some frame local | |
| 498 // scratch locations. | |
| 499 // | |
| 500 // 3) The following interpreter activation registers must be setup: | |
| 501 // Lesp : expression stack pointer | |
| 502 // Lbcp : bytecode pointer | |
| 503 // Lmethod : method | |
| 504 // Llocals : locals pointer | |
| 505 // Lmonitors : monitor pointer | |
| 506 // LcpoolCache: constant pool cache | |
| 507 // | |
| 508 // 4) Initialize the non-argument locals if necessary: | |
| 509 // Non-argument locals may need to be initialized to NULL | |
| 510 // for GC to work. If the oop-map information is accurate | |
| 511 // (in the absence of the JSR problem), no initialization | |
| 512 // is necessary. | |
| 513 // | |
| 514 // (gri - 2/25/2000) | |
| 515 | |
| 516 | |
| 517 int rounded_vm_local_words = round_to( frame::interpreter_frame_vm_local_words, WordsPerLong ); | |
| 518 | |
| 519 const int extra_space = | |
| 520 rounded_vm_local_words + // frame local scratch space | |
|
10393
603ca7e51354
8010460: Interpreter on some platforms loads ConstMethod::_max_stack and misses extra stack slots for JSR 292
roland
parents:
10105
diff
changeset
|
521 Method::extra_stack_entries() + // extra stack for jsr 292 |
| 0 | 522 frame::memory_parameter_word_sp_offset + // register save area |
| 523 (native_call ? frame::interpreter_frame_extra_outgoing_argument_words : 0); | |
| 524 | |
| 525 const Register Glocals_size = G3; | |
|
7402
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
526 const Register RconstMethod = Glocals_size; |
| 0 | 527 const Register Otmp1 = O3; |
| 528 const Register Otmp2 = O4; | |
| 529 // Lscratch can't be used as a temporary because the call_stub uses | |
| 530 // it to assert that the stack frame was setup correctly. | |
|
7402
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
531 const Address constMethod (G5_method, Method::const_offset()); |
|
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
532 const Address size_of_parameters(RconstMethod, ConstMethod::size_of_parameters_offset()); |
| 0 | 533 |
|
7402
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
534 __ ld_ptr( constMethod, RconstMethod ); |
| 0 | 535 __ lduh( size_of_parameters, Glocals_size); |
| 536 | |
| 537 // Gargs points to first local + BytesPerWord | |
| 538 // Set the saved SP after the register window save | |
| 539 // | |
| 540 assert_different_registers(Gargs, Glocals_size, Gframe_size, O5_savedSP); | |
| 1506 | 541 __ sll(Glocals_size, Interpreter::logStackElementSize, Otmp1); |
| 0 | 542 __ add(Gargs, Otmp1, Gargs); |
| 543 | |
| 544 if (native_call) { | |
| 545 __ calc_mem_param_words( Glocals_size, Gframe_size ); | |
| 546 __ add( Gframe_size, extra_space, Gframe_size); | |
| 547 __ round_to( Gframe_size, WordsPerLong ); | |
| 548 __ sll( Gframe_size, LogBytesPerWord, Gframe_size ); | |
| 549 } else { | |
| 550 | |
| 551 // | |
| 552 // Compute number of locals in method apart from incoming parameters | |
| 553 // | |
|
7402
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
554 const Address size_of_locals (Otmp1, ConstMethod::size_of_locals_offset()); |
|
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
555 __ ld_ptr( constMethod, Otmp1 ); |
| 0 | 556 __ lduh( size_of_locals, Otmp1 ); |
| 557 __ sub( Otmp1, Glocals_size, Glocals_size ); | |
| 558 __ round_to( Glocals_size, WordsPerLong ); | |
| 1506 | 559 __ sll( Glocals_size, Interpreter::logStackElementSize, Glocals_size ); |
| 0 | 560 |
| 561 // see if the frame is greater than one page in size. If so, | |
| 562 // then we need to verify there is enough stack space remaining | |
| 563 // Frame_size = (max_stack + extra_space) * BytesPerWord; | |
|
7183
b2dbd323c668
8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod.
jiangli
parents:
6725
diff
changeset
|
564 __ ld_ptr( constMethod, Gframe_size ); |
|
b2dbd323c668
8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod.
jiangli
parents:
6725
diff
changeset
|
565 __ lduh( Gframe_size, in_bytes(ConstMethod::max_stack_offset()), Gframe_size ); |
| 0 | 566 __ add( Gframe_size, extra_space, Gframe_size ); |
| 567 __ round_to( Gframe_size, WordsPerLong ); | |
| 1506 | 568 __ sll( Gframe_size, Interpreter::logStackElementSize, Gframe_size); |
| 0 | 569 |
| 570 // Add in java locals size for stack overflow check only | |
| 571 __ add( Gframe_size, Glocals_size, Gframe_size ); | |
| 572 | |
| 573 const Register Otmp2 = O4; | |
| 574 assert_different_registers(Otmp1, Otmp2, O5_savedSP); | |
| 575 generate_stack_overflow_check(Gframe_size, Otmp1, Otmp2); | |
| 576 | |
| 577 __ sub( Gframe_size, Glocals_size, Gframe_size); | |
| 578 | |
| 579 // | |
| 580 // bump SP to accomodate the extra locals | |
| 581 // | |
| 582 __ sub( SP, Glocals_size, SP ); | |
| 583 } | |
| 584 | |
| 585 // | |
| 586 // now set up a stack frame with the size computed above | |
| 587 // | |
| 588 __ neg( Gframe_size ); | |
| 589 __ save( SP, Gframe_size, SP ); | |
| 590 | |
| 591 // | |
| 592 // now set up all the local cache registers | |
| 593 // | |
| 594 // NOTE: At this point, Lbyte_code/Lscratch has been modified. Note | |
| 595 // that all present references to Lbyte_code initialize the register | |
| 596 // immediately before use | |
| 597 if (native_call) { | |
| 598 __ mov(G0, Lbcp); | |
| 599 } else { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
600 __ ld_ptr(G5_method, Method::const_offset(), Lbcp); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
601 __ add(Lbcp, in_bytes(ConstMethod::codes_offset()), Lbcp); |
| 0 | 602 } |
| 603 __ mov( G5_method, Lmethod); // set Lmethod | |
| 604 __ get_constant_pool_cache( LcpoolCache ); // set LcpoolCache | |
| 605 __ sub(FP, rounded_vm_local_words * BytesPerWord, Lmonitors ); // set Lmonitors | |
| 606 #ifdef _LP64 | |
| 607 __ add( Lmonitors, STACK_BIAS, Lmonitors ); // Account for 64 bit stack bias | |
| 608 #endif | |
| 609 __ sub(Lmonitors, BytesPerWord, Lesp); // set Lesp | |
| 610 | |
| 611 // setup interpreter activation registers | |
| 612 __ sub(Gargs, BytesPerWord, Llocals); // set Llocals | |
| 613 | |
| 614 if (ProfileInterpreter) { | |
| 615 #ifdef FAST_DISPATCH | |
| 616 // FAST_DISPATCH and ProfileInterpreter are mutually exclusive since | |
| 617 // they both use I2. | |
| 618 assert(0, "FAST_DISPATCH and +ProfileInterpreter are mutually exclusive"); | |
| 619 #endif // FAST_DISPATCH | |
| 620 __ set_method_data_pointer(); | |
| 621 } | |
| 622 | |
| 623 } | |
| 624 | |
| 625 // Empty method, generate a very fast return. | |
| 626 | |
| 627 address InterpreterGenerator::generate_empty_entry(void) { | |
| 628 | |
| 629 // A method that does nother but return... | |
| 630 | |
| 631 address entry = __ pc(); | |
| 632 Label slow_path; | |
| 633 | |
| 634 // do nothing for empty methods (do not even increment invocation counter) | |
| 635 if ( UseFastEmptyMethods) { | |
| 636 // If we need a safepoint check, generate full interpreter entry. | |
| 727 | 637 AddressLiteral sync_state(SafepointSynchronize::address_of_state()); |
| 638 __ set(sync_state, G3_scratch); | |
| 3839 | 639 __ cmp_and_br_short(G3_scratch, SafepointSynchronize::_not_synchronized, Assembler::notEqual, Assembler::pn, slow_path); |
| 0 | 640 |
| 641 // Code: _return | |
| 642 __ retl(); | |
| 643 __ delayed()->mov(O5_savedSP, SP); | |
| 644 | |
| 645 __ bind(slow_path); | |
| 646 (void) generate_normal_entry(false); | |
| 647 | |
| 648 return entry; | |
| 649 } | |
| 650 return NULL; | |
| 651 } | |
| 652 | |
| 653 // Call an accessor method (assuming it is resolved, otherwise drop into | |
| 654 // vanilla (slow path) entry | |
| 655 | |
| 656 // Generates code to elide accessor methods | |
| 657 // Uses G3_scratch and G1_scratch as scratch | |
| 658 address InterpreterGenerator::generate_accessor_entry(void) { | |
| 659 | |
| 660 // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites thereof; | |
| 661 // parameter size = 1 | |
| 662 // Note: We can only use this code if the getfield has been resolved | |
| 663 // and if we don't have a null-pointer exception => check for | |
| 664 // these conditions first and use slow path if necessary. | |
| 665 address entry = __ pc(); | |
| 666 Label slow_path; | |
| 667 | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
668 |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
669 // XXX: for compressed oops pointer loading and decoding doesn't fit in |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
670 // delay slot and damages G1 |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
671 if ( UseFastAccessorMethods && !UseCompressedOops ) { |
| 0 | 672 // Check if we need to reach a safepoint and generate full interpreter |
| 673 // frame if so. | |
| 727 | 674 AddressLiteral sync_state(SafepointSynchronize::address_of_state()); |
| 0 | 675 __ load_contents(sync_state, G3_scratch); |
| 676 __ cmp(G3_scratch, SafepointSynchronize::_not_synchronized); | |
| 3839 | 677 __ cmp_and_br_short(G3_scratch, SafepointSynchronize::_not_synchronized, Assembler::notEqual, Assembler::pn, slow_path); |
| 0 | 678 |
| 679 // Check if local 0 != NULL | |
| 680 __ ld_ptr(Gargs, G0, Otos_i ); // get local 0 | |
| 3839 | 681 // check if local 0 == NULL and go the slow path |
| 682 __ br_null_short(Otos_i, Assembler::pn, slow_path); | |
| 0 | 683 |
| 684 | |
| 685 // read first instruction word and extract bytecode @ 1 and index @ 2 | |
| 686 // get first 4 bytes of the bytecodes (big endian!) | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
687 __ ld_ptr(G5_method, Method::const_offset(), G1_scratch); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
688 __ ld(G1_scratch, ConstMethod::codes_offset(), G1_scratch); |
| 0 | 689 |
| 690 // move index @ 2 far left then to the right most two bytes. | |
| 691 __ sll(G1_scratch, 2*BitsPerByte, G1_scratch); | |
| 692 __ srl(G1_scratch, 2*BitsPerByte - exact_log2(in_words( | |
| 693 ConstantPoolCacheEntry::size()) * BytesPerWord), G1_scratch); | |
| 694 | |
| 695 // get constant pool cache | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
696 __ ld_ptr(G5_method, Method::const_offset(), G3_scratch); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
697 __ ld_ptr(G3_scratch, ConstMethod::constants_offset(), G3_scratch); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
698 __ ld_ptr(G3_scratch, ConstantPool::cache_offset_in_bytes(), G3_scratch); |
| 0 | 699 |
| 700 // get specific constant pool cache entry | |
| 701 __ add(G3_scratch, G1_scratch, G3_scratch); | |
| 702 | |
| 703 // Check the constant Pool cache entry to see if it has been resolved. | |
| 704 // If not, need the slow path. | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
705 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 727 | 706 __ ld_ptr(G3_scratch, cp_base_offset + ConstantPoolCacheEntry::indices_offset(), G1_scratch); |
| 0 | 707 __ srl(G1_scratch, 2*BitsPerByte, G1_scratch); |
| 708 __ and3(G1_scratch, 0xFF, G1_scratch); | |
| 3839 | 709 __ cmp_and_br_short(G1_scratch, Bytecodes::_getfield, Assembler::notEqual, Assembler::pn, slow_path); |
| 0 | 710 |
| 711 // Get the type and return field offset from the constant pool cache | |
| 727 | 712 __ ld_ptr(G3_scratch, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), G1_scratch); |
| 713 __ ld_ptr(G3_scratch, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), G3_scratch); | |
| 0 | 714 |
| 715 Label xreturn_path; | |
| 716 // Need to differentiate between igetfield, agetfield, bgetfield etc. | |
| 717 // because they are different sizes. | |
| 718 // Get the type from the constant pool cache | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6123
diff
changeset
|
719 __ srl(G1_scratch, ConstantPoolCacheEntry::tos_state_shift, G1_scratch); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6123
diff
changeset
|
720 // Make sure we don't need to mask G1_scratch after the above shift |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6123
diff
changeset
|
721 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 722 __ cmp(G1_scratch, atos ); |
| 723 __ br(Assembler::equal, true, Assembler::pt, xreturn_path); | |
| 724 __ delayed()->ld_ptr(Otos_i, G3_scratch, Otos_i); | |
| 725 __ cmp(G1_scratch, itos); | |
| 726 __ br(Assembler::equal, true, Assembler::pt, xreturn_path); | |
| 727 __ delayed()->ld(Otos_i, G3_scratch, Otos_i); | |
| 728 __ cmp(G1_scratch, stos); | |
| 729 __ br(Assembler::equal, true, Assembler::pt, xreturn_path); | |
| 730 __ delayed()->ldsh(Otos_i, G3_scratch, Otos_i); | |
| 731 __ cmp(G1_scratch, ctos); | |
| 732 __ br(Assembler::equal, true, Assembler::pt, xreturn_path); | |
| 733 __ delayed()->lduh(Otos_i, G3_scratch, Otos_i); | |
| 734 #ifdef ASSERT | |
| 735 __ cmp(G1_scratch, btos); | |
| 736 __ br(Assembler::equal, true, Assembler::pt, xreturn_path); | |
| 737 __ delayed()->ldsb(Otos_i, G3_scratch, Otos_i); | |
| 23614 | 738 __ cmp(G1_scratch, ztos); |
| 739 __ br(Assembler::equal, true, Assembler::pt, xreturn_path); | |
| 740 __ delayed()->ldsb(Otos_i, G3_scratch, Otos_i); | |
| 0 | 741 __ should_not_reach_here(); |
| 742 #endif | |
| 743 __ ldsb(Otos_i, G3_scratch, Otos_i); | |
| 744 __ bind(xreturn_path); | |
| 745 | |
| 746 // _ireturn/_areturn | |
| 747 __ retl(); // return from leaf routine | |
| 748 __ delayed()->mov(O5_savedSP, SP); | |
| 749 | |
| 750 // Generate regular method entry | |
| 751 __ bind(slow_path); | |
| 752 (void) generate_normal_entry(false); | |
| 753 return entry; | |
| 754 } | |
| 755 return NULL; | |
| 756 } | |
| 757 | |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
758 // Method entry for java.lang.ref.Reference.get. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
759 address InterpreterGenerator::generate_Reference_get_entry(void) { |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7476
diff
changeset
|
760 #if INCLUDE_ALL_GCS |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
761 // Code: _aload_0, _getfield, _areturn |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
762 // parameter size = 1 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
763 // |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
764 // The code that gets generated by this routine is split into 2 parts: |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
765 // 1. The "intrinsified" code for G1 (or any SATB based GC), |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
766 // 2. The slow path - which is an expansion of the regular method entry. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
767 // |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
768 // Notes:- |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
769 // * In the G1 code we do not check whether we need to block for |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
770 // a safepoint. If G1 is enabled then we must execute the specialized |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
771 // code for Reference.get (except when the Reference object is null) |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
772 // so that we can log the value in the referent field with an SATB |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
773 // update buffer. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
774 // If the code for the getfield template is modified so that the |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
775 // G1 pre-barrier code is executed when the current method is |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
776 // Reference.get() then going through the normal method entry |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
777 // will be fine. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
778 // * The G1 code can, however, check the receiver object (the instance |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
779 // of java.lang.Reference) and jump to the slow path if null. If the |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
780 // Reference object is null then we obviously cannot fetch the referent |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
781 // and so we don't need to call the G1 pre-barrier. Thus we can use the |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
782 // regular method entry code to generate the NPE. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
783 // |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
784 // This code is based on generate_accessor_enty. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
785 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
786 address entry = __ pc(); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
787 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
788 const int referent_offset = java_lang_ref_Reference::referent_offset; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
789 guarantee(referent_offset > 0, "referent offset not initialized"); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
790 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
791 if (UseG1GC) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
792 Label slow_path; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
793 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
794 // In the G1 code we don't check if we need to reach a safepoint. We |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
795 // continue and the thread will safepoint at the next bytecode dispatch. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
796 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
797 // Check if local 0 != NULL |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
798 // If the receiver is null then it is OK to jump to the slow path. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
799 __ ld_ptr(Gargs, G0, Otos_i ); // get local 0 |
| 3839 | 800 // check if local 0 == NULL and go the slow path |
| 801 __ cmp_and_brx_short(Otos_i, 0, Assembler::equal, Assembler::pn, slow_path); | |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
802 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
803 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
804 // Load the value of the referent field. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
805 if (Assembler::is_simm13(referent_offset)) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
806 __ load_heap_oop(Otos_i, referent_offset, Otos_i); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
807 } else { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
808 __ set(referent_offset, G3_scratch); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
809 __ load_heap_oop(Otos_i, G3_scratch, Otos_i); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
810 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
811 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
812 // Generate the G1 pre-barrier code to log the value of |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
813 // the referent field in an SATB buffer. Note with |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
814 // these parameters the pre-barrier does not generate |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
815 // the load of the previous value |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
816 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
817 __ g1_write_barrier_pre(noreg /* obj */, noreg /* index */, 0 /* offset */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
818 Otos_i /* pre_val */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
819 G3_scratch /* tmp */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
820 true /* preserve_o_regs */); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
821 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
822 // _areturn |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
823 __ retl(); // return from leaf routine |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
824 __ delayed()->mov(O5_savedSP, SP); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
825 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
826 // Generate regular method entry |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
827 __ bind(slow_path); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
828 (void) generate_normal_entry(false); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
829 return entry; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
830 } |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7476
diff
changeset
|
831 #endif // INCLUDE_ALL_GCS |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
832 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
833 // If G1 is not enabled then attempt to go through the accessor entry point |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
834 // Reference.get is an accessor |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
835 return generate_accessor_entry(); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
836 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2118
diff
changeset
|
837 |
| 0 | 838 // |
| 839 // Interpreter stub for calling a native method. (asm interpreter) | |
| 840 // This sets up a somewhat different looking stack for calling the native method | |
| 841 // than the typical interpreter frame setup. | |
| 842 // | |
| 843 | |
| 844 address InterpreterGenerator::generate_native_entry(bool synchronized) { | |
| 845 address entry = __ pc(); | |
| 846 | |
| 847 // the following temporary registers are used during frame creation | |
| 848 const Register Gtmp1 = G3_scratch ; | |
| 849 const Register Gtmp2 = G1_scratch; | |
| 850 bool inc_counter = UseCompiler || CountCompiledCalls; | |
| 851 | |
| 852 // make sure registers are different! | |
| 853 assert_different_registers(G2_thread, G5_method, Gargs, Gtmp1, Gtmp2); | |
| 854 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
855 const Address Laccess_flags(Lmethod, Method::access_flags_offset()); |
| 0 | 856 |
| 857 const Register Glocals_size = G3; | |
| 858 assert_different_registers(Glocals_size, G4_scratch, Gframe_size); | |
| 859 | |
| 860 // make sure method is native & not abstract | |
| 861 // rethink these assertions - they can be simplified and shared (gri 2/25/2000) | |
| 862 #ifdef ASSERT | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
863 __ ld(G5_method, Method::access_flags_offset(), Gtmp1); |
| 0 | 864 { |
| 865 Label L; | |
| 866 __ btst(JVM_ACC_NATIVE, Gtmp1); | |
| 867 __ br(Assembler::notZero, false, Assembler::pt, L); | |
| 868 __ delayed()->nop(); | |
| 869 __ stop("tried to execute non-native method as native"); | |
| 870 __ bind(L); | |
| 871 } | |
| 872 { Label L; | |
| 873 __ btst(JVM_ACC_ABSTRACT, Gtmp1); | |
| 874 __ br(Assembler::zero, false, Assembler::pt, L); | |
| 875 __ delayed()->nop(); | |
| 876 __ stop("tried to execute abstract method as non-abstract"); | |
| 877 __ bind(L); | |
| 878 } | |
| 879 #endif // ASSERT | |
| 880 | |
| 881 // generate the code to allocate the interpreter stack frame | |
| 882 generate_fixed_frame(true); | |
| 883 | |
| 884 // | |
| 885 // No locals to initialize for native method | |
| 886 // | |
| 887 | |
| 888 // this slot will be set later, we initialize it to null here just in | |
| 889 // case we get a GC before the actual value is stored later | |
| 727 | 890 __ st_ptr(G0, FP, (frame::interpreter_frame_oop_temp_offset * wordSize) + STACK_BIAS); |
| 0 | 891 |
| 727 | 892 const Address do_not_unlock_if_synchronized(G2_thread, |
| 893 JavaThread::do_not_unlock_if_synchronized_offset()); | |
| 0 | 894 // Since at this point in the method invocation the exception handler |
| 895 // would try to exit the monitor of synchronized methods which hasn't | |
| 896 // been entered yet, we set the thread local variable | |
| 897 // _do_not_unlock_if_synchronized to true. If any exception was thrown by | |
| 898 // runtime, exception handling i.e. unlock_if_synchronized_method will | |
| 899 // check this thread local flag. | |
| 900 // This flag has two effects, one is to force an unwind in the topmost | |
| 901 // interpreter frame and not perform an unlock while doing so. | |
| 902 | |
| 903 __ movbool(true, G3_scratch); | |
| 904 __ stbool(G3_scratch, do_not_unlock_if_synchronized); | |
| 905 | |
| 906 // increment invocation counter and check for overflow | |
| 907 // | |
| 908 // Note: checking for negative value instead of overflow | |
| 909 // so we have a 'sticky' overflow test (may be of | |
| 910 // importance as soon as we have true MT/MP) | |
| 911 Label invocation_counter_overflow; | |
| 912 Label Lcontinue; | |
| 913 if (inc_counter) { | |
| 914 generate_counter_incr(&invocation_counter_overflow, NULL, NULL); | |
| 915 | |
| 916 } | |
| 917 __ bind(Lcontinue); | |
| 918 | |
| 919 bang_stack_shadow_pages(true); | |
| 920 | |
| 921 // reset the _do_not_unlock_if_synchronized flag | |
| 922 __ stbool(G0, do_not_unlock_if_synchronized); | |
| 923 | |
| 924 // check for synchronized methods | |
| 925 // Must happen AFTER invocation_counter check and stack overflow check, | |
| 926 // so method is not locked if overflows. | |
| 927 | |
| 928 if (synchronized) { | |
| 929 lock_method(); | |
| 930 } else { | |
| 931 #ifdef ASSERT | |
| 932 { Label ok; | |
| 933 __ ld(Laccess_flags, O0); | |
| 934 __ btst(JVM_ACC_SYNCHRONIZED, O0); | |
| 935 __ br( Assembler::zero, false, Assembler::pt, ok); | |
| 936 __ delayed()->nop(); | |
| 937 __ stop("method needs synchronization"); | |
| 938 __ bind(ok); | |
| 939 } | |
| 940 #endif // ASSERT | |
| 941 } | |
| 942 | |
| 943 | |
| 944 // start execution | |
| 945 __ verify_thread(); | |
| 946 | |
| 947 // JVMTI support | |
| 948 __ notify_method_entry(); | |
| 949 | |
| 950 // native call | |
| 951 | |
| 952 // (note that O0 is never an oop--at most it is a handle) | |
| 953 // It is important not to smash any handles created by this call, | |
| 954 // until any oop handle in O0 is dereferenced. | |
| 955 | |
| 956 // (note that the space for outgoing params is preallocated) | |
| 957 | |
| 958 // get signature handler | |
| 959 { Label L; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
960 Address signature_handler(Lmethod, Method::signature_handler_offset()); |
| 727 | 961 __ ld_ptr(signature_handler, G3_scratch); |
| 3839 | 962 __ br_notnull_short(G3_scratch, Assembler::pt, L); |
| 0 | 963 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::prepare_native_call), Lmethod); |
| 727 | 964 __ ld_ptr(signature_handler, G3_scratch); |
| 0 | 965 __ bind(L); |
| 966 } | |
| 967 | |
| 968 // Push a new frame so that the args will really be stored in | |
| 969 // Copy a few locals across so the new frame has the variables | |
| 970 // we need but these values will be dead at the jni call and | |
| 971 // therefore not gc volatile like the values in the current | |
| 972 // frame (Lmethod in particular) | |
| 973 | |
| 974 // Flush the method pointer to the register save area | |
| 975 __ st_ptr(Lmethod, SP, (Lmethod->sp_offset_in_saved_window() * wordSize) + STACK_BIAS); | |
| 976 __ mov(Llocals, O1); | |
| 727 | 977 |
| 0 | 978 // calculate where the mirror handle body is allocated in the interpreter frame: |
| 727 | 979 __ add(FP, (frame::interpreter_frame_oop_temp_offset * wordSize) + STACK_BIAS, O2); |
| 0 | 980 |
| 981 // Calculate current frame size | |
| 982 __ sub(SP, FP, O3); // Calculate negative of current frame size | |
| 983 __ save(SP, O3, SP); // Allocate an identical sized frame | |
| 984 | |
| 985 // Note I7 has leftover trash. Slow signature handler will fill it in | |
| 986 // should we get there. Normal jni call will set reasonable last_Java_pc | |
| 987 // below (and fix I7 so the stack trace doesn't have a meaningless frame | |
| 988 // in it). | |
| 989 | |
| 990 // Load interpreter frame's Lmethod into same register here | |
| 991 | |
| 992 __ ld_ptr(FP, (Lmethod->sp_offset_in_saved_window() * wordSize) + STACK_BIAS, Lmethod); | |
| 993 | |
| 994 __ mov(I1, Llocals); | |
| 995 __ mov(I2, Lscratch2); // save the address of the mirror | |
| 996 | |
| 997 | |
| 998 // ONLY Lmethod and Llocals are valid here! | |
| 999 | |
| 1000 // call signature handler, It will move the arg properly since Llocals in current frame | |
| 1001 // matches that in outer frame | |
| 1002 | |
| 1003 __ callr(G3_scratch, 0); | |
| 1004 __ delayed()->nop(); | |
| 1005 | |
| 1006 // Result handler is in Lscratch | |
| 1007 | |
| 1008 // Reload interpreter frame's Lmethod since slow signature handler may block | |
| 1009 __ ld_ptr(FP, (Lmethod->sp_offset_in_saved_window() * wordSize) + STACK_BIAS, Lmethod); | |
| 1010 | |
| 1011 { Label not_static; | |
| 1012 | |
| 1013 __ ld(Laccess_flags, O0); | |
| 1014 __ btst(JVM_ACC_STATIC, O0); | |
| 1015 __ br( Assembler::zero, false, Assembler::pt, not_static); | |
| 727 | 1016 // get native function entry point(O0 is a good temp until the very end) |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1017 __ delayed()->ld_ptr(Lmethod, in_bytes(Method::native_function_offset()), O0); |
| 0 | 1018 // for static methods insert the mirror argument |
|
4762
069ab3f976d3
7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions
stefank
parents:
3839
diff
changeset
|
1019 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
| 0 | 1020 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1021 __ ld_ptr(Lmethod, Method:: const_offset(), O1); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1022 __ ld_ptr(O1, ConstMethod::constants_offset(), O1); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1023 __ ld_ptr(O1, ConstantPool::pool_holder_offset_in_bytes(), O1); |
| 0 | 1024 __ ld_ptr(O1, mirror_offset, O1); |
| 1025 #ifdef ASSERT | |
| 1026 if (!PrintSignatureHandlers) // do not dirty the output with this | |
| 1027 { Label L; | |
| 3839 | 1028 __ br_notnull_short(O1, Assembler::pt, L); |
| 0 | 1029 __ stop("mirror is missing"); |
| 1030 __ bind(L); | |
| 1031 } | |
| 1032 #endif // ASSERT | |
| 1033 __ st_ptr(O1, Lscratch2, 0); | |
| 1034 __ mov(Lscratch2, O1); | |
| 1035 __ bind(not_static); | |
| 1036 } | |
| 1037 | |
| 1038 // At this point, arguments have been copied off of stack into | |
| 1039 // their JNI positions, which are O1..O5 and SP[68..]. | |
| 1040 // Oops are boxed in-place on the stack, with handles copied to arguments. | |
| 1041 // The result handler is in Lscratch. O0 will shortly hold the JNIEnv*. | |
| 1042 | |
| 1043 #ifdef ASSERT | |
| 1044 { Label L; | |
| 3839 | 1045 __ br_notnull_short(O0, Assembler::pt, L); |
| 0 | 1046 __ stop("native entry point is missing"); |
| 1047 __ bind(L); | |
| 1048 } | |
| 1049 #endif // ASSERT | |
| 1050 | |
| 1051 // | |
| 1052 // setup the frame anchor | |
| 1053 // | |
| 1054 // The scavenge function only needs to know that the PC of this frame is | |
| 1055 // in the interpreter method entry code, it doesn't need to know the exact | |
| 1056 // PC and hence we can use O7 which points to the return address from the | |
| 1057 // previous call in the code stream (signature handler function) | |
| 1058 // | |
| 1059 // The other trick is we set last_Java_sp to FP instead of the usual SP because | |
| 1060 // we have pushed the extra frame in order to protect the volatile register(s) | |
| 1061 // in that frame when we return from the jni call | |
| 1062 // | |
| 1063 | |
| 1064 __ set_last_Java_frame(FP, O7); | |
| 1065 __ mov(O7, I7); // make dummy interpreter frame look like one above, | |
| 1066 // not meaningless information that'll confuse me. | |
| 1067 | |
| 1068 // flush the windows now. We don't care about the current (protection) frame | |
| 1069 // only the outer frames | |
| 1070 | |
| 10997 | 1071 __ flushw(); |
| 0 | 1072 |
| 1073 // mark windows as flushed | |
| 727 | 1074 Address flags(G2_thread, JavaThread::frame_anchor_offset() + JavaFrameAnchor::flags_offset()); |
| 0 | 1075 __ set(JavaFrameAnchor::flushed, G3_scratch); |
| 1076 __ st(G3_scratch, flags); | |
| 1077 | |
| 1078 // Transition from _thread_in_Java to _thread_in_native. We are already safepoint ready. | |
| 1079 | |
| 727 | 1080 Address thread_state(G2_thread, JavaThread::thread_state_offset()); |
| 0 | 1081 #ifdef ASSERT |
| 1082 { Label L; | |
| 1083 __ ld(thread_state, G3_scratch); | |
| 3839 | 1084 __ cmp_and_br_short(G3_scratch, _thread_in_Java, Assembler::equal, Assembler::pt, L); |
| 0 | 1085 __ stop("Wrong thread state in native stub"); |
| 1086 __ bind(L); | |
| 1087 } | |
| 1088 #endif // ASSERT | |
| 1089 __ set(_thread_in_native, G3_scratch); | |
| 1090 __ st(G3_scratch, thread_state); | |
| 1091 | |
| 1092 // Call the jni method, using the delay slot to set the JNIEnv* argument. | |
| 1093 __ save_thread(L7_thread_cache); // save Gthread | |
| 1094 __ callr(O0, 0); | |
| 1095 __ delayed()-> | |
| 1096 add(L7_thread_cache, in_bytes(JavaThread::jni_environment_offset()), O0); | |
| 1097 | |
| 1098 // Back from jni method Lmethod in this frame is DEAD, DEAD, DEAD | |
| 1099 | |
| 1100 __ restore_thread(L7_thread_cache); // restore G2_thread | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
1101 __ reinit_heapbase(); |
| 0 | 1102 |
| 1103 // must we block? | |
| 1104 | |
| 1105 // Block, if necessary, before resuming in _thread_in_Java state. | |
| 1106 // In order for GC to work, don't clear the last_Java_sp until after blocking. | |
| 1107 { Label no_block; | |
| 727 | 1108 AddressLiteral sync_state(SafepointSynchronize::address_of_state()); |
| 0 | 1109 |
| 1110 // Switch thread to "native transition" state before reading the synchronization state. | |
| 1111 // This additional state is necessary because reading and testing the synchronization | |
| 1112 // state is not atomic w.r.t. GC, as this scenario demonstrates: | |
| 1113 // Java thread A, in _thread_in_native state, loads _not_synchronized and is preempted. | |
| 1114 // VM thread changes sync state to synchronizing and suspends threads for GC. | |
| 1115 // Thread A is resumed to finish this native method, but doesn't block here since it | |
| 1116 // didn't see any synchronization is progress, and escapes. | |
| 1117 __ set(_thread_in_native_trans, G3_scratch); | |
| 1118 __ st(G3_scratch, thread_state); | |
| 1119 if(os::is_MP()) { | |
| 1120 if (UseMembar) { | |
| 1121 // Force this write out before the read below | |
| 1122 __ membar(Assembler::StoreLoad); | |
| 1123 } else { | |
| 1124 // Write serialization page so VM thread can do a pseudo remote membar. | |
| 1125 // We use the current thread pointer to calculate a thread specific | |
| 1126 // offset to write to within the page. This minimizes bus traffic | |
| 1127 // due to cache line collision. | |
| 1128 __ serialize_memory(G2_thread, G1_scratch, G3_scratch); | |
| 1129 } | |
| 1130 } | |
| 1131 __ load_contents(sync_state, G3_scratch); | |
| 1132 __ cmp(G3_scratch, SafepointSynchronize::_not_synchronized); | |
| 1133 | |
| 1134 Label L; | |
| 1135 __ br(Assembler::notEqual, false, Assembler::pn, L); | |
| 727 | 1136 __ delayed()->ld(G2_thread, JavaThread::suspend_flags_offset(), G3_scratch); |
| 3839 | 1137 __ cmp_and_br_short(G3_scratch, 0, Assembler::equal, Assembler::pt, no_block); |
| 0 | 1138 __ bind(L); |
| 1139 | |
| 1140 // Block. Save any potential method result value before the operation and | |
| 1141 // use a leaf call to leave the last_Java_frame setup undisturbed. | |
| 1142 save_native_result(); | |
| 1143 __ call_VM_leaf(L7_thread_cache, | |
| 1144 CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans), | |
| 1145 G2_thread); | |
| 1146 | |
| 1147 // Restore any method result value | |
| 1148 restore_native_result(); | |
| 1149 __ bind(no_block); | |
| 1150 } | |
| 1151 | |
| 1152 // Clear the frame anchor now | |
| 1153 | |
| 1154 __ reset_last_Java_frame(); | |
| 1155 | |
| 1156 // Move the result handler address | |
| 1157 __ mov(Lscratch, G3_scratch); | |
| 1158 // return possible result to the outer frame | |
| 1159 #ifndef __LP64 | |
| 1160 __ mov(O0, I0); | |
| 1161 __ restore(O1, G0, O1); | |
| 1162 #else | |
| 1163 __ restore(O0, G0, O0); | |
| 1164 #endif /* __LP64 */ | |
| 1165 | |
| 1166 // Move result handler to expected register | |
| 1167 __ mov(G3_scratch, Lscratch); | |
| 1168 | |
| 1169 // Back in normal (native) interpreter frame. State is thread_in_native_trans | |
| 1170 // switch to thread_in_Java. | |
| 1171 | |
| 1172 __ set(_thread_in_Java, G3_scratch); | |
| 1173 __ st(G3_scratch, thread_state); | |
| 1174 | |
| 1175 // reset handle block | |
| 727 | 1176 __ ld_ptr(G2_thread, JavaThread::active_handles_offset(), G3_scratch); |
|
17850
2100bf712e2a
8039146: Fix 64-bit store to int JNIHandleBlock::_top
goetz
parents:
14260
diff
changeset
|
1177 __ st(G0, G3_scratch, JNIHandleBlock::top_offset_in_bytes()); |
| 0 | 1178 |
| 1179 // If we have an oop result store it where it will be safe for any further gc | |
| 1180 // until we return now that we've released the handle it might be protected by | |
| 1181 | |
| 1182 { | |
| 1183 Label no_oop, store_result; | |
| 1184 | |
| 1185 __ set((intptr_t)AbstractInterpreter::result_handler(T_OBJECT), G3_scratch); | |
| 3839 | 1186 __ cmp_and_brx_short(G3_scratch, Lscratch, Assembler::notEqual, Assembler::pt, no_oop); |
| 0 | 1187 __ addcc(G0, O0, O0); |
| 1188 __ brx(Assembler::notZero, true, Assembler::pt, store_result); // if result is not NULL: | |
| 1189 __ delayed()->ld_ptr(O0, 0, O0); // unbox it | |
| 1190 __ mov(G0, O0); | |
| 1191 | |
| 1192 __ bind(store_result); | |
| 1193 // Store it where gc will look for it and result handler expects it. | |
| 1194 __ st_ptr(O0, FP, (frame::interpreter_frame_oop_temp_offset*wordSize) + STACK_BIAS); | |
| 1195 | |
| 1196 __ bind(no_oop); | |
| 1197 | |
| 1198 } | |
| 1199 | |
| 1200 | |
| 1201 // handle exceptions (exception handling will handle unlocking!) | |
| 1202 { Label L; | |
| 727 | 1203 Address exception_addr(G2_thread, Thread::pending_exception_offset()); |
| 0 | 1204 __ ld_ptr(exception_addr, Gtemp); |
| 3839 | 1205 __ br_null_short(Gtemp, Assembler::pt, L); |
| 0 | 1206 // Note: This could be handled more efficiently since we know that the native |
| 1207 // method doesn't have an exception handler. We could directly return | |
| 1208 // to the exception handler for the caller. | |
| 1209 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_pending_exception)); | |
| 1210 __ should_not_reach_here(); | |
| 1211 __ bind(L); | |
| 1212 } | |
| 1213 | |
| 1214 // JVMTI support (preserves thread register) | |
| 1215 __ notify_method_exit(true, ilgl, InterpreterMacroAssembler::NotifyJVMTI); | |
| 1216 | |
| 1217 if (synchronized) { | |
| 1218 // save and restore any potential method result value around the unlocking operation | |
| 1219 save_native_result(); | |
| 1220 | |
| 1221 __ add( __ top_most_monitor(), O1); | |
| 1222 __ unlock_object(O1); | |
| 1223 | |
| 1224 restore_native_result(); | |
| 1225 } | |
| 1226 | |
| 1227 #if defined(COMPILER2) && !defined(_LP64) | |
| 1228 | |
| 1229 // C2 expects long results in G1 we can't tell if we're returning to interpreted | |
| 1230 // or compiled so just be safe. | |
| 1231 | |
| 1232 __ sllx(O0, 32, G1); // Shift bits into high G1 | |
| 1233 __ srl (O1, 0, O1); // Zero extend O1 | |
| 1234 __ or3 (O1, G1, G1); // OR 64 bits into G1 | |
| 1235 | |
| 1236 #endif /* COMPILER2 && !_LP64 */ | |
| 1237 | |
| 1238 // dispose of return address and remove activation | |
| 1239 #ifdef ASSERT | |
| 1240 { | |
| 1241 Label ok; | |
| 3839 | 1242 __ cmp_and_brx_short(I5_savedSP, FP, Assembler::greaterEqualUnsigned, Assembler::pt, ok); |
| 0 | 1243 __ stop("bad I5_savedSP value"); |
| 1244 __ should_not_reach_here(); | |
| 1245 __ bind(ok); | |
| 1246 } | |
| 1247 #endif | |
| 1248 if (TraceJumps) { | |
| 1249 // Move target to register that is recordable | |
| 1250 __ mov(Lscratch, G3_scratch); | |
| 1251 __ JMP(G3_scratch, 0); | |
| 1252 } else { | |
| 1253 __ jmp(Lscratch, 0); | |
| 1254 } | |
| 1255 __ delayed()->nop(); | |
| 1256 | |
| 1257 | |
| 1258 if (inc_counter) { | |
| 1259 // handle invocation counter overflow | |
| 1260 __ bind(invocation_counter_overflow); | |
| 1261 generate_counter_overflow(Lcontinue); | |
| 1262 } | |
| 1263 | |
| 1264 | |
| 1265 | |
| 1266 return entry; | |
| 1267 } | |
| 1268 | |
| 1269 | |
| 1270 // Generic method entry to (asm) interpreter | |
| 1271 //------------------------------------------------------------------------------------------------------------------------ | |
| 1272 // | |
| 1273 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
| 1274 address entry = __ pc(); | |
| 1275 | |
| 1276 bool inc_counter = UseCompiler || CountCompiledCalls; | |
| 1277 | |
| 1278 // the following temporary registers are used during frame creation | |
| 1279 const Register Gtmp1 = G3_scratch ; | |
| 1280 const Register Gtmp2 = G1_scratch; | |
| 1281 | |
| 1282 // make sure registers are different! | |
| 1283 assert_different_registers(G2_thread, G5_method, Gargs, Gtmp1, Gtmp2); | |
| 1284 | |
|
7402
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
1285 const Address constMethod (G5_method, Method::const_offset()); |
| 0 | 1286 // Seems like G5_method is live at the point this is used. So we could make this look consistent |
| 1287 // and use in the asserts. | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1288 const Address access_flags (Lmethod, Method::access_flags_offset()); |
| 0 | 1289 |
| 1290 const Register Glocals_size = G3; | |
| 1291 assert_different_registers(Glocals_size, G4_scratch, Gframe_size); | |
| 1292 | |
| 1293 // make sure method is not native & not abstract | |
| 1294 // rethink these assertions - they can be simplified and shared (gri 2/25/2000) | |
| 1295 #ifdef ASSERT | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1296 __ ld(G5_method, Method::access_flags_offset(), Gtmp1); |
| 0 | 1297 { |
| 1298 Label L; | |
| 1299 __ btst(JVM_ACC_NATIVE, Gtmp1); | |
| 1300 __ br(Assembler::zero, false, Assembler::pt, L); | |
| 1301 __ delayed()->nop(); | |
| 1302 __ stop("tried to execute native method as non-native"); | |
| 1303 __ bind(L); | |
| 1304 } | |
| 1305 { Label L; | |
| 1306 __ btst(JVM_ACC_ABSTRACT, Gtmp1); | |
| 1307 __ br(Assembler::zero, false, Assembler::pt, L); | |
| 1308 __ delayed()->nop(); | |
| 1309 __ stop("tried to execute abstract method as non-abstract"); | |
| 1310 __ bind(L); | |
| 1311 } | |
| 1312 #endif // ASSERT | |
| 1313 | |
| 1314 // generate the code to allocate the interpreter stack frame | |
| 1315 | |
| 1316 generate_fixed_frame(false); | |
| 1317 | |
| 1318 #ifdef FAST_DISPATCH | |
| 1319 __ set((intptr_t)Interpreter::dispatch_table(), IdispatchTables); | |
| 1320 // set bytecode dispatch table base | |
| 1321 #endif | |
| 1322 | |
| 1323 // | |
| 1324 // Code to initialize the extra (i.e. non-parm) locals | |
| 1325 // | |
| 1326 Register init_value = noreg; // will be G0 if we must clear locals | |
| 1327 // The way the code was setup before zerolocals was always true for vanilla java entries. | |
| 1328 // It could only be false for the specialized entries like accessor or empty which have | |
| 1329 // no extra locals so the testing was a waste of time and the extra locals were always | |
| 1330 // initialized. We removed this extra complication to already over complicated code. | |
| 1331 | |
| 1332 init_value = G0; | |
| 1333 Label clear_loop; | |
| 1334 | |
|
7402
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
1335 const Register RconstMethod = O1; |
|
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
1336 const Address size_of_parameters(RconstMethod, ConstMethod::size_of_parameters_offset()); |
|
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
1337 const Address size_of_locals (RconstMethod, ConstMethod::size_of_locals_offset()); |
|
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
1338 |
| 0 | 1339 // NOTE: If you change the frame layout, this code will need to |
| 1340 // be updated! | |
|
7402
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
1341 __ ld_ptr( constMethod, RconstMethod ); |
| 0 | 1342 __ lduh( size_of_locals, O2 ); |
| 1343 __ lduh( size_of_parameters, O1 ); | |
| 1506 | 1344 __ sll( O2, Interpreter::logStackElementSize, O2); |
| 1345 __ sll( O1, Interpreter::logStackElementSize, O1 ); | |
| 0 | 1346 __ sub( Llocals, O2, O2 ); |
| 1347 __ sub( Llocals, O1, O1 ); | |
| 1348 | |
| 1349 __ bind( clear_loop ); | |
| 1350 __ inc( O2, wordSize ); | |
| 1351 | |
| 1352 __ cmp( O2, O1 ); | |
| 1353 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, clear_loop ); | |
| 1354 __ delayed()->st_ptr( init_value, O2, 0 ); | |
| 1355 | |
| 727 | 1356 const Address do_not_unlock_if_synchronized(G2_thread, |
| 1357 JavaThread::do_not_unlock_if_synchronized_offset()); | |
| 0 | 1358 // Since at this point in the method invocation the exception handler |
| 1359 // would try to exit the monitor of synchronized methods which hasn't | |
| 1360 // been entered yet, we set the thread local variable | |
| 1361 // _do_not_unlock_if_synchronized to true. If any exception was thrown by | |
| 1362 // runtime, exception handling i.e. unlock_if_synchronized_method will | |
| 1363 // check this thread local flag. | |
| 1364 __ movbool(true, G3_scratch); | |
| 1365 __ stbool(G3_scratch, do_not_unlock_if_synchronized); | |
| 1366 | |
| 14260 | 1367 __ profile_parameters_type(G1_scratch, G3_scratch, G4_scratch, Lscratch); |
| 0 | 1368 // increment invocation counter and check for overflow |
| 1369 // | |
| 1370 // Note: checking for negative value instead of overflow | |
| 1371 // so we have a 'sticky' overflow test (may be of | |
| 1372 // importance as soon as we have true MT/MP) | |
| 1373 Label invocation_counter_overflow; | |
| 1374 Label profile_method; | |
| 1375 Label profile_method_continue; | |
| 1376 Label Lcontinue; | |
| 1377 if (inc_counter) { | |
| 1378 generate_counter_incr(&invocation_counter_overflow, &profile_method, &profile_method_continue); | |
| 1379 if (ProfileInterpreter) { | |
| 1380 __ bind(profile_method_continue); | |
| 1381 } | |
| 1382 } | |
| 1383 __ bind(Lcontinue); | |
| 1384 | |
| 1385 bang_stack_shadow_pages(false); | |
| 1386 | |
| 1387 // reset the _do_not_unlock_if_synchronized flag | |
| 1388 __ stbool(G0, do_not_unlock_if_synchronized); | |
| 1389 | |
| 1390 // check for synchronized methods | |
| 1391 // Must happen AFTER invocation_counter check and stack overflow check, | |
| 1392 // so method is not locked if overflows. | |
| 1393 | |
| 1394 if (synchronized) { | |
| 1395 lock_method(); | |
| 1396 } else { | |
| 1397 #ifdef ASSERT | |
| 1398 { Label ok; | |
| 1399 __ ld(access_flags, O0); | |
| 1400 __ btst(JVM_ACC_SYNCHRONIZED, O0); | |
| 1401 __ br( Assembler::zero, false, Assembler::pt, ok); | |
| 1402 __ delayed()->nop(); | |
| 1403 __ stop("method needs synchronization"); | |
| 1404 __ bind(ok); | |
| 1405 } | |
| 1406 #endif // ASSERT | |
| 1407 } | |
| 1408 | |
| 1409 // start execution | |
| 1410 | |
| 1411 __ verify_thread(); | |
| 1412 | |
| 1413 // jvmti support | |
| 1414 __ notify_method_entry(); | |
| 1415 | |
| 1416 // start executing instructions | |
| 1417 __ dispatch_next(vtos); | |
| 1418 | |
| 1419 | |
| 1420 if (inc_counter) { | |
| 1421 if (ProfileInterpreter) { | |
| 1422 // We have decided to profile this method in the interpreter | |
| 1423 __ bind(profile_method); | |
| 1424 | |
|
2118
dd031b2226de
4930919: race condition in MDO creation at back branch locations
iveresov
parents:
1972
diff
changeset
|
1425 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
|
dd031b2226de
4930919: race condition in MDO creation at back branch locations
iveresov
parents:
1972
diff
changeset
|
1426 __ set_method_data_pointer_for_bcp(); |
| 3839 | 1427 __ ba_short(profile_method_continue); |
| 0 | 1428 } |
| 1429 | |
| 1430 // handle invocation counter overflow | |
| 1431 __ bind(invocation_counter_overflow); | |
| 1432 generate_counter_overflow(Lcontinue); | |
| 1433 } | |
| 1434 | |
| 1435 | |
| 1436 return entry; | |
| 1437 } | |
| 1438 | |
| 1439 | |
| 1440 //---------------------------------------------------------------------------------------------------- | |
| 1441 // Entry points & stack frame layout | |
| 1442 // | |
| 1443 // Here we generate the various kind of entries into the interpreter. | |
| 1444 // The two main entry type are generic bytecode methods and native call method. | |
| 1445 // These both come in synchronized and non-synchronized versions but the | |
| 1446 // frame layout they create is very similar. The other method entry | |
| 1447 // types are really just special purpose entries that are really entry | |
| 1448 // and interpretation all in one. These are for trivial methods like | |
| 1449 // accessor, empty, or special math methods. | |
| 1450 // | |
| 1451 // When control flow reaches any of the entry types for the interpreter | |
| 1452 // the following holds -> | |
| 1453 // | |
| 1454 // C2 Calling Conventions: | |
| 1455 // | |
| 1456 // The entry code below assumes that the following registers are set | |
| 1457 // when coming in: | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1458 // G5_method: holds the Method* of the method to call |
| 0 | 1459 // Lesp: points to the TOS of the callers expression stack |
| 1460 // after having pushed all the parameters | |
| 1461 // | |
| 1462 // The entry code does the following to setup an interpreter frame | |
| 1463 // pop parameters from the callers stack by adjusting Lesp | |
| 1464 // set O0 to Lesp | |
| 1465 // compute X = (max_locals - num_parameters) | |
| 1466 // bump SP up by X to accomadate the extra locals | |
| 1467 // compute X = max_expression_stack | |
| 1468 // + vm_local_words | |
| 1469 // + 16 words of register save area | |
| 1470 // save frame doing a save sp, -X, sp growing towards lower addresses | |
| 1471 // set Lbcp, Lmethod, LcpoolCache | |
| 1472 // set Llocals to i0 | |
| 1473 // set Lmonitors to FP - rounded_vm_local_words | |
| 1474 // set Lesp to Lmonitors - 4 | |
| 1475 // | |
| 1476 // The frame has now been setup to do the rest of the entry code | |
| 1477 | |
| 1478 // Try this optimization: Most method entries could live in a | |
| 1479 // "one size fits all" stack frame without all the dynamic size | |
| 1480 // calculations. It might be profitable to do all this calculation | |
| 1481 // statically and approximately for "small enough" methods. | |
| 1482 | |
| 1483 //----------------------------------------------------------------------------------------------- | |
| 1484 | |
| 1485 // C1 Calling conventions | |
| 1486 // | |
| 1487 // Upon method entry, the following registers are setup: | |
| 1488 // | |
| 1489 // g2 G2_thread: current thread | |
| 1490 // g5 G5_method: method to activate | |
| 1491 // g4 Gargs : pointer to last argument | |
| 1492 // | |
| 1493 // | |
| 1494 // Stack: | |
| 1495 // | |
| 1496 // +---------------+ <--- sp | |
| 1497 // | | | |
| 1498 // : reg save area : | |
| 1499 // | | | |
| 1500 // +---------------+ <--- sp + 0x40 | |
| 1501 // | | | |
| 1502 // : extra 7 slots : note: these slots are not really needed for the interpreter (fix later) | |
| 1503 // | | | |
| 1504 // +---------------+ <--- sp + 0x5c | |
| 1505 // | | | |
| 1506 // : free : | |
| 1507 // | | | |
| 1508 // +---------------+ <--- Gargs | |
| 1509 // | | | |
| 1510 // : arguments : | |
| 1511 // | | | |
| 1512 // +---------------+ | |
| 1513 // | | | |
| 1514 // | |
| 1515 // | |
| 1516 // | |
| 1517 // AFTER FRAME HAS BEEN SETUP for method interpretation the stack looks like: | |
| 1518 // | |
| 1519 // +---------------+ <--- sp | |
| 1520 // | | | |
| 1521 // : reg save area : | |
| 1522 // | | | |
| 1523 // +---------------+ <--- sp + 0x40 | |
| 1524 // | | | |
| 1525 // : extra 7 slots : note: these slots are not really needed for the interpreter (fix later) | |
| 1526 // | | | |
| 1527 // +---------------+ <--- sp + 0x5c | |
| 1528 // | | | |
| 1529 // : : | |
| 1530 // | | <--- Lesp | |
| 1531 // +---------------+ <--- Lmonitors (fp - 0x18) | |
| 1532 // | VM locals | | |
| 1533 // +---------------+ <--- fp | |
| 1534 // | | | |
| 1535 // : reg save area : | |
| 1536 // | | | |
| 1537 // +---------------+ <--- fp + 0x40 | |
| 1538 // | | | |
| 1539 // : extra 7 slots : note: these slots are not really needed for the interpreter (fix later) | |
| 1540 // | | | |
| 1541 // +---------------+ <--- fp + 0x5c | |
| 1542 // | | | |
| 1543 // : free : | |
| 1544 // | | | |
| 1545 // +---------------+ | |
| 1546 // | | | |
| 1547 // : nonarg locals : | |
| 1548 // | | | |
| 1549 // +---------------+ | |
| 1550 // | | | |
| 1551 // : arguments : | |
| 1552 // | | <--- Llocals | |
| 1553 // +---------------+ <--- Gargs | |
| 1554 // | | | |
| 1555 | |
| 1556 static int size_activation_helper(int callee_extra_locals, int max_stack, int monitor_size) { | |
| 1557 | |
| 1558 // Figure out the size of an interpreter frame (in words) given that we have a fully allocated | |
| 1559 // expression stack, the callee will have callee_extra_locals (so we can account for | |
| 1560 // frame extension) and monitor_size for monitors. Basically we need to calculate | |
| 1561 // this exactly like generate_fixed_frame/generate_compute_interpreter_state. | |
| 1562 // | |
| 1563 // | |
| 1564 // The big complicating thing here is that we must ensure that the stack stays properly | |
| 1565 // aligned. This would be even uglier if monitor size wasn't modulo what the stack | |
| 1566 // needs to be aligned for). We are given that the sp (fp) is already aligned by | |
| 1567 // the caller so we must ensure that it is properly aligned for our callee. | |
| 1568 // | |
| 1569 const int rounded_vm_local_words = | |
| 1570 round_to(frame::interpreter_frame_vm_local_words,WordsPerLong); | |
| 1571 // callee_locals and max_stack are counts, not the size in frame. | |
| 1572 const int locals_size = | |
| 1506 | 1573 round_to(callee_extra_locals * Interpreter::stackElementWords, WordsPerLong); |
| 1574 const int max_stack_words = max_stack * Interpreter::stackElementWords; | |
| 0 | 1575 return (round_to((max_stack_words |
| 1576 + rounded_vm_local_words | |
| 1577 + frame::memory_parameter_word_sp_offset), WordsPerLong) | |
| 1578 // already rounded | |
| 1579 + locals_size + monitor_size); | |
| 1580 } | |
| 1581 | |
| 1582 // How much stack a method top interpreter activation needs in words. | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1583 int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
| 0 | 1584 |
| 1585 // See call_stub code | |
| 1586 int call_stub_size = round_to(7 + frame::memory_parameter_word_sp_offset, | |
| 1587 WordsPerLong); // 7 + register save area | |
| 1588 | |
| 1589 // Save space for one monitor to get into the interpreted method in case | |
| 1590 // the method is synchronized | |
| 1591 int monitor_size = method->is_synchronized() ? | |
| 1592 1*frame::interpreter_frame_monitor_size() : 0; | |
| 1593 return size_activation_helper(method->max_locals(), method->max_stack(), | |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1594 monitor_size) + call_stub_size; |
| 0 | 1595 } |
| 1596 | |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1597 int AbstractInterpreter::size_activation(int max_stack, |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1598 int temps, |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1599 int extra_args, |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1600 int monitors, |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1601 int callee_params, |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1602 int callee_locals, |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1603 bool is_top_frame) { |
| 0 | 1604 // Note: This calculation must exactly parallel the frame setup |
| 1605 // in InterpreterGenerator::generate_fixed_frame. | |
| 1606 | |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1607 int monitor_size = monitors * frame::interpreter_frame_monitor_size(); |
| 0 | 1608 |
| 1609 assert(monitor_size == round_to(monitor_size, WordsPerLong), "must align"); | |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1610 |
| 0 | 1611 // |
| 1612 // Note: if you look closely this appears to be doing something much different | |
| 1613 // than generate_fixed_frame. What is happening is this. On sparc we have to do | |
| 1614 // this dance with interpreter_sp_adjustment because the window save area would | |
| 1615 // appear just below the bottom (tos) of the caller's java expression stack. Because | |
| 1616 // the interpreter want to have the locals completely contiguous generate_fixed_frame | |
| 1617 // will adjust the caller's sp for the "extra locals" (max_locals - parameter_size). | |
| 1618 // Now in generate_fixed_frame the extension of the caller's sp happens in the callee. | |
| 1619 // In this code the opposite occurs the caller adjusts it's own stack base on the callee. | |
| 1620 // This is mostly ok but it does cause a problem when we get to the initial frame (the oldest) | |
| 1621 // because the oldest frame would have adjust its callers frame and yet that frame | |
| 1622 // already exists and isn't part of this array of frames we are unpacking. So at first | |
| 1623 // glance this would seem to mess up that frame. However Deoptimization::fetch_unroll_info_helper() | |
| 1624 // will after it calculates all of the frame's on_stack_size()'s will then figure out the | |
| 1625 // amount to adjust the caller of the initial (oldest) frame and the calculation will all | |
| 1626 // add up. It does seem like it simpler to account for the adjustment here (and remove the | |
| 1627 // callee... parameters here). However this would mean that this routine would have to take | |
| 1628 // the caller frame as input so we could adjust its sp (and set it's interpreter_sp_adjustment) | |
| 1629 // and run the calling loop in the reverse order. This would also would appear to mean making | |
| 1630 // this code aware of what the interactions are when that initial caller fram was an osr or | |
| 1631 // other adapter frame. deoptimization is complicated enough and hard enough to debug that | |
| 1632 // there is no sense in messing working code. | |
| 1633 // | |
| 1634 | |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1635 int rounded_cls = round_to((callee_locals - callee_params), WordsPerLong); |
| 0 | 1636 assert(rounded_cls == round_to(rounded_cls, WordsPerLong), "must align"); |
| 1637 | |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1638 int raw_frame_size = size_activation_helper(rounded_cls, max_stack, monitor_size); |
| 0 | 1639 |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1640 return raw_frame_size; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1641 } |
| 0 | 1642 |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1643 void AbstractInterpreter::layout_activation(Method* method, |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1644 int tempcount, |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1645 int popframe_extra_args, |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1646 int moncount, |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1647 int caller_actual_parameters, |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1648 int callee_param_count, |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1649 int callee_local_count, |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1650 frame* caller, |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1651 frame* interpreter_frame, |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1652 bool is_top_frame, |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1653 bool is_bottom_frame) { |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1654 // Set up the following variables: |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1655 // - Lmethod |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1656 // - Llocals |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1657 // - Lmonitors (to the indicated number of monitors) |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1658 // - Lesp (to the indicated number of temps) |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1659 // The frame caller on entry is a description of the caller of the |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1660 // frame we are about to layout. We are guaranteed that we will be |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1661 // able to fill in a new interpreter frame as its callee (i.e. the |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1662 // stack space is allocated and the amount was determined by an |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1663 // earlier call to the size_activation() method). On return caller |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1664 // while describe the interpreter frame we just layed out. |
| 0 | 1665 |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1666 // The skeleton frame must already look like an interpreter frame |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1667 // even if not fully filled out. |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1668 assert(interpreter_frame->is_interpreted_frame(), "Must be interpreted frame"); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1669 |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1670 int rounded_vm_local_words = round_to(frame::interpreter_frame_vm_local_words,WordsPerLong); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1671 int monitor_size = moncount * frame::interpreter_frame_monitor_size(); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1672 assert(monitor_size == round_to(monitor_size, WordsPerLong), "must align"); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1673 |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1674 intptr_t* fp = interpreter_frame->fp(); |
| 0 | 1675 |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1676 JavaThread* thread = JavaThread::current(); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1677 RegisterMap map(thread, false); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1678 // More verification that skeleton frame is properly walkable |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1679 assert(fp == caller->sp(), "fp must match"); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1680 |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1681 intptr_t* montop = fp - rounded_vm_local_words; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1682 |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1683 // preallocate monitors (cf. __ add_monitor_to_stack) |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1684 intptr_t* monitors = montop - monitor_size; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1685 |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1686 // preallocate stack space |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1687 intptr_t* esp = monitors - 1 - |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1688 (tempcount * Interpreter::stackElementWords) - |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1689 popframe_extra_args; |
| 0 | 1690 |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1691 int local_words = method->max_locals() * Interpreter::stackElementWords; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1692 NEEDS_CLEANUP; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1693 intptr_t* locals; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1694 if (caller->is_interpreted_frame()) { |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1695 // Can force the locals area to end up properly overlapping the top of the expression stack. |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1696 intptr_t* Lesp_ptr = caller->interpreter_frame_tos_address() - 1; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1697 // Note that this computation means we replace size_of_parameters() values from the caller |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1698 // interpreter frame's expression stack with our argument locals |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1699 int parm_words = caller_actual_parameters * Interpreter::stackElementWords; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1700 locals = Lesp_ptr + parm_words; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1701 int delta = local_words - parm_words; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1702 int computed_sp_adjustment = (delta > 0) ? round_to(delta, WordsPerLong) : 0; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1703 *interpreter_frame->register_addr(I5_savedSP) = (intptr_t) (fp + computed_sp_adjustment) - STACK_BIAS; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1704 if (!is_bottom_frame) { |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1705 // Llast_SP is set below for the current frame to SP (with the |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1706 // extra space for the callee's locals). Here we adjust |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1707 // Llast_SP for the caller's frame, removing the extra space |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1708 // for the current method's locals. |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1709 *caller->register_addr(Llast_SP) = *interpreter_frame->register_addr(I5_savedSP); |
| 0 | 1710 } else { |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1711 assert(*caller->register_addr(Llast_SP) >= *interpreter_frame->register_addr(I5_savedSP), "strange Llast_SP"); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1712 } |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1713 } else { |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1714 assert(caller->is_compiled_frame() || caller->is_entry_frame(), "only possible cases"); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1715 // Don't have Lesp available; lay out locals block in the caller |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1716 // adjacent to the register window save area. |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1717 // |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1718 // Compiled frames do not allocate a varargs area which is why this if |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1719 // statement is needed. |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1720 // |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1721 if (caller->is_compiled_frame()) { |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1722 locals = fp + frame::register_save_words + local_words - 1; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1723 } else { |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1724 locals = fp + frame::memory_parameter_word_sp_offset + local_words - 1; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1725 } |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1726 if (!caller->is_entry_frame()) { |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1727 // Caller wants his own SP back |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1728 int caller_frame_size = caller->cb()->frame_size(); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1729 *interpreter_frame->register_addr(I5_savedSP) = (intptr_t)(caller->fp() - caller_frame_size) - STACK_BIAS; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1730 } |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1731 } |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1732 if (TraceDeoptimization) { |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1733 if (caller->is_entry_frame()) { |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1734 // make sure I5_savedSP and the entry frames notion of saved SP |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1735 // agree. This assertion duplicate a check in entry frame code |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1736 // but catches the failure earlier. |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1737 assert(*caller->register_addr(Lscratch) == *interpreter_frame->register_addr(I5_savedSP), |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1738 "would change callers SP"); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1739 } |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1740 if (caller->is_entry_frame()) { |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1741 tty->print("entry "); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1742 } |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1743 if (caller->is_compiled_frame()) { |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1744 tty->print("compiled "); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1745 if (caller->is_deoptimized_frame()) { |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1746 tty->print("(deopt) "); |
| 0 | 1747 } |
| 1748 } | |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1749 if (caller->is_interpreted_frame()) { |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1750 tty->print("interpreted "); |
| 0 | 1751 } |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1752 tty->print_cr("caller fp=0x%x sp=0x%x", caller->fp(), caller->sp()); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1753 tty->print_cr("save area = 0x%x, 0x%x", caller->sp(), caller->sp() + 16); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1754 tty->print_cr("save area = 0x%x, 0x%x", caller->fp(), caller->fp() + 16); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1755 tty->print_cr("interpreter fp=0x%x sp=0x%x", interpreter_frame->fp(), interpreter_frame->sp()); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1756 tty->print_cr("save area = 0x%x, 0x%x", interpreter_frame->sp(), interpreter_frame->sp() + 16); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1757 tty->print_cr("save area = 0x%x, 0x%x", interpreter_frame->fp(), interpreter_frame->fp() + 16); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1758 tty->print_cr("Llocals = 0x%x", locals); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1759 tty->print_cr("Lesp = 0x%x", esp); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1760 tty->print_cr("Lmonitors = 0x%x", monitors); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1761 } |
| 0 | 1762 |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1763 if (method->max_locals() > 0) { |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1764 assert(locals < caller->sp() || locals >= (caller->sp() + 16), "locals in save area"); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1765 assert(locals < caller->fp() || locals > (caller->fp() + 16), "locals in save area"); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1766 assert(locals < interpreter_frame->sp() || locals > (interpreter_frame->sp() + 16), "locals in save area"); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1767 assert(locals < interpreter_frame->fp() || locals >= (interpreter_frame->fp() + 16), "locals in save area"); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1768 } |
| 0 | 1769 #ifdef _LP64 |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1770 assert(*interpreter_frame->register_addr(I5_savedSP) & 1, "must be odd"); |
| 0 | 1771 #endif |
| 1772 | |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1773 *interpreter_frame->register_addr(Lmethod) = (intptr_t) method; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1774 *interpreter_frame->register_addr(Llocals) = (intptr_t) locals; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1775 *interpreter_frame->register_addr(Lmonitors) = (intptr_t) monitors; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1776 *interpreter_frame->register_addr(Lesp) = (intptr_t) esp; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1777 // Llast_SP will be same as SP as there is no adapter space |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1778 *interpreter_frame->register_addr(Llast_SP) = (intptr_t) interpreter_frame->sp() - STACK_BIAS; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1779 *interpreter_frame->register_addr(LcpoolCache) = (intptr_t) method->constants()->cache(); |
| 0 | 1780 #ifdef FAST_DISPATCH |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1781 *interpreter_frame->register_addr(IdispatchTables) = (intptr_t) Interpreter::dispatch_table(); |
| 0 | 1782 #endif |
| 1783 | |
| 1784 | |
| 1785 #ifdef ASSERT | |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1786 BasicObjectLock* mp = (BasicObjectLock*)monitors; |
| 0 | 1787 |
|
17980
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1788 assert(interpreter_frame->interpreter_frame_method() == method, "method matches"); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1789 assert(interpreter_frame->interpreter_frame_local_at(9) == (intptr_t *)((intptr_t)locals - (9 * Interpreter::stackElementSize)), "locals match"); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1790 assert(interpreter_frame->interpreter_frame_monitor_end() == mp, "monitor_end matches"); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1791 assert(((intptr_t *)interpreter_frame->interpreter_frame_monitor_begin()) == ((intptr_t *)mp)+monitor_size, "monitor_begin matches"); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1792 assert(interpreter_frame->interpreter_frame_tos_address()-1 == esp, "esp matches"); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1793 |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1794 // check bounds |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1795 intptr_t* lo = interpreter_frame->sp() + (frame::memory_parameter_word_sp_offset - 1); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1796 intptr_t* hi = interpreter_frame->fp() - rounded_vm_local_words; |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1797 assert(lo < monitors && montop <= hi, "monitors in bounds"); |
|
0bf37f737702
8032410: compiler/uncommontrap/TestStackBangRbp.java times out on Solaris-Sparc V9
roland
parents:
17850
diff
changeset
|
1798 assert(lo <= esp && esp < monitors, "esp in bounds"); |
| 0 | 1799 #endif // ASSERT |
| 1800 } | |
| 1801 | |
| 1802 //---------------------------------------------------------------------------------------------------- | |
| 1803 // Exceptions | |
| 1804 void TemplateInterpreterGenerator::generate_throw_exception() { | |
| 1805 | |
| 1806 // Entry point in previous activation (i.e., if the caller was interpreted) | |
| 1807 Interpreter::_rethrow_exception_entry = __ pc(); | |
| 1808 // O0: exception | |
| 1809 | |
| 1810 // entry point for exceptions thrown within interpreter code | |
| 1811 Interpreter::_throw_exception_entry = __ pc(); | |
| 1812 __ verify_thread(); | |
| 1813 // expression stack is undefined here | |
| 1814 // O0: exception, i.e. Oexception | |
| 1815 // Lbcp: exception bcx | |
| 1816 __ verify_oop(Oexception); | |
| 1817 | |
| 1818 | |
| 1819 // expression stack must be empty before entering the VM in case of an exception | |
| 1820 __ empty_expression_stack(); | |
| 1821 // find exception handler address and preserve exception oop | |
| 1822 // call C routine to find handler and jump to it | |
| 1823 __ call_VM(O1, CAST_FROM_FN_PTR(address, InterpreterRuntime::exception_handler_for_exception), Oexception); | |
| 1824 __ push_ptr(O1); // push exception for exception handler bytecodes | |
| 1825 | |
| 1826 __ JMP(O0, 0); // jump to exception handler (may be remove activation entry!) | |
| 1827 __ delayed()->nop(); | |
| 1828 | |
| 1829 | |
| 1830 // if the exception is not handled in the current frame | |
| 1831 // the frame is removed and the exception is rethrown | |
| 1832 // (i.e. exception continuation is _rethrow_exception) | |
| 1833 // | |
| 1834 // Note: At this point the bci is still the bxi for the instruction which caused | |
| 1835 // the exception and the expression stack is empty. Thus, for any VM calls | |
| 1836 // at this point, GC will find a legal oop map (with empty expression stack). | |
| 1837 | |
| 1838 // in current activation | |
| 1839 // tos: exception | |
| 1840 // Lbcp: exception bcp | |
| 1841 | |
| 1842 // | |
| 1843 // JVMTI PopFrame support | |
| 1844 // | |
| 1845 | |
| 1846 Interpreter::_remove_activation_preserving_args_entry = __ pc(); | |
| 727 | 1847 Address popframe_condition_addr(G2_thread, JavaThread::popframe_condition_offset()); |
| 0 | 1848 // Set the popframe_processing bit in popframe_condition indicating that we are |
| 1849 // currently handling popframe, so that call_VMs that may happen later do not trigger new | |
| 1850 // popframe handling cycles. | |
| 1851 | |
| 1852 __ ld(popframe_condition_addr, G3_scratch); | |
| 1853 __ or3(G3_scratch, JavaThread::popframe_processing_bit, G3_scratch); | |
| 1854 __ stw(G3_scratch, popframe_condition_addr); | |
| 1855 | |
| 1856 // Empty the expression stack, as in normal exception handling | |
| 1857 __ empty_expression_stack(); | |
| 1858 __ unlock_if_synchronized_method(vtos, /* throw_monitor_exception */ false, /* install_monitor_exception */ false); | |
| 1859 | |
| 1860 { | |
| 1861 // Check to see whether we are returning to a deoptimized frame. | |
| 1862 // (The PopFrame call ensures that the caller of the popped frame is | |
| 1863 // either interpreted or compiled and deoptimizes it if compiled.) | |
| 1864 // In this case, we can't call dispatch_next() after the frame is | |
| 1865 // popped, but instead must save the incoming arguments and restore | |
| 1866 // them after deoptimization has occurred. | |
| 1867 // | |
| 1868 // Note that we don't compare the return PC against the | |
| 1869 // deoptimization blob's unpack entry because of the presence of | |
| 1870 // adapter frames in C2. | |
| 1871 Label caller_not_deoptimized; | |
| 1872 __ call_VM_leaf(L7_thread_cache, CAST_FROM_FN_PTR(address, InterpreterRuntime::interpreter_contains), I7); | |
| 3839 | 1873 __ br_notnull_short(O0, Assembler::pt, caller_not_deoptimized); |
| 0 | 1874 |
| 1875 const Register Gtmp1 = G3_scratch; | |
| 1876 const Register Gtmp2 = G1_scratch; | |
|
7402
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
1877 const Register RconstMethod = Gtmp1; |
|
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
1878 const Address constMethod(Lmethod, Method::const_offset()); |
|
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
1879 const Address size_of_parameters(RconstMethod, ConstMethod::size_of_parameters_offset()); |
| 0 | 1880 |
| 1881 // Compute size of arguments for saving when returning to deoptimized caller | |
|
7402
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
1882 __ ld_ptr(constMethod, RconstMethod); |
|
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7206
diff
changeset
|
1883 __ lduh(size_of_parameters, Gtmp1); |
| 1506 | 1884 __ sll(Gtmp1, Interpreter::logStackElementSize, Gtmp1); |
| 0 | 1885 __ sub(Llocals, Gtmp1, Gtmp2); |
| 1886 __ add(Gtmp2, wordSize, Gtmp2); | |
| 1887 // Save these arguments | |
| 1888 __ call_VM_leaf(L7_thread_cache, CAST_FROM_FN_PTR(address, Deoptimization::popframe_preserve_args), G2_thread, Gtmp1, Gtmp2); | |
| 1889 // Inform deoptimization that it is responsible for restoring these arguments | |
| 1890 __ set(JavaThread::popframe_force_deopt_reexecution_bit, Gtmp1); | |
| 727 | 1891 Address popframe_condition_addr(G2_thread, JavaThread::popframe_condition_offset()); |
| 0 | 1892 __ st(Gtmp1, popframe_condition_addr); |
| 1893 | |
| 1894 // Return from the current method | |
| 1895 // The caller's SP was adjusted upon method entry to accomodate | |
| 1896 // the callee's non-argument locals. Undo that adjustment. | |
| 1897 __ ret(); | |
| 1898 __ delayed()->restore(I5_savedSP, G0, SP); | |
| 1899 | |
| 1900 __ bind(caller_not_deoptimized); | |
| 1901 } | |
| 1902 | |
| 1903 // Clear the popframe condition flag | |
| 1904 __ stw(G0 /* popframe_inactive */, popframe_condition_addr); | |
| 1905 | |
| 1906 // Get out of the current method (how this is done depends on the particular compiler calling | |
| 1907 // convention that the interpreter currently follows) | |
| 1908 // The caller's SP was adjusted upon method entry to accomodate | |
| 1909 // the callee's non-argument locals. Undo that adjustment. | |
| 1910 __ restore(I5_savedSP, G0, SP); | |
| 1911 // The method data pointer was incremented already during | |
| 1912 // call profiling. We have to restore the mdp for the current bcp. | |
| 1913 if (ProfileInterpreter) { | |
| 1914 __ set_method_data_pointer_for_bcp(); | |
| 1915 } | |
|
12010
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1916 |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1917 #if INCLUDE_JVMTI |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1918 if (EnableInvokeDynamic) { |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1919 Label L_done; |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1920 |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1921 __ ldub(Address(Lbcp, 0), G1_scratch); // Load current bytecode |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1922 __ cmp_and_br_short(G1_scratch, Bytecodes::_invokestatic, Assembler::notEqual, Assembler::pn, L_done); |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1923 |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1924 // The member name argument must be restored if _invokestatic is re-executed after a PopFrame call. |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1925 // Detect such a case in the InterpreterRuntime function and return the member name argument, or NULL. |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1926 |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1927 __ call_VM(G1_scratch, CAST_FROM_FN_PTR(address, InterpreterRuntime::member_name_arg_or_null), I0, Lmethod, Lbcp); |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1928 |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1929 __ br_null(G1_scratch, false, Assembler::pn, L_done); |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1930 __ delayed()->nop(); |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1931 |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1932 __ st_ptr(G1_scratch, Lesp, wordSize); |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1933 __ bind(L_done); |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1934 } |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1935 #endif // INCLUDE_JVMTI |
|
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10997
diff
changeset
|
1936 |
| 0 | 1937 // Resume bytecode interpretation at the current bcp |
| 1938 __ dispatch_next(vtos); | |
| 1939 // end of JVMTI PopFrame support | |
| 1940 | |
| 1941 Interpreter::_remove_activation_entry = __ pc(); | |
| 1942 | |
| 1943 // preserve exception over this code sequence (remove activation calls the vm, but oopmaps are not correct here) | |
| 1944 __ pop_ptr(Oexception); // get exception | |
| 1945 | |
| 1946 // Intel has the following comment: | |
| 1947 //// remove the activation (without doing throws on illegalMonitorExceptions) | |
| 1948 // They remove the activation without checking for bad monitor state. | |
| 1949 // %%% We should make sure this is the right semantics before implementing. | |
| 1950 | |
| 1951 __ set_vm_result(Oexception); | |
| 1952 __ unlock_if_synchronized_method(vtos, /* throw_monitor_exception */ false); | |
| 1953 | |
| 1954 __ notify_method_exit(false, vtos, InterpreterMacroAssembler::SkipNotifyJVMTI); | |
| 1955 | |
| 1956 __ get_vm_result(Oexception); | |
| 1957 __ verify_oop(Oexception); | |
| 1958 | |
| 1959 const int return_reg_adjustment = frame::pc_return_offset; | |
| 727 | 1960 Address issuing_pc_addr(I7, return_reg_adjustment); |
| 0 | 1961 |
| 1962 // We are done with this activation frame; find out where to go next. | |
| 1963 // The continuation point will be an exception handler, which expects | |
| 1964 // the following registers set up: | |
| 1965 // | |
| 1966 // Oexception: exception | |
| 1967 // Oissuing_pc: the local call that threw exception | |
| 1968 // Other On: garbage | |
| 1969 // In/Ln: the contents of the caller's register window | |
| 1970 // | |
| 1971 // We do the required restore at the last possible moment, because we | |
| 1972 // need to preserve some state across a runtime call. | |
| 1973 // (Remember that the caller activation is unknown--it might not be | |
| 1974 // interpreted, so things like Lscratch are useless in the caller.) | |
| 1975 | |
| 1976 // Although the Intel version uses call_C, we can use the more | |
| 1977 // compact call_VM. (The only real difference on SPARC is a | |
| 1978 // harmlessly ignored [re]set_last_Java_frame, compared with | |
| 1979 // the Intel code which lacks this.) | |
| 1980 __ mov(Oexception, Oexception ->after_save()); // get exception in I0 so it will be on O0 after restore | |
| 1981 __ add(issuing_pc_addr, Oissuing_pc->after_save()); // likewise set I1 to a value local to the caller | |
| 1982 __ super_call_VM_leaf(L7_thread_cache, | |
| 1983 CAST_FROM_FN_PTR(address, SharedRuntime::exception_handler_for_return_address), | |
| 1295 | 1984 G2_thread, Oissuing_pc->after_save()); |
| 0 | 1985 |
| 1986 // The caller's SP was adjusted upon method entry to accomodate | |
| 1987 // the callee's non-argument locals. Undo that adjustment. | |
| 1988 __ JMP(O0, 0); // return exception handler in caller | |
| 1989 __ delayed()->restore(I5_savedSP, G0, SP); | |
| 1990 | |
| 1991 // (same old exception object is already in Oexception; see above) | |
| 1992 // Note that an "issuing PC" is actually the next PC after the call | |
| 1993 } | |
| 1994 | |
| 1995 | |
| 1996 // | |
| 1997 // JVMTI ForceEarlyReturn support | |
| 1998 // | |
| 1999 | |
| 2000 address TemplateInterpreterGenerator::generate_earlyret_entry_for(TosState state) { | |
| 2001 address entry = __ pc(); | |
| 2002 | |
| 2003 __ empty_expression_stack(); | |
| 2004 __ load_earlyret_value(state); | |
| 2005 | |
| 727 | 2006 __ ld_ptr(G2_thread, JavaThread::jvmti_thread_state_offset(), G3_scratch); |
| 2007 Address cond_addr(G3_scratch, JvmtiThreadState::earlyret_state_offset()); | |
| 0 | 2008 |
| 2009 // Clear the earlyret state | |
| 2010 __ stw(G0 /* JvmtiThreadState::earlyret_inactive */, cond_addr); | |
| 2011 | |
| 2012 __ remove_activation(state, | |
| 2013 /* throw_monitor_exception */ false, | |
| 2014 /* install_monitor_exception */ false); | |
| 2015 | |
| 2016 // The caller's SP was adjusted upon method entry to accomodate | |
| 2017 // the callee's non-argument locals. Undo that adjustment. | |
| 2018 __ ret(); // return to caller | |
| 2019 __ delayed()->restore(I5_savedSP, G0, SP); | |
| 2020 | |
| 2021 return entry; | |
| 2022 } // end of JVMTI ForceEarlyReturn support | |
| 2023 | |
| 2024 | |
| 2025 //------------------------------------------------------------------------------------------------------------------------ | |
| 2026 // Helper for vtos entry point generation | |
| 2027 | |
| 2028 void TemplateInterpreterGenerator::set_vtos_entry_points(Template* t, address& bep, address& cep, address& sep, address& aep, address& iep, address& lep, address& fep, address& dep, address& vep) { | |
| 2029 assert(t->is_valid() && t->tos_in() == vtos, "illegal template"); | |
| 2030 Label L; | |
| 3839 | 2031 aep = __ pc(); __ push_ptr(); __ ba_short(L); |
| 2032 fep = __ pc(); __ push_f(); __ ba_short(L); | |
| 2033 dep = __ pc(); __ push_d(); __ ba_short(L); | |
| 2034 lep = __ pc(); __ push_l(); __ ba_short(L); | |
| 0 | 2035 iep = __ pc(); __ push_i(); |
| 2036 bep = cep = sep = iep; // there aren't any | |
| 2037 vep = __ pc(); __ bind(L); // fall through | |
| 2038 generate_and_dispatch(t); | |
| 2039 } | |
| 2040 | |
| 2041 // -------------------------------------------------------------------------------- | |
| 2042 | |
| 2043 | |
| 2044 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
| 2045 : TemplateInterpreterGenerator(code) { | |
| 2046 generate_all(); // down here so it can be "virtual" | |
| 2047 } | |
| 2048 | |
| 2049 // -------------------------------------------------------------------------------- | |
| 2050 | |
| 2051 // Non-product code | |
| 2052 #ifndef PRODUCT | |
| 2053 address TemplateInterpreterGenerator::generate_trace_code(TosState state) { | |
| 2054 address entry = __ pc(); | |
| 2055 | |
| 2056 __ push(state); | |
| 2057 __ mov(O7, Lscratch); // protect return address within interpreter | |
| 2058 | |
| 2059 // Pass a 0 (not used in sparc) and the top of stack to the bytecode tracer | |
| 2060 __ mov( Otos_l2, G3_scratch ); | |
| 2061 __ call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::trace_bytecode), G0, Otos_l1, G3_scratch); | |
| 2062 __ mov(Lscratch, O7); // restore return address | |
| 2063 __ pop(state); | |
| 2064 __ retl(); | |
| 2065 __ delayed()->nop(); | |
| 2066 | |
| 2067 return entry; | |
| 2068 } | |
| 2069 | |
| 2070 | |
| 2071 // helpers for generate_and_dispatch | |
| 2072 | |
| 2073 void TemplateInterpreterGenerator::count_bytecode() { | |
| 727 | 2074 __ inc_counter(&BytecodeCounter::_counter_value, G3_scratch, G4_scratch); |
| 0 | 2075 } |
| 2076 | |
| 2077 | |
| 2078 void TemplateInterpreterGenerator::histogram_bytecode(Template* t) { | |
| 727 | 2079 __ inc_counter(&BytecodeHistogram::_counters[t->bytecode()], G3_scratch, G4_scratch); |
| 0 | 2080 } |
| 2081 | |
| 2082 | |
| 2083 void TemplateInterpreterGenerator::histogram_bytecode_pair(Template* t) { | |
| 727 | 2084 AddressLiteral index (&BytecodePairHistogram::_index); |
| 2085 AddressLiteral counters((address) &BytecodePairHistogram::_counters); | |
| 0 | 2086 |
| 2087 // get index, shift out old bytecode, bring in new bytecode, and store it | |
| 2088 // _index = (_index >> log2_number_of_codes) | | |
| 2089 // (bytecode << log2_number_of_codes); | |
| 2090 | |
| 727 | 2091 __ load_contents(index, G4_scratch); |
| 0 | 2092 __ srl( G4_scratch, BytecodePairHistogram::log2_number_of_codes, G4_scratch ); |
| 2093 __ set( ((int)t->bytecode()) << BytecodePairHistogram::log2_number_of_codes, G3_scratch ); | |
| 2094 __ or3( G3_scratch, G4_scratch, G4_scratch ); | |
| 727 | 2095 __ store_contents(G4_scratch, index, G3_scratch); |
| 0 | 2096 |
| 2097 // bump bucket contents | |
| 2098 // _counters[_index] ++; | |
| 2099 | |
| 727 | 2100 __ set(counters, G3_scratch); // loads into G3_scratch |
| 0 | 2101 __ sll( G4_scratch, LogBytesPerWord, G4_scratch ); // Index is word address |
| 2102 __ add (G3_scratch, G4_scratch, G3_scratch); // Add in index | |
| 2103 __ ld (G3_scratch, 0, G4_scratch); | |
| 2104 __ inc (G4_scratch); | |
| 2105 __ st (G4_scratch, 0, G3_scratch); | |
| 2106 } | |
| 2107 | |
| 2108 | |
| 2109 void TemplateInterpreterGenerator::trace_bytecode(Template* t) { | |
| 2110 // Call a little run-time stub to avoid blow-up for each bytecode. | |
| 2111 // The run-time runtime saves the right registers, depending on | |
| 2112 // the tosca in-state for the given template. | |
| 2113 address entry = Interpreter::trace_code(t->tos_in()); | |
| 2114 guarantee(entry != NULL, "entry must have been generated"); | |
| 2115 __ call(entry, relocInfo::none); | |
| 2116 __ delayed()->nop(); | |
| 2117 } | |
| 2118 | |
| 2119 | |
| 2120 void TemplateInterpreterGenerator::stop_interpreter_at() { | |
| 727 | 2121 AddressLiteral counter(&BytecodeCounter::_counter_value); |
| 2122 __ load_contents(counter, G3_scratch); | |
| 2123 AddressLiteral stop_at(&StopInterpreterAt); | |
| 0 | 2124 __ load_ptr_contents(stop_at, G4_scratch); |
| 2125 __ cmp(G3_scratch, G4_scratch); | |
| 5923 | 2126 __ breakpoint_trap(Assembler::equal, Assembler::icc); |
| 0 | 2127 } |
| 2128 #endif // not PRODUCT | |
| 2129 #endif // !CC_INTERP |