1 /* |
1 /* |
2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
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 |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. |
7 * published by the Free Software Foundation. |
337 if (deoptee_nm != NULL && deoptee_nm->is_method_handle_return(deoptee.pc())) |
337 if (deoptee_nm != NULL && deoptee_nm->is_method_handle_return(deoptee.pc())) |
338 unpack_sp = deoptee.unextended_sp(); |
338 unpack_sp = deoptee.unextended_sp(); |
339 |
339 |
340 #ifdef ASSERT |
340 #ifdef ASSERT |
341 assert(cb->is_deoptimization_stub() || cb->is_uncommon_trap_stub(), "just checking"); |
341 assert(cb->is_deoptimization_stub() || cb->is_uncommon_trap_stub(), "just checking"); |
342 Events::log("fetch unroll sp " INTPTR_FORMAT, unpack_sp); |
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343 #endif |
342 #endif |
344 #else |
343 #else |
345 intptr_t* unpack_sp = stub_frame.sender(&dummy_map).unextended_sp(); |
344 intptr_t* unpack_sp = stub_frame.sender(&dummy_map).unextended_sp(); |
346 #endif // !SHARK |
345 #endif // !SHARK |
347 |
346 |
575 #ifndef PRODUCT |
574 #ifndef PRODUCT |
576 if (TraceDeoptimization) { |
575 if (TraceDeoptimization) { |
577 tty->print_cr("DEOPT UNPACKING thread " INTPTR_FORMAT " vframeArray " INTPTR_FORMAT " mode %d", thread, array, exec_mode); |
576 tty->print_cr("DEOPT UNPACKING thread " INTPTR_FORMAT " vframeArray " INTPTR_FORMAT " mode %d", thread, array, exec_mode); |
578 } |
577 } |
579 #endif |
578 #endif |
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579 Events::log(thread, "DEOPT UNPACKING pc=" INTPTR_FORMAT " sp=" INTPTR_FORMAT " mode %d", |
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580 stub_frame.pc(), stub_frame.sp(), exec_mode); |
580 |
581 |
581 UnrollBlock* info = array->unroll_block(); |
582 UnrollBlock* info = array->unroll_block(); |
582 |
583 |
583 // Unpack the interpreter frames and any adapter frame (c2 only) we might create. |
584 // Unpack the interpreter frames and any adapter frame (c2 only) we might create. |
584 array->unpack_to_stack(stub_frame, exec_mode, info->caller_actual_parameters()); |
585 array->unpack_to_stack(stub_frame, exec_mode, info->caller_actual_parameters()); |
979 } |
980 } |
980 #endif |
981 #endif |
981 #endif // COMPILER2 |
982 #endif // COMPILER2 |
982 |
983 |
983 vframeArray* Deoptimization::create_vframeArray(JavaThread* thread, frame fr, RegisterMap *reg_map, GrowableArray<compiledVFrame*>* chunk) { |
984 vframeArray* Deoptimization::create_vframeArray(JavaThread* thread, frame fr, RegisterMap *reg_map, GrowableArray<compiledVFrame*>* chunk) { |
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985 Events::log(thread, "DEOPT PACKING pc=" INTPTR_FORMAT " sp=" INTPTR_FORMAT, fr.pc(), fr.sp()); |
984 |
986 |
985 #ifndef PRODUCT |
987 #ifndef PRODUCT |
986 if (TraceDeoptimization) { |
988 if (TraceDeoptimization) { |
987 ttyLocker ttyl; |
989 ttyLocker ttyl; |
988 tty->print("DEOPT PACKING thread " INTPTR_FORMAT " ", thread); |
990 tty->print("DEOPT PACKING thread " INTPTR_FORMAT " ", thread); |
1024 // For Compiler1, the caller of the deoptimized frame is saved for use by unpack_frames(). |
1026 // For Compiler1, the caller of the deoptimized frame is saved for use by unpack_frames(). |
1025 vframeArray* array = vframeArray::allocate(thread, frame_size, chunk, reg_map, sender, caller, fr); |
1027 vframeArray* array = vframeArray::allocate(thread, frame_size, chunk, reg_map, sender, caller, fr); |
1026 |
1028 |
1027 // Compare the vframeArray to the collected vframes |
1029 // Compare the vframeArray to the collected vframes |
1028 assert(array->structural_compare(thread, chunk), "just checking"); |
1030 assert(array->structural_compare(thread, chunk), "just checking"); |
1029 Events::log("# vframes = %d", (intptr_t)chunk->length()); |
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1030 |
1031 |
1031 #ifndef PRODUCT |
1032 #ifndef PRODUCT |
1032 if (TraceDeoptimization) { |
1033 if (TraceDeoptimization) { |
1033 ttyLocker ttyl; |
1034 ttyLocker ttyl; |
1034 tty->print_cr(" Created vframeArray " INTPTR_FORMAT, array); |
1035 tty->print_cr(" Created vframeArray " INTPTR_FORMAT, array); |
1122 void Deoptimization::deoptimize_single_frame(JavaThread* thread, frame fr) { |
1123 void Deoptimization::deoptimize_single_frame(JavaThread* thread, frame fr) { |
1123 assert(fr.can_be_deoptimized(), "checking frame type"); |
1124 assert(fr.can_be_deoptimized(), "checking frame type"); |
1124 |
1125 |
1125 gather_statistics(Reason_constraint, Action_none, Bytecodes::_illegal); |
1126 gather_statistics(Reason_constraint, Action_none, Bytecodes::_illegal); |
1126 |
1127 |
1127 EventMark m("Deoptimization (pc=" INTPTR_FORMAT ", sp=" INTPTR_FORMAT ")", fr.pc(), fr.id()); |
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1128 |
|
1129 // Patch the nmethod so that when execution returns to it we will |
1128 // Patch the nmethod so that when execution returns to it we will |
1130 // deopt the execution state and return to the interpreter. |
1129 // deopt the execution state and return to the interpreter. |
1131 fr.deoptimize(thread); |
1130 fr.deoptimize(thread); |
1132 } |
1131 } |
1133 |
1132 |
1237 frame fr = stub_frame.sender(®_map); |
1236 frame fr = stub_frame.sender(®_map); |
1238 // Make sure the calling nmethod is not getting deoptimized and removed |
1237 // Make sure the calling nmethod is not getting deoptimized and removed |
1239 // before we are done with it. |
1238 // before we are done with it. |
1240 nmethodLocker nl(fr.pc()); |
1239 nmethodLocker nl(fr.pc()); |
1241 |
1240 |
|
1241 // Log a message |
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1242 Events::log_deopt_message(thread, "Uncommon trap %d fr.pc " INTPTR_FORMAT, |
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1243 trap_request, fr.pc()); |
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1244 |
1242 { |
1245 { |
1243 ResourceMark rm; |
1246 ResourceMark rm; |
1244 |
1247 |
1245 // Revoke biases of any monitors in the frame to ensure we can migrate them |
1248 // Revoke biases of any monitors in the frame to ensure we can migrate them |
1246 revoke_biases_of_monitors(thread, fr, ®_map); |
1249 revoke_biases_of_monitors(thread, fr, ®_map); |
1247 |
1250 |
1248 DeoptReason reason = trap_request_reason(trap_request); |
1251 DeoptReason reason = trap_request_reason(trap_request); |
1249 DeoptAction action = trap_request_action(trap_request); |
1252 DeoptAction action = trap_request_action(trap_request); |
1250 jint unloaded_class_index = trap_request_index(trap_request); // CP idx or -1 |
1253 jint unloaded_class_index = trap_request_index(trap_request); // CP idx or -1 |
1251 |
1254 |
1252 Events::log("Uncommon trap occurred @" INTPTR_FORMAT " unloaded_class_index = %d", fr.pc(), (int) trap_request); |
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1253 vframe* vf = vframe::new_vframe(&fr, ®_map, thread); |
1255 vframe* vf = vframe::new_vframe(&fr, ®_map, thread); |
1254 compiledVFrame* cvf = compiledVFrame::cast(vf); |
1256 compiledVFrame* cvf = compiledVFrame::cast(vf); |
1255 |
1257 |
1256 nmethod* nm = cvf->code(); |
1258 nmethod* nm = cvf->code(); |
1257 |
1259 |