18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "classfile/moduleEntry.hpp"
26 #include "code/codeCache.hpp"
27 #include "code/scopeDesc.hpp"
28 #include "code/vmreg.inline.hpp"
29 #include "compiler/abstractCompiler.hpp"
30 #include "compiler/disassembler.hpp"
31 #include "compiler/oopMap.hpp"
32 #include "gc/shared/collectedHeap.inline.hpp"
33 #include "interpreter/interpreter.hpp"
34 #include "interpreter/oopMapCache.hpp"
35 #include "logging/log.hpp"
36 #include "memory/resourceArea.hpp"
37 #include "memory/universe.hpp"
38 #include "oops/markWord.hpp"
39 #include "oops/method.inline.hpp"
40 #include "oops/methodData.hpp"
41 #include "oops/oop.inline.hpp"
42 #include "oops/stackChunkOop.inline.hpp"
43 #include "oops/verifyOopClosure.hpp"
44 #include "prims/methodHandles.hpp"
45 #include "runtime/continuation.hpp"
46 #include "runtime/continuationEntry.inline.hpp"
47 #include "runtime/frame.inline.hpp"
48 #include "runtime/handles.inline.hpp"
49 #include "runtime/javaCalls.hpp"
50 #include "runtime/javaThread.hpp"
51 #include "runtime/monitorChunk.hpp"
52 #include "runtime/os.hpp"
53 #include "runtime/safefetch.hpp"
54 #include "runtime/sharedRuntime.hpp"
55 #include "runtime/signature.hpp"
56 #include "runtime/stackValue.hpp"
57 #include "runtime/stubCodeGenerator.hpp"
58 #include "runtime/stubRoutines.hpp"
59 #include "utilities/debug.hpp"
60 #include "utilities/decoder.hpp"
61 #include "utilities/formatBuffer.hpp"
62
63 RegisterMap::RegisterMap(JavaThread *thread, UpdateMap update_map, ProcessFrames process_frames, WalkContinuation walk_cont) {
64 _thread = thread;
65 _update_map = update_map == UpdateMap::include;
66 _process_frames = process_frames == ProcessFrames::include;
67 _walk_cont = walk_cont == WalkContinuation::include;
68 clear();
69 DEBUG_ONLY (_update_for_id = nullptr;)
70 NOT_PRODUCT(_skip_missing = false;)
71 NOT_PRODUCT(_async = false;)
72
73 if (walk_cont == WalkContinuation::include && thread != nullptr && thread->last_continuation() != nullptr) {
74 _chunk = stackChunkHandle(Thread::current()->handle_area()->allocate_null_handle(), true /* dummy */);
75 }
76 _chunk_index = -1;
77
78 #ifndef PRODUCT
79 for (int i = 0; i < reg_count ; i++ ) _location[i] = nullptr;
80 #endif /* PRODUCT */
81 }
344 return false;
345
346 return !nm->is_at_poll_return(pc());
347 }
348
349 void frame::deoptimize(JavaThread* thread) {
350 assert(thread == nullptr
351 || (thread->frame_anchor()->has_last_Java_frame() &&
352 thread->frame_anchor()->walkable()), "must be");
353 // Schedule deoptimization of an nmethod activation with this frame.
354 assert(_cb != nullptr && _cb->is_nmethod(), "must be");
355
356 // If the call site is a MethodHandle call site use the MH deopt handler.
357 nmethod* nm = _cb->as_nmethod();
358 address deopt = nm->deopt_handler_entry();
359
360 NativePostCallNop* inst = nativePostCallNop_at(pc());
361
362 // Save the original pc before we patch in the new one
363 nm->set_original_pc(this, pc());
364 patch_pc(thread, deopt);
365 assert(is_deoptimized_frame(), "must be");
366
367 #ifdef ASSERT
368 if (thread != nullptr) {
369 frame fr = thread->last_frame();
370 RegisterMap map(thread,
371 RegisterMap::UpdateMap::skip,
372 RegisterMap::ProcessFrames::include,
373 !is_heap_frame() ? RegisterMap::WalkContinuation::skip : RegisterMap::WalkContinuation::include);
374 intptr_t* fr_id = fr.id();
375 while (id() != fr_id) {
376 fr = fr.sender(&map);
377 if (fr.is_heap_frame()) {
378 assert(is_heap_frame(), "");
379 frame derel_fr = map.stack_chunk()->derelativize(fr);
380 fr_id = derel_fr.id();
381 } else {
382 fr_id = fr.id();
383 }
995 class CompiledArgumentOopFinder: public SignatureIterator {
996 protected:
997 OopClosure* _f;
998 int _offset; // the current offset, incremented with each argument
999 bool _has_receiver; // true if the callee has a receiver
1000 bool _has_appendix; // true if the call has an appendix
1001 frame _fr;
1002 RegisterMap* _reg_map;
1003 int _arg_size;
1004 VMRegPair* _regs; // VMReg list of arguments
1005
1006 friend class SignatureIterator; // so do_parameters_on can call do_type
1007 void do_type(BasicType type) {
1008 if (is_reference_type(type)) handle_oop_offset();
1009 _offset += parameter_type_word_count(type);
1010 }
1011
1012 virtual void handle_oop_offset() {
1013 // Extract low order register number from register array.
1014 // In LP64-land, the high-order bits are valid but unhelpful.
1015 VMReg reg = _regs[_offset].first();
1016 oop *loc = _fr.oopmapreg_to_oop_location(reg, _reg_map);
1017 #ifdef ASSERT
1018 if (loc == nullptr) {
1019 if (_reg_map->should_skip_missing()) {
1020 return;
1021 }
1022 tty->print_cr("Error walking frame oops:");
1023 _fr.print_on(tty);
1024 assert(loc != nullptr, "missing register map entry reg: %d %s loc: " INTPTR_FORMAT, reg->value(), reg->name(), p2i(loc));
1025 }
1026 #endif
1027 _f->do_oop(loc);
1028 }
1029
1030 public:
1031 CompiledArgumentOopFinder(Symbol* signature, bool has_receiver, bool has_appendix, OopClosure* f, frame fr, const RegisterMap* reg_map)
1032 : SignatureIterator(signature) {
1033
1034 // initialize CompiledArgumentOopFinder
1035 _f = f;
1036 _offset = 0;
1037 _has_receiver = has_receiver;
1038 _has_appendix = has_appendix;
1039 _fr = fr;
1040 _reg_map = (RegisterMap*)reg_map;
1041 _arg_size = ArgumentSizeComputer(signature).size() + (has_receiver ? 1 : 0) + (has_appendix ? 1 : 0);
1042
1043 int arg_size;
1044 _regs = SharedRuntime::find_callee_arguments(signature, has_receiver, has_appendix, &arg_size);
1045 assert(arg_size == _arg_size, "wrong arg size");
1046 }
1047
1048 void oops_do() {
1049 if (_has_receiver) {
1050 handle_oop_offset();
1051 _offset++;
1052 }
1053 do_parameters_on(this);
1054 if (_has_appendix) {
1055 handle_oop_offset();
1056 _offset++;
1057 }
1058 }
1059 };
1060
1061 void frame::oops_compiled_arguments_do(Symbol* signature, bool has_receiver, bool has_appendix,
1062 const RegisterMap* reg_map, OopClosure* f) const {
1063 // ResourceMark rm;
1064 CompiledArgumentOopFinder finder(signature, has_receiver, has_appendix, f, *this, reg_map);
1065 finder.oops_do();
1389 tos = MAX2(tos, interpreter_frame_expression_stack_at(e));
1390 values.describe(frame_no, interpreter_frame_expression_stack_at(e),
1391 err_msg("stack %d", e), 1);
1392 }
1393 if (tos != nullptr) {
1394 values.describe(-1, tos, err_msg("expression stack for #%d", frame_no), 2);
1395 }
1396
1397 if (reg_map != nullptr) {
1398 FrameValuesOopClosure oopsFn;
1399 oops_do(&oopsFn, nullptr, &oopsFn, reg_map);
1400 oopsFn.describe(values, frame_no);
1401 }
1402 } else if (is_entry_frame()) {
1403 // For now just label the frame
1404 values.describe(-1, info_address, err_msg("#%d entry frame", frame_no), 2);
1405 } else if (is_compiled_frame()) {
1406 // For now just label the frame
1407 nmethod* nm = cb()->as_nmethod();
1408 values.describe(-1, info_address,
1409 FormatBuffer<1024>("#%d nmethod " INTPTR_FORMAT " for method J %s%s", frame_no,
1410 p2i(nm),
1411 nm->method()->name_and_sig_as_C_string(),
1412 (_deopt_state == is_deoptimized) ?
1413 " (deoptimized)" :
1414 ((_deopt_state == unknown) ? " (state unknown)" : "")),
1415 3);
1416
1417 { // mark arguments (see nmethod::print_nmethod_labels)
1418 Method* m = nm->method();
1419
1420 int stack_slot_offset = nm->frame_size() * wordSize; // offset, in bytes, to caller sp
1421 int sizeargs = m->size_of_parameters();
1422
1423 BasicType* sig_bt = NEW_RESOURCE_ARRAY(BasicType, sizeargs);
1424 VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs);
1425 {
1426 int sig_index = 0;
1427 if (!m->is_static()) {
1428 sig_bt[sig_index++] = T_OBJECT; // 'this'
1429 }
1430 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ss.next()) {
1431 BasicType t = ss.type();
1432 assert(type2size[t] == 1 || type2size[t] == 2, "size is 1 or 2");
1433 sig_bt[sig_index++] = t;
1434 if (type2size[t] == 2) {
1435 sig_bt[sig_index++] = T_VOID;
1436 }
1437 }
1438 assert(sig_index == sizeargs, "");
1439 }
1440 int stack_arg_slots = SharedRuntime::java_calling_convention(sig_bt, regs, sizeargs);
1441 assert(stack_arg_slots == nm->as_nmethod()->num_stack_arg_slots(false /* rounded */) || nm->is_osr_method(), "");
1442 int out_preserve = SharedRuntime::out_preserve_stack_slots();
1443 int sig_index = 0;
1444 int arg_index = (m->is_static() ? 0 : -1);
1445 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ) {
1446 bool at_this = (arg_index == -1);
1447 bool at_old_sp = false;
1448 BasicType t = (at_this ? T_OBJECT : ss.type());
1449 assert(t == sig_bt[sig_index], "sigs in sync");
1450 VMReg fst = regs[sig_index].first();
1451 if (fst->is_stack()) {
1452 assert(((int)fst->reg2stack()) >= 0, "reg2stack: %d", fst->reg2stack());
1453 int offset = (fst->reg2stack() + out_preserve) * VMRegImpl::stack_slot_size + stack_slot_offset;
1454 intptr_t* stack_address = (intptr_t*)((address)unextended_sp() + offset);
1455 if (at_this) {
1456 values.describe(frame_no, stack_address, err_msg("this for #%d", frame_no), 1);
1457 } else {
1458 values.describe(frame_no, stack_address, err_msg("param %d %s for #%d", arg_index, type2name(t), frame_no), 1);
1459 }
1460 }
1461 sig_index += type2size[t];
1462 arg_index += 1;
1463 if (!at_this) {
1464 ss.next();
1465 }
1466 }
1467 }
1468
1469 if (reg_map != nullptr && is_java_frame()) {
1470 int scope_no = 0;
1471 for (ScopeDesc* scope = nm->scope_desc_at(pc()); scope != nullptr; scope = scope->sender(), scope_no++) {
1472 Method* m = scope->method();
1473 int bci = scope->bci();
1474 values.describe(-1, info_address, err_msg("- #%d scope %s @ %d", scope_no, m->name_and_sig_as_C_string(), bci), 2);
1475
1476 { // mark locals
1477 GrowableArray<ScopeValue*>* scvs = scope->locals();
1478 int scvs_length = scvs != nullptr ? scvs->length() : 0;
1479 for (int i = 0; i < scvs_length; i++) {
1480 intptr_t* stack_address = (intptr_t*)StackValue::stack_value_address(this, reg_map, scvs->at(i));
1481 if (stack_address != nullptr) {
1482 values.describe(frame_no, stack_address, err_msg("local %d for #%d (scope %d)", i, frame_no, scope_no), 1);
1483 }
1484 }
1485 }
|
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "classfile/moduleEntry.hpp"
26 #include "code/codeCache.hpp"
27 #include "code/scopeDesc.hpp"
28 #include "code/vmreg.inline.hpp"
29 #include "compiler/abstractCompiler.hpp"
30 #include "compiler/disassembler.hpp"
31 #include "compiler/oopMap.hpp"
32 #include "gc/shared/collectedHeap.inline.hpp"
33 #include "interpreter/interpreter.hpp"
34 #include "interpreter/oopMapCache.hpp"
35 #include "logging/log.hpp"
36 #include "memory/resourceArea.hpp"
37 #include "memory/universe.hpp"
38 #include "oops/inlineKlass.hpp"
39 #include "oops/markWord.hpp"
40 #include "oops/method.inline.hpp"
41 #include "oops/methodData.hpp"
42 #include "oops/oop.inline.hpp"
43 #include "oops/stackChunkOop.inline.hpp"
44 #include "oops/verifyOopClosure.hpp"
45 #include "prims/methodHandles.hpp"
46 #include "runtime/continuation.hpp"
47 #include "runtime/continuationEntry.inline.hpp"
48 #include "runtime/frame.inline.hpp"
49 #include "runtime/handles.inline.hpp"
50 #include "runtime/javaCalls.hpp"
51 #include "runtime/javaThread.hpp"
52 #include "runtime/monitorChunk.hpp"
53 #include "runtime/os.hpp"
54 #include "runtime/safefetch.hpp"
55 #include "runtime/sharedRuntime.hpp"
56 #include "runtime/signature.hpp"
57 #include "runtime/stackValue.hpp"
58 #include "runtime/stubCodeGenerator.hpp"
59 #include "runtime/stubRoutines.hpp"
60 #include "utilities/debug.hpp"
61 #include "utilities/decoder.hpp"
62 #include "utilities/formatBuffer.hpp"
63 #ifdef COMPILER1
64 #include "c1/c1_Runtime1.hpp"
65 #endif
66
67 RegisterMap::RegisterMap(JavaThread *thread, UpdateMap update_map, ProcessFrames process_frames, WalkContinuation walk_cont) {
68 _thread = thread;
69 _update_map = update_map == UpdateMap::include;
70 _process_frames = process_frames == ProcessFrames::include;
71 _walk_cont = walk_cont == WalkContinuation::include;
72 clear();
73 DEBUG_ONLY (_update_for_id = nullptr;)
74 NOT_PRODUCT(_skip_missing = false;)
75 NOT_PRODUCT(_async = false;)
76
77 if (walk_cont == WalkContinuation::include && thread != nullptr && thread->last_continuation() != nullptr) {
78 _chunk = stackChunkHandle(Thread::current()->handle_area()->allocate_null_handle(), true /* dummy */);
79 }
80 _chunk_index = -1;
81
82 #ifndef PRODUCT
83 for (int i = 0; i < reg_count ; i++ ) _location[i] = nullptr;
84 #endif /* PRODUCT */
85 }
348 return false;
349
350 return !nm->is_at_poll_return(pc());
351 }
352
353 void frame::deoptimize(JavaThread* thread) {
354 assert(thread == nullptr
355 || (thread->frame_anchor()->has_last_Java_frame() &&
356 thread->frame_anchor()->walkable()), "must be");
357 // Schedule deoptimization of an nmethod activation with this frame.
358 assert(_cb != nullptr && _cb->is_nmethod(), "must be");
359
360 // If the call site is a MethodHandle call site use the MH deopt handler.
361 nmethod* nm = _cb->as_nmethod();
362 address deopt = nm->deopt_handler_entry();
363
364 NativePostCallNop* inst = nativePostCallNop_at(pc());
365
366 // Save the original pc before we patch in the new one
367 nm->set_original_pc(this, pc());
368
369 #ifdef COMPILER1
370 if (nm->is_compiled_by_c1() && nm->method()->has_scalarized_args() &&
371 pc() < nm->verified_inline_entry_point()) {
372 // The VEP and VIEP(RO) of C1-compiled methods call into the runtime to buffer scalarized value
373 // type args. We can't deoptimize at that point because the buffers have not yet been initialized.
374 // Also, if the method is synchronized, we first need to acquire the lock.
375 // Don't patch the return pc to delay deoptimization until we enter the method body (the check
376 // added in LIRGenerator::do_Base will detect the pending deoptimization by checking the original_pc).
377 #if defined ASSERT && !defined AARCH64 // Stub call site does not look like NativeCall on AArch64
378 NativeCall* call = nativeCall_before(this->pc());
379 address dest = call->destination();
380 assert(dest == Runtime1::entry_for(StubId::c1_buffer_inline_args_no_receiver_id) ||
381 dest == Runtime1::entry_for(StubId::c1_buffer_inline_args_id), "unexpected safepoint in entry point");
382 #endif
383 return;
384 }
385 #endif
386
387 patch_pc(thread, deopt);
388 assert(is_deoptimized_frame(), "must be");
389
390 #ifdef ASSERT
391 if (thread != nullptr) {
392 frame fr = thread->last_frame();
393 RegisterMap map(thread,
394 RegisterMap::UpdateMap::skip,
395 RegisterMap::ProcessFrames::include,
396 !is_heap_frame() ? RegisterMap::WalkContinuation::skip : RegisterMap::WalkContinuation::include);
397 intptr_t* fr_id = fr.id();
398 while (id() != fr_id) {
399 fr = fr.sender(&map);
400 if (fr.is_heap_frame()) {
401 assert(is_heap_frame(), "");
402 frame derel_fr = map.stack_chunk()->derelativize(fr);
403 fr_id = derel_fr.id();
404 } else {
405 fr_id = fr.id();
406 }
1018 class CompiledArgumentOopFinder: public SignatureIterator {
1019 protected:
1020 OopClosure* _f;
1021 int _offset; // the current offset, incremented with each argument
1022 bool _has_receiver; // true if the callee has a receiver
1023 bool _has_appendix; // true if the call has an appendix
1024 frame _fr;
1025 RegisterMap* _reg_map;
1026 int _arg_size;
1027 VMRegPair* _regs; // VMReg list of arguments
1028
1029 friend class SignatureIterator; // so do_parameters_on can call do_type
1030 void do_type(BasicType type) {
1031 if (is_reference_type(type)) handle_oop_offset();
1032 _offset += parameter_type_word_count(type);
1033 }
1034
1035 virtual void handle_oop_offset() {
1036 // Extract low order register number from register array.
1037 // In LP64-land, the high-order bits are valid but unhelpful.
1038 assert(_offset < _arg_size, "out of bounds");
1039 VMReg reg = _regs[_offset].first();
1040 oop *loc = _fr.oopmapreg_to_oop_location(reg, _reg_map);
1041 #ifdef ASSERT
1042 if (loc == nullptr) {
1043 if (_reg_map->should_skip_missing()) {
1044 return;
1045 }
1046 tty->print_cr("Error walking frame oops:");
1047 _fr.print_on(tty);
1048 assert(loc != nullptr, "missing register map entry reg: %d %s loc: " INTPTR_FORMAT, reg->value(), reg->name(), p2i(loc));
1049 }
1050 #endif
1051 _f->do_oop(loc);
1052 }
1053
1054 public:
1055 CompiledArgumentOopFinder(Symbol* signature, bool has_receiver, bool has_appendix, OopClosure* f, frame fr, const RegisterMap* reg_map)
1056 : SignatureIterator(signature) {
1057
1058 // initialize CompiledArgumentOopFinder
1059 _f = f;
1060 _offset = 0;
1061 _has_receiver = has_receiver;
1062 _has_appendix = has_appendix;
1063 _fr = fr;
1064 _reg_map = (RegisterMap*)reg_map;
1065 _regs = SharedRuntime::find_callee_arguments(signature, has_receiver, has_appendix, &_arg_size);
1066 }
1067
1068 void oops_do() {
1069 if (_has_receiver) {
1070 handle_oop_offset();
1071 _offset++;
1072 }
1073 do_parameters_on(this);
1074 if (_has_appendix) {
1075 handle_oop_offset();
1076 _offset++;
1077 }
1078 }
1079 };
1080
1081 void frame::oops_compiled_arguments_do(Symbol* signature, bool has_receiver, bool has_appendix,
1082 const RegisterMap* reg_map, OopClosure* f) const {
1083 // ResourceMark rm;
1084 CompiledArgumentOopFinder finder(signature, has_receiver, has_appendix, f, *this, reg_map);
1085 finder.oops_do();
1409 tos = MAX2(tos, interpreter_frame_expression_stack_at(e));
1410 values.describe(frame_no, interpreter_frame_expression_stack_at(e),
1411 err_msg("stack %d", e), 1);
1412 }
1413 if (tos != nullptr) {
1414 values.describe(-1, tos, err_msg("expression stack for #%d", frame_no), 2);
1415 }
1416
1417 if (reg_map != nullptr) {
1418 FrameValuesOopClosure oopsFn;
1419 oops_do(&oopsFn, nullptr, &oopsFn, reg_map);
1420 oopsFn.describe(values, frame_no);
1421 }
1422 } else if (is_entry_frame()) {
1423 // For now just label the frame
1424 values.describe(-1, info_address, err_msg("#%d entry frame", frame_no), 2);
1425 } else if (is_compiled_frame()) {
1426 // For now just label the frame
1427 nmethod* nm = cb()->as_nmethod();
1428 values.describe(-1, info_address,
1429 FormatBuffer<1024>("#%d nmethod (%s %d) " INTPTR_FORMAT " for method J %s%s", frame_no,
1430 nm->is_compiled_by_c1() ? "c1" : "c2", nm->frame_size(), p2i(nm),
1431 nm->method()->name_and_sig_as_C_string(),
1432 (_deopt_state == is_deoptimized) ?
1433 " (deoptimized)" :
1434 ((_deopt_state == unknown) ? " (state unknown)" : "")),
1435 3);
1436
1437 { // mark arguments (see nmethod::print_nmethod_labels)
1438 Method* m = nm->method();
1439
1440 CompiledEntrySignature ces(m);
1441 ces.compute_calling_conventions(false);
1442 const GrowableArray<SigEntry>* sig_cc = nm->is_compiled_by_c2() ? ces.sig_cc() : ces.sig();
1443 const VMRegPair* regs = nm->is_compiled_by_c2() ? ces.regs_cc() : ces.regs();
1444
1445 int stack_slot_offset = nm->frame_size() * wordSize; // offset, in bytes, to caller sp
1446 int out_preserve = SharedRuntime::out_preserve_stack_slots();
1447 int sig_index = 0;
1448 int arg_index = (m->is_static() ? 0 : -1);
1449 for (ExtendedSignature sig = ExtendedSignature(sig_cc, SigEntryFilter()); !sig.at_end(); ++sig) {
1450 bool at_this = (arg_index == -1);
1451 BasicType t = (*sig)._bt;
1452 VMReg fst = regs[sig_index].first();
1453 if (fst->is_stack()) {
1454 assert(((int)fst->reg2stack()) >= 0, "reg2stack: %d", fst->reg2stack());
1455 int offset = (fst->reg2stack() + out_preserve) * VMRegImpl::stack_slot_size + stack_slot_offset;
1456 intptr_t* stack_address = (intptr_t*)((address)unextended_sp() + offset);
1457 if (at_this) {
1458 values.describe(frame_no, stack_address, err_msg("this for #%d", frame_no), 1);
1459 } else {
1460 values.describe(frame_no, stack_address, err_msg("param %d %s for #%d", arg_index, type2name(t), frame_no), 1);
1461 }
1462 }
1463 sig_index += type2size[t];
1464 arg_index += 1;
1465 }
1466 }
1467
1468 if (reg_map != nullptr && is_java_frame()) {
1469 int scope_no = 0;
1470 for (ScopeDesc* scope = nm->scope_desc_at(pc()); scope != nullptr; scope = scope->sender(), scope_no++) {
1471 Method* m = scope->method();
1472 int bci = scope->bci();
1473 values.describe(-1, info_address, err_msg("- #%d scope %s @ %d", scope_no, m->name_and_sig_as_C_string(), bci), 2);
1474
1475 { // mark locals
1476 GrowableArray<ScopeValue*>* scvs = scope->locals();
1477 int scvs_length = scvs != nullptr ? scvs->length() : 0;
1478 for (int i = 0; i < scvs_length; i++) {
1479 intptr_t* stack_address = (intptr_t*)StackValue::stack_value_address(this, reg_map, scvs->at(i));
1480 if (stack_address != nullptr) {
1481 values.describe(frame_no, stack_address, err_msg("local %d for #%d (scope %d)", i, frame_no, scope_no), 1);
1482 }
1483 }
1484 }
|