2
* Copyright (c) 1997, 2024, Oracle and/or its affiliates. All rights reserved.
3
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5
* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* 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).
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.
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
25
#include "precompiled.hpp"
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#include "classfile/javaClasses.inline.hpp"
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#include "classfile/javaThreadStatus.hpp"
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#include "classfile/vmClasses.hpp"
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#include "classfile/vmSymbols.hpp"
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#include "code/codeCache.hpp"
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#include "code/debugInfoRec.hpp"
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#include "code/nmethod.hpp"
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#include "code/pcDesc.hpp"
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#include "code/scopeDesc.hpp"
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#include "interpreter/interpreter.hpp"
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#include "interpreter/oopMapCache.hpp"
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#include "memory/resourceArea.hpp"
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#include "oops/instanceKlass.hpp"
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#include "oops/method.inline.hpp"
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#include "oops/oop.inline.hpp"
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#include "oops/stackChunkOop.hpp"
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#include "prims/jvmtiExport.hpp"
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#include "runtime/frame.inline.hpp"
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#include "runtime/globals.hpp"
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#include "runtime/handles.inline.hpp"
46
#include "runtime/javaThread.inline.hpp"
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#include "runtime/objectMonitor.hpp"
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#include "runtime/objectMonitor.inline.hpp"
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#include "runtime/osThread.hpp"
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#include "runtime/signature.hpp"
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#include "runtime/stackFrameStream.inline.hpp"
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#include "runtime/stubRoutines.hpp"
53
#include "runtime/synchronizer.hpp"
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#include "runtime/vframe.inline.hpp"
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#include "runtime/vframeArray.hpp"
56
#include "runtime/vframe_hp.hpp"
58
vframe::vframe(const frame* fr, const RegisterMap* reg_map, JavaThread* thread)
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: _reg_map(reg_map), _thread(thread),
60
_chunk(Thread::current(), reg_map->stack_chunk()()) {
61
assert(fr != nullptr, "must have frame");
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vframe* vframe::new_vframe(const frame* f, const RegisterMap* reg_map, JavaThread* thread) {
67
if (f->is_interpreted_frame()) {
68
return new interpretedVFrame(f, reg_map, thread);
72
CodeBlob* cb = f->cb();
74
if (cb->is_nmethod()) {
75
nmethod* nm = cb->as_nmethod();
76
return new compiledVFrame(f, reg_map, thread, nm);
79
if (f->is_runtime_frame()) {
80
// Skip this frame and try again.
81
RegisterMap temp_map = *reg_map;
82
frame s = f->sender(&temp_map);
83
return new_vframe(&s, &temp_map, thread);
88
if (f->is_entry_frame()) {
89
return new entryVFrame(f, reg_map, thread);
93
return new externalVFrame(f, reg_map, thread);
96
vframe* vframe::sender() const {
97
RegisterMap temp_map = *register_map();
98
assert(is_top(), "just checking");
99
if (_fr.is_empty()) return nullptr;
100
if (_fr.is_entry_frame() && _fr.is_first_frame()) return nullptr;
101
frame s = _fr.real_sender(&temp_map);
102
if (s.is_first_frame()) return nullptr;
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return vframe::new_vframe(&s, &temp_map, thread());
106
bool vframe::is_vthread_entry() const {
107
return _fr.is_first_vthread_frame(register_map()->thread());
110
javaVFrame* vframe::java_sender() const {
111
vframe* f = sender();
112
while (f != nullptr) {
113
if (f->is_vthread_entry()) break;
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if (f->is_java_frame() && !javaVFrame::cast(f)->method()->is_continuation_enter_intrinsic())
115
return javaVFrame::cast(f);
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// ------------- javaVFrame --------------
123
GrowableArray<MonitorInfo*>* javaVFrame::locked_monitors() {
124
assert(SafepointSynchronize::is_at_safepoint() || JavaThread::current() == thread(),
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"must be at safepoint or it's a java frame of the current thread");
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GrowableArray<MonitorInfo*>* mons = monitors();
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GrowableArray<MonitorInfo*>* result = new GrowableArray<MonitorInfo*>(mons->length());
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if (mons->is_empty()) return result;
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bool found_first_monitor = false;
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// The ObjectMonitor* can't be async deflated since we are either
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// at a safepoint or the calling thread is operating on itself so
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// it cannot exit the ObjectMonitor so it remains busy.
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ObjectMonitor *waiting_monitor = thread()->current_waiting_monitor();
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ObjectMonitor *pending_monitor = nullptr;
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if (waiting_monitor == nullptr) {
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pending_monitor = thread()->current_pending_monitor();
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oop pending_obj = (pending_monitor != nullptr ? pending_monitor->object() : (oop) nullptr);
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oop waiting_obj = (waiting_monitor != nullptr ? waiting_monitor->object() : (oop) nullptr);
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for (int index = (mons->length()-1); index >= 0; index--) {
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MonitorInfo* monitor = mons->at(index);
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if (monitor->eliminated() && is_compiled_frame()) continue; // skip eliminated monitor
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oop obj = monitor->owner();
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if (obj == nullptr) continue; // skip unowned monitor
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// Skip the monitor that the thread is blocked to enter or waiting on
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if (!found_first_monitor && (obj == pending_obj || obj == waiting_obj)) {
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found_first_monitor = true;
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result->append(monitor);
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void javaVFrame::print_locked_object_class_name(outputStream* st, Handle obj, const char* lock_state) {
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if (obj.not_null()) {
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st->print("\t- %s <" INTPTR_FORMAT "> ", lock_state, p2i(obj()));
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if (obj->klass() == vmClasses::Class_klass()) {
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st->print_cr("(a java.lang.Class for %s)", java_lang_Class::as_external_name(obj()));
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Klass* k = obj->klass();
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st->print_cr("(a %s)", k->external_name());
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void javaVFrame::print_lock_info_on(outputStream* st, int frame_count) {
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Thread* current = Thread::current();
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ResourceMark rm(current);
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HandleMark hm(current);
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// If this is the first frame and it is java.lang.Object.wait(...)
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// then print out the receiver. Locals are not always available,
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// e.g., compiled native frames have no scope so there are no locals.
180
if (frame_count == 0) {
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if (method()->name() == vmSymbols::wait_name() &&
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method()->method_holder()->name() == vmSymbols::java_lang_Object()) {
183
const char *wait_state = "waiting on"; // assume we are waiting
184
// If earlier in the output we reported java.lang.Thread.State ==
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// "WAITING (on object monitor)" and now we report "waiting on", then
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// we are still waiting for notification or timeout. Otherwise if
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// we earlier reported java.lang.Thread.State == "BLOCKED (on object
188
// monitor)", then we are actually waiting to re-lock the monitor.
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StackValueCollection* locs = locals();
190
if (!locs->is_empty()) {
191
StackValue* sv = locs->at(0);
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if (sv->type() == T_OBJECT) {
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Handle o = locs->at(0)->get_obj();
194
if (java_lang_Thread::get_thread_status(thread()->threadObj()) ==
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JavaThreadStatus::BLOCKED_ON_MONITOR_ENTER) {
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wait_state = "waiting to re-lock in wait()";
198
print_locked_object_class_name(st, o, wait_state);
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st->print_cr("\t- %s <no object reference available>", wait_state);
203
} else if (thread()->current_park_blocker() != nullptr) {
204
oop obj = thread()->current_park_blocker();
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Klass* k = obj->klass();
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st->print_cr("\t- %s <" INTPTR_FORMAT "> (a %s)", "parking to wait for ", p2i(obj), k->external_name());
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else if (thread()->osthread()->get_state() == OBJECT_WAIT) {
209
// We are waiting on an Object monitor but Object.wait() isn't the
210
// top-frame, so we should be waiting on a Class initialization monitor.
211
InstanceKlass* k = thread()->class_to_be_initialized();
213
st->print_cr("\t- waiting on the Class initialization monitor for %s", k->external_name());
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// Print out all monitors that we have locked, or are trying to lock,
219
// including re-locking after being notified or timing out in a wait().
220
GrowableArray<MonitorInfo*>* mons = monitors();
221
if (!mons->is_empty()) {
222
bool found_first_monitor = false;
223
for (int index = (mons->length()-1); index >= 0; index--) {
224
MonitorInfo* monitor = mons->at(index);
225
if (monitor->eliminated() && is_compiled_frame()) { // Eliminated in compiled code
226
if (monitor->owner_is_scalar_replaced()) {
227
Klass* k = java_lang_Class::as_Klass(monitor->owner_klass());
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st->print_cr("\t- eliminated <owner is scalar replaced> (a %s)", k->external_name());
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Handle obj(current, monitor->owner());
231
if (obj() != nullptr) {
232
print_locked_object_class_name(st, obj, "eliminated");
237
if (monitor->owner() != nullptr) {
238
// the monitor is associated with an object, i.e., it is locked
240
const char *lock_state = "locked"; // assume we have the monitor locked
241
if (!found_first_monitor && frame_count == 0) {
242
// If this is the first frame and we haven't found an owned
243
// monitor before, then we need to see if we have completed
244
// the lock or if we are blocked trying to acquire it. Only
245
// an inflated monitor that is first on the monitor list in
246
// the first frame can block us on a monitor enter.
247
markWord mark = monitor->owner()->mark();
248
// The first stage of async deflation does not affect any field
249
// used by this comparison so the ObjectMonitor* is usable here.
250
if (mark.has_monitor() &&
251
( // we have marked ourself as pending on this monitor
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mark.monitor() == thread()->current_pending_monitor() ||
253
// we are not the owner of this monitor
254
!mark.monitor()->is_entered(thread())
256
lock_state = "waiting to lock";
259
print_locked_object_class_name(st, Handle(current, monitor->owner()), lock_state);
261
found_first_monitor = true;
267
// ------------- interpretedVFrame --------------
269
u_char* interpretedVFrame::bcp() const {
270
return stack_chunk() == nullptr ? fr().interpreter_frame_bcp() : stack_chunk()->interpreter_frame_bcp(fr());
273
intptr_t* interpretedVFrame::locals_addr_at(int offset) const {
274
assert(stack_chunk() == nullptr, "Not supported for heap frames"); // unsupported for now because seems to be unused
275
assert(fr().is_interpreted_frame(), "frame should be an interpreted frame");
276
return fr().interpreter_frame_local_at(offset);
279
GrowableArray<MonitorInfo*>* interpretedVFrame::monitors() const {
280
GrowableArray<MonitorInfo*>* result = new GrowableArray<MonitorInfo*>(5);
281
if (stack_chunk() == nullptr) { // no monitors in continuations
282
for (BasicObjectLock* current = (fr().previous_monitor_in_interpreter_frame(fr().interpreter_frame_monitor_begin()));
283
current >= fr().interpreter_frame_monitor_end();
284
current = fr().previous_monitor_in_interpreter_frame(current)) {
285
result->push(new MonitorInfo(current->obj(), current->lock(), false, false));
291
int interpretedVFrame::bci() const {
292
return method()->bci_from(bcp());
295
Method* interpretedVFrame::method() const {
296
return stack_chunk() == nullptr ? fr().interpreter_frame_method() : stack_chunk()->interpreter_frame_method(fr());
299
static StackValue* create_stack_value_from_oop_map(const InterpreterOopMap& oop_mask,
301
const intptr_t* const addr,
302
stackChunkOop chunk) {
304
assert(index >= 0 && index < oop_mask.number_of_entries(), "invariant");
306
// categorize using oop_mask
307
if (oop_mask.is_oop(index)) {
308
return StackValue::create_stack_value_from_oop_location(chunk, (void*)addr);
310
// value (integer) "v"
311
return new StackValue(addr != nullptr ? *addr : 0);
314
static bool is_in_expression_stack(const frame& fr, const intptr_t* const addr) {
315
assert(addr != nullptr, "invariant");
317
// Ensure to be 'inside' the expression stack (i.e., addr >= sp for Intel).
318
// In case of exceptions, the expression stack is invalid and the sp
319
// will be reset to express this condition.
320
if (frame::interpreter_frame_expression_stack_direction() > 0) {
321
return addr <= fr.interpreter_frame_tos_address();
324
return addr >= fr.interpreter_frame_tos_address();
327
static void stack_locals(StackValueCollection* result,
329
const InterpreterOopMap& oop_mask,
331
const stackChunkOop chunk) {
333
assert(result != nullptr, "invariant");
335
for (int i = 0; i < length; ++i) {
336
const intptr_t* addr;
337
if (chunk == nullptr) {
338
addr = fr.interpreter_frame_local_at(i);
339
assert(addr >= fr.sp(), "must be inside the frame");
341
addr = chunk->interpreter_frame_local_at(fr, i);
343
assert(addr != nullptr, "invariant");
345
StackValue* const sv = create_stack_value_from_oop_map(oop_mask, i, addr, chunk);
346
assert(sv != nullptr, "sanity check");
352
static void stack_expressions(StackValueCollection* result,
355
const InterpreterOopMap& oop_mask,
357
const stackChunkOop chunk) {
359
assert(result != nullptr, "invariant");
361
for (int i = 0; i < length; ++i) {
362
const intptr_t* addr;
363
if (chunk == nullptr) {
364
addr = fr.interpreter_frame_expression_stack_at(i);
365
assert(addr != nullptr, "invariant");
366
if (!is_in_expression_stack(fr, addr)) {
367
// Need to ensure no bogus escapes.
371
addr = chunk->interpreter_frame_expression_stack_at(fr, i);
374
StackValue* const sv = create_stack_value_from_oop_map(oop_mask,
378
assert(sv != nullptr, "sanity check");
384
StackValueCollection* interpretedVFrame::locals() const {
385
return stack_data(false);
388
StackValueCollection* interpretedVFrame::expressions() const {
389
return stack_data(true);
393
* Worker routine for fetching references and/or values
394
* for a particular bci in the interpretedVFrame.
396
* Returns data for either "locals" or "expressions",
397
* using bci relative oop_map (oop_mask) information.
399
* @param expressions bool switch controlling what data to return
400
(false == locals / true == expression)
403
StackValueCollection* interpretedVFrame::stack_data(bool expressions) const {
405
InterpreterOopMap oop_mask;
406
method()->mask_for(bci(), &oop_mask);
407
const int mask_len = oop_mask.number_of_entries();
409
// If the method is native, method()->max_locals() is not telling the truth.
410
// For our purposes, max locals instead equals the size of parameters.
411
const int max_locals = method()->is_native() ?
412
method()->size_of_parameters() : method()->max_locals();
414
assert(mask_len >= max_locals, "invariant");
416
const int length = expressions ? mask_len - max_locals : max_locals;
417
assert(length >= 0, "invariant");
419
StackValueCollection* const result = new StackValueCollection(length);
426
stack_expressions(result, length, max_locals, oop_mask, fr(), stack_chunk());
428
stack_locals(result, length, oop_mask, fr(), stack_chunk());
431
assert(length == result->size(), "invariant");
436
void interpretedVFrame::set_locals(StackValueCollection* values) const {
437
if (values == nullptr || values->size() == 0) return;
439
// If the method is native, max_locals is not telling the truth.
440
// maxlocals then equals the size of parameters
441
const int max_locals = method()->is_native() ?
442
method()->size_of_parameters() : method()->max_locals();
444
assert(max_locals == values->size(), "Mismatch between actual stack format and supplied data");
447
for (int i = 0; i < max_locals; i++) {
448
// Find stack location
449
intptr_t *addr = locals_addr_at(i);
451
// Depending on oop/int put it in the right package
452
const StackValue* const sv = values->at(i);
453
assert(sv != nullptr, "sanity check");
454
if (sv->type() == T_OBJECT) {
455
*(oop *) addr = (sv->get_obj())();
457
*addr = sv->get_intptr();
462
// ------------- cChunk --------------
464
entryVFrame::entryVFrame(const frame* fr, const RegisterMap* reg_map, JavaThread* thread)
465
: externalVFrame(fr, reg_map, thread) {}
467
MonitorInfo::MonitorInfo(oop owner, BasicLock* lock, bool eliminated, bool owner_is_scalar_replaced) {
468
Thread* thread = Thread::current();
469
if (!owner_is_scalar_replaced) {
470
_owner = Handle(thread, owner);
471
_owner_klass = Handle();
473
assert(eliminated, "monitor should be eliminated for scalar replaced object");
475
_owner_klass = Handle(thread, owner);
478
_eliminated = eliminated;
479
_owner_is_scalar_replaced = owner_is_scalar_replaced;
483
void vframeStreamCommon::found_bad_method_frame() const {
484
// 6379830 Cut point for an assertion that occasionally fires when
485
// we are using the performance analyzer.
486
// Disable this when testing the analyzer with fastdebug.
487
fatal("invalid bci or invalid scope desc");
491
vframeStream::vframeStream(JavaThread* thread, Handle continuation_scope, bool stop_at_java_call_stub)
492
: vframeStreamCommon(RegisterMap(thread,
493
RegisterMap::UpdateMap::include,
494
RegisterMap::ProcessFrames::include,
495
RegisterMap::WalkContinuation::include)) {
497
_stop_at_java_call_stub = stop_at_java_call_stub;
498
_continuation_scope = continuation_scope;
500
if (!thread->has_last_Java_frame()) {
505
_frame = _thread->last_frame();
506
_cont_entry = _thread->last_continuation();
507
while (!fill_from_frame()) {
508
_frame = _frame.sender(&_reg_map);
512
vframeStream::vframeStream(oop continuation, Handle continuation_scope)
513
: vframeStreamCommon(RegisterMap(continuation, RegisterMap::UpdateMap::include)) {
515
_stop_at_java_call_stub = false;
516
_continuation_scope = continuation_scope;
518
if (!Continuation::has_last_Java_frame(continuation, &_frame, &_reg_map)) {
523
// _chunk = _reg_map.stack_chunk();
524
while (!fill_from_frame()) {
525
_frame = _frame.sender(&_reg_map);
530
// Step back n frames, skip any pseudo frames in between.
531
// This function is used in Class.forName, Class.newInstance, Method.Invoke,
532
// AccessController.doPrivileged.
533
void vframeStreamCommon::security_get_caller_frame(int depth) {
534
assert(depth >= 0, "invalid depth: %d", depth);
535
for (int n = 0; !at_end(); security_next()) {
536
if (!method()->is_ignored_by_security_stack_walk()) {
538
// We have reached the desired depth; return.
541
n++; // this is a non-skipped frame; count it against the depth
544
// NOTE: At this point there were not enough frames on the stack
545
// to walk to depth. Callers of this method have to check for at_end.
549
void vframeStreamCommon::security_next() {
550
if (method()->is_prefixed_native()) {
551
skip_prefixed_method_and_wrappers(); // calls next()
558
void vframeStreamCommon::skip_prefixed_method_and_wrappers() {
561
int method_prefix_count = 0;
562
char** method_prefixes = JvmtiExport::get_all_native_method_prefixes(&method_prefix_count);
563
Klass* prefixed_klass = method()->method_holder();
564
const char* prefixed_name = method()->name()->as_C_string();
565
size_t prefixed_name_len = strlen(prefixed_name);
566
int prefix_index = method_prefix_count-1;
570
if (method()->method_holder() != prefixed_klass) {
571
break; // classes don't match, can't be a wrapper
573
const char* name = method()->name()->as_C_string();
574
size_t name_len = strlen(name);
575
size_t prefix_len = prefixed_name_len - name_len;
576
if (prefix_len <= 0 || strcmp(name, prefixed_name + prefix_len) != 0) {
577
break; // prefixed name isn't prefixed version of method name, can't be a wrapper
579
for (; prefix_index >= 0; --prefix_index) {
580
const char* possible_prefix = method_prefixes[prefix_index];
581
size_t possible_prefix_len = strlen(possible_prefix);
582
if (possible_prefix_len == prefix_len &&
583
strncmp(possible_prefix, prefixed_name, prefix_len) == 0) {
584
break; // matching prefix found
587
if (prefix_index < 0) {
588
break; // didn't find the prefix, can't be a wrapper
590
prefixed_name = name;
591
prefixed_name_len = name_len;
595
javaVFrame* vframeStreamCommon::asJavaVFrame() {
596
javaVFrame* result = nullptr;
597
// FIXME, need to re-do JDK-8271140 and check is_native_frame?
598
if (_mode == compiled_mode && _frame.is_compiled_frame()) {
599
assert(_frame.is_compiled_frame() || _frame.is_native_frame(), "expected compiled Java frame");
600
guarantee(_reg_map.update_map(), "");
602
compiledVFrame* cvf = compiledVFrame::cast(vframe::new_vframe(&_frame, &_reg_map, _thread));
604
guarantee(cvf->cb() == cb(), "wrong code blob");
606
cvf = cvf->at_scope(_decode_offset, _vframe_id); // get the same scope as this stream
608
guarantee(cvf->scope()->decode_offset() == _decode_offset, "wrong scope");
609
guarantee(cvf->scope()->sender_decode_offset() == _sender_decode_offset, "wrong scope");
610
guarantee(cvf->vframe_id() == _vframe_id, "wrong vframe");
614
result = javaVFrame::cast(vframe::new_vframe(&_frame, &_reg_map, _thread));
616
assert(result->method() == method(), "wrong method");
621
void vframe::print(outputStream* output) {
622
if (WizardMode) _fr.print_value_on(output, nullptr);
625
void vframe::print_value(outputStream* output) const {
626
((vframe*)this)->print(output);
630
void entryVFrame::print_value(outputStream* output) const {
631
((entryVFrame*)this)->print(output);
634
void entryVFrame::print(outputStream* output) {
635
vframe::print(output);
636
output->print_cr("C Chunk in between Java");
637
output->print_cr("C link " INTPTR_FORMAT, p2i(_fr.link()));
641
// ------------- javaVFrame --------------
643
static void print_stack_values(outputStream* output, const char* title, StackValueCollection* values) {
644
if (values->is_empty()) return;
645
output->print_cr("\t%s:", title);
650
void javaVFrame::print(outputStream* output) {
651
Thread* current_thread = Thread::current();
652
ResourceMark rm(current_thread);
653
HandleMark hm(current_thread);
655
vframe::print(output);
657
method()->print_value();
659
output->print_cr("\tbci: %d", bci());
661
print_stack_values(output, "locals", locals());
662
print_stack_values(output, "expressions", expressions());
664
GrowableArray<MonitorInfo*>* list = monitors();
665
if (list->is_empty()) return;
666
output->print_cr("\tmonitor list:");
667
for (int index = (list->length()-1); index >= 0; index--) {
668
MonitorInfo* monitor = list->at(index);
669
output->print("\t obj\t");
670
if (monitor->owner_is_scalar_replaced()) {
671
Klass* k = java_lang_Class::as_Klass(monitor->owner_klass());
672
output->print("( is scalar replaced %s)", k->external_name());
673
} else if (monitor->owner() == nullptr) {
674
output->print("( null )");
676
monitor->owner()->print_value();
677
output->print("(owner=" INTPTR_FORMAT ")", p2i(monitor->owner()));
679
if (monitor->eliminated()) {
680
if(is_compiled_frame()) {
681
output->print(" ( lock is eliminated in compiled frame )");
683
output->print(" ( lock is eliminated, frame not compiled )");
687
output->print("\t ");
688
monitor->lock()->print_on(output, monitor->owner());
694
void javaVFrame::print_value(outputStream* output) const {
695
Method* m = method();
696
InstanceKlass* k = m->method_holder();
697
output->print_cr("frame( sp=" INTPTR_FORMAT ", unextended_sp=" INTPTR_FORMAT ", fp=" INTPTR_FORMAT ", pc=" INTPTR_FORMAT ")",
698
p2i(_fr.sp()), p2i(_fr.unextended_sp()), p2i(_fr.fp()), p2i(_fr.pc()));
699
output->print("%s.%s", k->internal_name(), m->name()->as_C_string());
701
if (!m->is_native()) {
702
Symbol* source_name = k->source_file_name();
703
int line_number = m->line_number_from_bci(bci());
704
if (source_name != nullptr && (line_number != -1)) {
705
output->print("(%s:%d)", source_name->as_C_string(), line_number);
708
output->print("(Native Method)");
710
// Check frame size and print warning if it looks suspiciously large
711
if (fr().sp() != nullptr) {
712
RegisterMap map = *register_map();
713
uint size = fr().frame_size();
715
if (size > 8*K) warning("SUSPICIOUSLY LARGE FRAME (%d)", size);
717
if (size > 4*K) warning("SUSPICIOUSLY LARGE FRAME (%d)", size);
722
void javaVFrame::print_activation(int index, outputStream* output) const {
723
// frame number and method
724
output->print("%2d - ", index);
725
((vframe*)this)->print_value();
729
((vframe*)this)->print();
734
// ------------- externalVFrame --------------
736
void externalVFrame::print(outputStream* output) {
737
_fr.print_value_on(output, nullptr);
740
void externalVFrame::print_value(outputStream* output) const {
741
((vframe*)this)->print(output);