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Issue 1728593002: [Interpreter] Add support for cpu profiler logging. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Rebase Created 4 years, 10 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "src/frames.h" 5 #include "src/frames.h"
6 6
7 #include <sstream> 7 #include <sstream>
8 8
9 #include "src/ast/ast.h" 9 #include "src/ast/ast.h"
10 #include "src/ast/scopeinfo.h" 10 #include "src/ast/scopeinfo.h"
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394 } 394 }
395 } 395 }
396 396
397 397
398 void StackFrame::SetReturnAddressLocationResolver( 398 void StackFrame::SetReturnAddressLocationResolver(
399 ReturnAddressLocationResolver resolver) { 399 ReturnAddressLocationResolver resolver) {
400 DCHECK(return_address_location_resolver_ == NULL); 400 DCHECK(return_address_location_resolver_ == NULL);
401 return_address_location_resolver_ = resolver; 401 return_address_location_resolver_ = resolver;
402 } 402 }
403 403
404 static bool IsInterpreterFramePc(Isolate* isolate, Address pc) {
405 Code* interpreter_entry_trampoline =
406 isolate->builtins()->builtin(Builtins::kInterpreterEntryTrampoline);
407 Code* interpreter_bytecode_dispatch =
408 isolate->builtins()->builtin(Builtins::kInterpreterEnterBytecodeDispatch);
409
410 return (pc >= interpreter_entry_trampoline->instruction_start() &&
411 pc < interpreter_entry_trampoline->instruction_end()) ||
412 (pc >= interpreter_bytecode_dispatch->instruction_start() &&
413 pc < interpreter_bytecode_dispatch->instruction_end());
414 }
404 415
405 StackFrame::Type StackFrame::ComputeType(const StackFrameIteratorBase* iterator, 416 StackFrame::Type StackFrame::ComputeType(const StackFrameIteratorBase* iterator,
406 State* state) { 417 State* state) {
407 DCHECK(state->fp != NULL); 418 DCHECK(state->fp != NULL);
408 419
409 if (!iterator->can_access_heap_objects_) { 420 if (!iterator->can_access_heap_objects_) {
410 // TODO(titzer): "can_access_heap_objects" is kind of bogus. It really 421 // TODO(titzer): "can_access_heap_objects" is kind of bogus. It really
411 // means that we are being called from the profiler, which can interrupt 422 // means that we are being called from the profiler, which can interrupt
412 // the VM with a signal at any arbitrary instruction, with essentially 423 // the VM with a signal at any arbitrary instruction, with essentially
413 // anything on the stack. So basically none of these checks are 100% 424 // anything on the stack. So basically none of these checks are 100%
414 // reliable. 425 // reliable.
415 #if defined(USE_SIMULATOR) 426 #if defined(USE_SIMULATOR)
416 MSAN_MEMORY_IS_INITIALIZED( 427 MSAN_MEMORY_IS_INITIALIZED(
417 state->fp + StandardFrameConstants::kContextOffset, kPointerSize); 428 state->fp + StandardFrameConstants::kContextOffset, kPointerSize);
418 MSAN_MEMORY_IS_INITIALIZED( 429 MSAN_MEMORY_IS_INITIALIZED(
419 state->fp + StandardFrameConstants::kMarkerOffset, kPointerSize); 430 state->fp + StandardFrameConstants::kMarkerOffset, kPointerSize);
420 #endif 431 #endif
421 if (StandardFrame::IsArgumentsAdaptorFrame(state->fp)) { 432 if (StandardFrame::IsArgumentsAdaptorFrame(state->fp)) {
422 // An adapter frame has a special SMI constant for the context and 433 // An adapter frame has a special SMI constant for the context and
423 // is not distinguished through the marker. 434 // is not distinguished through the marker.
424 return ARGUMENTS_ADAPTOR; 435 return ARGUMENTS_ADAPTOR;
425 } 436 }
426 Object* marker = 437 Object* marker =
427 Memory::Object_at(state->fp + StandardFrameConstants::kMarkerOffset); 438 Memory::Object_at(state->fp + StandardFrameConstants::kMarkerOffset);
428 if (marker->IsSmi()) { 439 if (marker->IsSmi()) {
429 return static_cast<StackFrame::Type>(Smi::cast(marker)->value()); 440 return static_cast<StackFrame::Type>(Smi::cast(marker)->value());
441 } else if (FLAG_ignition && IsInterpreterFramePc(iterator->isolate(),
442 *(state->pc_address))) {
443 return INTERPRETED;
430 } else { 444 } else {
431 return JAVA_SCRIPT; 445 return JAVA_SCRIPT;
432 } 446 }
433 } 447 }
434 448
435 // Look up the code object to figure out the type of the stack frame. 449 // Look up the code object to figure out the type of the stack frame.
436 Code* code_obj = GetContainingCode(iterator->isolate(), *(state->pc_address)); 450 Code* code_obj = GetContainingCode(iterator->isolate(), *(state->pc_address));
437 451
438 Object* marker = 452 Object* marker =
439 Memory::Object_at(state->fp + StandardFrameConstants::kMarkerOffset); 453 Memory::Object_at(state->fp + StandardFrameConstants::kMarkerOffset);
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1649 for (StackFrameIterator it(isolate); !it.done(); it.Advance()) { 1663 for (StackFrameIterator it(isolate); !it.done(); it.Advance()) {
1650 StackFrame* frame = AllocateFrameCopy(it.frame(), zone); 1664 StackFrame* frame = AllocateFrameCopy(it.frame(), zone);
1651 list.Add(frame, zone); 1665 list.Add(frame, zone);
1652 } 1666 }
1653 return list.ToVector(); 1667 return list.ToVector();
1654 } 1668 }
1655 1669
1656 1670
1657 } // namespace internal 1671 } // namespace internal
1658 } // namespace v8 1672 } // namespace v8
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