| // Copyright 2010 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_EXECUTION_VM_STATE_INL_H_ |
| #define V8_EXECUTION_VM_STATE_INL_H_ |
| |
| #include "src/execution/isolate.h" |
| #include "src/execution/simulator.h" |
| #include "src/execution/vm-state.h" |
| #include "src/logging/log.h" |
| #include "src/tracing/trace-event.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| // VMState class implementation. A simple stack of VM states held by the logger |
| // and partially threaded through the call stack. States are pushed by VMState |
| // construction and popped by destruction. |
| inline const char* StateToString(StateTag state) { |
| switch (state) { |
| case JS: |
| return "JS"; |
| case GC: |
| return "GC"; |
| case PARSER: |
| return "PARSER"; |
| case BYTECODE_COMPILER: |
| return "BYTECODE_COMPILER"; |
| case COMPILER: |
| return "COMPILER"; |
| case OTHER: |
| return "OTHER"; |
| case EXTERNAL: |
| return "EXTERNAL"; |
| case ATOMICS_WAIT: |
| return "ATOMICS_WAIT"; |
| case IDLE: |
| return "IDLE"; |
| } |
| } |
| |
| template <StateTag Tag> |
| VMState<Tag>::VMState(Isolate* isolate) |
| : isolate_(isolate), previous_tag_(isolate->current_vm_state()) { |
| isolate_->set_current_vm_state(Tag); |
| } |
| |
| template <StateTag Tag> |
| VMState<Tag>::~VMState() { |
| isolate_->set_current_vm_state(previous_tag_); |
| } |
| |
| ExternalCallbackScope::ExternalCallbackScope(Isolate* isolate, Address callback) |
| : callback_(callback), |
| previous_scope_(isolate->external_callback_scope()), |
| vm_state_(isolate), |
| pause_timed_histogram_scope_(isolate->counters()->execute()) { |
| #ifdef USE_SIMULATOR |
| scope_address_ = Simulator::current(isolate)->get_sp(); |
| #endif |
| vm_state_.isolate_->set_external_callback_scope(this); |
| TRACE_EVENT_BEGIN0(TRACE_DISABLED_BY_DEFAULT("v8.runtime"), |
| "V8.ExternalCallback"); |
| } |
| |
| ExternalCallbackScope::~ExternalCallbackScope() { |
| vm_state_.isolate_->set_external_callback_scope(previous_scope_); |
| TRACE_EVENT_END0(TRACE_DISABLED_BY_DEFAULT("v8.runtime"), |
| "V8.ExternalCallback"); |
| } |
| |
| Address ExternalCallbackScope::scope_address() { |
| #ifdef USE_SIMULATOR |
| return scope_address_; |
| #else |
| return reinterpret_cast<Address>(this); |
| #endif |
| } |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_EXECUTION_VM_STATE_INL_H_ |