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// Copyright 2019 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.
#include "src/execution/thread-local-top.h"
#include "src/execution/isolate.h"
#include "src/execution/simulator.h"
#include "src/trap-handler/trap-handler.h"
namespace v8 {
namespace internal {
void ThreadLocalTop::Initialize(Isolate* isolate) {
*this = ThreadLocalTop();
isolate_ = isolate;
#ifdef USE_SIMULATOR
simulator_ = Simulator::current(isolate);
#endif
thread_id_ = ThreadId::Current();
thread_in_wasm_flag_address_ = reinterpret_cast<Address>(
trap_handler::GetThreadInWasmThreadLocalAddress());
}
void ThreadLocalTop::Free() {
// Match unmatched PopPromise calls.
while (promise_on_stack_) isolate_->PopPromise();
}
#if defined(USE_SIMULATOR)
void ThreadLocalTop::StoreCurrentStackPosition() {
last_api_entry_ = simulator_->get_sp();
}
#elif defined(V8_USE_ADDRESS_SANITIZER)
void ThreadLocalTop::StoreCurrentStackPosition() {
last_api_entry_ = reinterpret_cast<Address>(GetCurrentStackPosition());
}
#endif
} // namespace internal
} // namespace v8