runtime-utils.cc

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// Copyright 2024 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/runtime/runtime-utils.h"
 
#if V8_ENABLE_WEBASSEMBLY
#include "src/base/logging.h"
#include "src/execution/isolate-inl.h"
#include "src/trap-handler/trap-handler.h"
#endif  // V8_ENABLE_WEBASSEMBLY
 
namespace v8::internal {
 
#if V8_ENABLE_WEBASSEMBLY
SaveAndClearThreadInWasmFlag::SaveAndClearThreadInWasmFlag(Isolate* isolate)
    : isolate_(isolate) {
  DCHECK(isolate_);
  if (trap_handler::IsTrapHandlerEnabled() && trap_handler::IsThreadInWasm()) {
    thread_was_in_wasm_ = true;
    trap_handler::ClearThreadInWasm();
  }
}
 
SaveAndClearThreadInWasmFlag::~SaveAndClearThreadInWasmFlag() {
  if (thread_was_in_wasm_ && !isolate_->has_exception()) {
    trap_handler::SetThreadInWasm();
  }
}
#endif
 
}  // namespace v8::internal