llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_stoptheworld_fuchsia.cpp

//===-- sanitizer_stoptheworld_fuchsia.cpp -------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===---------------------------------------------------------------------===//
//
// See sanitizer_stoptheworld.h for details.
//
//===---------------------------------------------------------------------===//

#include "sanitizer_platform.h"

#if SANITIZER_FUCHSIA

#include <zircon/sanitizer.h>

#include "sanitizer_stoptheworld.h"

namespace __sanitizer {

// The Fuchsia implementation stops the world but doesn't offer a real
// SuspendedThreadsList argument.  This is enough for ASan's use case,
// and LSan does not use this API on Fuchsia.
void StopTheWorld(StopTheWorldCallback callback, void *argument) {
  struct Params {
    StopTheWorldCallback callback;
    void *argument;
  } params = {callback, argument};
  __sanitizer_memory_snapshot(
      nullptr, nullptr, nullptr, nullptr,
      [](zx_status_t, void *data) {
        auto params = reinterpret_cast<Params *>(data);
        params->callback({}, params->argument);
      },
      &params);
}

}  // namespace __sanitizer

#endif  // SANITIZER_FUCHSIA