Subversion Repositories QNX 8.QNX8 LLVM/Clang compiler suite

//===--------------- SimpleExecutorDylibManager.h ---------------*- C++ -*-===//

//

// 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

//

//===----------------------------------------------------------------------===//

//

// A simple dynamic library management class. Allows dynamic libraries to be

// loaded and searched.

//

// FIXME: The functionality in this file should be moved to the ORC runtime.

//

//===----------------------------------------------------------------------===//

#ifndef LLVM_EXECUTIONENGINE_ORC_TARGETPROCESS_SIMPLEEXECUTORDYLIBMANAGER_H

#define LLVM_EXECUTIONENGINE_ORC_TARGETPROCESS_SIMPLEEXECUTORDYLIBMANAGER_H

#include "llvm/ADT/DenseSet.h"

#include "llvm/ExecutionEngine/Orc/Shared/ExecutorAddress.h"

#include "llvm/ExecutionEngine/Orc/Shared/SimpleRemoteEPCUtils.h"

#include "llvm/ExecutionEngine/Orc/Shared/TargetProcessControlTypes.h"

#include "llvm/ExecutionEngine/Orc/Shared/WrapperFunctionUtils.h"

#include "llvm/ExecutionEngine/Orc/TargetProcess/ExecutorBootstrapService.h"

#include "llvm/Support/DynamicLibrary.h"

#include "llvm/Support/Error.h"

#include <mutex>

namespace llvm {

namespace orc {

namespace rt_bootstrap {

/// Simple page-based allocator.

class SimpleExecutorDylibManager : public ExecutorBootstrapService {

public:

  virtual ~SimpleExecutorDylibManager();

  Expected<tpctypes::DylibHandle> open(const std::string &Path, uint64_t Mode);

  Expected<std::vector<ExecutorAddr>> lookup(tpctypes::DylibHandle H,

                                             const RemoteSymbolLookupSet &L);

  Error shutdown() override;

  void addBootstrapSymbols(StringMap<ExecutorAddr> &M) override;

private:

  using DylibSet = DenseSet<void *>;

  static llvm::orc::shared::CWrapperFunctionResult

  openWrapper(const char *ArgData, size_t ArgSize);

  static llvm::orc::shared::CWrapperFunctionResult

  lookupWrapper(const char *ArgData, size_t ArgSize);

  std::mutex M;

  DylibSet Dylibs;

};

} // end namespace rt_bootstrap

} // end namespace orc

} // end namespace llvm

#endif // LLVM_EXECUTIONENGINE_ORC_TARGETPROCESS_SIMPLEEXECUTORDYLIBMANAGER_H