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//===-- EPCEHFrameRegistrar.h - EPC based eh-frame registration -*- 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
//
//===----------------------------------------------------------------------===//
//
// ExecutorProcessControl based eh-frame registration.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_EXECUTIONENGINE_ORC_EPCEHFRAMEREGISTRAR_H
#define LLVM_EXECUTIONENGINE_ORC_EPCEHFRAMEREGISTRAR_H
#include "llvm/ExecutionEngine/JITLink/EHFrameSupport.h"
#include "llvm/ExecutionEngine/Orc/Shared/ExecutorAddress.h"
namespace llvm {
namespace orc {
class ExecutionSession;
/// Register/Deregisters EH frames in a remote process via a
/// ExecutorProcessControl instance.
class EPCEHFrameRegistrar : public jitlink::EHFrameRegistrar {
public:
/// Create from a ExecutorProcessControl instance alone. This will use
/// the EPC's lookupSymbols method to find the registration/deregistration
/// function addresses by name.
///
/// If RegistrationFunctionsDylib is non-None then it will be searched to
/// find the registration functions. If it is None then the process dylib
/// will be loaded to find the registration functions.
static Expected<std::unique_ptr<EPCEHFrameRegistrar>>
Create(ExecutionSession &ES);
/// Create a EPCEHFrameRegistrar with the given ExecutorProcessControl
/// object and registration/deregistration function addresses.
EPCEHFrameRegistrar(ExecutionSession &ES,
ExecutorAddr RegisterEHFrameSectionWrapper,
ExecutorAddr DeregisterEHFRameSectionWrapper)
: ES(ES), RegisterEHFrameSectionWrapper(RegisterEHFrameSectionWrapper),
DeregisterEHFrameSectionWrapper(DeregisterEHFRameSectionWrapper) {}
Error registerEHFrames(ExecutorAddrRange EHFrameSection) override;
Error deregisterEHFrames(ExecutorAddrRange EHFrameSection) override;
private:
ExecutionSession &ES;
ExecutorAddr RegisterEHFrameSectionWrapper;
ExecutorAddr DeregisterEHFrameSectionWrapper;
};
} // end namespace orc
} // end namespace llvm
#endif // LLVM_EXECUTIONENGINE_ORC_EPCEHFRAMEREGISTRAR_H
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