| 1 | //===------ EPCEHFrameRegistrar.cpp - EPC-based eh-frame registration -----===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "llvm/ExecutionEngine/Orc/EPCEHFrameRegistrar.h" |
| 10 | |
| 11 | #include "llvm/ExecutionEngine/Orc/Core.h" |
| 12 | #include "llvm/ExecutionEngine/Orc/Shared/OrcRTBridge.h" |
| 13 | |
| 14 | using namespace llvm::orc::shared; |
| 15 | |
| 16 | namespace llvm { |
| 17 | namespace orc { |
| 18 | |
| 19 | Expected<std::unique_ptr<EPCEHFrameRegistrar>> |
| 20 | EPCEHFrameRegistrar::Create(ExecutionSession &ES) { |
| 21 | |
| 22 | // Lookup addresseses of the registration/deregistration functions in the |
| 23 | // bootstrap map. |
| 24 | ExecutorAddr RegisterEHFrameSectionWrapper; |
| 25 | ExecutorAddr DeregisterEHFrameSectionWrapper; |
| 26 | if (auto Err = ES.getExecutorProcessControl().getBootstrapSymbols( |
| 27 | Pairs: {{RegisterEHFrameSectionWrapper, |
| 28 | rt::RegisterEHFrameSectionWrapperName}, |
| 29 | {DeregisterEHFrameSectionWrapper, |
| 30 | rt::DeregisterEHFrameSectionWrapperName}})) |
| 31 | return std::move(Err); |
| 32 | |
| 33 | return std::make_unique<EPCEHFrameRegistrar>( |
| 34 | args&: ES, args&: RegisterEHFrameSectionWrapper, args&: DeregisterEHFrameSectionWrapper); |
| 35 | } |
| 36 | |
| 37 | Error EPCEHFrameRegistrar::registerEHFrames(ExecutorAddrRange EHFrameSection) { |
| 38 | return ES.callSPSWrapper<void(SPSExecutorAddrRange)>( |
| 39 | WrapperFnAddr: RegisterEHFrameSectionWrapper, WrapperCallArgs&: EHFrameSection); |
| 40 | } |
| 41 | |
| 42 | Error EPCEHFrameRegistrar::deregisterEHFrames( |
| 43 | ExecutorAddrRange EHFrameSection) { |
| 44 | return ES.callSPSWrapper<void(SPSExecutorAddrRange)>( |
| 45 | WrapperFnAddr: DeregisterEHFrameSectionWrapper, WrapperCallArgs&: EHFrameSection); |
| 46 | } |
| 47 | |
| 48 | } // end namespace orc |
| 49 | } // end namespace llvm |
| 50 |