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  1. //===--- DebugerSupportPlugin.h -- Utils for debugger support ---*- C++ -*-===//
  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. // Generates debug objects and registers them using the jit-loader-gdb protocol.
  10. //
  11. //===----------------------------------------------------------------------===//
  12.  
  13. #ifndef LLVM_EXECUTIONENGINE_ORC_DEBUGGERSUPPORTPLUGIN_H
  14. #define LLVM_EXECUTIONENGINE_ORC_DEBUGGERSUPPORTPLUGIN_H
  15.  
  16. #include "llvm/ExecutionEngine/Orc/Core.h"
  17. #include "llvm/ExecutionEngine/Orc/EPCDebugObjectRegistrar.h"
  18. #include "llvm/ExecutionEngine/Orc/ObjectLinkingLayer.h"
  19.  
  20. namespace llvm {
  21. namespace orc {
  22.  
  23. /// For each object containing debug info, installs JITLink passes to synthesize
  24. /// a debug object and then register it via the GDB JIT-registration interface.
  25. ///
  26. /// Currently MachO only. For ELF use DebugObjectManagerPlugin. These two
  27. /// plugins will be merged in the near future.
  28. class GDBJITDebugInfoRegistrationPlugin : public ObjectLinkingLayer::Plugin {
  29. public:
  30.   class DebugSectionSynthesizer {
  31.   public:
  32.     virtual ~DebugSectionSynthesizer() = default;
  33.     virtual Error startSynthesis() = 0;
  34.     virtual Error completeSynthesisAndRegister() = 0;
  35.   };
  36.  
  37.   static Expected<std::unique_ptr<GDBJITDebugInfoRegistrationPlugin>>
  38.   Create(ExecutionSession &ES, JITDylib &ProcessJD, const Triple &TT);
  39.  
  40.   GDBJITDebugInfoRegistrationPlugin(ExecutorAddr RegisterActionAddr)
  41.       : RegisterActionAddr(RegisterActionAddr) {}
  42.  
  43.   Error notifyFailed(MaterializationResponsibility &MR) override;
  44.   Error notifyRemovingResources(JITDylib &JD, ResourceKey K) override;
  45.  
  46.   void notifyTransferringResources(JITDylib &JD, ResourceKey DstKey,
  47.                                    ResourceKey SrcKey) override;
  48.  
  49.   void modifyPassConfig(MaterializationResponsibility &MR,
  50.                         jitlink::LinkGraph &LG,
  51.                         jitlink::PassConfiguration &PassConfig) override;
  52.  
  53. private:
  54.   void modifyPassConfigForMachO(MaterializationResponsibility &MR,
  55.                                 jitlink::LinkGraph &LG,
  56.                                 jitlink::PassConfiguration &PassConfig);
  57.  
  58.   ExecutorAddr RegisterActionAddr;
  59. };
  60.  
  61. } // namespace orc
  62. } // namespace llvm
  63.  
  64. #endif // LLVM_EXECUTIONENGINE_ORC_DEBUGGERSUPPORTPLUGIN_H
  65.