0c6860622c
This PR is in reference to porting LLDB on AIX. Link to discussions on llvm discourse and github: 1. https://discourse.llvm.org/t/port-lldb-to-ibm-aix/80640 2. https://github.com/llvm/llvm-project/issues/101657 The complete changes for porting are present in this draft PR: https://github.com/llvm/llvm-project/pull/102601 Added XCOFF Object File Header Parsing for AIX. Details about XCOFF file format on AIX: [XCOFF](https://www.ibm.com/docs/en/aix/7.3?topic=formats-xcoff-object-file-format)
112 lines
3.8 KiB
C++
112 lines
3.8 KiB
C++
//===-- ObjectFileXCOFF.h --------------------------------------- -*- C++
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//-*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLDB_SOURCE_PLUGINS_OBJECTFILE_XCOFF_OBJECTFILEXCOFF_H
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#define LLDB_SOURCE_PLUGINS_OBJECTFILE_XCOFF_OBJECTFILEXCOFF_H
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#include "lldb/Symbol/ObjectFile.h"
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#include "lldb/Utility/ArchSpec.h"
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#include "lldb/Utility/FileSpec.h"
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#include "lldb/Utility/UUID.h"
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#include "lldb/lldb-private.h"
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#include "llvm/Object/XCOFFObjectFile.h"
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#include <cstdint>
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#include <vector>
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/// \class ObjectFileXCOFF
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/// Generic XCOFF object file reader.
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///
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/// This class provides a generic XCOFF (32/64 bit) reader plugin implementing
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/// the ObjectFile protocol.
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class ObjectFileXCOFF : public lldb_private::ObjectFile {
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public:
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// Static Functions
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static void Initialize();
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static void Terminate();
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static llvm::StringRef GetPluginNameStatic() { return "xcoff"; }
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static llvm::StringRef GetPluginDescriptionStatic() {
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return "XCOFF object file reader.";
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}
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static lldb_private::ObjectFile *
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CreateInstance(const lldb::ModuleSP &module_sp, lldb::DataBufferSP data_sp,
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lldb::offset_t data_offset, const lldb_private::FileSpec *file,
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lldb::offset_t file_offset, lldb::offset_t length);
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static lldb_private::ObjectFile *CreateMemoryInstance(
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const lldb::ModuleSP &module_sp, lldb::WritableDataBufferSP data_sp,
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const lldb::ProcessSP &process_sp, lldb::addr_t header_addr);
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static size_t GetModuleSpecifications(const lldb_private::FileSpec &file,
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lldb::DataBufferSP &data_sp,
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lldb::offset_t data_offset,
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lldb::offset_t file_offset,
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lldb::offset_t length,
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lldb_private::ModuleSpecList &specs);
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static bool MagicBytesMatch(lldb::DataBufferSP &data_sp, lldb::addr_t offset,
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lldb::addr_t length);
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// PluginInterface protocol
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llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
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// ObjectFile Protocol.
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bool ParseHeader() override;
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lldb::ByteOrder GetByteOrder() const override;
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bool IsExecutable() const override;
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uint32_t GetAddressByteSize() const override;
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lldb_private::AddressClass GetAddressClass(lldb::addr_t file_addr) override;
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void ParseSymtab(lldb_private::Symtab &symtab) override;
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bool IsStripped() override;
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void CreateSections(lldb_private::SectionList &unified_section_list) override;
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void Dump(lldb_private::Stream *s) override;
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lldb_private::ArchSpec GetArchitecture() override;
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lldb_private::UUID GetUUID() override;
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uint32_t GetDependentModules(lldb_private::FileSpecList &files) override;
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ObjectFile::Type CalculateType() override;
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ObjectFile::Strata CalculateStrata() override;
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ObjectFileXCOFF(const lldb::ModuleSP &module_sp, lldb::DataBufferSP data_sp,
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lldb::offset_t data_offset,
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const lldb_private::FileSpec *file, lldb::offset_t offset,
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lldb::offset_t length);
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ObjectFileXCOFF(const lldb::ModuleSP &module_sp,
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lldb::DataBufferSP header_data_sp,
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const lldb::ProcessSP &process_sp, lldb::addr_t header_addr);
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protected:
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static lldb::WritableDataBufferSP
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MapFileDataWritable(const lldb_private::FileSpec &file, uint64_t Size,
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uint64_t Offset);
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private:
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bool CreateBinary();
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std::unique_ptr<llvm::object::XCOFFObjectFile> m_binary;
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};
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#endif // LLDB_SOURCE_PLUGINS_OBJECTFILE_XCOFF_OBJECTFILE_H
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