c69307e5ee
The current design allows that the object file contents could be mapped by one object file plugin and then used by another. Presumably the idea here was to avoid mapping the same file twice. This becomes an issue when one object file plugin wants to map the file differently from the others. For example, ObjectFileELF needs to map its memory as writable while others likeObjectFileMachO needs it to be mapped read-only. This patch prevents plugins from changing the buffer by passing them is by value rather than by reference. Differential revision: https://reviews.llvm.org/D122944
108 lines
3.6 KiB
C++
108 lines
3.6 KiB
C++
//===-- ObjectFileJIT.h -----------------------------------------*- C++ -*-===//
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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_JIT_OBJECTFILEJIT_H
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#define LLDB_SOURCE_PLUGINS_OBJECTFILE_JIT_OBJECTFILEJIT_H
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#include "lldb/Core/Address.h"
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#include "lldb/Symbol/ObjectFile.h"
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// This class needs to be hidden as eventually belongs in a plugin that
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// will export the ObjectFile protocol
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class ObjectFileJIT : public lldb_private::ObjectFile {
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public:
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ObjectFileJIT(const lldb::ModuleSP &module_sp,
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const lldb::ObjectFileJITDelegateSP &delegate_sp);
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~ObjectFileJIT() override;
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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 "jit"; }
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static llvm::StringRef GetPluginDescriptionStatic() {
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return "JIT code object file";
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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::DataBufferSP 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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// LLVM RTTI support
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static char ID;
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bool isA(const void *ClassID) const override {
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return ClassID == &ID || ObjectFile::isA(ClassID);
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}
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static bool classof(const ObjectFile *obj) { return obj->isA(&ID); }
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// Member Functions
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bool ParseHeader() override;
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bool SetLoadAddress(lldb_private::Target &target, lldb::addr_t value,
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bool value_is_offset) 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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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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size_t ReadSectionData(lldb_private::Section *section,
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lldb::offset_t section_offset, void *dst,
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size_t dst_len) override;
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size_t
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ReadSectionData(lldb_private::Section *section,
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lldb_private::DataExtractor §ion_data) override;
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lldb_private::Address GetEntryPointAddress() override;
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lldb_private::Address GetBaseAddress() override;
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ObjectFile::Type CalculateType() override;
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ObjectFile::Strata CalculateStrata() override;
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// PluginInterface protocol
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llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
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protected:
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lldb::ObjectFileJITDelegateWP m_delegate_wp;
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};
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#endif // LLDB_SOURCE_PLUGINS_OBJECTFILE_JIT_OBJECTFILEJIT_H
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