08c94c0ac3
Some plugins were returning the number of specifications they have added, while others were returning the total final number. Particularly devious plugins (Minidump) were clearing the specification list altogether. This resulted in nondeterministic failures (depending on plugin ininitialization order) in TestSBModule. This PR defines the problem away by having each plugin only return the specifications it is responsible for. If the caller wants to merge them, it is free to do so. This *might* be slighly less efficient, but this is hardly hot code. I'm not touching the ObjectFile::GetModuleSpecifications function (the caller of all these functions) as the PR is big enough, although the same approach might be warranted there as well. Fixes https://github.com/llvm/llvm-project/issues/178625.
108 lines
3.6 KiB
C++
108 lines
3.6 KiB
C++
//===-- ObjectFilePDB.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_PDB_OBJECTFILEPDB_H
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#define LLDB_SOURCE_PLUGINS_OBJECTFILE_PDB_OBJECTFILEPDB_H
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#include "lldb/Symbol/ObjectFile.h"
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#include "lldb/Utility/ArchSpec.h"
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#include "llvm/DebugInfo/PDB/Native/NativeSession.h"
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#include "llvm/DebugInfo/PDB/PDBTypes.h"
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namespace lldb_private {
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class ObjectFilePDB : public 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 "pdb"; }
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static const char *GetPluginDescriptionStatic() {
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return "PDB object file reader.";
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}
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static std::unique_ptr<llvm::pdb::PDBFile>
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loadPDBFile(std::string PdbPath, llvm::BumpPtrAllocator &Allocator);
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static ObjectFile *CreateInstance(const lldb::ModuleSP &module_sp,
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lldb::DataExtractorSP extractor_sp,
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lldb::offset_t data_offset,
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const FileSpec *file,
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lldb::offset_t file_offset,
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lldb::offset_t length);
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static ObjectFile *CreateMemoryInstance(const lldb::ModuleSP &module_sp,
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lldb::WritableDataBufferSP data_sp,
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const lldb::ProcessSP &process_sp,
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lldb::addr_t header_addr);
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static ModuleSpecList
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GetModuleSpecifications(const FileSpec &file,
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lldb::DataExtractorSP &extractor_sp,
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lldb::offset_t data_offset,
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lldb::offset_t file_offset, lldb::offset_t length);
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// PluginInterface protocol
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llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
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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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// ObjectFile Protocol.
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uint32_t GetAddressByteSize() const override { return 8; }
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lldb::ByteOrder GetByteOrder() const override {
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return lldb::eByteOrderLittle;
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}
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bool ParseHeader() override { return true; }
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bool IsExecutable() const override { return false; }
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void ParseSymtab(lldb_private::Symtab &symtab) override {}
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bool IsStripped() override { return false; }
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// No section in PDB file.
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void CreateSections(SectionList &unified_section_list) override {}
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void Dump(Stream *s) override {}
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ArchSpec GetArchitecture() override;
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UUID GetUUID() override { return m_uuid; }
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uint32_t GetDependentModules(FileSpecList &files) override { return 0; }
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Type CalculateType() override { return eTypeDebugInfo; }
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Strata CalculateStrata() override { return eStrataUser; }
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llvm::pdb::PDBFile &GetPDBFile() { return *m_file_up; }
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ObjectFilePDB(const lldb::ModuleSP &module_sp,
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lldb::DataExtractorSP &extractor_sp, lldb::offset_t data_offset,
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const FileSpec *file, lldb::offset_t offset,
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lldb::offset_t length);
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private:
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UUID m_uuid;
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llvm::BumpPtrAllocator m_allocator;
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std::unique_ptr<llvm::pdb::PDBFile> m_file_up;
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bool initPDBFile();
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};
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} // namespace lldb_private
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#endif // LLDB_SOURCE_PLUGINS_OBJECTFILE_PDB_OBJECTFILEPDB_H
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