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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
95 lines
3.2 KiB
C++
95 lines
3.2 KiB
C++
//===-- CompileUnitIndex.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_PLUGINS_SYMBOLFILENATIVEPDB_COMPILEUNITINDEX_H
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#define LLDB_PLUGINS_SYMBOLFILENATIVEPDB_COMPILEUNITINDEX_H
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/DenseSet.h"
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#include "llvm/ADT/IntervalMap.h"
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#include "llvm/ADT/Optional.h"
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#include "llvm/DebugInfo/CodeView/StringsAndChecksums.h"
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#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
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#include "llvm/DebugInfo/CodeView/TypeIndex.h"
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#include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptor.h"
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#include "llvm/DebugInfo/PDB/Native/ModuleDebugStream.h"
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#include "llvm/DebugInfo/PDB/PDBTypes.h"
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#include "PdbSymUid.h"
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#include <map>
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#include <memory>
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namespace lldb_private {
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namespace npdb {
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class PdbIndex;
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/// Represents a single compile unit. This class is useful for collecting the
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/// important accessors and information about a compile unit from disparate
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/// parts of the PDB into a single place, simplifying acess to compile unit
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/// information for the callers.
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struct CompilandIndexItem {
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CompilandIndexItem(PdbCompilandId m_id,
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llvm::pdb::ModuleDebugStreamRef debug_stream,
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llvm::pdb::DbiModuleDescriptor descriptor);
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// index of this compile unit.
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PdbCompilandId m_id;
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// debug stream.
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llvm::pdb::ModuleDebugStreamRef m_debug_stream;
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// dbi module descriptor.
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llvm::pdb::DbiModuleDescriptor m_module_descriptor;
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llvm::codeview::StringsAndChecksumsRef m_strings;
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// List of files which contribute to this compiland.
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std::vector<llvm::StringRef> m_file_list;
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// Maps virtual address to global symbol id, which can then be used to
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// locate the exact compile unit and offset of the symbol. Note that this
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// is intentionally an ordered map so that we can find all symbols up to a
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// given starting address.
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std::map<lldb::addr_t, PdbSymUid> m_symbols_by_va;
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// S_COMPILE3 sym describing compilation settings for the module.
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llvm::Optional<llvm::codeview::Compile3Sym> m_compile_opts;
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// S_OBJNAME sym describing object name.
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llvm::Optional<llvm::codeview::ObjNameSym> m_obj_name;
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// LF_BUILDINFO sym describing source file name, working directory,
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// command line, etc. This usually contains exactly 5 items which
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// are references to other strings.
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llvm::SmallVector<llvm::codeview::TypeIndex, 5> m_build_info;
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};
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/// Indexes information about all compile units. This is really just a map of
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/// global compile unit index to |CompilandIndexItem| structures.
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class CompileUnitIndex {
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PdbIndex &m_index;
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llvm::DenseMap<uint16_t, std::unique_ptr<CompilandIndexItem>> m_comp_units;
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public:
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explicit CompileUnitIndex(PdbIndex &index) : m_index(index) {}
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CompilandIndexItem &GetOrCreateCompiland(uint16_t modi);
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const CompilandIndexItem *GetCompiland(uint16_t modi) const;
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CompilandIndexItem *GetCompiland(uint16_t modi);
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llvm::SmallString<64> GetMainSourceFile(const CompilandIndexItem &item) const;
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};
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} // namespace npdb
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} // namespace lldb_private
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#endif
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