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//===-- CompileUnitIndex.h --------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLDB_SOURCE_PLUGINS_SYMBOLFILE_NATIVEPDB_COMPILEUNITINDEX_H
#define LLDB_SOURCE_PLUGINS_SYMBOLFILE_NATIVEPDB_COMPILEUNITINDEX_H
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/IntervalMap.h"
#include "llvm/ADT/Optional.h"
#include "llvm/DebugInfo/CodeView/StringsAndChecksums.h"
#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
#include "llvm/DebugInfo/CodeView/TypeIndex.h"
#include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptor.h"
#include "llvm/DebugInfo/PDB/Native/ModuleDebugStream.h"
#include "llvm/DebugInfo/PDB/PDBTypes.h"
#include "PdbSymUid.h"
#include <map>
#include <memory>
namespace lldb_private {
namespace npdb {
class PdbIndex;
/// Represents a single compile unit. This class is useful for collecting the
/// important accessors and information about a compile unit from disparate
/// parts of the PDB into a single place, simplifying acess to compile unit
/// information for the callers.
struct CompilandIndexItem {
CompilandIndexItem(PdbCompilandId m_id,
llvm::pdb::ModuleDebugStreamRef debug_stream,
llvm::pdb::DbiModuleDescriptor descriptor);
// index of this compile unit.
PdbCompilandId m_id;
// debug stream.
llvm::pdb::ModuleDebugStreamRef m_debug_stream;
// dbi module descriptor.
llvm::pdb::DbiModuleDescriptor m_module_descriptor;
llvm::codeview::StringsAndChecksumsRef m_strings;
// List of files which contribute to this compiland.
std::vector<llvm::StringRef> m_file_list;
// Maps virtual address to global symbol id, which can then be used to
// locate the exact compile unit and offset of the symbol. Note that this
// is intentionally an ordered map so that we can find all symbols up to a
// given starting address.
std::map<lldb::addr_t, PdbSymUid> m_symbols_by_va;
// S_COMPILE3 sym describing compilation settings for the module.
llvm::Optional<llvm::codeview::Compile3Sym> m_compile_opts;
// S_OBJNAME sym describing object name.
llvm::Optional<llvm::codeview::ObjNameSym> m_obj_name;
// LF_BUILDINFO sym describing source file name, working directory,
// command line, etc. This usually contains exactly 5 items which
// are references to other strings.
llvm::SmallVector<llvm::codeview::TypeIndex, 5> m_build_info;
};
/// Indexes information about all compile units. This is really just a map of
/// global compile unit index to |CompilandIndexItem| structures.
class CompileUnitIndex {
PdbIndex &m_index;
llvm::DenseMap<uint16_t, std::unique_ptr<CompilandIndexItem>> m_comp_units;
public:
explicit CompileUnitIndex(PdbIndex &index) : m_index(index) {}
CompilandIndexItem &GetOrCreateCompiland(uint16_t modi);
const CompilandIndexItem *GetCompiland(uint16_t modi) const;
CompilandIndexItem *GetCompiland(uint16_t modi);
llvm::SmallString<64> GetMainSourceFile(const CompilandIndexItem &item) const;
};
} // namespace npdb
} // namespace lldb_private
#endif
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