llvm/llvm/lib/DebugInfo/GSYM/DwarfTransformer.cpp

//===- DwarfTransformer.cpp -----------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//

#include <thread>
#include <unordered_set>

#include "llvm/DebugInfo/DIContext.h"
#include "llvm/DebugInfo/DWARF/DWARFCompileUnit.h"
#include "llvm/DebugInfo/DWARF/DWARFContext.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/ThreadPool.h"
#include "llvm/Support/raw_ostream.h"

#include "llvm/DebugInfo/GSYM/DwarfTransformer.h"
#include "llvm/DebugInfo/GSYM/FunctionInfo.h"
#include "llvm/DebugInfo/GSYM/GsymCreator.h"
#include "llvm/DebugInfo/GSYM/GsymReader.h"
#include "llvm/DebugInfo/GSYM/InlineInfo.h"
#include "llvm/DebugInfo/GSYM/OutputAggregator.h"

#include <optional>

usingnamespacellvm;
usingnamespacegsym;

struct llvm::gsym::CUInfo { … };


static DWARFDie GetParentDeclContextDIE(DWARFDie &Die) { … }

/// Get the GsymCreator string table offset for the qualified name for the
/// DIE passed in. This function will avoid making copies of any strings in
/// the GsymCreator when possible. We don't need to copy a string when the
/// string comes from our .debug_str section or is an inlined string in the
/// .debug_info. If we create a qualified name string in this function by
/// combining multiple strings in the DWARF string table or info, we will make
/// a copy of the string when we add it to the string table.
static std::optional<uint32_t>
getQualifiedNameIndex(DWARFDie &Die, uint64_t Language, GsymCreator &Gsym) { … }

static bool hasInlineInfo(DWARFDie Die, uint32_t Depth) { … }

static AddressRanges
ConvertDWARFRanges(const DWARFAddressRangesVector &DwarfRanges) { … }

static void parseInlineInfo(GsymCreator &Gsym, OutputAggregator &Out,
                            CUInfo &CUI, DWARFDie Die, uint32_t Depth,
                            FunctionInfo &FI, InlineInfo &Parent,
                            const AddressRanges &AllParentRanges,
                            bool &WarnIfEmpty) { … }

static void convertFunctionLineTable(OutputAggregator &Out, CUInfo &CUI,
                                     DWARFDie Die, GsymCreator &Gsym,
                                     FunctionInfo &FI) { … }

void DwarfTransformer::handleDie(OutputAggregator &Out, CUInfo &CUI,
                                 DWARFDie Die) { … }

Error DwarfTransformer::convert(uint32_t NumThreads, OutputAggregator &Out) { … }

llvm::Error DwarfTransformer::verify(StringRef GsymPath,
                                     OutputAggregator &Out) { … }