blob: 3e794922ad1d8d03325127c6a7d40ae3eb293a90 [file] [log] [blame]
//===- DWARF.cpp ----------------------------------------------------------===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "Dwarf.h"
#include "InputFiles.h"
#include "InputSection.h"
#include "OutputSegment.h"
#include <memory>
using namespace lld;
using namespace lld::macho;
using namespace llvm;
std::unique_ptr<DwarfObject> DwarfObject::create(ObjFile *obj) {
auto dObj = std::make_unique<DwarfObject>();
bool hasDwarfInfo = false;
// LLD only needs to extract the source file path from the debug info, so we
// initialize DwarfObject with just the sections necessary to get that path.
// The debugger will locate the debug info via the object file paths that we
// emit in our STABS symbols, so we don't need to process & emit them
// ourselves.
for (InputSection *isec : obj->debugSections) {
if (StringRef *s = StringSwitch<StringRef *>(isec->name)
.Case("__debug_info", &dObj->infoSection.Data)
.Case("__debug_abbrev", &dObj->abbrevSection)
.Case("__debug_str", &dObj->strSection)
.Default(nullptr)) {
*s = toStringRef(isec->data);
hasDwarfInfo = true;
if (hasDwarfInfo)
return dObj;
return nullptr;