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50 lines
1.5 KiB
50 lines
1.5 KiB
//===- DWARF.cpp ----------------------------------------------------------===//
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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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#include "Dwarf.h"
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#include "InputFiles.h"
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#include "InputSection.h"
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#include "OutputSegment.h"
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#include <memory>
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using namespace lld;
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using namespace lld::macho;
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using namespace llvm;
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std::unique_ptr<DwarfObject> DwarfObject::create(ObjFile *obj) {
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auto dObj = std::make_unique<DwarfObject>();
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bool hasDwarfInfo = false;
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for (SubsectionMap subsecMap : obj->subsections) {
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for (auto it : subsecMap) {
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InputSection *isec = it.second;
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if (!(isDebugSection(isec->flags) &&
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isec->segname == segment_names::dwarf))
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continue;
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if (isec->name == "__debug_info") {
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dObj->infoSection.Data = toStringRef(isec->data);
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hasDwarfInfo = true;
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continue;
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}
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if (StringRef *s = StringSwitch<StringRef *>(isec->name)
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.Case("__debug_abbrev", &dObj->abbrevSection)
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.Case("__debug_str", &dObj->strSection)
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.Default(nullptr)) {
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*s = toStringRef(isec->data);
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hasDwarfInfo = true;
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}
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}
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}
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if (hasDwarfInfo)
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return dObj;
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return nullptr;
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}
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