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0cca55d7f5
As was requested in D36313 thread, with this patch section names and uniqueness calculated once, and not every time when a range is dumped. Differential revision: https://reviews.llvm.org/D36740 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@310923 91177308-0d34-0410-b5e6-96231b3b80d8
79 lines
3.8 KiB
C++
79 lines
3.8 KiB
C++
//===- DWARFObject.h --------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===-----------------------------------------------------------------------===/
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#ifndef LLVM_DEBUGINFO_DWARF_DWARFOBJECT_H
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#define LLVM_DEBUGINFO_DWARF_DWARFOBJECT_H
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#include "llvm/DebugInfo/DWARF/DWARFSection.h"
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#include "llvm/Object/ObjectFile.h"
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namespace llvm {
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// This is responsible for low level access to the object file. It
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// knows how to find the required sections and compute relocated
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// values.
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// The default implementations of the get<Section> methods return dummy values.
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// This is to allow clients that only need some of those to implement just the
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// ones they need. We can't use unreachable for as many cases because the parser
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// implementation is eager and will call some of these methods even if the
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// result is not used.
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class DWARFObject {
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DWARFSection Dummy;
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public:
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virtual ~DWARFObject() = default;
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virtual StringRef getFileName() const { llvm_unreachable("unimplemented"); }
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virtual const object::ObjectFile *getFile() const { return nullptr; }
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virtual ArrayRef<SectionName> getSectionNames() const { return {}; }
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virtual bool isLittleEndian() const = 0;
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virtual uint8_t getAddressSize() const { llvm_unreachable("unimplemented"); }
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virtual const DWARFSection &getInfoSection() const { return Dummy; }
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virtual void
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forEachTypesSections(function_ref<void(const DWARFSection &)> F) const {}
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virtual StringRef getAbbrevSection() const { return ""; }
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virtual const DWARFSection &getLocSection() const { return Dummy; }
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virtual StringRef getARangeSection() const { return ""; }
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virtual StringRef getDebugFrameSection() const { return ""; }
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virtual StringRef getEHFrameSection() const { return ""; }
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virtual const DWARFSection &getLineSection() const { return Dummy; }
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virtual StringRef getStringSection() const { return ""; }
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virtual const DWARFSection &getRangeSection() const { return Dummy; }
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virtual StringRef getMacinfoSection() const { return ""; }
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virtual StringRef getPubNamesSection() const { return ""; }
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virtual StringRef getPubTypesSection() const { return ""; }
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virtual StringRef getGnuPubNamesSection() const { return ""; }
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virtual StringRef getGnuPubTypesSection() const { return ""; }
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virtual const DWARFSection &getStringOffsetSection() const { return Dummy; }
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virtual const DWARFSection &getInfoDWOSection() const { return Dummy; }
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virtual void
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forEachTypesDWOSections(function_ref<void(const DWARFSection &)> F) const {}
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virtual StringRef getAbbrevDWOSection() const { return ""; }
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virtual const DWARFSection &getLineDWOSection() const { return Dummy; }
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virtual const DWARFSection &getLocDWOSection() const { return Dummy; }
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virtual StringRef getStringDWOSection() const { return ""; }
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virtual const DWARFSection &getStringOffsetDWOSection() const {
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return Dummy;
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}
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virtual const DWARFSection &getRangeDWOSection() const { return Dummy; }
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virtual const DWARFSection &getAddrSection() const { return Dummy; }
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virtual const DWARFSection &getAppleNamesSection() const { return Dummy; }
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virtual const DWARFSection &getAppleTypesSection() const { return Dummy; }
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virtual const DWARFSection &getAppleNamespacesSection() const {
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return Dummy;
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}
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virtual const DWARFSection &getAppleObjCSection() const { return Dummy; }
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virtual StringRef getCUIndexSection() const { return ""; }
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virtual StringRef getGdbIndexSection() const { return ""; }
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virtual StringRef getTUIndexSection() const { return ""; }
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virtual Optional<RelocAddrEntry> find(const DWARFSection &Sec,
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uint64_t Pos) const = 0;
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};
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} // namespace llvm
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#endif
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