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//===- DWARFDebugRnglists.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 LLVM_DEBUGINFO_DWARF_DWARFDEBUGRNGLISTS_H
#define LLVM_DEBUGINFO_DWARF_DWARFDEBUGRNGLISTS_H
#include "llvm/ADT/STLFunctionalExtras.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/DebugInfo/DWARF/DWARFAddressRange.h"
#include "llvm/DebugInfo/DWARF/DWARFListTable.h"
#include <cstdint>
namespace llvm {
class Error;
class raw_ostream;
class DWARFUnit;
class DWARFDataExtractor;
struct DIDumpOptions;
namespace object {
struct SectionedAddress;
}
/// A class representing a single range list entry.
struct RangeListEntry : public DWARFListEntryBase {
/// The values making up the range list entry. Most represent a range with
/// a start and end address or a start address and a length. Others are
/// single value base addresses or end-of-list with no values. The unneeded
/// values are semantically undefined, but initialized to 0.
uint64_t Value0;
uint64_t Value1;
Error extract(DWARFDataExtractor Data, uint64_t *OffsetPtr);
void
dump(raw_ostream &OS, uint8_t AddrSize, uint8_t MaxEncodingStringLength,
uint64_t &CurrentBase, DIDumpOptions DumpOpts,
llvm::function_ref<std::optional<object::SectionedAddress>(uint32_t)>
LookupPooledAddress) const;
bool isSentinel() const { return EntryKind == dwarf::DW_RLE_end_of_list; }
};
/// A class representing a single rangelist.
class DWARFDebugRnglist : public DWARFListType<RangeListEntry> {
public:
/// Build a DWARFAddressRangesVector from a rangelist.
DWARFAddressRangesVector getAbsoluteRanges(
std::optional<object::SectionedAddress> BaseAddr, uint8_t AddressByteSize,
function_ref<std::optional<object::SectionedAddress>(uint32_t)>
LookupPooledAddress) const;
/// Build a DWARFAddressRangesVector from a rangelist.
DWARFAddressRangesVector
getAbsoluteRanges(std::optional<object::SectionedAddress> BaseAddr,
DWARFUnit &U) const;
};
class DWARFDebugRnglistTable : public DWARFListTableBase<DWARFDebugRnglist> {
public:
DWARFDebugRnglistTable()
: DWARFListTableBase(/* SectionName = */ ".debug_rnglists",
/* HeaderString = */ "ranges:",
/* ListTypeString = */ "range") {}
};
} // end namespace llvm
#endif // LLVM_DEBUGINFO_DWARF_DWARFDEBUGRNGLISTS_H
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