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//===-- DWARFDebugArangeSet.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 LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFDEBUGARANGESET_H
#define LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFDEBUGARANGESET_H
#include "lldb/Core/dwarf.h"
#include <cstdint>
#include <vector>
namespace lldb_private::plugin {
namespace dwarf {
class DWARFDebugArangeSet {
public:
struct Header {
/// The total length of the entries for that set, not including the length
/// field itself.
uint32_t length = 0;
/// The DWARF version number.
uint16_t version = 0;
/// The offset from the beginning of the .debug_info section of the
/// compilation unit entry referenced by the table.
uint32_t cu_offset = 0;
/// The size in bytes of an address on the target architecture. For
/// segmented addressing, this is the size of the offset portion of the
/// address.
uint8_t addr_size = 0;
/// The size in bytes of a segment descriptor on the target architecture.
/// If the target system uses a flat address space, this value is 0.
uint8_t seg_size = 0;
};
struct Descriptor {
dw_addr_t address;
dw_addr_t length;
dw_addr_t end_address() const { return address + length; }
};
DWARFDebugArangeSet();
void Clear();
void SetOffset(uint32_t offset) { m_offset = offset; }
llvm::Error extract(const DWARFDataExtractor &data,
lldb::offset_t *offset_ptr);
dw_offset_t FindAddress(dw_addr_t address) const;
size_t NumDescriptors() const { return m_arange_descriptors.size(); }
const Header &GetHeader() const { return m_header; }
dw_offset_t GetNextOffset() const { return m_next_offset; }
const Descriptor &GetDescriptorRef(uint32_t i) const {
return m_arange_descriptors[i];
}
protected:
typedef std::vector<Descriptor> DescriptorColl;
typedef DescriptorColl::iterator DescriptorIter;
typedef DescriptorColl::const_iterator DescriptorConstIter;
dw_offset_t m_offset;
dw_offset_t m_next_offset;
Header m_header;
DescriptorColl m_arange_descriptors;
};
} // namespace dwarf
} // namespace lldb_private::plugin
#endif // LLDB_SOURCE_PLUGINS_SYMBOLFILE_DWARF_DWARFDEBUGARANGESET_H
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