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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 SymbolFileDWARF_DWARFDebugArangeSet_h_
#define SymbolFileDWARF_DWARFDebugArangeSet_h_
#include "SymbolFileDWARF.h"
#include <vector>
class SymbolFileDWARF;
class DWARFDebugArangeSet {
public:
struct Header {
uint32_t length; // The total length of the entries for that set, not
// including the length field itself.
uint16_t version; // The DWARF version number
uint32_t cu_offset; // The offset from the beginning of the .debug_info
// section of the compilation unit entry referenced by
// the table.
uint8_t addr_size; // 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 seg_size; // 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.
};
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; }
void SetHeader(uint16_t version, uint32_t cu_offset, uint8_t addr_size,
uint8_t seg_size);
void AddDescriptor(const DWARFDebugArangeSet::Descriptor &range);
void Compact();
bool Extract(const lldb_private::DWARFDataExtractor &data,
lldb::offset_t *offset_ptr);
void Dump(lldb_private::Stream *s) const;
dw_offset_t GetCompileUnitDIEOffset() const { return m_header.cu_offset; }
dw_offset_t GetOffsetOfNextEntry() const;
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; }
const Descriptor *GetDescriptor(uint32_t i) const {
if (i < m_arange_descriptors.size())
return &m_arange_descriptors[i];
return NULL;
}
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;
uint32_t m_offset;
Header m_header;
DescriptorColl m_arange_descriptors;
};
#endif // SymbolFileDWARF_DWARFDebugArangeSet_h_
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