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//===-- DWARFDebugLoc.h -----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_DEBUGINFO_DWARFDEBUGLOC_H
#define LLVM_DEBUGINFO_DWARFDEBUGLOC_H
#include "DWARFRelocMap.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/DataExtractor.h"
namespace llvm {
class raw_ostream;
class DWARFDebugLoc {
/// A single location within a location list.
struct Entry {
/// The beginning address of the instruction range.
uint64_t Begin;
/// The ending address of the instruction range.
uint64_t End;
/// The location of the variable within the specified range.
SmallVector<unsigned char, 4> Loc;
};
/// A list of locations that contain one variable.
struct LocationList {
/// The beginning offset where this location list is stored in the debug_loc
/// section.
unsigned Offset;
/// All the locations in which the variable is stored.
SmallVector<Entry, 2> Entries;
};
typedef SmallVector<LocationList, 4> LocationLists;
/// A list of all the variables in the debug_loc section, each one describing
/// the locations in which the variable is stored.
LocationLists Locations;
/// A map used to resolve binary relocations.
const RelocAddrMap &RelocMap;
public:
DWARFDebugLoc(const RelocAddrMap &LocRelocMap) : RelocMap(LocRelocMap) {}
/// Print the location lists found within the debug_loc section.
void dump(raw_ostream &OS) const;
/// Parse the debug_loc section accessible via the 'data' parameter using the
/// specified address size to interpret the address ranges.
void parse(DataExtractor data, unsigned AddressSize);
};
class DWARFDebugLocDWO {
struct Entry {
uint64_t Start;
uint32_t Length;
SmallVector<unsigned char, 4> Loc;
};
struct LocationList {
unsigned Offset;
SmallVector<Entry, 2> Entries;
};
typedef SmallVector<LocationList, 4> LocationLists;
LocationLists Locations;
public:
void parse(DataExtractor data);
void dump(raw_ostream &OS) const;
};
}
#endif
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