forked from OSchip/llvm-project
61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
//===-- DWARFDebugLoc.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_DWARFDEBUGLOC_H
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#define LLVM_DEBUGINFO_DWARFDEBUGLOC_H
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#include "DWARFRelocMap.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/Support/DataExtractor.h"
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namespace llvm {
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class raw_ostream;
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class DWARFDebugLoc {
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/// A single location within a location list.
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struct Entry {
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/// The beginning address of the instruction range.
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uint64_t Begin;
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/// The ending address of the instruction range.
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uint64_t End;
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/// The location of the variable within the specified range.
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SmallVector<unsigned char, 4> Loc;
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};
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/// A list of locations that contain one variable.
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struct LocationList {
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/// The beginning offset where this location list is stored in the debug_loc
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/// section.
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unsigned Offset;
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/// All the locations in which the variable is stored.
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SmallVector<Entry, 2> Entries;
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};
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typedef SmallVector<LocationList, 4> LocationLists;
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/// A list of all the variables in the debug_loc section, each one describing
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/// the locations in which the variable is stored.
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LocationLists Locations;
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/// A map used to resolve binary relocations.
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const RelocAddrMap &RelocMap;
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public:
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DWARFDebugLoc(const RelocAddrMap &LocRelocMap) : RelocMap(LocRelocMap) {}
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/// Print the location lists found within the debug_loc section.
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void dump(raw_ostream &OS) const;
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/// Parse the debug_loc section accessible via the 'data' parameter using the
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/// specified address size to interpret the address ranges.
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void parse(DataExtractor data, unsigned AddressSize);
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};
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}
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#endif
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