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494372f27e
Since users typically don't really care about the .dwo / non.dwo distinction, this patch makes it so dwarfdump --debug-<info,...> dumps .debug_info and (if available) also .debug_info.dwo. This simplifies the command line interface (I've removed all dwo-specific dump options) and makes the tool friendlier to use. Differential Revision: https://reviews.llvm.org/D37771 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313207 91177308-0d34-0410-b5e6-96231b3b80d8
106 lines
3.0 KiB
C++
106 lines
3.0 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_DWARF_DWARFDEBUGLOC_H
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#define LLVM_DEBUGINFO_DWARF_DWARFDEBUGLOC_H
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#include "llvm/ADT/Optional.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/DebugInfo/DWARF/DWARFDataExtractor.h"
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#include "llvm/DebugInfo/DWARF/DWARFRelocMap.h"
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#include <cstdint>
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namespace llvm {
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class DWARFUnit;
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class MCRegisterInfo;
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class raw_ostream;
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class DWARFDebugLoc {
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public:
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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<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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/// Dump this list on OS.
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void dump(raw_ostream &OS, bool IsLittleEndian, unsigned AddressSize,
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const MCRegisterInfo *MRI, unsigned Indent) const;
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};
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private:
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using LocationLists = SmallVector<LocationList, 4>;
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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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unsigned AddressSize;
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bool IsLittleEndian;
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public:
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/// Print the location lists found within the debug_loc section.
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void dump(raw_ostream &OS, const MCRegisterInfo *RegInfo) const;
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/// Parse the debug_loc section accessible via the 'data' parameter using the
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/// address size also given in 'data' to interpret the address ranges.
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void parse(const DWARFDataExtractor &data);
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Optional<LocationList> parseOneLocationList(DWARFDataExtractor Data,
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uint32_t *Offset);
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};
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class DWARFDebugLocDWO {
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public:
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struct Entry {
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uint64_t Start;
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uint32_t Length;
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SmallVector<char, 4> Loc;
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};
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struct LocationList {
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unsigned Offset;
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SmallVector<Entry, 2> Entries;
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void dump(raw_ostream &OS, bool IsLittleEndian, unsigned AddressSize,
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const MCRegisterInfo *RegInfo, unsigned Indent) const;
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};
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private:
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using LocationLists = SmallVector<LocationList, 4>;
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LocationLists Locations;
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unsigned AddressSize;
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bool IsLittleEndian;
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public:
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void parse(DataExtractor data);
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void dump(raw_ostream &OS, const MCRegisterInfo *RegInfo) const;
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static Optional<LocationList> parseOneLocationList(DataExtractor Data,
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uint32_t *Offset);
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};
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} // end namespace llvm
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#endif // LLVM_DEBUGINFO_DWARF_DWARFDEBUGLOC_H
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