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1 //===-- DWARFDebugMacro.h ---------------------------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #ifndef LLVM_DEBUGINFO_DWARF_DWARFDEBUGMACRO_H
11 #define LLVM_DEBUGINFO_DWARF_DWARFDEBUGMACRO_H
12 
13 #include "llvm/ADT/SmallVector.h"
14 #include "llvm/Support/DataExtractor.h"
15 #include "llvm/Support/Dwarf.h"
16 
17 namespace llvm {
18 
19 class raw_ostream;
20 
21 class DWARFDebugMacro {
22   /// A single macro entry within a macro list.
23   struct Entry {
24     /// The type of the macro entry.
25     uint32_t Type;
26     union {
27       /// The source line where the macro is defined.
28       uint64_t Line;
29       /// Vendor extension constant value.
30       uint64_t ExtConstant;
31     };
32 
33     union {
34       /// The string (name, value) of the macro entry.
35       const char *MacroStr;
36       // An unsigned integer indicating the identity of the source file.
37       uint64_t File;
38       /// Vendor extension string.
39       const char *ExtStr;
40     };
41   };
42 
43   typedef SmallVector<Entry, 4> MacroList;
44 
45   /// A list of all the macro entries in the debug_macinfo section.
46   MacroList Macros;
47 
48 public:
DWARFDebugMacro()49   DWARFDebugMacro() {}
50   /// Print the macro list found within the debug_macinfo section.
51   void dump(raw_ostream &OS) const;
52   /// Parse the debug_macinfo section accessible via the 'data' parameter.
53   void parse(DataExtractor data);
54 };
55 
56 }
57 
58 #endif
59