src/kits/debugger/dwarf/LineNumberProgram.h

   1 /*
   2  * Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef LINE_NUMBER_PROGRAM_H
   6 #define LINE_NUMBER_PROGRAM_H
   7
   8 #include "DataReader.h"
   9 #include "Types.h"
  10
  11
  12 class LineNumberProgram {
  13 public:
  14         struct State;
  15
  16 public:
  17                                                                 LineNumberProgram(uint8 addressSize);
  18                                                                 ~LineNumberProgram();
  19
  20                         status_t                        Init(const void* program, size_t programSize,
  21                                                                         uint8 minInstructionLength,
  22                                                                         bool defaultIsStatement, int8 lineBase,
  23                                                                         uint8 lineRange, uint8 opcodeBase,
  24                                                                         const uint8* standardOpcodeLengths);
  25
  26                         bool                            IsValid() const { return fProgram != NULL; }
  27                         void                            GetInitialState(State& state) const;
  28                         bool                            GetNextRow(State& state) const;
  29
  30 private:
  31                         void                            _SetToInitial(State& state) const;
  32
  33 private:
  34                         const void*                     fProgram;
  35                         size_t                          fProgramSize;
  36                         uint8                           fMinInstructionLength;
  37                         bool                            fDefaultIsStatement;
  38                         int8                            fLineBase;
  39                         uint8                           fLineRange;
  40                         uint8                           fOpcodeBase;
  41                         uint8                           fAddressSize;
  42                         const uint8*            fStandardOpcodeLengths;
  43 };
  44
  45
  46 struct LineNumberProgram::State {
  47         target_addr_t   address;
  48         int32                   file;
  49         int32                   line;
  50         int32                   column;
  51         bool                    isStatement;
  52         bool                    isBasicBlock;
  53         bool                    isSequenceEnd;
  54         bool                    isPrologueEnd;
  55         bool                    isEpilogueBegin;
  56         uint32                  instructionSet;
  57         uint32                  discriminator;
  58
  59         // when file is set to -1
  60         const char*             explicitFile;
  61         uint32                  explicitFileDirIndex;
  62
  63         DataReader              dataReader;
  64 };
  65
  66
  67 #endif  // LINE_NUMBER_PROGRAM_H