tools/llvm-readobj/ARMWinEHPrinter.h

   1 //===--- ARMWinEHPrinter.h - Windows on ARM Unwind Information Printer ----===//
   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_READOBJ_ARMWINEHPRINTER_H
  11 #define LLVM_READOBJ_ARMWINEHPRINTER_H
  12
  13 #include "StreamWriter.h"
  14 #include "llvm/Object/COFF.h"
  15 #include "llvm/Support/ErrorOr.h"
  16
  17 namespace llvm {
  18 namespace ARM {
  19 namespace WinEH {
  20 class RuntimeFunction;
  21
  22 class Decoder {
  23   static const size_t PDataEntrySize;
  24
  25   StreamWriter &SW;
  26   raw_ostream &OS;
  27
  28   struct RingEntry {
  29     uint8_t Mask;
  30     uint8_t Value;
  31     bool (Decoder::*Routine)(const support::ulittle8_t *, unsigned &, unsigned,
  32                              bool);
  33   };
  34   static const RingEntry Ring[];
  35
  36   bool opcode_0xxxxxxx(const support::ulittle8_t *Opcodes, unsigned &Offset,
  37                        unsigned Length, bool Prologue);
  38   bool opcode_10Lxxxxx(const support::ulittle8_t *Opcodes, unsigned &Offset,
  39                        unsigned Length, bool Prologue);
  40   bool opcode_1100xxxx(const support::ulittle8_t *Opcodes, unsigned &Offset,
  41                        unsigned Length, bool Prologue);
  42   bool opcode_11010Lxx(const support::ulittle8_t *Opcodes, unsigned &Offset,
  43                        unsigned Length, bool Prologue);
  44   bool opcode_11011Lxx(const support::ulittle8_t *Opcodes, unsigned &Offset,
  45                        unsigned Length, bool Prologue);
  46   bool opcode_11100xxx(const support::ulittle8_t *Opcodes, unsigned &Offset,
  47                        unsigned Length, bool Prologue);
  48   bool opcode_111010xx(const support::ulittle8_t *Opcodes, unsigned &Offset,
  49                        unsigned Length, bool Prologue);
  50   bool opcode_1110110L(const support::ulittle8_t *Opcodes, unsigned &Offset,
  51                        unsigned Length, bool Prologue);
  52   bool opcode_11101110(const support::ulittle8_t *Opcodes, unsigned &Offset,
  53                        unsigned Length, bool Prologue);
  54   bool opcode_11101111(const support::ulittle8_t *Opcodes, unsigned &Offset,
  55                        unsigned Length, bool Prologue);
  56   bool opcode_11110101(const support::ulittle8_t *Opcodes, unsigned &Offset,
  57                        unsigned Length, bool Prologue);
  58   bool opcode_11110110(const support::ulittle8_t *Opcodes, unsigned &Offset,
  59                        unsigned Length, bool Prologue);
  60   bool opcode_11110111(const support::ulittle8_t *Opcodes, unsigned &Offset,
  61                        unsigned Length, bool Prologue);
  62   bool opcode_11111000(const support::ulittle8_t *Opcodes, unsigned &Offset,
  63                        unsigned Length, bool Prologue);
  64   bool opcode_11111001(const support::ulittle8_t *Opcodes, unsigned &Offset,
  65                        unsigned Length, bool Prologue);
  66   bool opcode_11111010(const support::ulittle8_t *Opcodes, unsigned &Offset,
  67                        unsigned Length, bool Prologue);
  68   bool opcode_11111011(const support::ulittle8_t *Opcodes, unsigned &Offset,
  69                        unsigned Length, bool Prologue);
  70   bool opcode_11111100(const support::ulittle8_t *Opcodes, unsigned &Offset,
  71                        unsigned Length, bool Prologue);
  72   bool opcode_11111101(const support::ulittle8_t *Opcodes, unsigned &Offset,
  73                        unsigned Length, bool Prologue);
  74   bool opcode_11111110(const support::ulittle8_t *Opcodes, unsigned &Offset,
  75                        unsigned Length, bool Prologue);
  76   bool opcode_11111111(const support::ulittle8_t *Opcodes, unsigned &Offset,
  77                        unsigned Length, bool Prologue);
  78
  79   void decodeOpcodes(ArrayRef<support::ulittle8_t> Opcodes, unsigned Offset,
  80                      bool Prologue);
  81
  82   void printRegisters(const std::pair<uint16_t, uint32_t> &RegisterMask);
  83
  84   ErrorOr<object::SectionRef>
  85   getSectionContaining(const object::COFFObjectFile &COFF, uint64_t Address);
  86
  87   ErrorOr<object::SymbolRef>
  88   getSymbol(const object::COFFObjectFile &COFF, uint64_t Address,
  89             bool FunctionOnly = false);
  90
  91   ErrorOr<object::SymbolRef>
  92   getRelocatedSymbol(const object::COFFObjectFile &COFF,
  93                      const object::SectionRef &Section, uint64_t Offset);
  94
  95   bool dumpXDataRecord(const object::COFFObjectFile &COFF,
  96                        const object::SectionRef &Section,
  97                        uint64_t FunctionAddress, uint64_t VA);
  98   bool dumpUnpackedEntry(const object::COFFObjectFile &COFF,
  99                          const object::SectionRef Section, uint64_t Offset,
 100                          unsigned Index, const RuntimeFunction &Entry);
 101   bool dumpPackedEntry(const object::COFFObjectFile &COFF,
 102                        const object::SectionRef Section, uint64_t Offset,
 103                        unsigned Index, const RuntimeFunction &Entry);
 104   bool dumpProcedureDataEntry(const object::COFFObjectFile &COFF,
 105                               const object::SectionRef Section, unsigned Entry,
 106                               ArrayRef<uint8_t> Contents);
 107   void dumpProcedureData(const object::COFFObjectFile &COFF,
 108                          const object::SectionRef Section);
 109
 110 public:
 111   Decoder(StreamWriter &SW) : SW(SW), OS(SW.getOStream()) {}
 112   std::error_code dumpProcedureData(const object::COFFObjectFile &COFF);
 113 };
 114 }
 115 }
 116 }
 117
 118 #endif
 119