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      1 //===--- ARMAttributeParser.h - ARM Attribute 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_SUPPORT_ARMATTRIBUTEPARSER_H
     11 #define LLVM_SUPPORT_ARMATTRIBUTEPARSER_H
     12 
     13 #include "ARMBuildAttributes.h"
     14 #include "ScopedPrinter.h"
     15 
     16 #include <map>
     17 
     18 namespace llvm {
     19 class StringRef;
     20 
     21 class ARMAttributeParser {
     22   ScopedPrinter *SW;
     23 
     24   std::map<unsigned, unsigned> Attributes;
     25 
     26   struct DisplayHandler {
     27     ARMBuildAttrs::AttrType Attribute;
     28     void (ARMAttributeParser::*Routine)(ARMBuildAttrs::AttrType,
     29                                         const uint8_t *, uint32_t &);
     30   };
     31   static const DisplayHandler DisplayRoutines[];
     32 
     33   uint64_t ParseInteger(const uint8_t *Data, uint32_t &Offset);
     34   StringRef ParseString(const uint8_t *Data, uint32_t &Offset);
     35 
     36   void IntegerAttribute(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     37                         uint32_t &Offset);
     38   void StringAttribute(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     39                        uint32_t &Offset);
     40 
     41   void PrintAttribute(unsigned Tag, unsigned Value, StringRef ValueDesc);
     42 
     43   void CPU_arch(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     44                 uint32_t &Offset);
     45   void CPU_arch_profile(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     46                         uint32_t &Offset);
     47   void ARM_ISA_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     48                    uint32_t &Offset);
     49   void THUMB_ISA_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     50                      uint32_t &Offset);
     51   void FP_arch(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     52                uint32_t &Offset);
     53   void WMMX_arch(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     54                  uint32_t &Offset);
     55   void Advanced_SIMD_arch(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     56                           uint32_t &Offset);
     57   void PCS_config(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     58                   uint32_t &Offset);
     59   void ABI_PCS_R9_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     60                       uint32_t &Offset);
     61   void ABI_PCS_RW_data(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     62                        uint32_t &Offset);
     63   void ABI_PCS_RO_data(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     64                        uint32_t &Offset);
     65   void ABI_PCS_GOT_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     66                        uint32_t &Offset);
     67   void ABI_PCS_wchar_t(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     68                        uint32_t &Offset);
     69   void ABI_FP_rounding(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     70                        uint32_t &Offset);
     71   void ABI_FP_denormal(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     72                        uint32_t &Offset);
     73   void ABI_FP_exceptions(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     74                          uint32_t &Offset);
     75   void ABI_FP_user_exceptions(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     76                               uint32_t &Offset);
     77   void ABI_FP_number_model(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     78                            uint32_t &Offset);
     79   void ABI_align_needed(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     80                         uint32_t &Offset);
     81   void ABI_align_preserved(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     82                            uint32_t &Offset);
     83   void ABI_enum_size(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     84                      uint32_t &Offset);
     85   void ABI_HardFP_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     86                       uint32_t &Offset);
     87   void ABI_VFP_args(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     88                     uint32_t &Offset);
     89   void ABI_WMMX_args(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     90                      uint32_t &Offset);
     91   void ABI_optimization_goals(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     92                               uint32_t &Offset);
     93   void ABI_FP_optimization_goals(ARMBuildAttrs::AttrType Tag,
     94                                  const uint8_t *Data, uint32_t &Offset);
     95   void compatibility(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     96                      uint32_t &Offset);
     97   void CPU_unaligned_access(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
     98                             uint32_t &Offset);
     99   void FP_HP_extension(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
    100                        uint32_t &Offset);
    101   void ABI_FP_16bit_format(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
    102                            uint32_t &Offset);
    103   void MPextension_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
    104                        uint32_t &Offset);
    105   void DIV_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
    106                uint32_t &Offset);
    107   void DSP_extension(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
    108                      uint32_t &Offset);
    109   void T2EE_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
    110                 uint32_t &Offset);
    111   void Virtualization_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
    112                           uint32_t &Offset);
    113   void nodefaults(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
    114                   uint32_t &Offset);
    115 
    116   void ParseAttributeList(const uint8_t *Data, uint32_t &Offset,
    117                           uint32_t Length);
    118   void ParseIndexList(const uint8_t *Data, uint32_t &Offset,
    119                       SmallVectorImpl<uint8_t> &IndexList);
    120   void ParseSubsection(const uint8_t *Data, uint32_t Length);
    121 public:
    122   ARMAttributeParser(ScopedPrinter *SW) : SW(SW) {}
    123 
    124   ARMAttributeParser() : SW(nullptr) { }
    125 
    126   void Parse(ArrayRef<uint8_t> Section, bool isLittle);
    127 
    128   bool hasAttribute(unsigned Tag) const {
    129     return Attributes.count(Tag);
    130   }
    131 
    132   unsigned getAttributeValue(unsigned Tag) const {
    133     return Attributes.find(Tag)->second;
    134   }
    135 };
    136 
    137 }
    138 
    139 #endif
    140 
    141