lib/TextAPI/MachO/Architecture.cpp

   1 //===- llvm/TextAPI/Architecture.cpp - Architecture -------------*- 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 /// \file
  11 /// \brief Implements the architecture helper functions.
  12 ///
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "llvm/TextAPI/MachO/Architecture.h"
  16 #include "llvm/ADT/StringSwitch.h"
  17 #include "llvm/BinaryFormat/MachO.h"
  18
  19 namespace llvm {
  20 namespace MachO {
  21
  22 Architecture getArchitectureFromCpuType(uint32_t CPUType, uint32_t CPUSubType) {
  23 #define ARCHINFO(Arch, Type, Subtype)                                          \
  24   if (CPUType == (Type) &&                                                     \
  25       (CPUSubType & ~MachO::CPU_SUBTYPE_MASK) == (Subtype))                    \
  26     return Architecture::Arch;
  27 #include "llvm/TextAPI/MachO/Architecture.def"
  28 #undef ARCHINFO
  29
  30   return Architecture::unknown;
  31 }
  32
  33 Architecture getArchitectureFromName(StringRef Name) {
  34   return StringSwitch<Architecture>(Name)
  35 #define ARCHINFO(Arch, Type, Subtype) .Case(#Arch, Architecture::Arch)
  36 #include "llvm/TextAPI/MachO/Architecture.def"
  37 #undef ARCHINFO
  38       .Default(Architecture::unknown);
  39 }
  40
  41 StringRef getArchitectureName(Architecture Arch) {
  42   switch (Arch) {
  43 #define ARCHINFO(Arch, Type, Subtype)                                          \
  44   case Architecture::Arch:                                                     \
  45     return #Arch;
  46 #include "llvm/TextAPI/MachO/Architecture.def"
  47 #undef ARCHINFO
  48   case Architecture::unknown:
  49     return "unknown";
  50   }
  51
  52   // Appease some compilers that cannot figure out that this is a fully covered
  53   // switch statement.
  54   return "unknown";
  55 }
  56
  57 std::pair<uint32_t, uint32_t> getCPUTypeFromArchitecture(Architecture Arch) {
  58   switch (Arch) {
  59 #define ARCHINFO(Arch, Type, Subtype)                                          \
  60   case Architecture::Arch:                                                     \
  61     return std::make_pair(Type, Subtype);
  62 #include "llvm/TextAPI/MachO/Architecture.def"
  63 #undef ARCHINFO
  64   case Architecture::unknown:
  65     return std::make_pair(0, 0);
  66   }
  67
  68   // Appease some compilers that cannot figure out that this is a fully covered
  69   // switch statement.
  70   return std::make_pair(0, 0);
  71 }
  72
  73 raw_ostream &operator<<(raw_ostream &OS, Architecture Arch) {
  74   OS << getArchitectureName(Arch);
  75   return OS;
  76 }
  77
  78 } // end namespace MachO.
  79 } // end namespace llvm.