lib/TextAPI/MachO/Architecture.cpp

   1 //===- Architecture.cpp ---------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // Implements the architecture helper functions.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "llvm/TextAPI/MachO/Architecture.h"
  14 #include "llvm/ADT/StringSwitch.h"
  15 #include "llvm/BinaryFormat/MachO.h"
  16
  17 namespace llvm {
  18 namespace MachO {
  19
  20 Architecture getArchitectureFromCpuType(uint32_t CPUType, uint32_t CPUSubType) {
  21 #define ARCHINFO(Arch, Type, Subtype)                                          \
  22   if (CPUType == (Type) &&                                                     \
  23       (CPUSubType & ~MachO::CPU_SUBTYPE_MASK) == (Subtype))                    \
  24     return AK_##Arch;
  25 #include "llvm/TextAPI/MachO/Architecture.def"
  26 #undef ARCHINFO
  27
  28   return AK_unknown;
  29 }
  30
  31 Architecture getArchitectureFromName(StringRef Name) {
  32   return StringSwitch<Architecture>(Name)
  33 #define ARCHINFO(Arch, Type, Subtype) .Case(#Arch, AK_##Arch)
  34 #include "llvm/TextAPI/MachO/Architecture.def"
  35 #undef ARCHINFO
  36       .Default(AK_unknown);
  37 }
  38
  39 StringRef getArchitectureName(Architecture Arch) {
  40   switch (Arch) {
  41 #define ARCHINFO(Arch, Type, Subtype)                                          \
  42   case AK_##Arch:                                                              \
  43     return #Arch;
  44 #include "llvm/TextAPI/MachO/Architecture.def"
  45 #undef ARCHINFO
  46   case AK_unknown:
  47     return "unknown";
  48   }
  49
  50   // Appease some compilers that cannot figure out that this is a fully covered
  51   // switch statement.
  52   return "unknown";
  53 }
  54
  55 std::pair<uint32_t, uint32_t> getCPUTypeFromArchitecture(Architecture Arch) {
  56   switch (Arch) {
  57 #define ARCHINFO(Arch, Type, Subtype)                                          \
  58   case AK_##Arch:                                                              \
  59     return std::make_pair(Type, Subtype);
  60 #include "llvm/TextAPI/MachO/Architecture.def"
  61 #undef ARCHINFO
  62   case AK_unknown:
  63     return std::make_pair(0, 0);
  64   }
  65
  66   // Appease some compilers that cannot figure out that this is a fully covered
  67   // switch statement.
  68   return std::make_pair(0, 0);
  69 }
  70
  71 Architecture mapToArchitecture(const Triple &Target) {
  72   return getArchitectureFromName(Target.getArchName());
  73 }
  74
  75 raw_ostream &operator<<(raw_ostream &OS, Architecture Arch) {
  76   OS << getArchitectureName(Arch);
  77   return OS;
  78 }
  79
  80 } // end namespace MachO.
  81 } // end namespace llvm.