lib/Support/Triple.cpp

   1 //===--- Triple.cpp - Target triple helper class --------------------------===//
   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 #include "llvm/ADT/Triple.h"
  11
  12 #include "llvm/ADT/Twine.h"
  13 #include <cassert>
  14 #include <cstring>
  15 using namespace llvm;
  16
  17 //
  18
  19 const char *Triple::getArchTypeName(ArchType Kind) {
  20   switch (Kind) {
  21   case InvalidArch: return "<invalid>";
  22   case UnknownArch: return "unknown";
  23
  24   case alpha:   return "alpha";
  25   case arm:     return "arm";
  26   case bfin:    return "bfin";
  27   case cellspu: return "cellspu";
  28   case mips:    return "mips";
  29   case mipsel:  return "mipsel";
  30   case msp430:  return "msp430";
  31   case pic16:   return "pic16";
  32   case ppc64:   return "powerpc64";
  33   case ppc:     return "powerpc";
  34   case sparc:   return "sparc";
  35   case systemz: return "s390x";
  36   case tce:     return "tce";
  37   case thumb:   return "thumb";
  38   case x86:     return "i386";
  39   case x86_64:  return "x86_64";
  40   case xcore:   return "xcore";
  41   }
  42
  43   return "<invalid>";
  44 }
  45
  46 const char *Triple::getArchTypePrefix(ArchType Kind) {
  47   switch (Kind) {
  48   default:
  49     return 0;
  50
  51   case alpha:   return "alpha";
  52
  53   case arm:
  54   case thumb:   return "arm";
  55
  56   case bfin:    return "bfin";
  57
  58   case cellspu: return "spu";
  59
  60   case ppc64:
  61   case ppc:     return "ppc";
  62
  63   case sparc:   return "sparc";
  64
  65   case x86:
  66   case x86_64:  return "x86";
  67   case xcore:   return "xcore";
  68   }
  69 }
  70
  71 const char *Triple::getVendorTypeName(VendorType Kind) {
  72   switch (Kind) {
  73   case UnknownVendor: return "unknown";
  74
  75   case Apple: return "apple";
  76   case PC: return "pc";
  77   }
  78
  79   return "<invalid>";
  80 }
  81
  82 const char *Triple::getOSTypeName(OSType Kind) {
  83   switch (Kind) {
  84   case UnknownOS: return "unknown";
  85
  86   case AuroraUX: return "auroraux";
  87   case Cygwin: return "cygwin";
  88   case Darwin: return "darwin";
  89   case DragonFly: return "dragonfly";
  90   case FreeBSD: return "freebsd";
  91   case Linux: return "linux";
  92   case MinGW32: return "mingw32";
  93   case MinGW64: return "mingw64";
  94   case NetBSD: return "netbsd";
  95   case OpenBSD: return "openbsd";
  96   case Solaris: return "solaris";
  97   case Win32: return "win32";
  98   }
  99
 100   return "<invalid>";
 101 }
 102
 103 Triple::ArchType Triple::getArchTypeForLLVMName(const StringRef &Name) {
 104   if (Name == "alpha")
 105     return alpha;
 106   if (Name == "arm")
 107     return arm;
 108   if (Name == "bfin")
 109     return bfin;
 110   if (Name == "cellspu")
 111     return cellspu;
 112   if (Name == "mips")
 113     return mips;
 114   if (Name == "mipsel")
 115     return mipsel;
 116   if (Name == "msp430")
 117     return msp430;
 118   if (Name == "pic16")
 119     return pic16;
 120   if (Name == "ppc64")
 121     return ppc64;
 122   if (Name == "ppc")
 123     return ppc;
 124   if (Name == "sparc")
 125     return sparc;
 126   if (Name == "systemz")
 127     return systemz;
 128   if (Name == "tce")
 129     return tce;
 130   if (Name == "thumb")
 131     return thumb;
 132   if (Name == "x86")
 133     return x86;
 134   if (Name == "x86-64")
 135     return x86_64;
 136   if (Name == "xcore")
 137     return xcore;
 138
 139   return UnknownArch;
 140 }
 141
 142 //
 143
 144 void Triple::Parse() const {
 145   assert(!isInitialized() && "Invalid parse call.");
 146
 147   StringRef ArchName = getArchName();
 148   StringRef VendorName = getVendorName();
 149   StringRef OSName = getOSName();
 150
 151   if (ArchName.size() == 4 && ArchName[0] == 'i' &&
 152       ArchName[2] == '8' && ArchName[3] == '6' &&
 153       ArchName[1] - '3' < 6) // i[3-9]86
 154     Arch = x86;
 155   else if (ArchName == "amd64" || ArchName == "x86_64")
 156     Arch = x86_64;
 157   else if (ArchName == "bfin")
 158     Arch = bfin;
 159   else if (ArchName == "pic16")
 160     Arch = pic16;
 161   else if (ArchName == "powerpc")
 162     Arch = ppc;
 163   else if (ArchName == "powerpc64")
 164     Arch = ppc64;
 165   else if (ArchName == "arm" ||
 166            ArchName.startswith("armv") ||
 167            ArchName == "xscale")
 168     Arch = arm;
 169   else if (ArchName == "thumb" ||
 170            ArchName.startswith("thumbv"))
 171     Arch = thumb;
 172   else if (ArchName.startswith("alpha"))
 173     Arch = alpha;
 174   else if (ArchName == "spu" || ArchName == "cellspu")
 175     Arch = cellspu;
 176   else if (ArchName == "msp430")
 177     Arch = msp430;
 178   else if (ArchName == "mips" || ArchName == "mipsallegrex")
 179     Arch = mips;
 180   else if (ArchName == "mipsel" || ArchName == "mipsallegrexel" ||
 181            ArchName == "psp")
 182     Arch = mipsel;
 183   else if (ArchName == "sparc")
 184     Arch = sparc;
 185   else if (ArchName == "s390x")
 186     Arch = systemz;
 187   else if (ArchName == "tce")
 188     Arch = tce;
 189   else if (ArchName == "xcore")
 190     Arch = xcore;
 191   else
 192     Arch = UnknownArch;
 193
 194
 195   // Handle some exceptional cases where the OS / environment components are
 196   // stuck into the vendor field.
 197   if (StringRef(getTriple()).count('-') == 1) {
 198     StringRef VendorName = getVendorName();
 199
 200     if (VendorName.startswith("mingw32")) { // 'i386-mingw32', etc.
 201       Vendor = PC;
 202       OS = MinGW32;
 203       return;
 204     }
 205
 206     // arm-elf is another example, but we don't currently parse anything about
 207     // the environment.
 208   }
 209
 210   if (VendorName == "apple")
 211     Vendor = Apple;
 212   else if (VendorName == "pc")
 213     Vendor = PC;
 214   else
 215     Vendor = UnknownVendor;
 216
 217   if (OSName.startswith("auroraux"))
 218     OS = AuroraUX;
 219   else if (OSName.startswith("cygwin"))
 220     OS = Cygwin;
 221   else if (OSName.startswith("darwin"))
 222     OS = Darwin;
 223   else if (OSName.startswith("dragonfly"))
 224     OS = DragonFly;
 225   else if (OSName.startswith("freebsd"))
 226     OS = FreeBSD;
 227   else if (OSName.startswith("linux"))
 228     OS = Linux;
 229   else if (OSName.startswith("mingw32"))
 230     OS = MinGW32;
 231   else if (OSName.startswith("mingw64"))
 232     OS = MinGW64;
 233   else if (OSName.startswith("netbsd"))
 234     OS = NetBSD;
 235   else if (OSName.startswith("openbsd"))
 236     OS = OpenBSD;
 237   else if (OSName.startswith("solaris"))
 238     OS = Solaris;
 239   else if (OSName.startswith("win32"))
 240     OS = Win32;
 241   else
 242     OS = UnknownOS;
 243
 244   assert(isInitialized() && "Failed to initialize!");
 245 }
 246
 247 StringRef Triple::getArchName() const {
 248   return StringRef(Data).split('-').first;           // Isolate first component
 249 }
 250
 251 StringRef Triple::getVendorName() const {
 252   StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
 253   return Tmp.split('-').first;                       // Isolate second component
 254 }
 255
 256 StringRef Triple::getOSName() const {
 257   StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
 258   Tmp = Tmp.split('-').second;                       // Strip second component
 259   return Tmp.split('-').first;                       // Isolate third component
 260 }
 261
 262 StringRef Triple::getEnvironmentName() const {
 263   StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
 264   Tmp = Tmp.split('-').second;                       // Strip second component
 265   return Tmp.split('-').second;                      // Strip third component
 266 }
 267
 268 StringRef Triple::getOSAndEnvironmentName() const {
 269   StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
 270   return Tmp.split('-').second;                      // Strip second component
 271 }
 272
 273 static unsigned EatNumber(StringRef &Str) {
 274   assert(!Str.empty() && Str[0] >= '0' && Str[0] <= '9' && "Not a number");
 275   unsigned Result = Str[0]-'0';
 276
 277   // Eat the digit.
 278   Str = Str.substr(1);
 279
 280   // Handle "darwin11".
 281   if (Result == 1 && !Str.empty() && Str[0] >= '0' && Str[0] <= '9') {
 282     Result = Result*10 + (Str[0] - '0');
 283     // Eat the digit.
 284     Str = Str.substr(1);
 285   }
 286
 287   return Result;
 288 }
 289
 290 /// getDarwinNumber - Parse the 'darwin number' out of the specific target
 291 /// triple.  For example, if we have darwin8.5 return 8,5,0.  If any entry is
 292 /// not defined, return 0's.  This requires that the triple have an OSType of
 293 /// darwin before it is called.
 294 void Triple::getDarwinNumber(unsigned &Maj, unsigned &Min,
 295                              unsigned &Revision) const {
 296   assert(getOS() == Darwin && "Not a darwin target triple!");
 297   StringRef OSName = getOSName();
 298   assert(OSName.startswith("darwin") && "Unknown darwin target triple!");
 299
 300   // Strip off "darwin".
 301   OSName = OSName.substr(6);
 302
 303   Maj = Min = Revision = 0;
 304
 305   if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
 306     return;
 307
 308   // The major version is the first digit.
 309   Maj = EatNumber(OSName);
 310   if (OSName.empty()) return;
 311
 312   // Handle minor version: 10.4.9 -> darwin8.9.
 313   if (OSName[0] != '.')
 314     return;
 315
 316   // Eat the '.'.
 317   OSName = OSName.substr(1);
 318
 319   if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
 320     return;
 321
 322   Min = EatNumber(OSName);
 323   if (OSName.empty()) return;
 324
 325   // Handle revision darwin8.9.1
 326   if (OSName[0] != '.')
 327     return;
 328
 329   // Eat the '.'.
 330   OSName = OSName.substr(1);
 331
 332   if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
 333     return;
 334
 335   Revision = EatNumber(OSName);
 336 }
 337
 338 void Triple::setTriple(const Twine &Str) {
 339   Data = Str.str();
 340   Arch = InvalidArch;
 341 }
 342
 343 void Triple::setArch(ArchType Kind) {
 344   setArchName(getArchTypeName(Kind));
 345 }
 346
 347 void Triple::setVendor(VendorType Kind) {
 348   setVendorName(getVendorTypeName(Kind));
 349 }
 350
 351 void Triple::setOS(OSType Kind) {
 352   setOSName(getOSTypeName(Kind));
 353 }
 354
 355 void Triple::setArchName(const StringRef &Str) {
 356   setTriple(Str + "-" + getVendorName() + "-" + getOSAndEnvironmentName());
 357 }
 358
 359 void Triple::setVendorName(const StringRef &Str) {
 360   setTriple(getArchName() + "-" + Str + "-" + getOSAndEnvironmentName());
 361 }
 362
 363 void Triple::setOSName(const StringRef &Str) {
 364   if (hasEnvironment())
 365     setTriple(getArchName() + "-" + getVendorName() + "-" + Str +
 366               "-" + getEnvironmentName());
 367   else
 368     setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
 369 }
 370
 371 void Triple::setEnvironmentName(const StringRef &Str) {
 372   setTriple(getArchName() + "-" + getVendorName() + "-" + getOSName() +
 373             "-" + Str);
 374 }
 375
 376 void Triple::setOSAndEnvironmentName(const StringRef &Str) {
 377   setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
 378 }