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 Triple::ArchType Triple::getArchTypeForDarwinArchName(const StringRef &Str) {
 143   // See arch(3) and llvm-gcc's driver-driver.c. We don't implement support for
 144   // archs which Darwin doesn't use.
 145
 146   // The matching this routine does is fairly pointless, since it is neither the
 147   // complete architecture list, nor a reasonable subset. The problem is that
 148   // historically the driver driver accepts this and also ties its -march=
 149   // handling to the architecture name, so we need to be careful before removing
 150   // support for it.
 151
 152   // This code must be kept in sync with Clang's Darwin specific argument
 153   // translation.
 154
 155   if (Str == "ppc" || Str == "ppc601" || Str == "ppc603" || Str == "ppc604" ||
 156       Str == "ppc604e" || Str == "ppc750" || Str == "ppc7400" ||
 157       Str == "ppc7450" || Str == "ppc970")
 158     return Triple::ppc;
 159
 160   if (Str == "ppc64")
 161     return Triple::ppc64;
 162
 163   if (Str == "i386" || Str == "i486" || Str == "i486SX" || Str == "pentium" ||
 164       Str == "i586" || Str == "pentpro" || Str == "i686" || Str == "pentIIm3" ||
 165       Str == "pentIIm5" || Str == "pentium4")
 166     return Triple::x86;
 167
 168   if (Str == "x86_64")
 169     return Triple::x86_64;
 170
 171   // This is derived from the driver driver.
 172   if (Str == "arm" || Str == "armv4t" || Str == "armv5" || Str == "xscale" ||
 173       Str == "armv6" || Str == "armv7")
 174     return Triple::arm;
 175
 176   return Triple::UnknownArch;
 177 }
 178
 179 //
 180
 181 void Triple::Parse() const {
 182   assert(!isInitialized() && "Invalid parse call.");
 183
 184   StringRef ArchName = getArchName();
 185   StringRef VendorName = getVendorName();
 186   StringRef OSName = getOSName();
 187
 188   if (ArchName.size() == 4 && ArchName[0] == 'i' &&
 189       ArchName[2] == '8' && ArchName[3] == '6' &&
 190       ArchName[1] - '3' < 6) // i[3-9]86
 191     Arch = x86;
 192   else if (ArchName == "amd64" || ArchName == "x86_64")
 193     Arch = x86_64;
 194   else if (ArchName == "bfin")
 195     Arch = bfin;
 196   else if (ArchName == "pic16")
 197     Arch = pic16;
 198   else if (ArchName == "powerpc")
 199     Arch = ppc;
 200   else if (ArchName == "powerpc64")
 201     Arch = ppc64;
 202   else if (ArchName == "arm" ||
 203            ArchName.startswith("armv") ||
 204            ArchName == "xscale")
 205     Arch = arm;
 206   else if (ArchName == "thumb" ||
 207            ArchName.startswith("thumbv"))
 208     Arch = thumb;
 209   else if (ArchName.startswith("alpha"))
 210     Arch = alpha;
 211   else if (ArchName == "spu" || ArchName == "cellspu")
 212     Arch = cellspu;
 213   else if (ArchName == "msp430")
 214     Arch = msp430;
 215   else if (ArchName == "mips" || ArchName == "mipsallegrex")
 216     Arch = mips;
 217   else if (ArchName == "mipsel" || ArchName == "mipsallegrexel" ||
 218            ArchName == "psp")
 219     Arch = mipsel;
 220   else if (ArchName == "sparc")
 221     Arch = sparc;
 222   else if (ArchName == "s390x")
 223     Arch = systemz;
 224   else if (ArchName == "tce")
 225     Arch = tce;
 226   else if (ArchName == "xcore")
 227     Arch = xcore;
 228   else
 229     Arch = UnknownArch;
 230
 231
 232   // Handle some exceptional cases where the OS / environment components are
 233   // stuck into the vendor field.
 234   if (StringRef(getTriple()).count('-') == 1) {
 235     StringRef VendorName = getVendorName();
 236
 237     if (VendorName.startswith("mingw32")) { // 'i386-mingw32', etc.
 238       Vendor = PC;
 239       OS = MinGW32;
 240       return;
 241     }
 242
 243     // arm-elf is another example, but we don't currently parse anything about
 244     // the environment.
 245   }
 246
 247   if (VendorName == "apple")
 248     Vendor = Apple;
 249   else if (VendorName == "pc")
 250     Vendor = PC;
 251   else
 252     Vendor = UnknownVendor;
 253
 254   if (OSName.startswith("auroraux"))
 255     OS = AuroraUX;
 256   else if (OSName.startswith("cygwin"))
 257     OS = Cygwin;
 258   else if (OSName.startswith("darwin"))
 259     OS = Darwin;
 260   else if (OSName.startswith("dragonfly"))
 261     OS = DragonFly;
 262   else if (OSName.startswith("freebsd"))
 263     OS = FreeBSD;
 264   else if (OSName.startswith("linux"))
 265     OS = Linux;
 266   else if (OSName.startswith("mingw32"))
 267     OS = MinGW32;
 268   else if (OSName.startswith("mingw64"))
 269     OS = MinGW64;
 270   else if (OSName.startswith("netbsd"))
 271     OS = NetBSD;
 272   else if (OSName.startswith("openbsd"))
 273     OS = OpenBSD;
 274   else if (OSName.startswith("solaris"))
 275     OS = Solaris;
 276   else if (OSName.startswith("win32"))
 277     OS = Win32;
 278   else
 279     OS = UnknownOS;
 280
 281   assert(isInitialized() && "Failed to initialize!");
 282 }
 283
 284 StringRef Triple::getArchName() const {
 285   return StringRef(Data).split('-').first;           // Isolate first component
 286 }
 287
 288 StringRef Triple::getVendorName() const {
 289   StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
 290   return Tmp.split('-').first;                       // Isolate second component
 291 }
 292
 293 StringRef Triple::getOSName() const {
 294   StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
 295   Tmp = Tmp.split('-').second;                       // Strip second component
 296   return Tmp.split('-').first;                       // Isolate third component
 297 }
 298
 299 StringRef Triple::getEnvironmentName() const {
 300   StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
 301   Tmp = Tmp.split('-').second;                       // Strip second component
 302   return Tmp.split('-').second;                      // Strip third component
 303 }
 304
 305 StringRef Triple::getOSAndEnvironmentName() const {
 306   StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
 307   return Tmp.split('-').second;                      // Strip second component
 308 }
 309
 310 static unsigned EatNumber(StringRef &Str) {
 311   assert(!Str.empty() && Str[0] >= '0' && Str[0] <= '9' && "Not a number");
 312   unsigned Result = Str[0]-'0';
 313
 314   // Eat the digit.
 315   Str = Str.substr(1);
 316
 317   // Handle "darwin11".
 318   if (Result == 1 && !Str.empty() && Str[0] >= '0' && Str[0] <= '9') {
 319     Result = Result*10 + (Str[0] - '0');
 320     // Eat the digit.
 321     Str = Str.substr(1);
 322   }
 323
 324   return Result;
 325 }
 326
 327 /// getDarwinNumber - Parse the 'darwin number' out of the specific target
 328 /// triple.  For example, if we have darwin8.5 return 8,5,0.  If any entry is
 329 /// not defined, return 0's.  This requires that the triple have an OSType of
 330 /// darwin before it is called.
 331 void Triple::getDarwinNumber(unsigned &Maj, unsigned &Min,
 332                              unsigned &Revision) const {
 333   assert(getOS() == Darwin && "Not a darwin target triple!");
 334   StringRef OSName = getOSName();
 335   assert(OSName.startswith("darwin") && "Unknown darwin target triple!");
 336
 337   // Strip off "darwin".
 338   OSName = OSName.substr(6);
 339
 340   Maj = Min = Revision = 0;
 341
 342   if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
 343     return;
 344
 345   // The major version is the first digit.
 346   Maj = EatNumber(OSName);
 347   if (OSName.empty()) return;
 348
 349   // Handle minor version: 10.4.9 -> darwin8.9.
 350   if (OSName[0] != '.')
 351     return;
 352
 353   // Eat the '.'.
 354   OSName = OSName.substr(1);
 355
 356   if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
 357     return;
 358
 359   Min = EatNumber(OSName);
 360   if (OSName.empty()) return;
 361
 362   // Handle revision darwin8.9.1
 363   if (OSName[0] != '.')
 364     return;
 365
 366   // Eat the '.'.
 367   OSName = OSName.substr(1);
 368
 369   if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
 370     return;
 371
 372   Revision = EatNumber(OSName);
 373 }
 374
 375 void Triple::setTriple(const Twine &Str) {
 376   Data = Str.str();
 377   Arch = InvalidArch;
 378 }
 379
 380 void Triple::setArch(ArchType Kind) {
 381   setArchName(getArchTypeName(Kind));
 382 }
 383
 384 void Triple::setVendor(VendorType Kind) {
 385   setVendorName(getVendorTypeName(Kind));
 386 }
 387
 388 void Triple::setOS(OSType Kind) {
 389   setOSName(getOSTypeName(Kind));
 390 }
 391
 392 void Triple::setArchName(const StringRef &Str) {
 393   setTriple(Str + "-" + getVendorName() + "-" + getOSAndEnvironmentName());
 394 }
 395
 396 void Triple::setVendorName(const StringRef &Str) {
 397   setTriple(getArchName() + "-" + Str + "-" + getOSAndEnvironmentName());
 398 }
 399
 400 void Triple::setOSName(const StringRef &Str) {
 401   if (hasEnvironment())
 402     setTriple(getArchName() + "-" + getVendorName() + "-" + Str +
 403               "-" + getEnvironmentName());
 404   else
 405     setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
 406 }
 407
 408 void Triple::setEnvironmentName(const StringRef &Str) {
 409   setTriple(getArchName() + "-" + getVendorName() + "-" + getOSName() +
 410             "-" + Str);
 411 }
 412
 413 void Triple::setOSAndEnvironmentName(const StringRef &Str) {
 414   setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
 415 }