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 }
416