ToolChains.cpp revision 199512 
1//===--- ToolChains.cpp - ToolChain Implementations ---------------------*-===//
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 "ToolChains.h"
11
12#include "clang/Driver/Arg.h"
13#include "clang/Driver/ArgList.h"
14#include "clang/Driver/Driver.h"
15#include "clang/Driver/DriverDiagnostic.h"
16#include "clang/Driver/HostInfo.h"
17#include "clang/Driver/OptTable.h"
18#include "clang/Driver/Option.h"
19#include "clang/Driver/Options.h"
20
21#include "llvm/ADT/StringExtras.h"
22#include "llvm/Support/ErrorHandling.h"
23#include "llvm/Support/raw_ostream.h"
24#include "llvm/System/Path.h"
25
26#include <cstdlib> // ::getenv
27
28using namespace clang::driver;
29using namespace clang::driver::toolchains;
30
31/// Darwin - Darwin tool chain for i386 and x86_64.
32
33Darwin::Darwin(const HostInfo &Host, const llvm::Triple& Triple,
34               const unsigned (&_DarwinVersion)[3], bool _IsIPhoneOS)
35  : ToolChain(Host, Triple),
36    IsIPhoneOS(_IsIPhoneOS)
37{
38  DarwinVersion[0] = _DarwinVersion[0];
39  DarwinVersion[1] = _DarwinVersion[1];
40  DarwinVersion[2] = _DarwinVersion[2];
41
42  llvm::raw_string_ostream(MacosxVersionMin)
43    << "10." << std::max(0, (int)DarwinVersion[0] - 4) << '.'
44    << DarwinVersion[1];
45
46  // FIXME: Lift default up.
47  IPhoneOSVersionMin = "3.0";
48}
49
50DarwinGCC::DarwinGCC(const HostInfo &Host, const llvm::Triple& Triple,
51                     const unsigned (&DarwinVersion)[3],
52                     const unsigned (&_GCCVersion)[3], bool IsIPhoneOS)
53  : Darwin(Host, Triple, DarwinVersion, IsIPhoneOS)
54{
55  GCCVersion[0] = _GCCVersion[0];
56  GCCVersion[1] = _GCCVersion[1];
57  GCCVersion[2] = _GCCVersion[2];
58
59  // Set up the tool chain paths to match gcc.
60  ToolChainDir = "i686-apple-darwin";
61  ToolChainDir += llvm::utostr(DarwinVersion[0]);
62  ToolChainDir += "/";
63  ToolChainDir += llvm::utostr(GCCVersion[0]);
64  ToolChainDir += '.';
65  ToolChainDir += llvm::utostr(GCCVersion[1]);
66  ToolChainDir += '.';
67  ToolChainDir += llvm::utostr(GCCVersion[2]);
68
69  // Try the next major version if that tool chain dir is invalid.
70  std::string Tmp = "/usr/lib/gcc/" + ToolChainDir;
71  if (!llvm::sys::Path(Tmp).exists()) {
72    std::string Next = "i686-apple-darwin";
73    Next += llvm::utostr(DarwinVersion[0] + 1);
74    Next += "/";
75    Next += llvm::utostr(GCCVersion[0]);
76    Next += '.';
77    Next += llvm::utostr(GCCVersion[1]);
78    Next += '.';
79    Next += llvm::utostr(GCCVersion[2]);
80
81    // Use that if it exists, otherwise hope the user isn't linking.
82    //
83    // FIXME: Drop dependency on gcc's tool chain.
84    Tmp = "/usr/lib/gcc/" + Next;
85    if (llvm::sys::Path(Tmp).exists())
86      ToolChainDir = Next;
87  }
88
89  std::string Path;
90  if (getArchName() == "x86_64") {
91    Path = getHost().getDriver().Dir;
92    Path += "/../lib/gcc/";
93    Path += ToolChainDir;
94    Path += "/x86_64";
95    getFilePaths().push_back(Path);
96
97    Path = "/usr/lib/gcc/";
98    Path += ToolChainDir;
99    Path += "/x86_64";
100    getFilePaths().push_back(Path);
101  }
102
103  Path = getHost().getDriver().Dir;
104  Path += "/../lib/gcc/";
105  Path += ToolChainDir;
106  getFilePaths().push_back(Path);
107
108  Path = "/usr/lib/gcc/";
109  Path += ToolChainDir;
110  getFilePaths().push_back(Path);
111
112  Path = getHost().getDriver().Dir;
113  Path += "/../libexec/gcc/";
114  Path += ToolChainDir;
115  getProgramPaths().push_back(Path);
116
117  Path = "/usr/libexec/gcc/";
118  Path += ToolChainDir;
119  getProgramPaths().push_back(Path);
120
121  Path = getHost().getDriver().Dir;
122  Path += "/../libexec";
123  getProgramPaths().push_back(Path);
124
125  getProgramPaths().push_back(getHost().getDriver().Dir);
126}
127
128Darwin::~Darwin() {
129  // Free tool implementations.
130  for (llvm::DenseMap<unsigned, Tool*>::iterator
131         it = Tools.begin(), ie = Tools.end(); it != ie; ++it)
132    delete it->second;
133}
134
135Tool &Darwin::SelectTool(const Compilation &C, const JobAction &JA) const {
136  Action::ActionClass Key;
137  if (getHost().getDriver().ShouldUseClangCompiler(C, JA, getTriple()))
138    Key = Action::AnalyzeJobClass;
139  else
140    Key = JA.getKind();
141
142  Tool *&T = Tools[Key];
143  if (!T) {
144    switch (Key) {
145    case Action::InputClass:
146    case Action::BindArchClass:
147      assert(0 && "Invalid tool kind.");
148    case Action::PreprocessJobClass:
149      T = new tools::darwin::Preprocess(*this); break;
150    case Action::AnalyzeJobClass:
151      T = new tools::Clang(*this); break;
152    case Action::PrecompileJobClass:
153    case Action::CompileJobClass:
154      T = new tools::darwin::Compile(*this); break;
155    case Action::AssembleJobClass:
156      T = new tools::darwin::Assemble(*this); break;
157    case Action::LinkJobClass:
158      T = new tools::darwin::Link(*this); break;
159    case Action::LipoJobClass:
160      T = new tools::darwin::Lipo(*this); break;
161    }
162  }
163
164  return *T;
165}
166
167void DarwinGCC::AddLinkSearchPathArgs(const ArgList &Args,
168                                      ArgStringList &CmdArgs) const {
169  // FIXME: Derive these correctly.
170  if (getArchName() == "x86_64") {
171    CmdArgs.push_back(Args.MakeArgString("-L/usr/lib/gcc/" + ToolChainDir +
172                                         "/x86_64"));
173    // Intentionally duplicated for (temporary) gcc bug compatibility.
174    CmdArgs.push_back(Args.MakeArgString("-L/usr/lib/gcc/" + ToolChainDir +
175                                         "/x86_64"));
176  }
177  CmdArgs.push_back(Args.MakeArgString("-L/usr/lib/" + ToolChainDir));
178  CmdArgs.push_back(Args.MakeArgString("-L/usr/lib/gcc/" + ToolChainDir));
179  // Intentionally duplicated for (temporary) gcc bug compatibility.
180  CmdArgs.push_back(Args.MakeArgString("-L/usr/lib/gcc/" + ToolChainDir));
181  CmdArgs.push_back(Args.MakeArgString("-L/usr/lib/gcc/" + ToolChainDir +
182                                       "/../../../" + ToolChainDir));
183  CmdArgs.push_back(Args.MakeArgString("-L/usr/lib/gcc/" + ToolChainDir +
184                                       "/../../.."));
185}
186
187void DarwinGCC::AddLinkRuntimeLibArgs(const ArgList &Args,
188                                      ArgStringList &CmdArgs) const {
189  unsigned MacosxVersionMin[3];
190  getMacosxVersionMin(Args, MacosxVersionMin);
191
192  // Derived from libgcc and lib specs but refactored.
193  if (Args.hasArg(options::OPT_static)) {
194    CmdArgs.push_back("-lgcc_static");
195  } else {
196    if (Args.hasArg(options::OPT_static_libgcc)) {
197      CmdArgs.push_back("-lgcc_eh");
198    } else if (Args.hasArg(options::OPT_miphoneos_version_min_EQ)) {
199      // Derived from darwin_iphoneos_libgcc spec.
200      if (isIPhoneOS()) {
201        CmdArgs.push_back("-lgcc_s.1");
202      } else {
203        CmdArgs.push_back("-lgcc_s.10.5");
204      }
205    } else if (Args.hasArg(options::OPT_shared_libgcc) ||
206               // FIXME: -fexceptions -fno-exceptions means no exceptions
207               Args.hasArg(options::OPT_fexceptions) ||
208               Args.hasArg(options::OPT_fgnu_runtime)) {
209      // FIXME: This is probably broken on 10.3?
210      if (isMacosxVersionLT(MacosxVersionMin, 10, 5))
211        CmdArgs.push_back("-lgcc_s.10.4");
212      else if (isMacosxVersionLT(MacosxVersionMin, 10, 6))
213        CmdArgs.push_back("-lgcc_s.10.5");
214    } else {
215      if (isMacosxVersionLT(MacosxVersionMin, 10, 3, 9))
216        ; // Do nothing.
217      else if (isMacosxVersionLT(MacosxVersionMin, 10, 5))
218        CmdArgs.push_back("-lgcc_s.10.4");
219      else if (isMacosxVersionLT(MacosxVersionMin, 10, 6))
220        CmdArgs.push_back("-lgcc_s.10.5");
221    }
222
223    if (isIPhoneOS() || isMacosxVersionLT(MacosxVersionMin, 10, 6)) {
224      CmdArgs.push_back("-lgcc");
225      CmdArgs.push_back("-lSystem");
226    } else {
227      CmdArgs.push_back("-lSystem");
228      CmdArgs.push_back("-lgcc");
229    }
230  }
231}
232
233DarwinClang::DarwinClang(const HostInfo &Host, const llvm::Triple& Triple,
234                         const unsigned (&DarwinVersion)[3],
235                         bool IsIPhoneOS)
236  : Darwin(Host, Triple, DarwinVersion, IsIPhoneOS)
237{
238  // Add the relative libexec dir (for clang-cc).
239  //
240  // FIXME: We should sink clang-cc into libexec/clang/<version>/.
241  std::string Path = getHost().getDriver().Dir;
242  Path += "/../libexec";
243  getProgramPaths().push_back(Path);
244
245  // We expect 'as', 'ld', etc. to be adjacent to our install dir.
246  getProgramPaths().push_back(getHost().getDriver().Dir);
247}
248
249void DarwinClang::AddLinkSearchPathArgs(const ArgList &Args,
250                                       ArgStringList &CmdArgs) const {
251  // The Clang toolchain uses explicit paths for internal libraries.
252}
253
254void DarwinClang::AddLinkRuntimeLibArgs(const ArgList &Args,
255                                        ArgStringList &CmdArgs) const {
256  // Check for static linking.
257  if (Args.hasArg(options::OPT_static)) {
258    // FIXME: We need to have compiler-rt available (perhaps as
259    // libclang_static.a) to link against.
260    return;
261  }
262
263  // Reject -static-libgcc for now, we can deal with this when and if someone
264  // cares. This is useful in situations where someone wants to statically link
265  // something like libstdc++, and needs its runtime support routines.
266  if (const Arg *A = Args.getLastArg(options::OPT_static_libgcc)) {
267    getHost().getDriver().Diag(clang::diag::err_drv_unsupported_opt)
268      << A->getAsString(Args);
269    return;
270  }
271
272  // Otherwise link libSystem, which should have the support routines.
273  //
274  // FIXME: This is only true for 10.6 and beyond. Legacy support isn't
275  // critical, but it should work... we should just link in the static
276  // compiler-rt library.
277  CmdArgs.push_back("-lSystem");
278}
279
280void Darwin::getMacosxVersionMin(const ArgList &Args,
281                                 unsigned (&Res)[3]) const {
282  if (Arg *A = Args.getLastArg(options::OPT_mmacosx_version_min_EQ)) {
283    bool HadExtra;
284    if (!Driver::GetReleaseVersion(A->getValue(Args), Res[0], Res[1], Res[2],
285                                   HadExtra) ||
286        HadExtra) {
287      const Driver &D = getHost().getDriver();
288      D.Diag(clang::diag::err_drv_invalid_version_number)
289        << A->getAsString(Args);
290    }
291  } else
292    return getMacosxVersion(Res);
293}
294
295DerivedArgList *Darwin::TranslateArgs(InputArgList &Args,
296                                      const char *BoundArch) const {
297  DerivedArgList *DAL = new DerivedArgList(Args, false);
298  const OptTable &Opts = getHost().getDriver().getOpts();
299
300  // FIXME: We really want to get out of the tool chain level argument
301  // translation business, as it makes the driver functionality much
302  // more opaque. For now, we follow gcc closely solely for the
303  // purpose of easily achieving feature parity & testability. Once we
304  // have something that works, we should reevaluate each translation
305  // and try to push it down into tool specific logic.
306
307  Arg *OSXVersion =
308    Args.getLastArgNoClaim(options::OPT_mmacosx_version_min_EQ);
309  Arg *iPhoneVersion =
310    Args.getLastArgNoClaim(options::OPT_miphoneos_version_min_EQ);
311  if (OSXVersion && iPhoneVersion) {
312    getHost().getDriver().Diag(clang::diag::err_drv_argument_not_allowed_with)
313          << OSXVersion->getAsString(Args)
314          << iPhoneVersion->getAsString(Args);
315  } else if (!OSXVersion && !iPhoneVersion) {
316    // Chose the default version based on the arch.
317    //
318    // FIXME: Are there iPhone overrides for this?
319
320    if (!isIPhoneOS()) {
321      // Look for MACOSX_DEPLOYMENT_TARGET, otherwise use the version
322      // from the host.
323      const char *Version = ::getenv("MACOSX_DEPLOYMENT_TARGET");
324      if (!Version)
325        Version = MacosxVersionMin.c_str();
326      const Option *O = Opts.getOption(options::OPT_mmacosx_version_min_EQ);
327      DAL->append(DAL->MakeJoinedArg(0, O, Version));
328    } else {
329      const char *Version = IPhoneOSVersionMin.c_str();
330      const Option *O = Opts.getOption(options::OPT_miphoneos_version_min_EQ);
331      DAL->append(DAL->MakeJoinedArg(0, O, Version));
332    }
333  }
334
335  for (ArgList::iterator it = Args.begin(), ie = Args.end(); it != ie; ++it) {
336    Arg *A = *it;
337
338    if (A->getOption().matches(options::OPT_Xarch__)) {
339      // FIXME: Canonicalize name.
340      if (getArchName() != A->getValue(Args, 0))
341        continue;
342
343      // FIXME: The arg is leaked here, and we should have a nicer
344      // interface for this.
345      unsigned Prev, Index = Prev = A->getIndex() + 1;
346      Arg *XarchArg = Opts.ParseOneArg(Args, Index);
347
348      // If the argument parsing failed or more than one argument was
349      // consumed, the -Xarch_ argument's parameter tried to consume
350      // extra arguments. Emit an error and ignore.
351      //
352      // We also want to disallow any options which would alter the
353      // driver behavior; that isn't going to work in our model. We
354      // use isDriverOption() as an approximation, although things
355      // like -O4 are going to slip through.
356      if (!XarchArg || Index > Prev + 1 ||
357          XarchArg->getOption().isDriverOption()) {
358       getHost().getDriver().Diag(clang::diag::err_drv_invalid_Xarch_argument)
359          << A->getAsString(Args);
360        continue;
361      }
362
363      XarchArg->setBaseArg(A);
364      A = XarchArg;
365    }
366
367    // Sob. These is strictly gcc compatible for the time being. Apple
368    // gcc translates options twice, which means that self-expanding
369    // options add duplicates.
370    switch ((options::ID) A->getOption().getID()) {
371    default:
372      DAL->append(A);
373      break;
374
375    case options::OPT_mkernel:
376    case options::OPT_fapple_kext:
377      DAL->append(A);
378      DAL->append(DAL->MakeFlagArg(A, Opts.getOption(options::OPT_static)));
379      DAL->append(DAL->MakeFlagArg(A, Opts.getOption(options::OPT_static)));
380      break;
381
382    case options::OPT_dependency_file:
383      DAL->append(DAL->MakeSeparateArg(A, Opts.getOption(options::OPT_MF),
384                                       A->getValue(Args)));
385      break;
386
387    case options::OPT_gfull:
388      DAL->append(DAL->MakeFlagArg(A, Opts.getOption(options::OPT_g_Flag)));
389      DAL->append(DAL->MakeFlagArg(A,
390             Opts.getOption(options::OPT_fno_eliminate_unused_debug_symbols)));
391      break;
392
393    case options::OPT_gused:
394      DAL->append(DAL->MakeFlagArg(A, Opts.getOption(options::OPT_g_Flag)));
395      DAL->append(DAL->MakeFlagArg(A,
396             Opts.getOption(options::OPT_feliminate_unused_debug_symbols)));
397      break;
398
399    case options::OPT_fterminated_vtables:
400    case options::OPT_findirect_virtual_calls:
401      DAL->append(DAL->MakeFlagArg(A,
402                                   Opts.getOption(options::OPT_fapple_kext)));
403      DAL->append(DAL->MakeFlagArg(A, Opts.getOption(options::OPT_static)));
404      break;
405
406    case options::OPT_shared:
407      DAL->append(DAL->MakeFlagArg(A, Opts.getOption(options::OPT_dynamiclib)));
408      break;
409
410    case options::OPT_fconstant_cfstrings:
411      DAL->append(DAL->MakeFlagArg(A,
412                             Opts.getOption(options::OPT_mconstant_cfstrings)));
413      break;
414
415    case options::OPT_fno_constant_cfstrings:
416      DAL->append(DAL->MakeFlagArg(A,
417                          Opts.getOption(options::OPT_mno_constant_cfstrings)));
418      break;
419
420    case options::OPT_Wnonportable_cfstrings:
421      DAL->append(DAL->MakeFlagArg(A,
422                     Opts.getOption(options::OPT_mwarn_nonportable_cfstrings)));
423      break;
424
425    case options::OPT_Wno_nonportable_cfstrings:
426      DAL->append(DAL->MakeFlagArg(A,
427                  Opts.getOption(options::OPT_mno_warn_nonportable_cfstrings)));
428      break;
429
430    case options::OPT_fpascal_strings:
431      DAL->append(DAL->MakeFlagArg(A,
432                                 Opts.getOption(options::OPT_mpascal_strings)));
433      break;
434
435    case options::OPT_fno_pascal_strings:
436      DAL->append(DAL->MakeFlagArg(A,
437                              Opts.getOption(options::OPT_mno_pascal_strings)));
438      break;
439    }
440  }
441
442  if (getTriple().getArch() == llvm::Triple::x86 ||
443      getTriple().getArch() == llvm::Triple::x86_64)
444    if (!Args.hasArgNoClaim(options::OPT_mtune_EQ))
445      DAL->append(DAL->MakeJoinedArg(0, Opts.getOption(options::OPT_mtune_EQ),
446                                     "core2"));
447
448  // Add the arch options based on the particular spelling of -arch, to match
449  // how the driver driver works.
450  if (BoundArch) {
451    llvm::StringRef Name = BoundArch;
452    const Option *MCpu = Opts.getOption(options::OPT_mcpu_EQ);
453    const Option *MArch = Opts.getOption(options::OPT_march_EQ);
454
455    // This code must be kept in sync with LLVM's getArchTypeForDarwinArch,
456    // which defines the list of which architectures we accept.
457    if (Name == "ppc")
458      ;
459    else if (Name == "ppc601")
460      DAL->append(DAL->MakeJoinedArg(0, MCpu, "601"));
461    else if (Name == "ppc603")
462      DAL->append(DAL->MakeJoinedArg(0, MCpu, "603"));
463    else if (Name == "ppc604")
464      DAL->append(DAL->MakeJoinedArg(0, MCpu, "604"));
465    else if (Name == "ppc604e")
466      DAL->append(DAL->MakeJoinedArg(0, MCpu, "604e"));
467    else if (Name == "ppc750")
468      DAL->append(DAL->MakeJoinedArg(0, MCpu, "750"));
469    else if (Name == "ppc7400")
470      DAL->append(DAL->MakeJoinedArg(0, MCpu, "7400"));
471    else if (Name == "ppc7450")
472      DAL->append(DAL->MakeJoinedArg(0, MCpu, "7450"));
473    else if (Name == "ppc970")
474      DAL->append(DAL->MakeJoinedArg(0, MCpu, "970"));
475
476    else if (Name == "ppc64")
477      DAL->append(DAL->MakeFlagArg(0, Opts.getOption(options::OPT_m64)));
478
479    else if (Name == "i386")
480      ;
481    else if (Name == "i486")
482      DAL->append(DAL->MakeJoinedArg(0, MArch, "i486"));
483    else if (Name == "i586")
484      DAL->append(DAL->MakeJoinedArg(0, MArch, "i586"));
485    else if (Name == "i686")
486      DAL->append(DAL->MakeJoinedArg(0, MArch, "i686"));
487    else if (Name == "pentium")
488      DAL->append(DAL->MakeJoinedArg(0, MArch, "pentium"));
489    else if (Name == "pentium2")
490      DAL->append(DAL->MakeJoinedArg(0, MArch, "pentium2"));
491    else if (Name == "pentpro")
492      DAL->append(DAL->MakeJoinedArg(0, MArch, "pentiumpro"));
493    else if (Name == "pentIIm3")
494      DAL->append(DAL->MakeJoinedArg(0, MArch, "pentium2"));
495
496    else if (Name == "x86_64")
497      DAL->append(DAL->MakeFlagArg(0, Opts.getOption(options::OPT_m64)));
498
499    else if (Name == "arm")
500      DAL->append(DAL->MakeJoinedArg(0, MArch, "armv4t"));
501    else if (Name == "armv4t")
502      DAL->append(DAL->MakeJoinedArg(0, MArch, "armv4t"));
503    else if (Name == "armv5")
504      DAL->append(DAL->MakeJoinedArg(0, MArch, "armv5tej"));
505    else if (Name == "xscale")
506      DAL->append(DAL->MakeJoinedArg(0, MArch, "xscale"));
507    else if (Name == "armv6")
508      DAL->append(DAL->MakeJoinedArg(0, MArch, "armv6k"));
509    else if (Name == "armv7")
510      DAL->append(DAL->MakeJoinedArg(0, MArch, "armv7a"));
511
512    else
513      llvm::llvm_unreachable("invalid Darwin arch");
514  }
515
516  return DAL;
517}
518
519bool Darwin::IsMathErrnoDefault() const {
520  return false;
521}
522
523bool Darwin::IsUnwindTablesDefault() const {
524  // FIXME: Gross; we should probably have some separate target
525  // definition, possibly even reusing the one in clang.
526  return getArchName() == "x86_64";
527}
528
529const char *Darwin::GetDefaultRelocationModel() const {
530  return "pic";
531}
532
533const char *Darwin::GetForcedPicModel() const {
534  if (getArchName() == "x86_64")
535    return "pic";
536  return 0;
537}
538
539/// Generic_GCC - A tool chain using the 'gcc' command to perform
540/// all subcommands; this relies on gcc translating the majority of
541/// command line options.
542
543Generic_GCC::Generic_GCC(const HostInfo &Host, const llvm::Triple& Triple)
544  : ToolChain(Host, Triple) {
545  std::string Path(getHost().getDriver().Dir);
546  Path += "/../libexec";
547  getProgramPaths().push_back(Path);
548
549  getProgramPaths().push_back(getHost().getDriver().Dir);
550}
551
552Generic_GCC::~Generic_GCC() {
553  // Free tool implementations.
554  for (llvm::DenseMap<unsigned, Tool*>::iterator
555         it = Tools.begin(), ie = Tools.end(); it != ie; ++it)
556    delete it->second;
557}
558
559Tool &Generic_GCC::SelectTool(const Compilation &C,
560                              const JobAction &JA) const {
561  Action::ActionClass Key;
562  if (getHost().getDriver().ShouldUseClangCompiler(C, JA, getTriple()))
563    Key = Action::AnalyzeJobClass;
564  else
565    Key = JA.getKind();
566
567  Tool *&T = Tools[Key];
568  if (!T) {
569    switch (Key) {
570    case Action::InputClass:
571    case Action::BindArchClass:
572      assert(0 && "Invalid tool kind.");
573    case Action::PreprocessJobClass:
574      T = new tools::gcc::Preprocess(*this); break;
575    case Action::PrecompileJobClass:
576      T = new tools::gcc::Precompile(*this); break;
577    case Action::AnalyzeJobClass:
578      T = new tools::Clang(*this); break;
579    case Action::CompileJobClass:
580      T = new tools::gcc::Compile(*this); break;
581    case Action::AssembleJobClass:
582      T = new tools::gcc::Assemble(*this); break;
583    case Action::LinkJobClass:
584      T = new tools::gcc::Link(*this); break;
585
586      // This is a bit ungeneric, but the only platform using a driver
587      // driver is Darwin.
588    case Action::LipoJobClass:
589      T = new tools::darwin::Lipo(*this); break;
590    }
591  }
592
593  return *T;
594}
595
596bool Generic_GCC::IsMathErrnoDefault() const {
597  return true;
598}
599
600bool Generic_GCC::IsUnwindTablesDefault() const {
601  // FIXME: Gross; we should probably have some separate target
602  // definition, possibly even reusing the one in clang.
603  return getArchName() == "x86_64";
604}
605
606const char *Generic_GCC::GetDefaultRelocationModel() const {
607  return "static";
608}
609
610const char *Generic_GCC::GetForcedPicModel() const {
611  return 0;
612}
613
614DerivedArgList *Generic_GCC::TranslateArgs(InputArgList &Args,
615                                           const char *BoundArch) const {
616  return new DerivedArgList(Args, true);
617}
618
619/// OpenBSD - OpenBSD tool chain which can call as(1) and ld(1) directly.
620
621OpenBSD::OpenBSD(const HostInfo &Host, const llvm::Triple& Triple)
622  : Generic_GCC(Host, Triple) {
623  getFilePaths().push_back(getHost().getDriver().Dir + "/../lib");
624  getFilePaths().push_back("/usr/lib");
625}
626
627Tool &OpenBSD::SelectTool(const Compilation &C, const JobAction &JA) const {
628  Action::ActionClass Key;
629  if (getHost().getDriver().ShouldUseClangCompiler(C, JA, getTriple()))
630    Key = Action::AnalyzeJobClass;
631  else
632    Key = JA.getKind();
633
634  Tool *&T = Tools[Key];
635  if (!T) {
636    switch (Key) {
637    case Action::AssembleJobClass:
638      T = new tools::openbsd::Assemble(*this); break;
639    case Action::LinkJobClass:
640      T = new tools::openbsd::Link(*this); break;
641    default:
642      T = &Generic_GCC::SelectTool(C, JA);
643    }
644  }
645
646  return *T;
647}
648
649/// FreeBSD - FreeBSD tool chain which can call as(1) and ld(1) directly.
650
651FreeBSD::FreeBSD(const HostInfo &Host, const llvm::Triple& Triple, bool Lib32)
652  : Generic_GCC(Host, Triple) {
653  if (Lib32) {
654    getFilePaths().push_back(getHost().getDriver().Dir + "/../lib32");
655    getFilePaths().push_back("/usr/lib32");
656  } else {
657    getFilePaths().push_back(getHost().getDriver().Dir + "/../lib");
658    getFilePaths().push_back("/usr/lib");
659  }
660}
661
662Tool &FreeBSD::SelectTool(const Compilation &C, const JobAction &JA) const {
663  Action::ActionClass Key;
664  if (getHost().getDriver().ShouldUseClangCompiler(C, JA, getTriple()))
665    Key = Action::AnalyzeJobClass;
666  else
667    Key = JA.getKind();
668
669  Tool *&T = Tools[Key];
670  if (!T) {
671    switch (Key) {
672    case Action::AssembleJobClass:
673      T = new tools::freebsd::Assemble(*this); break;
674    case Action::LinkJobClass:
675      T = new tools::freebsd::Link(*this); break;
676    default:
677      T = &Generic_GCC::SelectTool(C, JA);
678    }
679  }
680
681  return *T;
682}
683
684/// AuroraUX - AuroraUX tool chain which can call as(1) and ld(1) directly.
685
686AuroraUX::AuroraUX(const HostInfo &Host, const llvm::Triple& Triple)
687  : Generic_GCC(Host, Triple) {
688
689  // Path mangling to find libexec
690  std::string Path(getHost().getDriver().Dir);
691
692  Path += "/../libexec";
693  getProgramPaths().push_back(Path);
694  getProgramPaths().push_back(getHost().getDriver().Dir);
695
696  getFilePaths().push_back(getHost().getDriver().Dir + "/../lib");
697  getFilePaths().push_back("/usr/lib");
698  getFilePaths().push_back("/usr/sfw/lib");
699  getFilePaths().push_back("/opt/gcc4/lib");
700  getFilePaths().push_back("/opt/gcc4/lib/gcc/i386-pc-solaris2.11/4.2.4");
701
702}
703
704Tool &AuroraUX::SelectTool(const Compilation &C, const JobAction &JA) const {
705  Action::ActionClass Key;
706  if (getHost().getDriver().ShouldUseClangCompiler(C, JA, getTriple()))
707    Key = Action::AnalyzeJobClass;
708  else
709    Key = JA.getKind();
710
711  Tool *&T = Tools[Key];
712  if (!T) {
713    switch (Key) {
714    case Action::AssembleJobClass:
715      T = new tools::auroraux::Assemble(*this); break;
716    case Action::LinkJobClass:
717      T = new tools::auroraux::Link(*this); break;
718    default:
719      T = &Generic_GCC::SelectTool(C, JA);
720    }
721  }
722
723  return *T;
724}
725
726
727/// Linux toolchain (very bare-bones at the moment).
728
729Linux::Linux(const HostInfo &Host, const llvm::Triple& Triple)
730  : Generic_GCC(Host, Triple) {
731  getFilePaths().push_back(getHost().getDriver().Dir + "/../lib/clang/1.0/");
732  getFilePaths().push_back("/lib/");
733  getFilePaths().push_back("/usr/lib/");
734
735  // Depending on the Linux distribution, any combination of lib{,32,64} is
736  // possible. E.g. Debian uses lib and lib32 for mixed i386/x86-64 systems,
737  // openSUSE uses lib and lib64 for the same purpose.
738  getFilePaths().push_back("/lib32/");
739  getFilePaths().push_back("/usr/lib32/");
740  getFilePaths().push_back("/lib64/");
741  getFilePaths().push_back("/usr/lib64/");
742
743  // FIXME: Figure out some way to get gcc's libdir
744  // (e.g. /usr/lib/gcc/i486-linux-gnu/4.3/ for Ubuntu 32-bit); we need
745  // crtbegin.o/crtend.o/etc., and want static versions of various
746  // libraries. If we had our own crtbegin.o/crtend.o/etc, we could probably
747  // get away with using shared versions in /usr/lib, though.
748  // We could fall back to the approach we used for includes (a massive
749  // list), but that's messy at best.
750}
751
752/// DragonFly - DragonFly tool chain which can call as(1) and ld(1) directly.
753
754DragonFly::DragonFly(const HostInfo &Host, const llvm::Triple& Triple)
755  : Generic_GCC(Host, Triple) {
756
757  // Path mangling to find libexec
758  std::string Path(getHost().getDriver().Dir);
759
760  Path += "/../libexec";
761  getProgramPaths().push_back(Path);
762  getProgramPaths().push_back(getHost().getDriver().Dir);
763
764  getFilePaths().push_back(getHost().getDriver().Dir + "/../lib");
765  getFilePaths().push_back("/usr/lib");
766  getFilePaths().push_back("/usr/lib/gcc41");
767}
768
769Tool &DragonFly::SelectTool(const Compilation &C, const JobAction &JA) const {
770  Action::ActionClass Key;
771  if (getHost().getDriver().ShouldUseClangCompiler(C, JA, getTriple()))
772    Key = Action::AnalyzeJobClass;
773  else
774    Key = JA.getKind();
775
776  Tool *&T = Tools[Key];
777  if (!T) {
778    switch (Key) {
779    case Action::AssembleJobClass:
780      T = new tools::dragonfly::Assemble(*this); break;
781    case Action::LinkJobClass:
782      T = new tools::dragonfly::Link(*this); break;
783    default:
784      T = &Generic_GCC::SelectTool(C, JA);
785    }
786  }
787
788  return *T;
789}
790