Driver.cpp revision 218893
1218893Sdim//===--- Driver.cpp - Clang GCC Compatible Driver -------------------------===// 2193326Sed// 3193326Sed// The LLVM Compiler Infrastructure 4193326Sed// 5193326Sed// This file is distributed under the University of Illinois Open Source 6193326Sed// License. See LICENSE.TXT for details. 7193326Sed// 8193326Sed//===----------------------------------------------------------------------===// 9193326Sed 10218893Sdim#ifdef HAVE_CLANG_CONFIG_H 11218893Sdim# include "clang/Config/config.h" 12218893Sdim#endif 13218893Sdim 14193326Sed#include "clang/Driver/Driver.h" 15193326Sed 16193326Sed#include "clang/Driver/Action.h" 17193326Sed#include "clang/Driver/Arg.h" 18193326Sed#include "clang/Driver/ArgList.h" 19193326Sed#include "clang/Driver/Compilation.h" 20193326Sed#include "clang/Driver/DriverDiagnostic.h" 21193326Sed#include "clang/Driver/HostInfo.h" 22193326Sed#include "clang/Driver/Job.h" 23199512Srdivacky#include "clang/Driver/OptTable.h" 24193326Sed#include "clang/Driver/Option.h" 25193326Sed#include "clang/Driver/Options.h" 26193326Sed#include "clang/Driver/Tool.h" 27193326Sed#include "clang/Driver/ToolChain.h" 28193326Sed#include "clang/Driver/Types.h" 29193326Sed 30193326Sed#include "clang/Basic/Version.h" 31193326Sed 32212904Sdim#include "llvm/Config/config.h" 33193326Sed#include "llvm/ADT/StringSet.h" 34202879Srdivacky#include "llvm/ADT/OwningPtr.h" 35193326Sed#include "llvm/Support/PrettyStackTrace.h" 36193326Sed#include "llvm/Support/raw_ostream.h" 37218893Sdim#include "llvm/Support/FileSystem.h" 38218893Sdim#include "llvm/Support/Path.h" 39218893Sdim#include "llvm/Support/Program.h" 40193326Sed 41193326Sed#include "InputInfo.h" 42193326Sed 43193326Sed#include <map> 44193326Sed 45218893Sdim#ifdef __CYGWIN__ 46218893Sdim#include <cygwin/version.h> 47218893Sdim#if defined(CYGWIN_VERSION_DLL_MAJOR) && CYGWIN_VERSION_DLL_MAJOR<1007 48218893Sdim#define IS_CYGWIN15 1 49218893Sdim#endif 50218893Sdim#endif 51218893Sdim 52193326Sedusing namespace clang::driver; 53193326Sedusing namespace clang; 54193326Sed 55212904SdimDriver::Driver(llvm::StringRef _ClangExecutable, 56200583Srdivacky llvm::StringRef _DefaultHostTriple, 57200583Srdivacky llvm::StringRef _DefaultImageName, 58206084Srdivacky bool IsProduction, bool CXXIsProduction, 59206084Srdivacky Diagnostic &_Diags) 60199512Srdivacky : Opts(createDriverOptTable()), Diags(_Diags), 61212904Sdim ClangExecutable(_ClangExecutable), DefaultHostTriple(_DefaultHostTriple), 62193326Sed DefaultImageName(_DefaultImageName), 63204643Srdivacky DriverTitle("clang \"gcc-compatible\" driver"), 64193326Sed Host(0), 65218893Sdim CCPrintOptionsFilename(0), CCPrintHeadersFilename(0), CCCIsCXX(false), 66205408Srdivacky CCCEcho(false), CCCPrintBindings(false), CCPrintOptions(false), 67218893Sdim CCPrintHeaders(false), CCCGenericGCCName("gcc"), 68205408Srdivacky CheckInputsExist(true), CCCUseClang(true), CCCUseClangCXX(true), 69205408Srdivacky CCCUseClangCPP(true), CCCUsePCH(true), SuppressMissingInputWarning(false) { 70198092Srdivacky if (IsProduction) { 71198092Srdivacky // In a "production" build, only use clang on architectures we expect to 72198092Srdivacky // work, and don't use clang C++. 73198092Srdivacky // 74198092Srdivacky // During development its more convenient to always have the driver use 75198092Srdivacky // clang, but we don't want users to be confused when things don't work, or 76198092Srdivacky // to file bugs for things we don't support. 77198092Srdivacky CCCClangArchs.insert(llvm::Triple::x86); 78198092Srdivacky CCCClangArchs.insert(llvm::Triple::x86_64); 79198092Srdivacky CCCClangArchs.insert(llvm::Triple::arm); 80198092Srdivacky 81206084Srdivacky if (!CXXIsProduction) 82206084Srdivacky CCCUseClangCXX = false; 83198092Srdivacky } 84202879Srdivacky 85218893Sdim Name = llvm::sys::path::stem(ClangExecutable); 86218893Sdim Dir = llvm::sys::path::parent_path(ClangExecutable); 87212904Sdim 88202879Srdivacky // Compute the path to the resource directory. 89218893Sdim llvm::StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 90218893Sdim llvm::SmallString<128> P(Dir); 91218893Sdim if (ClangResourceDir != "") 92218893Sdim llvm::sys::path::append(P, ClangResourceDir); 93218893Sdim else 94218893Sdim llvm::sys::path::append(P, "..", "lib", "clang", CLANG_VERSION_STRING); 95202879Srdivacky ResourceDir = P.str(); 96193326Sed} 97193326Sed 98193326SedDriver::~Driver() { 99193326Sed delete Opts; 100193326Sed delete Host; 101193326Sed} 102193326Sed 103198092SrdivackyInputArgList *Driver::ParseArgStrings(const char **ArgBegin, 104193326Sed const char **ArgEnd) { 105193326Sed llvm::PrettyStackTraceString CrashInfo("Command line argument parsing"); 106199512Srdivacky unsigned MissingArgIndex, MissingArgCount; 107199512Srdivacky InputArgList *Args = getOpts().ParseArgs(ArgBegin, ArgEnd, 108199512Srdivacky MissingArgIndex, MissingArgCount); 109198092Srdivacky 110199512Srdivacky // Check for missing argument error. 111199512Srdivacky if (MissingArgCount) 112199512Srdivacky Diag(clang::diag::err_drv_missing_argument) 113199512Srdivacky << Args->getArgString(MissingArgIndex) << MissingArgCount; 114193326Sed 115199512Srdivacky // Check for unsupported options. 116199512Srdivacky for (ArgList::const_iterator it = Args->begin(), ie = Args->end(); 117199512Srdivacky it != ie; ++it) { 118199512Srdivacky Arg *A = *it; 119193326Sed if (A->getOption().isUnsupported()) { 120193326Sed Diag(clang::diag::err_drv_unsupported_opt) << A->getAsString(*Args); 121193326Sed continue; 122193326Sed } 123193326Sed } 124193326Sed 125193326Sed return Args; 126193326Sed} 127193326Sed 128210299SedDerivedArgList *Driver::TranslateInputArgs(const InputArgList &Args) const { 129210299Sed DerivedArgList *DAL = new DerivedArgList(Args); 130210299Sed 131218893Sdim bool HasNostdlib = Args.hasArg(options::OPT_nostdlib); 132210299Sed for (ArgList::const_iterator it = Args.begin(), 133210299Sed ie = Args.end(); it != ie; ++it) { 134210299Sed const Arg *A = *it; 135210299Sed 136210299Sed // Unfortunately, we have to parse some forwarding options (-Xassembler, 137210299Sed // -Xlinker, -Xpreprocessor) because we either integrate their functionality 138210299Sed // (assembler and preprocessor), or bypass a previous driver ('collect2'). 139210299Sed 140210299Sed // Rewrite linker options, to replace --no-demangle with a custom internal 141210299Sed // option. 142210299Sed if ((A->getOption().matches(options::OPT_Wl_COMMA) || 143210299Sed A->getOption().matches(options::OPT_Xlinker)) && 144210299Sed A->containsValue("--no-demangle")) { 145210299Sed // Add the rewritten no-demangle argument. 146210299Sed DAL->AddFlagArg(A, Opts->getOption(options::OPT_Z_Xlinker__no_demangle)); 147210299Sed 148210299Sed // Add the remaining values as Xlinker arguments. 149210299Sed for (unsigned i = 0, e = A->getNumValues(); i != e; ++i) 150210299Sed if (llvm::StringRef(A->getValue(Args, i)) != "--no-demangle") 151210299Sed DAL->AddSeparateArg(A, Opts->getOption(options::OPT_Xlinker), 152210299Sed A->getValue(Args, i)); 153210299Sed 154210299Sed continue; 155210299Sed } 156210299Sed 157210299Sed // Rewrite preprocessor options, to replace -Wp,-MD,FOO which is used by 158210299Sed // some build systems. We don't try to be complete here because we don't 159210299Sed // care to encourage this usage model. 160210299Sed if (A->getOption().matches(options::OPT_Wp_COMMA) && 161210299Sed A->getNumValues() == 2 && 162210299Sed (A->getValue(Args, 0) == llvm::StringRef("-MD") || 163210299Sed A->getValue(Args, 0) == llvm::StringRef("-MMD"))) { 164210299Sed // Rewrite to -MD/-MMD along with -MF. 165210299Sed if (A->getValue(Args, 0) == llvm::StringRef("-MD")) 166210299Sed DAL->AddFlagArg(A, Opts->getOption(options::OPT_MD)); 167210299Sed else 168210299Sed DAL->AddFlagArg(A, Opts->getOption(options::OPT_MMD)); 169210299Sed DAL->AddSeparateArg(A, Opts->getOption(options::OPT_MF), 170210299Sed A->getValue(Args, 1)); 171210299Sed continue; 172210299Sed } 173210299Sed 174218893Sdim // Rewrite reserved library names. 175218893Sdim if (A->getOption().matches(options::OPT_l)) { 176218893Sdim llvm::StringRef Value = A->getValue(Args); 177218893Sdim 178218893Sdim // Rewrite unless -nostdlib is present. 179218893Sdim if (!HasNostdlib && Value == "stdc++") { 180218893Sdim DAL->AddFlagArg(A, Opts->getOption( 181218893Sdim options::OPT_Z_reserved_lib_stdcxx)); 182218893Sdim continue; 183218893Sdim } 184218893Sdim 185218893Sdim // Rewrite unconditionally. 186218893Sdim if (Value == "cc_kext") { 187218893Sdim DAL->AddFlagArg(A, Opts->getOption( 188218893Sdim options::OPT_Z_reserved_lib_cckext)); 189218893Sdim continue; 190218893Sdim } 191218893Sdim } 192218893Sdim 193210299Sed DAL->append(*it); 194210299Sed } 195210299Sed 196212904Sdim // Add a default value of -mlinker-version=, if one was given and the user 197212904Sdim // didn't specify one. 198212904Sdim#if defined(HOST_LINK_VERSION) 199212904Sdim if (!Args.hasArg(options::OPT_mlinker_version_EQ)) { 200212904Sdim DAL->AddJoinedArg(0, Opts->getOption(options::OPT_mlinker_version_EQ), 201212904Sdim HOST_LINK_VERSION); 202212904Sdim DAL->getLastArg(options::OPT_mlinker_version_EQ)->claim(); 203212904Sdim } 204212904Sdim#endif 205212904Sdim 206210299Sed return DAL; 207210299Sed} 208210299Sed 209193326SedCompilation *Driver::BuildCompilation(int argc, const char **argv) { 210193326Sed llvm::PrettyStackTraceString CrashInfo("Compilation construction"); 211193326Sed 212198092Srdivacky // FIXME: Handle environment options which effect driver behavior, somewhere 213198092Srdivacky // (client?). GCC_EXEC_PREFIX, COMPILER_PATH, LIBRARY_PATH, LPATH, 214198092Srdivacky // CC_PRINT_OPTIONS. 215193326Sed 216193326Sed // FIXME: What are we going to do with -V and -b? 217193326Sed 218198092Srdivacky // FIXME: This stuff needs to go into the Compilation, not the driver. 219193326Sed bool CCCPrintOptions = false, CCCPrintActions = false; 220193326Sed 221193326Sed const char **Start = argv + 1, **End = argv + argc; 222193326Sed 223200583Srdivacky InputArgList *Args = ParseArgStrings(Start, End); 224200583Srdivacky 225200583Srdivacky // -no-canonical-prefixes is used very early in main. 226200583Srdivacky Args->ClaimAllArgs(options::OPT_no_canonical_prefixes); 227200583Srdivacky 228212904Sdim // Ignore -pipe. 229212904Sdim Args->ClaimAllArgs(options::OPT_pipe); 230212904Sdim 231200583Srdivacky // Extract -ccc args. 232193326Sed // 233198092Srdivacky // FIXME: We need to figure out where this behavior should live. Most of it 234198092Srdivacky // should be outside in the client; the parts that aren't should have proper 235198092Srdivacky // options, either by introducing new ones or by overloading gcc ones like -V 236198092Srdivacky // or -b. 237200583Srdivacky CCCPrintOptions = Args->hasArg(options::OPT_ccc_print_options); 238200583Srdivacky CCCPrintActions = Args->hasArg(options::OPT_ccc_print_phases); 239200583Srdivacky CCCPrintBindings = Args->hasArg(options::OPT_ccc_print_bindings); 240200583Srdivacky CCCIsCXX = Args->hasArg(options::OPT_ccc_cxx) || CCCIsCXX; 241218893Sdim if (CCCIsCXX) { 242218893Sdim#ifdef IS_CYGWIN15 243218893Sdim CCCGenericGCCName = "g++-4"; 244218893Sdim#else 245218893Sdim CCCGenericGCCName = "g++"; 246218893Sdim#endif 247218893Sdim } 248200583Srdivacky CCCEcho = Args->hasArg(options::OPT_ccc_echo); 249200583Srdivacky if (const Arg *A = Args->getLastArg(options::OPT_ccc_gcc_name)) 250200583Srdivacky CCCGenericGCCName = A->getValue(*Args); 251200583Srdivacky CCCUseClangCXX = Args->hasFlag(options::OPT_ccc_clang_cxx, 252200583Srdivacky options::OPT_ccc_no_clang_cxx, 253200583Srdivacky CCCUseClangCXX); 254200583Srdivacky CCCUsePCH = Args->hasFlag(options::OPT_ccc_pch_is_pch, 255200583Srdivacky options::OPT_ccc_pch_is_pth); 256200583Srdivacky CCCUseClang = !Args->hasArg(options::OPT_ccc_no_clang); 257200583Srdivacky CCCUseClangCPP = !Args->hasArg(options::OPT_ccc_no_clang_cpp); 258200583Srdivacky if (const Arg *A = Args->getLastArg(options::OPT_ccc_clang_archs)) { 259200583Srdivacky llvm::StringRef Cur = A->getValue(*Args); 260198092Srdivacky 261200583Srdivacky CCCClangArchs.clear(); 262200583Srdivacky while (!Cur.empty()) { 263200583Srdivacky std::pair<llvm::StringRef, llvm::StringRef> Split = Cur.split(','); 264198092Srdivacky 265200583Srdivacky if (!Split.first.empty()) { 266200583Srdivacky llvm::Triple::ArchType Arch = 267200583Srdivacky llvm::Triple(Split.first, "", "").getArch(); 268193326Sed 269203955Srdivacky if (Arch == llvm::Triple::UnknownArch) 270203955Srdivacky Diag(clang::diag::err_drv_invalid_arch_name) << Split.first; 271198092Srdivacky 272200583Srdivacky CCCClangArchs.insert(Arch); 273193326Sed } 274193326Sed 275200583Srdivacky Cur = Split.second; 276193326Sed } 277193326Sed } 278212904Sdim // FIXME: We shouldn't overwrite the default host triple here, but we have 279212904Sdim // nowhere else to put this currently. 280200583Srdivacky if (const Arg *A = Args->getLastArg(options::OPT_ccc_host_triple)) 281212904Sdim DefaultHostTriple = A->getValue(*Args); 282200583Srdivacky if (const Arg *A = Args->getLastArg(options::OPT_ccc_install_dir)) 283212904Sdim Dir = InstalledDir = A->getValue(*Args); 284218893Sdim for (arg_iterator it = Args->filtered_begin(options::OPT_B), 285218893Sdim ie = Args->filtered_end(); it != ie; ++it) { 286218893Sdim const Arg *A = *it; 287218893Sdim A->claim(); 288218893Sdim PrefixDirs.push_back(A->getValue(*Args, 0)); 289218893Sdim } 290193326Sed 291212904Sdim Host = GetHostInfo(DefaultHostTriple.c_str()); 292193326Sed 293210299Sed // Perform the default argument translations. 294210299Sed DerivedArgList *TranslatedArgs = TranslateInputArgs(*Args); 295210299Sed 296193326Sed // The compilation takes ownership of Args. 297210299Sed Compilation *C = new Compilation(*this, *Host->CreateToolChain(*Args), Args, 298210299Sed TranslatedArgs); 299193326Sed 300193326Sed // FIXME: This behavior shouldn't be here. 301193326Sed if (CCCPrintOptions) { 302210299Sed PrintOptions(C->getInputArgs()); 303193326Sed return C; 304193326Sed } 305193326Sed 306193326Sed if (!HandleImmediateArgs(*C)) 307193326Sed return C; 308193326Sed 309212904Sdim // Construct the list of abstract actions to perform for this compilation. 310193326Sed if (Host->useDriverDriver()) 311212904Sdim BuildUniversalActions(C->getDefaultToolChain(), C->getArgs(), 312212904Sdim C->getActions()); 313193326Sed else 314212904Sdim BuildActions(C->getDefaultToolChain(), C->getArgs(), C->getActions()); 315193326Sed 316193326Sed if (CCCPrintActions) { 317193326Sed PrintActions(*C); 318193326Sed return C; 319193326Sed } 320193326Sed 321193326Sed BuildJobs(*C); 322193326Sed 323193326Sed return C; 324193326Sed} 325193326Sed 326195341Sedint Driver::ExecuteCompilation(const Compilation &C) const { 327195341Sed // Just print if -### was present. 328195341Sed if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH)) { 329195341Sed C.PrintJob(llvm::errs(), C.getJobs(), "\n", true); 330195341Sed return 0; 331195341Sed } 332195341Sed 333195341Sed // If there were errors building the compilation, quit now. 334218893Sdim if (getDiags().hasErrorOccurred()) 335195341Sed return 1; 336195341Sed 337195341Sed const Command *FailingCommand = 0; 338195341Sed int Res = C.ExecuteJob(C.getJobs(), FailingCommand); 339198092Srdivacky 340195341Sed // Remove temp files. 341195341Sed C.CleanupFileList(C.getTempFiles()); 342195341Sed 343208600Srdivacky // If the command succeeded, we are done. 344208600Srdivacky if (Res == 0) 345208600Srdivacky return Res; 346208600Srdivacky 347208600Srdivacky // Otherwise, remove result files as well. 348208600Srdivacky if (!C.getArgs().hasArg(options::OPT_save_temps)) 349195341Sed C.CleanupFileList(C.getResultFiles(), true); 350195341Sed 351195341Sed // Print extra information about abnormal failures, if possible. 352208600Srdivacky // 353208600Srdivacky // This is ad-hoc, but we don't want to be excessively noisy. If the result 354208600Srdivacky // status was 1, assume the command failed normally. In particular, if it was 355208600Srdivacky // the compiler then assume it gave a reasonable error code. Failures in other 356208600Srdivacky // tools are less common, and they generally have worse diagnostics, so always 357208600Srdivacky // print the diagnostic there. 358208600Srdivacky const Tool &FailingTool = FailingCommand->getCreator(); 359195341Sed 360208600Srdivacky if (!FailingCommand->getCreator().hasGoodDiagnostics() || Res != 1) { 361208600Srdivacky // FIXME: See FIXME above regarding result code interpretation. 362208600Srdivacky if (Res < 0) 363208600Srdivacky Diag(clang::diag::err_drv_command_signalled) 364208600Srdivacky << FailingTool.getShortName() << -Res; 365208600Srdivacky else 366208600Srdivacky Diag(clang::diag::err_drv_command_failed) 367208600Srdivacky << FailingTool.getShortName() << Res; 368195341Sed } 369195341Sed 370195341Sed return Res; 371195341Sed} 372195341Sed 373193326Sedvoid Driver::PrintOptions(const ArgList &Args) const { 374193326Sed unsigned i = 0; 375198092Srdivacky for (ArgList::const_iterator it = Args.begin(), ie = Args.end(); 376193326Sed it != ie; ++it, ++i) { 377193326Sed Arg *A = *it; 378193326Sed llvm::errs() << "Option " << i << " - " 379193326Sed << "Name: \"" << A->getOption().getName() << "\", " 380193326Sed << "Values: {"; 381193326Sed for (unsigned j = 0; j < A->getNumValues(); ++j) { 382193326Sed if (j) 383193326Sed llvm::errs() << ", "; 384193326Sed llvm::errs() << '"' << A->getValue(Args, j) << '"'; 385193326Sed } 386193326Sed llvm::errs() << "}\n"; 387193326Sed } 388193326Sed} 389193326Sed 390193326Sedvoid Driver::PrintHelp(bool ShowHidden) const { 391204643Srdivacky getOpts().PrintHelp(llvm::outs(), Name.c_str(), DriverTitle.c_str(), 392204643Srdivacky ShowHidden); 393193326Sed} 394193326Sed 395198092Srdivackyvoid Driver::PrintVersion(const Compilation &C, llvm::raw_ostream &OS) const { 396198092Srdivacky // FIXME: The following handlers should use a callback mechanism, we don't 397198092Srdivacky // know what the client would like to do. 398202879Srdivacky OS << getClangFullVersion() << '\n'; 399193326Sed const ToolChain &TC = C.getDefaultToolChain(); 400198092Srdivacky OS << "Target: " << TC.getTripleString() << '\n'; 401194613Sed 402194613Sed // Print the threading model. 403194613Sed // 404194613Sed // FIXME: Implement correctly. 405198092Srdivacky OS << "Thread model: " << "posix" << '\n'; 406193326Sed} 407193326Sed 408208600Srdivacky/// PrintDiagnosticCategories - Implement the --print-diagnostic-categories 409208600Srdivacky/// option. 410208600Srdivackystatic void PrintDiagnosticCategories(llvm::raw_ostream &OS) { 411208600Srdivacky for (unsigned i = 1; // Skip the empty category. 412218893Sdim const char *CategoryName = DiagnosticIDs::getCategoryNameFromID(i); ++i) 413208600Srdivacky OS << i << ',' << CategoryName << '\n'; 414208600Srdivacky} 415208600Srdivacky 416193326Sedbool Driver::HandleImmediateArgs(const Compilation &C) { 417210299Sed // The order these options are handled in gcc is all over the place, but we 418198092Srdivacky // don't expect inconsistencies w.r.t. that to matter in practice. 419193326Sed 420218893Sdim if (C.getArgs().hasArg(options::OPT_dumpmachine)) { 421218893Sdim llvm::outs() << C.getDefaultToolChain().getTripleString() << '\n'; 422218893Sdim return false; 423218893Sdim } 424218893Sdim 425193326Sed if (C.getArgs().hasArg(options::OPT_dumpversion)) { 426218893Sdim // Since -dumpversion is only implemented for pedantic GCC compatibility, we 427218893Sdim // return an answer which matches our definition of __VERSION__. 428218893Sdim // 429218893Sdim // If we want to return a more correct answer some day, then we should 430218893Sdim // introduce a non-pedantically GCC compatible mode to Clang in which we 431218893Sdim // provide sensible definitions for -dumpversion, __VERSION__, etc. 432218893Sdim llvm::outs() << "4.2.1\n"; 433193326Sed return false; 434193326Sed } 435210299Sed 436208600Srdivacky if (C.getArgs().hasArg(options::OPT__print_diagnostic_categories)) { 437208600Srdivacky PrintDiagnosticCategories(llvm::outs()); 438208600Srdivacky return false; 439208600Srdivacky } 440193326Sed 441198092Srdivacky if (C.getArgs().hasArg(options::OPT__help) || 442193326Sed C.getArgs().hasArg(options::OPT__help_hidden)) { 443193326Sed PrintHelp(C.getArgs().hasArg(options::OPT__help_hidden)); 444193326Sed return false; 445193326Sed } 446193326Sed 447193326Sed if (C.getArgs().hasArg(options::OPT__version)) { 448198092Srdivacky // Follow gcc behavior and use stdout for --version and stderr for -v. 449198092Srdivacky PrintVersion(C, llvm::outs()); 450193326Sed return false; 451193326Sed } 452193326Sed 453198092Srdivacky if (C.getArgs().hasArg(options::OPT_v) || 454193326Sed C.getArgs().hasArg(options::OPT__HASH_HASH_HASH)) { 455198092Srdivacky PrintVersion(C, llvm::errs()); 456193326Sed SuppressMissingInputWarning = true; 457193326Sed } 458193326Sed 459193326Sed const ToolChain &TC = C.getDefaultToolChain(); 460193326Sed if (C.getArgs().hasArg(options::OPT_print_search_dirs)) { 461193326Sed llvm::outs() << "programs: ="; 462193326Sed for (ToolChain::path_list::const_iterator it = TC.getProgramPaths().begin(), 463193326Sed ie = TC.getProgramPaths().end(); it != ie; ++it) { 464193326Sed if (it != TC.getProgramPaths().begin()) 465193326Sed llvm::outs() << ':'; 466193326Sed llvm::outs() << *it; 467193326Sed } 468193326Sed llvm::outs() << "\n"; 469193326Sed llvm::outs() << "libraries: ="; 470198092Srdivacky for (ToolChain::path_list::const_iterator it = TC.getFilePaths().begin(), 471193326Sed ie = TC.getFilePaths().end(); it != ie; ++it) { 472193326Sed if (it != TC.getFilePaths().begin()) 473193326Sed llvm::outs() << ':'; 474193326Sed llvm::outs() << *it; 475193326Sed } 476193326Sed llvm::outs() << "\n"; 477193326Sed return false; 478193326Sed } 479193326Sed 480198092Srdivacky // FIXME: The following handlers should use a callback mechanism, we don't 481198092Srdivacky // know what the client would like to do. 482193326Sed if (Arg *A = C.getArgs().getLastArg(options::OPT_print_file_name_EQ)) { 483198092Srdivacky llvm::outs() << GetFilePath(A->getValue(C.getArgs()), TC) << "\n"; 484193326Sed return false; 485193326Sed } 486193326Sed 487193326Sed if (Arg *A = C.getArgs().getLastArg(options::OPT_print_prog_name_EQ)) { 488198092Srdivacky llvm::outs() << GetProgramPath(A->getValue(C.getArgs()), TC) << "\n"; 489193326Sed return false; 490193326Sed } 491193326Sed 492193326Sed if (C.getArgs().hasArg(options::OPT_print_libgcc_file_name)) { 493198092Srdivacky llvm::outs() << GetFilePath("libgcc.a", TC) << "\n"; 494193326Sed return false; 495193326Sed } 496193326Sed 497194613Sed if (C.getArgs().hasArg(options::OPT_print_multi_lib)) { 498194613Sed // FIXME: We need tool chain support for this. 499194613Sed llvm::outs() << ".;\n"; 500194613Sed 501194613Sed switch (C.getDefaultToolChain().getTriple().getArch()) { 502194613Sed default: 503194613Sed break; 504198092Srdivacky 505194613Sed case llvm::Triple::x86_64: 506194613Sed llvm::outs() << "x86_64;@m64" << "\n"; 507194613Sed break; 508194613Sed 509194613Sed case llvm::Triple::ppc64: 510194613Sed llvm::outs() << "ppc64;@m64" << "\n"; 511194613Sed break; 512194613Sed } 513194613Sed return false; 514194613Sed } 515194613Sed 516194613Sed // FIXME: What is the difference between print-multi-directory and 517194613Sed // print-multi-os-directory? 518194613Sed if (C.getArgs().hasArg(options::OPT_print_multi_directory) || 519194613Sed C.getArgs().hasArg(options::OPT_print_multi_os_directory)) { 520194613Sed switch (C.getDefaultToolChain().getTriple().getArch()) { 521194613Sed default: 522194613Sed case llvm::Triple::x86: 523194613Sed case llvm::Triple::ppc: 524194613Sed llvm::outs() << "." << "\n"; 525194613Sed break; 526198092Srdivacky 527194613Sed case llvm::Triple::x86_64: 528213492Sdim llvm::outs() << "." << "\n"; 529194613Sed break; 530194613Sed 531194613Sed case llvm::Triple::ppc64: 532194613Sed llvm::outs() << "ppc64" << "\n"; 533194613Sed break; 534194613Sed } 535194613Sed return false; 536194613Sed } 537194613Sed 538193326Sed return true; 539193326Sed} 540193326Sed 541198092Srdivackystatic unsigned PrintActions1(const Compilation &C, Action *A, 542193326Sed std::map<Action*, unsigned> &Ids) { 543193326Sed if (Ids.count(A)) 544193326Sed return Ids[A]; 545198092Srdivacky 546193326Sed std::string str; 547193326Sed llvm::raw_string_ostream os(str); 548198092Srdivacky 549193326Sed os << Action::getClassName(A->getKind()) << ", "; 550198092Srdivacky if (InputAction *IA = dyn_cast<InputAction>(A)) { 551193326Sed os << "\"" << IA->getInputArg().getValue(C.getArgs()) << "\""; 552193326Sed } else if (BindArchAction *BIA = dyn_cast<BindArchAction>(A)) { 553198092Srdivacky os << '"' << (BIA->getArchName() ? BIA->getArchName() : 554193326Sed C.getDefaultToolChain().getArchName()) << '"' 555193326Sed << ", {" << PrintActions1(C, *BIA->begin(), Ids) << "}"; 556193326Sed } else { 557193326Sed os << "{"; 558193326Sed for (Action::iterator it = A->begin(), ie = A->end(); it != ie;) { 559193326Sed os << PrintActions1(C, *it, Ids); 560193326Sed ++it; 561193326Sed if (it != ie) 562193326Sed os << ", "; 563193326Sed } 564193326Sed os << "}"; 565193326Sed } 566193326Sed 567193326Sed unsigned Id = Ids.size(); 568193326Sed Ids[A] = Id; 569198092Srdivacky llvm::errs() << Id << ": " << os.str() << ", " 570193326Sed << types::getTypeName(A->getType()) << "\n"; 571193326Sed 572193326Sed return Id; 573193326Sed} 574193326Sed 575193326Sedvoid Driver::PrintActions(const Compilation &C) const { 576193326Sed std::map<Action*, unsigned> Ids; 577198092Srdivacky for (ActionList::const_iterator it = C.getActions().begin(), 578193326Sed ie = C.getActions().end(); it != ie; ++it) 579193326Sed PrintActions1(C, *it, Ids); 580193326Sed} 581193326Sed 582210299Sed/// \brief Check whether the given input tree contains any compilation (or 583210299Sed/// assembly) actions. 584210299Sedstatic bool ContainsCompileAction(const Action *A) { 585210299Sed if (isa<CompileJobAction>(A) || isa<AssembleJobAction>(A)) 586210299Sed return true; 587210299Sed 588210299Sed for (Action::const_iterator it = A->begin(), ie = A->end(); it != ie; ++it) 589210299Sed if (ContainsCompileAction(*it)) 590210299Sed return true; 591210299Sed 592210299Sed return false; 593210299Sed} 594210299Sed 595212904Sdimvoid Driver::BuildUniversalActions(const ToolChain &TC, 596212904Sdim const ArgList &Args, 597193326Sed ActionList &Actions) const { 598198092Srdivacky llvm::PrettyStackTraceString CrashInfo("Building universal build actions"); 599198092Srdivacky // Collect the list of architectures. Duplicates are allowed, but should only 600198092Srdivacky // be handled once (in the order seen). 601193326Sed llvm::StringSet<> ArchNames; 602193326Sed llvm::SmallVector<const char *, 4> Archs; 603198092Srdivacky for (ArgList::const_iterator it = Args.begin(), ie = Args.end(); 604193326Sed it != ie; ++it) { 605193326Sed Arg *A = *it; 606193326Sed 607199512Srdivacky if (A->getOption().matches(options::OPT_arch)) { 608198092Srdivacky // Validate the option here; we don't save the type here because its 609198092Srdivacky // particular spelling may participate in other driver choices. 610198092Srdivacky llvm::Triple::ArchType Arch = 611198092Srdivacky llvm::Triple::getArchTypeForDarwinArchName(A->getValue(Args)); 612198092Srdivacky if (Arch == llvm::Triple::UnknownArch) { 613198092Srdivacky Diag(clang::diag::err_drv_invalid_arch_name) 614198092Srdivacky << A->getAsString(Args); 615198092Srdivacky continue; 616198092Srdivacky } 617193326Sed 618193326Sed A->claim(); 619198092Srdivacky if (ArchNames.insert(A->getValue(Args))) 620198092Srdivacky Archs.push_back(A->getValue(Args)); 621193326Sed } 622193326Sed } 623193326Sed 624198092Srdivacky // When there is no explicit arch for this platform, make sure we still bind 625198092Srdivacky // the architecture (to the default) so that -Xarch_ is handled correctly. 626193326Sed if (!Archs.size()) 627193326Sed Archs.push_back(0); 628193326Sed 629198092Srdivacky // FIXME: We killed off some others but these aren't yet detected in a 630198092Srdivacky // functional manner. If we added information to jobs about which "auxiliary" 631198092Srdivacky // files they wrote then we could detect the conflict these cause downstream. 632193326Sed if (Archs.size() > 1) { 633193326Sed // No recovery needed, the point of this is just to prevent 634193326Sed // overwriting the same files. 635193326Sed if (const Arg *A = Args.getLastArg(options::OPT_save_temps)) 636198092Srdivacky Diag(clang::diag::err_drv_invalid_opt_with_multiple_archs) 637193326Sed << A->getAsString(Args); 638193326Sed } 639193326Sed 640193326Sed ActionList SingleActions; 641212904Sdim BuildActions(TC, Args, SingleActions); 642193326Sed 643210299Sed // Add in arch bindings for every top level action, as well as lipo and 644210299Sed // dsymutil steps if needed. 645193326Sed for (unsigned i = 0, e = SingleActions.size(); i != e; ++i) { 646193326Sed Action *Act = SingleActions[i]; 647193326Sed 648198092Srdivacky // Make sure we can lipo this kind of output. If not (and it is an actual 649198092Srdivacky // output) then we disallow, since we can't create an output file with the 650198092Srdivacky // right name without overwriting it. We could remove this oddity by just 651198092Srdivacky // changing the output names to include the arch, which would also fix 652193326Sed // -save-temps. Compatibility wins for now. 653193326Sed 654193326Sed if (Archs.size() > 1 && !types::canLipoType(Act->getType())) 655193326Sed Diag(clang::diag::err_drv_invalid_output_with_multiple_archs) 656193326Sed << types::getTypeName(Act->getType()); 657193326Sed 658193326Sed ActionList Inputs; 659205219Srdivacky for (unsigned i = 0, e = Archs.size(); i != e; ++i) { 660193326Sed Inputs.push_back(new BindArchAction(Act, Archs[i])); 661205219Srdivacky if (i != 0) 662205219Srdivacky Inputs.back()->setOwnsInputs(false); 663205219Srdivacky } 664193326Sed 665198092Srdivacky // Lipo if necessary, we do it this way because we need to set the arch flag 666198092Srdivacky // so that -Xarch_ gets overwritten. 667193326Sed if (Inputs.size() == 1 || Act->getType() == types::TY_Nothing) 668193326Sed Actions.append(Inputs.begin(), Inputs.end()); 669193326Sed else 670193326Sed Actions.push_back(new LipoJobAction(Inputs, Act->getType())); 671210299Sed 672210299Sed // Add a 'dsymutil' step if necessary, when debug info is enabled and we 673210299Sed // have a compile input. We need to run 'dsymutil' ourselves in such cases 674210299Sed // because the debug info will refer to a temporary object file which is 675210299Sed // will be removed at the end of the compilation process. 676210299Sed if (Act->getType() == types::TY_Image) { 677210299Sed Arg *A = Args.getLastArg(options::OPT_g_Group); 678210299Sed if (A && !A->getOption().matches(options::OPT_g0) && 679210299Sed !A->getOption().matches(options::OPT_gstabs) && 680210299Sed ContainsCompileAction(Actions.back())) { 681210299Sed ActionList Inputs; 682210299Sed Inputs.push_back(Actions.back()); 683210299Sed Actions.pop_back(); 684210299Sed 685210299Sed Actions.push_back(new DsymutilJobAction(Inputs, types::TY_dSYM)); 686210299Sed } 687210299Sed } 688193326Sed } 689193326Sed} 690193326Sed 691212904Sdimvoid Driver::BuildActions(const ToolChain &TC, const ArgList &Args, 692212904Sdim ActionList &Actions) const { 693193326Sed llvm::PrettyStackTraceString CrashInfo("Building compilation actions"); 694193326Sed // Start by constructing the list of inputs and their types. 695193326Sed 696198092Srdivacky // Track the current user specified (-x) input. We also explicitly track the 697198092Srdivacky // argument used to set the type; we only want to claim the type when we 698198092Srdivacky // actually use it, so we warn about unused -x arguments. 699193326Sed types::ID InputType = types::TY_Nothing; 700193326Sed Arg *InputTypeArg = 0; 701193326Sed 702193326Sed llvm::SmallVector<std::pair<types::ID, const Arg*>, 16> Inputs; 703198092Srdivacky for (ArgList::const_iterator it = Args.begin(), ie = Args.end(); 704193326Sed it != ie; ++it) { 705193326Sed Arg *A = *it; 706193326Sed 707193326Sed if (isa<InputOption>(A->getOption())) { 708193326Sed const char *Value = A->getValue(Args); 709193326Sed types::ID Ty = types::TY_INVALID; 710193326Sed 711193326Sed // Infer the input type if necessary. 712193326Sed if (InputType == types::TY_Nothing) { 713193326Sed // If there was an explicit arg for this, claim it. 714193326Sed if (InputTypeArg) 715193326Sed InputTypeArg->claim(); 716193326Sed 717193326Sed // stdin must be handled specially. 718193326Sed if (memcmp(Value, "-", 2) == 0) { 719198092Srdivacky // If running with -E, treat as a C input (this changes the builtin 720198092Srdivacky // macros, for example). This may be overridden by -ObjC below. 721193326Sed // 722198092Srdivacky // Otherwise emit an error but still use a valid type to avoid 723198092Srdivacky // spurious errors (e.g., no inputs). 724199512Srdivacky if (!Args.hasArgNoClaim(options::OPT_E)) 725193326Sed Diag(clang::diag::err_drv_unknown_stdin_type); 726193326Sed Ty = types::TY_C; 727193326Sed } else { 728198092Srdivacky // Otherwise lookup by extension, and fallback to ObjectType if not 729198092Srdivacky // found. We use a host hook here because Darwin at least has its own 730198092Srdivacky // idea of what .s is. 731193326Sed if (const char *Ext = strrchr(Value, '.')) 732212904Sdim Ty = TC.LookupTypeForExtension(Ext + 1); 733193326Sed 734193326Sed if (Ty == types::TY_INVALID) 735193326Sed Ty = types::TY_Object; 736204643Srdivacky 737204643Srdivacky // If the driver is invoked as C++ compiler (like clang++ or c++) it 738204643Srdivacky // should autodetect some input files as C++ for g++ compatibility. 739204643Srdivacky if (CCCIsCXX) { 740204643Srdivacky types::ID OldTy = Ty; 741204643Srdivacky Ty = types::lookupCXXTypeForCType(Ty); 742204643Srdivacky 743204643Srdivacky if (Ty != OldTy) 744204643Srdivacky Diag(clang::diag::warn_drv_treating_input_as_cxx) 745204643Srdivacky << getTypeName(OldTy) << getTypeName(Ty); 746204643Srdivacky } 747193326Sed } 748193326Sed 749193326Sed // -ObjC and -ObjC++ override the default language, but only for "source 750193326Sed // files". We just treat everything that isn't a linker input as a 751193326Sed // source file. 752198092Srdivacky // 753193326Sed // FIXME: Clean this up if we move the phase sequence into the type. 754193326Sed if (Ty != types::TY_Object) { 755193326Sed if (Args.hasArg(options::OPT_ObjC)) 756193326Sed Ty = types::TY_ObjC; 757193326Sed else if (Args.hasArg(options::OPT_ObjCXX)) 758193326Sed Ty = types::TY_ObjCXX; 759193326Sed } 760193326Sed } else { 761193326Sed assert(InputTypeArg && "InputType set w/o InputTypeArg"); 762193326Sed InputTypeArg->claim(); 763193326Sed Ty = InputType; 764193326Sed } 765193326Sed 766203955Srdivacky // Check that the file exists, if enabled. 767218893Sdim if (CheckInputsExist && memcmp(Value, "-", 2) != 0) { 768218893Sdim llvm::SmallString<64> Path(Value); 769218893Sdim if (Arg *WorkDir = Args.getLastArg(options::OPT_working_directory)) 770218893Sdim if (llvm::sys::path::is_absolute(Path.str())) { 771218893Sdim Path = WorkDir->getValue(Args); 772218893Sdim llvm::sys::path::append(Path, Value); 773218893Sdim } 774218893Sdim 775218893Sdim bool exists = false; 776218893Sdim if (/*error_code ec =*/llvm::sys::fs::exists(Value, exists) || !exists) 777218893Sdim Diag(clang::diag::err_drv_no_such_file) << Path.str(); 778218893Sdim else 779218893Sdim Inputs.push_back(std::make_pair(Ty, A)); 780218893Sdim } else 781193326Sed Inputs.push_back(std::make_pair(Ty, A)); 782193326Sed 783193326Sed } else if (A->getOption().isLinkerInput()) { 784198092Srdivacky // Just treat as object type, we could make a special type for this if 785198092Srdivacky // necessary. 786193326Sed Inputs.push_back(std::make_pair(types::TY_Object, A)); 787193326Sed 788199512Srdivacky } else if (A->getOption().matches(options::OPT_x)) { 789198092Srdivacky InputTypeArg = A; 790193326Sed InputType = types::lookupTypeForTypeSpecifier(A->getValue(Args)); 791193326Sed 792193326Sed // Follow gcc behavior and treat as linker input for invalid -x 793198092Srdivacky // options. Its not clear why we shouldn't just revert to unknown; but 794218893Sdim // this isn't very important, we might as well be bug compatible. 795193326Sed if (!InputType) { 796193326Sed Diag(clang::diag::err_drv_unknown_language) << A->getValue(Args); 797193326Sed InputType = types::TY_Object; 798193326Sed } 799193326Sed } 800193326Sed } 801193326Sed 802193326Sed if (!SuppressMissingInputWarning && Inputs.empty()) { 803193326Sed Diag(clang::diag::err_drv_no_input_files); 804193326Sed return; 805193326Sed } 806193326Sed 807198092Srdivacky // Determine which compilation mode we are in. We look for options which 808198092Srdivacky // affect the phase, starting with the earliest phases, and record which 809198092Srdivacky // option we used to determine the final phase. 810193326Sed Arg *FinalPhaseArg = 0; 811193326Sed phases::ID FinalPhase; 812193326Sed 813193326Sed // -{E,M,MM} only run the preprocessor. 814193326Sed if ((FinalPhaseArg = Args.getLastArg(options::OPT_E)) || 815218893Sdim (FinalPhaseArg = Args.getLastArg(options::OPT_M, options::OPT_MM))) { 816193326Sed FinalPhase = phases::Preprocess; 817198092Srdivacky 818198092Srdivacky // -{fsyntax-only,-analyze,emit-ast,S} only run up to the compiler. 819193326Sed } else if ((FinalPhaseArg = Args.getLastArg(options::OPT_fsyntax_only)) || 820203955Srdivacky (FinalPhaseArg = Args.getLastArg(options::OPT_rewrite_objc)) || 821193326Sed (FinalPhaseArg = Args.getLastArg(options::OPT__analyze, 822193326Sed options::OPT__analyze_auto)) || 823198092Srdivacky (FinalPhaseArg = Args.getLastArg(options::OPT_emit_ast)) || 824193326Sed (FinalPhaseArg = Args.getLastArg(options::OPT_S))) { 825193326Sed FinalPhase = phases::Compile; 826193326Sed 827193326Sed // -c only runs up to the assembler. 828193326Sed } else if ((FinalPhaseArg = Args.getLastArg(options::OPT_c))) { 829193326Sed FinalPhase = phases::Assemble; 830198092Srdivacky 831193326Sed // Otherwise do everything. 832193326Sed } else 833193326Sed FinalPhase = phases::Link; 834193326Sed 835198092Srdivacky // Reject -Z* at the top level, these options should never have been exposed 836198092Srdivacky // by gcc. 837193326Sed if (Arg *A = Args.getLastArg(options::OPT_Z_Joined)) 838193326Sed Diag(clang::diag::err_drv_use_of_Z_option) << A->getAsString(Args); 839193326Sed 840193326Sed // Construct the actions to perform. 841193326Sed ActionList LinkerInputs; 842193326Sed for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 843193326Sed types::ID InputType = Inputs[i].first; 844193326Sed const Arg *InputArg = Inputs[i].second; 845193326Sed 846193326Sed unsigned NumSteps = types::getNumCompilationPhases(InputType); 847193326Sed assert(NumSteps && "Invalid number of steps!"); 848193326Sed 849198092Srdivacky // If the first step comes after the final phase we are doing as part of 850198092Srdivacky // this compilation, warn the user about it. 851193326Sed phases::ID InitialPhase = types::getCompilationPhase(InputType, 0); 852193326Sed if (InitialPhase > FinalPhase) { 853193326Sed // Claim here to avoid the more general unused warning. 854193326Sed InputArg->claim(); 855198092Srdivacky 856198092Srdivacky // Special case '-E' warning on a previously preprocessed file to make 857198092Srdivacky // more sense. 858198092Srdivacky if (InitialPhase == phases::Compile && FinalPhase == phases::Preprocess && 859198092Srdivacky getPreprocessedType(InputType) == types::TY_INVALID) 860198092Srdivacky Diag(clang::diag::warn_drv_preprocessed_input_file_unused) 861198092Srdivacky << InputArg->getAsString(Args) 862198092Srdivacky << FinalPhaseArg->getOption().getName(); 863198092Srdivacky else 864198092Srdivacky Diag(clang::diag::warn_drv_input_file_unused) 865198092Srdivacky << InputArg->getAsString(Args) 866198092Srdivacky << getPhaseName(InitialPhase) 867198092Srdivacky << FinalPhaseArg->getOption().getName(); 868193326Sed continue; 869193326Sed } 870198092Srdivacky 871193326Sed // Build the pipeline for this file. 872202879Srdivacky llvm::OwningPtr<Action> Current(new InputAction(*InputArg, InputType)); 873193326Sed for (unsigned i = 0; i != NumSteps; ++i) { 874193326Sed phases::ID Phase = types::getCompilationPhase(InputType, i); 875193326Sed 876193326Sed // We are done if this step is past what the user requested. 877193326Sed if (Phase > FinalPhase) 878193326Sed break; 879193326Sed 880193326Sed // Queue linker inputs. 881193326Sed if (Phase == phases::Link) { 882193326Sed assert(i + 1 == NumSteps && "linking must be final compilation step."); 883202879Srdivacky LinkerInputs.push_back(Current.take()); 884193326Sed break; 885193326Sed } 886193326Sed 887198092Srdivacky // Some types skip the assembler phase (e.g., llvm-bc), but we can't 888198092Srdivacky // encode this in the steps because the intermediate type depends on 889198092Srdivacky // arguments. Just special case here. 890193326Sed if (Phase == phases::Assemble && Current->getType() != types::TY_PP_Asm) 891193326Sed continue; 892193326Sed 893193326Sed // Otherwise construct the appropriate action. 894202879Srdivacky Current.reset(ConstructPhaseAction(Args, Phase, Current.take())); 895193326Sed if (Current->getType() == types::TY_Nothing) 896193326Sed break; 897193326Sed } 898193326Sed 899193326Sed // If we ended with something, add to the output list. 900193326Sed if (Current) 901202879Srdivacky Actions.push_back(Current.take()); 902193326Sed } 903193326Sed 904193326Sed // Add a link action if necessary. 905193326Sed if (!LinkerInputs.empty()) 906193326Sed Actions.push_back(new LinkJobAction(LinkerInputs, types::TY_Image)); 907201361Srdivacky 908201361Srdivacky // If we are linking, claim any options which are obviously only used for 909201361Srdivacky // compilation. 910201361Srdivacky if (FinalPhase == phases::Link) 911201361Srdivacky Args.ClaimAllArgs(options::OPT_CompileOnly_Group); 912193326Sed} 913193326Sed 914193326SedAction *Driver::ConstructPhaseAction(const ArgList &Args, phases::ID Phase, 915193326Sed Action *Input) const { 916193326Sed llvm::PrettyStackTraceString CrashInfo("Constructing phase actions"); 917193326Sed // Build the appropriate action. 918193326Sed switch (Phase) { 919193326Sed case phases::Link: assert(0 && "link action invalid here."); 920193326Sed case phases::Preprocess: { 921193326Sed types::ID OutputTy; 922193326Sed // -{M, MM} alter the output type. 923218893Sdim if (Args.hasArg(options::OPT_M, options::OPT_MM)) { 924193326Sed OutputTy = types::TY_Dependencies; 925193326Sed } else { 926193326Sed OutputTy = types::getPreprocessedType(Input->getType()); 927193326Sed assert(OutputTy != types::TY_INVALID && 928193326Sed "Cannot preprocess this input type!"); 929193326Sed } 930193326Sed return new PreprocessJobAction(Input, OutputTy); 931193326Sed } 932193326Sed case phases::Precompile: 933198092Srdivacky return new PrecompileJobAction(Input, types::TY_PCH); 934193326Sed case phases::Compile: { 935201361Srdivacky bool HasO4 = false; 936201361Srdivacky if (const Arg *A = Args.getLastArg(options::OPT_O_Group)) 937201361Srdivacky HasO4 = A->getOption().matches(options::OPT_O4); 938201361Srdivacky 939193326Sed if (Args.hasArg(options::OPT_fsyntax_only)) { 940193326Sed return new CompileJobAction(Input, types::TY_Nothing); 941203955Srdivacky } else if (Args.hasArg(options::OPT_rewrite_objc)) { 942203955Srdivacky return new CompileJobAction(Input, types::TY_RewrittenObjC); 943193326Sed } else if (Args.hasArg(options::OPT__analyze, options::OPT__analyze_auto)) { 944193326Sed return new AnalyzeJobAction(Input, types::TY_Plist); 945198092Srdivacky } else if (Args.hasArg(options::OPT_emit_ast)) { 946198092Srdivacky return new CompileJobAction(Input, types::TY_AST); 947193326Sed } else if (Args.hasArg(options::OPT_emit_llvm) || 948201361Srdivacky Args.hasArg(options::OPT_flto) || HasO4) { 949198092Srdivacky types::ID Output = 950210299Sed Args.hasArg(options::OPT_S) ? types::TY_LTO_IR : types::TY_LTO_BC; 951193326Sed return new CompileJobAction(Input, Output); 952193326Sed } else { 953193326Sed return new CompileJobAction(Input, types::TY_PP_Asm); 954193326Sed } 955193326Sed } 956193326Sed case phases::Assemble: 957193326Sed return new AssembleJobAction(Input, types::TY_Object); 958193326Sed } 959193326Sed 960193326Sed assert(0 && "invalid phase in ConstructPhaseAction"); 961193326Sed return 0; 962193326Sed} 963193326Sed 964193326Sedvoid Driver::BuildJobs(Compilation &C) const { 965193326Sed llvm::PrettyStackTraceString CrashInfo("Building compilation jobs"); 966193326Sed 967193326Sed Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o); 968193326Sed 969198092Srdivacky // It is an error to provide a -o option if we are making multiple output 970198092Srdivacky // files. 971193326Sed if (FinalOutput) { 972193326Sed unsigned NumOutputs = 0; 973198092Srdivacky for (ActionList::const_iterator it = C.getActions().begin(), 974193326Sed ie = C.getActions().end(); it != ie; ++it) 975193326Sed if ((*it)->getType() != types::TY_Nothing) 976193326Sed ++NumOutputs; 977198092Srdivacky 978193326Sed if (NumOutputs > 1) { 979193326Sed Diag(clang::diag::err_drv_output_argument_with_multiple_files); 980193326Sed FinalOutput = 0; 981193326Sed } 982193326Sed } 983193326Sed 984198092Srdivacky for (ActionList::const_iterator it = C.getActions().begin(), 985193326Sed ie = C.getActions().end(); it != ie; ++it) { 986193326Sed Action *A = *it; 987193326Sed 988198092Srdivacky // If we are linking an image for multiple archs then the linker wants 989198092Srdivacky // -arch_multiple and -final_output <final image name>. Unfortunately, this 990198092Srdivacky // doesn't fit in cleanly because we have to pass this information down. 991193326Sed // 992198092Srdivacky // FIXME: This is a hack; find a cleaner way to integrate this into the 993198092Srdivacky // process. 994193326Sed const char *LinkingOutput = 0; 995193326Sed if (isa<LipoJobAction>(A)) { 996193326Sed if (FinalOutput) 997193326Sed LinkingOutput = FinalOutput->getValue(C.getArgs()); 998193326Sed else 999193326Sed LinkingOutput = DefaultImageName.c_str(); 1000193326Sed } 1001193326Sed 1002193326Sed InputInfo II; 1003198092Srdivacky BuildJobsForAction(C, A, &C.getDefaultToolChain(), 1004198092Srdivacky /*BoundArch*/0, 1005193326Sed /*AtTopLevel*/ true, 1006193326Sed /*LinkingOutput*/ LinkingOutput, 1007193326Sed II); 1008193326Sed } 1009193326Sed 1010198092Srdivacky // If the user passed -Qunused-arguments or there were errors, don't warn 1011198092Srdivacky // about any unused arguments. 1012218893Sdim if (Diags.hasErrorOccurred() || 1013193326Sed C.getArgs().hasArg(options::OPT_Qunused_arguments)) 1014193326Sed return; 1015193326Sed 1016193326Sed // Claim -### here. 1017193326Sed (void) C.getArgs().hasArg(options::OPT__HASH_HASH_HASH); 1018198092Srdivacky 1019193326Sed for (ArgList::const_iterator it = C.getArgs().begin(), ie = C.getArgs().end(); 1020193326Sed it != ie; ++it) { 1021193326Sed Arg *A = *it; 1022198092Srdivacky 1023193326Sed // FIXME: It would be nice to be able to send the argument to the 1024198092Srdivacky // Diagnostic, so that extra values, position, and so on could be printed. 1025193326Sed if (!A->isClaimed()) { 1026193326Sed if (A->getOption().hasNoArgumentUnused()) 1027193326Sed continue; 1028193326Sed 1029198092Srdivacky // Suppress the warning automatically if this is just a flag, and it is an 1030198092Srdivacky // instance of an argument we already claimed. 1031193326Sed const Option &Opt = A->getOption(); 1032193326Sed if (isa<FlagOption>(Opt)) { 1033193326Sed bool DuplicateClaimed = false; 1034193326Sed 1035199990Srdivacky for (arg_iterator it = C.getArgs().filtered_begin(&Opt), 1036199990Srdivacky ie = C.getArgs().filtered_end(); it != ie; ++it) { 1037199990Srdivacky if ((*it)->isClaimed()) { 1038193326Sed DuplicateClaimed = true; 1039193326Sed break; 1040193326Sed } 1041193326Sed } 1042193326Sed 1043193326Sed if (DuplicateClaimed) 1044193326Sed continue; 1045193326Sed } 1046193326Sed 1047198092Srdivacky Diag(clang::diag::warn_drv_unused_argument) 1048193326Sed << A->getAsString(C.getArgs()); 1049193326Sed } 1050193326Sed } 1051193326Sed} 1052193326Sed 1053203955Srdivackystatic const Tool &SelectToolForJob(Compilation &C, const ToolChain *TC, 1054203955Srdivacky const JobAction *JA, 1055203955Srdivacky const ActionList *&Inputs) { 1056203955Srdivacky const Tool *ToolForJob = 0; 1057203955Srdivacky 1058203955Srdivacky // See if we should look for a compiler with an integrated assembler. We match 1059203955Srdivacky // bottom up, so what we are actually looking for is an assembler job with a 1060203955Srdivacky // compiler input. 1061208600Srdivacky 1062208600Srdivacky // FIXME: This doesn't belong here, but ideally we will support static soon 1063208600Srdivacky // anyway. 1064208600Srdivacky bool HasStatic = (C.getArgs().hasArg(options::OPT_mkernel) || 1065208600Srdivacky C.getArgs().hasArg(options::OPT_static) || 1066208600Srdivacky C.getArgs().hasArg(options::OPT_fapple_kext)); 1067208600Srdivacky bool IsIADefault = (TC->IsIntegratedAssemblerDefault() && !HasStatic); 1068208600Srdivacky if (C.getArgs().hasFlag(options::OPT_integrated_as, 1069203955Srdivacky options::OPT_no_integrated_as, 1070208600Srdivacky IsIADefault) && 1071203955Srdivacky !C.getArgs().hasArg(options::OPT_save_temps) && 1072203955Srdivacky isa<AssembleJobAction>(JA) && 1073203955Srdivacky Inputs->size() == 1 && isa<CompileJobAction>(*Inputs->begin())) { 1074203955Srdivacky const Tool &Compiler = TC->SelectTool(C,cast<JobAction>(**Inputs->begin())); 1075203955Srdivacky if (Compiler.hasIntegratedAssembler()) { 1076203955Srdivacky Inputs = &(*Inputs)[0]->getInputs(); 1077203955Srdivacky ToolForJob = &Compiler; 1078203955Srdivacky } 1079203955Srdivacky } 1080203955Srdivacky 1081203955Srdivacky // Otherwise use the tool for the current job. 1082203955Srdivacky if (!ToolForJob) 1083203955Srdivacky ToolForJob = &TC->SelectTool(C, *JA); 1084203955Srdivacky 1085203955Srdivacky // See if we should use an integrated preprocessor. We do so when we have 1086203955Srdivacky // exactly one input, since this is the only use case we care about 1087203955Srdivacky // (irrelevant since we don't support combine yet). 1088203955Srdivacky if (Inputs->size() == 1 && isa<PreprocessJobAction>(*Inputs->begin()) && 1089203955Srdivacky !C.getArgs().hasArg(options::OPT_no_integrated_cpp) && 1090203955Srdivacky !C.getArgs().hasArg(options::OPT_traditional_cpp) && 1091203955Srdivacky !C.getArgs().hasArg(options::OPT_save_temps) && 1092203955Srdivacky ToolForJob->hasIntegratedCPP()) 1093203955Srdivacky Inputs = &(*Inputs)[0]->getInputs(); 1094203955Srdivacky 1095203955Srdivacky return *ToolForJob; 1096203955Srdivacky} 1097203955Srdivacky 1098193326Sedvoid Driver::BuildJobsForAction(Compilation &C, 1099193326Sed const Action *A, 1100193326Sed const ToolChain *TC, 1101198092Srdivacky const char *BoundArch, 1102193326Sed bool AtTopLevel, 1103193326Sed const char *LinkingOutput, 1104193326Sed InputInfo &Result) const { 1105198092Srdivacky llvm::PrettyStackTraceString CrashInfo("Building compilation jobs"); 1106193326Sed 1107193326Sed if (const InputAction *IA = dyn_cast<InputAction>(A)) { 1108198092Srdivacky // FIXME: It would be nice to not claim this here; maybe the old scheme of 1109198092Srdivacky // just using Args was better? 1110193326Sed const Arg &Input = IA->getInputArg(); 1111193326Sed Input.claim(); 1112210299Sed if (Input.getOption().matches(options::OPT_INPUT)) { 1113193326Sed const char *Name = Input.getValue(C.getArgs()); 1114193326Sed Result = InputInfo(Name, A->getType(), Name); 1115193326Sed } else 1116193326Sed Result = InputInfo(&Input, A->getType(), ""); 1117193326Sed return; 1118193326Sed } 1119193326Sed 1120193326Sed if (const BindArchAction *BAA = dyn_cast<BindArchAction>(A)) { 1121198092Srdivacky const ToolChain *TC = &C.getDefaultToolChain(); 1122198092Srdivacky 1123193326Sed std::string Arch; 1124198092Srdivacky if (BAA->getArchName()) 1125198092Srdivacky TC = Host->CreateToolChain(C.getArgs(), BAA->getArchName()); 1126198092Srdivacky 1127198092Srdivacky BuildJobsForAction(C, *BAA->begin(), TC, BAA->getArchName(), 1128212904Sdim AtTopLevel, LinkingOutput, Result); 1129193326Sed return; 1130193326Sed } 1131193326Sed 1132203955Srdivacky const ActionList *Inputs = &A->getInputs(); 1133203955Srdivacky 1134193326Sed const JobAction *JA = cast<JobAction>(A); 1135203955Srdivacky const Tool &T = SelectToolForJob(C, TC, JA, Inputs); 1136198092Srdivacky 1137193326Sed // Only use pipes when there is exactly one input. 1138193326Sed InputInfoList InputInfos; 1139193326Sed for (ActionList::const_iterator it = Inputs->begin(), ie = Inputs->end(); 1140193326Sed it != ie; ++it) { 1141210299Sed // Treat dsymutil sub-jobs as being at the top-level too, they shouldn't get 1142210299Sed // temporary output names. 1143210299Sed // 1144210299Sed // FIXME: Clean this up. 1145210299Sed bool SubJobAtTopLevel = false; 1146210299Sed if (AtTopLevel && isa<DsymutilJobAction>(A)) 1147210299Sed SubJobAtTopLevel = true; 1148210299Sed 1149193326Sed InputInfo II; 1150212904Sdim BuildJobsForAction(C, *it, TC, BoundArch, 1151210299Sed SubJobAtTopLevel, LinkingOutput, II); 1152193326Sed InputInfos.push_back(II); 1153193326Sed } 1154193326Sed 1155193326Sed // Always use the first input as the base input. 1156193326Sed const char *BaseInput = InputInfos[0].getBaseInput(); 1157193326Sed 1158210299Sed // ... except dsymutil actions, which use their actual input as the base 1159210299Sed // input. 1160210299Sed if (JA->getType() == types::TY_dSYM) 1161210299Sed BaseInput = InputInfos[0].getFilename(); 1162210299Sed 1163212904Sdim // Determine the place to write output to, if any. 1164193326Sed if (JA->getType() == types::TY_Nothing) { 1165193326Sed Result = InputInfo(A->getType(), BaseInput); 1166193326Sed } else { 1167193326Sed Result = InputInfo(GetNamedOutputPath(C, *JA, BaseInput, AtTopLevel), 1168193326Sed A->getType(), BaseInput); 1169193326Sed } 1170193326Sed 1171193326Sed if (CCCPrintBindings) { 1172193326Sed llvm::errs() << "# \"" << T.getToolChain().getTripleString() << '"' 1173193326Sed << " - \"" << T.getName() << "\", inputs: ["; 1174193326Sed for (unsigned i = 0, e = InputInfos.size(); i != e; ++i) { 1175193326Sed llvm::errs() << InputInfos[i].getAsString(); 1176193326Sed if (i + 1 != e) 1177193326Sed llvm::errs() << ", "; 1178193326Sed } 1179193326Sed llvm::errs() << "], output: " << Result.getAsString() << "\n"; 1180193326Sed } else { 1181212904Sdim T.ConstructJob(C, *JA, Result, InputInfos, 1182198092Srdivacky C.getArgsForToolChain(TC, BoundArch), LinkingOutput); 1183193326Sed } 1184193326Sed} 1185193326Sed 1186198092Srdivackyconst char *Driver::GetNamedOutputPath(Compilation &C, 1187193326Sed const JobAction &JA, 1188193326Sed const char *BaseInput, 1189193326Sed bool AtTopLevel) const { 1190193326Sed llvm::PrettyStackTraceString CrashInfo("Computing output path"); 1191193326Sed // Output to a user requested destination? 1192210299Sed if (AtTopLevel && !isa<DsymutilJobAction>(JA)) { 1193193326Sed if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o)) 1194193326Sed return C.addResultFile(FinalOutput->getValue(C.getArgs())); 1195193326Sed } 1196193326Sed 1197212904Sdim // Default to writing to stdout? 1198212904Sdim if (AtTopLevel && isa<PreprocessJobAction>(JA)) 1199212904Sdim return "-"; 1200212904Sdim 1201193326Sed // Output to a temporary file? 1202193326Sed if (!AtTopLevel && !C.getArgs().hasArg(options::OPT_save_temps)) { 1203198092Srdivacky std::string TmpName = 1204193326Sed GetTemporaryPath(types::getTypeTempSuffix(JA.getType())); 1205193326Sed return C.addTempFile(C.getArgs().MakeArgString(TmpName.c_str())); 1206193326Sed } 1207193326Sed 1208218893Sdim llvm::SmallString<128> BasePath(BaseInput); 1209218893Sdim llvm::StringRef BaseName = llvm::sys::path::filename(BasePath); 1210193326Sed 1211193326Sed // Determine what the derived output name should be. 1212193326Sed const char *NamedOutput; 1213193326Sed if (JA.getType() == types::TY_Image) { 1214193326Sed NamedOutput = DefaultImageName.c_str(); 1215193326Sed } else { 1216193326Sed const char *Suffix = types::getTypeTempSuffix(JA.getType()); 1217193326Sed assert(Suffix && "All types used for output should have a suffix."); 1218193326Sed 1219193326Sed std::string::size_type End = std::string::npos; 1220193326Sed if (!types::appendSuffixForType(JA.getType())) 1221193326Sed End = BaseName.rfind('.'); 1222193326Sed std::string Suffixed(BaseName.substr(0, End)); 1223193326Sed Suffixed += '.'; 1224193326Sed Suffixed += Suffix; 1225193326Sed NamedOutput = C.getArgs().MakeArgString(Suffixed.c_str()); 1226193326Sed } 1227193326Sed 1228198092Srdivacky // As an annoying special case, PCH generation doesn't strip the pathname. 1229193326Sed if (JA.getType() == types::TY_PCH) { 1230218893Sdim llvm::sys::path::remove_filename(BasePath); 1231218893Sdim if (BasePath.empty()) 1232193326Sed BasePath = NamedOutput; 1233193326Sed else 1234218893Sdim llvm::sys::path::append(BasePath, NamedOutput); 1235193326Sed return C.addResultFile(C.getArgs().MakeArgString(BasePath.c_str())); 1236193326Sed } else { 1237193326Sed return C.addResultFile(NamedOutput); 1238193326Sed } 1239193326Sed} 1240193326Sed 1241198092Srdivackystd::string Driver::GetFilePath(const char *Name, const ToolChain &TC) const { 1242206084Srdivacky // Respect a limited subset of the '-Bprefix' functionality in GCC by 1243206084Srdivacky // attempting to use this prefix when lokup up program paths. 1244218893Sdim for (Driver::prefix_list::const_iterator it = PrefixDirs.begin(), 1245218893Sdim ie = PrefixDirs.end(); it != ie; ++it) { 1246218893Sdim llvm::sys::Path P(*it); 1247206084Srdivacky P.appendComponent(Name); 1248218893Sdim bool Exists; 1249218893Sdim if (!llvm::sys::fs::exists(P.str(), Exists) && Exists) 1250206084Srdivacky return P.str(); 1251206084Srdivacky } 1252206084Srdivacky 1253193326Sed const ToolChain::path_list &List = TC.getFilePaths(); 1254198092Srdivacky for (ToolChain::path_list::const_iterator 1255193326Sed it = List.begin(), ie = List.end(); it != ie; ++it) { 1256193326Sed llvm::sys::Path P(*it); 1257193326Sed P.appendComponent(Name); 1258218893Sdim bool Exists; 1259218893Sdim if (!llvm::sys::fs::exists(P.str(), Exists) && Exists) 1260198092Srdivacky return P.str(); 1261193326Sed } 1262193326Sed 1263198092Srdivacky return Name; 1264193326Sed} 1265193326Sed 1266198092Srdivackystd::string Driver::GetProgramPath(const char *Name, const ToolChain &TC, 1267198092Srdivacky bool WantFile) const { 1268206084Srdivacky // Respect a limited subset of the '-Bprefix' functionality in GCC by 1269206084Srdivacky // attempting to use this prefix when lokup up program paths. 1270218893Sdim for (Driver::prefix_list::const_iterator it = PrefixDirs.begin(), 1271218893Sdim ie = PrefixDirs.end(); it != ie; ++it) { 1272218893Sdim llvm::sys::Path P(*it); 1273206084Srdivacky P.appendComponent(Name); 1274218893Sdim bool Exists; 1275218893Sdim if (WantFile ? !llvm::sys::fs::exists(P.str(), Exists) && Exists 1276218893Sdim : P.canExecute()) 1277206084Srdivacky return P.str(); 1278206084Srdivacky } 1279206084Srdivacky 1280193326Sed const ToolChain::path_list &List = TC.getProgramPaths(); 1281198092Srdivacky for (ToolChain::path_list::const_iterator 1282193326Sed it = List.begin(), ie = List.end(); it != ie; ++it) { 1283193326Sed llvm::sys::Path P(*it); 1284193326Sed P.appendComponent(Name); 1285218893Sdim bool Exists; 1286218893Sdim if (WantFile ? !llvm::sys::fs::exists(P.str(), Exists) && Exists 1287218893Sdim : P.canExecute()) 1288198092Srdivacky return P.str(); 1289193326Sed } 1290193326Sed 1291193326Sed // If all else failed, search the path. 1292193326Sed llvm::sys::Path P(llvm::sys::Program::FindProgramByName(Name)); 1293193326Sed if (!P.empty()) 1294198092Srdivacky return P.str(); 1295193326Sed 1296198092Srdivacky return Name; 1297193326Sed} 1298193326Sed 1299193326Sedstd::string Driver::GetTemporaryPath(const char *Suffix) const { 1300198092Srdivacky // FIXME: This is lame; sys::Path should provide this function (in particular, 1301198092Srdivacky // it should know how to find the temporary files dir). 1302193326Sed std::string Error; 1303193326Sed const char *TmpDir = ::getenv("TMPDIR"); 1304193326Sed if (!TmpDir) 1305193326Sed TmpDir = ::getenv("TEMP"); 1306193326Sed if (!TmpDir) 1307193326Sed TmpDir = ::getenv("TMP"); 1308193326Sed if (!TmpDir) 1309193326Sed TmpDir = "/tmp"; 1310193326Sed llvm::sys::Path P(TmpDir); 1311193326Sed P.appendComponent("cc"); 1312193326Sed if (P.makeUnique(false, &Error)) { 1313193326Sed Diag(clang::diag::err_drv_unable_to_make_temp) << Error; 1314193326Sed return ""; 1315193326Sed } 1316193326Sed 1317198092Srdivacky // FIXME: Grumble, makeUnique sometimes leaves the file around!? PR3837. 1318193326Sed P.eraseFromDisk(false, 0); 1319193326Sed 1320193326Sed P.appendSuffix(Suffix); 1321198092Srdivacky return P.str(); 1322193326Sed} 1323193326Sed 1324193326Sedconst HostInfo *Driver::GetHostInfo(const char *TripleStr) const { 1325193326Sed llvm::PrettyStackTraceString CrashInfo("Constructing host"); 1326193326Sed llvm::Triple Triple(TripleStr); 1327193326Sed 1328204793Srdivacky // TCE is an osless target 1329204793Srdivacky if (Triple.getArchName() == "tce") 1330210299Sed return createTCEHostInfo(*this, Triple); 1331204793Srdivacky 1332193326Sed switch (Triple.getOS()) { 1333198092Srdivacky case llvm::Triple::AuroraUX: 1334198092Srdivacky return createAuroraUXHostInfo(*this, Triple); 1335193326Sed case llvm::Triple::Darwin: 1336193326Sed return createDarwinHostInfo(*this, Triple); 1337193326Sed case llvm::Triple::DragonFly: 1338193326Sed return createDragonFlyHostInfo(*this, Triple); 1339195341Sed case llvm::Triple::OpenBSD: 1340195341Sed return createOpenBSDHostInfo(*this, Triple); 1341218893Sdim case llvm::Triple::NetBSD: 1342218893Sdim return createNetBSDHostInfo(*this, Triple); 1343193326Sed case llvm::Triple::FreeBSD: 1344193326Sed return createFreeBSDHostInfo(*this, Triple); 1345210299Sed case llvm::Triple::Minix: 1346210299Sed return createMinixHostInfo(*this, Triple); 1347193326Sed case llvm::Triple::Linux: 1348193326Sed return createLinuxHostInfo(*this, Triple); 1349212904Sdim case llvm::Triple::Win32: 1350212904Sdim return createWindowsHostInfo(*this, Triple); 1351212904Sdim case llvm::Triple::MinGW32: 1352212904Sdim return createMinGWHostInfo(*this, Triple); 1353193326Sed default: 1354193326Sed return createUnknownHostInfo(*this, Triple); 1355193326Sed } 1356193326Sed} 1357193326Sed 1358193326Sedbool Driver::ShouldUseClangCompiler(const Compilation &C, const JobAction &JA, 1359198092Srdivacky const llvm::Triple &Triple) const { 1360198092Srdivacky // Check if user requested no clang, or clang doesn't understand this type (we 1361198092Srdivacky // only handle single inputs for now). 1362198092Srdivacky if (!CCCUseClang || JA.size() != 1 || 1363193326Sed !types::isAcceptedByClang((*JA.begin())->getType())) 1364193326Sed return false; 1365193326Sed 1366193326Sed // Otherwise make sure this is an action clang understands. 1367193326Sed if (isa<PreprocessJobAction>(JA)) { 1368193326Sed if (!CCCUseClangCPP) { 1369193326Sed Diag(clang::diag::warn_drv_not_using_clang_cpp); 1370193326Sed return false; 1371193326Sed } 1372193326Sed } else if (!isa<PrecompileJobAction>(JA) && !isa<CompileJobAction>(JA)) 1373193326Sed return false; 1374193326Sed 1375193326Sed // Use clang for C++? 1376193326Sed if (!CCCUseClangCXX && types::isCXX((*JA.begin())->getType())) { 1377193326Sed Diag(clang::diag::warn_drv_not_using_clang_cxx); 1378193326Sed return false; 1379193326Sed } 1380193326Sed 1381203955Srdivacky // Always use clang for precompiling, AST generation, and rewriting, 1382203955Srdivacky // regardless of archs. 1383210299Sed if (isa<PrecompileJobAction>(JA) || 1384210299Sed types::isOnlyAcceptedByClang(JA.getType())) 1385193326Sed return true; 1386193326Sed 1387198092Srdivacky // Finally, don't use clang if this isn't one of the user specified archs to 1388198092Srdivacky // build. 1389198092Srdivacky if (!CCCClangArchs.empty() && !CCCClangArchs.count(Triple.getArch())) { 1390198092Srdivacky Diag(clang::diag::warn_drv_not_using_clang_arch) << Triple.getArchName(); 1391193326Sed return false; 1392193326Sed } 1393193326Sed 1394193326Sed return true; 1395193326Sed} 1396193326Sed 1397198092Srdivacky/// GetReleaseVersion - Parse (([0-9]+)(.([0-9]+)(.([0-9]+)?))?)? and return the 1398198092Srdivacky/// grouped values as integers. Numbers which are not provided are set to 0. 1399193326Sed/// 1400198092Srdivacky/// \return True if the entire string was parsed (9.2), or all groups were 1401198092Srdivacky/// parsed (10.3.5extrastuff). 1402198092Srdivackybool Driver::GetReleaseVersion(const char *Str, unsigned &Major, 1403193326Sed unsigned &Minor, unsigned &Micro, 1404193326Sed bool &HadExtra) { 1405193326Sed HadExtra = false; 1406193326Sed 1407193326Sed Major = Minor = Micro = 0; 1408198092Srdivacky if (*Str == '\0') 1409193326Sed return true; 1410193326Sed 1411193326Sed char *End; 1412193326Sed Major = (unsigned) strtol(Str, &End, 10); 1413193326Sed if (*Str != '\0' && *End == '\0') 1414193326Sed return true; 1415193326Sed if (*End != '.') 1416193326Sed return false; 1417198092Srdivacky 1418193326Sed Str = End+1; 1419193326Sed Minor = (unsigned) strtol(Str, &End, 10); 1420193326Sed if (*Str != '\0' && *End == '\0') 1421193326Sed return true; 1422193326Sed if (*End != '.') 1423193326Sed return false; 1424193326Sed 1425193326Sed Str = End+1; 1426193326Sed Micro = (unsigned) strtol(Str, &End, 10); 1427193326Sed if (*Str != '\0' && *End == '\0') 1428193326Sed return true; 1429193326Sed if (Str == End) 1430193326Sed return false; 1431193326Sed HadExtra = true; 1432193326Sed return true; 1433193326Sed} 1434