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-rw-r--r--contrib/llvm/tools/clang/lib/Driver/Driver.cpp370
1 files changed, 251 insertions, 119 deletions
diff --git a/contrib/llvm/tools/clang/lib/Driver/Driver.cpp b/contrib/llvm/tools/clang/lib/Driver/Driver.cpp
index 4e2d7b6..40e0c00 100644
--- a/contrib/llvm/tools/clang/lib/Driver/Driver.cpp
+++ b/contrib/llvm/tools/clang/lib/Driver/Driver.cpp
@@ -7,10 +7,6 @@
//
//===----------------------------------------------------------------------===//
-#ifdef HAVE_CLANG_CONFIG_H
-# include "clang/Config/config.h"
-#endif
-
#include "clang/Driver/Driver.h"
#include "clang/Driver/Action.h"
@@ -18,7 +14,6 @@
#include "clang/Driver/ArgList.h"
#include "clang/Driver/Compilation.h"
#include "clang/Driver/DriverDiagnostic.h"
-#include "clang/Driver/HostInfo.h"
#include "clang/Driver/Job.h"
#include "clang/Driver/OptTable.h"
#include "clang/Driver/Option.h"
@@ -28,7 +23,6 @@
#include "clang/Basic/Version.h"
-#include "llvm/Config/config.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/StringSet.h"
#include "llvm/ADT/OwningPtr.h"
@@ -40,22 +34,25 @@
#include "llvm/Support/Program.h"
#include "InputInfo.h"
+#include "ToolChains.h"
#include <map>
+#include "clang/Config/config.h"
+
using namespace clang::driver;
using namespace clang;
Driver::Driver(StringRef ClangExecutable,
- StringRef DefaultHostTriple,
+ StringRef DefaultTargetTriple,
StringRef DefaultImageName,
bool IsProduction,
DiagnosticsEngine &Diags)
: Opts(createDriverOptTable()), Diags(Diags),
ClangExecutable(ClangExecutable), UseStdLib(true),
- DefaultHostTriple(DefaultHostTriple), DefaultImageName(DefaultImageName),
+ DefaultTargetTriple(DefaultTargetTriple),
+ DefaultImageName(DefaultImageName),
DriverTitle("clang \"gcc-compatible\" driver"),
- Host(0),
CCPrintOptionsFilename(0), CCPrintHeadersFilename(0),
CCLogDiagnosticsFilename(0), CCCIsCXX(false),
CCCIsCPP(false),CCCEcho(false), CCCPrintBindings(false),
@@ -65,7 +62,7 @@ Driver::Driver(StringRef ClangExecutable,
CCCUsePCH(true), SuppressMissingInputWarning(false) {
if (IsProduction) {
// In a "production" build, only use clang on architectures we expect to
- // work, and don't use clang C++.
+ // work.
//
// During development its more convenient to always have the driver use
// clang, but we don't want users to be confused when things don't work, or
@@ -80,7 +77,7 @@ Driver::Driver(StringRef ClangExecutable,
// Compute the path to the resource directory.
StringRef ClangResourceDir(CLANG_RESOURCE_DIR);
- llvm::SmallString<128> P(Dir);
+ SmallString<128> P(Dir);
if (ClangResourceDir != "")
llvm::sys::path::append(P, ClangResourceDir);
else
@@ -90,7 +87,11 @@ Driver::Driver(StringRef ClangExecutable,
Driver::~Driver() {
delete Opts;
- delete Host;
+
+ for (llvm::StringMap<ToolChain *>::iterator I = ToolChains.begin(),
+ E = ToolChains.end();
+ I != E; ++I)
+ delete I->second;
}
InputArgList *Driver::ParseArgStrings(ArrayRef<const char *> ArgList) {
@@ -112,6 +113,12 @@ InputArgList *Driver::ParseArgStrings(ArrayRef<const char *> ArgList) {
Diag(clang::diag::err_drv_unsupported_opt) << A->getAsString(*Args);
continue;
}
+
+ // Warn about -mcpu= without an argument.
+ if (A->getOption().matches(options::OPT_mcpu_EQ) &&
+ A->containsValue("")) {
+ Diag(clang::diag::warn_drv_empty_joined_argument) << A->getAsString(*Args);
+ }
}
return Args;
@@ -134,8 +141,10 @@ const {
// -{fsyntax-only,-analyze,emit-ast,S} only run up to the compiler.
} else if ((PhaseArg = DAL.getLastArg(options::OPT_fsyntax_only)) ||
(PhaseArg = DAL.getLastArg(options::OPT_rewrite_objc)) ||
+ (PhaseArg = DAL.getLastArg(options::OPT_rewrite_legacy_objc)) ||
+ (PhaseArg = DAL.getLastArg(options::OPT__migrate)) ||
(PhaseArg = DAL.getLastArg(options::OPT__analyze,
- options::OPT__analyze_auto)) ||
+ options::OPT__analyze_auto)) ||
(PhaseArg = DAL.getLastArg(options::OPT_emit_ast)) ||
(PhaseArg = DAL.getLastArg(options::OPT_S))) {
FinalPhase = phases::Compile;
@@ -239,7 +248,7 @@ Compilation *Driver::BuildCompilation(ArrayRef<const char *> ArgList) {
llvm::PrettyStackTraceString CrashInfo("Compilation construction");
// FIXME: Handle environment options which affect driver behavior, somewhere
- // (client?). GCC_EXEC_PREFIX, LIBRARY_PATH, LPATH, CC_PRINT_OPTIONS.
+ // (client?). GCC_EXEC_PREFIX, LPATH, CC_PRINT_OPTIONS.
if (char *env = ::getenv("COMPILER_PATH")) {
StringRef CompilerPath = env;
@@ -303,10 +312,10 @@ Compilation *Driver::BuildCompilation(ArrayRef<const char *> ArgList) {
Cur = Split.second;
}
}
- // FIXME: We shouldn't overwrite the default host triple here, but we have
- // nowhere else to put this currently.
- if (const Arg *A = Args->getLastArg(options::OPT_ccc_host_triple))
- DefaultHostTriple = A->getValue(*Args);
+ // FIXME: DefaultTargetTriple is used by the target-prefixed calls to as/ld
+ // and getToolChain is const.
+ if (const Arg *A = Args->getLastArg(options::OPT_target))
+ DefaultTargetTriple = A->getValue(*Args);
if (const Arg *A = Args->getLastArg(options::OPT_ccc_install_dir))
Dir = InstalledDir = A->getValue(*Args);
for (arg_iterator it = Args->filtered_begin(options::OPT_B),
@@ -320,14 +329,14 @@ Compilation *Driver::BuildCompilation(ArrayRef<const char *> ArgList) {
if (Args->hasArg(options::OPT_nostdlib))
UseStdLib = false;
- Host = GetHostInfo(DefaultHostTriple.c_str());
-
// Perform the default argument translations.
DerivedArgList *TranslatedArgs = TranslateInputArgs(*Args);
+ // Owned by the host.
+ const ToolChain &TC = getToolChain(*Args);
+
// The compilation takes ownership of Args.
- Compilation *C = new Compilation(*this, *Host->CreateToolChain(*Args), Args,
- TranslatedArgs);
+ Compilation *C = new Compilation(*this, TC, Args, TranslatedArgs);
// FIXME: This behavior shouldn't be here.
if (CCCPrintOptions) {
@@ -342,8 +351,9 @@ Compilation *Driver::BuildCompilation(ArrayRef<const char *> ArgList) {
InputList Inputs;
BuildInputs(C->getDefaultToolChain(), C->getArgs(), Inputs);
- // Construct the list of abstract actions to perform for this compilation.
- if (Host->useDriverDriver())
+ // Construct the list of abstract actions to perform for this compilation. On
+ // Darwin target OSes this uses the driver-driver and universal actions.
+ if (TC.getTriple().isOSDarwin())
BuildUniversalActions(C->getDefaultToolChain(), C->getArgs(),
Inputs, C->getActions());
else
@@ -365,6 +375,13 @@ Compilation *Driver::BuildCompilation(ArrayRef<const char *> ArgList) {
// diagnostic information to a bug report.
void Driver::generateCompilationDiagnostics(Compilation &C,
const Command *FailingCommand) {
+ if (C.getArgs().hasArg(options::OPT_fno_crash_diagnostics))
+ return;
+
+ // Don't try to generate diagnostics for link jobs.
+ if (FailingCommand->getCreator().isLinkJob())
+ return;
+
Diag(clang::diag::note_drv_command_failed_diag_msg)
<< "Please submit a bug report to " BUG_REPORT_URL " and include command"
" line arguments and all diagnostic information.";
@@ -373,6 +390,12 @@ void Driver::generateCompilationDiagnostics(Compilation &C,
CCCIsCPP = true;
CCGenDiagnostics = true;
+ // Save the original job command(s).
+ std::string Cmd;
+ llvm::raw_string_ostream OS(Cmd);
+ C.PrintJob(OS, C.getJobs(), "\n", false);
+ OS.flush();
+
// Clear stale state and suppress tool output.
C.initCompilationForDiagnostics();
Diags.Reset();
@@ -403,21 +426,22 @@ void Driver::generateCompilationDiagnostics(Compilation &C,
}
// Don't attempt to generate preprocessed files if multiple -arch options are
- // used.
- int Archs = 0;
+ // used, unless they're all duplicates.
+ llvm::StringSet<> ArchNames;
for (ArgList::const_iterator it = C.getArgs().begin(), ie = C.getArgs().end();
it != ie; ++it) {
Arg *A = *it;
if (A->getOption().matches(options::OPT_arch)) {
- Archs++;
- if (Archs > 1) {
- Diag(clang::diag::note_drv_command_failed_diag_msg)
- << "Error generating preprocessed source(s) - cannot generate "
- "preprocessed source with multiple -arch options.";
- return;
- }
+ StringRef ArchName = A->getValue(C.getArgs());
+ ArchNames.insert(ArchName);
}
}
+ if (ArchNames.size() > 1) {
+ Diag(clang::diag::note_drv_command_failed_diag_msg)
+ << "Error generating preprocessed source(s) - cannot generate "
+ "preprocessed source with multiple -arch options.";
+ return;
+ }
if (Inputs.empty()) {
Diag(clang::diag::note_drv_command_failed_diag_msg)
@@ -425,13 +449,13 @@ void Driver::generateCompilationDiagnostics(Compilation &C,
return;
}
- // Construct the list of abstract actions to perform for this compilation.
- if (Host->useDriverDriver())
- BuildUniversalActions(C.getDefaultToolChain(), C.getArgs(),
- Inputs, C.getActions());
+ // Construct the list of abstract actions to perform for this compilation. On
+ // Darwin OSes this uses the driver-driver and builds universal actions.
+ const ToolChain &TC = C.getDefaultToolChain();
+ if (TC.getTriple().isOSDarwin())
+ BuildUniversalActions(TC, C.getArgs(), Inputs, C.getActions());
else
- BuildActions(C.getDefaultToolChain(), C.getArgs(), Inputs,
- C.getActions());
+ BuildActions(TC, C.getArgs(), Inputs, C.getActions());
BuildJobs(C);
@@ -449,11 +473,26 @@ void Driver::generateCompilationDiagnostics(Compilation &C,
// If the command succeeded, we are done.
if (Res == 0) {
Diag(clang::diag::note_drv_command_failed_diag_msg)
- << "Preprocessed source(s) are located at:";
+ << "Preprocessed source(s) and associated run script(s) are located at:";
ArgStringList Files = C.getTempFiles();
for (ArgStringList::const_iterator it = Files.begin(), ie = Files.end();
- it != ie; ++it)
+ it != ie; ++it) {
Diag(clang::diag::note_drv_command_failed_diag_msg) << *it;
+
+ std::string Err;
+ std::string Script = StringRef(*it).rsplit('.').first;
+ Script += ".sh";
+ llvm::raw_fd_ostream ScriptOS(Script.c_str(), Err,
+ llvm::raw_fd_ostream::F_Excl |
+ llvm::raw_fd_ostream::F_Binary);
+ if (!Err.empty()) {
+ Diag(clang::diag::note_drv_command_failed_diag_msg)
+ << "Error generating run script: " + Script + " " + Err;
+ } else {
+ ScriptOS << Cmd;
+ Diag(clang::diag::note_drv_command_failed_diag_msg) << Script;
+ }
+ }
} else {
// Failure, remove preprocessed files.
if (!C.getArgs().hasArg(options::OPT_save_temps))
@@ -486,9 +525,20 @@ int Driver::ExecuteCompilation(const Compilation &C,
return Res;
// Otherwise, remove result files as well.
- if (!C.getArgs().hasArg(options::OPT_save_temps))
+ if (!C.getArgs().hasArg(options::OPT_save_temps)) {
C.CleanupFileList(C.getResultFiles(), true);
+ // Failure result files are valid unless we crashed.
+ if (Res < 0) {
+ C.CleanupFileList(C.getFailureResultFiles(), true);
+#ifdef _WIN32
+ // Exit status should not be negative on Win32,
+ // unless abnormal termination.
+ Res = 1;
+#endif
+ }
+ }
+
// Print extra information about abnormal failures, if possible.
//
// This is ad-hoc, but we don't want to be excessively noisy. If the result
@@ -502,7 +552,7 @@ int Driver::ExecuteCompilation(const Compilation &C,
// FIXME: See FIXME above regarding result code interpretation.
if (Res < 0)
Diag(clang::diag::err_drv_command_signalled)
- << FailingTool.getShortName() << -Res;
+ << FailingTool.getShortName();
else
Diag(clang::diag::err_drv_command_failed)
<< FailingTool.getShortName() << Res;
@@ -820,35 +870,32 @@ void Driver::BuildUniversalActions(const ToolChain &TC,
else
Actions.push_back(new LipoJobAction(Inputs, Act->getType()));
- // Add a 'dsymutil' step if necessary, when debug info is enabled and we
- // have a compile input. We need to run 'dsymutil' ourselves in such cases
- // because the debug info will refer to a temporary object file which is
- // will be removed at the end of the compilation process.
- if (Act->getType() == types::TY_Image) {
- Arg *A = Args.getLastArg(options::OPT_g_Group);
+ // Handle debug info queries.
+ Arg *A = Args.getLastArg(options::OPT_g_Group);
if (A && !A->getOption().matches(options::OPT_g0) &&
!A->getOption().matches(options::OPT_gstabs) &&
ContainsCompileOrAssembleAction(Actions.back())) {
- ActionList Inputs;
- Inputs.push_back(Actions.back());
- Actions.pop_back();
-
- Actions.push_back(new DsymutilJobAction(Inputs, types::TY_dSYM));
-
- // Verify the debug output if we're in assert mode.
- // TODO: The verifier is noisy by default so put this under an
- // option for now.
- #ifndef NDEBUG
- if (Args.hasArg(options::OPT_verify)) {
- ActionList VerifyInputs;
+
+ // Add a 'dsymutil' step if necessary, when debug info is enabled and we
+ // have a compile input. We need to run 'dsymutil' ourselves in such cases
+ // because the debug info will refer to a temporary object file which is
+ // will be removed at the end of the compilation process.
+ if (Act->getType() == types::TY_Image) {
+ ActionList Inputs;
+ Inputs.push_back(Actions.back());
+ Actions.pop_back();
+ Actions.push_back(new DsymutilJobAction(Inputs, types::TY_dSYM));
+ }
+
+ // Verify the output (debug information only) if we passed '-verify'.
+ if (Args.hasArg(options::OPT_verify)) {
+ ActionList VerifyInputs;
VerifyInputs.push_back(Actions.back());
Actions.pop_back();
Actions.push_back(new VerifyJobAction(VerifyInputs,
types::TY_Nothing));
}
- #endif
}
- }
}
}
@@ -931,15 +978,17 @@ void Driver::BuildInputs(const ToolChain &TC, const DerivedArgList &Args,
// Check that the file exists, if enabled.
if (CheckInputsExist && memcmp(Value, "-", 2) != 0) {
- llvm::SmallString<64> Path(Value);
- if (Arg *WorkDir = Args.getLastArg(options::OPT_working_directory))
- if (llvm::sys::path::is_absolute(Path.str())) {
- Path = WorkDir->getValue(Args);
- llvm::sys::path::append(Path, Value);
+ SmallString<64> Path(Value);
+ if (Arg *WorkDir = Args.getLastArg(options::OPT_working_directory)) {
+ SmallString<64> Directory(WorkDir->getValue(Args));
+ if (llvm::sys::path::is_absolute(Directory.str())) {
+ llvm::sys::path::append(Directory, Value);
+ Path.assign(Directory);
}
+ }
bool exists = false;
- if (/*error_code ec =*/llvm::sys::fs::exists(Value, exists) || !exists)
+ if (llvm::sys::fs::exists(Path.c_str(), exists) || !exists)
Diag(clang::diag::err_drv_no_such_file) << Path.str();
else
Inputs.push_back(std::make_pair(Ty, A));
@@ -954,6 +1003,7 @@ void Driver::BuildInputs(const ToolChain &TC, const DerivedArgList &Args,
} else if (A->getOption().matches(options::OPT_x)) {
InputTypeArg = A;
InputType = types::lookupTypeForTypeSpecifier(A->getValue(Args));
+ A->claim();
// Follow gcc behavior and treat as linker input for invalid -x
// options. Its not clear why we shouldn't just revert to unknown; but
@@ -993,11 +1043,12 @@ void Driver::BuildActions(const ToolChain &TC, const DerivedArgList &Args,
// Construct the actions to perform.
ActionList LinkerInputs;
+ unsigned NumSteps = 0;
for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
types::ID InputType = Inputs[i].first;
const Arg *InputArg = Inputs[i].second;
- unsigned NumSteps = types::getNumCompilationPhases(InputType);
+ NumSteps = types::getNumCompilationPhases(InputType);
assert(NumSteps && "Invalid number of steps!");
// If the first step comes after the final phase we are doing as part of
@@ -1027,7 +1078,7 @@ void Driver::BuildActions(const ToolChain &TC, const DerivedArgList &Args,
}
// Build the pipeline for this file.
- llvm::OwningPtr<Action> Current(new InputAction(*InputArg, InputType));
+ OwningPtr<Action> Current(new InputAction(*InputArg, InputType));
for (unsigned i = 0; i != NumSteps; ++i) {
phases::ID Phase = types::getCompilationPhase(InputType, i);
@@ -1065,7 +1116,7 @@ void Driver::BuildActions(const ToolChain &TC, const DerivedArgList &Args,
// If we are linking, claim any options which are obviously only used for
// compilation.
- if (FinalPhase == phases::Link)
+ if (FinalPhase == phases::Link && (NumSteps == 1))
Args.ClaimAllArgs(options::OPT_CompileOnly_Group);
}
@@ -1094,8 +1145,12 @@ Action *Driver::ConstructPhaseAction(const ArgList &Args, phases::ID Phase,
return new CompileJobAction(Input, types::TY_Nothing);
} else if (Args.hasArg(options::OPT_rewrite_objc)) {
return new CompileJobAction(Input, types::TY_RewrittenObjC);
+ } else if (Args.hasArg(options::OPT_rewrite_legacy_objc)) {
+ return new CompileJobAction(Input, types::TY_RewrittenLegacyObjC);
} else if (Args.hasArg(options::OPT__analyze, options::OPT__analyze_auto)) {
return new AnalyzeJobAction(Input, types::TY_Plist);
+ } else if (Args.hasArg(options::OPT__migrate)) {
+ return new MigrateJobAction(Input, types::TY_Remap);
} else if (Args.hasArg(options::OPT_emit_ast)) {
return new CompileJobAction(Input, types::TY_AST);
} else if (IsUsingLTO(Args)) {
@@ -1225,17 +1280,9 @@ static const Tool &SelectToolForJob(Compilation &C, const ToolChain *TC,
// bottom up, so what we are actually looking for is an assembler job with a
// compiler input.
- // FIXME: This doesn't belong here, but ideally we will support static soon
- // anyway.
- bool HasStatic = (C.getArgs().hasArg(options::OPT_mkernel) ||
- C.getArgs().hasArg(options::OPT_static) ||
- C.getArgs().hasArg(options::OPT_fapple_kext));
- bool IsDarwin = TC->getTriple().isOSDarwin();
- bool IsIADefault = TC->IsIntegratedAssemblerDefault() &&
- !(HasStatic && IsDarwin);
if (C.getArgs().hasFlag(options::OPT_integrated_as,
- options::OPT_no_integrated_as,
- IsIADefault) &&
+ options::OPT_no_integrated_as,
+ TC->IsIntegratedAssemblerDefault()) &&
!C.getArgs().hasArg(options::OPT_save_temps) &&
isa<AssembleJobAction>(JA) &&
Inputs->size() == 1 && isa<CompileJobAction>(*Inputs->begin())) {
@@ -1289,9 +1336,8 @@ void Driver::BuildJobsForAction(Compilation &C,
if (const BindArchAction *BAA = dyn_cast<BindArchAction>(A)) {
const ToolChain *TC = &C.getDefaultToolChain();
- std::string Arch;
if (BAA->getArchName())
- TC = Host->CreateToolChain(C.getArgs(), BAA->getArchName());
+ TC = &getToolChain(C.getArgs(), BAA->getArchName());
BuildJobsForAction(C, *BAA->begin(), TC, BAA->getArchName(),
AtTopLevel, LinkingOutput, Result);
@@ -1383,7 +1429,7 @@ const char *Driver::GetNamedOutputPath(Compilation &C,
return C.addTempFile(C.getArgs().MakeArgString(TmpName.c_str()));
}
- llvm::SmallString<128> BasePath(BaseInput);
+ SmallString<128> BasePath(BaseInput);
StringRef BaseName;
// Dsymutil actions should use the full path.
@@ -1482,7 +1528,8 @@ static bool isPathExecutable(llvm::sys::Path &P, bool WantFile) {
std::string Driver::GetProgramPath(const char *Name, const ToolChain &TC,
bool WantFile) const {
- std::string TargetSpecificExecutable(DefaultHostTriple + "-" + Name);
+ // FIXME: Needs a better variable than DefaultTargetTriple
+ std::string TargetSpecificExecutable(DefaultTargetTriple + "-" + Name);
// Respect a limited subset of the '-Bprefix' functionality in GCC by
// attempting to use this prefix when lokup up program paths.
for (Driver::prefix_list::const_iterator it = PrefixDirs.begin(),
@@ -1545,40 +1592,125 @@ std::string Driver::GetTemporaryPath(StringRef Prefix, const char *Suffix)
return P.str();
}
-const HostInfo *Driver::GetHostInfo(const char *TripleStr) const {
- llvm::PrettyStackTraceString CrashInfo("Constructing host");
- llvm::Triple Triple(llvm::Triple::normalize(TripleStr).c_str());
-
- // TCE is an osless target
- if (Triple.getArchName() == "tce")
- return createTCEHostInfo(*this, Triple);
-
- switch (Triple.getOS()) {
- case llvm::Triple::AuroraUX:
- return createAuroraUXHostInfo(*this, Triple);
- case llvm::Triple::Darwin:
- case llvm::Triple::MacOSX:
- case llvm::Triple::IOS:
- return createDarwinHostInfo(*this, Triple);
- case llvm::Triple::DragonFly:
- return createDragonFlyHostInfo(*this, Triple);
- case llvm::Triple::OpenBSD:
- return createOpenBSDHostInfo(*this, Triple);
- case llvm::Triple::NetBSD:
- return createNetBSDHostInfo(*this, Triple);
- case llvm::Triple::FreeBSD:
- return createFreeBSDHostInfo(*this, Triple);
- case llvm::Triple::Minix:
- return createMinixHostInfo(*this, Triple);
- case llvm::Triple::Linux:
- return createLinuxHostInfo(*this, Triple);
- case llvm::Triple::Win32:
- return createWindowsHostInfo(*this, Triple);
- case llvm::Triple::MinGW32:
- return createMinGWHostInfo(*this, Triple);
- default:
- return createUnknownHostInfo(*this, Triple);
+/// \brief Compute target triple from args.
+///
+/// This routine provides the logic to compute a target triple from various
+/// args passed to the driver and the default triple string.
+static llvm::Triple computeTargetTriple(StringRef DefaultTargetTriple,
+ const ArgList &Args,
+ StringRef DarwinArchName) {
+ // FIXME: Already done in Compilation *Driver::BuildCompilation
+ if (const Arg *A = Args.getLastArg(options::OPT_target))
+ DefaultTargetTriple = A->getValue(Args);
+
+ llvm::Triple Target(llvm::Triple::normalize(DefaultTargetTriple));
+
+ // Handle Darwin-specific options available here.
+ if (Target.isOSDarwin()) {
+ // If an explict Darwin arch name is given, that trumps all.
+ if (!DarwinArchName.empty()) {
+ Target.setArch(
+ llvm::Triple::getArchTypeForDarwinArchName(DarwinArchName));
+ return Target;
+ }
+
+ // Handle the Darwin '-arch' flag.
+ if (Arg *A = Args.getLastArg(options::OPT_arch)) {
+ llvm::Triple::ArchType DarwinArch
+ = llvm::Triple::getArchTypeForDarwinArchName(A->getValue(Args));
+ if (DarwinArch != llvm::Triple::UnknownArch)
+ Target.setArch(DarwinArch);
+ }
+ }
+
+ // Skip further flag support on OSes which don't support '-m32' or '-m64'.
+ if (Target.getArchName() == "tce" ||
+ Target.getOS() == llvm::Triple::AuroraUX ||
+ Target.getOS() == llvm::Triple::Minix)
+ return Target;
+
+ // Handle pseudo-target flags '-m32' and '-m64'.
+ // FIXME: Should this information be in llvm::Triple?
+ if (Arg *A = Args.getLastArg(options::OPT_m32, options::OPT_m64)) {
+ if (A->getOption().matches(options::OPT_m32)) {
+ if (Target.getArch() == llvm::Triple::x86_64)
+ Target.setArch(llvm::Triple::x86);
+ if (Target.getArch() == llvm::Triple::ppc64)
+ Target.setArch(llvm::Triple::ppc);
+ } else {
+ if (Target.getArch() == llvm::Triple::x86)
+ Target.setArch(llvm::Triple::x86_64);
+ if (Target.getArch() == llvm::Triple::ppc)
+ Target.setArch(llvm::Triple::ppc64);
+ }
+ }
+
+ return Target;
+}
+
+const ToolChain &Driver::getToolChain(const ArgList &Args,
+ StringRef DarwinArchName) const {
+ llvm::Triple Target = computeTargetTriple(DefaultTargetTriple, Args,
+ DarwinArchName);
+
+ ToolChain *&TC = ToolChains[Target.str()];
+ if (!TC) {
+ switch (Target.getOS()) {
+ case llvm::Triple::AuroraUX:
+ TC = new toolchains::AuroraUX(*this, Target, Args);
+ break;
+ case llvm::Triple::Darwin:
+ case llvm::Triple::MacOSX:
+ case llvm::Triple::IOS:
+ if (Target.getArch() == llvm::Triple::x86 ||
+ Target.getArch() == llvm::Triple::x86_64 ||
+ Target.getArch() == llvm::Triple::arm ||
+ Target.getArch() == llvm::Triple::thumb)
+ TC = new toolchains::DarwinClang(*this, Target);
+ else
+ TC = new toolchains::Darwin_Generic_GCC(*this, Target, Args);
+ break;
+ case llvm::Triple::DragonFly:
+ TC = new toolchains::DragonFly(*this, Target, Args);
+ break;
+ case llvm::Triple::OpenBSD:
+ TC = new toolchains::OpenBSD(*this, Target, Args);
+ break;
+ case llvm::Triple::NetBSD:
+ TC = new toolchains::NetBSD(*this, Target, Args);
+ break;
+ case llvm::Triple::FreeBSD:
+ TC = new toolchains::FreeBSD(*this, Target, Args);
+ break;
+ case llvm::Triple::Minix:
+ TC = new toolchains::Minix(*this, Target, Args);
+ break;
+ case llvm::Triple::Linux:
+ if (Target.getArch() == llvm::Triple::hexagon)
+ TC = new toolchains::Hexagon_TC(*this, Target);
+ else
+ TC = new toolchains::Linux(*this, Target, Args);
+ break;
+ case llvm::Triple::Solaris:
+ TC = new toolchains::Solaris(*this, Target, Args);
+ break;
+ case llvm::Triple::Win32:
+ TC = new toolchains::Windows(*this, Target);
+ break;
+ case llvm::Triple::MinGW32:
+ // FIXME: We need a MinGW toolchain. Fallthrough for now.
+ default:
+ // TCE is an OSless target
+ if (Target.getArchName() == "tce") {
+ TC = new toolchains::TCEToolChain(*this, Target);
+ break;
+ }
+
+ TC = new toolchains::Generic_GCC(*this, Target, Args);
+ break;
+ }
}
+ return *TC;
}
bool Driver::ShouldUseClangCompiler(const Compilation &C, const JobAction &JA,
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