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ara-mdk / platform / external / clang / c7f811638f8603fa373d2be724e8b1c8ba51ad75 / . / lib / Driver / Tools.cpp
blob: 4db492a13a123656168005e11360269352e0e49d [file] [log] [blame]
//===--- Tools.cpp - Tools Implementations --------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "Tools.h"
#include "InputInfo.h"
#include "SanitizerArgs.h"
#include "ToolChains.h"
#include "clang/Basic/ObjCRuntime.h"
#include "clang/Basic/Version.h"
#include "clang/Driver/Action.h"
#include "clang/Driver/Arg.h"
#include "clang/Driver/ArgList.h"
#include "clang/Driver/Compilation.h"
#include "clang/Driver/Driver.h"
#include "clang/Driver/DriverDiagnostic.h"
#include "clang/Driver/Job.h"
#include "clang/Driver/Option.h"
#include "clang/Driver/Options.h"
#include "clang/Driver/ToolChain.h"
#include "clang/Driver/Util.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/Host.h"
#include "llvm/Support/Process.h"
#include "llvm/Support/raw_ostream.h"
using namespace clang::driver;
using namespace clang::driver::tools;
using namespace clang;
/// CheckPreprocessingOptions - Perform some validation of preprocessing
/// arguments that is shared with gcc.
static void CheckPreprocessingOptions(const Driver &D, const ArgList &Args) {
if (Arg *A = Args.getLastArg(options::OPT_C, options::OPT_CC))
if (!Args.hasArg(options::OPT_E) && !D.CCCIsCPP)
D.Diag(diag::err_drv_argument_only_allowed_with)
<< A->getAsString(Args) << "-E";
}
/// CheckCodeGenerationOptions - Perform some validation of code generation
/// arguments that is shared with gcc.
static void CheckCodeGenerationOptions(const Driver &D, const ArgList &Args) {
// In gcc, only ARM checks this, but it seems reasonable to check universally.
if (Args.hasArg(options::OPT_static))
if (const Arg *A = Args.getLastArg(options::OPT_dynamic,
options::OPT_mdynamic_no_pic))
D.Diag(diag::err_drv_argument_not_allowed_with)
<< A->getAsString(Args) << "-static";
}
// Quote target names for inclusion in GNU Make dependency files.
// Only the characters '$', '#', ' ', '\t' are quoted.
static void QuoteTarget(StringRef Target,
SmallVectorImpl<char> &Res) {
for (unsigned i = 0, e = Target.size(); i != e; ++i) {
switch (Target[i]) {
case ' ':
case '\t':
// Escape the preceding backslashes
for (int j = i - 1; j >= 0 && Target[j] == '\\'; --j)
Res.push_back('\\');
// Escape the space/tab
Res.push_back('\\');
break;
case '$':
Res.push_back('$');
break;
case '#':
Res.push_back('\\');
break;
default:
break;
}
Res.push_back(Target[i]);
}
}
static void addDirectoryList(const ArgList &Args,
ArgStringList &CmdArgs,
const char *ArgName,
const char *EnvVar) {
const char *DirList = ::getenv(EnvVar);
bool CombinedArg = false;
if (!DirList)
return; // Nothing to do.
StringRef Name(ArgName);
if (Name.equals("-I") || Name.equals("-L"))
CombinedArg = true;
StringRef Dirs(DirList);
if (Dirs.empty()) // Empty string should not add '.'.
return;
StringRef::size_type Delim;
while ((Delim = Dirs.find(llvm::sys::PathSeparator)) != StringRef::npos) {
if (Delim == 0) { // Leading colon.
if (CombinedArg) {
CmdArgs.push_back(Args.MakeArgString(std::string(ArgName) + "."));
} else {
CmdArgs.push_back(ArgName);
CmdArgs.push_back(".");
}
} else {
if (CombinedArg) {
CmdArgs.push_back(Args.MakeArgString(std::string(ArgName) + Dirs.substr(0, Delim)));
} else {
CmdArgs.push_back(ArgName);
CmdArgs.push_back(Args.MakeArgString(Dirs.substr(0, Delim)));
}
}
Dirs = Dirs.substr(Delim + 1);
}
if (Dirs.empty()) { // Trailing colon.
if (CombinedArg) {
CmdArgs.push_back(Args.MakeArgString(std::string(ArgName) + "."));
} else {
CmdArgs.push_back(ArgName);
CmdArgs.push_back(".");
}
} else { // Add the last path.
if (CombinedArg) {
CmdArgs.push_back(Args.MakeArgString(std::string(ArgName) + Dirs));
} else {
CmdArgs.push_back(ArgName);
CmdArgs.push_back(Args.MakeArgString(Dirs));
}
}
}
static void AddLinkerInputs(const ToolChain &TC,
const InputInfoList &Inputs, const ArgList &Args,
ArgStringList &CmdArgs) {
const Driver &D = TC.getDriver();
// Add extra linker input arguments which are not treated as inputs
// (constructed via -Xarch_).
Args.AddAllArgValues(CmdArgs, options::OPT_Zlinker_input);
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
const InputInfo &II = *it;
if (!TC.HasNativeLLVMSupport()) {
// Don't try to pass LLVM inputs unless we have native support.
if (II.getType() == types::TY_LLVM_IR ||
II.getType() == types::TY_LTO_IR ||
II.getType() == types::TY_LLVM_BC ||
II.getType() == types::TY_LTO_BC)
D.Diag(diag::err_drv_no_linker_llvm_support)
<< TC.getTripleString();
}
// Add filenames immediately.
if (II.isFilename()) {
CmdArgs.push_back(II.getFilename());
continue;
}
// Otherwise, this is a linker input argument.
const Arg &A = II.getInputArg();
// Handle reserved library options.
if (A.getOption().matches(options::OPT_Z_reserved_lib_stdcxx)) {
TC.AddCXXStdlibLibArgs(Args, CmdArgs);
} else if (A.getOption().matches(options::OPT_Z_reserved_lib_cckext)) {
TC.AddCCKextLibArgs(Args, CmdArgs);
} else
A.renderAsInput(Args, CmdArgs);
}
// LIBRARY_PATH - included following the user specified library paths.
addDirectoryList(Args, CmdArgs, "-L", "LIBRARY_PATH");
}
/// \brief Determine whether Objective-C automated reference counting is
/// enabled.
static bool isObjCAutoRefCount(const ArgList &Args) {
return Args.hasFlag(options::OPT_fobjc_arc, options::OPT_fno_objc_arc, false);
}
/// \brief Determine whether we are linking the ObjC runtime.
static bool isObjCRuntimeLinked(const ArgList &Args) {
if (isObjCAutoRefCount(Args)) {
Args.ClaimAllArgs(options::OPT_fobjc_link_runtime);
return true;
}
return Args.hasArg(options::OPT_fobjc_link_runtime);
}
static void addProfileRT(const ToolChain &TC, const ArgList &Args,
ArgStringList &CmdArgs,
llvm::Triple Triple) {
if (!(Args.hasArg(options::OPT_fprofile_arcs) ||
Args.hasArg(options::OPT_fprofile_generate) ||
Args.hasArg(options::OPT_fcreate_profile) ||
Args.hasArg(options::OPT_coverage)))
return;
// GCC links libgcov.a by adding -L<inst>/gcc/lib/gcc/<triple>/<ver> -lgcov to
// the link line. We cannot do the same thing because unlike gcov there is a
// libprofile_rt.so. We used to use the -l:libprofile_rt.a syntax, but that is
// not supported by old linkers.
std::string ProfileRT =
std::string(TC.getDriver().Dir) + "/../lib/libprofile_rt.a";
CmdArgs.push_back(Args.MakeArgString(ProfileRT));
}
static bool forwardToGCC(const Option &O) {
return !O.hasFlag(options::NoForward) &&
!O.hasFlag(options::DriverOption) &&
!O.hasFlag(options::LinkerInput);
}
void Clang::AddPreprocessingOptions(Compilation &C,
const JobAction &JA,
const Driver &D,
const ArgList &Args,
ArgStringList &CmdArgs,
const InputInfo &Output,
const InputInfoList &Inputs) const {
Arg *A;
CheckPreprocessingOptions(D, Args);
Args.AddLastArg(CmdArgs, options::OPT_C);
Args.AddLastArg(CmdArgs, options::OPT_CC);
// Handle dependency file generation.
if ((A = Args.getLastArg(options::OPT_M, options::OPT_MM)) ||
(A = Args.getLastArg(options::OPT_MD)) ||
(A = Args.getLastArg(options::OPT_MMD))) {
// Determine the output location.
const char *DepFile;
if (Arg *MF = Args.getLastArg(options::OPT_MF)) {
DepFile = MF->getValue();
C.addFailureResultFile(DepFile, &JA);
} else if (Output.getType() == types::TY_Dependencies) {
DepFile = Output.getFilename();
} else if (A->getOption().matches(options::OPT_M) ||
A->getOption().matches(options::OPT_MM)) {
DepFile = "-";
} else {
DepFile = getDependencyFileName(Args, Inputs);
C.addFailureResultFile(DepFile, &JA);
}
CmdArgs.push_back("-dependency-file");
CmdArgs.push_back(DepFile);
// Add a default target if one wasn't specified.
if (!Args.hasArg(options::OPT_MT) && !Args.hasArg(options::OPT_MQ)) {
const char *DepTarget;
// If user provided -o, that is the dependency target, except
// when we are only generating a dependency file.
Arg *OutputOpt = Args.getLastArg(options::OPT_o);
if (OutputOpt && Output.getType() != types::TY_Dependencies) {
DepTarget = OutputOpt->getValue();
} else {
// Otherwise derive from the base input.
//
// FIXME: This should use the computed output file location.
SmallString<128> P(Inputs[0].getBaseInput());
llvm::sys::path::replace_extension(P, "o");
DepTarget = Args.MakeArgString(llvm::sys::path::filename(P));
}
CmdArgs.push_back("-MT");
SmallString<128> Quoted;
QuoteTarget(DepTarget, Quoted);
CmdArgs.push_back(Args.MakeArgString(Quoted));
}
if (A->getOption().matches(options::OPT_M) ||
A->getOption().matches(options::OPT_MD))
CmdArgs.push_back("-sys-header-deps");
}
if (Args.hasArg(options::OPT_MG)) {
if (!A || A->getOption().matches(options::OPT_MD) ||
A->getOption().matches(options::OPT_MMD))
D.Diag(diag::err_drv_mg_requires_m_or_mm);
CmdArgs.push_back("-MG");
}
Args.AddLastArg(CmdArgs, options::OPT_MP);
// Convert all -MQ <target> args to -MT <quoted target>
for (arg_iterator it = Args.filtered_begin(options::OPT_MT,
options::OPT_MQ),
ie = Args.filtered_end(); it != ie; ++it) {
const Arg *A = *it;
A->claim();
if (A->getOption().matches(options::OPT_MQ)) {
CmdArgs.push_back("-MT");
SmallString<128> Quoted;
QuoteTarget(A->getValue(), Quoted);
CmdArgs.push_back(Args.MakeArgString(Quoted));
// -MT flag - no change
} else {
A->render(Args, CmdArgs);
}
}
// Add -i* options, and automatically translate to
// -include-pch/-include-pth for transparent PCH support. It's
// wonky, but we include looking for .gch so we can support seamless
// replacement into a build system already set up to be generating
// .gch files.
bool RenderedImplicitInclude = false;
for (arg_iterator it = Args.filtered_begin(options::OPT_clang_i_Group),
ie = Args.filtered_end(); it != ie; ++it) {
const Arg *A = it;
if (A->getOption().matches(options::OPT_include)) {
bool IsFirstImplicitInclude = !RenderedImplicitInclude;
RenderedImplicitInclude = true;
// Use PCH if the user requested it.
bool UsePCH = D.CCCUsePCH;
bool FoundPTH = false;
bool FoundPCH = false;
llvm::sys::Path P(A->getValue());
bool Exists;
if (UsePCH) {
P.appendSuffix("pch");
if (!llvm::sys::fs::exists(P.str(), Exists) && Exists)
FoundPCH = true;
else
P.eraseSuffix();
}
if (!FoundPCH) {
P.appendSuffix("pth");
if (!llvm::sys::fs::exists(P.str(), Exists) && Exists)
FoundPTH = true;
else
P.eraseSuffix();
}
if (!FoundPCH && !FoundPTH) {
P.appendSuffix("gch");
if (!llvm::sys::fs::exists(P.str(), Exists) && Exists) {
FoundPCH = UsePCH;
FoundPTH = !UsePCH;
}
else
P.eraseSuffix();
}
if (FoundPCH || FoundPTH) {
if (IsFirstImplicitInclude) {
A->claim();
if (UsePCH)
CmdArgs.push_back("-include-pch");
else
CmdArgs.push_back("-include-pth");
CmdArgs.push_back(Args.MakeArgString(P.str()));
continue;
} else {
// Ignore the PCH if not first on command line and emit warning.
D.Diag(diag::warn_drv_pch_not_first_include)
<< P.str() << A->getAsString(Args);
}
}
}
// Not translated, render as usual.
A->claim();
A->render(Args, CmdArgs);
}
Args.AddAllArgs(CmdArgs, options::OPT_D, options::OPT_U);
Args.AddAllArgs(CmdArgs, options::OPT_I_Group, options::OPT_F,
options::OPT_index_header_map);
// Add -Wp, and -Xassembler if using the preprocessor.
// FIXME: There is a very unfortunate problem here, some troubled
// souls abuse -Wp, to pass preprocessor options in gcc syntax. To
// really support that we would have to parse and then translate
// those options. :(
Args.AddAllArgValues(CmdArgs, options::OPT_Wp_COMMA,
options::OPT_Xpreprocessor);
// -I- is a deprecated GCC feature, reject it.
if (Arg *A = Args.getLastArg(options::OPT_I_))
D.Diag(diag::err_drv_I_dash_not_supported) << A->getAsString(Args);
// If we have a --sysroot, and don't have an explicit -isysroot flag, add an
// -isysroot to the CC1 invocation.
StringRef sysroot = C.getSysRoot();
if (sysroot != "") {
if (!Args.hasArg(options::OPT_isysroot)) {
CmdArgs.push_back("-isysroot");
CmdArgs.push_back(C.getArgs().MakeArgString(sysroot));
}
}
// Parse additional include paths from environment variables.
// FIXME: We should probably sink the logic for handling these from the
// frontend into the driver. It will allow deleting 4 otherwise unused flags.
// CPATH - included following the user specified includes (but prior to
// builtin and standard includes).
addDirectoryList(Args, CmdArgs, "-I", "CPATH");
// C_INCLUDE_PATH - system includes enabled when compiling C.
addDirectoryList(Args, CmdArgs, "-c-isystem", "C_INCLUDE_PATH");
// CPLUS_INCLUDE_PATH - system includes enabled when compiling C++.
addDirectoryList(Args, CmdArgs, "-cxx-isystem", "CPLUS_INCLUDE_PATH");
// OBJC_INCLUDE_PATH - system includes enabled when compiling ObjC.
addDirectoryList(Args, CmdArgs, "-objc-isystem", "OBJC_INCLUDE_PATH");
// OBJCPLUS_INCLUDE_PATH - system includes enabled when compiling ObjC++.
addDirectoryList(Args, CmdArgs, "-objcxx-isystem", "OBJCPLUS_INCLUDE_PATH");
// Add C++ include arguments, if needed.
if (types::isCXX(Inputs[0].getType()))
getToolChain().AddClangCXXStdlibIncludeArgs(Args, CmdArgs);
// Add system include arguments.
getToolChain().AddClangSystemIncludeArgs(Args, CmdArgs);
}
/// getLLVMArchSuffixForARM - Get the LLVM arch name to use for a particular
/// CPU.
//
// FIXME: This is redundant with -mcpu, why does LLVM use this.
// FIXME: tblgen this, or kill it!
static const char *getLLVMArchSuffixForARM(StringRef CPU) {
return llvm::StringSwitch<const char *>(CPU)
.Cases("arm7tdmi", "arm7tdmi-s", "arm710t", "v4t")
.Cases("arm720t", "arm9", "arm9tdmi", "v4t")
.Cases("arm920", "arm920t", "arm922t", "v4t")
.Cases("arm940t", "ep9312","v4t")
.Cases("arm10tdmi", "arm1020t", "v5")
.Cases("arm9e", "arm926ej-s", "arm946e-s", "v5e")
.Cases("arm966e-s", "arm968e-s", "arm10e", "v5e")
.Cases("arm1020e", "arm1022e", "xscale", "iwmmxt", "v5e")
.Cases("arm1136j-s", "arm1136jf-s", "arm1176jz-s", "v6")
.Cases("arm1176jzf-s", "mpcorenovfp", "mpcore", "v6")
.Cases("arm1156t2-s", "arm1156t2f-s", "v6t2")
.Cases("cortex-a5", "cortex-a7", "cortex-a8", "v7")
.Cases("cortex-a9", "cortex-a15", "v7")
.Case("cortex-r5", "v7r")
.Case("cortex-m0", "v6m")
.Case("cortex-m3", "v7m")
.Case("cortex-m4", "v7em")
.Case("cortex-a9-mp", "v7f")
.Case("swift", "v7s")
.Default("");
}
/// getARMTargetCPU - Get the (LLVM) name of the ARM cpu we are targeting.
//
// FIXME: tblgen this.
static std::string getARMTargetCPU(const ArgList &Args,
const llvm::Triple &Triple) {
// FIXME: Warn on inconsistent use of -mcpu and -march.
// If we have -mcpu=, use that.
if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) {
StringRef MCPU = A->getValue();
// Handle -mcpu=native.
if (MCPU == "native")
return llvm::sys::getHostCPUName();
else
return MCPU;
}
StringRef MArch;
if (Arg *A = Args.getLastArg(options::OPT_march_EQ)) {
// Otherwise, if we have -march= choose the base CPU for that arch.
MArch = A->getValue();
} else {
// Otherwise, use the Arch from the triple.
MArch = Triple.getArchName();
}
// Handle -march=native.
std::string NativeMArch;
if (MArch == "native") {
std::string CPU = llvm::sys::getHostCPUName();
if (CPU != "generic") {
// Translate the native cpu into the architecture. The switch below will
// then chose the minimum cpu for that arch.
NativeMArch = std::string("arm") + getLLVMArchSuffixForARM(CPU);
MArch = NativeMArch;
}
}
return llvm::StringSwitch<const char *>(MArch)
.Cases("armv2", "armv2a","arm2")
.Case("armv3", "arm6")
.Case("armv3m", "arm7m")
.Cases("armv4", "armv4t", "arm7tdmi")
.Cases("armv5", "armv5t", "arm10tdmi")
.Cases("armv5e", "armv5te", "arm1022e")
.Case("armv5tej", "arm926ej-s")
.Cases("armv6", "armv6k", "arm1136jf-s")
.Case("armv6j", "arm1136j-s")
.Cases("armv6z", "armv6zk", "arm1176jzf-s")
.Case("armv6t2", "arm1156t2-s")
.Cases("armv6m", "armv6-m", "cortex-m0")
.Cases("armv7", "armv7a", "armv7-a", "cortex-a8")
.Cases("armv7em", "armv7e-m", "cortex-m4")
.Cases("armv7f", "armv7-f", "cortex-a9-mp")
.Cases("armv7s", "armv7-s", "swift")
.Cases("armv7r", "armv7-r", "cortex-r4")
.Cases("armv7m", "armv7-m", "cortex-m3")
.Case("ep9312", "ep9312")
.Case("iwmmxt", "iwmmxt")
.Case("xscale", "xscale")
// If all else failed, return the most base CPU LLVM supports.
.Default("arm7tdmi");
}
// FIXME: Move to target hook.
static bool isSignedCharDefault(const llvm::Triple &Triple) {
switch (Triple.getArch()) {
default:
return true;
case llvm::Triple::aarch64:
case llvm::Triple::arm:
case llvm::Triple::ppc:
case llvm::Triple::ppc64:
if (Triple.isOSDarwin())
return true;
return false;
}
}
// Handle -mfpu=.
//
// FIXME: Centralize feature selection, defaulting shouldn't be also in the
// frontend target.
static void addFPUArgs(const Driver &D, const Arg *A, const ArgList &Args,
ArgStringList &CmdArgs) {
StringRef FPU = A->getValue();
// Set the target features based on the FPU.
if (FPU == "fpa" || FPU == "fpe2" || FPU == "fpe3" || FPU == "maverick") {
// Disable any default FPU support.
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("-vfp2");
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("-vfp3");
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("-neon");
} else if (FPU == "vfp3-d16" || FPU == "vfpv3-d16") {
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("+vfp3");
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("+d16");
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("-neon");
} else if (FPU == "vfp") {
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("+vfp2");
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("-neon");
} else if (FPU == "vfp3" || FPU == "vfpv3") {
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("+vfp3");
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("-neon");
} else if (FPU == "neon") {
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("+neon");
} else
D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args);
}
// Handle -mfpmath=.
static void addFPMathArgs(const Driver &D, const Arg *A, const ArgList &Args,
ArgStringList &CmdArgs, StringRef CPU) {
StringRef FPMath = A->getValue();
// Set the target features based on the FPMath.
if (FPMath == "neon") {
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("+neonfp");
if (CPU != "cortex-a5" && CPU != "cortex-a7" &&
CPU != "cortex-a8" && CPU != "cortex-a9" &&
CPU != "cortex-a9-mp" && CPU != "cortex-a15")
D.Diag(diag::err_drv_invalid_feature) << "-mfpmath=neon" << CPU;
} else if (FPMath == "vfp" || FPMath == "vfp2" || FPMath == "vfp3" ||
FPMath == "vfp4") {
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("-neonfp");
// FIXME: Add warnings when disabling a feature not present for a given CPU.
} else
D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args);
}
// Select the float ABI as determined by -msoft-float, -mhard-float, and
// -mfloat-abi=.
static StringRef getARMFloatABI(const Driver &D,
const ArgList &Args,
const llvm::Triple &Triple) {
StringRef FloatABI;
if (Arg *A = Args.getLastArg(options::OPT_msoft_float,
options::OPT_mhard_float,
options::OPT_mfloat_abi_EQ)) {
if (A->getOption().matches(options::OPT_msoft_float))
FloatABI = "soft";
else if (A->getOption().matches(options::OPT_mhard_float))
FloatABI = "hard";
else {
FloatABI = A->getValue();
if (FloatABI != "soft" && FloatABI != "softfp" && FloatABI != "hard") {
D.Diag(diag::err_drv_invalid_mfloat_abi)
<< A->getAsString(Args);
FloatABI = "soft";
}
}
}
// If unspecified, choose the default based on the platform.
if (FloatABI.empty()) {
switch (Triple.getOS()) {
case llvm::Triple::Darwin:
case llvm::Triple::MacOSX:
case llvm::Triple::IOS: {
// Darwin defaults to "softfp" for v6 and v7.
//
// FIXME: Factor out an ARM class so we can cache the arch somewhere.
std::string ArchName =
getLLVMArchSuffixForARM(getARMTargetCPU(Args, Triple));
if (StringRef(ArchName).startswith("v6") ||
StringRef(ArchName).startswith("v7"))
FloatABI = "softfp";
else
FloatABI = "soft";
break;
}
case llvm::Triple::FreeBSD:
// FreeBSD defaults to soft float
FloatABI = "soft";
break;
default:
switch(Triple.getEnvironment()) {
case llvm::Triple::GNUEABIHF:
FloatABI = "hard";
break;
case llvm::Triple::GNUEABI:
FloatABI = "softfp";
break;
case llvm::Triple::EABI:
// EABI is always AAPCS, and if it was not marked 'hard', it's softfp
FloatABI = "softfp";
break;
case llvm::Triple::Android: {
std::string ArchName =
getLLVMArchSuffixForARM(getARMTargetCPU(Args, Triple));
if (StringRef(ArchName).startswith("v7"))
FloatABI = "softfp";
else
FloatABI = "soft";
break;
}
default:
// Assume "soft", but warn the user we are guessing.
FloatABI = "soft";
D.Diag(diag::warn_drv_assuming_mfloat_abi_is) << "soft";
break;
}
}
}
return FloatABI;
}
void Clang::AddARMTargetArgs(const ArgList &Args,
ArgStringList &CmdArgs,
bool KernelOrKext) const {
const Driver &D = getToolChain().getDriver();
// Get the effective triple, which takes into account the deployment target.
std::string TripleStr = getToolChain().ComputeEffectiveClangTriple(Args);
llvm::Triple Triple(TripleStr);
std::string CPUName = getARMTargetCPU(Args, Triple);
// Select the ABI to use.
//
// FIXME: Support -meabi.
const char *ABIName = 0;
if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) {
ABIName = A->getValue();
} else if (Triple.isOSDarwin()) {
// The backend is hardwired to assume AAPCS for M-class processors, ensure
// the frontend matches that.
if (StringRef(CPUName).startswith("cortex-m")) {
ABIName = "aapcs";
} else {
ABIName = "apcs-gnu";
}
} else {
// Select the default based on the platform.
switch(Triple.getEnvironment()) {
case llvm::Triple::Android:
case llvm::Triple::GNUEABI:
case llvm::Triple::GNUEABIHF:
ABIName = "aapcs-linux";
break;
case llvm::Triple::EABI:
ABIName = "aapcs";
break;
default:
ABIName = "apcs-gnu";
}
}
CmdArgs.push_back("-target-abi");
CmdArgs.push_back(ABIName);
// Set the CPU based on -march= and -mcpu=.
CmdArgs.push_back("-target-cpu");
CmdArgs.push_back(Args.MakeArgString(CPUName));
// Determine floating point ABI from the options & target defaults.
StringRef FloatABI = getARMFloatABI(D, Args, Triple);
if (FloatABI == "soft") {
// Floating point operations and argument passing are soft.
//
// FIXME: This changes CPP defines, we need -target-soft-float.
CmdArgs.push_back("-msoft-float");
CmdArgs.push_back("-mfloat-abi");
CmdArgs.push_back("soft");
} else if (FloatABI == "softfp") {
// Floating point operations are hard, but argument passing is soft.
CmdArgs.push_back("-mfloat-abi");
CmdArgs.push_back("soft");
} else {
// Floating point operations and argument passing are hard.
assert(FloatABI == "hard" && "Invalid float abi!");
CmdArgs.push_back("-mfloat-abi");
CmdArgs.push_back("hard");
}
// Set appropriate target features for floating point mode.
//
// FIXME: Note, this is a hack, the LLVM backend doesn't actually use these
// yet (it uses the -mfloat-abi and -msoft-float options above), and it is
// stripped out by the ARM target.
// Use software floating point operations?
if (FloatABI == "soft") {
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("+soft-float");
}
// Use software floating point argument passing?
if (FloatABI != "hard") {
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("+soft-float-abi");
}
// Honor -mfpu=.
if (const Arg *A = Args.getLastArg(options::OPT_mfpu_EQ))
addFPUArgs(D, A, Args, CmdArgs);
// Honor -mfpmath=.
if (const Arg *A = Args.getLastArg(options::OPT_mfpmath_EQ))
addFPMathArgs(D, A, Args, CmdArgs, getARMTargetCPU(Args, Triple));
// Setting -msoft-float effectively disables NEON because of the GCC
// implementation, although the same isn't true of VFP or VFP3.
if (FloatABI == "soft") {
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("-neon");
}
// Kernel code has more strict alignment requirements.
if (KernelOrKext) {
if (Triple.getOS() != llvm::Triple::IOS || Triple.isOSVersionLT(6)) {
CmdArgs.push_back("-backend-option");
CmdArgs.push_back("-arm-long-calls");
}
CmdArgs.push_back("-backend-option");
CmdArgs.push_back("-arm-strict-align");
// The kext linker doesn't know how to deal with movw/movt.
CmdArgs.push_back("-backend-option");
CmdArgs.push_back("-arm-darwin-use-movt=0");
}
// Setting -mno-global-merge disables the codegen global merge pass. Setting
// -mglobal-merge has no effect as the pass is enabled by default.
if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge,
options::OPT_mno_global_merge)) {
if (A->getOption().matches(options::OPT_mno_global_merge))
CmdArgs.push_back("-mno-global-merge");
}
if (Args.hasArg(options::OPT_mno_implicit_float))
CmdArgs.push_back("-no-implicit-float");
}
// Translate MIPS CPU name alias option to CPU name.
static StringRef getMipsCPUFromAlias(const Arg &A) {
if (A.getOption().matches(options::OPT_mips32))
return "mips32";
if (A.getOption().matches(options::OPT_mips32r2))
return "mips32r2";
if (A.getOption().matches(options::OPT_mips64))
return "mips64";
if (A.getOption().matches(options::OPT_mips64r2))
return "mips64r2";
llvm_unreachable("Unexpected option");
return "";
}
// Get CPU and ABI names. They are not independent
// so we have to calculate them together.
static void getMipsCPUAndABI(const ArgList &Args,
const ToolChain &TC,
StringRef &CPUName,
StringRef &ABIName) {
const char *DefMips32CPU = "mips32";
const char *DefMips64CPU = "mips64";
if (Arg *A = Args.getLastArg(options::OPT_march_EQ,
options::OPT_mcpu_EQ,
options::OPT_mips_CPUs_Group)) {
if (A->getOption().matches(options::OPT_mips_CPUs_Group))
CPUName = getMipsCPUFromAlias(*A);
else
CPUName = A->getValue();
}
if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ))
ABIName = A->getValue();
// Setup default CPU and ABI names.
if (CPUName.empty() && ABIName.empty()) {
switch (TC.getTriple().getArch()) {
default:
llvm_unreachable("Unexpected triple arch name");
case llvm::Triple::mips:
case llvm::Triple::mipsel:
CPUName = DefMips32CPU;
break;
case llvm::Triple::mips64:
case llvm::Triple::mips64el:
CPUName = DefMips64CPU;
break;
}
}
if (!ABIName.empty()) {
// Deduce CPU name from ABI name.
CPUName = llvm::StringSwitch<const char *>(ABIName)
.Cases("32", "o32", "eabi", DefMips32CPU)
.Cases("n32", "n64", "64", DefMips64CPU)
.Default("");
}
else if (!CPUName.empty()) {
// Deduce ABI name from CPU name.
ABIName = llvm::StringSwitch<const char *>(CPUName)
.Cases("mips32", "mips32r2", "o32")
.Cases("mips64", "mips64r2", "n64")
.Default("");
}
// FIXME: Warn on inconsistent cpu and abi usage.
}
// Convert ABI name to the GNU tools acceptable variant.
static StringRef getGnuCompatibleMipsABIName(StringRef ABI) {
return llvm::StringSwitch<llvm::StringRef>(ABI)
.Case("o32", "32")
.Case("n64", "64")
.Default(ABI);
}
// Select the MIPS float ABI as determined by -msoft-float, -mhard-float,
// and -mfloat-abi=.
static StringRef getMipsFloatABI(const Driver &D, const ArgList &Args) {
// Select the float ABI as determined by -msoft-float, -mhard-float,
// and -mfloat-abi=.
StringRef FloatABI;
if (Arg *A = Args.getLastArg(options::OPT_msoft_float,
options::OPT_mhard_float,
options::OPT_mfloat_abi_EQ)) {
if (A->getOption().matches(options::OPT_msoft_float))
FloatABI = "soft";
else if (A->getOption().matches(options::OPT_mhard_float))
FloatABI = "hard";
else {
FloatABI = A->getValue();
if (FloatABI != "soft" && FloatABI != "single" && FloatABI != "hard") {
D.Diag(diag::err_drv_invalid_mfloat_abi) << A->getAsString(Args);
FloatABI = "hard";
}
}
}
// If unspecified, choose the default based on the platform.
if (FloatABI.empty()) {
// Assume "hard", because it's a default value used by gcc.
// When we start to recognize specific target MIPS processors,
// we will be able to select the default more correctly.
FloatABI = "hard";
}
return FloatABI;
}
static void AddTargetFeature(const ArgList &Args,
ArgStringList &CmdArgs,
OptSpecifier OnOpt,
OptSpecifier OffOpt,
StringRef FeatureName) {
if (Arg *A = Args.getLastArg(OnOpt, OffOpt)) {
CmdArgs.push_back("-target-feature");
if (A->getOption().matches(OnOpt))
CmdArgs.push_back(Args.MakeArgString("+" + FeatureName));
else
CmdArgs.push_back(Args.MakeArgString("-" + FeatureName));
}
}
void Clang::AddMIPSTargetArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
const Driver &D = getToolChain().getDriver();
StringRef CPUName;
StringRef ABIName;
getMipsCPUAndABI(Args, getToolChain(), CPUName, ABIName);
CmdArgs.push_back("-target-cpu");
CmdArgs.push_back(CPUName.data());
CmdArgs.push_back("-target-abi");
CmdArgs.push_back(ABIName.data());
StringRef FloatABI = getMipsFloatABI(D, Args);
bool IsMips16 = Args.getLastArg(options::OPT_mips16) != NULL;
if (FloatABI == "soft" || (FloatABI == "hard" && IsMips16)) {
// Floating point operations and argument passing are soft.
CmdArgs.push_back("-msoft-float");
CmdArgs.push_back("-mfloat-abi");
CmdArgs.push_back("soft");
// FIXME: Note, this is a hack. We need to pass the selected float
// mode to the MipsTargetInfoBase to define appropriate macros there.
// Now it is the only method.
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("+soft-float");
if (FloatABI == "hard" && IsMips16) {
CmdArgs.push_back("-mllvm");
CmdArgs.push_back("-mips16-hard-float");
}
}
else if (FloatABI == "single") {
// Restrict the use of hardware floating-point
// instructions to 32-bit operations.
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("+single-float");
}
else {
// Floating point operations and argument passing are hard.
assert(FloatABI == "hard" && "Invalid float abi!");
CmdArgs.push_back("-mfloat-abi");
CmdArgs.push_back("hard");
}
AddTargetFeature(Args, CmdArgs,
options::OPT_mips16, options::OPT_mno_mips16,
"mips16");
AddTargetFeature(Args, CmdArgs,
options::OPT_mdsp, options::OPT_mno_dsp,
"dsp");
AddTargetFeature(Args, CmdArgs,
options::OPT_mdspr2, options::OPT_mno_dspr2,
"dspr2");
if (Arg *A = Args.getLastArg(options::OPT_mxgot, options::OPT_mno_xgot)) {
if (A->getOption().matches(options::OPT_mxgot)) {
CmdArgs.push_back("-mllvm");
CmdArgs.push_back("-mxgot");
}
}
if (Arg *A = Args.getLastArg(options::OPT_G)) {
StringRef v = A->getValue();
CmdArgs.push_back("-mllvm");
CmdArgs.push_back(Args.MakeArgString("-mips-ssection-threshold=" + v));
A->claim();
}
}
/// getPPCTargetCPU - Get the (LLVM) name of the PowerPC cpu we are targeting.
static std::string getPPCTargetCPU(const ArgList &Args) {
if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) {
StringRef CPUName = A->getValue();
if (CPUName == "native") {
std::string CPU = llvm::sys::getHostCPUName();
if (!CPU.empty() && CPU != "generic")
return CPU;
else
return "";
}
return llvm::StringSwitch<const char *>(CPUName)
.Case("common", "generic")
.Case("440", "440")
.Case("440fp", "440")
.Case("450", "450")
.Case("601", "601")
.Case("602", "602")
.Case("603", "603")
.Case("603e", "603e")
.Case("603ev", "603ev")
.Case("604", "604")
.Case("604e", "604e")
.Case("620", "620")
.Case("630", "pwr3")
.Case("G3", "g3")
.Case("7400", "7400")
.Case("G4", "g4")
.Case("7450", "7450")
.Case("G4+", "g4+")
.Case("750", "750")
.Case("970", "970")
.Case("G5", "g5")
.Case("a2", "a2")
.Case("a2q", "a2q")
.Case("e500mc", "e500mc")
.Case("e5500", "e5500")
.Case("power3", "pwr3")
.Case("power4", "pwr4")
.Case("power5", "pwr5")
.Case("power5x", "pwr5x")
.Case("power6", "pwr6")
.Case("power6x", "pwr6x")
.Case("power7", "pwr7")
.Case("pwr3", "pwr3")
.Case("pwr4", "pwr4")
.Case("pwr5", "pwr5")
.Case("pwr5x", "pwr5x")
.Case("pwr6", "pwr6")
.Case("pwr6x", "pwr6x")
.Case("pwr7", "pwr7")
.Case("powerpc", "ppc")
.Case("powerpc64", "ppc64")
.Default("");
}
return "";
}
void Clang::AddPPCTargetArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
std::string TargetCPUName = getPPCTargetCPU(Args);
// LLVM may default to generating code for the native CPU,
// but, like gcc, we default to a more generic option for
// each architecture. (except on Darwin)
llvm::Triple Triple = getToolChain().getTriple();
if (TargetCPUName.empty() && !Triple.isOSDarwin()) {
if (Triple.getArch() == llvm::Triple::ppc64)
TargetCPUName = "ppc64";
else
TargetCPUName = "ppc";
}
if (!TargetCPUName.empty()) {
CmdArgs.push_back("-target-cpu");
CmdArgs.push_back(Args.MakeArgString(TargetCPUName.c_str()));
}
// Allow override of the Altivec feature.
if (Args.hasFlag(options::OPT_fno_altivec, options::OPT_faltivec, false)) {
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("-altivec");
}
if (Args.hasFlag(options::OPT_mno_qpx, options::OPT_mqpx, false)) {
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("-qpx");
}
}
void Clang::AddSparcTargetArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
const Driver &D = getToolChain().getDriver();
if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) {
CmdArgs.push_back("-target-cpu");
CmdArgs.push_back(A->getValue());
}
// Select the float ABI as determined by -msoft-float, -mhard-float, and
StringRef FloatABI;
if (Arg *A = Args.getLastArg(options::OPT_msoft_float,
options::OPT_mhard_float)) {
if (A->getOption().matches(options::OPT_msoft_float))
FloatABI = "soft";
else if (A->getOption().matches(options::OPT_mhard_float))
FloatABI = "hard";
}
// If unspecified, choose the default based on the platform.
if (FloatABI.empty()) {
switch (getToolChain().getTriple().getOS()) {
default:
// Assume "soft", but warn the user we are guessing.
FloatABI = "soft";
D.Diag(diag::warn_drv_assuming_mfloat_abi_is) << "soft";
break;
}
}
if (FloatABI == "soft") {
// Floating point operations and argument passing are soft.
//
// FIXME: This changes CPP defines, we need -target-soft-float.
CmdArgs.push_back("-msoft-float");
CmdArgs.push_back("-target-feature");
CmdArgs.push_back("+soft-float");
} else {
assert(FloatABI == "hard" && "Invalid float abi!");
CmdArgs.push_back("-mhard-float");
}
}
static const char *getX86TargetCPU(const ArgList &Args,
const llvm::Triple &Triple) {
if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) {
if (StringRef(A->getValue()) != "native")
return A->getValue();
// FIXME: Reject attempts to use -march=native unless the target matches
// the host.
//
// FIXME: We should also incorporate the detected target features for use
// with -native.
std::string CPU = llvm::sys::getHostCPUName();
if (!CPU.empty() && CPU != "generic")
return Args.MakeArgString(CPU);
}
// Select the default CPU if none was given (or detection failed).
if (Triple.getArch() != llvm::Triple::x86_64 &&
Triple.getArch() != llvm::Triple::x86)
return 0; // This routine is only handling x86 targets.
bool Is64Bit = Triple.getArch() == llvm::Triple::x86_64;
// FIXME: Need target hooks.
if (Triple.isOSDarwin())
return Is64Bit ? "core2" : "yonah";
// Everything else goes to x86-64 in 64-bit mode.
if (Is64Bit)
return "x86-64";
if (Triple.getOSName().startswith("haiku"))
return "i586";
if (Triple.getOSName().startswith("openbsd"))
return "i486";
if (Triple.getOSName().startswith("bitrig"))
return "i686";
if (Triple.getOSName().startswith("freebsd"))
return "i486";
if (Triple.getOSName().startswith("netbsd"))
return "i486";
// All x86 devices running Android have core2 as their common
// denominator. This makes a better choice than pentium4.
if (Triple.getEnvironment() == llvm::Triple::Android)
return "core2";
// Fallback to p4.
return "pentium4";
}
void Clang::AddX86TargetArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
if (!Args.hasFlag(options::OPT_mred_zone,
options::OPT_mno_red_zone,
true) ||
Args.hasArg(options::OPT_mkernel) ||
Args.hasArg(options::OPT_fapple_kext))
CmdArgs.push_back("-disable-red-zone");
// Default to avoid implicit floating-point for kernel/kext code, but allow
// that to be overridden with -mno-soft-float.
bool NoImplicitFloat = (Args.hasArg(options::OPT_mkernel) ||
Args.hasArg(options::OPT_fapple_kext));
if (Arg *A = Args.getLastArg(options::OPT_msoft_float,
options::OPT_mno_soft_float,
options::OPT_mno_implicit_float)) {
const Option &O = A->getOption();
NoImplicitFloat = (O.matches(options::OPT_mno_implicit_float) ||
O.matches(options::OPT_msoft_float));
}
if (NoImplicitFloat)
CmdArgs.push_back("-no-implicit-float");
if (const char *CPUName = getX86TargetCPU(Args, getToolChain().getTriple())) {
CmdArgs.push_back("-target-cpu");
CmdArgs.push_back(CPUName);
}
// The required algorithm here is slightly strange: the options are applied
// in order (so -mno-sse -msse2 disables SSE3), but any option that gets
// directly overridden later is ignored (so "-mno-sse -msse2 -mno-sse2 -msse"
// is equivalent to "-mno-sse2 -msse"). The -cc1 handling deals with the
// former correctly, but not the latter; handle directly-overridden
// attributes here.
llvm::StringMap<unsigned> PrevFeature;
std::vector<const char*> Features;
for (arg_iterator it = Args.filtered_begin(options::OPT_m_x86_Features_Group),
ie = Args.filtered_end(); it != ie; ++it) {
StringRef Name = (*it)->getOption().getName();
(*it)->claim();
// Skip over "-m".
assert(Name.startswith("m") && "Invalid feature name.");
Name = Name.substr(1);
bool IsNegative = Name.startswith("no-");
if (IsNegative)
Name = Name.substr(3);
unsigned& Prev = PrevFeature[Name];
if (Prev)
Features[Prev - 1] = 0;
Prev = Features.size() + 1;
Features.push_back(Args.MakeArgString((IsNegative ? "-" : "+") + Name));
}
for (unsigned i = 0; i < Features.size(); i++) {
if (Features[i]) {
CmdArgs.push_back("-target-feature");
CmdArgs.push_back(Features[i]);
}
}
}
static inline bool HasPICArg(const ArgList &Args) {
return Args.hasArg(options::OPT_fPIC)
|| Args.hasArg(options::OPT_fpic);
}
static Arg *GetLastSmallDataThresholdArg(const ArgList &Args) {
return Args.getLastArg(options::OPT_G,
options::OPT_G_EQ,
options::OPT_msmall_data_threshold_EQ);
}
static std::string GetHexagonSmallDataThresholdValue(const ArgList &Args) {
std::string value;
if (HasPICArg(Args))
value = "0";
else if (Arg *A = GetLastSmallDataThresholdArg(Args)) {
value = A->getValue();
A->claim();
}
return value;
}
void Clang::AddHexagonTargetArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
llvm::Triple Triple = getToolChain().getTriple();
CmdArgs.push_back("-target-cpu");
CmdArgs.push_back(Args.MakeArgString(
"hexagon"
+ toolchains::Hexagon_TC::GetTargetCPU(Args)));
CmdArgs.push_back("-fno-signed-char");
CmdArgs.push_back("-mqdsp6-compat");
CmdArgs.push_back("-Wreturn-type");
std::string SmallDataThreshold = GetHexagonSmallDataThresholdValue(Args);
if (!SmallDataThreshold.empty()) {
CmdArgs.push_back ("-mllvm");
CmdArgs.push_back(Args.MakeArgString(
"-hexagon-small-data-threshold=" + SmallDataThreshold));
}
if (!Args.hasArg(options::OPT_fno_short_enums))
CmdArgs.push_back("-fshort-enums");
if (Args.getLastArg(options::OPT_mieee_rnd_near)) {
CmdArgs.push_back ("-mllvm");
CmdArgs.push_back ("-enable-hexagon-ieee-rnd-near");
}
CmdArgs.push_back ("-mllvm");
CmdArgs.push_back ("-machine-sink-split=0");
}
static bool
shouldUseExceptionTablesForObjCExceptions(const ObjCRuntime &runtime,
const llvm::Triple &Triple) {
// We use the zero-cost exception tables for Objective-C if the non-fragile
// ABI is enabled or when compiling for x86_64 and ARM on Snow Leopard and
// later.
if (runtime.isNonFragile())
return true;
if (!Triple.isOSDarwin())
return false;
return (!Triple.isMacOSXVersionLT(10,5) &&
(Triple.getArch() == llvm::Triple::x86_64 ||
Triple.getArch() == llvm::Triple::arm));
}
/// addExceptionArgs - Adds exception related arguments to the driver command
/// arguments. There's a master flag, -fexceptions and also language specific
/// flags to enable/disable C++ and Objective-C exceptions.
/// This makes it possible to for example disable C++ exceptions but enable
/// Objective-C exceptions.
static void addExceptionArgs(const ArgList &Args, types::ID InputType,
const llvm::Triple &Triple,
bool KernelOrKext,
const ObjCRuntime &objcRuntime,
ArgStringList &CmdArgs) {
if (KernelOrKext) {
// -mkernel and -fapple-kext imply no exceptions, so claim exception related
// arguments now to avoid warnings about unused arguments.
Args.ClaimAllArgs(options::OPT_fexceptions);
Args.ClaimAllArgs(options::OPT_fno_exceptions);
Args.ClaimAllArgs(options::OPT_fobjc_exceptions);
Args.ClaimAllArgs(options::OPT_fno_objc_exceptions);
Args.ClaimAllArgs(options::OPT_fcxx_exceptions);
Args.ClaimAllArgs(options::OPT_fno_cxx_exceptions);
return;
}
// Exceptions are enabled by default.
bool ExceptionsEnabled = true;
// This keeps track of whether exceptions were explicitly turned on or off.
bool DidHaveExplicitExceptionFlag = false;
if (Arg *A = Args.getLastArg(options::OPT_fexceptions,
options::OPT_fno_exceptions)) {
if (A->getOption().matches(options::OPT_fexceptions))
ExceptionsEnabled = true;
else
ExceptionsEnabled = false;
DidHaveExplicitExceptionFlag = true;
}
bool ShouldUseExceptionTables = false;
// Exception tables and cleanups can be enabled with -fexceptions even if the
// language itself doesn't support exceptions.
if (ExceptionsEnabled && DidHaveExplicitExceptionFlag)
ShouldUseExceptionTables = true;
// Obj-C exceptions are enabled by default, regardless of -fexceptions. This
// is not necessarily sensible, but follows GCC.
if (types::isObjC(InputType) &&
Args.hasFlag(options::OPT_fobjc_exceptions,
options::OPT_fno_objc_exceptions,
true)) {
CmdArgs.push_back("-fobjc-exceptions");
ShouldUseExceptionTables |=
shouldUseExceptionTablesForObjCExceptions(objcRuntime, Triple);
}
if (types::isCXX(InputType)) {
bool CXXExceptionsEnabled = ExceptionsEnabled;
if (Arg *A = Args.getLastArg(options::OPT_fcxx_exceptions,
options::OPT_fno_cxx_exceptions,
options::OPT_fexceptions,
options::OPT_fno_exceptions)) {
if (A->getOption().matches(options::OPT_fcxx_exceptions))
CXXExceptionsEnabled = true;
else if (A->getOption().matches(options::OPT_fno_cxx_exceptions))
CXXExceptionsEnabled = false;
}
if (CXXExceptionsEnabled) {
CmdArgs.push_back("-fcxx-exceptions");
ShouldUseExceptionTables = true;
}
}
if (ShouldUseExceptionTables)
CmdArgs.push_back("-fexceptions");
}
static bool ShouldDisableCFI(const ArgList &Args,
const ToolChain &TC) {
bool Default = true;
if (TC.getTriple().isOSDarwin()) {
// The native darwin assembler doesn't support cfi directives, so
// we disable them if we think the .s file will be passed to it.
Default = TC.useIntegratedAs();
}
return !Args.hasFlag(options::OPT_fdwarf2_cfi_asm,
options::OPT_fno_dwarf2_cfi_asm,
Default);
}
static bool ShouldDisableDwarfDirectory(const ArgList &Args,
const ToolChain &TC) {
bool UseDwarfDirectory = Args.hasFlag(options::OPT_fdwarf_directory_asm,
options::OPT_fno_dwarf_directory_asm,
TC.useIntegratedAs());
return !UseDwarfDirectory;
}
/// \brief Check whether the given input tree contains any compilation actions.
static bool ContainsCompileAction(const Action *A) {
if (isa<CompileJobAction>(A))
return true;
for (Action::const_iterator it = A->begin(), ie = A->end(); it != ie; ++it)
if (ContainsCompileAction(*it))
return true;
return false;
}
/// \brief Check if -relax-all should be passed to the internal assembler.
/// This is done by default when compiling non-assembler source with -O0.
static bool UseRelaxAll(Compilation &C, const ArgList &Args) {
bool RelaxDefault = true;
if (Arg *A = Args.getLastArg(options::OPT_O_Group))
RelaxDefault = A->getOption().matches(options::OPT_O0);
if (RelaxDefault) {
RelaxDefault = false;
for (ActionList::const_iterator it = C.getActions().begin(),
ie = C.getActions().end(); it != ie; ++it) {
if (ContainsCompileAction(*it)) {
RelaxDefault = true;
break;
}
}
}
return Args.hasFlag(options::OPT_mrelax_all, options::OPT_mno_relax_all,
RelaxDefault);
}
SanitizerArgs::SanitizerArgs(const Driver &D, const ArgList &Args)
: Kind(0), BlacklistFile(""), MsanTrackOrigins(false),
AsanZeroBaseShadow(false) {
unsigned AllKinds = 0; // All kinds of sanitizers that were turned on
// at least once (possibly, disabled further).
unsigned AllRemovedKinds = 0; // All kinds of sanitizers that were explicitly
// removed at least once.
for (ArgList::const_iterator I = Args.begin(), E = Args.end(); I != E; ++I) {
unsigned Add, Remove;
if (!parse(D, Args, *I, Add, Remove, true))
continue;
(*I)->claim();
Kind |= Add;
Kind &= ~Remove;
AllKinds |= Add;
AllRemovedKinds |= Remove;
}
// Assume -fsanitize=address implies -fsanitize=init-order, if the latter is
// not disabled explicitly.
if ((Kind & Address) != 0 && (AllRemovedKinds & InitOrder) == 0) {
Kind |= InitOrder;
}
UbsanTrapOnError =
Args.hasArg(options::OPT_fcatch_undefined_behavior) ||
Args.hasFlag(options::OPT_fsanitize_undefined_trap_on_error,
options::OPT_fno_sanitize_undefined_trap_on_error, false);
if (Args.hasArg(options::OPT_fcatch_undefined_behavior) &&
!Args.hasFlag(options::OPT_fsanitize_undefined_trap_on_error,
options::OPT_fno_sanitize_undefined_trap_on_error, true)) {
D.Diag(diag::err_drv_argument_not_allowed_with)
<< "-fcatch-undefined-behavior"
<< "-fno-sanitize-undefined-trap-on-error";
}
// Warn about undefined sanitizer options that require runtime support.
if (UbsanTrapOnError && notAllowedWithTrap()) {
if (Args.hasArg(options::OPT_fcatch_undefined_behavior))
D.Diag(diag::err_drv_argument_not_allowed_with)
<< lastArgumentForKind(D, Args, NotAllowedWithTrap)
<< "-fcatch-undefined-behavior";
else if (Args.hasFlag(options::OPT_fsanitize_undefined_trap_on_error,
options::OPT_fno_sanitize_undefined_trap_on_error,
false))
D.Diag(diag::err_drv_argument_not_allowed_with)
<< lastArgumentForKind(D, Args, NotAllowedWithTrap)
<< "-fsanitize-undefined-trap-on-error";
}
// Only one runtime library can be used at once.
bool NeedsAsan = needsAsanRt();
bool NeedsTsan = needsTsanRt();
bool NeedsMsan = needsMsanRt();
if (NeedsAsan && NeedsTsan)
D.Diag(diag::err_drv_argument_not_allowed_with)
<< lastArgumentForKind(D, Args, NeedsAsanRt)
<< lastArgumentForKind(D, Args, NeedsTsanRt);
if (NeedsAsan && NeedsMsan)
D.Diag(diag::err_drv_argument_not_allowed_with)
<< lastArgumentForKind(D, Args, NeedsAsanRt)
<< lastArgumentForKind(D, Args, NeedsMsanRt);
if (NeedsTsan && NeedsMsan)
D.Diag(diag::err_drv_argument_not_allowed_with)
<< lastArgumentForKind(D, Args, NeedsTsanRt)
<< lastArgumentForKind(D, Args, NeedsMsanRt);
// If -fsanitize contains extra features of ASan, it should also
// explicitly contain -fsanitize=address (probably, turned off later in the
// command line).
if ((Kind & AddressFull) != 0 && (AllKinds & Address) == 0)
D.Diag(diag::warn_drv_unused_sanitizer)
<< lastArgumentForKind(D, Args, AddressFull)
<< "-fsanitize=address";
// Parse -f(no-)sanitize-blacklist options.
if (Arg *BLArg = Args.getLastArg(options::OPT_fsanitize_blacklist,
options::OPT_fno_sanitize_blacklist)) {
if (BLArg->getOption().matches(options::OPT_fsanitize_blacklist)) {
std::string BLPath = BLArg->getValue();
bool BLExists = false;
if (!llvm::sys::fs::exists(BLPath, BLExists) && BLExists)
BlacklistFile = BLPath;
else
D.Diag(diag::err_drv_no_such_file) << BLPath;
}
} else {
// If no -fsanitize-blacklist option is specified, try to look up for
// blacklist in the resource directory.
std::string BLPath;
bool BLExists = false;
if (getDefaultBlacklistForKind(D, Kind, BLPath) &&
!llvm::sys::fs::exists(BLPath, BLExists) && BLExists)
BlacklistFile = BLPath;
}
// Parse -f(no-)sanitize-memory-track-origins options.
if (NeedsMsan)
MsanTrackOrigins =
Args.hasFlag(options::OPT_fsanitize_memory_track_origins,
options::OPT_fno_sanitize_memory_track_origins,
/* Default */false);
// Parse -f(no-)sanitize-address-zero-base-shadow options.
if (NeedsAsan)
AsanZeroBaseShadow =
Args.hasFlag(options::OPT_fsanitize_address_zero_base_shadow,
options::OPT_fno_sanitize_address_zero_base_shadow,
/* Default */false);
}
static void addSanitizerRTLinkFlagsLinux(
const ToolChain &TC, const ArgList &Args, ArgStringList &CmdArgs,
const StringRef Sanitizer, bool BeforeLibStdCXX) {
// Sanitizer runtime is located in the Linux library directory and
// has name "libclang_rt.<Sanitizer>-<ArchName>.a".
SmallString<128> LibSanitizer(TC.getDriver().ResourceDir);
llvm::sys::path::append(
LibSanitizer, "lib", "linux",
(Twine("libclang_rt.") + Sanitizer + "-" + TC.getArchName() + ".a"));
// Sanitizer runtime may need to come before -lstdc++ (or -lc++, libstdc++.a,
// etc.) so that the linker picks custom versions of the global 'operator
// new' and 'operator delete' symbols. We take the extreme (but simple)
// strategy of inserting it at the front of the link command. It also
// needs to be forced to end up in the executable, so wrap it in
// whole-archive.
if (BeforeLibStdCXX) {
SmallVector<const char *, 3> PrefixArgs;
PrefixArgs.push_back("-whole-archive");
PrefixArgs.push_back(Args.MakeArgString(LibSanitizer));
PrefixArgs.push_back("-no-whole-archive");
CmdArgs.insert(CmdArgs.begin(), PrefixArgs.begin(), PrefixArgs.end());
} else {
CmdArgs.push_back(Args.MakeArgString(LibSanitizer));
}
CmdArgs.push_back("-lpthread");
CmdArgs.push_back("-ldl");
CmdArgs.push_back("-export-dynamic");
}
/// If AddressSanitizer is enabled, add appropriate linker flags (Linux).
/// This needs to be called before we add the C run-time (malloc, etc).
static void addAsanRTLinux(const ToolChain &TC, const ArgList &Args,
ArgStringList &CmdArgs) {
if(TC.getTriple().getEnvironment() == llvm::Triple::Android) {
if (!Args.hasArg(options::OPT_shared)) {
if (!Args.hasArg(options::OPT_pie))
TC.getDriver().Diag(diag::err_drv_asan_android_requires_pie);
}
SmallString<128> LibAsan(TC.getDriver().ResourceDir);
llvm::sys::path::append(LibAsan, "lib", "linux",
(Twine("libclang_rt.asan-") +
TC.getArchName() + "-android.so"));
CmdArgs.insert(CmdArgs.begin(), Args.MakeArgString(LibAsan));
} else {
if (!Args.hasArg(options::OPT_shared)) {
bool ZeroBaseShadow = Args.hasFlag(
options::OPT_fsanitize_address_zero_base_shadow,
options::OPT_fno_sanitize_address_zero_base_shadow, false);
if (ZeroBaseShadow && !Args.hasArg(options::OPT_pie)) {
TC.getDriver().Diag(diag::err_drv_argument_only_allowed_with) <<
"-fsanitize-address-zero-base-shadow" << "-pie";
}
addSanitizerRTLinkFlagsLinux(TC, Args, CmdArgs, "asan", true);
}
}
}
/// If ThreadSanitizer is enabled, add appropriate linker flags (Linux).
/// This needs to be called before we add the C run-time (malloc, etc).
static void addTsanRTLinux(const ToolChain &TC, const ArgList &Args,
ArgStringList &CmdArgs) {
if (!Args.hasArg(options::OPT_shared)) {
if (!Args.hasArg(options::OPT_pie))
TC.getDriver().Diag(diag::err_drv_argument_only_allowed_with) <<
"-fsanitize=thread" << "-pie";
addSanitizerRTLinkFlagsLinux(TC, Args, CmdArgs, "tsan", true);
}
}
/// If MemorySanitizer is enabled, add appropriate linker flags (Linux).
/// This needs to be called before we add the C run-time (malloc, etc).
static void addMsanRTLinux(const ToolChain &TC, const ArgList &Args,
ArgStringList &CmdArgs) {
if (!Args.hasArg(options::OPT_shared)) {
if (!Args.hasArg(options::OPT_pie))
TC.getDriver().Diag(diag::err_drv_argument_only_allowed_with) <<
"-fsanitize=memory" << "-pie";
addSanitizerRTLinkFlagsLinux(TC, Args, CmdArgs, "msan", true);
}
}
/// If UndefinedBehaviorSanitizer is enabled, add appropriate linker flags
/// (Linux).
static void addUbsanRTLinux(const ToolChain &TC, const ArgList &Args,
ArgStringList &CmdArgs) {
addSanitizerRTLinkFlagsLinux(TC, Args, CmdArgs, "ubsan", false);
}
static bool shouldUseFramePointer(const ArgList &Args,
const llvm::Triple &Triple) {
if (Arg *A = Args.getLastArg(options::OPT_fno_omit_frame_pointer,
options::OPT_fomit_frame_pointer))
return A->getOption().matches(options::OPT_fno_omit_frame_pointer);
// Don't use a frame pointer on linux x86 and x86_64 if optimizing.
if ((Triple.getArch() == llvm::Triple::x86_64 ||
Triple.getArch() == llvm::Triple::x86) &&
Triple.getOS() == llvm::Triple::Linux) {
if (Arg *A = Args.getLastArg(options::OPT_O_Group))
if (!A->getOption().matches(options::OPT_O0))
return false;
}
return true;
}
/// If the PWD environment variable is set, add a CC1 option to specify the
/// debug compilation directory.
static void addDebugCompDirArg(const ArgList &Args, ArgStringList &CmdArgs) {
if (const char *pwd = ::getenv("PWD")) {
// GCC also verifies that stat(pwd) and stat(".") have the same inode
// number. Not doing those because stats are slow, but we could.
if (llvm::sys::path::is_absolute(pwd)) {
std::string CompDir = pwd;
CmdArgs.push_back("-fdebug-compilation-dir");
CmdArgs.push_back(Args.MakeArgString(CompDir));
}
}
}
static const char *SplitDebugName(const ArgList &Args,
const InputInfoList &Inputs) {
Arg *FinalOutput = Args.getLastArg(options::OPT_o);
if (FinalOutput && Args.hasArg(options::OPT_c)) {
SmallString<128> T(FinalOutput->getValue());
llvm::sys::path::replace_extension(T, "dwo");
return Args.MakeArgString(T);
} else {
// Use the compilation dir.
SmallString<128> T(Args.getLastArgValue(options::OPT_fdebug_compilation_dir));
SmallString<128> F(llvm::sys::path::stem(Inputs[0].getBaseInput()));
llvm::sys::path::replace_extension(F, "dwo");
T += F;
return Args.MakeArgString(F);
}
}
static void SplitDebugInfo(const ToolChain &TC, Compilation &C,
const Tool &T, const JobAction &JA,
const ArgList &Args, const InputInfo &Output,
const char *OutFile) {
ArgStringList ExtractArgs;
ExtractArgs.push_back("--extract-dwo");
ArgStringList StripArgs;
StripArgs.push_back("--strip-dwo");
// Grabbing the output of the earlier compile step.
StripArgs.push_back(Output.getFilename());
ExtractArgs.push_back(Output.getFilename());
ExtractArgs.push_back(OutFile);
const char *Exec =
Args.MakeArgString(TC.GetProgramPath("objcopy"));
// First extract the dwo sections.
C.addCommand(new Command(JA, T, Exec, ExtractArgs));
// Then remove them from the original .o file.
C.addCommand(new Command(JA, T, Exec, StripArgs));
}
void Clang::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
bool KernelOrKext = Args.hasArg(options::OPT_mkernel,
options::OPT_fapple_kext);
const Driver &D = getToolChain().getDriver();
ArgStringList CmdArgs;
assert(Inputs.size() == 1 && "Unable to handle multiple inputs.");
// Invoke ourselves in -cc1 mode.
//
// FIXME: Implement custom jobs for internal actions.
CmdArgs.push_back("-cc1");
// Add the "effective" target triple.
CmdArgs.push_back("-triple");
std::string TripleStr = getToolChain().ComputeEffectiveClangTriple(Args);
CmdArgs.push_back(Args.MakeArgString(TripleStr));
// Select the appropriate action.
RewriteKind rewriteKind = RK_None;
if (isa<AnalyzeJobAction>(JA)) {
assert(JA.getType() == types::TY_Plist && "Invalid output type.");
CmdArgs.push_back("-analyze");
} else if (isa<MigrateJobAction>(JA)) {
CmdArgs.push_back("-migrate");
} else if (isa<PreprocessJobAction>(JA)) {
if (Output.getType() == types::TY_Dependencies)
CmdArgs.push_back("-Eonly");
else {
CmdArgs.push_back("-E");
if (Args.hasArg(options::OPT_rewrite_objc) &&
!Args.hasArg(options::OPT_g_Group))
CmdArgs.push_back("-P");
}
} else if (isa<AssembleJobAction>(JA)) {
CmdArgs.push_back("-emit-obj");
if (UseRelaxAll(C, Args))
CmdArgs.push_back("-mrelax-all");
// When using an integrated assembler, translate -Wa, and -Xassembler
// options.
for (arg_iterator it = Args.filtered_begin(options::OPT_Wa_COMMA,
options::OPT_Xassembler),
ie = Args.filtered_end(); it != ie; ++it) {
const Arg *A = *it;
A->claim();
for (unsigned i = 0, e = A->getNumValues(); i != e; ++i) {
StringRef Value = A->getValue(i);
if (Value == "-force_cpusubtype_ALL") {
// Do nothing, this is the default and we don't support anything else.
} else if (Value == "-L") {
CmdArgs.push_back("-msave-temp-labels");
} else if (Value == "--fatal-warnings") {
CmdArgs.push_back("-mllvm");
CmdArgs.push_back("-fatal-assembler-warnings");
} else if (Value == "--noexecstack") {
CmdArgs.push_back("-mnoexecstack");
} else {
D.Diag(diag::err_drv_unsupported_option_argument)
<< A->getOption().getName() << Value;
}
}
}
// Also ignore explicit -force_cpusubtype_ALL option.
(void) Args.hasArg(options::OPT_force__cpusubtype__ALL);
} else if (isa<PrecompileJobAction>(JA)) {
// Use PCH if the user requested it.
bool UsePCH = D.CCCUsePCH;
if (JA.getType() == types::TY_Nothing)
CmdArgs.push_back("-fsyntax-only");
else if (UsePCH)
CmdArgs.push_back("-emit-pch");
else
CmdArgs.push_back("-emit-pth");
} else {
assert(isa<CompileJobAction>(JA) && "Invalid action for clang tool.");
if (JA.getType() == types::TY_Nothing) {
CmdArgs.push_back("-fsyntax-only");
} else if (JA.getType() == types::TY_LLVM_IR ||
JA.getType() == types::TY_LTO_IR) {
CmdArgs.push_back("-emit-llvm");
} else if (JA.getType() == types::TY_LLVM_BC ||
JA.getType() == types::TY_LTO_BC) {
CmdArgs.push_back("-emit-llvm-bc");
} else if (JA.getType() == types::TY_PP_Asm) {
CmdArgs.push_back("-S");
} else if (JA.getType() == types::TY_AST) {
CmdArgs.push_back("-emit-pch");
} else if (JA.getType() == types::TY_RewrittenObjC) {
CmdArgs.push_back("-rewrite-objc");
rewriteKind = RK_NonFragile;
} else if (JA.getType() == types::TY_RewrittenLegacyObjC) {
CmdArgs.push_back("-rewrite-objc");
rewriteKind = RK_Fragile;
} else {
assert(JA.getType() == types::TY_PP_Asm &&
"Unexpected output type!");
}
}
// The make clang go fast button.
CmdArgs.push_back("-disable-free");
// Disable the verification pass in -asserts builds.
#ifdef NDEBUG
CmdArgs.push_back("-disable-llvm-verifier");
#endif
// Set the main file name, so that debug info works even with
// -save-temps.
CmdArgs.push_back("-main-file-name");
CmdArgs.push_back(getBaseInputName(Args, Inputs));
// Some flags which affect the language (via preprocessor
// defines).
if (Args.hasArg(options::OPT_static))
CmdArgs.push_back("-static-define");
if (isa<AnalyzeJobAction>(JA)) {
// Enable region store model by default.
CmdArgs.push_back("-analyzer-store=region");
// Treat blocks as analysis entry points.
CmdArgs.push_back("-analyzer-opt-analyze-nested-blocks");
CmdArgs.push_back("-analyzer-eagerly-assume");
// Add default argument set.
if (!Args.hasArg(options::OPT__analyzer_no_default_checks)) {
CmdArgs.push_back("-analyzer-checker=core");
if (getToolChain().getTriple().getOS() != llvm::Triple::Win32)
CmdArgs.push_back("-analyzer-checker=unix");
if (getToolChain().getTriple().getVendor() == llvm::Triple::Apple)
CmdArgs.push_back("-analyzer-checker=osx");
CmdArgs.push_back("-analyzer-checker=deadcode");
// Enable the following experimental checkers for testing.
CmdArgs.push_back("-analyzer-checker=security.insecureAPI.UncheckedReturn");
CmdArgs.push_back("-analyzer-checker=security.insecureAPI.getpw");
CmdArgs.push_back("-analyzer-checker=security.insecureAPI.gets");
CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mktemp");
CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mkstemp");
CmdArgs.push_back("-analyzer-checker=security.insecureAPI.vfork");
}
// Set the output format. The default is plist, for (lame) historical
// reasons.
CmdArgs.push_back("-analyzer-output");
if (Arg *A = Args.getLastArg(options::OPT__analyzer_output))
CmdArgs.push_back(A->getValue());
else
CmdArgs.push_back("plist");
// Disable the presentation of standard compiler warnings when
// using --analyze. We only want to show static analyzer diagnostics
// or frontend errors.
CmdArgs.push_back("-w");
// Add -Xanalyzer arguments when running as analyzer.
Args.AddAllArgValues(CmdArgs, options::OPT_Xanalyzer);
}
CheckCodeGenerationOptions(D, Args);
// For the PIC and PIE flag options, this logic is different from the legacy
// logic in very old versions of GCC, as that logic was just a bug no one had
// ever fixed. This logic is both more rational and consistent with GCC's new
// logic now that the bugs are fixed. The last argument relating to either
// PIC or PIE wins, and no other argument is used. If the last argument is
// any flavor of the '-fno-...' arguments, both PIC and PIE are disabled. Any
// PIE option implicitly enables PIC at the same level.
bool PIE = false;
bool PIC = getToolChain().isPICDefault();
bool IsPICLevelTwo = PIC;
if (Arg *A = Args.getLastArg(options::OPT_fPIC, options::OPT_fno_PIC,
options::OPT_fpic, options::OPT_fno_pic,
options::OPT_fPIE, options::OPT_fno_PIE,
options::OPT_fpie, options::OPT_fno_pie)) {
Option O = A->getOption();
if (O.matches(options::OPT_fPIC) || O.matches(options::OPT_fpic) ||
O.matches(options::OPT_fPIE) || O.matches(options::OPT_fpie)) {
PIE = O.matches(options::OPT_fPIE) || O.matches(options::OPT_fpie);
PIC = PIE || O.matches(options::OPT_fPIC) || O.matches(options::OPT_fpic);
IsPICLevelTwo = O.matches(options::OPT_fPIE) ||
O.matches(options::OPT_fPIC);
} else {
PIE = PIC = false;
}
}
// Check whether the tool chain trumps the PIC-ness decision. If the PIC-ness
// is forced, then neither PIC nor PIE flags will have no effect.
if (getToolChain().isPICDefaultForced()) {
PIE = false;
PIC = getToolChain().isPICDefault();
IsPICLevelTwo = PIC;
}
// Inroduce a Darwin-specific hack. If the default is PIC but the flags
// specified while enabling PIC enabled level 1 PIC, just force it back to
// level 2 PIC instead. This matches the behavior of Darwin GCC (based on my
// informal testing).
if (PIC && getToolChain().getTriple().isOSDarwin())
IsPICLevelTwo |= getToolChain().isPICDefault();
// Note that these flags are trump-cards. Regardless of the order w.r.t. the
// PIC or PIE options above, if these show up, PIC is disabled.
llvm::Triple Triple(TripleStr);
if (KernelOrKext &&
(Triple.getOS() != llvm::Triple::IOS ||
Triple.isOSVersionLT(6)))
PIC = PIE = false;
if (Args.hasArg(options::OPT_static))
PIC = PIE = false;
if (Arg *A = Args.getLastArg(options::OPT_mdynamic_no_pic)) {
// This is a very special mode. It trumps the other modes, almost no one
// uses it, and it isn't even valid on any OS but Darwin.
if (!getToolChain().getTriple().isOSDarwin())
D.Diag(diag::err_drv_unsupported_opt_for_target)
<< A->getSpelling() << getToolChain().getTriple().str();
// FIXME: Warn when this flag trumps some other PIC or PIE flag.
CmdArgs.push_back("-mrelocation-model");
CmdArgs.push_back("dynamic-no-pic");
// Only a forced PIC mode can cause the actual compile to have PIC defines
// etc., no flags are sufficient. This behavior was selected to closely
// match that of llvm-gcc and Apple GCC before that.
if (getToolChain().isPICDefault() && getToolChain().isPICDefaultForced()) {
CmdArgs.push_back("-pic-level");
CmdArgs.push_back("2");
}
} else {
// Currently, LLVM only knows about PIC vs. static; the PIE differences are
// handled in Clang's IRGen by the -pie-level flag.
CmdArgs.push_back("-mrelocation-model");
CmdArgs.push_back(PIC ? "pic" : "static");
if (PIC) {
CmdArgs.push_back("-pic-level");
CmdArgs.push_back(IsPICLevelTwo ? "2" : "1");
if (PIE) {
CmdArgs.push_back("-pie-level");
CmdArgs.push_back(IsPICLevelTwo ? "2" : "1");
}
}
}
if (!Args.hasFlag(options::OPT_fmerge_all_constants,
options::OPT_fno_merge_all_constants))
CmdArgs.push_back("-fno-merge-all-constants");
// LLVM Code Generator Options.
if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) {
CmdArgs.push_back("-mregparm");
CmdArgs.push_back(A->getValue());
}
if (Args.hasFlag(options::OPT_mrtd, options::OPT_mno_rtd, false))
CmdArgs.push_back("-mrtd");
if (shouldUseFramePointer(Args, getToolChain().getTriple()))
CmdArgs.push_back("-mdisable-fp-elim");
if (!Args.hasFlag(options::OPT_fzero_initialized_in_bss,
options::OPT_fno_zero_initialized_in_bss))
CmdArgs.push_back("-mno-zero-initialized-in-bss");
if (!Args.hasFlag(options::OPT_fstrict_aliasing,
options::OPT_fno_strict_aliasing,
getToolChain().IsStrictAliasingDefault()))
CmdArgs.push_back("-relaxed-aliasing");
if (Args.hasFlag(options::OPT_fstrict_enums, options::OPT_fno_strict_enums,
false))
CmdArgs.push_back("-fstrict-enums");
if (!Args.hasFlag(options::OPT_foptimize_sibling_calls,
options::OPT_fno_optimize_sibling_calls))
CmdArgs.push_back("-mdisable-tail-calls");
// Handle various floating point optimization flags, mapping them to the
// appropriate LLVM code generation flags. The pattern for all of these is to
// default off the codegen optimizations, and if any flag enables them and no
// flag disables them after the flag enabling them, enable the codegen
// optimization. This is complicated by several "umbrella" flags.
if (Arg *A = Args.getLastArg(options::OPT_ffast_math,
options::OPT_fno_fast_math,
options::OPT_ffinite_math_only,
options::OPT_fno_finite_math_only,
options::OPT_fhonor_infinities,
options::OPT_fno_honor_infinities))
if (A->getOption().getID() != options::OPT_fno_fast_math &&
A->getOption().getID() != options::OPT_fno_finite_math_only &&
A->getOption().getID() != options::OPT_fhonor_infinities)
CmdArgs.push_back("-menable-no-infs");
if (Arg *A = Args.getLastArg(options::OPT_ffast_math,
options::OPT_fno_fast_math,
options::OPT_ffinite_math_only,
options::OPT_fno_finite_math_only,
options::OPT_fhonor_nans,
options::OPT_fno_honor_nans))
if (A->getOption().getID() != options::OPT_fno_fast_math &&
A->getOption().getID() != options::OPT_fno_finite_math_only &&
A->getOption().getID() != options::OPT_fhonor_nans)
CmdArgs.push_back("-menable-no-nans");
// -fmath-errno is the default on some platforms, e.g. BSD-derived OSes.
bool MathErrno = getToolChain().IsMathErrnoDefault();
if (Arg *A = Args.getLastArg(options::OPT_ffast_math,
options::OPT_fno_fast_math,
options::OPT_fmath_errno,
options::OPT_fno_math_errno))
MathErrno = A->getOption().getID() == options::OPT_fmath_errno;
if (MathErrno)
CmdArgs.push_back("-fmath-errno");
// There are several flags which require disabling very specific
// optimizations. Any of these being disabled forces us to turn off the
// entire set of LLVM optimizations, so collect them through all the flag
// madness.
bool AssociativeMath = false;
if (Arg *A = Args.getLastArg(options::OPT_ffast_math,
options::OPT_fno_fast_math,
options::OPT_funsafe_math_optimizations,
options::OPT_fno_unsafe_math_optimizations,
options::OPT_fassociative_math,
options::OPT_fno_associative_math))
if (A->getOption().getID() != options::OPT_fno_fast_math &&
A->getOption().getID() != options::OPT_fno_unsafe_math_optimizations &&
A->getOption().getID() != options::OPT_fno_associative_math)
AssociativeMath = true;
bool ReciprocalMath = false;
if (Arg *A = Args.getLastArg(options::OPT_ffast_math,
options::OPT_fno_fast_math,
options::OPT_funsafe_math_optimizations,
options::OPT_fno_unsafe_math_optimizations,
options::OPT_freciprocal_math,
options::OPT_fno_reciprocal_math))
if (A->getOption().getID() != options::OPT_fno_fast_math &&
A->getOption().getID() != options::OPT_fno_unsafe_math_optimizations &&
A->getOption().getID() != options::OPT_fno_reciprocal_math)
ReciprocalMath = true;
bool SignedZeros = true;
if (Arg *A = Args.getLastArg(options::OPT_ffast_math,
options::OPT_fno_fast_math,
options::OPT_funsafe_math_optimizations,
options::OPT_fno_unsafe_math_optimizations,
options::OPT_fsigned_zeros,
options::OPT_fno_signed_zeros))
if (A->getOption().getID() != options::OPT_fno_fast_math &&
A->getOption().getID() != options::OPT_fno_unsafe_math_optimizations &&
A->getOption().getID() != options::OPT_fsigned_zeros)
SignedZeros = false;
bool TrappingMath = true;
if (Arg *A = Args.getLastArg(options::OPT_ffast_math,
options::OPT_fno_fast_math,
options::OPT_funsafe_math_optimizations,
options::OPT_fno_unsafe_math_optimizations,
options::OPT_ftrapping_math,
options::OPT_fno_trapping_math))
if (A->getOption().getID() != options::OPT_fno_fast_math &&
A->getOption().getID() != options::OPT_fno_unsafe_math_optimizations &&
A->getOption().getID() != options::OPT_ftrapping_math)
TrappingMath = false;
if (!MathErrno && AssociativeMath && ReciprocalMath && !SignedZeros &&
!TrappingMath)
CmdArgs.push_back("-menable-unsafe-fp-math");
// Validate and pass through -fp-contract option.
if (Arg *A = Args.getLastArg(options::OPT_ffast_math,
options::OPT_fno_fast_math,
options::OPT_ffp_contract)) {
if (A->getOption().getID() == options::OPT_ffp_contract) {
StringRef Val = A->getValue();
if (Val == "fast" || Val == "on" || Val == "off") {
CmdArgs.push_back(Args.MakeArgString("-ffp-contract=" + Val));
} else {
D.Diag(diag::err_drv_unsupported_option_argument)
<< A->getOption().getName() << Val;
}
} else if (A->getOption().getID() == options::OPT_ffast_math) {
// If fast-math is set then set the fp-contract mode to fast.
CmdArgs.push_back(Args.MakeArgString("-ffp-contract=fast"));
}
}
// We separately look for the '-ffast-math' and '-ffinite-math-only' flags,
// and if we find them, tell the frontend to provide the appropriate
// preprocessor macros. This is distinct from enabling any optimizations as
// these options induce language changes which must survive serialization
// and deserialization, etc.
if (Arg *A = Args.getLastArg(options::OPT_ffast_math, options::OPT_fno_fast_math))
if (A->getOption().matches(options::OPT_ffast_math))
CmdArgs.push_back("-ffast-math");
if (Arg *A = Args.getLastArg(options::OPT_ffinite_math_only, options::OPT_fno_fast_math))
if (A->getOption().matches(options::OPT_ffinite_math_only))
CmdArgs.push_back("-ffinite-math-only");
// Decide whether to use verbose asm. Verbose assembly is the default on
// toolchains which have the integrated assembler on by default.
bool IsVerboseAsmDefault = getToolChain().IsIntegratedAssemblerDefault();
if (Args.hasFlag(options::OPT_fverbose_asm, options::OPT_fno_verbose_asm,
IsVerboseAsmDefault) ||
Args.hasArg(options::OPT_dA))
CmdArgs.push_back("-masm-verbose");
if (Args.hasArg(options::OPT_fdebug_pass_structure)) {
CmdArgs.push_back("-mdebug-pass");
CmdArgs.push_back("Structure");
}
if (Args.hasArg(options::OPT_fdebug_pass_arguments)) {
CmdArgs.push_back("-mdebug-pass");
CmdArgs.push_back("Arguments");
}
// Enable -mconstructor-aliases except on darwin, where we have to
// work around a linker bug; see <rdar://problem/7651567>.
if (!getToolChain().getTriple().isOSDarwin())
CmdArgs.push_back("-mconstructor-aliases");
// Darwin's kernel doesn't support guard variables; just die if we
// try to use them.
if (KernelOrKext && getToolChain().getTriple().isOSDarwin())
CmdArgs.push_back("-fforbid-guard-variables");
if (Args.hasArg(options::OPT_mms_bitfields)) {
CmdArgs.push_back("-mms-bitfields");
}
// This is a coarse approximation of what llvm-gcc actually does, both
// -fasynchronous-unwind-tables and -fnon-call-exceptions interact in more
// complicated ways.
bool AsynchronousUnwindTables =
Args.hasFlag(options::OPT_fasynchronous_unwind_tables,
options::OPT_fno_asynchronous_unwind_tables,
getToolChain().IsUnwindTablesDefault() &&
!KernelOrKext);
if (Args.hasFlag(options::OPT_funwind_tables, options::OPT_fno_unwind_tables,
AsynchronousUnwindTables))
CmdArgs.push_back("-munwind-tables");
getToolChain().addClangTargetOptions(Args, CmdArgs);
if (Arg *A = Args.getLastArg(options::OPT_flimited_precision_EQ)) {
CmdArgs.push_back("-mlimit-float-precision");
CmdArgs.push_back(A->getValue());
}
// FIXME: Handle -mtune=.
(void) Args.hasArg(options::OPT_mtune_EQ);
if (Arg *A = Args.getLastArg(options::OPT_mcmodel_EQ)) {
CmdArgs.push_back("-mcode-model");
CmdArgs.push_back(A->getValue());
}
// Add target specific cpu and features flags.
switch(getToolChain().getTriple().getArch()) {
default:
break;
case llvm::Triple::arm:
case llvm::Triple::thumb:
AddARMTargetArgs(Args, CmdArgs, KernelOrKext);
break;
case llvm::Triple::mips:
case llvm::Triple::mipsel:
case llvm::Triple::mips64:
case llvm::Triple::mips64el:
AddMIPSTargetArgs(Args, CmdArgs);
break;
case llvm::Triple::ppc:
case llvm::Triple::ppc64:
AddPPCTargetArgs(Args, CmdArgs);
break;
case llvm::Triple::sparc:
AddSparcTargetArgs(Args, CmdArgs);
break;
case llvm::Triple::x86:
case llvm::Triple::x86_64:
AddX86TargetArgs(Args, CmdArgs);
break;
case llvm::Triple::hexagon:
AddHexagonTargetArgs(Args, CmdArgs);
break;
}
// Pass the linker version in use.
if (Arg *A = Args.getLastArg(options::OPT_mlinker_version_EQ)) {
CmdArgs.push_back("-target-linker-version");
CmdArgs.push_back(A->getValue());
}
// -mno-omit-leaf-frame-pointer is the default on Darwin.
if (Args.hasFlag(options::OPT_momit_leaf_frame_pointer,
options::OPT_mno_omit_leaf_frame_pointer,
!getToolChain().getTriple().isOSDarwin()))
CmdArgs.push_back("-momit-leaf-frame-pointer");
// Explicitly error on some things we know we don't support and can't just
// ignore.
types::ID InputType = Inputs[0].getType();
if (!Args.hasArg(options::OPT_fallow_unsupported)) {
Arg *Unsupported;
if (types::isCXX(InputType) &&
getToolChain().getTriple().isOSDarwin() &&
getToolChain().getTriple().getArch() == llvm::Triple::x86) {
if ((Unsupported = Args.getLastArg(options::OPT_fapple_kext)) ||
(Unsupported = Args.getLastArg(options::OPT_mkernel)))
D.Diag(diag::err_drv_clang_unsupported_opt_cxx_darwin_i386)
<< Unsupported->getOption().getName();
}
}
Args.AddAllArgs(CmdArgs, options::OPT_v);
Args.AddLastArg(CmdArgs, options::OPT_H);
if (D.CCPrintHeaders && !D.CCGenDiagnostics) {
CmdArgs.push_back("-header-include-file");
CmdArgs.push_back(D.CCPrintHeadersFilename ?
D.CCPrintHeadersFilename : "-");
}
Args.AddLastArg(CmdArgs, options::OPT_P);
Args.AddLastArg(CmdArgs, options::OPT_print_ivar_layout);
if (D.CCLogDiagnostics && !D.CCGenDiagnostics) {
CmdArgs.push_back("-diagnostic-log-file");
CmdArgs.push_back(D.CCLogDiagnosticsFilename ?
D.CCLogDiagnosticsFilename : "-");
}
// Use the last option from "-g" group. "-gline-tables-only"
// is preserved, all other debug options are substituted with "-g".
Args.ClaimAllArgs(options::OPT_g_Group);
if (Arg *A = Args.getLastArg(options::OPT_g_Group)) {
if (A->getOption().matches(options::OPT_gline_tables_only))
CmdArgs.push_back("-gline-tables-only");
else if (!A->getOption().matches(options::OPT_g0) &&
!A->getOption().matches(options::OPT_ggdb0))
CmdArgs.push_back("-g");
}
// We ignore flags -gstrict-dwarf and -grecord-gcc-switches for now.
Args.ClaimAllArgs(options::OPT_g_flags_Group);
if (Args.hasArg(options::OPT_gcolumn_info))
CmdArgs.push_back("-dwarf-column-info");
// -gsplit-dwarf should turn on -g and enable the backend dwarf
// splitting and extraction.
// FIXME: Currently only works on Linux.
if (getToolChain().getTriple().getOS() == llvm::Triple::Linux &&
Args.hasArg(options::OPT_gsplit_dwarf)) {
CmdArgs.push_back("-g");
CmdArgs.push_back("-backend-option");
CmdArgs.push_back("-split-dwarf=Enable");
}
Args.AddAllArgs(CmdArgs, options::OPT_ffunction_sections);
Args.AddAllArgs(CmdArgs, options::OPT_fdata_sections);
Args.AddAllArgs(CmdArgs, options::OPT_finstrument_functions);
if (Args.hasArg(options::OPT_ftest_coverage) ||
Args.hasArg(options::OPT_coverage))
CmdArgs.push_back("-femit-coverage-notes");
if (Args.hasArg(options::OPT_fprofile_arcs) ||
Args.hasArg(options::OPT_coverage))
CmdArgs.push_back("-femit-coverage-data");
if (C.getArgs().hasArg(options::OPT_c) ||
C.getArgs().hasArg(options::OPT_S)) {
if (Output.isFilename()) {
CmdArgs.push_back("-coverage-file");
SmallString<128> CoverageFilename(Output.getFilename());
if (llvm::sys::path::is_relative(CoverageFilename.str())) {
if (const char *pwd = ::getenv("PWD")) {
if (llvm::sys::path::is_absolute(pwd)) {
SmallString<128> Pwd(pwd);
llvm::sys::path::append(Pwd, CoverageFilename.str());
CoverageFilename.swap(Pwd);
}
}
}
CmdArgs.push_back(Args.MakeArgString(CoverageFilename));
}
}
// Pass options for controlling the default header search paths.
if (Args.hasArg(options::OPT_nostdinc)) {
CmdArgs.push_back("-nostdsysteminc");
CmdArgs.push_back("-nobuiltininc");
} else {
if (Args.hasArg(options::OPT_nostdlibinc))
CmdArgs.push_back("-nostdsysteminc");
Args.AddLastArg(CmdArgs, options::OPT_nostdincxx);
Args.AddLastArg(CmdArgs, options::OPT_nobuiltininc);
}
// Pass the path to compiler resource files.
CmdArgs.push_back("-resource-dir");
CmdArgs.push_back(D.ResourceDir.c_str());
Args.AddLastArg(CmdArgs, options::OPT_working_directory);
bool ARCMTEnabled = false;
if (!Args.hasArg(options::OPT_fno_objc_arc)) {
if (const Arg *A = Args.getLastArg(options::OPT_ccc_arcmt_check,
options::OPT_ccc_arcmt_modify,
options::OPT_ccc_arcmt_migrate)) {
ARCMTEnabled = true;
switch (A->getOption().getID()) {
default:
llvm_unreachable("missed a case");
case options::OPT_ccc_arcmt_check:
CmdArgs.push_back("-arcmt-check");
break;
case options::OPT_ccc_arcmt_modify:
CmdArgs.push_back("-arcmt-modify");
break;
case options::OPT_ccc_arcmt_migrate:
CmdArgs.push_back("-arcmt-migrate");
CmdArgs.push_back("-mt-migrate-directory");
CmdArgs.push_back(A->getValue());
Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_report_output);
Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_emit_arc_errors);
break;
}
}
}
if (const Arg *A = Args.getLastArg(options::OPT_ccc_objcmt_migrate)) {
if (ARCMTEnabled) {
D.Diag(diag::err_drv_argument_not_allowed_with)
<< A->getAsString(Args) << "-ccc-arcmt-migrate";
}
CmdArgs.push_back("-mt-migrate-directory");
CmdArgs.push_back(A->getValue());
if (!Args.hasArg(options::OPT_objcmt_migrate_literals,
options::OPT_objcmt_migrate_subscripting)) {
// None specified, means enable them all.
CmdArgs.push_back("-objcmt-migrate-literals");
CmdArgs.push_back("-objcmt-migrate-subscripting");
} else {
Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals);
Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting);
}
}
// Add preprocessing options like -I, -D, etc. if we are using the
// preprocessor.
//
// FIXME: Support -fpreprocessed
if (types::getPreprocessedType(InputType) != types::TY_INVALID)
AddPreprocessingOptions(C, JA, D, Args, CmdArgs, Output, Inputs);
// Don't warn about "clang -c -DPIC -fPIC test.i" because libtool.m4 assumes
// that "The compiler can only warn and ignore the option if not recognized".
// When building with ccache, it will pass -D options to clang even on
// preprocessed inputs and configure concludes that -fPIC is not supported.
Args.ClaimAllArgs(options::OPT_D);
// Manually translate -O to -O2 and -O4 to -O3; let clang reject
// others.
if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
if (A->getOption().matches(options::OPT_O4))
CmdArgs.push_back("-O3");
else if (A->getOption().matches(options::OPT_O) &&
A->getValue()[0] == '\0')
CmdArgs.push_back("-O2");
else
A->render(Args, CmdArgs);
}
// Don't warn about unused -flto. This can happen when we're preprocessing or
// precompiling.
Args.ClaimAllArgs(options::OPT_flto);
Args.AddAllArgs(CmdArgs, options::OPT_W_Group);
if (Args.hasFlag(options::OPT_pedantic, options::OPT_no_pedantic, false))
CmdArgs.push_back("-pedantic");
Args.AddLastArg(CmdArgs, options::OPT_pedantic_errors);
Args.AddLastArg(CmdArgs, options::OPT_w);
// Handle -{std, ansi, trigraphs} -- take the last of -{std, ansi}
// (-ansi is equivalent to -std=c89).
//
// If a std is supplied, only add -trigraphs if it follows the
// option.
if (Arg *Std = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi)) {
if (Std->getOption().matches(options::OPT_ansi))
if (types::isCXX(InputType))
CmdArgs.push_back("-std=c++98");
else
CmdArgs.push_back("-std=c89");
else
Std->render(Args, CmdArgs);
if (Arg *A = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi,
options::OPT_trigraphs))
if (A != Std)
A->render(Args, CmdArgs);
} else {
// Honor -std-default.
//
// FIXME: Clang doesn't correctly handle -std= when the input language
// doesn't match. For the time being just ignore this for C++ inputs;
// eventually we want to do all the standard defaulting here instead of
// splitting it between the driver and clang -cc1.
if (!types::isCXX(InputType))
Args.AddAllArgsTranslated(CmdArgs, options::OPT_std_default_EQ,
"-std=", /*Joined=*/true);
else if (getToolChain().getTriple().getOS() == llvm::Triple::Win32)
CmdArgs.push_back("-std=c++11");
Args.AddLastArg(CmdArgs, options::OPT_trigraphs);
}
// Map the bizarre '-Wwrite-strings' flag to a more sensible
// '-fconst-strings'; this better indicates its actual behavior.
if (Args.hasFlag(options::OPT_Wwrite_strings, options::OPT_Wno_write_strings,
false)) {
// For perfect compatibility with GCC, we do this even in the presence of
// '-w'. This flag names something other than a warning for GCC.
CmdArgs.push_back("-fconst-strings");
}
// GCC provides a macro definition '__DEPRECATED' when -Wdeprecated is active
// during C++ compilation, which it is by default. GCC keeps this define even
// in the presence of '-w', match this behavior bug-for-bug.
if (types::isCXX(InputType) &&
Args.hasFlag(options::OPT_Wdeprecated, options::OPT_Wno_deprecated,
true)) {
CmdArgs.push_back("-fdeprecated-macro");
}
// Translate GCC's misnamer '-fasm' arguments to '-fgnu-keywords'.
if (Arg *Asm = Args.getLastArg(options::OPT_fasm, options::OPT_fno_asm)) {
if (Asm->getOption().matches(options::OPT_fasm))
CmdArgs.push_back("-fgnu-keywords");
else
CmdArgs.push_back("-fno-gnu-keywords");
}
if (ShouldDisableCFI(Args, getToolChain()))
CmdArgs.push_back("-fno-dwarf2-cfi-asm");
if (ShouldDisableDwarfDirectory(Args, getToolChain()))
CmdArgs.push_back("-fno-dwarf-directory-asm");
// Add in -fdebug-compilation-dir if necessary.
addDebugCompDirArg(Args, CmdArgs);
if (Arg *A = Args.getLastArg(options::OPT_ftemplate_depth_,
options::OPT_ftemplate_depth_EQ)) {
CmdArgs.push_back("-ftemplate-depth");
CmdArgs.push_back(A->getValue());
}
if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_depth_EQ)) {
CmdArgs.push_back("-fconstexpr-depth");
CmdArgs.push_back(A->getValue());
}
if (Arg *A = Args.getLastArg(options::OPT_fbracket_depth_EQ)) {
CmdArgs.push_back("-fbracket-depth");
CmdArgs.push_back(A->getValue());
}
if (Arg *A = Args.getLastArg(options::OPT_Wlarge_by_value_copy_EQ,
options::OPT_Wlarge_by_value_copy_def)) {
if (A->getNumValues()) {
StringRef bytes = A->getValue();
CmdArgs.push_back(Args.MakeArgString("-Wlarge-by-value-copy=" + bytes));
} else
CmdArgs.push_back("-Wlarge-by-value-copy=64"); // default value
}
if (Args.hasArg(options::OPT_relocatable_pch))
CmdArgs.push_back("-relocatable-pch");
if (Arg *A = Args.getLastArg(options::OPT_fconstant_string_class_EQ)) {
CmdArgs.push_back("-fconstant-string-class");
CmdArgs.push_back(A->getValue());
}
if (Arg *A = Args.getLastArg(options::OPT_ftabstop_EQ)) {
CmdArgs.push_back("-ftabstop");
CmdArgs.push_back(A->getValue());
}
CmdArgs.push_back("-ferror-limit");
if (Arg *A = Args.getLastArg(options::OPT_ferror_limit_EQ))
CmdArgs.push_back(A->getValue());
else
CmdArgs.push_back("19");
if (Arg *A = Args.getLastArg(options::OPT_fmacro_backtrace_limit_EQ)) {
CmdArgs.push_back("-fmacro-backtrace-limit");
CmdArgs.push_back(A->getValue());
}
if (Arg *A = Args.getLastArg(options::OPT_ftemplate_backtrace_limit_EQ)) {
CmdArgs.push_back("-ftemplate-backtrace-limit");
CmdArgs.push_back(A->getValue());
}
if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_backtrace_limit_EQ)) {
CmdArgs.push_back("-fconstexpr-backtrace-limit");
CmdArgs.push_back(A->getValue());
}
// Pass -fmessage-length=.
CmdArgs.push_back("-fmessage-length");
if (Arg *A = Args.getLastArg(options::OPT_fmessage_length_EQ)) {
CmdArgs.push_back(A->getValue());
} else {
// If -fmessage-length=N was not specified, determine whether this is a
// terminal and, if so, implicitly define -fmessage-length appropriately.
unsigned N = llvm::sys::Process::StandardErrColumns();
CmdArgs.push_back(Args.MakeArgString(Twine(N)));
}
// -fvisibility= and -fvisibility-ms-compat are of a piece.
if (const Arg *A = Args.getLastArg(options::OPT_fvisibility_EQ,
options::OPT_fvisibility_ms_compat)) {
if (A->getOption().matches(options::OPT_fvisibility_EQ)) {
CmdArgs.push_back("-fvisibility");
CmdArgs.push_back(A->getValue());
} else {
assert(A->getOption().matches(options::OPT_fvisibility_ms_compat));
CmdArgs.push_back("-fvisibility");
CmdArgs.push_back("hidden");
CmdArgs.push_back("-ftype-visibility");
CmdArgs.push_back("default");
}
}
Args.AddLastArg(CmdArgs, options::OPT_fvisibility_inlines_hidden);
Args.AddLastArg(CmdArgs, options::OPT_ftlsmodel_EQ);
// -fhosted is default.
if (Args.hasFlag(options::OPT_ffreestanding, options::OPT_fhosted, false) ||
KernelOrKext)
CmdArgs.push_back("-ffreestanding");
// Forward -f (flag) options which we can pass directly.
Args.AddLastArg(CmdArgs, options::OPT_femit_all_decls);
Args.AddLastArg(CmdArgs, options::OPT_fheinous_gnu_extensions);
Args.AddLastArg(CmdArgs, options::OPT_flimit_debug_info);
Args.AddLastArg(CmdArgs, options::OPT_fno_limit_debug_info);
Args.AddLastArg(CmdArgs, options::OPT_fno_operator_names);
Args.AddLastArg(CmdArgs, options::OPT_faltivec);
Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_show_template_tree);
Args.AddLastArg(CmdArgs, options::OPT_fno_elide_type);
SanitizerArgs Sanitize(D, Args);
Sanitize.addArgs(Args, CmdArgs);
if (!Args.hasFlag(options::OPT_fsanitize_recover,
options::OPT_fno_sanitize_recover,
true))
CmdArgs.push_back("-fno-sanitize-recover");
if (Args.hasArg(options::OPT_fcatch_undefined_behavior) ||
Args.hasFlag(options::OPT_fsanitize_undefined_trap_on_error,
options::OPT_fno_sanitize_undefined_trap_on_error, false))
CmdArgs.push_back("-fsanitize-undefined-trap-on-error");
// Report an error for -faltivec on anything other than PowerPC.
if (const Arg *A = Args.getLastArg(options::OPT_faltivec))
if (!(getToolChain().getTriple().getArch() == llvm::Triple::ppc ||
getToolChain().getTriple().getArch() == llvm::Triple::ppc64))
D.Diag(diag::err_drv_argument_only_allowed_with)
<< A->getAsString(Args) << "ppc/ppc64";
if (getToolChain().SupportsProfiling())
Args.AddLastArg(CmdArgs, options::OPT_pg);
// -flax-vector-conversions is default.
if (!Args.hasFlag(options::OPT_flax_vector_conversions,
options::OPT_fno_lax_vector_conversions))
CmdArgs.push_back("-fno-lax-vector-conversions");
if (Args.getLastArg(options::OPT_fapple_kext))
CmdArgs.push_back("-fapple-kext");
if (Args.hasFlag(options::OPT_frewrite_includes,
options::OPT_fno_rewrite_includes, false))
CmdArgs.push_back("-frewrite-includes");
Args.AddLastArg(CmdArgs, options::OPT_fobjc_sender_dependent_dispatch);
Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_print_source_range_info);
Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_parseable_fixits);
Args.AddLastArg(CmdArgs, options::OPT_ftime_report);
Args.AddLastArg(CmdArgs, options::OPT_ftrapv);
if (Arg *A = Args.getLastArg(options::OPT_ftrapv_handler_EQ)) {
CmdArgs.push_back("-ftrapv-handler");
CmdArgs.push_back(A->getValue());
}
Args.AddLastArg(CmdArgs, options::OPT_ftrap_function_EQ);
// -fno-strict-overflow implies -fwrapv if it isn't disabled, but
// -fstrict-overflow won't turn off an explicitly enabled -fwrapv.
if (Arg *A = Args.getLastArg(options::OPT_fwrapv,
options::OPT_fno_wrapv)) {
if (A->getOption().matches(options::OPT_fwrapv))
CmdArgs.push_back("-fwrapv");
} else if (Arg *A = Args.getLastArg(options::OPT_fstrict_overflow,
options::OPT_fno_strict_overflow)) {
if (A->getOption().matches(options::OPT_fno_strict_overflow))
CmdArgs.push_back("-fwrapv");
}
Args.AddLastArg(CmdArgs, options::OPT_fwritable_strings);
Args.AddLastArg(CmdArgs, options::OPT_funroll_loops);
Args.AddLastArg(CmdArgs, options::OPT_pthread);
// -stack-protector=0 is default.
unsigned StackProtectorLevel = 0;
if (Arg *A = Args.getLastArg(options::OPT_fno_stack_protector,
options::OPT_fstack_protector_all,
options::OPT_fstack_protector)) {
if (A->getOption().matches(options::OPT_fstack_protector))
StackProtectorLevel = 1;
else if (A->getOption().matches(options::OPT_fstack_protector_all))
StackProtectorLevel = 2;
} else {
StackProtectorLevel =
getToolChain().GetDefaultStackProtectorLevel(KernelOrKext);
}
if (StackProtectorLevel) {
CmdArgs.push_back("-stack-protector");
CmdArgs.push_back(Args.MakeArgString(Twine(StackProtectorLevel)));
}
// --param ssp-buffer-size=
for (arg_iterator it = Args.filtered_begin(options::OPT__param),
ie = Args.filtered_end(); it != ie; ++it) {
StringRef Str((*it)->getValue());
if (Str.startswith("ssp-buffer-size=")) {
if (StackProtectorLevel) {
CmdArgs.push_back("-stack-protector-buffer-size");
// FIXME: Verify the argument is a valid integer.
CmdArgs.push_back(Args.MakeArgString(Str.drop_front(16)));
}
(*it)->claim();
}
}
// Translate -mstackrealign
if (Args.hasFlag(options::OPT_mstackrealign, options::OPT_mno_stackrealign,
false)) {
CmdArgs.push_back("-backend-option");
CmdArgs.push_back("-force-align-stack");
}
if (!Args.hasFlag(options::OPT_mno_stackrealign, options::OPT_mstackrealign,
false)) {
CmdArgs.push_back(Args.MakeArgString("-mstackrealign"));
}
if (Args.hasArg(options::OPT_mstack_alignment)) {
StringRef alignment = Args.getLastArgValue(options::OPT_mstack_alignment);
CmdArgs.push_back(Args.MakeArgString("-mstack-alignment=" + alignment));
}
// -mkernel implies -mstrict-align; don't add the redundant option.
if (Args.hasArg(options::OPT_mstrict_align) && !KernelOrKext) {
CmdArgs.push_back("-backend-option");
CmdArgs.push_back("-arm-strict-align");
}
// Forward -f options with positive and negative forms; we translate
// these by hand.
if (Args.hasArg(options::OPT_mkernel)) {
if (!Args.hasArg(options::OPT_fapple_kext) && types::isCXX(InputType))
CmdArgs.push_back("-fapple-kext");
if (!Args.hasArg(options::OPT_fbuiltin))
CmdArgs.push_back("-fno-builtin");
Args.ClaimAllArgs(options::OPT_fno_builtin);
}
// -fbuiltin is default.
else if (!Args.hasFlag(options::OPT_fbuiltin, options::OPT_fno_builtin))
CmdArgs.push_back("-fno-builtin");
if (!Args.hasFlag(options::OPT_fassume_sane_operator_new,
options::OPT_fno_assume_sane_operator_new))
CmdArgs.push_back("-fno-assume-sane-operator-new");
// -fblocks=0 is default.
if (Args.hasFlag(options::OPT_fblocks, options::OPT_fno_blocks,
getToolChain().IsBlocksDefault()) ||
(Args.hasArg(options::OPT_fgnu_runtime) &&
Args.hasArg(options::OPT_fobjc_nonfragile_abi) &&
!Args.hasArg(options::OPT_fno_blocks))) {
CmdArgs.push_back("-fblocks");
if (!Args.hasArg(options::OPT_fgnu_runtime) &&
!getToolChain().hasBlocksRuntime())
CmdArgs.push_back("-fblocks-runtime-optional");
}
// -fmodules enables modules (off by default). However, for C++/Objective-C++,
// users must also pass -fcxx-modules. The latter flag will disappear once the
// modules implementation is solid for C++/Objective-C++ programs as well.
bool HaveModules = false;
if (Args.hasFlag(options::OPT_fmodules, options::OPT_fno_modules, false)) {
bool AllowedInCXX = Args.hasFlag(options::OPT_fcxx_modules,
options::OPT_fno_cxx_modules,
false);
if (AllowedInCXX || !types::isCXX(InputType)) {
CmdArgs.push_back("-fmodules");
HaveModules = true;
}
}
// If a module path was provided, pass it along. Otherwise, use a temporary
// directory.
if (Arg *A = Args.getLastArg(options::OPT_fmodules_cache_path)) {
A->claim();
if (HaveModules) {
A->render(Args, CmdArgs);
}
} else if (HaveModules) {
SmallString<128> DefaultModuleCache;
llvm::sys::path::system_temp_directory(/*erasedOnReboot=*/false,
DefaultModuleCache);
llvm::sys::path::append(DefaultModuleCache, "clang-module-cache");
const char Arg[] = "-fmodules-cache-path=";
DefaultModuleCache.insert(DefaultModuleCache.begin(),
Arg, Arg + strlen(Arg));
CmdArgs.push_back(Args.MakeArgString(DefaultModuleCache));
}
// Pass through all -fmodules-ignore-macro arguments.
Args.AddAllArgs(CmdArgs, options::OPT_fmodules_ignore_macro);
// -fmodules-autolink (on by default when modules is enabled) automatically
// links against libraries for imported modules. This requires the
// integrated assembler.
if (HaveModules && getToolChain().useIntegratedAs() &&
Args.hasFlag(options::OPT_fmodules_autolink,
options::OPT_fno_modules_autolink,
true)) {
CmdArgs.push_back("-fmodules-autolink");
}
// -faccess-control is default.
if (Args.hasFlag(options::OPT_fno_access_control,
options::OPT_faccess_control,
false))
CmdArgs.push_back("-fno-access-control");
// -felide-constructors is the default.
if (Args.hasFlag(options::OPT_fno_elide_constructors,
options::OPT_felide_constructors,
false))
CmdArgs.push_back("-fno-elide-constructors");
// -frtti is default.
if (!Args.hasFlag(options::OPT_frtti, options::OPT_fno_rtti) ||
KernelOrKext) {
CmdArgs.push_back("-fno-rtti");
// -fno-rtti cannot usefully be combined with -fsanitize=vptr.
if (Sanitize.sanitizesVptr()) {
std::string NoRttiArg =
Args.getLastArg(options::OPT_mkernel,
options::OPT_fapple_kext,
options::OPT_fno_rtti)->getAsString(Args);
D.Diag(diag::err_drv_argument_not_allowed_with)
<< "-fsanitize=vptr" << NoRttiArg;
}
}
// -fshort-enums=0 is default for all architectures except Hexagon.
if (Args.hasFlag(options::OPT_fshort_enums,
options::OPT_fno_short_enums,
getToolChain().getTriple().getArch() ==
llvm::Triple::hexagon))
CmdArgs.push_back("-fshort-enums");
// -fsigned-char is default.
if (!Args.hasFlag(options::OPT_fsigned_char, options::OPT_funsigned_char,
isSignedCharDefault(getToolChain().getTriple())))
CmdArgs.push_back("-fno-signed-char");
// -fthreadsafe-static is default.
if (!Args.hasFlag(options::OPT_fthreadsafe_statics,
options::OPT_fno_threadsafe_statics))
CmdArgs.push_back("-fno-threadsafe-statics");
// -fuse-cxa-atexit is default.
if (!Args.hasFlag(options::OPT_fuse_cxa_atexit,
options::OPT_fno_use_cxa_atexit,
getToolChain().getTriple().getOS() != llvm::Triple::Cygwin &&
getToolChain().getTriple().getOS() != llvm::Triple::MinGW32 &&
getToolChain().getTriple().getArch() != llvm::Triple::hexagon) ||
KernelOrKext)
CmdArgs.push_back("-fno-use-cxa-atexit");
// -fms-extensions=0 is default.
if (Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions,
getToolChain().getTriple().getOS() == llvm::Triple::Win32))
CmdArgs.push_back("-fms-extensions");
// -fms-compatibility=0 is default.
if (Args.hasFlag(options::OPT_fms_compatibility,
options::OPT_fno_ms_compatibility,
(getToolChain().getTriple().getOS() == llvm::Triple::Win32 &&
Args.hasFlag(options::OPT_fms_extensions,
options::OPT_fno_ms_extensions,
true))))
CmdArgs.push_back("-fms-compatibility");
// -fmsc-version=1300 is default.
if (Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions,
getToolChain().getTriple().getOS() == llvm::Triple::Win32) ||
Args.hasArg(options::OPT_fmsc_version)) {
StringRef msc_ver = Args.getLastArgValue(options::OPT_fmsc_version);
if (msc_ver.empty())
CmdArgs.push_back("-fmsc-version=1300");
else
CmdArgs.push_back(Args.MakeArgString("-fmsc-version=" + msc_ver));
}
// -fno-borland-extensions is default.
if (Args.hasFlag(options::OPT_fborland_extensions,
options::OPT_fno_borland_extensions, false))
CmdArgs.push_back("-fborland-extensions");
// -fno-delayed-template-parsing is default, except for Windows where MSVC STL
// needs it.
if (Args.hasFlag(options::OPT_fdelayed_template_parsing,
options::OPT_fno_delayed_template_parsing,
getToolChain().getTriple().getOS() == llvm::Triple::Win32))
CmdArgs.push_back("-fdelayed-template-parsing");
// -fgnu-keywords default varies depending on language; only pass if
// specified.
if (Arg *A = Args.getLastArg(options::OPT_fgnu_keywords,
options::OPT_fno_gnu_keywords))
A->render(Args, CmdArgs);
if (Args.hasFlag(options::OPT_fgnu89_inline,
options::OPT_fno_gnu89_inline,
false))
CmdArgs.push_back("-fgnu89-inline");
if (Args.hasArg(options::OPT_fno_inline))
CmdArgs.push_back("-fno-inline");
if (Args.hasArg(options::OPT_fno_inline_functions))
CmdArgs.push_back("-fno-inline-functions");
ObjCRuntime objcRuntime = AddObjCRuntimeArgs(Args, CmdArgs, rewriteKind);
// -fobjc-dispatch-method is only relevant with the nonfragile-abi, and
// legacy is the default.
if (objcRuntime.isNonFragile()) {
if (!Args.hasFlag(options::OPT_fobjc_legacy_dispatch,
options::OPT_fno_objc_legacy_dispatch,
objcRuntime.isLegacyDispatchDefaultForArch(
getToolChain().getTriple().getArch()))) {
if (getToolChain().UseObjCMixedDispatch())
CmdArgs.push_back("-fobjc-dispatch-method=mixed");
else
CmdArgs.push_back("-fobjc-dispatch-method=non-legacy");
}
}
// -fobjc-default-synthesize-properties=1 is default. This only has an effect
// if the nonfragile objc abi is used.
if (getToolChain().IsObjCDefaultSynthPropertiesDefault()) {
CmdArgs.push_back("-fobjc-default-synthesize-properties");
}
// -fencode-extended-block-signature=1 is default.
if (getToolChain().IsEncodeExtendedBlockSignatureDefault()) {
CmdArgs.push_back("-fencode-extended-block-signature");
}
// Allow -fno-objc-arr to trump -fobjc-arr/-fobjc-arc.
// NOTE: This logic is duplicated in ToolChains.cpp.
bool ARC = isObjCAutoRefCount(Args);
if (ARC) {
getToolChain().CheckObjCARC();
CmdArgs.push_back("-fobjc-arc");
// FIXME: It seems like this entire block, and several around it should be
// wrapped in isObjC, but for now we just use it here as this is where it
// was being used previously.
if (types::isCXX(InputType) && types::isObjC(InputType)) {
if (getToolChain().GetCXXStdlibType(Args) == ToolChain::CST_Libcxx)
CmdArgs.push_back("-fobjc-arc-cxxlib=libc++");
else
CmdArgs.push_back("-fobjc-arc-cxxlib=libstdc++");
}
// Allow the user to enable full exceptions code emission.
// We define off for Objective-CC, on for Objective-C++.
if (Args.hasFlag(options::OPT_fobjc_arc_exceptions,
options::OPT_fno_objc_arc_exceptions,
/*default*/ types::isCXX(InputType)))
CmdArgs.push_back("-fobjc-arc-exceptions");
}
// -fobjc-infer-related-result-type is the default, except in the Objective-C
// rewriter.
if (rewriteKind != RK_None)
CmdArgs.push_back("-fno-objc-infer-related-result-type");
// Handle -fobjc-gc and -fobjc-gc-only. They are exclusive, and -fobjc-gc-only
// takes precedence.
const Arg *GCArg = Args.getLastArg(options::OPT_fobjc_gc_only);
if (!GCArg)
GCArg = Args.getLastArg(options::OPT_fobjc_gc);
if (GCArg) {
if (ARC) {
D.Diag(diag::err_drv_objc_gc_arr)
<< GCArg->getAsString(Args);
} else if (getToolChain().SupportsObjCGC()) {
GCArg->render(Args, CmdArgs);
} else {
// FIXME: We should move this to a hard error.
D.Diag(diag::warn_drv_objc_gc_unsupported)
<< GCArg->getAsString(Args);
}
}
// Add exception args.
addExceptionArgs(Args, InputType, getToolChain().getTriple(),
KernelOrKext, objcRuntime, CmdArgs);
if (getToolChain().UseSjLjExceptions())
CmdArgs.push_back("-fsjlj-exceptions");
// C++ "sane" operator new.
if (!Args.hasFlag(options::OPT_fassume_sane_operator_new,
options::OPT_fno_assume_sane_operator_new))
CmdArgs.push_back("-fno-assume-sane-operator-new");
// -fconstant-cfstrings is default, and may be subject to argument translation
// on Darwin.
if (!Args.hasFlag(options::OPT_fconstant_cfstrings,
options::OPT_fno_constant_cfstrings) ||
!Args.hasFlag(options::OPT_mconstant_cfstrings,
options::OPT_mno_constant_cfstrings))
CmdArgs.push_back("-fno-constant-cfstrings");
// -fshort-wchar default varies depending on platform; only
// pass if specified.
if (Arg *A = Args.getLastArg(options::OPT_fshort_wchar))
A->render(Args, CmdArgs);
// -fno-pascal-strings is default, only pass non-default. If the tool chain
// happened to translate to -mpascal-strings, we want to back translate here.
//
// FIXME: This is gross; that translation should be pulled from the
// tool chain.
if (Args.hasFlag(options::OPT_fpascal_strings,
options::OPT_fno_pascal_strings,
false) ||
Args.hasFlag(options::OPT_mpascal_strings,
options::OPT_mno_pascal_strings,
false))
CmdArgs.push_back("-fpascal-strings");
// Honor -fpack-struct= and -fpack-struct, if given. Note that
// -fno-pack-struct doesn't apply to -fpack-struct=.
if (Arg *A = Args.getLastArg(options::OPT_fpack_struct_EQ)) {
std::string PackStructStr = "-fpack-struct=";
PackStructStr += A->getValue();
CmdArgs.push_back(Args.MakeArgString(PackStructStr));
} else if (Args.hasFlag(options::OPT_fpack_struct,
options::OPT_fno_pack_struct, false)) {
CmdArgs.push_back("-fpack-struct=1");
}
if (KernelOrKext) {
if (!Args.hasArg(options::OPT_fcommon))
CmdArgs.push_back("-fno-common");
Args.ClaimAllArgs(options::OPT_fno_common);
}
// -fcommon is default, only pass non-default.
else if (!Args.hasFlag(options::OPT_fcommon, options::OPT_fno_common))
CmdArgs.push_back("-fno-common");
// -fsigned-bitfields is default, and clang doesn't yet support
// -funsigned-bitfields.
if (!Args.hasFlag(options::OPT_fsigned_bitfields,
options::OPT_funsigned_bitfields))
D.Diag(diag::warn_drv_clang_unsupported)
<< Args.getLastArg(options::OPT_funsigned_bitfields)->getAsString(Args);
// -fsigned-bitfields is default, and clang doesn't support -fno-for-scope.
if (!Args.hasFlag(options::OPT_ffor_scope,
options::OPT_fno_for_scope))
D.Diag(diag::err_drv_clang_unsupported)
<< Args.getLastArg(options::OPT_fno_for_scope)->getAsString(Args);
// -fcaret-diagnostics is default.
if (!Args.hasFlag(options::OPT_fcaret_diagnostics,
options::OPT_fno_caret_diagnostics, true))
CmdArgs.push_back("-fno-caret-diagnostics");
// -fdiagnostics-fixit-info is default, only pass non-default.
if (!Args.hasFlag(options::OPT_fdiagnostics_fixit_info,
options::OPT_fno_diagnostics_fixit_info))
CmdArgs.push_back("-fno-diagnostics-fixit-info");
// Enable -fdiagnostics-show-option by default.
if (Args.hasFlag(options::OPT_fdiagnostics_show_option,
options::OPT_fno_diagnostics_show_option))
CmdArgs.push_back("-fdiagnostics-show-option");
if (const Arg *A =
Args.getLastArg(options::OPT_fdiagnostics_show_category_EQ)) {
CmdArgs.push_back("-fdiagnostics-show-category");
CmdArgs.push_back(A->getValue());
}
if (const Arg *A =
Args.getLastArg(options::OPT_fdiagnostics_format_EQ)) {
CmdArgs.push_back("-fdiagnostics-format");
CmdArgs.push_back(A->getValue());
}
if (Arg *A = Args.getLastArg(
options::OPT_fdiagnostics_show_note_include_stack,
options::OPT_fno_diagnostics_show_note_include_stack)) {
if (A->getOption().matches(
options::OPT_fdiagnostics_show_note_include_stack))
CmdArgs.push_back("-fdiagnostics-show-note-include-stack");
else
CmdArgs.push_back("-fno-diagnostics-show-note-include-stack");
}
// Color diagnostics are the default, unless the terminal doesn't support
// them.
if (Args.hasFlag(options::OPT_fcolor_diagnostics,
options::OPT_fno_color_diagnostics,
llvm::sys::Process::StandardErrHasColors()))
CmdArgs.push_back("-fcolor-diagnostics");
if (!Args.hasFlag(options::OPT_fshow_source_location,
options::OPT_fno_show_source_location))
CmdArgs.push_back("-fno-show-source-location");
if (!Args.hasFlag(options::OPT_fshow_column,
options::OPT_fno_show_column,
true))
CmdArgs.push_back("-fno-show-column");
if (!Args.hasFlag(options::OPT_fspell_checking,
options::OPT_fno_spell_checking))
CmdArgs.push_back("-fno-spell-checking");
// -fno-asm-blocks is default.
if (Args.hasFlag(options::OPT_fasm_blocks, options::OPT_fno_asm_blocks,
false))
CmdArgs.push_back("-fasm-blocks");
// -fvectorize is default.
if (Args.hasFlag(options::OPT_fvectorize,
options::OPT_fno_vectorize, true)) {
CmdArgs.push_back("-backend-option");
CmdArgs.push_back("-vectorize-loops");
}
// -fno-slp-vectorize is default.
if (Args.hasFlag(options::OPT_fslp_vectorize,
options::OPT_fno_slp_vectorize, false)) {
CmdArgs.push_back("-backend-option");
CmdArgs.push_back("-vectorize");
}
if (Arg *A = Args.getLastArg(options::OPT_fshow_overloads_EQ))
A->render(Args, CmdArgs);
// -fdollars-in-identifiers default varies depending on platform and
// language; only pass if specified.
if (Arg *A = Args.getLastArg(options::OPT_fdollars_in_identifiers,
options::OPT_fno_dollars_in_identifiers)) {
if (A->getOption().matches(options::OPT_fdollars_in_identifiers))
CmdArgs.push_back("-fdollars-in-identifiers");
else
CmdArgs.push_back("-fno-dollars-in-identifiers");
}
// -funit-at-a-time is default, and we don't support -fno-unit-at-a-time for
// practical purposes.
if (Arg *A = Args.getLastArg(options::OPT_funit_at_a_time,
options::OPT_fno_unit_at_a_time)) {
if (A->getOption().matches(options::OPT_fno_unit_at_a_time))
D.Diag(diag::warn_drv_clang_unsupported) << A->getAsString(Args);
}
if (Args.hasFlag(options::OPT_fapple_pragma_pack,
options::OPT_fno_apple_pragma_pack, false))
CmdArgs.push_back("-fapple-pragma-pack");
// Default to -fno-builtin-str{cat,cpy} on Darwin for ARM.
//
// FIXME: This is disabled until clang -cc1 supports -fno-builtin-foo. PR4941.
#if 0
if (getToolChain().getTriple().isOSDarwin() &&
(getToolChain().getTriple().getArch() == llvm::Triple::arm ||
getToolChain().getTriple().getArch() == llvm::Triple::thumb)) {
if (!Args.hasArg(options::OPT_fbuiltin_strcat))
CmdArgs.push_back("-fno-builtin-strcat");
if (!Args.hasArg(options::OPT_fbuiltin_strcpy))
CmdArgs.push_back("-fno-builtin-strcpy");
}
#endif
// Only allow -traditional or -traditional-cpp outside in preprocessing modes.
if (Arg *A = Args.getLastArg(options::OPT_traditional,
options::OPT_traditional_cpp)) {
if (isa<PreprocessJobAction>(JA))
CmdArgs.push_back("-traditional-cpp");
else
D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args);
}
Args.AddLastArg(CmdArgs, options::OPT_dM);
Args.AddLastArg(CmdArgs, options::OPT_dD);
// Handle serialized diagnostics.
if (Arg *A = Args.getLastArg(options::OPT__serialize_diags)) {
CmdArgs.push_back("-serialize-diagnostic-file");
CmdArgs.push_back(Args.MakeArgString(A->getValue()));
}
if (Args.hasArg(options::OPT_fretain_comments_from_system_headers))
CmdArgs.push_back("-fretain-comments-from-system-headers");
// Forward -fcomment-block-commands to -cc1.
Args.AddAllArgs(CmdArgs, options::OPT_fcomment_block_commands);
// Forward -Xclang arguments to -cc1, and -mllvm arguments to the LLVM option
// parser.
Args.AddAllArgValues(CmdArgs, options::OPT_Xclang);
for (arg_iterator it = Args.filtered_begin(options::OPT_mllvm),
ie = Args.filtered_end(); it != ie; ++it) {
(*it)->claim();
// We translate this by hand to the -cc1 argument, since nightly test uses
// it and developers have been trained to spell it with -mllvm.
if (StringRef((*it)->getValue(0)) == "-disable-llvm-optzns")
CmdArgs.push_back("-disable-llvm-optzns");
else
(*it)->render(Args, CmdArgs);
}
if (Output.getType() == types::TY_Dependencies) {
// Handled with other dependency code.
} else if (Output.isFilename()) {
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
} else {
assert(Output.isNothing() && "Invalid output.");
}
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
const InputInfo &II = *it;
CmdArgs.push_back("-x");
if (Args.hasArg(options::OPT_rewrite_objc))
CmdArgs.push_back(types::getTypeName(types::TY_PP_ObjCXX));
else
CmdArgs.push_back(types::getTypeName(II.getType()));
if (II.isFilename())
CmdArgs.push_back(II.getFilename());
else
II.getInputArg().renderAsInput(Args, CmdArgs);
}
Args.AddAllArgs(CmdArgs, options::OPT_undef);
const char *Exec = getToolChain().getDriver().getClangProgramPath();
// Optionally embed the -cc1 level arguments into the debug info, for build
// analysis.
if (getToolChain().UseDwarfDebugFlags()) {
ArgStringList OriginalArgs;
for (ArgList::const_iterator it = Args.begin(),
ie = Args.end(); it != ie; ++it)
(*it)->render(Args, OriginalArgs);
SmallString<256> Flags;
Flags += Exec;
for (unsigned i = 0, e = OriginalArgs.size(); i != e; ++i) {
Flags += " ";
Flags += OriginalArgs[i];
}
CmdArgs.push_back("-dwarf-debug-flags");
CmdArgs.push_back(Args.MakeArgString(Flags.str()));
}
// Add the split debug info name to the command lines here so we
// can propagate it to the backend.
bool SplitDwarf = Args.hasArg(options::OPT_gsplit_dwarf) &&
(getToolChain().getTriple().getOS() == llvm::Triple::Linux) &&
(isa<AssembleJobAction>(JA) || isa<CompileJobAction>(JA));
const char *SplitDwarfOut;
if (SplitDwarf) {
CmdArgs.push_back("-split-dwarf-file");
SplitDwarfOut = SplitDebugName(Args, Inputs);
CmdArgs.push_back(SplitDwarfOut);
}
// Finally add the compile command to the compilation.
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
// Handle the debug info splitting at object creation time if we're
// creating an object.
// TODO: Currently only works on linux with newer objcopy.
if (SplitDwarf && !isa<CompileJobAction>(JA))
SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output, SplitDwarfOut);
if (Arg *A = Args.getLastArg(options::OPT_pg))
if (Args.hasArg(options::OPT_fomit_frame_pointer))
D.Diag(diag::err_drv_argument_not_allowed_with)
<< "-fomit-frame-pointer" << A->getAsString(Args);
// Claim some arguments which clang supports automatically.
// -fpch-preprocess is used with gcc to add a special marker in the output to
// include the PCH file. Clang's PTH solution is completely transparent, so we
// do not need to deal with it at all.
Args.ClaimAllArgs(options::OPT_fpch_preprocess);
// Claim some arguments which clang doesn't support, but we don't
// care to warn the user about.
Args.ClaimAllArgs(options::OPT_clang_ignored_f_Group);
Args.ClaimAllArgs(options::OPT_clang_ignored_m_Group);
// Disable warnings for clang -E -use-gold-plugin -emit-llvm foo.c
Args.ClaimAllArgs(options::OPT_use_gold_plugin);
Args.ClaimAllArgs(options::OPT_emit_llvm);
}
void ClangAs::AddARMTargetArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
const Driver &D = getToolChain().getDriver();
llvm::Triple Triple = getToolChain().getTriple();
// Set the CPU based on -march= and -mcpu=.
CmdArgs.push_back("-target-cpu");
CmdArgs.push_back(Args.MakeArgString(getARMTargetCPU(Args, Triple)));
// Honor -mfpu=.
if (const Arg *A = Args.getLastArg(options::OPT_mfpu_EQ))
addFPUArgs(D, A, Args, CmdArgs);
// Honor -mfpmath=.
if (const Arg *A = Args.getLastArg(options::OPT_mfpmath_EQ))
addFPMathArgs(D, A, Args, CmdArgs, getARMTargetCPU(Args, Triple));
}
void ClangAs::AddX86TargetArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
// Set the CPU based on -march=.
if (const char *CPUName = getX86TargetCPU(Args, getToolChain().getTriple())) {
CmdArgs.push_back("-target-cpu");
CmdArgs.push_back(CPUName);
}
}
/// Add options related to the Objective-C runtime/ABI.
///
/// Returns true if the runtime is non-fragile.
ObjCRuntime Clang::AddObjCRuntimeArgs(const ArgList &args,
ArgStringList &cmdArgs,
RewriteKind rewriteKind) const {
// Look for the controlling runtime option.
Arg *runtimeArg = args.getLastArg(options::OPT_fnext_runtime,
options::OPT_fgnu_runtime,
options::OPT_fobjc_runtime_EQ);
// Just forward -fobjc-runtime= to the frontend. This supercedes
// options about fragility.
if (runtimeArg &&
runtimeArg->getOption().matches(options::OPT_fobjc_runtime_EQ)) {
ObjCRuntime runtime;
StringRef value = runtimeArg->getValue();
if (runtime.tryParse(value)) {
getToolChain().getDriver().Diag(diag::err_drv_unknown_objc_runtime)
<< value;
}
runtimeArg->render(args, cmdArgs);
return runtime;
}
// Otherwise, we'll need the ABI "version". Version numbers are
// slightly confusing for historical reasons:
// 1 - Traditional "fragile" ABI
// 2 - Non-fragile ABI, version 1
// 3 - Non-fragile ABI, version 2
unsigned objcABIVersion = 1;
// If -fobjc-abi-version= is present, use that to set the version.
if (Arg *abiArg = args.getLastArg(options::OPT_fobjc_abi_version_EQ)) {
StringRef value = abiArg->getValue();
if (value == "1")
objcABIVersion = 1;
else if (value == "2")
objcABIVersion = 2;
else if (value == "3")
objcABIVersion = 3;
else
getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported)
<< value;
} else {
// Otherwise, determine if we are using the non-fragile ABI.
bool nonFragileABIIsDefault =
(rewriteKind == RK_NonFragile ||
(rewriteKind == RK_None &&
getToolChain().IsObjCNonFragileABIDefault()));
if (args.hasFlag(options::OPT_fobjc_nonfragile_abi,
options::OPT_fno_objc_nonfragile_abi,
nonFragileABIIsDefault)) {
// Determine the non-fragile ABI version to use.
#ifdef DISABLE_DEFAULT_NONFRAGILEABI_TWO
unsigned nonFragileABIVersion = 1;
#else
unsigned nonFragileABIVersion = 2;
#endif
if (Arg *abiArg = args.getLastArg(
options::OPT_fobjc_nonfragile_abi_version_EQ)) {
StringRef value = abiArg->getValue();
if (value == "1")
nonFragileABIVersion = 1;
else if (value == "2")
nonFragileABIVersion = 2;
else
getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported)
<< value;
}
objcABIVersion = 1 + nonFragileABIVersion;
} else {
objcABIVersion = 1;
}
}
// We don't actually care about the ABI version other than whether
// it's non-fragile.
bool isNonFragile = objcABIVersion != 1;
// If we have no runtime argument, ask the toolchain for its default runtime.
// However, the rewriter only really supports the Mac runtime, so assume that.
ObjCRuntime runtime;
if (!runtimeArg) {
switch (rewriteKind) {
case RK_None:
runtime = getToolChain().getDefaultObjCRuntime(isNonFragile);
break;
case RK_Fragile:
runtime = ObjCRuntime(ObjCRuntime::FragileMacOSX, VersionTuple());
break;
case RK_NonFragile:
runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple());
break;
}
// -fnext-runtime
} else if (runtimeArg->getOption().matches(options::OPT_fnext_runtime)) {
// On Darwin, make this use the default behavior for the toolchain.
if (getToolChain().getTriple().isOSDarwin()) {
runtime = getToolChain().getDefaultObjCRuntime(isNonFragile);
// Otherwise, build for a generic macosx port.
} else {
runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple());
}
// -fgnu-runtime
} else {
assert(runtimeArg->getOption().matches(options::OPT_fgnu_runtime));
// Legacy behaviour is to target the gnustep runtime if we are i
// non-fragile mode or the GCC runtime in fragile mode.
if (isNonFragile)
runtime = ObjCRuntime(ObjCRuntime::GNUstep, VersionTuple(1,6));
else
runtime = ObjCRuntime(ObjCRuntime::GCC, VersionTuple());
}
cmdArgs.push_back(args.MakeArgString(
"-fobjc-runtime=" + runtime.getAsString()));
return runtime;
}
void ClangAs::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
assert(Inputs.size() == 1 && "Unexpected number of inputs.");
const InputInfo &Input = Inputs[0];
// Don't warn about "clang -w -c foo.s"
Args.ClaimAllArgs(options::OPT_w);
// and "clang -emit-llvm -c foo.s"
Args.ClaimAllArgs(options::OPT_emit_llvm);
// and "clang -use-gold-plugin -c foo.s"
Args.ClaimAllArgs(options::OPT_use_gold_plugin);
// Invoke ourselves in -cc1as mode.
//
// FIXME: Implement custom jobs for internal actions.
CmdArgs.push_back("-cc1as");
// Add the "effective" target triple.
CmdArgs.push_back("-triple");
std::string TripleStr =
getToolChain().ComputeEffectiveClangTriple(Args, Input.getType());
CmdArgs.push_back(Args.MakeArgString(TripleStr));
// Set the output mode, we currently only expect to be used as a real
// assembler.
CmdArgs.push_back("-filetype");
CmdArgs.push_back("obj");
// Set the main file name, so that debug info works even with
// -save-temps or preprocessed assembly.
CmdArgs.push_back("-main-file-name");
CmdArgs.push_back(Clang::getBaseInputName(Args, Inputs));
if (UseRelaxAll(C, Args))
CmdArgs.push_back("-relax-all");
// Add target specific cpu and features flags.
switch(getToolChain().getTriple().getArch()) {
default:
break;
case llvm::Triple::arm:
case llvm::Triple::thumb:
AddARMTargetArgs(Args, CmdArgs);
break;
case llvm::Triple::x86:
case llvm::Triple::x86_64:
AddX86TargetArgs(Args, CmdArgs);
break;
}
// Ignore explicit -force_cpusubtype_ALL option.
(void) Args.hasArg(options::OPT_force__cpusubtype__ALL);
// Determine the original source input.
const Action *SourceAction = &JA;
while (SourceAction->getKind() != Action::InputClass) {
assert(!SourceAction->getInputs().empty() && "unexpected root action!");
SourceAction = SourceAction->getInputs()[0];
}
// Forward -g and handle debug info related flags, assuming we are dealing
// with an actual assembly file.
if (SourceAction->getType() == types::TY_Asm ||
SourceAction->getType() == types::TY_PP_Asm) {
Args.ClaimAllArgs(options::OPT_g_Group);
if (Arg *A = Args.getLastArg(options::OPT_g_Group))
if (!A->getOption().matches(options::OPT_g0))
CmdArgs.push_back("-g");
// Add the -fdebug-compilation-dir flag if needed.
addDebugCompDirArg(Args, CmdArgs);
// Set the AT_producer to the clang version when using the integrated
// assembler on assembly source files.
CmdArgs.push_back("-dwarf-debug-producer");
CmdArgs.push_back(Args.MakeArgString(getClangFullVersion()));
}
// Optionally embed the -cc1as level arguments into the debug info, for build
// analysis.
if (getToolChain().UseDwarfDebugFlags()) {
ArgStringList OriginalArgs;
for (ArgList::const_iterator it = Args.begin(),
ie = Args.end(); it != ie; ++it)
(*it)->render(Args, OriginalArgs);
SmallString<256> Flags;
const char *Exec = getToolChain().getDriver().getClangProgramPath();
Flags += Exec;
for (unsigned i = 0, e = OriginalArgs.size(); i != e; ++i) {
Flags += " ";
Flags += OriginalArgs[i];
}
CmdArgs.push_back("-dwarf-debug-flags");
CmdArgs.push_back(Args.MakeArgString(Flags.str()));
}
// FIXME: Add -static support, once we have it.
Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA,
options::OPT_Xassembler);
Args.AddAllArgs(CmdArgs, options::OPT_mllvm);
assert(Output.isFilename() && "Unexpected lipo output.");
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
assert(Input.isFilename() && "Invalid input.");
CmdArgs.push_back(Input.getFilename());
const char *Exec = getToolChain().getDriver().getClangProgramPath();
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void gcc::Common::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
const Driver &D = getToolChain().getDriver();
ArgStringList CmdArgs;
for (ArgList::const_iterator
it = Args.begin(), ie = Args.end(); it != ie; ++it) {
Arg *A = *it;
if (forwardToGCC(A->getOption())) {
// Don't forward any -g arguments to assembly steps.
if (isa<AssembleJobAction>(JA) &&
A->getOption().matches(options::OPT_g_Group))
continue;
// It is unfortunate that we have to claim here, as this means
// we will basically never report anything interesting for
// platforms using a generic gcc, even if we are just using gcc
// to get to the assembler.
A->claim();
A->render(Args, CmdArgs);
}
}
RenderExtraToolArgs(JA, CmdArgs);
// If using a driver driver, force the arch.
llvm::Triple::ArchType Arch = getToolChain().getArch();
if (getToolChain().getTriple().isOSDarwin()) {
CmdArgs.push_back("-arch");
// FIXME: Remove these special cases.
if (Arch == llvm::Triple::ppc)
CmdArgs.push_back("ppc");
else if (Arch == llvm::Triple::ppc64)
CmdArgs.push_back("ppc64");
else
CmdArgs.push_back(Args.MakeArgString(getToolChain().getArchName()));
}
// Try to force gcc to match the tool chain we want, if we recognize
// the arch.
//
// FIXME: The triple class should directly provide the information we want
// here.
if (Arch == llvm::Triple::x86 || Arch == llvm::Triple::ppc)
CmdArgs.push_back("-m32");
else if (Arch == llvm::Triple::x86_64 || Arch == llvm::Triple::x86_64)
CmdArgs.push_back("-m64");
if (Output.isFilename()) {
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
} else {
assert(Output.isNothing() && "Unexpected output");
CmdArgs.push_back("-fsyntax-only");
}
Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA,
options::OPT_Xassembler);
// Only pass -x if gcc will understand it; otherwise hope gcc
// understands the suffix correctly. The main use case this would go
// wrong in is for linker inputs if they happened to have an odd
// suffix; really the only way to get this to happen is a command
// like '-x foobar a.c' which will treat a.c like a linker input.
//
// FIXME: For the linker case specifically, can we safely convert
// inputs into '-Wl,' options?
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
const InputInfo &II = *it;
// Don't try to pass LLVM or AST inputs to a generic gcc.
if (II.getType() == types::TY_LLVM_IR || II.getType() == types::TY_LTO_IR ||
II.getType() == types::TY_LLVM_BC || II.getType() == types::TY_LTO_BC)
D.Diag(diag::err_drv_no_linker_llvm_support)
<< getToolChain().getTripleString();
else if (II.getType() == types::TY_AST)
D.Diag(diag::err_drv_no_ast_support)
<< getToolChain().getTripleString();
if (types::canTypeBeUserSpecified(II.getType())) {
CmdArgs.push_back("-x");
CmdArgs.push_back(types::getTypeName(II.getType()));
}
if (II.isFilename())
CmdArgs.push_back(II.getFilename());
else {
const Arg &A = II.getInputArg();
// Reverse translate some rewritten options.
if (A.getOption().matches(options::OPT_Z_reserved_lib_stdcxx)) {
CmdArgs.push_back("-lstdc++");
continue;
}
// Don't render as input, we need gcc to do the translations.
A.render(Args, CmdArgs);
}
}
const std::string customGCCName = D.getCCCGenericGCCName();
const char *GCCName;
if (!customGCCName.empty())
GCCName = customGCCName.c_str();
else if (D.CCCIsCXX) {
GCCName = "g++";
} else
GCCName = "gcc";
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath(GCCName));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void gcc::Preprocess::RenderExtraToolArgs(const JobAction &JA,
ArgStringList &CmdArgs) const {
CmdArgs.push_back("-E");
}
void gcc::Precompile::RenderExtraToolArgs(const JobAction &JA,
ArgStringList &CmdArgs) const {
// The type is good enough.
}
void gcc::Compile::RenderExtraToolArgs(const JobAction &JA,
ArgStringList &CmdArgs) const {
const Driver &D = getToolChain().getDriver();
// If -flto, etc. are present then make sure not to force assembly output.
if (JA.getType() == types::TY_LLVM_IR || JA.getType() == types::TY_LTO_IR ||
JA.getType() == types::TY_LLVM_BC || JA.getType() == types::TY_LTO_BC)
CmdArgs.push_back("-c");
else {
if (JA.getType() != types::TY_PP_Asm)
D.Diag(diag::err_drv_invalid_gcc_output_type)
<< getTypeName(JA.getType());
CmdArgs.push_back("-S");
}
}
void gcc::Assemble::RenderExtraToolArgs(const JobAction &JA,
ArgStringList &CmdArgs) const {
CmdArgs.push_back("-c");
}
void gcc::Link::RenderExtraToolArgs(const JobAction &JA,
ArgStringList &CmdArgs) const {
// The types are (hopefully) good enough.
}
// Hexagon tools start.
void hexagon::Assemble::RenderExtraToolArgs(const JobAction &JA,
ArgStringList &CmdArgs) const {
}
void hexagon::Assemble::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
const Driver &D = getToolChain().getDriver();
ArgStringList CmdArgs;
std::string MarchString = "-march=";
MarchString += toolchains::Hexagon_TC::GetTargetCPU(Args);
CmdArgs.push_back(Args.MakeArgString(MarchString));
RenderExtraToolArgs(JA, CmdArgs);
if (Output.isFilename()) {
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
} else {
assert(Output.isNothing() && "Unexpected output");
CmdArgs.push_back("-fsyntax-only");
}
std::string SmallDataThreshold = GetHexagonSmallDataThresholdValue(Args);
if (!SmallDataThreshold.empty())
CmdArgs.push_back(
Args.MakeArgString(std::string("-G") + SmallDataThreshold));
Args.AddAllArgs(CmdArgs, options::OPT_g_Group);
Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA,
options::OPT_Xassembler);
// Only pass -x if gcc will understand it; otherwise hope gcc
// understands the suffix correctly. The main use case this would go
// wrong in is for linker inputs if they happened to have an odd
// suffix; really the only way to get this to happen is a command
// like '-x foobar a.c' which will treat a.c like a linker input.
//
// FIXME: For the linker case specifically, can we safely convert
// inputs into '-Wl,' options?
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
const InputInfo &II = *it;
// Don't try to pass LLVM or AST inputs to a generic gcc.
if (II.getType() == types::TY_LLVM_IR || II.getType() == types::TY_LTO_IR ||
II.getType() == types::TY_LLVM_BC || II.getType() == types::TY_LTO_BC)
D.Diag(clang::diag::err_drv_no_linker_llvm_support)
<< getToolChain().getTripleString();
else if (II.getType() == types::TY_AST)
D.Diag(clang::diag::err_drv_no_ast_support)
<< getToolChain().getTripleString();
if (II.isFilename())
CmdArgs.push_back(II.getFilename());
else
// Don't render as input, we need gcc to do the translations. FIXME: Pranav: What is this ?
II.getInputArg().render(Args, CmdArgs);
}
const char *GCCName = "hexagon-as";
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath(GCCName));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void hexagon::Link::RenderExtraToolArgs(const JobAction &JA,
ArgStringList &CmdArgs) const {
// The types are (hopefully) good enough.
}
void hexagon::Link::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
const toolchains::Hexagon_TC& ToolChain =
static_cast<const toolchains::Hexagon_TC&>(getToolChain());
const Driver &D = ToolChain.getDriver();
ArgStringList CmdArgs;
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
bool hasStaticArg = Args.hasArg(options::OPT_static);
bool buildingLib = Args.hasArg(options::OPT_shared);
bool buildPIE = Args.hasArg(options::OPT_pie);
bool incStdLib = !Args.hasArg(options::OPT_nostdlib);
bool incStartFiles = !Args.hasArg(options::OPT_nostartfiles);
bool incDefLibs = !Args.hasArg(options::OPT_nodefaultlibs);
bool useShared = buildingLib && !hasStaticArg;
//----------------------------------------------------------------------------
// Silence warnings for various options
//----------------------------------------------------------------------------
Args.ClaimAllArgs(options::OPT_g_Group);
Args.ClaimAllArgs(options::OPT_emit_llvm);
Args.ClaimAllArgs(options::OPT_w); // Other warning options are already
// handled somewhere else.
Args.ClaimAllArgs(options::OPT_static_libgcc);
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
for (std::vector<std::string>::const_iterator i = ToolChain.ExtraOpts.begin(),
e = ToolChain.ExtraOpts.end();
i != e; ++i)
CmdArgs.push_back(i->c_str());
std::string MarchString = toolchains::Hexagon_TC::GetTargetCPU(Args);
CmdArgs.push_back(Args.MakeArgString("-m" + MarchString));
if (buildingLib) {
CmdArgs.push_back("-shared");
CmdArgs.push_back("-call_shared"); // should be the default, but doing as
// hexagon-gcc does
}
if (hasStaticArg)
CmdArgs.push_back("-static");
if (buildPIE && !buildingLib)
CmdArgs.push_back("-pie");
std::string SmallDataThreshold = GetHexagonSmallDataThresholdValue(Args);
if (!SmallDataThreshold.empty()) {
CmdArgs.push_back(
Args.MakeArgString(std::string("-G") + SmallDataThreshold));
}
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
const std::string MarchSuffix = "/" + MarchString;
const std::string G0Suffix = "/G0";
const std::string MarchG0Suffix = MarchSuffix + G0Suffix;
const std::string RootDir = toolchains::Hexagon_TC::GetGnuDir(D.InstalledDir)
+ "/";
const std::string StartFilesDir = RootDir
+ "hexagon/lib"
+ (buildingLib
? MarchG0Suffix : MarchSuffix);
//----------------------------------------------------------------------------
// moslib
//----------------------------------------------------------------------------
std::vector<std::string> oslibs;
bool hasStandalone= false;
for (arg_iterator it = Args.filtered_begin(options::OPT_moslib_EQ),
ie = Args.filtered_end(); it != ie; ++it) {
(*it)->claim();
oslibs.push_back((*it)->getValue());
hasStandalone = hasStandalone || (oslibs.back() == "standalone");
}
if (oslibs.empty()) {
oslibs.push_back("standalone");
hasStandalone = true;
}
//----------------------------------------------------------------------------
// Start Files
//----------------------------------------------------------------------------
if (incStdLib && incStartFiles) {
if (!buildingLib) {
if (hasStandalone) {
CmdArgs.push_back(
Args.MakeArgString(StartFilesDir + "/crt0_standalone.o"));
}
CmdArgs.push_back(Args.MakeArgString(StartFilesDir + "/crt0.o"));
}
std::string initObj = useShared ? "/initS.o" : "/init.o";
CmdArgs.push_back(Args.MakeArgString(StartFilesDir + initObj));
}
//----------------------------------------------------------------------------
// Library Search Paths
//----------------------------------------------------------------------------
const ToolChain::path_list &LibPaths = ToolChain.getFilePaths();
for (ToolChain::path_list::const_iterator
i = LibPaths.begin(),
e = LibPaths.end();
i != e;
++i)
CmdArgs.push_back(Args.MakeArgString(StringRef("-L") + *i));
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
Args.AddAllArgs(CmdArgs, options::OPT_T_Group);
Args.AddAllArgs(CmdArgs, options::OPT_e);
Args.AddAllArgs(CmdArgs, options::OPT_s);
Args.AddAllArgs(CmdArgs, options::OPT_t);
Args.AddAllArgs(CmdArgs, options::OPT_u_Group);
AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs);
//----------------------------------------------------------------------------
// Libraries
//----------------------------------------------------------------------------
if (incStdLib && incDefLibs) {
if (D.CCCIsCXX) {
ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
CmdArgs.push_back("-lm");
}
CmdArgs.push_back("--start-group");
if (!buildingLib) {
for(std::vector<std::string>::iterator i = oslibs.begin(),
e = oslibs.end(); i != e; ++i)
CmdArgs.push_back(Args.MakeArgString("-l" + *i));
CmdArgs.push_back("-lc");
}
CmdArgs.push_back("-lgcc");
CmdArgs.push_back("--end-group");
}
//----------------------------------------------------------------------------
// End files
//----------------------------------------------------------------------------
if (incStdLib && incStartFiles) {
std::string finiObj = useShared ? "/finiS.o" : "/fini.o";
CmdArgs.push_back(Args.MakeArgString(StartFilesDir + finiObj));
}
std::string Linker = ToolChain.GetProgramPath("hexagon-ld");
C.addCommand(
new Command(
JA, *this,
Args.MakeArgString(Linker), CmdArgs));
}
// Hexagon tools end.
llvm::Triple::ArchType darwin::getArchTypeForDarwinArchName(StringRef Str) {
// See arch(3) and llvm-gcc's driver-driver.c. We don't implement support for
// archs which Darwin doesn't use.
// The matching this routine does is fairly pointless, since it is neither the
// complete architecture list, nor a reasonable subset. The problem is that
// historically the driver driver accepts this and also ties its -march=
// handling to the architecture name, so we need to be careful before removing
// support for it.
// This code must be kept in sync with Clang's Darwin specific argument
// translation.
return llvm::StringSwitch<llvm::Triple::ArchType>(Str)
.Cases("ppc", "ppc601", "ppc603", "ppc604", "ppc604e", llvm::Triple::ppc)
.Cases("ppc750", "ppc7400", "ppc7450", "ppc970", llvm::Triple::ppc)
.Case("ppc64", llvm::Triple::ppc64)
.Cases("i386", "i486", "i486SX", "i586", "i686", llvm::Triple::x86)
.Cases("pentium", "pentpro", "pentIIm3", "pentIIm5", "pentium4",
llvm::Triple::x86)
.Case("x86_64", llvm::Triple::x86_64)
// This is derived from the driver driver.
.Cases("arm", "armv4t", "armv5", "armv6", "armv6m", llvm::Triple::arm)
.Cases("armv7", "armv7em", "armv7f", "armv7k", "armv7m", llvm::Triple::arm)
.Cases("armv7s", "xscale", llvm::Triple::arm)
.Case("r600", llvm::Triple::r600)
.Case("nvptx", llvm::Triple::nvptx)
.Case("nvptx64", llvm::Triple::nvptx64)
.Case("amdil", llvm::Triple::amdil)
.Case("spir", llvm::Triple::spir)
.Default(llvm::Triple::UnknownArch);
}
const char *Clang::getBaseInputName(const ArgList &Args,
const InputInfoList &Inputs) {
return Args.MakeArgString(
llvm::sys::path::filename(Inputs[0].getBaseInput()));
}
const char *Clang::getBaseInputStem(const ArgList &Args,
const InputInfoList &Inputs) {
const char *Str = getBaseInputName(Args, Inputs);
if (const char *End = strrchr(Str, '.'))
return Args.MakeArgString(std::string(Str, End));
return Str;
}
const char *Clang::getDependencyFileName(const ArgList &Args,
const InputInfoList &Inputs) {
// FIXME: Think about this more.
std::string Res;
if (Arg *OutputOpt = Args.getLastArg(options::OPT_o)) {
std::string Str(OutputOpt->getValue());
Res = Str.substr(0, Str.rfind('.'));
} else {
Res = getBaseInputStem(Args, Inputs);
}
return Args.MakeArgString(Res + ".d");
}
void darwin::Assemble::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
assert(Inputs.size() == 1 && "Unexpected number of inputs.");
const InputInfo &Input = Inputs[0];
// Determine the original source input.
const Action *SourceAction = &JA;
while (SourceAction->getKind() != Action::InputClass) {
assert(!SourceAction->getInputs().empty() && "unexpected root action!");
SourceAction = SourceAction->getInputs()[0];
}
// Forward -g, assuming we are dealing with an actual assembly file.
if (SourceAction->getType() == types::TY_Asm ||
SourceAction->getType() == types::TY_PP_Asm) {
if (Args.hasArg(options::OPT_gstabs))
CmdArgs.push_back("--gstabs");
else if (Args.hasArg(options::OPT_g_Group))
CmdArgs.push_back("-g");
}
// Derived from asm spec.
AddDarwinArch(Args, CmdArgs);
// Use -force_cpusubtype_ALL on x86 by default.
if (getToolChain().getTriple().getArch() == llvm::Triple::x86 ||
getToolChain().getTriple().getArch() == llvm::Triple::x86_64 ||
Args.hasArg(options::OPT_force__cpusubtype__ALL))
CmdArgs.push_back("-force_cpusubtype_ALL");
if (getToolChain().getTriple().getArch() != llvm::Triple::x86_64 &&
(((Args.hasArg(options::OPT_mkernel) ||
Args.hasArg(options::OPT_fapple_kext)) &&
(!getDarwinToolChain().isTargetIPhoneOS() ||
getDarwinToolChain().isIPhoneOSVersionLT(6, 0))) ||
Args.hasArg(options::OPT_static)))
CmdArgs.push_back("-static");
Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA,
options::OPT_Xassembler);
assert(Output.isFilename() && "Unexpected lipo output.");
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
assert(Input.isFilename() && "Invalid input.");
CmdArgs.push_back(Input.getFilename());
// asm_final spec is empty.
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("as"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void darwin::DarwinTool::anchor() {}
void darwin::DarwinTool::AddDarwinArch(const ArgList &Args,
ArgStringList &CmdArgs) const {
StringRef ArchName = getDarwinToolChain().getDarwinArchName(Args);
// Derived from darwin_arch spec.
CmdArgs.push_back("-arch");
CmdArgs.push_back(Args.MakeArgString(ArchName));
// FIXME: Is this needed anymore?
if (ArchName == "arm")
CmdArgs.push_back("-force_cpusubtype_ALL");
}
bool darwin::Link::NeedsTempPath(const InputInfoList &Inputs) const {
// We only need to generate a temp path for LTO if we aren't compiling object
// files. When compiling source files, we run 'dsymutil' after linking. We
// don't run 'dsymutil' when compiling object files.
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it)
if (it->getType() != types::TY_Object)
return true;
return false;
}
void darwin::Link::AddLinkArgs(Compilation &C,
const ArgList &Args,
ArgStringList &CmdArgs,
const InputInfoList &Inputs) const {
const Driver &D = getToolChain().getDriver();
const toolchains::Darwin &DarwinTC = getDarwinToolChain();
unsigned Version[3] = { 0, 0, 0 };
if (Arg *A = Args.getLastArg(options::OPT_mlinker_version_EQ)) {
bool HadExtra;
if (!Driver::GetReleaseVersion(A->getValue(), Version[0],
Version[1], Version[2], HadExtra) ||
HadExtra)
D.Diag(diag::err_drv_invalid_version_number)
<< A->getAsString(Args);
}
// Newer linkers support -demangle, pass it if supported and not disabled by
// the user.
if (Version[0] >= 100 && !Args.hasArg(options::OPT_Z_Xlinker__no_demangle)) {
// Don't pass -demangle to ld_classic.
//
// FIXME: This is a temporary workaround, ld should be handling this.
bool UsesLdClassic = (getToolChain().getArch() == llvm::Triple::x86 &&
Args.hasArg(options::OPT_static));
if (getToolChain().getArch() == llvm::Triple::x86) {
for (arg_iterator it = Args.filtered_begin(options::OPT_Xlinker,
options::OPT_Wl_COMMA),
ie = Args.filtered_end(); it != ie; ++it) {
const Arg *A = *it;
for (unsigned i = 0, e = A->getNumValues(); i != e; ++i)
if (StringRef(A->getValue(i)) == "-kext")
UsesLdClassic = true;
}
}
if (!UsesLdClassic)
CmdArgs.push_back("-demangle");
}
// If we are using LTO, then automatically create a temporary file path for
// the linker to use, so that it's lifetime will extend past a possible
// dsymutil step.
if (Version[0] >= 116 && D.IsUsingLTO(Args) && NeedsTempPath(Inputs)) {
const char *TmpPath = C.getArgs().MakeArgString(
D.GetTemporaryPath("cc", types::getTypeTempSuffix(types::TY_Object)));
C.addTempFile(TmpPath);
CmdArgs.push_back("-object_path_lto");
CmdArgs.push_back(TmpPath);
}
// Derived from the "link" spec.
Args.AddAllArgs(CmdArgs, options::OPT_static);
if (!Args.hasArg(options::OPT_static))
CmdArgs.push_back("-dynamic");
if (Args.hasArg(options::OPT_fgnu_runtime)) {
// FIXME: gcc replaces -lobjc in forward args with -lobjc-gnu
// here. How do we wish to handle such things?
}
if (!Args.hasArg(options::OPT_dynamiclib)) {
AddDarwinArch(Args, CmdArgs);
// FIXME: Why do this only on this path?
Args.AddLastArg(CmdArgs, options::OPT_force__cpusubtype__ALL);
Args.AddLastArg(CmdArgs, options::OPT_bundle);
Args.AddAllArgs(CmdArgs, options::OPT_bundle__loader);
Args.AddAllArgs(CmdArgs, options::OPT_client__name);
Arg *A;
if ((A = Args.getLastArg(options::OPT_compatibility__version)) ||
(A = Args.getLastArg(options::OPT_current__version)) ||
(A = Args.getLastArg(options::OPT_install__name)))
D.Diag(diag::err_drv_argument_only_allowed_with)
<< A->getAsString(Args) << "-dynamiclib";
Args.AddLastArg(CmdArgs, options::OPT_force__flat__namespace);
Args.AddLastArg(CmdArgs, options::OPT_keep__private__externs);
Args.AddLastArg(CmdArgs, options::OPT_private__bundle);
} else {
CmdArgs.push_back("-dylib");
Arg *A;
if ((A = Args.getLastArg(options::OPT_bundle)) ||
(A = Args.getLastArg(options::OPT_bundle__loader)) ||
(A = Args.getLastArg(options::OPT_client__name)) ||
(A = Args.getLastArg(options::OPT_force__flat__namespace)) ||
(A = Args.getLastArg(options::OPT_keep__private__externs)) ||
(A = Args.getLastArg(options::OPT_private__bundle)))
D.Diag(diag::err_drv_argument_not_allowed_with)
<< A->getAsString(Args) << "-dynamiclib";
Args.AddAllArgsTranslated(CmdArgs, options::OPT_compatibility__version,
"-dylib_compatibility_version");
Args.AddAllArgsTranslated(CmdArgs, options::OPT_current__version,
"-dylib_current_version");
AddDarwinArch(Args, CmdArgs);
Args.AddAllArgsTranslated(CmdArgs, options::OPT_install__name,
"-dylib_install_name");
}
Args.AddLastArg(CmdArgs, options::OPT_all__load);
Args.AddAllArgs(CmdArgs, options::OPT_allowable__client);
Args.AddLastArg(CmdArgs, options::OPT_bind__at__load);
if (DarwinTC.isTargetIPhoneOS())
Args.AddLastArg(CmdArgs, options::OPT_arch__errors__fatal);
Args.AddLastArg(CmdArgs, options::OPT_dead__strip);
Args.AddLastArg(CmdArgs, options::OPT_no__dead__strip__inits__and__terms);
Args.AddAllArgs(CmdArgs, options::OPT_dylib__file);
Args.AddLastArg(CmdArgs, options::OPT_dynamic);
Args.AddAllArgs(CmdArgs, options::OPT_exported__symbols__list);
Args.AddLastArg(CmdArgs, options::OPT_flat__namespace);
Args.AddAllArgs(CmdArgs, options::OPT_force__load);
Args.AddAllArgs(CmdArgs, options::OPT_headerpad__max__install__names);
Args.AddAllArgs(CmdArgs, options::OPT_image__base);
Args.AddAllArgs(CmdArgs, options::OPT_init);
// Add the deployment target.
VersionTuple TargetVersion = DarwinTC.getTargetVersion();
// If we had an explicit -mios-simulator-version-min argument, honor that,
// otherwise use the traditional deployment targets. We can't just check the
// is-sim attribute because existing code follows this path, and the linker
// may not handle the argument.
//
// FIXME: We may be able to remove this, once we can verify no one depends on
// it.
if (Args.hasArg(options::OPT_mios_simulator_version_min_EQ))
CmdArgs.push_back("-ios_simulator_version_min");
else if (DarwinTC.isTargetIPhoneOS())
CmdArgs.push_back("-iphoneos_version_min");
else
CmdArgs.push_back("-macosx_version_min");
CmdArgs.push_back(Args.MakeArgString(TargetVersion.getAsString()));
Args.AddLastArg(CmdArgs, options::OPT_nomultidefs);
Args.AddLastArg(CmdArgs, options::OPT_multi__module);
Args.AddLastArg(CmdArgs, options::OPT_single__module);
Args.AddAllArgs(CmdArgs, options::OPT_multiply__defined);
Args.AddAllArgs(CmdArgs, options::OPT_multiply__defined__unused);
if (const Arg *A = Args.getLastArg(options::OPT_fpie, options::OPT_fPIE,
options::OPT_fno_pie,
options::OPT_fno_PIE)) {
if (A->getOption().matches(options::OPT_fpie) ||
A->getOption().matches(options::OPT_fPIE))
CmdArgs.push_back("-pie");
else
CmdArgs.push_back("-no_pie");
}
Args.AddLastArg(CmdArgs, options::OPT_prebind);
Args.AddLastArg(CmdArgs, options::OPT_noprebind);
Args.AddLastArg(CmdArgs, options::OPT_nofixprebinding);
Args.AddLastArg(CmdArgs, options::OPT_prebind__all__twolevel__modules);
Args.AddLastArg(CmdArgs, options::OPT_read__only__relocs);
Args.AddAllArgs(CmdArgs, options::OPT_sectcreate);
Args.AddAllArgs(CmdArgs, options::OPT_sectorder);
Args.AddAllArgs(CmdArgs, options::OPT_seg1addr);
Args.AddAllArgs(CmdArgs, options::OPT_segprot);
Args.AddAllArgs(CmdArgs, options::OPT_segaddr);
Args.AddAllArgs(CmdArgs, options::OPT_segs__read__only__addr);
Args.AddAllArgs(CmdArgs, options::OPT_segs__read__write__addr);
Args.AddAllArgs(CmdArgs, options::OPT_seg__addr__table);
Args.AddAllArgs(CmdArgs, options::OPT_seg__addr__table__filename);
Args.AddAllArgs(CmdArgs, options::OPT_sub__library);
Args.AddAllArgs(CmdArgs, options::OPT_sub__umbrella);
// Give --sysroot= preference, over the Apple specific behavior to also use
// --isysroot as the syslibroot.
StringRef sysroot = C.getSysRoot();
if (sysroot != "") {
CmdArgs.push_back("-syslibroot");
CmdArgs.push_back(C.getArgs().MakeArgString(sysroot));
} else if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) {
CmdArgs.push_back("-syslibroot");
CmdArgs.push_back(A->getValue());
}
Args.AddLastArg(CmdArgs, options::OPT_twolevel__namespace);
Args.AddLastArg(CmdArgs, options::OPT_twolevel__namespace__hints);
Args.AddAllArgs(CmdArgs, options::OPT_umbrella);
Args.AddAllArgs(CmdArgs, options::OPT_undefined);
Args.AddAllArgs(CmdArgs, options::OPT_unexported__symbols__list);
Args.AddAllArgs(CmdArgs, options::OPT_weak__reference__mismatches);
Args.AddLastArg(CmdArgs, options::OPT_X_Flag);
Args.AddAllArgs(CmdArgs, options::OPT_y);
Args.AddLastArg(CmdArgs, options::OPT_w);
Args.AddAllArgs(CmdArgs, options::OPT_pagezero__size);
Args.AddAllArgs(CmdArgs, options::OPT_segs__read__);
Args.AddLastArg(CmdArgs, options::OPT_seglinkedit);
Args.AddLastArg(CmdArgs, options::OPT_noseglinkedit);
Args.AddAllArgs(CmdArgs, options::OPT_sectalign);
Args.AddAllArgs(CmdArgs, options::OPT_sectobjectsymbols);
Args.AddAllArgs(CmdArgs, options::OPT_segcreate);
Args.AddLastArg(CmdArgs, options::OPT_whyload);
Args.AddLastArg(CmdArgs, options::OPT_whatsloaded);
Args.AddAllArgs(CmdArgs, options::OPT_dylinker__install__name);
Args.AddLastArg(CmdArgs, options::OPT_dylinker);
Args.AddLastArg(CmdArgs, options::OPT_Mach);
}
void darwin::Link::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
assert(Output.getType() == types::TY_Image && "Invalid linker output type.");
// The logic here is derived from gcc's behavior; most of which
// comes from specs (starting with link_command). Consult gcc for
// more information.
ArgStringList CmdArgs;
/// Hack(tm) to ignore linking errors when we are doing ARC migration.
if (Args.hasArg(options::OPT_ccc_arcmt_check,
options::OPT_ccc_arcmt_migrate)) {
for (ArgList::const_iterator I = Args.begin(), E = Args.end(); I != E; ++I)
(*I)->claim();
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("touch"));
CmdArgs.push_back(Output.getFilename());
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
return;
}
// I'm not sure why this particular decomposition exists in gcc, but
// we follow suite for ease of comparison.
AddLinkArgs(C, Args, CmdArgs, Inputs);
Args.AddAllArgs(CmdArgs, options::OPT_d_Flag);
Args.AddAllArgs(CmdArgs, options::OPT_s);
Args.AddAllArgs(CmdArgs, options::OPT_t);
Args.AddAllArgs(CmdArgs, options::OPT_Z_Flag);
Args.AddAllArgs(CmdArgs, options::OPT_u_Group);
Args.AddLastArg(CmdArgs, options::OPT_e);
Args.AddAllArgs(CmdArgs, options::OPT_m_Separate);
Args.AddAllArgs(CmdArgs, options::OPT_r);
// Forward -ObjC when either -ObjC or -ObjC++ is used, to force loading
// members of static archive libraries which implement Objective-C classes or
// categories.
if (Args.hasArg(options::OPT_ObjC) || Args.hasArg(options::OPT_ObjCXX))
CmdArgs.push_back("-ObjC");
if (Args.hasArg(options::OPT_rdynamic))
CmdArgs.push_back("-export_dynamic");
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
// Derived from startfile spec.
if (Args.hasArg(options::OPT_dynamiclib)) {
// Derived from darwin_dylib1 spec.
if (getDarwinToolChain().isTargetIOSSimulator()) {
// The simulator doesn't have a versioned crt1 file.
CmdArgs.push_back("-ldylib1.o");
} else if (getDarwinToolChain().isTargetIPhoneOS()) {
if (getDarwinToolChain().isIPhoneOSVersionLT(3, 1))
CmdArgs.push_back("-ldylib1.o");
} else {
if (getDarwinToolChain().isMacosxVersionLT(10, 5))
CmdArgs.push_back("-ldylib1.o");
else if (getDarwinToolChain().isMacosxVersionLT(10, 6))
CmdArgs.push_back("-ldylib1.10.5.o");
}
} else {
if (Args.hasArg(options::OPT_bundle)) {
if (!Args.hasArg(options::OPT_static)) {
// Derived from darwin_bundle1 spec.
if (getDarwinToolChain().isTargetIOSSimulator()) {
// The simulator doesn't have a versioned crt1 file.
CmdArgs.push_back("-lbundle1.o");
} else if (getDarwinToolChain().isTargetIPhoneOS()) {
if (getDarwinToolChain().isIPhoneOSVersionLT(3, 1))
CmdArgs.push_back("-lbundle1.o");
} else {
if (getDarwinToolChain().isMacosxVersionLT(10, 6))
CmdArgs.push_back("-lbundle1.o");
}
}
} else {
if (Args.hasArg(options::OPT_pg) &&
getToolChain().SupportsProfiling()) {
if (Args.hasArg(options::OPT_static) ||
Args.hasArg(options::OPT_object) ||
Args.hasArg(options::OPT_preload)) {
CmdArgs.push_back("-lgcrt0.o");
} else {
CmdArgs.push_back("-lgcrt1.o");
// darwin_crt2 spec is empty.
}
// By default on OS X 10.8 and later, we don't link with a crt1.o
// file and the linker knows to use _main as the entry point. But,
// when compiling with -pg, we need to link with the gcrt1.o file,
// so pass the -no_new_main option to tell the linker to use the
// "start" symbol as the entry point.
if (getDarwinToolChain().isTargetMacOS() &&
!getDarwinToolChain().isMacosxVersionLT(10, 8))
CmdArgs.push_back("-no_new_main");
} else {
if (Args.hasArg(options::OPT_static) ||
Args.hasArg(options::OPT_object) ||
Args.hasArg(options::OPT_preload)) {
CmdArgs.push_back("-lcrt0.o");
} else {
// Derived from darwin_crt1 spec.
if (getDarwinToolChain().isTargetIOSSimulator()) {
// The simulator doesn't have a versioned crt1 file.
CmdArgs.push_back("-lcrt1.o");
} else if (getDarwinToolChain().isTargetIPhoneOS()) {
if (getDarwinToolChain().isIPhoneOSVersionLT(3, 1))
CmdArgs.push_back("-lcrt1.o");
else if (getDarwinToolChain().isIPhoneOSVersionLT(6, 0))
CmdArgs.push_back("-lcrt1.3.1.o");
} else {
if (getDarwinToolChain().isMacosxVersionLT(10, 5))
CmdArgs.push_back("-lcrt1.o");
else if (getDarwinToolChain().isMacosxVersionLT(10, 6))
CmdArgs.push_back("-lcrt1.10.5.o");
else if (getDarwinToolChain().isMacosxVersionLT(10, 8))
CmdArgs.push_back("-lcrt1.10.6.o");
// darwin_crt2 spec is empty.
}
}
}
}
}
if (!getDarwinToolChain().isTargetIPhoneOS() &&
Args.hasArg(options::OPT_shared_libgcc) &&
getDarwinToolChain().isMacosxVersionLT(10, 5)) {
const char *Str =
Args.MakeArgString(getToolChain().GetFilePath("crt3.o"));
CmdArgs.push_back(Str);
}
}
Args.AddAllArgs(CmdArgs, options::OPT_L);
SanitizerArgs Sanitize(getToolChain().getDriver(), Args);
// If we're building a dynamic lib with -fsanitize=address,
// unresolved symbols may appear. Mark all
// of them as dynamic_lookup. Linking executables is handled in
// lib/Driver/ToolChains.cpp.
if (Sanitize.needsAsanRt()) {
if (Args.hasArg(options::OPT_dynamiclib) ||
Args.hasArg(options::OPT_bundle)) {
CmdArgs.push_back("-undefined");
CmdArgs.push_back("dynamic_lookup");
}
}
if (Args.hasArg(options::OPT_fopenmp))
// This is more complicated in gcc...
CmdArgs.push_back("-lgomp");
AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs);
if (isObjCRuntimeLinked(Args) &&
!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nodefaultlibs)) {
// Avoid linking compatibility stubs on i386 mac.
if (!getDarwinToolChain().isTargetMacOS() ||
getDarwinToolChain().getArch() != llvm::Triple::x86) {
// If we don't have ARC or subscripting runtime support, link in the
// runtime stubs. We have to do this *before* adding any of the normal
// linker inputs so that its initializer gets run first.
ObjCRuntime runtime =
getDarwinToolChain().getDefaultObjCRuntime(/*nonfragile*/ true);
// We use arclite library for both ARC and subscripting support.
if ((!runtime.hasNativeARC() && isObjCAutoRefCount(Args)) ||
!runtime.hasSubscripting())
getDarwinToolChain().AddLinkARCArgs(Args, CmdArgs);
}
CmdArgs.push_back("-framework");
CmdArgs.push_back("Foundation");
// Link libobj.
CmdArgs.push_back("-lobjc");
}
if (LinkingOutput) {
CmdArgs.push_back("-arch_multiple");
CmdArgs.push_back("-final_output");
CmdArgs.push_back(LinkingOutput);
}
if (Args.hasArg(options::OPT_fnested_functions))
CmdArgs.push_back("-allow_stack_execute");
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nodefaultlibs)) {
if (getToolChain().getDriver().CCCIsCXX)
getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);
// link_ssp spec is empty.
// Let the tool chain choose which runtime library to link.
getDarwinToolChain().AddLinkRuntimeLibArgs(Args, CmdArgs);
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
// endfile_spec is empty.
}
Args.AddAllArgs(CmdArgs, options::OPT_T_Group);
Args.AddAllArgs(CmdArgs, options::OPT_F);
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("ld"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void darwin::Lipo::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
CmdArgs.push_back("-create");
assert(Output.isFilename() && "Unexpected lipo output.");
CmdArgs.push_back("-output");
CmdArgs.push_back(Output.getFilename());
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
const InputInfo &II = *it;
assert(II.isFilename() && "Unexpected lipo input.");
CmdArgs.push_back(II.getFilename());
}
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("lipo"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void darwin::Dsymutil::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
assert(Inputs.size() == 1 && "Unable to handle multiple inputs.");
const InputInfo &Input = Inputs[0];
assert(Input.isFilename() && "Unexpected dsymutil input.");
CmdArgs.push_back(Input.getFilename());
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("dsymutil"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void darwin::VerifyDebug::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
CmdArgs.push_back("--verify");
CmdArgs.push_back("--debug-info");
CmdArgs.push_back("--eh-frame");
CmdArgs.push_back("--quiet");
assert(Inputs.size() == 1 && "Unable to handle multiple inputs.");
const InputInfo &Input = Inputs[0];
assert(Input.isFilename() && "Unexpected verify input");
// Grabbing the output of the earlier dsymutil run.
CmdArgs.push_back(Input.getFilename());
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("dwarfdump"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void solaris::Assemble::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA,
options::OPT_Xassembler);
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
const InputInfo &II = *it;
CmdArgs.push_back(II.getFilename());
}
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("as"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void solaris::Link::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
// FIXME: Find a real GCC, don't hard-code versions here
std::string GCCLibPath = "/usr/gcc/4.5/lib/gcc/";
const llvm::Triple &T = getToolChain().getTriple();
std::string LibPath = "/usr/lib/";
llvm::Triple::ArchType Arch = T.getArch();
switch (Arch) {
case llvm::Triple::x86:
GCCLibPath += ("i386-" + T.getVendorName() + "-" +
T.getOSName()).str() + "/4.5.2/";
break;
case llvm::Triple::x86_64:
GCCLibPath += ("i386-" + T.getVendorName() + "-" +
T.getOSName()).str();
GCCLibPath += "/4.5.2/amd64/";
LibPath += "amd64/";
break;
default:
assert(0 && "Unsupported architecture");
}
ArgStringList CmdArgs;
// Demangle C++ names in errors
CmdArgs.push_back("-C");
if ((!Args.hasArg(options::OPT_nostdlib)) &&
(!Args.hasArg(options::OPT_shared))) {
CmdArgs.push_back("-e");
CmdArgs.push_back("_start");
}
if (Args.hasArg(options::OPT_static)) {
CmdArgs.push_back("-Bstatic");
CmdArgs.push_back("-dn");
} else {
CmdArgs.push_back("-Bdynamic");
if (Args.hasArg(options::OPT_shared)) {
CmdArgs.push_back("-shared");
} else {
CmdArgs.push_back("--dynamic-linker");
CmdArgs.push_back(Args.MakeArgString(LibPath + "ld.so.1"));
}
}
if (Output.isFilename()) {
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
} else {
assert(Output.isNothing() && "Invalid output.");
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
if (!Args.hasArg(options::OPT_shared)) {
CmdArgs.push_back(Args.MakeArgString(LibPath + "crt1.o"));
CmdArgs.push_back(Args.MakeArgString(LibPath + "crti.o"));
CmdArgs.push_back(Args.MakeArgString(LibPath + "values-Xa.o"));
CmdArgs.push_back(Args.MakeArgString(GCCLibPath + "crtbegin.o"));
} else {
CmdArgs.push_back(Args.MakeArgString(LibPath + "crti.o"));
CmdArgs.push_back(Args.MakeArgString(LibPath + "values-Xa.o"));
CmdArgs.push_back(Args.MakeArgString(GCCLibPath + "crtbegin.o"));
}
if (getToolChain().getDriver().CCCIsCXX)
CmdArgs.push_back(Args.MakeArgString(LibPath + "cxa_finalize.o"));
}
CmdArgs.push_back(Args.MakeArgString("-L" + GCCLibPath));
Args.AddAllArgs(CmdArgs, options::OPT_L);
Args.AddAllArgs(CmdArgs, options::OPT_T_Group);
Args.AddAllArgs(CmdArgs, options::OPT_e);
Args.AddAllArgs(CmdArgs, options::OPT_r);
AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs);
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nodefaultlibs)) {
if (getToolChain().getDriver().CCCIsCXX)
getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);
CmdArgs.push_back("-lgcc_s");
if (!Args.hasArg(options::OPT_shared)) {
CmdArgs.push_back("-lgcc");
CmdArgs.push_back("-lc");
CmdArgs.push_back("-lm");
}
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
CmdArgs.push_back(Args.MakeArgString(GCCLibPath + "crtend.o"));
}
CmdArgs.push_back(Args.MakeArgString(LibPath + "crtn.o"));
addProfileRT(getToolChain(), Args, CmdArgs, getToolChain().getTriple());
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("ld"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void auroraux::Assemble::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA,
options::OPT_Xassembler);
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
const InputInfo &II = *it;
CmdArgs.push_back(II.getFilename());
}
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("gas"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void auroraux::Link::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
if ((!Args.hasArg(options::OPT_nostdlib)) &&
(!Args.hasArg(options::OPT_shared))) {
CmdArgs.push_back("-e");
CmdArgs.push_back("_start");
}
if (Args.hasArg(options::OPT_static)) {
CmdArgs.push_back("-Bstatic");
CmdArgs.push_back("-dn");
} else {
// CmdArgs.push_back("--eh-frame-hdr");
CmdArgs.push_back("-Bdynamic");
if (Args.hasArg(options::OPT_shared)) {
CmdArgs.push_back("-shared");
} else {
CmdArgs.push_back("--dynamic-linker");
CmdArgs.push_back("/lib/ld.so.1"); // 64Bit Path /lib/amd64/ld.so.1
}
}
if (Output.isFilename()) {
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
} else {
assert(Output.isNothing() && "Invalid output.");
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
if (!Args.hasArg(options::OPT_shared)) {
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crt1.o")));
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crti.o")));
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crtbegin.o")));
} else {
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crti.o")));
}
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crtn.o")));
}
CmdArgs.push_back(Args.MakeArgString("-L/opt/gcc4/lib/gcc/"
+ getToolChain().getTripleString()
+ "/4.2.4"));
Args.AddAllArgs(CmdArgs, options::OPT_L);
Args.AddAllArgs(CmdArgs, options::OPT_T_Group);
Args.AddAllArgs(CmdArgs, options::OPT_e);
AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs);
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nodefaultlibs)) {
// FIXME: For some reason GCC passes -lgcc before adding
// the default system libraries. Just mimic this for now.
CmdArgs.push_back("-lgcc");
if (Args.hasArg(options::OPT_pthread))
CmdArgs.push_back("-pthread");
if (!Args.hasArg(options::OPT_shared))
CmdArgs.push_back("-lc");
CmdArgs.push_back("-lgcc");
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
if (!Args.hasArg(options::OPT_shared))
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crtend.o")));
}
addProfileRT(getToolChain(), Args, CmdArgs, getToolChain().getTriple());
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("ld"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void openbsd::Assemble::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA,
options::OPT_Xassembler);
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
const InputInfo &II = *it;
CmdArgs.push_back(II.getFilename());
}
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("as"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void openbsd::Link::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
const Driver &D = getToolChain().getDriver();
ArgStringList CmdArgs;
// Silence warning for "clang -g foo.o -o foo"
Args.ClaimAllArgs(options::OPT_g_Group);
// and "clang -emit-llvm foo.o -o foo"
Args.ClaimAllArgs(options::OPT_emit_llvm);
// and for "clang -w foo.o -o foo". Other warning options are already
// handled somewhere else.
Args.ClaimAllArgs(options::OPT_w);
if ((!Args.hasArg(options::OPT_nostdlib)) &&
(!Args.hasArg(options::OPT_shared))) {
CmdArgs.push_back("-e");
CmdArgs.push_back("__start");
}
if (Args.hasArg(options::OPT_static)) {
CmdArgs.push_back("-Bstatic");
} else {
if (Args.hasArg(options::OPT_rdynamic))
CmdArgs.push_back("-export-dynamic");
CmdArgs.push_back("--eh-frame-hdr");
CmdArgs.push_back("-Bdynamic");
if (Args.hasArg(options::OPT_shared)) {
CmdArgs.push_back("-shared");
} else {
CmdArgs.push_back("-dynamic-linker");
CmdArgs.push_back("/usr/libexec/ld.so");
}
}
if (Output.isFilename()) {
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
} else {
assert(Output.isNothing() && "Invalid output.");
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
if (!Args.hasArg(options::OPT_shared)) {
if (Args.hasArg(options::OPT_pg))
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("gcrt0.o")));
else
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crt0.o")));
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crtbegin.o")));
} else {
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crtbeginS.o")));
}
}
std::string Triple = getToolChain().getTripleString();
if (Triple.substr(0, 6) == "x86_64")
Triple.replace(0, 6, "amd64");
CmdArgs.push_back(Args.MakeArgString("-L/usr/lib/gcc-lib/" + Triple +
"/4.2.1"));
Args.AddAllArgs(CmdArgs, options::OPT_L);
Args.AddAllArgs(CmdArgs, options::OPT_T_Group);
Args.AddAllArgs(CmdArgs, options::OPT_e);
Args.AddAllArgs(CmdArgs, options::OPT_s);
Args.AddAllArgs(CmdArgs, options::OPT_t);
Args.AddAllArgs(CmdArgs, options::OPT_Z_Flag);
Args.AddAllArgs(CmdArgs, options::OPT_r);
AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs);
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nodefaultlibs)) {
if (D.CCCIsCXX) {
getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);
if (Args.hasArg(options::OPT_pg))
CmdArgs.push_back("-lm_p");
else
CmdArgs.push_back("-lm");
}
// FIXME: For some reason GCC passes -lgcc before adding
// the default system libraries. Just mimic this for now.
CmdArgs.push_back("-lgcc");
if (Args.hasArg(options::OPT_pthread)) {
if (!Args.hasArg(options::OPT_shared) &&
Args.hasArg(options::OPT_pg))
CmdArgs.push_back("-lpthread_p");
else
CmdArgs.push_back("-lpthread");
}
if (!Args.hasArg(options::OPT_shared)) {
if (Args.hasArg(options::OPT_pg))
CmdArgs.push_back("-lc_p");
else
CmdArgs.push_back("-lc");
}
CmdArgs.push_back("-lgcc");
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
if (!Args.hasArg(options::OPT_shared))
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crtend.o")));
else
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crtendS.o")));
}
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("ld"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void bitrig::Assemble::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA,
options::OPT_Xassembler);
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
const InputInfo &II = *it;
CmdArgs.push_back(II.getFilename());
}
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("as"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void bitrig::Link::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
const Driver &D = getToolChain().getDriver();
ArgStringList CmdArgs;
if ((!Args.hasArg(options::OPT_nostdlib)) &&
(!Args.hasArg(options::OPT_shared))) {
CmdArgs.push_back("-e");
CmdArgs.push_back("__start");
}
if (Args.hasArg(options::OPT_static)) {
CmdArgs.push_back("-Bstatic");
} else {
if (Args.hasArg(options::OPT_rdynamic))
CmdArgs.push_back("-export-dynamic");
CmdArgs.push_back("--eh-frame-hdr");
CmdArgs.push_back("-Bdynamic");
if (Args.hasArg(options::OPT_shared)) {
CmdArgs.push_back("-shared");
} else {
CmdArgs.push_back("-dynamic-linker");
CmdArgs.push_back("/usr/libexec/ld.so");
}
}
if (Output.isFilename()) {
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
} else {
assert(Output.isNothing() && "Invalid output.");
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
if (!Args.hasArg(options::OPT_shared)) {
if (Args.hasArg(options::OPT_pg))
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("gcrt0.o")));
else
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crt0.o")));
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crtbegin.o")));
} else {
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crtbeginS.o")));
}
}
Args.AddAllArgs(CmdArgs, options::OPT_L);
Args.AddAllArgs(CmdArgs, options::OPT_T_Group);
Args.AddAllArgs(CmdArgs, options::OPT_e);
AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs);
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nodefaultlibs)) {
if (D.CCCIsCXX) {
getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);
if (Args.hasArg(options::OPT_pg))
CmdArgs.push_back("-lm_p");
else
CmdArgs.push_back("-lm");
}
if (Args.hasArg(options::OPT_pthread)) {
if (!Args.hasArg(options::OPT_shared) &&
Args.hasArg(options::OPT_pg))
CmdArgs.push_back("-lpthread_p");
else
CmdArgs.push_back("-lpthread");
}
if (!Args.hasArg(options::OPT_shared)) {
if (Args.hasArg(options::OPT_pg))
CmdArgs.push_back("-lc_p");
else
CmdArgs.push_back("-lc");
}
std::string myarch = "-lclang_rt.";
const llvm::Triple &T = getToolChain().getTriple();
llvm::Triple::ArchType Arch = T.getArch();
switch (Arch) {
case llvm::Triple::arm:
myarch += ("arm");
break;
case llvm::Triple::x86:
myarch += ("i386");
break;
case llvm::Triple::x86_64:
myarch += ("amd64");
break;
default:
assert(0 && "Unsupported architecture");
}
CmdArgs.push_back(Args.MakeArgString(myarch));
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
if (!Args.hasArg(options::OPT_shared))
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crtend.o")));
else
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crtendS.o")));
}
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("ld"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void freebsd::Assemble::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
// When building 32-bit code on FreeBSD/amd64, we have to explicitly
// instruct as in the base system to assemble 32-bit code.
if (getToolChain().getArch() == llvm::Triple::x86)
CmdArgs.push_back("--32");
else if (getToolChain().getArch() == llvm::Triple::ppc)
CmdArgs.push_back("-a32");
else if (getToolChain().getArch() == llvm::Triple::mips ||
getToolChain().getArch() == llvm::Triple::mipsel ||
getToolChain().getArch() == llvm::Triple::mips64 ||
getToolChain().getArch() == llvm::Triple::mips64el) {
StringRef CPUName;
StringRef ABIName;
getMipsCPUAndABI(Args, getToolChain(), CPUName, ABIName);
CmdArgs.push_back("-march");
CmdArgs.push_back(CPUName.data());
CmdArgs.push_back("-mabi");
CmdArgs.push_back(getGnuCompatibleMipsABIName(ABIName).data());
if (getToolChain().getArch() == llvm::Triple::mips ||
getToolChain().getArch() == llvm::Triple::mips64)
CmdArgs.push_back("-EB");
else
CmdArgs.push_back("-EL");
Arg *LastPICArg = Args.getLastArg(options::OPT_fPIC, options::OPT_fno_PIC,
options::OPT_fpic, options::OPT_fno_pic,
options::OPT_fPIE, options::OPT_fno_PIE,
options::OPT_fpie, options::OPT_fno_pie);
if (LastPICArg &&
(LastPICArg->getOption().matches(options::OPT_fPIC) ||
LastPICArg->getOption().matches(options::OPT_fpic) ||
LastPICArg->getOption().matches(options::OPT_fPIE) ||
LastPICArg->getOption().matches(options::OPT_fpie))) {
CmdArgs.push_back("-KPIC");
}
} else if (getToolChain().getArch() == llvm::Triple::arm ||
getToolChain().getArch() == llvm::Triple::thumb) {
CmdArgs.push_back("-mfpu=softvfp");
switch(getToolChain().getTriple().getEnvironment()) {
case llvm::Triple::GNUEABI:
case llvm::Triple::EABI:
CmdArgs.push_back("-meabi=5");
break;
default:
CmdArgs.push_back("-matpcs");
}
}
Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA,
options::OPT_Xassembler);
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
const InputInfo &II = *it;
CmdArgs.push_back(II.getFilename());
}
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("as"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void freebsd::Link::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
const toolchains::FreeBSD& ToolChain =
static_cast<const toolchains::FreeBSD&>(getToolChain());
const Driver &D = ToolChain.getDriver();
ArgStringList CmdArgs;
// Silence warning for "clang -g foo.o -o foo"
Args.ClaimAllArgs(options::OPT_g_Group);
// and "clang -emit-llvm foo.o -o foo"
Args.ClaimAllArgs(options::OPT_emit_llvm);
// and for "clang -w foo.o -o foo". Other warning options are already
// handled somewhere else.
Args.ClaimAllArgs(options::OPT_w);
if (!D.SysRoot.empty())
CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
if (Args.hasArg(options::OPT_pie))
CmdArgs.push_back("-pie");
if (Args.hasArg(options::OPT_static)) {
CmdArgs.push_back("-Bstatic");
} else {
if (Args.hasArg(options::OPT_rdynamic))
CmdArgs.push_back("-export-dynamic");
CmdArgs.push_back("--eh-frame-hdr");
if (Args.hasArg(options::OPT_shared)) {
CmdArgs.push_back("-Bshareable");
} else {
CmdArgs.push_back("-dynamic-linker");
CmdArgs.push_back("/libexec/ld-elf.so.1");
}
if (ToolChain.getTriple().getOSMajorVersion() >= 9) {
llvm::Triple::ArchType Arch = ToolChain.getArch();
if (Arch == llvm::Triple::arm || Arch == llvm::Triple::sparc ||
Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64) {
CmdArgs.push_back("--hash-style=both");
}
}
CmdArgs.push_back("--enable-new-dtags");
}
// When building 32-bit code on FreeBSD/amd64, we have to explicitly
// instruct ld in the base system to link 32-bit code.
if (ToolChain.getArch() == llvm::Triple::x86) {
CmdArgs.push_back("-m");
CmdArgs.push_back("elf_i386_fbsd");
}
if (ToolChain.getArch() == llvm::Triple::ppc) {
CmdArgs.push_back("-m");
CmdArgs.push_back("elf32ppc_fbsd");
}
if (Output.isFilename()) {
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
} else {
assert(Output.isNothing() && "Invalid output.");
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
const char *crt1 = NULL;
if (!Args.hasArg(options::OPT_shared)) {
if (Args.hasArg(options::OPT_pg))
crt1 = "gcrt1.o";
else if (Args.hasArg(options::OPT_pie))
crt1 = "Scrt1.o";
else
crt1 = "crt1.o";
}
if (crt1)
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt1)));
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o")));
const char *crtbegin = NULL;
if (Args.hasArg(options::OPT_static))
crtbegin = "crtbeginT.o";
else if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie))
crtbegin = "crtbeginS.o";
else
crtbegin = "crtbegin.o";
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtbegin)));
}
Args.AddAllArgs(CmdArgs, options::OPT_L);
const ToolChain::path_list Paths = ToolChain.getFilePaths();
for (ToolChain::path_list::const_iterator i = Paths.begin(), e = Paths.end();
i != e; ++i)
CmdArgs.push_back(Args.MakeArgString(StringRef("-L") + *i));
Args.AddAllArgs(CmdArgs, options::OPT_T_Group);
Args.AddAllArgs(CmdArgs, options::OPT_e);
Args.AddAllArgs(CmdArgs, options::OPT_s);
Args.AddAllArgs(CmdArgs, options::OPT_t);
Args.AddAllArgs(CmdArgs, options::OPT_Z_Flag);
Args.AddAllArgs(CmdArgs, options::OPT_r);
AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs);
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nodefaultlibs)) {
if (D.CCCIsCXX) {
ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
if (Args.hasArg(options::OPT_pg))
CmdArgs.push_back("-lm_p");
else
CmdArgs.push_back("-lm");
}
// FIXME: For some reason GCC passes -lgcc and -lgcc_s before adding
// the default system libraries. Just mimic this for now.
if (Args.hasArg(options::OPT_pg))
CmdArgs.push_back("-lgcc_p");
else
CmdArgs.push_back("-lgcc");
if (Args.hasArg(options::OPT_static)) {
CmdArgs.push_back("-lgcc_eh");
} else if (Args.hasArg(options::OPT_pg)) {
CmdArgs.push_back("-lgcc_eh_p");
} else {
CmdArgs.push_back("--as-needed");
CmdArgs.push_back("-lgcc_s");
CmdArgs.push_back("--no-as-needed");
}
if (Args.hasArg(options::OPT_pthread)) {
if (Args.hasArg(options::OPT_pg))
CmdArgs.push_back("-lpthread_p");
else
CmdArgs.push_back("-lpthread");
}
if (Args.hasArg(options::OPT_pg)) {
if (Args.hasArg(options::OPT_shared))
CmdArgs.push_back("-lc");
else
CmdArgs.push_back("-lc_p");
CmdArgs.push_back("-lgcc_p");
} else {
CmdArgs.push_back("-lc");
CmdArgs.push_back("-lgcc");
}
if (Args.hasArg(options::OPT_static)) {
CmdArgs.push_back("-lgcc_eh");
} else if (Args.hasArg(options::OPT_pg)) {
CmdArgs.push_back("-lgcc_eh_p");
} else {
CmdArgs.push_back("--as-needed");
CmdArgs.push_back("-lgcc_s");
CmdArgs.push_back("--no-as-needed");
}
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie))
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtendS.o")));
else
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtend.o")));
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
}
addProfileRT(ToolChain, Args, CmdArgs, ToolChain.getTriple());
const char *Exec =
Args.MakeArgString(ToolChain.GetProgramPath("ld"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void netbsd::Assemble::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
// When building 32-bit code on NetBSD/amd64, we have to explicitly
// instruct as in the base system to assemble 32-bit code.
if (getToolChain().getArch() == llvm::Triple::x86)
CmdArgs.push_back("--32");
// Set byte order explicitly
if (getToolChain().getArch() == llvm::Triple::mips)
CmdArgs.push_back("-EB");
else if (getToolChain().getArch() == llvm::Triple::mipsel)
CmdArgs.push_back("-EL");
Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA,
options::OPT_Xassembler);
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
const InputInfo &II = *it;
CmdArgs.push_back(II.getFilename());
}
const char *Exec = Args.MakeArgString((getToolChain().GetProgramPath("as")));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void netbsd::Link::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
const Driver &D = getToolChain().getDriver();
ArgStringList CmdArgs;
if (!D.SysRoot.empty())
CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
if (Args.hasArg(options::OPT_static)) {
CmdArgs.push_back("-Bstatic");
} else {
if (Args.hasArg(options::OPT_rdynamic))
CmdArgs.push_back("-export-dynamic");
CmdArgs.push_back("--eh-frame-hdr");
if (Args.hasArg(options::OPT_shared)) {
CmdArgs.push_back("-Bshareable");
} else {
CmdArgs.push_back("-dynamic-linker");
CmdArgs.push_back("/libexec/ld.elf_so");
}
}
// When building 32-bit code on NetBSD/amd64, we have to explicitly
// instruct ld in the base system to link 32-bit code.
if (getToolChain().getArch() == llvm::Triple::x86) {
CmdArgs.push_back("-m");
CmdArgs.push_back("elf_i386");
}
if (Output.isFilename()) {
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
} else {
assert(Output.isNothing() && "Invalid output.");
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
if (!Args.hasArg(options::OPT_shared)) {
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crt0.o")));
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crti.o")));
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crtbegin.o")));
} else {
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crti.o")));
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crtbeginS.o")));
}
}
Args.AddAllArgs(CmdArgs, options::OPT_L);
Args.AddAllArgs(CmdArgs, options::OPT_T_Group);
Args.AddAllArgs(CmdArgs, options::OPT_e);
Args.AddAllArgs(CmdArgs, options::OPT_s);
Args.AddAllArgs(CmdArgs, options::OPT_t);
Args.AddAllArgs(CmdArgs, options::OPT_Z_Flag);
Args.AddAllArgs(CmdArgs, options::OPT_r);
AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs);
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nodefaultlibs)) {
if (D.CCCIsCXX) {
getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);
CmdArgs.push_back("-lm");
}
// FIXME: For some reason GCC passes -lgcc and -lgcc_s before adding
// the default system libraries. Just mimic this for now.
if (Args.hasArg(options::OPT_static)) {
CmdArgs.push_back("-lgcc_eh");
} else {
CmdArgs.push_back("--as-needed");
CmdArgs.push_back("-lgcc_s");
CmdArgs.push_back("--no-as-needed");
}
CmdArgs.push_back("-lgcc");
if (Args.hasArg(options::OPT_pthread))
CmdArgs.push_back("-lpthread");
CmdArgs.push_back("-lc");
CmdArgs.push_back("-lgcc");
if (Args.hasArg(options::OPT_static)) {
CmdArgs.push_back("-lgcc_eh");
} else {
CmdArgs.push_back("--as-needed");
CmdArgs.push_back("-lgcc_s");
CmdArgs.push_back("--no-as-needed");
}
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
if (!Args.hasArg(options::OPT_shared))
CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath(
"crtend.o")));
else
CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath(
"crtendS.o")));
CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath(
"crtn.o")));
}
addProfileRT(getToolChain(), Args, CmdArgs, getToolChain().getTriple());
const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("ld"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void linuxtools::Assemble::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
// Add --32/--64 to make sure we get the format we want.
// This is incomplete
if (getToolChain().getArch() == llvm::Triple::x86) {
CmdArgs.push_back("--32");
} else if (getToolChain().getArch() == llvm::Triple::x86_64) {
CmdArgs.push_back("--64");
} else if (getToolChain().getArch() == llvm::Triple::ppc) {
CmdArgs.push_back("-a32");
CmdArgs.push_back("-mppc");
CmdArgs.push_back("-many");
} else if (getToolChain().getArch() == llvm::Triple::ppc64) {
CmdArgs.push_back("-a64");
CmdArgs.push_back("-mppc64");
CmdArgs.push_back("-many");
} else if (getToolChain().getArch() == llvm::Triple::arm) {
StringRef MArch = getToolChain().getArchName();
if (MArch == "armv7" || MArch == "armv7a" || MArch == "armv7-a")
CmdArgs.push_back("-mfpu=neon");
StringRef ARMFloatABI = getARMFloatABI(getToolChain().getDriver(), Args,
getToolChain().getTriple());
CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=" + ARMFloatABI));
Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ);
Args.AddLastArg(CmdArgs, options::OPT_mfpu_EQ);
} else if (getToolChain().getArch() == llvm::Triple::mips ||
getToolChain().getArch() == llvm::Triple::mipsel ||
getToolChain().getArch() == llvm::Triple::mips64 ||
getToolChain().getArch() == llvm::Triple::mips64el) {
StringRef CPUName;
StringRef ABIName;
getMipsCPUAndABI(Args, getToolChain(), CPUName, ABIName);
CmdArgs.push_back("-march");
CmdArgs.push_back(CPUName.data());
CmdArgs.push_back("-mabi");
CmdArgs.push_back(getGnuCompatibleMipsABIName(ABIName).data());
if (getToolChain().getArch() == llvm::Triple::mips ||
getToolChain().getArch() == llvm::Triple::mips64)
CmdArgs.push_back("-EB");
else
CmdArgs.push_back("-EL");
Arg *LastPICArg = Args.getLastArg(options::OPT_fPIC, options::OPT_fno_PIC,
options::OPT_fpic, options::OPT_fno_pic,
options::OPT_fPIE, options::OPT_fno_PIE,
options::OPT_fpie, options::OPT_fno_pie);
if (LastPICArg &&
(LastPICArg->getOption().matches(options::OPT_fPIC) ||
LastPICArg->getOption().matches(options::OPT_fpic) ||
LastPICArg->getOption().matches(options::OPT_fPIE) ||
LastPICArg->getOption().matches(options::OPT_fpie))) {
CmdArgs.push_back("-KPIC");
}
}
Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA,
options::OPT_Xassembler);
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
const InputInfo &II = *it;
CmdArgs.push_back(II.getFilename());
}
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("as"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
static void AddLibgcc(llvm::Triple Triple, const Driver &D,
ArgStringList &CmdArgs, const ArgList &Args) {
bool isAndroid = Triple.getEnvironment() == llvm::Triple::Android;
bool StaticLibgcc = Args.hasArg(options::OPT_static_libgcc) ||
Args.hasArg(options::OPT_static);
if (!D.CCCIsCXX)
CmdArgs.push_back("-lgcc");
if (StaticLibgcc || isAndroid) {
if (D.CCCIsCXX)
CmdArgs.push_back("-lgcc");
} else {
if (!D.CCCIsCXX)
CmdArgs.push_back("--as-needed");
CmdArgs.push_back("-lgcc_s");
if (!D.CCCIsCXX)
CmdArgs.push_back("--no-as-needed");
}
if (StaticLibgcc && !isAndroid)
CmdArgs.push_back("-lgcc_eh");
else if (!Args.hasArg(options::OPT_shared) && D.CCCIsCXX)
CmdArgs.push_back("-lgcc");
// According to Android ABI, we have to link with libdl if we are
// linking with non-static libgcc.
//
// NOTE: This fixes a link error on Android MIPS as well. The non-static
// libgcc for MIPS relies on _Unwind_Find_FDE and dl_iterate_phdr from libdl.
if (isAndroid && !StaticLibgcc)
CmdArgs.push_back("-ldl");
}
static bool hasMipsN32ABIArg(const ArgList &Args) {
Arg *A = Args.getLastArg(options::OPT_mabi_EQ);
return A && (A->getValue() == StringRef("n32"));
}
void linuxtools::Link::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
const toolchains::Linux& ToolChain =
static_cast<const toolchains::Linux&>(getToolChain());
const Driver &D = ToolChain.getDriver();
const bool isAndroid =
ToolChain.getTriple().getEnvironment() == llvm::Triple::Android;
ArgStringList CmdArgs;
// Silence warning for "clang -g foo.o -o foo"
Args.ClaimAllArgs(options::OPT_g_Group);
// and "clang -emit-llvm foo.o -o foo"
Args.ClaimAllArgs(options::OPT_emit_llvm);
// and for "clang -w foo.o -o foo". Other warning options are already
// handled somewhere else.
Args.ClaimAllArgs(options::OPT_w);
if (!D.SysRoot.empty())
CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
if (Args.hasArg(options::OPT_pie) && !Args.hasArg(options::OPT_shared))
CmdArgs.push_back("-pie");
if (Args.hasArg(options::OPT_rdynamic))
CmdArgs.push_back("-export-dynamic");
if (Args.hasArg(options::OPT_s))
CmdArgs.push_back("-s");
for (std::vector<std::string>::const_iterator i = ToolChain.ExtraOpts.begin(),
e = ToolChain.ExtraOpts.end();
i != e; ++i)
CmdArgs.push_back(i->c_str());
if (!Args.hasArg(options::OPT_static)) {
CmdArgs.push_back("--eh-frame-hdr");
}
CmdArgs.push_back("-m");
if (ToolChain.getArch() == llvm::Triple::x86)
CmdArgs.push_back("elf_i386");
else if (ToolChain.getArch() == llvm::Triple::aarch64)
CmdArgs.push_back("aarch64linux");
else if (ToolChain.getArch() == llvm::Triple::arm
|| ToolChain.getArch() == llvm::Triple::thumb)
CmdArgs.push_back("armelf_linux_eabi");
else if (ToolChain.getArch() == llvm::Triple::ppc)
CmdArgs.push_back("elf32ppclinux");
else if (ToolChain.getArch() == llvm::Triple::ppc64)
CmdArgs.push_back("elf64ppc");
else if (ToolChain.getArch() == llvm::Triple::mips)
CmdArgs.push_back("elf32btsmip");
else if (ToolChain.getArch() == llvm::Triple::mipsel)
CmdArgs.push_back("elf32ltsmip");
else if (ToolChain.getArch() == llvm::Triple::mips64) {
if (hasMipsN32ABIArg(Args))
CmdArgs.push_back("elf32btsmipn32");
else
CmdArgs.push_back("elf64btsmip");
}
else if (ToolChain.getArch() == llvm::Triple::mips64el) {
if (hasMipsN32ABIArg(Args))
CmdArgs.push_back("elf32ltsmipn32");
else
CmdArgs.push_back("elf64ltsmip");
}
else
CmdArgs.push_back("elf_x86_64");
if (Args.hasArg(options::OPT_static)) {
if (ToolChain.getArch() == llvm::Triple::arm
|| ToolChain.getArch() == llvm::Triple::thumb)
CmdArgs.push_back("-Bstatic");
else
CmdArgs.push_back("-static");
} else if (Args.hasArg(options::OPT_shared)) {
CmdArgs.push_back("-shared");
if (isAndroid) {
CmdArgs.push_back("-Bsymbolic");
}
}
if (ToolChain.getArch() == llvm::Triple::arm ||
ToolChain.getArch() == llvm::Triple::thumb ||
(!Args.hasArg(options::OPT_static) &&
!Args.hasArg(options::OPT_shared))) {
CmdArgs.push_back("-dynamic-linker");
if (isAndroid)
CmdArgs.push_back("/system/bin/linker");
else if (ToolChain.getArch() == llvm::Triple::x86)
CmdArgs.push_back("/lib/ld-linux.so.2");
else if (ToolChain.getArch() == llvm::Triple::aarch64)
CmdArgs.push_back("/lib/ld-linux-aarch64.so.1");
else if (ToolChain.getArch() == llvm::Triple::arm ||
ToolChain.getArch() == llvm::Triple::thumb) {
if (ToolChain.getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)
CmdArgs.push_back("/lib/ld-linux-armhf.so.3");
else
CmdArgs.push_back("/lib/ld-linux.so.3");
}
else if (ToolChain.getArch() == llvm::Triple::mips ||
ToolChain.getArch() == llvm::Triple::mipsel)
CmdArgs.push_back("/lib/ld.so.1");
else if (ToolChain.getArch() == llvm::Triple::mips64 ||
ToolChain.getArch() == llvm::Triple::mips64el) {
if (hasMipsN32ABIArg(Args))
CmdArgs.push_back("/lib32/ld.so.1");
else
CmdArgs.push_back("/lib64/ld.so.1");
}
else if (ToolChain.getArch() == llvm::Triple::ppc)
CmdArgs.push_back("/lib/ld.so.1");
else if (ToolChain.getArch() == llvm::Triple::ppc64)
CmdArgs.push_back("/lib64/ld64.so.1");
else
CmdArgs.push_back("/lib64/ld-linux-x86-64.so.2");
}
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
if (!isAndroid) {
const char *crt1 = NULL;
if (!Args.hasArg(options::OPT_shared)){
if (Args.hasArg(options::OPT_pie))
crt1 = "Scrt1.o";
else
crt1 = "crt1.o";
}
if (crt1)
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt1)));
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o")));
}
const char *crtbegin;
if (Args.hasArg(options::OPT_static))
crtbegin = isAndroid ? "crtbegin_static.o" : "crtbeginT.o";
else if (Args.hasArg(options::OPT_shared))
crtbegin = isAndroid ? "crtbegin_so.o" : "crtbeginS.o";
else if (Args.hasArg(options::OPT_pie))
crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbeginS.o";
else
crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbegin.o";
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtbegin)));
// Add crtfastmath.o if available and fast math is enabled.
ToolChain.AddFastMathRuntimeIfAvailable(Args, CmdArgs);
}
Args.AddAllArgs(CmdArgs, options::OPT_L);
const ToolChain::path_list Paths = ToolChain.getFilePaths();
for (ToolChain::path_list::const_iterator i = Paths.begin(), e = Paths.end();
i != e; ++i)
CmdArgs.push_back(Args.MakeArgString(StringRef("-L") + *i));
// Tell the linker to load the plugin. This has to come before AddLinkerInputs
// as gold requires -plugin to come before any -plugin-opt that -Wl might
// forward.
if (D.IsUsingLTO(Args) || Args.hasArg(options::OPT_use_gold_plugin)) {
CmdArgs.push_back("-plugin");
std::string Plugin = ToolChain.getDriver().Dir + "/../lib/LLVMgold.so";
CmdArgs.push_back(Args.MakeArgString(Plugin));
// Try to pass driver level flags relevant to LTO code generation down to
// the plugin.
// Handle architecture-specific flags for selecting CPU variants.
if (ToolChain.getArch() == llvm::Triple::x86 ||
ToolChain.getArch() == llvm::Triple::x86_64)
CmdArgs.push_back(
Args.MakeArgString(Twine("-plugin-opt=mcpu=") +
getX86TargetCPU(Args, ToolChain.getTriple())));
else if (ToolChain.getArch() == llvm::Triple::arm ||
ToolChain.getArch() == llvm::Triple::thumb)
CmdArgs.push_back(
Args.MakeArgString(Twine("-plugin-opt=mcpu=") +
getARMTargetCPU(Args, ToolChain.getTriple())));
// FIXME: Factor out logic for MIPS, PPC, and other targets to support this
// as well.
}
if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle))
CmdArgs.push_back("--no-demangle");
AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs);
SanitizerArgs Sanitize(D, Args);
// Call these before we add the C++ ABI library.
if (Sanitize.needsUbsanRt())
addUbsanRTLinux(getToolChain(), Args, CmdArgs);
if (Sanitize.needsAsanRt())
addAsanRTLinux(getToolChain(), Args, CmdArgs);
if (Sanitize.needsTsanRt())
addTsanRTLinux(getToolChain(), Args, CmdArgs);
if (Sanitize.needsMsanRt())
addMsanRTLinux(getToolChain(), Args, CmdArgs);
if (D.CCCIsCXX &&
!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nodefaultlibs)) {
bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) &&
!Args.hasArg(options::OPT_static);
if (OnlyLibstdcxxStatic)
CmdArgs.push_back("-Bstatic");
ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
if (OnlyLibstdcxxStatic)
CmdArgs.push_back("-Bdynamic");
CmdArgs.push_back("-lm");
}
if (!Args.hasArg(options::OPT_nostdlib)) {
if (!Args.hasArg(options::OPT_nodefaultlibs)) {
if (Args.hasArg(options::OPT_static))
CmdArgs.push_back("--start-group");
bool OpenMP = Args.hasArg(options::OPT_fopenmp);
if (OpenMP) {
CmdArgs.push_back("-lgomp");
// FIXME: Exclude this for platforms whith libgomp that doesn't require
// librt. Most modern Linux platfroms require it, but some may not.
CmdArgs.push_back("-lrt");
}
AddLibgcc(ToolChain.getTriple(), D, CmdArgs, Args);
if (Args.hasArg(options::OPT_pthread) ||
Args.hasArg(options::OPT_pthreads) || OpenMP)
CmdArgs.push_back("-lpthread");
CmdArgs.push_back("-lc");
if (Args.hasArg(options::OPT_static))
CmdArgs.push_back("--end-group");
else
AddLibgcc(ToolChain.getTriple(), D, CmdArgs, Args);
}
if (!Args.hasArg(options::OPT_nostartfiles)) {
const char *crtend;
if (Args.hasArg(options::OPT_shared))
crtend = isAndroid ? "crtend_so.o" : "crtendS.o";
else if (Args.hasArg(options::OPT_pie))
crtend = isAndroid ? "crtend_android.o" : "crtendS.o";
else
crtend = isAndroid ? "crtend_android.o" : "crtend.o";
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtend)));
if (!isAndroid)
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
}
}
addProfileRT(getToolChain(), Args, CmdArgs, getToolChain().getTriple());
C.addCommand(new Command(JA, *this, ToolChain.Linker.c_str(), CmdArgs));
}
void minix::Assemble::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA,
options::OPT_Xassembler);
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
const InputInfo &II = *it;
CmdArgs.push_back(II.getFilename());
}
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("as"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void minix::Link::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
const Driver &D = getToolChain().getDriver();
ArgStringList CmdArgs;
if (Output.isFilename()) {
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
} else {
assert(Output.isNothing() && "Invalid output.");
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crt1.o")));
CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crti.o")));
CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o")));
CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o")));
}
Args.AddAllArgs(CmdArgs, options::OPT_L);
Args.AddAllArgs(CmdArgs, options::OPT_T_Group);
Args.AddAllArgs(CmdArgs, options::OPT_e);
AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs);
addProfileRT(getToolChain(), Args, CmdArgs, getToolChain().getTriple());
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nodefaultlibs)) {
if (D.CCCIsCXX) {
getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);
CmdArgs.push_back("-lm");
}
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
if (Args.hasArg(options::OPT_pthread))
CmdArgs.push_back("-lpthread");
CmdArgs.push_back("-lc");
CmdArgs.push_back("-lCompilerRT-Generic");
CmdArgs.push_back("-L/usr/pkg/compiler-rt/lib");
CmdArgs.push_back(
Args.MakeArgString(getToolChain().GetFilePath("crtend.o")));
}
const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("ld"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
/// DragonFly Tools
// For now, DragonFly Assemble does just about the same as for
// FreeBSD, but this may change soon.
void dragonfly::Assemble::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
// When building 32-bit code on DragonFly/pc64, we have to explicitly
// instruct as in the base system to assemble 32-bit code.
if (getToolChain().getArch() == llvm::Triple::x86)
CmdArgs.push_back("--32");
Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA,
options::OPT_Xassembler);
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
const InputInfo &II = *it;
CmdArgs.push_back(II.getFilename());
}
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("as"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void dragonfly::Link::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
const Driver &D = getToolChain().getDriver();
ArgStringList CmdArgs;
if (!D.SysRoot.empty())
CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
if (Args.hasArg(options::OPT_static)) {
CmdArgs.push_back("-Bstatic");
} else {
if (Args.hasArg(options::OPT_shared))
CmdArgs.push_back("-Bshareable");
else {
CmdArgs.push_back("-dynamic-linker");
CmdArgs.push_back("/usr/libexec/ld-elf.so.2");
}
}
// When building 32-bit code on DragonFly/pc64, we have to explicitly
// instruct ld in the base system to link 32-bit code.
if (getToolChain().getArch() == llvm::Triple::x86) {
CmdArgs.push_back("-m");
CmdArgs.push_back("elf_i386");
}
if (Output.isFilename()) {
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
} else {
assert(Output.isNothing() && "Invalid output.");
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
if (!Args.hasArg(options::OPT_shared)) {
CmdArgs.push_back(
Args.MakeArgString(getToolChain().GetFilePath("crt1.o")));
CmdArgs.push_back(
Args.MakeArgString(getToolChain().GetFilePath("crti.o")));
CmdArgs.push_back(
Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o")));
} else {
CmdArgs.push_back(
Args.MakeArgString(getToolChain().GetFilePath("crti.o")));
CmdArgs.push_back(
Args.MakeArgString(getToolChain().GetFilePath("crtbeginS.o")));
}
}
Args.AddAllArgs(CmdArgs, options::OPT_L);
Args.AddAllArgs(CmdArgs, options::OPT_T_Group);
Args.AddAllArgs(CmdArgs, options::OPT_e);
AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs);
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nodefaultlibs)) {
// FIXME: GCC passes on -lgcc, -lgcc_pic and a whole lot of
// rpaths
CmdArgs.push_back("-L/usr/lib/gcc41");
if (!Args.hasArg(options::OPT_static)) {
CmdArgs.push_back("-rpath");
CmdArgs.push_back("/usr/lib/gcc41");
CmdArgs.push_back("-rpath-link");
CmdArgs.push_back("/usr/lib/gcc41");
CmdArgs.push_back("-rpath");
CmdArgs.push_back("/usr/lib");
CmdArgs.push_back("-rpath-link");
CmdArgs.push_back("/usr/lib");
}
if (D.CCCIsCXX) {
getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);
CmdArgs.push_back("-lm");
}
if (Args.hasArg(options::OPT_shared)) {
CmdArgs.push_back("-lgcc_pic");
} else {
CmdArgs.push_back("-lgcc");
}
if (Args.hasArg(options::OPT_pthread))
CmdArgs.push_back("-lpthread");
if (!Args.hasArg(options::OPT_nolibc)) {
CmdArgs.push_back("-lc");
}
if (Args.hasArg(options::OPT_shared)) {
CmdArgs.push_back("-lgcc_pic");
} else {
CmdArgs.push_back("-lgcc");
}
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
if (!Args.hasArg(options::OPT_shared))
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crtend.o")));
else
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crtendS.o")));
CmdArgs.push_back(Args.MakeArgString(
getToolChain().GetFilePath("crtn.o")));
}
addProfileRT(getToolChain(), Args, CmdArgs, getToolChain().getTriple());
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("ld"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}
void visualstudio::Link::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
if (Output.isFilename()) {
CmdArgs.push_back(Args.MakeArgString(std::string("-out:") +
Output.getFilename()));
} else {
assert(Output.isNothing() && "Invalid output.");
}
if (!Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nostartfiles)) {
CmdArgs.push_back("-defaultlib:libcmt");
}
CmdArgs.push_back("-nologo");
Args.AddAllArgValues(CmdArgs, options::OPT_l);
// Add filenames immediately.
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
if (it->isFilename())
CmdArgs.push_back(it->getFilename());
}
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath("link.exe"));
C.addCommand(new Command(JA, *this, Exec, CmdArgs));
}