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gerrit-public.fairphone.software / platform / external / clang / 48aef3625a0a80d044b40f872355990134ee7598 / . / lib / Driver / ToolChains.cpp
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//===--- ToolChains.cpp - ToolChain Implementations -----------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "ToolChains.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/HostInfo.h"
#include "clang/Driver/OptTable.h"
#include "clang/Driver/Option.h"
#include "clang/Driver/Options.h"
#include "clang/Basic/Version.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/system_error.h"
#include <cstdlib> // ::getenv
using namespace clang::driver;
using namespace clang::driver::toolchains;
/// Darwin - Darwin tool chain for i386 and x86_64.
Darwin::Darwin(const HostInfo &Host, const llvm::Triple& Triple)
: ToolChain(Host, Triple), TargetInitialized(false)
{
// Compute the initial Darwin version based on the host.
bool HadExtra;
std::string OSName = Triple.getOSName();
if (!Driver::GetReleaseVersion(&OSName[6],
DarwinVersion[0], DarwinVersion[1],
DarwinVersion[2], HadExtra))
getDriver().Diag(clang::diag::err_drv_invalid_darwin_version) << OSName;
llvm::raw_string_ostream(MacosxVersionMin)
<< "10." << std::max(0, (int)DarwinVersion[0] - 4) << '.'
<< DarwinVersion[1];
}
types::ID Darwin::LookupTypeForExtension(const char *Ext) const {
types::ID Ty = types::lookupTypeForExtension(Ext);
// Darwin always preprocesses assembly files (unless -x is used explicitly).
if (Ty == types::TY_PP_Asm)
return types::TY_Asm;
return Ty;
}
bool Darwin::HasNativeLLVMSupport() const {
return true;
}
// FIXME: Can we tablegen this?
static const char *GetArmArchForMArch(llvm::StringRef Value) {
if (Value == "armv6k")
return "armv6";
if (Value == "armv5tej")
return "armv5";
if (Value == "xscale")
return "xscale";
if (Value == "armv4t")
return "armv4t";
if (Value == "armv7" || Value == "armv7-a" || Value == "armv7-r" ||
Value == "armv7-m" || Value == "armv7a" || Value == "armv7r" ||
Value == "armv7m")
return "armv7";
return 0;
}
// FIXME: Can we tablegen this?
static const char *GetArmArchForMCpu(llvm::StringRef Value) {
if (Value == "arm10tdmi" || Value == "arm1020t" || Value == "arm9e" ||
Value == "arm946e-s" || Value == "arm966e-s" ||
Value == "arm968e-s" || Value == "arm10e" ||
Value == "arm1020e" || Value == "arm1022e" || Value == "arm926ej-s" ||
Value == "arm1026ej-s")
return "armv5";
if (Value == "xscale")
return "xscale";
if (Value == "arm1136j-s" || Value == "arm1136jf-s" ||
Value == "arm1176jz-s" || Value == "arm1176jzf-s")
return "armv6";
if (Value == "cortex-a8" || Value == "cortex-r4" || Value == "cortex-m3")
return "armv7";
return 0;
}
llvm::StringRef Darwin::getDarwinArchName(const ArgList &Args) const {
switch (getTriple().getArch()) {
default:
return getArchName();
case llvm::Triple::arm: {
if (const Arg *A = Args.getLastArg(options::OPT_march_EQ))
if (const char *Arch = GetArmArchForMArch(A->getValue(Args)))
return Arch;
if (const Arg *A = Args.getLastArg(options::OPT_mcpu_EQ))
if (const char *Arch = GetArmArchForMCpu(A->getValue(Args)))
return Arch;
return "arm";
}
}
}
DarwinGCC::DarwinGCC(const HostInfo &Host, const llvm::Triple& Triple)
: Darwin(Host, Triple)
{
// We can only work with 4.2.1 currently.
GCCVersion[0] = 4;
GCCVersion[1] = 2;
GCCVersion[2] = 1;
// Set up the tool chain paths to match gcc.
ToolChainDir = "i686-apple-darwin";
ToolChainDir += llvm::utostr(DarwinVersion[0]);
ToolChainDir += "/";
ToolChainDir += llvm::utostr(GCCVersion[0]);
ToolChainDir += '.';
ToolChainDir += llvm::utostr(GCCVersion[1]);
ToolChainDir += '.';
ToolChainDir += llvm::utostr(GCCVersion[2]);
// Try the next major version if that tool chain dir is invalid.
std::string Tmp = "/usr/lib/gcc/" + ToolChainDir;
bool Exists;
if (llvm::sys::fs::exists(Tmp, Exists) || Exists) {
std::string Next = "i686-apple-darwin";
Next += llvm::utostr(DarwinVersion[0] + 1);
Next += "/";
Next += llvm::utostr(GCCVersion[0]);
Next += '.';
Next += llvm::utostr(GCCVersion[1]);
Next += '.';
Next += llvm::utostr(GCCVersion[2]);
// Use that if it exists, otherwise hope the user isn't linking.
//
// FIXME: Drop dependency on gcc's tool chain.
Tmp = "/usr/lib/gcc/" + Next;
if (!llvm::sys::fs::exists(Tmp, Exists) && Exists)
ToolChainDir = Next;
}
std::string Path;
if (getArchName() == "x86_64") {
Path = getDriver().Dir;
Path += "/../lib/gcc/";
Path += ToolChainDir;
Path += "/x86_64";
getFilePaths().push_back(Path);
Path = "/usr/lib/gcc/";
Path += ToolChainDir;
Path += "/x86_64";
getFilePaths().push_back(Path);
}
Path = getDriver().Dir;
Path += "/../lib/gcc/";
Path += ToolChainDir;
getFilePaths().push_back(Path);
Path = "/usr/lib/gcc/";
Path += ToolChainDir;
getFilePaths().push_back(Path);
Path = getDriver().Dir;
Path += "/../libexec/gcc/";
Path += ToolChainDir;
getProgramPaths().push_back(Path);
Path = "/usr/libexec/gcc/";
Path += ToolChainDir;
getProgramPaths().push_back(Path);
getProgramPaths().push_back(getDriver().getInstalledDir());
if (getDriver().getInstalledDir() != getDriver().Dir)
getProgramPaths().push_back(getDriver().Dir);
}
Darwin::~Darwin() {
// Free tool implementations.
for (llvm::DenseMap<unsigned, Tool*>::iterator
it = Tools.begin(), ie = Tools.end(); it != ie; ++it)
delete it->second;
}
std::string Darwin::ComputeEffectiveClangTriple(const ArgList &Args) const {
llvm::Triple Triple(ComputeLLVMTriple(Args));
// If the target isn't initialized (e.g., an unknown Darwin platform, return
// the default triple).
if (!isTargetInitialized())
return Triple.getTriple();
unsigned Version[3];
getTargetVersion(Version);
// Mangle the target version into the OS triple component. For historical
// reasons that make little sense, the version passed here is the "darwin"
// version, which drops the 10 and offsets by 4. See inverse code when
// setting the OS version preprocessor define.
if (!isTargetIPhoneOS()) {
Version[0] = Version[1] + 4;
Version[1] = Version[2];
Version[2] = 0;
} else {
// Use the environment to communicate that we are targetting iPhoneOS.
Triple.setEnvironmentName("iphoneos");
}
llvm::SmallString<16> Str;
llvm::raw_svector_ostream(Str) << "darwin" << Version[0]
<< "." << Version[1] << "." << Version[2];
Triple.setOSName(Str.str());
return Triple.getTriple();
}
Tool &Darwin::SelectTool(const Compilation &C, const JobAction &JA) const {
Action::ActionClass Key;
if (getDriver().ShouldUseClangCompiler(C, JA, getTriple()))
Key = Action::AnalyzeJobClass;
else
Key = JA.getKind();
// FIXME: This doesn't belong here, but ideally we will support static soon
// anyway.
bool HasStatic = (C.getArgs().hasArg(options::OPT_mkernel) ||
C.getArgs().hasArg(options::OPT_static) ||
C.getArgs().hasArg(options::OPT_fapple_kext));
bool IsIADefault = IsIntegratedAssemblerDefault() && !HasStatic;
bool UseIntegratedAs = C.getArgs().hasFlag(options::OPT_integrated_as,
options::OPT_no_integrated_as,
IsIADefault);
Tool *&T = Tools[Key];
if (!T) {
switch (Key) {
case Action::InputClass:
case Action::BindArchClass:
assert(0 && "Invalid tool kind.");
case Action::PreprocessJobClass:
T = new tools::darwin::Preprocess(*this); break;
case Action::AnalyzeJobClass:
T = new tools::Clang(*this); break;
case Action::PrecompileJobClass:
case Action::CompileJobClass:
T = new tools::darwin::Compile(*this); break;
case Action::AssembleJobClass: {
if (UseIntegratedAs)
T = new tools::ClangAs(*this);
else
T = new tools::darwin::Assemble(*this);
break;
}
case Action::LinkJobClass:
T = new tools::darwin::Link(*this); break;
case Action::LipoJobClass:
T = new tools::darwin::Lipo(*this); break;
case Action::DsymutilJobClass:
T = new tools::darwin::Dsymutil(*this); break;
}
}
return *T;
}
void DarwinGCC::AddLinkSearchPathArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
std::string Tmp;
// FIXME: Derive these correctly.
if (getArchName() == "x86_64") {
CmdArgs.push_back(Args.MakeArgString("-L/usr/lib/gcc/" + ToolChainDir +
"/x86_64"));
// Intentionally duplicated for (temporary) gcc bug compatibility.
CmdArgs.push_back(Args.MakeArgString("-L/usr/lib/gcc/" + ToolChainDir +
"/x86_64"));
}
CmdArgs.push_back(Args.MakeArgString("-L/usr/lib/" + ToolChainDir));
Tmp = getDriver().Dir + "/../lib/gcc/" + ToolChainDir;
bool Exists;
if (!llvm::sys::fs::exists(Tmp, Exists) && Exists)
CmdArgs.push_back(Args.MakeArgString("-L" + Tmp));
Tmp = getDriver().Dir + "/../lib/gcc";
if (!llvm::sys::fs::exists(Tmp, Exists) && Exists)
CmdArgs.push_back(Args.MakeArgString("-L" + Tmp));
CmdArgs.push_back(Args.MakeArgString("-L/usr/lib/gcc/" + ToolChainDir));
// Intentionally duplicated for (temporary) gcc bug compatibility.
CmdArgs.push_back(Args.MakeArgString("-L/usr/lib/gcc/" + ToolChainDir));
Tmp = getDriver().Dir + "/../lib/" + ToolChainDir;
if (!llvm::sys::fs::exists(Tmp, Exists) && Exists)
CmdArgs.push_back(Args.MakeArgString("-L" + Tmp));
Tmp = getDriver().Dir + "/../lib";
if (!llvm::sys::fs::exists(Tmp, Exists) && Exists)
CmdArgs.push_back(Args.MakeArgString("-L" + Tmp));
CmdArgs.push_back(Args.MakeArgString("-L/usr/lib/gcc/" + ToolChainDir +
"/../../../" + ToolChainDir));
CmdArgs.push_back(Args.MakeArgString("-L/usr/lib/gcc/" + ToolChainDir +
"/../../.."));
}
void DarwinGCC::AddLinkRuntimeLibArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
// Note that this routine is only used for targetting OS X.
// Derived from libgcc and lib specs but refactored.
if (Args.hasArg(options::OPT_static)) {
CmdArgs.push_back("-lgcc_static");
} else {
if (Args.hasArg(options::OPT_static_libgcc)) {
CmdArgs.push_back("-lgcc_eh");
} else if (Args.hasArg(options::OPT_miphoneos_version_min_EQ)) {
// Derived from darwin_iphoneos_libgcc spec.
if (isTargetIPhoneOS()) {
CmdArgs.push_back("-lgcc_s.1");
} else {
CmdArgs.push_back("-lgcc_s.10.5");
}
} else if (Args.hasArg(options::OPT_shared_libgcc) ||
Args.hasFlag(options::OPT_fexceptions,
options::OPT_fno_exceptions) ||
Args.hasArg(options::OPT_fgnu_runtime)) {
// FIXME: This is probably broken on 10.3?
if (isMacosxVersionLT(10, 5))
CmdArgs.push_back("-lgcc_s.10.4");
else if (isMacosxVersionLT(10, 6))
CmdArgs.push_back("-lgcc_s.10.5");
} else {
if (isMacosxVersionLT(10, 3, 9))
; // Do nothing.
else if (isMacosxVersionLT(10, 5))
CmdArgs.push_back("-lgcc_s.10.4");
else if (isMacosxVersionLT(10, 6))
CmdArgs.push_back("-lgcc_s.10.5");
}
if (isTargetIPhoneOS() || isMacosxVersionLT(10, 6)) {
CmdArgs.push_back("-lgcc");
CmdArgs.push_back("-lSystem");
} else {
CmdArgs.push_back("-lSystem");
CmdArgs.push_back("-lgcc");
}
}
}
DarwinClang::DarwinClang(const HostInfo &Host, const llvm::Triple& Triple)
: Darwin(Host, Triple)
{
getProgramPaths().push_back(getDriver().getInstalledDir());
if (getDriver().getInstalledDir() != getDriver().Dir)
getProgramPaths().push_back(getDriver().Dir);
// We expect 'as', 'ld', etc. to be adjacent to our install dir.
getProgramPaths().push_back(getDriver().getInstalledDir());
if (getDriver().getInstalledDir() != getDriver().Dir)
getProgramPaths().push_back(getDriver().Dir);
// For fallback, we need to know how to find the GCC cc1 executables, so we
// also add the GCC libexec paths. This is legiy code that can be removed once
// fallback is no longer useful.
std::string ToolChainDir = "i686-apple-darwin";
ToolChainDir += llvm::utostr(DarwinVersion[0]);
ToolChainDir += "/4.2.1";
std::string Path = getDriver().Dir;
Path += "/../libexec/gcc/";
Path += ToolChainDir;
getProgramPaths().push_back(Path);
Path = "/usr/libexec/gcc/";
Path += ToolChainDir;
getProgramPaths().push_back(Path);
}
void DarwinClang::AddLinkSearchPathArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
// The Clang toolchain uses explicit paths for internal libraries.
// Unfortunately, we still might depend on a few of the libraries that are
// only available in the gcc library directory (in particular
// libstdc++.dylib). For now, hardcode the path to the known install location.
llvm::sys::Path P(getDriver().Dir);
P.eraseComponent(); // .../usr/bin -> ../usr
P.appendComponent("lib");
P.appendComponent("gcc");
switch (getTriple().getArch()) {
default:
assert(0 && "Invalid Darwin arch!");
case llvm::Triple::x86:
case llvm::Triple::x86_64:
P.appendComponent("i686-apple-darwin10");
break;
case llvm::Triple::arm:
case llvm::Triple::thumb:
P.appendComponent("arm-apple-darwin10");
break;
case llvm::Triple::ppc:
case llvm::Triple::ppc64:
P.appendComponent("powerpc-apple-darwin10");
break;
}
P.appendComponent("4.2.1");
// Determine the arch specific GCC subdirectory.
const char *ArchSpecificDir = 0;
switch (getTriple().getArch()) {
default:
break;
case llvm::Triple::arm:
case llvm::Triple::thumb: {
std::string Triple = ComputeLLVMTriple(Args);
llvm::StringRef TripleStr = Triple;
if (TripleStr.startswith("armv5") || TripleStr.startswith("thumbv5"))
ArchSpecificDir = "v5";
else if (TripleStr.startswith("armv6") || TripleStr.startswith("thumbv6"))
ArchSpecificDir = "v6";
else if (TripleStr.startswith("armv7") || TripleStr.startswith("thumbv7"))
ArchSpecificDir = "v7";
break;
}
case llvm::Triple::ppc64:
ArchSpecificDir = "ppc64";
break;
case llvm::Triple::x86_64:
ArchSpecificDir = "x86_64";
break;
}
if (ArchSpecificDir) {
P.appendComponent(ArchSpecificDir);
bool Exists;
if (!llvm::sys::fs::exists(P.str(), Exists) && Exists)
CmdArgs.push_back(Args.MakeArgString("-L" + P.str()));
P.eraseComponent();
}
bool Exists;
if (!llvm::sys::fs::exists(P.str(), Exists) && Exists)
CmdArgs.push_back(Args.MakeArgString("-L" + P.str()));
}
void DarwinClang::AddLinkRuntimeLibArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
// Darwin doesn't support real static executables, don't link any runtime
// libraries with -static.
if (Args.hasArg(options::OPT_static))
return;
// Reject -static-libgcc for now, we can deal with this when and if someone
// cares. This is useful in situations where someone wants to statically link
// something like libstdc++, and needs its runtime support routines.
if (const Arg *A = Args.getLastArg(options::OPT_static_libgcc)) {
getDriver().Diag(clang::diag::err_drv_unsupported_opt)
<< A->getAsString(Args);
return;
}
// Otherwise link libSystem, then the dynamic runtime library, and finally any
// target specific static runtime library.
CmdArgs.push_back("-lSystem");
// Select the dynamic runtime library and the target specific static library.
const char *DarwinStaticLib = 0;
if (isTargetIPhoneOS()) {
CmdArgs.push_back("-lgcc_s.1");
// We may need some static functions for armv6/thumb which are required to
// be in the same linkage unit as their caller.
if (getDarwinArchName(Args) == "armv6")
DarwinStaticLib = "libclang_rt.armv6.a";
} else {
// The dynamic runtime library was merged with libSystem for 10.6 and
// beyond; only 10.4 and 10.5 need an additional runtime library.
if (isMacosxVersionLT(10, 5))
CmdArgs.push_back("-lgcc_s.10.4");
else if (isMacosxVersionLT(10, 6))
CmdArgs.push_back("-lgcc_s.10.5");
// For OS X, we thought we would only need a static runtime library when
// targetting 10.4, to provide versions of the static functions which were
// omitted from 10.4.dylib.
//
// Unfortunately, that turned out to not be true, because Darwin system
// headers can still use eprintf on i386, and it is not exported from
// libSystem. Therefore, we still must provide a runtime library just for
// the tiny tiny handful of projects that *might* use that symbol.
if (isMacosxVersionLT(10, 5)) {
DarwinStaticLib = "libclang_rt.10.4.a";
} else {
if (getTriple().getArch() == llvm::Triple::x86)
DarwinStaticLib = "libclang_rt.eprintf.a";
}
}
/// Add the target specific static library, if needed.
if (DarwinStaticLib) {
llvm::sys::Path P(getDriver().ResourceDir);
P.appendComponent("lib");
P.appendComponent("darwin");
P.appendComponent(DarwinStaticLib);
// For now, allow missing resource libraries to support developers who may
// not have compiler-rt checked out or integrated into their build.
bool Exists;
if (!llvm::sys::fs::exists(P.str(), Exists) && Exists)
CmdArgs.push_back(Args.MakeArgString(P.str()));
}
}
void Darwin::AddDeploymentTarget(DerivedArgList &Args) const {
const OptTable &Opts = getDriver().getOpts();
Arg *OSXVersion = Args.getLastArg(options::OPT_mmacosx_version_min_EQ);
Arg *iPhoneVersion = Args.getLastArg(options::OPT_miphoneos_version_min_EQ);
if (OSXVersion && iPhoneVersion) {
getDriver().Diag(clang::diag::err_drv_argument_not_allowed_with)
<< OSXVersion->getAsString(Args)
<< iPhoneVersion->getAsString(Args);
iPhoneVersion = 0;
} else if (!OSXVersion && !iPhoneVersion) {
// If neither OS X nor iPhoneOS targets were specified, check for
// environment defines.
const char *OSXTarget = ::getenv("MACOSX_DEPLOYMENT_TARGET");
const char *iPhoneOSTarget = ::getenv("IPHONEOS_DEPLOYMENT_TARGET");
// Ignore empty strings.
if (OSXTarget && OSXTarget[0] == '\0')
OSXTarget = 0;
if (iPhoneOSTarget && iPhoneOSTarget[0] == '\0')
iPhoneOSTarget = 0;
// Diagnose conflicting deployment targets, and choose default platform
// based on the tool chain.
//
// FIXME: Don't hardcode default here.
if (OSXTarget && iPhoneOSTarget) {
// FIXME: We should see if we can get away with warning or erroring on
// this. Perhaps put under -pedantic?
if (getTriple().getArch() == llvm::Triple::arm ||
getTriple().getArch() == llvm::Triple::thumb)
OSXTarget = 0;
else
iPhoneOSTarget = 0;
}
if (OSXTarget) {
const Option *O = Opts.getOption(options::OPT_mmacosx_version_min_EQ);
OSXVersion = Args.MakeJoinedArg(0, O, OSXTarget);
Args.append(OSXVersion);
} else if (iPhoneOSTarget) {
const Option *O = Opts.getOption(options::OPT_miphoneos_version_min_EQ);
iPhoneVersion = Args.MakeJoinedArg(0, O, iPhoneOSTarget);
Args.append(iPhoneVersion);
} else {
// Otherwise, assume we are targeting OS X.
const Option *O = Opts.getOption(options::OPT_mmacosx_version_min_EQ);
OSXVersion = Args.MakeJoinedArg(0, O, MacosxVersionMin);
Args.append(OSXVersion);
}
}
// Set the tool chain target information.
unsigned Major, Minor, Micro;
bool HadExtra;
if (OSXVersion) {
assert(!iPhoneVersion && "Unknown target platform!");
if (!Driver::GetReleaseVersion(OSXVersion->getValue(Args), Major, Minor,
Micro, HadExtra) || HadExtra ||
Major != 10 || Minor >= 10 || Micro >= 10)
getDriver().Diag(clang::diag::err_drv_invalid_version_number)
<< OSXVersion->getAsString(Args);
} else {
assert(iPhoneVersion && "Unknown target platform!");
if (!Driver::GetReleaseVersion(iPhoneVersion->getValue(Args), Major, Minor,
Micro, HadExtra) || HadExtra ||
Major >= 10 || Minor >= 100 || Micro >= 100)
getDriver().Diag(clang::diag::err_drv_invalid_version_number)
<< iPhoneVersion->getAsString(Args);
}
setTarget(iPhoneVersion, Major, Minor, Micro);
}
void DarwinClang::AddCXXStdlibLibArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
CXXStdlibType Type = GetCXXStdlibType(Args);
switch (Type) {
case ToolChain::CST_Libcxx:
CmdArgs.push_back("-lc++");
break;
case ToolChain::CST_Libstdcxx: {
// Unfortunately, -lstdc++ doesn't always exist in the standard search path;
// it was previously found in the gcc lib dir. However, for all the Darwin
// platforms we care about it was -lstdc++.6, so we search for that
// explicitly if we can't see an obvious -lstdc++ candidate.
// Check in the sysroot first.
bool Exists;
if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) {
llvm::sys::Path P(A->getValue(Args));
P.appendComponent("usr");
P.appendComponent("lib");
P.appendComponent("libstdc++.dylib");
if (llvm::sys::fs::exists(P.str(), Exists) || !Exists) {
P.eraseComponent();
P.appendComponent("libstdc++.6.dylib");
if (!llvm::sys::fs::exists(P.str(), Exists) && Exists) {
CmdArgs.push_back(Args.MakeArgString(P.str()));
return;
}
}
}
// Otherwise, look in the root.
if ((llvm::sys::fs::exists("/usr/lib/libstdc++.dylib", Exists) || !Exists)&&
(!llvm::sys::fs::exists("/usr/lib/libstdc++.6.dylib", Exists) && Exists)){
CmdArgs.push_back("/usr/lib/libstdc++.6.dylib");
return;
}
// Otherwise, let the linker search.
CmdArgs.push_back("-lstdc++");
break;
}
}
}
void DarwinClang::AddCCKextLibArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
// For Darwin platforms, use the compiler-rt-based support library
// instead of the gcc-provided one (which is also incidentally
// only present in the gcc lib dir, which makes it hard to find).
llvm::sys::Path P(getDriver().ResourceDir);
P.appendComponent("lib");
P.appendComponent("darwin");
P.appendComponent("libclang_rt.cc_kext.a");
// For now, allow missing resource libraries to support developers who may
// not have compiler-rt checked out or integrated into their build.
bool Exists;
if (!llvm::sys::fs::exists(P.str(), Exists) && Exists)
CmdArgs.push_back(Args.MakeArgString(P.str()));
}
DerivedArgList *Darwin::TranslateArgs(const DerivedArgList &Args,
const char *BoundArch) const {
DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs());
const OptTable &Opts = getDriver().getOpts();
// FIXME: We really want to get out of the tool chain level argument
// translation business, as it makes the driver functionality much
// more opaque. For now, we follow gcc closely solely for the
// purpose of easily achieving feature parity & testability. Once we
// have something that works, we should reevaluate each translation
// and try to push it down into tool specific logic.
for (ArgList::const_iterator it = Args.begin(),
ie = Args.end(); it != ie; ++it) {
Arg *A = *it;
if (A->getOption().matches(options::OPT_Xarch__)) {
// FIXME: Canonicalize name.
if (getArchName() != A->getValue(Args, 0))
continue;
unsigned Index = Args.getBaseArgs().MakeIndex(A->getValue(Args, 1));
unsigned Prev = Index;
Arg *XarchArg = Opts.ParseOneArg(Args, Index);
// If the argument parsing failed or more than one argument was
// consumed, the -Xarch_ argument's parameter tried to consume
// extra arguments. Emit an error and ignore.
//
// We also want to disallow any options which would alter the
// driver behavior; that isn't going to work in our model. We
// use isDriverOption() as an approximation, although things
// like -O4 are going to slip through.
if (!XarchArg || Index > Prev + 1 ||
XarchArg->getOption().isDriverOption()) {
getDriver().Diag(clang::diag::err_drv_invalid_Xarch_argument)
<< A->getAsString(Args);
continue;
}
XarchArg->setBaseArg(A);
A = XarchArg;
DAL->AddSynthesizedArg(A);
}
// Sob. These is strictly gcc compatible for the time being. Apple
// gcc translates options twice, which means that self-expanding
// options add duplicates.
switch ((options::ID) A->getOption().getID()) {
default:
DAL->append(A);
break;
case options::OPT_mkernel:
case options::OPT_fapple_kext:
DAL->append(A);
DAL->AddFlagArg(A, Opts.getOption(options::OPT_static));
DAL->AddFlagArg(A, Opts.getOption(options::OPT_static));
break;
case options::OPT_dependency_file:
DAL->AddSeparateArg(A, Opts.getOption(options::OPT_MF),
A->getValue(Args));
break;
case options::OPT_gfull:
DAL->AddFlagArg(A, Opts.getOption(options::OPT_g_Flag));
DAL->AddFlagArg(A,
Opts.getOption(options::OPT_fno_eliminate_unused_debug_symbols));
break;
case options::OPT_gused:
DAL->AddFlagArg(A, Opts.getOption(options::OPT_g_Flag));
DAL->AddFlagArg(A,
Opts.getOption(options::OPT_feliminate_unused_debug_symbols));
break;
case options::OPT_fterminated_vtables:
case options::OPT_findirect_virtual_calls:
DAL->AddFlagArg(A, Opts.getOption(options::OPT_fapple_kext));
DAL->AddFlagArg(A, Opts.getOption(options::OPT_static));
break;
case options::OPT_shared:
DAL->AddFlagArg(A, Opts.getOption(options::OPT_dynamiclib));
break;
case options::OPT_fconstant_cfstrings:
DAL->AddFlagArg(A, Opts.getOption(options::OPT_mconstant_cfstrings));
break;
case options::OPT_fno_constant_cfstrings:
DAL->AddFlagArg(A, Opts.getOption(options::OPT_mno_constant_cfstrings));
break;
case options::OPT_Wnonportable_cfstrings:
DAL->AddFlagArg(A,
Opts.getOption(options::OPT_mwarn_nonportable_cfstrings));
break;
case options::OPT_Wno_nonportable_cfstrings:
DAL->AddFlagArg(A,
Opts.getOption(options::OPT_mno_warn_nonportable_cfstrings));
break;
case options::OPT_fpascal_strings:
DAL->AddFlagArg(A, Opts.getOption(options::OPT_mpascal_strings));
break;
case options::OPT_fno_pascal_strings:
DAL->AddFlagArg(A, Opts.getOption(options::OPT_mno_pascal_strings));
break;
}
}
if (getTriple().getArch() == llvm::Triple::x86 ||
getTriple().getArch() == llvm::Triple::x86_64)
if (!Args.hasArgNoClaim(options::OPT_mtune_EQ))
DAL->AddJoinedArg(0, Opts.getOption(options::OPT_mtune_EQ), "core2");
// Add the arch options based on the particular spelling of -arch, to match
// how the driver driver works.
if (BoundArch) {
llvm::StringRef Name = BoundArch;
const Option *MCpu = Opts.getOption(options::OPT_mcpu_EQ);
const Option *MArch = Opts.getOption(options::OPT_march_EQ);
// This code must be kept in sync with LLVM's getArchTypeForDarwinArch,
// which defines the list of which architectures we accept.
if (Name == "ppc")
;
else if (Name == "ppc601")
DAL->AddJoinedArg(0, MCpu, "601");
else if (Name == "ppc603")
DAL->AddJoinedArg(0, MCpu, "603");
else if (Name == "ppc604")
DAL->AddJoinedArg(0, MCpu, "604");
else if (Name == "ppc604e")
DAL->AddJoinedArg(0, MCpu, "604e");
else if (Name == "ppc750")
DAL->AddJoinedArg(0, MCpu, "750");
else if (Name == "ppc7400")
DAL->AddJoinedArg(0, MCpu, "7400");
else if (Name == "ppc7450")
DAL->AddJoinedArg(0, MCpu, "7450");
else if (Name == "ppc970")
DAL->AddJoinedArg(0, MCpu, "970");
else if (Name == "ppc64")
DAL->AddFlagArg(0, Opts.getOption(options::OPT_m64));
else if (Name == "i386")
;
else if (Name == "i486")
DAL->AddJoinedArg(0, MArch, "i486");
else if (Name == "i586")
DAL->AddJoinedArg(0, MArch, "i586");
else if (Name == "i686")
DAL->AddJoinedArg(0, MArch, "i686");
else if (Name == "pentium")
DAL->AddJoinedArg(0, MArch, "pentium");
else if (Name == "pentium2")
DAL->AddJoinedArg(0, MArch, "pentium2");
else if (Name == "pentpro")
DAL->AddJoinedArg(0, MArch, "pentiumpro");
else if (Name == "pentIIm3")
DAL->AddJoinedArg(0, MArch, "pentium2");
else if (Name == "x86_64")
DAL->AddFlagArg(0, Opts.getOption(options::OPT_m64));
else if (Name == "arm")
DAL->AddJoinedArg(0, MArch, "armv4t");
else if (Name == "armv4t")
DAL->AddJoinedArg(0, MArch, "armv4t");
else if (Name == "armv5")
DAL->AddJoinedArg(0, MArch, "armv5tej");
else if (Name == "xscale")
DAL->AddJoinedArg(0, MArch, "xscale");
else if (Name == "armv6")
DAL->AddJoinedArg(0, MArch, "armv6k");
else if (Name == "armv7")
DAL->AddJoinedArg(0, MArch, "armv7a");
else
llvm_unreachable("invalid Darwin arch");
}
// Add an explicit version min argument for the deployment target. We do this
// after argument translation because -Xarch_ arguments may add a version min
// argument.
AddDeploymentTarget(*DAL);
return DAL;
}
bool Darwin::IsUnwindTablesDefault() const {
// FIXME: Gross; we should probably have some separate target
// definition, possibly even reusing the one in clang.
return getArchName() == "x86_64";
}
bool Darwin::UseDwarfDebugFlags() const {
if (const char *S = ::getenv("RC_DEBUG_OPTIONS"))
return S[0] != '\0';
return false;
}
bool Darwin::UseSjLjExceptions() const {
// Darwin uses SjLj exceptions on ARM.
return (getTriple().getArch() == llvm::Triple::arm ||
getTriple().getArch() == llvm::Triple::thumb);
}
const char *Darwin::GetDefaultRelocationModel() const {
return "pic";
}
const char *Darwin::GetForcedPicModel() const {
if (getArchName() == "x86_64")
return "pic";
return 0;
}
bool Darwin::SupportsObjCGC() const {
// Garbage collection is supported everywhere except on iPhone OS.
return !isTargetIPhoneOS();
}
std::string
Darwin_Generic_GCC::ComputeEffectiveClangTriple(const ArgList &Args) const {
return ComputeLLVMTriple(Args);
}
/// Generic_GCC - A tool chain using the 'gcc' command to perform
/// all subcommands; this relies on gcc translating the majority of
/// command line options.
Generic_GCC::Generic_GCC(const HostInfo &Host, const llvm::Triple& Triple)
: ToolChain(Host, Triple) {
getProgramPaths().push_back(getDriver().getInstalledDir());
if (getDriver().getInstalledDir() != getDriver().Dir.c_str())
getProgramPaths().push_back(getDriver().Dir);
}
Generic_GCC::~Generic_GCC() {
// Free tool implementations.
for (llvm::DenseMap<unsigned, Tool*>::iterator
it = Tools.begin(), ie = Tools.end(); it != ie; ++it)
delete it->second;
}
Tool &Generic_GCC::SelectTool(const Compilation &C,
const JobAction &JA) const {
Action::ActionClass Key;
if (getDriver().ShouldUseClangCompiler(C, JA, getTriple()))
Key = Action::AnalyzeJobClass;
else
Key = JA.getKind();
Tool *&T = Tools[Key];
if (!T) {
switch (Key) {
case Action::InputClass:
case Action::BindArchClass:
assert(0 && "Invalid tool kind.");
case Action::PreprocessJobClass:
T = new tools::gcc::Preprocess(*this); break;
case Action::PrecompileJobClass:
T = new tools::gcc::Precompile(*this); break;
case Action::AnalyzeJobClass:
T = new tools::Clang(*this); break;
case Action::CompileJobClass:
T = new tools::gcc::Compile(*this); break;
case Action::AssembleJobClass:
T = new tools::gcc::Assemble(*this); break;
case Action::LinkJobClass:
T = new tools::gcc::Link(*this); break;
// This is a bit ungeneric, but the only platform using a driver
// driver is Darwin.
case Action::LipoJobClass:
T = new tools::darwin::Lipo(*this); break;
case Action::DsymutilJobClass:
T = new tools::darwin::Dsymutil(*this); break;
}
}
return *T;
}
bool Generic_GCC::IsUnwindTablesDefault() const {
// FIXME: Gross; we should probably have some separate target
// definition, possibly even reusing the one in clang.
return getArchName() == "x86_64";
}
const char *Generic_GCC::GetDefaultRelocationModel() const {
return "static";
}
const char *Generic_GCC::GetForcedPicModel() const {
return 0;
}
/// TCEToolChain - A tool chain using the llvm bitcode tools to perform
/// all subcommands. See http://tce.cs.tut.fi for our peculiar target.
/// Currently does not support anything else but compilation.
TCEToolChain::TCEToolChain(const HostInfo &Host, const llvm::Triple& Triple)
: ToolChain(Host, Triple) {
// Path mangling to find libexec
std::string Path(getDriver().Dir);
Path += "/../libexec";
getProgramPaths().push_back(Path);
}
TCEToolChain::~TCEToolChain() {
for (llvm::DenseMap<unsigned, Tool*>::iterator
it = Tools.begin(), ie = Tools.end(); it != ie; ++it)
delete it->second;
}
bool TCEToolChain::IsMathErrnoDefault() const {
return true;
}
bool TCEToolChain::IsUnwindTablesDefault() const {
return false;
}
const char *TCEToolChain::GetDefaultRelocationModel() const {
return "static";
}
const char *TCEToolChain::GetForcedPicModel() const {
return 0;
}
Tool &TCEToolChain::SelectTool(const Compilation &C,
const JobAction &JA) const {
Action::ActionClass Key;
Key = Action::AnalyzeJobClass;
Tool *&T = Tools[Key];
if (!T) {
switch (Key) {
case Action::PreprocessJobClass:
T = new tools::gcc::Preprocess(*this); break;
case Action::AnalyzeJobClass:
T = new tools::Clang(*this); break;
default:
assert(false && "Unsupported action for TCE target.");
}
}
return *T;
}
/// OpenBSD - OpenBSD tool chain which can call as(1) and ld(1) directly.
OpenBSD::OpenBSD(const HostInfo &Host, const llvm::Triple& Triple)
: Generic_ELF(Host, Triple) {
getFilePaths().push_back(getDriver().Dir + "/../lib");
getFilePaths().push_back("/usr/lib");
}
Tool &OpenBSD::SelectTool(const Compilation &C, const JobAction &JA) const {
Action::ActionClass Key;
if (getDriver().ShouldUseClangCompiler(C, JA, getTriple()))
Key = Action::AnalyzeJobClass;
else
Key = JA.getKind();
bool UseIntegratedAs = C.getArgs().hasFlag(options::OPT_integrated_as,
options::OPT_no_integrated_as,
IsIntegratedAssemblerDefault());
Tool *&T = Tools[Key];
if (!T) {
switch (Key) {
case Action::AssembleJobClass: {
if (UseIntegratedAs)
T = new tools::ClangAs(*this);
else
T = new tools::openbsd::Assemble(*this);
break;
}
case Action::LinkJobClass:
T = new tools::openbsd::Link(*this); break;
default:
T = &Generic_GCC::SelectTool(C, JA);
}
}
return *T;
}
/// FreeBSD - FreeBSD tool chain which can call as(1) and ld(1) directly.
FreeBSD::FreeBSD(const HostInfo &Host, const llvm::Triple& Triple)
: Generic_ELF(Host, Triple) {
// Determine if we are compiling 32-bit code on an x86_64 platform.
bool Lib32 = false;
if (Triple.getArch() == llvm::Triple::x86 &&
llvm::Triple(getDriver().DefaultHostTriple).getArch() ==
llvm::Triple::x86_64)
Lib32 = true;
getProgramPaths().push_back(getDriver().Dir + "/../libexec");
getProgramPaths().push_back("/usr/libexec");
if (Lib32) {
getFilePaths().push_back(getDriver().Dir + "/../lib32");
getFilePaths().push_back("/usr/lib32");
} else {
getFilePaths().push_back(getDriver().Dir + "/../lib");
getFilePaths().push_back("/usr/lib");
}
}
Tool &FreeBSD::SelectTool(const Compilation &C, const JobAction &JA) const {
Action::ActionClass Key;
if (getDriver().ShouldUseClangCompiler(C, JA, getTriple()))
Key = Action::AnalyzeJobClass;
else
Key = JA.getKind();
bool UseIntegratedAs = C.getArgs().hasFlag(options::OPT_integrated_as,
options::OPT_no_integrated_as,
IsIntegratedAssemblerDefault());
Tool *&T = Tools[Key];
if (!T) {
switch (Key) {
case Action::AssembleJobClass:
if (UseIntegratedAs)
T = new tools::ClangAs(*this);
else
T = new tools::freebsd::Assemble(*this);
break;
case Action::LinkJobClass:
T = new tools::freebsd::Link(*this); break;
default:
T = &Generic_GCC::SelectTool(C, JA);
}
}
return *T;
}
/// Minix - Minix tool chain which can call as(1) and ld(1) directly.
Minix::Minix(const HostInfo &Host, const llvm::Triple& Triple)
: Generic_GCC(Host, Triple) {
getFilePaths().push_back(getDriver().Dir + "/../lib");
getFilePaths().push_back("/usr/lib");
getFilePaths().push_back("/usr/gnu/lib");
getFilePaths().push_back("/usr/gnu/lib/gcc/i686-pc-minix/4.4.3");
}
Tool &Minix::SelectTool(const Compilation &C, const JobAction &JA) const {
Action::ActionClass Key;
if (getDriver().ShouldUseClangCompiler(C, JA, getTriple()))
Key = Action::AnalyzeJobClass;
else
Key = JA.getKind();
Tool *&T = Tools[Key];
if (!T) {
switch (Key) {
case Action::AssembleJobClass:
T = new tools::minix::Assemble(*this); break;
case Action::LinkJobClass:
T = new tools::minix::Link(*this); break;
default:
T = &Generic_GCC::SelectTool(C, JA);
}
}
return *T;
}
/// AuroraUX - AuroraUX tool chain which can call as(1) and ld(1) directly.
AuroraUX::AuroraUX(const HostInfo &Host, const llvm::Triple& Triple)
: Generic_GCC(Host, Triple) {
getProgramPaths().push_back(getDriver().getInstalledDir());
if (getDriver().getInstalledDir() != getDriver().Dir.c_str())
getProgramPaths().push_back(getDriver().Dir);
getFilePaths().push_back(getDriver().Dir + "/../lib");
getFilePaths().push_back("/usr/lib");
getFilePaths().push_back("/usr/sfw/lib");
getFilePaths().push_back("/opt/gcc4/lib");
getFilePaths().push_back("/opt/gcc4/lib/gcc/i386-pc-solaris2.11/4.2.4");
}
Tool &AuroraUX::SelectTool(const Compilation &C, const JobAction &JA) const {
Action::ActionClass Key;
if (getDriver().ShouldUseClangCompiler(C, JA, getTriple()))
Key = Action::AnalyzeJobClass;
else
Key = JA.getKind();
Tool *&T = Tools[Key];
if (!T) {
switch (Key) {
case Action::AssembleJobClass:
T = new tools::auroraux::Assemble(*this); break;
case Action::LinkJobClass:
T = new tools::auroraux::Link(*this); break;
default:
T = &Generic_GCC::SelectTool(C, JA);
}
}
return *T;
}
/// Linux toolchain (very bare-bones at the moment).
enum LinuxDistro {
DebianLenny,
DebianSqueeze,
Exherbo,
Fedora13,
Fedora14,
OpenSuse11_3,
UbuntuJaunty,
UbuntuKarmic,
UbuntuLucid,
UbuntuMaverick,
UnknownDistro
};
static bool IsFedora(enum LinuxDistro Distro) {
return Distro == Fedora13 || Distro == Fedora14;
}
static bool IsOpenSuse(enum LinuxDistro Distro) {
return Distro == OpenSuse11_3;
}
static bool IsDebian(enum LinuxDistro Distro) {
return Distro == DebianLenny || Distro == DebianSqueeze;
}
static bool IsUbuntu(enum LinuxDistro Distro) {
return Distro == UbuntuLucid || Distro == UbuntuMaverick ||
Distro == UbuntuJaunty || Distro == UbuntuKarmic;
}
static bool IsDebianBased(enum LinuxDistro Distro) {
return IsDebian(Distro) || IsUbuntu(Distro);
}
static bool HasMultilib(llvm::Triple::ArchType Arch, enum LinuxDistro Distro) {
if (Arch == llvm::Triple::x86_64) {
bool Exists;
if (Distro == Exherbo &&
(llvm::sys::fs::exists("/usr/lib32/libc.so", Exists) || !Exists))
return false;
return true;
}
if (Arch == llvm::Triple::x86 && IsDebianBased(Distro))
return true;
return false;
}
static LinuxDistro DetectLinuxDistro(llvm::Triple::ArchType Arch) {
llvm::OwningPtr<llvm::MemoryBuffer> File;
if (!llvm::MemoryBuffer::getFile("/etc/lsb-release", File)) {
llvm::StringRef Data = File.get()->getBuffer();
llvm::SmallVector<llvm::StringRef, 8> Lines;
Data.split(Lines, "\n");
for (unsigned int i = 0, s = Lines.size(); i < s; ++ i) {
if (Lines[i] == "DISTRIB_CODENAME=maverick")
return UbuntuMaverick;
else if (Lines[i] == "DISTRIB_CODENAME=lucid")
return UbuntuLucid;
else if (Lines[i] == "DISTRIB_CODENAME=jaunty")
return UbuntuJaunty;
else if (Lines[i] == "DISTRIB_CODENAME=karmic")
return UbuntuKarmic;
}
return UnknownDistro;
}
if (!llvm::MemoryBuffer::getFile("/etc/redhat-release", File)) {
llvm::StringRef Data = File.get()->getBuffer();
if (Data.startswith("Fedora release 14 (Laughlin)"))
return Fedora14;
else if (Data.startswith("Fedora release 13 (Goddard)"))
return Fedora13;
return UnknownDistro;
}
if (!llvm::MemoryBuffer::getFile("/etc/debian_version", File)) {
llvm::StringRef Data = File.get()->getBuffer();
if (Data[0] == '5')
return DebianLenny;
else if (Data.startswith("squeeze/sid"))
return DebianSqueeze;
return UnknownDistro;
}
if (!llvm::MemoryBuffer::getFile("/etc/SuSE-release", File)) {
llvm::StringRef Data = File.get()->getBuffer();
if (Data.startswith("openSUSE 11.3"))
return OpenSuse11_3;
return UnknownDistro;
}
bool Exists;
if (!llvm::sys::fs::exists("/etc/exherbo-release", Exists) && Exists)
return Exherbo;
return UnknownDistro;
}
Linux::Linux(const HostInfo &Host, const llvm::Triple &Triple)
: Generic_ELF(Host, Triple) {
llvm::Triple::ArchType Arch =
llvm::Triple(getDriver().DefaultHostTriple).getArch();
std::string Suffix32 = "";
if (Arch == llvm::Triple::x86_64)
Suffix32 = "/32";
std::string Suffix64 = "";
if (Arch == llvm::Triple::x86)
Suffix64 = "/64";
std::string Lib32 = "lib";
bool Exists;
if (!llvm::sys::fs::exists("/lib32", Exists) && Exists)
Lib32 = "lib32";
std::string Lib64 = "lib";
bool Symlink;
if (!llvm::sys::fs::exists("/lib64", Exists) && Exists &&
(llvm::sys::fs::is_symlink("/lib64", Symlink) || !Symlink))
Lib64 = "lib64";
std::string GccTriple = "";
if (Arch == llvm::Triple::arm) {
if (!llvm::sys::fs::exists("/usr/lib/gcc/arm-linux-gnueabi", Exists) &&
Exists)
GccTriple = "arm-linux-gnueabi";
} else if (Arch == llvm::Triple::x86_64) {
if (!llvm::sys::fs::exists("/usr/lib/gcc/x86_64-linux-gnu", Exists) &&
Exists)
GccTriple = "x86_64-linux-gnu";
else if (!llvm::sys::fs::exists("/usr/lib/gcc/x86_64-unknown-linux-gnu",
Exists) && Exists)
GccTriple = "x86_64-unknown-linux-gnu";
else if (!llvm::sys::fs::exists("/usr/lib/gcc/x86_64-pc-linux-gnu",
Exists) && Exists)
GccTriple = "x86_64-pc-linux-gnu";
else if (!llvm::sys::fs::exists("/usr/lib/gcc/x86_64-redhat-linux",
Exists) && Exists)
GccTriple = "x86_64-redhat-linux";
else if (!llvm::sys::fs::exists("/usr/lib64/gcc/x86_64-suse-linux",
Exists) && Exists)
GccTriple = "x86_64-suse-linux";
} else if (Arch == llvm::Triple::x86) {
if (!llvm::sys::fs::exists("/usr/lib/gcc/i686-linux-gnu", Exists) && Exists)
GccTriple = "i686-linux-gnu";
else if (!llvm::sys::fs::exists("/usr/lib/gcc/i686-pc-linux-gnu", Exists) &&
Exists)
GccTriple = "i686-pc-linux-gnu";
else if (!llvm::sys::fs::exists("/usr/lib/gcc/i486-linux-gnu", Exists) &&
Exists)
GccTriple = "i486-linux-gnu";
else if (!llvm::sys::fs::exists("/usr/lib/gcc/i686-redhat-linux", Exists) &&
Exists)
GccTriple = "i686-redhat-linux";
else if (!llvm::sys::fs::exists("/usr/lib/gcc/i586-suse-linux", Exists) &&
Exists)
GccTriple = "i586-suse-linux";
}
const char* GccVersions[] = {"4.5.1", "4.5", "4.4.5", "4.4.4", "4.4.3", "4.4",
"4.3.4", "4.3.3", "4.3.2"};
std::string Base = "";
for (unsigned i = 0; i < sizeof(GccVersions)/sizeof(char*); ++i) {
std::string Suffix = GccTriple + "/" + GccVersions[i];
std::string t1 = "/usr/lib/gcc/" + Suffix;
if (!llvm::sys::fs::exists(t1 + "/crtbegin.o", Exists) && Exists) {
Base = t1;
break;
}
std::string t2 = "/usr/lib64/gcc/" + Suffix;
if (!llvm::sys::fs::exists(t2 + "/crtbegin.o", Exists) && Exists) {
Base = t2;
break;
}
}
path_list &Paths = getFilePaths();
bool Is32Bits = getArch() == llvm::Triple::x86;
std::string Suffix;
std::string Lib;
if (Is32Bits) {
Suffix = Suffix32;
Lib = Lib32;
} else {
Suffix = Suffix64;
Lib = Lib64;
}
llvm::sys::Path LinkerPath(Base + "/../../../../" + GccTriple + "/bin/ld");
if (!llvm::sys::fs::exists(LinkerPath.str(), Exists) && Exists)
Linker = LinkerPath.str();
else
Linker = GetProgramPath("ld");
LinuxDistro Distro = DetectLinuxDistro(Arch);
if (IsUbuntu(Distro)) {
ExtraOpts.push_back("-z");
ExtraOpts.push_back("relro");
}
if (Arch == llvm::Triple::arm)
ExtraOpts.push_back("-X");
if (IsFedora(Distro) || Distro == UbuntuMaverick)
ExtraOpts.push_back("--hash-style=gnu");
if (IsDebian(Distro) || Distro == UbuntuLucid || Distro == UbuntuJaunty ||
Distro == UbuntuKarmic)
ExtraOpts.push_back("--hash-style=both");
if (IsFedora(Distro))
ExtraOpts.push_back("--no-add-needed");
if (Distro == DebianSqueeze || IsOpenSuse(Distro) ||
IsFedora(Distro) || Distro == UbuntuLucid || Distro == UbuntuMaverick ||
Distro == UbuntuKarmic)
ExtraOpts.push_back("--build-id");
Paths.push_back(Base + Suffix);
if (HasMultilib(Arch, Distro)) {
if (IsOpenSuse(Distro) && Is32Bits)
Paths.push_back(Base + "/../../../../" + GccTriple + "/lib/../lib");
Paths.push_back(Base + "/../../../../" + Lib);
Paths.push_back("/lib/../" + Lib);
Paths.push_back("/usr/lib/../" + Lib);
}
if (!Suffix.empty())
Paths.push_back(Base);
if (IsOpenSuse(Distro))
Paths.push_back(Base + "/../../../../" + GccTriple + "/lib");
Paths.push_back(Base + "/../../..");
if (Arch == getArch() && IsUbuntu(Distro))
Paths.push_back("/usr/lib/" + GccTriple);
}
bool Linux::HasNativeLLVMSupport() const {
return true;
}
Tool &Linux::SelectTool(const Compilation &C, const JobAction &JA) const {
Action::ActionClass Key;
if (getDriver().ShouldUseClangCompiler(C, JA, getTriple()))
Key = Action::AnalyzeJobClass;
else
Key = JA.getKind();
bool UseIntegratedAs = C.getArgs().hasFlag(options::OPT_integrated_as,
options::OPT_no_integrated_as,
IsIntegratedAssemblerDefault());
Tool *&T = Tools[Key];
if (!T) {
switch (Key) {
case Action::AssembleJobClass:
if (UseIntegratedAs)
T = new tools::ClangAs(*this);
else
T = new tools::linuxtools::Assemble(*this);
break;
case Action::LinkJobClass:
T = new tools::linuxtools::Link(*this); break;
default:
T = &Generic_GCC::SelectTool(C, JA);
}
}
return *T;
}
/// DragonFly - DragonFly tool chain which can call as(1) and ld(1) directly.
DragonFly::DragonFly(const HostInfo &Host, const llvm::Triple& Triple)
: Generic_ELF(Host, Triple) {
// Path mangling to find libexec
getProgramPaths().push_back(getDriver().getInstalledDir());
if (getDriver().getInstalledDir() != getDriver().Dir.c_str())
getProgramPaths().push_back(getDriver().Dir);
getFilePaths().push_back(getDriver().Dir + "/../lib");
getFilePaths().push_back("/usr/lib");
getFilePaths().push_back("/usr/lib/gcc41");
}
Tool &DragonFly::SelectTool(const Compilation &C, const JobAction &JA) const {
Action::ActionClass Key;
if (getDriver().ShouldUseClangCompiler(C, JA, getTriple()))
Key = Action::AnalyzeJobClass;
else
Key = JA.getKind();
Tool *&T = Tools[Key];
if (!T) {
switch (Key) {
case Action::AssembleJobClass:
T = new tools::dragonfly::Assemble(*this); break;
case Action::LinkJobClass:
T = new tools::dragonfly::Link(*this); break;
default:
T = &Generic_GCC::SelectTool(C, JA);
}
}
return *T;
}
Windows::Windows(const HostInfo &Host, const llvm::Triple& Triple)
: ToolChain(Host, Triple) {
}
Tool &Windows::SelectTool(const Compilation &C, const JobAction &JA) const {
Action::ActionClass Key;
if (getDriver().ShouldUseClangCompiler(C, JA, getTriple()))
Key = Action::AnalyzeJobClass;
else
Key = JA.getKind();
Tool *&T = Tools[Key];
if (!T) {
switch (Key) {
case Action::InputClass:
case Action::BindArchClass:
case Action::LipoJobClass:
case Action::DsymutilJobClass:
assert(0 && "Invalid tool kind.");
case Action::PreprocessJobClass:
case Action::PrecompileJobClass:
case Action::AnalyzeJobClass:
case Action::CompileJobClass:
T = new tools::Clang(*this); break;
case Action::AssembleJobClass:
T = new tools::ClangAs(*this); break;
case Action::LinkJobClass:
T = new tools::visualstudio::Link(*this); break;
}
}
return *T;
}
bool Windows::IsIntegratedAssemblerDefault() const {
return true;
}
bool Windows::IsUnwindTablesDefault() const {
// FIXME: Gross; we should probably have some separate target
// definition, possibly even reusing the one in clang.
return getArchName() == "x86_64";
}
const char *Windows::GetDefaultRelocationModel() const {
return "static";
}
const char *Windows::GetForcedPicModel() const {
if (getArchName() == "x86_64")
return "pic";
return 0;
}