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llvm-project/clang/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 "llvm/ADT/StringExtras.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/System/Path.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,
const unsigned (&_DarwinVersion)[3])
: ToolChain(Host, Triple), TargetInitialized(false)
{
llvm::raw_string_ostream(MacosxVersionMin)
<< "10." << std::max(0, (int)_DarwinVersion[0] - 4) << '.'
<< _DarwinVersion[1];
}
// 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,
const unsigned (&DarwinVersion)[3],
const unsigned (&_GCCVersion)[3])
: Darwin(Host, Triple, DarwinVersion)
{
GCCVersion[0] = _GCCVersion[0];
GCCVersion[1] = _GCCVersion[1];
GCCVersion[2] = _GCCVersion[2];
// 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;
if (!llvm::sys::Path(Tmp).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::Path(Tmp).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().Dir);
}
Darwin::~Darwin() {
// Free tool implementations.
for (llvm::DenseMap<unsigned, Tool*>::iterator
it = Tools.begin(), ie = Tools.end(); it != ie; ++it)
delete it->second;
}
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;
if (llvm::sys::Path(Tmp).exists())
CmdArgs.push_back(Args.MakeArgString("-L" + Tmp));
Tmp = getDriver().Dir + "/../lib/gcc";
if (llvm::sys::Path(Tmp).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::Path(Tmp).exists())
CmdArgs.push_back(Args.MakeArgString("-L" + Tmp));
Tmp = getDriver().Dir + "/../lib";
if (llvm::sys::Path(Tmp).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,
const unsigned (&DarwinVersion)[3])
: Darwin(Host, Triple, DarwinVersion)
{
// We expect 'as', 'ld', etc. to be adjacent to our install dir.
getProgramPaths().push_back(getDriver().Dir);
}
void DarwinClang::AddLinkSearchPathArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
// The Clang toolchain uses explicit paths for internal libraries.
}
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 only need a static runtime library when targetting 10.4, to
// provide versions of the static functions which were omitted from
// 10.4.dylib.
if (isMacosxVersionLT(10, 5))
DarwinStaticLib = "libclang_rt.10.4.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.
if (!P.exists())
getDriver().Diag(clang::diag::warn_drv_missing_resource_library)
<< P.str();
else
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.
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 = DAL->MakeJoinedArg(0, O, OSXTarget);
DAL->append(OSXVersion);
} else if (iPhoneOSTarget) {
const Option *O = Opts.getOption(options::OPT_miphoneos_version_min_EQ);
iPhoneVersion = DAL->MakeJoinedArg(0, O, iPhoneOSTarget);
DAL->append(iPhoneVersion);
} else {
// Otherwise, choose a default platform based on the tool chain.
//
// FIXME: Don't hardcode default here.
if (getTriple().getArch() == llvm::Triple::arm ||
getTriple().getArch() == llvm::Triple::thumb) {
const Option *O = Opts.getOption(options::OPT_miphoneos_version_min_EQ);
iPhoneVersion = DAL->MakeJoinedArg(0, O, "3.0");
DAL->append(iPhoneVersion);
} else {
const Option *O = Opts.getOption(options::OPT_mmacosx_version_min_EQ);
OSXVersion = DAL->MakeJoinedArg(0, O, MacosxVersionMin);
DAL->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);
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");
}
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();
}
/// 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().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_GCC(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();
Tool *&T = Tools[Key];
if (!T) {
switch (Key) {
case Action::AssembleJobClass:
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, bool Lib32)
: Generic_GCC(Host, Triple) {
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();
Tool *&T = Tools[Key];
if (!T) {
switch (Key) {
case Action::AssembleJobClass:
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;
}
/// 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().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).
Linux::Linux(const HostInfo &Host, const llvm::Triple& Triple)
: Generic_GCC(Host, Triple) {
getFilePaths().push_back(getDriver().Dir + "/../lib/clang/1.0/");
getFilePaths().push_back("/lib/");
getFilePaths().push_back("/usr/lib/");
// Depending on the Linux distribution, any combination of lib{,32,64} is
// possible. E.g. Debian uses lib and lib32 for mixed i386/x86-64 systems,
// openSUSE uses lib and lib64 for the same purpose.
getFilePaths().push_back("/lib32/");
getFilePaths().push_back("/usr/lib32/");
getFilePaths().push_back("/lib64/");
getFilePaths().push_back("/usr/lib64/");
// FIXME: Figure out some way to get gcc's libdir
// (e.g. /usr/lib/gcc/i486-linux-gnu/4.3/ for Ubuntu 32-bit); we need
// crtbegin.o/crtend.o/etc., and want static versions of various
// libraries. If we had our own crtbegin.o/crtend.o/etc, we could probably
// get away with using shared versions in /usr/lib, though.
// We could fall back to the approach we used for includes (a massive
// list), but that's messy at best.
}
/// DragonFly - DragonFly tool chain which can call as(1) and ld(1) directly.
DragonFly::DragonFly(const HostInfo &Host, const llvm::Triple& Triple)
: Generic_GCC(Host, Triple) {
// Path mangling to find libexec
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;
}
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