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491db32444
implementation in the driver. This cleans up the signature and semantics of the include flag adding component of the toolchain. Another step to ready it for holding all the InitHeaderSearch logic. llvm-svn: 143686
257 lines
7.7 KiB
C++
257 lines
7.7 KiB
C++
//===--- ToolChain.cpp - Collections of tools for one platform ------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Driver/ToolChain.h"
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#include "clang/Driver/Action.h"
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#include "clang/Driver/Arg.h"
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#include "clang/Driver/ArgList.h"
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#include "clang/Driver/Driver.h"
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#include "clang/Driver/DriverDiagnostic.h"
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#include "clang/Driver/HostInfo.h"
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#include "clang/Driver/ObjCRuntime.h"
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#include "clang/Driver/Options.h"
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#include "llvm/Support/ErrorHandling.h"
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using namespace clang::driver;
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using namespace clang;
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ToolChain::ToolChain(const HostInfo &H, const llvm::Triple &T)
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: Host(H), Triple(T) {
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}
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ToolChain::~ToolChain() {
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}
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const Driver &ToolChain::getDriver() const {
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return Host.getDriver();
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}
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std::string ToolChain::GetFilePath(const char *Name) const {
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return Host.getDriver().GetFilePath(Name, *this);
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}
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std::string ToolChain::GetProgramPath(const char *Name, bool WantFile) const {
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return Host.getDriver().GetProgramPath(Name, *this, WantFile);
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}
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types::ID ToolChain::LookupTypeForExtension(const char *Ext) const {
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return types::lookupTypeForExtension(Ext);
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}
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bool ToolChain::HasNativeLLVMSupport() const {
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return false;
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}
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void ToolChain::configureObjCRuntime(ObjCRuntime &runtime) const {
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switch (runtime.getKind()) {
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case ObjCRuntime::NeXT:
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// Assume a minimal NeXT runtime.
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runtime.HasARC = false;
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runtime.HasWeak = false;
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runtime.HasTerminate = false;
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return;
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case ObjCRuntime::GNU:
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// Assume a maximal GNU runtime.
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runtime.HasARC = true;
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runtime.HasWeak = true;
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runtime.HasTerminate = false; // to be added
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return;
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}
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llvm_unreachable("invalid runtime kind!");
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}
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/// getARMTargetCPU - Get the (LLVM) name of the ARM cpu we are targeting.
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//
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// FIXME: tblgen this.
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static const char *getARMTargetCPU(const ArgList &Args,
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const llvm::Triple &Triple) {
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// FIXME: Warn on inconsistent use of -mcpu and -march.
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// If we have -mcpu=, use that.
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if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ))
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return A->getValue(Args);
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StringRef MArch;
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if (Arg *A = Args.getLastArg(options::OPT_march_EQ)) {
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// Otherwise, if we have -march= choose the base CPU for that arch.
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MArch = A->getValue(Args);
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} else {
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// Otherwise, use the Arch from the triple.
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MArch = Triple.getArchName();
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}
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if (MArch == "armv2" || MArch == "armv2a")
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return "arm2";
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if (MArch == "armv3")
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return "arm6";
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if (MArch == "armv3m")
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return "arm7m";
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if (MArch == "armv4" || MArch == "armv4t")
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return "arm7tdmi";
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if (MArch == "armv5" || MArch == "armv5t")
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return "arm10tdmi";
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if (MArch == "armv5e" || MArch == "armv5te")
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return "arm1026ejs";
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if (MArch == "armv5tej")
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return "arm926ej-s";
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if (MArch == "armv6" || MArch == "armv6k")
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return "arm1136jf-s";
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if (MArch == "armv6j")
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return "arm1136j-s";
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if (MArch == "armv6z" || MArch == "armv6zk")
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return "arm1176jzf-s";
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if (MArch == "armv6t2")
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return "arm1156t2-s";
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if (MArch == "armv7" || MArch == "armv7a" || MArch == "armv7-a")
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return "cortex-a8";
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if (MArch == "armv7r" || MArch == "armv7-r")
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return "cortex-r4";
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if (MArch == "armv7m" || MArch == "armv7-m")
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return "cortex-m3";
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if (MArch == "ep9312")
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return "ep9312";
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if (MArch == "iwmmxt")
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return "iwmmxt";
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if (MArch == "xscale")
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return "xscale";
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if (MArch == "armv6m" || MArch == "armv6-m")
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return "cortex-m0";
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// If all else failed, return the most base CPU LLVM supports.
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return "arm7tdmi";
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}
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/// getLLVMArchSuffixForARM - Get the LLVM arch name to use for a particular
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/// CPU.
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//
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// FIXME: This is redundant with -mcpu, why does LLVM use this.
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// FIXME: tblgen this, or kill it!
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static const char *getLLVMArchSuffixForARM(StringRef CPU) {
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if (CPU == "arm7tdmi" || CPU == "arm7tdmi-s" || CPU == "arm710t" ||
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CPU == "arm720t" || CPU == "arm9" || CPU == "arm9tdmi" ||
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CPU == "arm920" || CPU == "arm920t" || CPU == "arm922t" ||
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CPU == "arm940t" || CPU == "ep9312")
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return "v4t";
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if (CPU == "arm10tdmi" || CPU == "arm1020t")
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return "v5";
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if (CPU == "arm9e" || CPU == "arm926ej-s" || CPU == "arm946e-s" ||
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CPU == "arm966e-s" || CPU == "arm968e-s" || CPU == "arm10e" ||
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CPU == "arm1020e" || CPU == "arm1022e" || CPU == "xscale" ||
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CPU == "iwmmxt")
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return "v5e";
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if (CPU == "arm1136j-s" || CPU == "arm1136jf-s" || CPU == "arm1176jz-s" ||
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CPU == "arm1176jzf-s" || CPU == "mpcorenovfp" || CPU == "mpcore")
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return "v6";
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if (CPU == "arm1156t2-s" || CPU == "arm1156t2f-s")
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return "v6t2";
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if (CPU == "cortex-a8" || CPU == "cortex-a9")
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return "v7";
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if (CPU == "cortex-m3")
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return "v7m";
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if (CPU == "cortex-m0")
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return "v6m";
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return "";
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}
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std::string ToolChain::ComputeLLVMTriple(const ArgList &Args,
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types::ID InputType) const {
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switch (getTriple().getArch()) {
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default:
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return getTripleString();
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case llvm::Triple::arm:
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case llvm::Triple::thumb: {
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// FIXME: Factor into subclasses.
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llvm::Triple Triple = getTriple();
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// Thumb2 is the default for V7 on Darwin.
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//
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// FIXME: Thumb should just be another -target-feaure, not in the triple.
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StringRef Suffix =
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getLLVMArchSuffixForARM(getARMTargetCPU(Args, Triple));
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bool ThumbDefault = (Suffix == "v7" && getTriple().isOSDarwin());
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std::string ArchName = "arm";
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// Assembly files should start in ARM mode.
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if (InputType != types::TY_PP_Asm &&
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Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb, ThumbDefault))
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ArchName = "thumb";
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Triple.setArchName(ArchName + Suffix.str());
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return Triple.getTriple();
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}
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}
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}
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std::string ToolChain::ComputeEffectiveClangTriple(const ArgList &Args,
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types::ID InputType) const {
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// Diagnose use of Darwin OS deployment target arguments on non-Darwin.
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if (Arg *A = Args.getLastArg(options::OPT_mmacosx_version_min_EQ,
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options::OPT_miphoneos_version_min_EQ,
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options::OPT_mios_simulator_version_min_EQ))
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getDriver().Diag(diag::err_drv_clang_unsupported)
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<< A->getAsString(Args);
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return ComputeLLVMTriple(Args, InputType);
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}
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void ToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
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ArgStringList &CC1Args) const {
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// Each toolchain should provide the appropriate include flags.
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}
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ToolChain::CXXStdlibType ToolChain::GetCXXStdlibType(const ArgList &Args) const{
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if (Arg *A = Args.getLastArg(options::OPT_stdlib_EQ)) {
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StringRef Value = A->getValue(Args);
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if (Value == "libc++")
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return ToolChain::CST_Libcxx;
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if (Value == "libstdc++")
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return ToolChain::CST_Libstdcxx;
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getDriver().Diag(diag::err_drv_invalid_stdlib_name)
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<< A->getAsString(Args);
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}
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return ToolChain::CST_Libstdcxx;
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}
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void ToolChain::AddClangCXXStdlibIncludeArgs(const ArgList &Args,
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ArgStringList &CmdArgs) const {
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// Header search paths are handled by each of the subclasses.
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}
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void ToolChain::AddCXXStdlibLibArgs(const ArgList &Args,
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ArgStringList &CmdArgs) const {
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CXXStdlibType Type = GetCXXStdlibType(Args);
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switch (Type) {
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case ToolChain::CST_Libcxx:
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CmdArgs.push_back("-lc++");
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break;
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case ToolChain::CST_Libstdcxx:
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CmdArgs.push_back("-lstdc++");
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break;
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}
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}
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void ToolChain::AddCCKextLibArgs(const ArgList &Args,
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ArgStringList &CmdArgs) const {
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CmdArgs.push_back("-lcc_kext");
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}
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