microsoft
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clang-1
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clang-1/lib/Driver/Tools.cpp

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C++
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//===--- Tools.cpp - Tools Implementations ------------------------------*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "Tools.h"
#include "clang/Driver/Action.h"
#include "clang/Driver/Arg.h"
#include "clang/Driver/ArgList.h"
#include "clang/Driver/Driver.h" // FIXME: Remove?
#include "clang/Driver/DriverDiagnostic.h" // FIXME: Remove?
#include "clang/Driver/Compilation.h"
#include "clang/Driver/Job.h"
#include "clang/Driver/HostInfo.h"
#include "clang/Driver/Option.h"
#include "clang/Driver/ToolChain.h"
#include "clang/Driver/Util.h"
#include "llvm/ADT/SmallVector.h"
#include "InputInfo.h"
using namespace clang::driver;
using namespace clang::driver::tools;
void Clang::ConstructJob(Compilation &C, const JobAction &JA,
Job &Dest,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
if (isa<AnalyzeJobAction>(JA)) {
assert(JA.getType() == types::TY_Plist && "Invalid output type.");
CmdArgs.push_back("-analyze");
} else if (isa<PreprocessJobAction>(JA)) {
CmdArgs.push_back("-E");
} else if (isa<PrecompileJobAction>(JA)) {
// No special option needed, driven by -x.
//
// FIXME: Don't drive this by -x, that is gross.
// FIXME: This is a total hack. Copy the input header file
// to the output, so that it can be -include'd by clang.
assert(Inputs.size() == 1 && "Cannot make PCH with multiple inputs.");
assert(Output.isFilename() && "Unexpected output");
assert(!Inputs[0].isPipe() && "Unexpected pipe");
assert(Inputs[0].isFilename() && "Unexpected input");
const char *InputPath = Inputs[0].getFilename();
llvm::sys::Path OutputPath(Output.getFilename());
OutputPath.eraseComponent();
if (OutputPath.empty())
OutputPath = llvm::sys::Path(InputPath).getLast();
else
OutputPath.appendComponent(llvm::sys::Path(InputPath).getLast());
if (!OutputPath.exists()) {
ArgStringList CpArgs;
CpArgs.push_back(InputPath);
CpArgs.push_back(Args.MakeArgString(OutputPath.c_str()));
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath(C, "cp").c_str());
C.getJobs().addJob(new Command(Exec, CpArgs));
}
} else {
assert(isa<CompileJobAction>(JA) && "Invalid action for clang tool.");
if (JA.getType() == types::TY_Nothing) {
CmdArgs.push_back("-fsyntax-only");
} else if (JA.getType() == types::TY_LLVMAsm) {
CmdArgs.push_back("-emit-llvm");
} else if (JA.getType() == types::TY_LLVMBC) {
CmdArgs.push_back("-emit-llvm-bc");
} else if (JA.getType() == types::TY_PP_Asm) {
CmdArgs.push_back("-S");
}
}
// The make clang go fast button.
CmdArgs.push_back("-disable-free");
if (isa<AnalyzeJobAction>(JA)) {
// Add default argument set.
//
// FIXME: Move into clang?
CmdArgs.push_back("-warn-dead-stores");
CmdArgs.push_back("-checker-cfref");
CmdArgs.push_back("-warn-objc-methodsigs");
// Do not enable the missing -dealloc check.
// '-warn-objc-missing-dealloc',
CmdArgs.push_back("-warn-objc-unused-ivars");
CmdArgs.push_back("-analyzer-output=plist");
// Add -Xanalyzer arguments when running as analyzer.
Args.AddAllArgValues(CmdArgs, options::OPT_Xanalyzer);
} else {
// Perform argument translation for LLVM backend. This
// takes some care in reconciling with llvm-gcc. The
// issue is that llvm-gcc translates these options based on
// the values in cc1, whereas we are processing based on
// the driver arguments.
//
// FIXME: This is currently broken for -f flags when -fno
// variants are present.
// This comes from the default translation the driver + cc1
// would do to enable flag_pic.
//
// FIXME: Centralize this code.
bool PICEnabled = (Args.hasArg(options::OPT_fPIC) ||
Args.hasArg(options::OPT_fpic) ||
Args.hasArg(options::OPT_fPIE) ||
Args.hasArg(options::OPT_fpie));
bool PICDisabled = (Args.hasArg(options::OPT_mkernel) ||
Args.hasArg(options::OPT_static));
const char *Model = getToolChain().GetForcedPicModel();
if (!Model) {
if (Args.hasArg(options::OPT_mdynamic_no_pic))
Model = "dynamic-no-pic";
else if (PICDisabled)
Model = "static";
else if (PICEnabled)
Model = "pic";
else
Model = getToolChain().GetDefaultRelocationModel();
}
CmdArgs.push_back("--relocation-model");
CmdArgs.push_back(Model);
if (Args.hasArg(options::OPT_ftime_report))
CmdArgs.push_back("--time-passes");
// FIXME: Set --enable-unsafe-fp-math.
if (!Args.hasArg(options::OPT_fomit_frame_pointer))
CmdArgs.push_back("--disable-fp-elim");
if (!Args.hasFlag(options::OPT_fzero_initialized_in_bss,
options::OPT_fno_zero_initialized_in_bss,
true))
CmdArgs.push_back("--nozero-initialized-in-bss");
if (Args.hasArg(options::OPT_dA))
CmdArgs.push_back("--asm-verbose");
if (Args.hasArg(options::OPT_fdebug_pass_structure))
CmdArgs.push_back("--debug-pass=Structure");
if (Args.hasArg(options::OPT_fdebug_pass_arguments))
CmdArgs.push_back("--debug-pass=Arguments");
// FIXME: set --inline-threshhold=50 if (optimize_size || optimize
// < 3)
if (Args.hasFlag(options::OPT_funwind_tables,
options::OPT_fno_unwind_tables,
getToolChain().IsUnwindTablesDefault()))
CmdArgs.push_back("--unwind-tables=1");
else
CmdArgs.push_back("--unwind-tables=0");
if (!Args.hasFlag(options::OPT_mred_zone,
options::OPT_mno_red_zone,
true))
CmdArgs.push_back("--disable-red-zone");
if (Args.hasFlag(options::OPT_msoft_float,
options::OPT_mno_soft_float,
false))
CmdArgs.push_back("--soft-float");
// FIXME: Need target hooks.
if (memcmp(getToolChain().getPlatform().c_str(), "darwin", 6) == 0) {
if (getToolChain().getArchName() == "x86_64")
CmdArgs.push_back("--mcpu=core2");
else if (getToolChain().getArchName() == "i386")
CmdArgs.push_back("--mcpu=yonah");
}
// FIXME: Ignores ordering. Also, we need to find a realistic
// solution for this.
static const struct {
options::ID Pos, Neg;
const char *Name;
} FeatureOptions[] = {
{ options::OPT_mmmx, options::OPT_mno_mmx, "mmx" },
{ options::OPT_msse, options::OPT_mno_sse, "sse" },
{ options::OPT_msse2, options::OPT_mno_sse2, "sse2" },
{ options::OPT_msse3, options::OPT_mno_sse3, "sse3" },
{ options::OPT_mssse3, options::OPT_mno_ssse3, "ssse3" },
{ options::OPT_msse41, options::OPT_mno_sse41, "sse41" },
{ options::OPT_msse42, options::OPT_mno_sse42, "sse42" },
{ options::OPT_msse4a, options::OPT_mno_sse4a, "sse4a" },
{ options::OPT_m3dnow, options::OPT_mno_3dnow, "3dnow" },
{ options::OPT_m3dnowa, options::OPT_mno_3dnowa, "3dnowa" }
};
const unsigned NumFeatureOptions =
sizeof(FeatureOptions)/sizeof(FeatureOptions[0]);
// FIXME: Avoid std::string
std::string Attrs;
for (unsigned i=0; i < NumFeatureOptions; ++i) {
if (Args.hasArg(FeatureOptions[i].Pos)) {
Attrs += '+';
Attrs += FeatureOptions[i].Name;
} else if (Args.hasArg(FeatureOptions[i].Neg)) {
Attrs += '-';
Attrs += FeatureOptions[i].Name;
}
}
if (!Attrs.empty()) {
CmdArgs.push_back("--mattr");
CmdArgs.push_back(Args.MakeArgString(Attrs.c_str()));
}
if (Args.hasFlag(options::OPT_fmath_errno,
options::OPT_fno_math_errno,
getToolChain().IsMathErrnoDefault()))
CmdArgs.push_back("--fmath-errno=1");
else
CmdArgs.push_back("--fmath-errno=0");
if (Arg *A = Args.getLastArg(options::OPT_flimited_precision_EQ)) {
CmdArgs.push_back("--limit-float-precision");
CmdArgs.push_back(A->getValue(Args));
}
// FIXME: Add --stack-protector-buffer-size=<xxx> on
// -fstack-protect.
Args.AddLastArg(CmdArgs, options::OPT_MD);
Args.AddLastArg(CmdArgs, options::OPT_MM);
Args.AddAllArgs(CmdArgs, options::OPT_MF);
Args.AddLastArg(CmdArgs, options::OPT_MP);
Args.AddAllArgs(CmdArgs, options::OPT_MT);
Arg *Unsupported = Args.getLastArg(options::OPT_M);
if (!Unsupported)
Unsupported = Args.getLastArg(options::OPT_MM);
if (!Unsupported)
Unsupported = Args.getLastArg(options::OPT_MG);
if (!Unsupported)
Unsupported = Args.getLastArg(options::OPT_MQ);
if (Unsupported) {
const Driver &D = getToolChain().getHost().getDriver();
D.Diag(clang::diag::err_drv_unsupported_opt)
<< Unsupported->getOption().getName();
}
}
Args.AddAllArgs(CmdArgs, options::OPT_v);
Args.AddAllArgs(CmdArgs, options::OPT_D, options::OPT_U);
Args.AddAllArgs(CmdArgs, options::OPT_I_Group, options::OPT_F);
Args.AddLastArg(CmdArgs, options::OPT_P);
Args.AddAllArgs(CmdArgs, options::OPT_mmacosx_version_min_EQ);
// Special case debug options to only pass -g to clang. This is
// wrong.
if (Args.hasArg(options::OPT_g_Group))
CmdArgs.push_back("-g");
Args.AddLastArg(CmdArgs, options::OPT_nostdinc);
// FIXME: Clang isn't going to accept just anything here.
Args.AddAllArgs(CmdArgs, options::OPT_i_Group);
// Automatically load .pth or .gch files which match -include
// options. It's wonky, but we include looking for .gch so we can
// support seamless replacement into a build system already set up
// to be generating .gch files.
// FIXME: Need to use an iterator for this to be efficient.
for (ArgList::const_iterator
it = Args.begin(), ie = Args.end(); it != ie; ++it) {
const Arg *A = *it;
if (A->getOption().matches(options::OPT_include)) {
llvm::sys::Path P(A->getValue(Args));
P.appendSuffix("pth");
if (P.exists()) {
CmdArgs.push_back("-token-cache");
CmdArgs.push_back(Args.MakeArgString(P.c_str()));
} else {
P.eraseSuffix();
P.appendSuffix("gch");
if (P.exists()) {
CmdArgs.push_back("-token-cache");
CmdArgs.push_back(Args.MakeArgString(P.c_str()));
}
}
}
}
// Manually translate -O to -O1; let clang reject others.
if (Arg *A = Args.getLastArg(options::OPT_O)) {
if (A->getValue(Args)[0] == '\0')
CmdArgs.push_back("-O1");
else
A->render(Args, CmdArgs);
}
Args.AddAllArgs(CmdArgs, options::OPT_clang_W_Group, options::OPT_pedantic_Group);
Args.AddLastArg(CmdArgs, options::OPT_w);
Args.AddAllArgs(CmdArgs, options::OPT_std_EQ, options::OPT_ansi,
options::OPT_trigraphs);
if (Arg *A = Args.getLastArg(options::OPT_ftemplate_depth_)) {
CmdArgs.push_back("-ftemplate-depth");
CmdArgs.push_back(A->getValue(Args));
}
Args.AddAllArgs(CmdArgs, options::OPT_clang_f_Group);
Args.AddLastArg(CmdArgs, options::OPT_dM);
Args.AddAllArgValues(CmdArgs, options::OPT_Xclang);
// FIXME: Always pass the full triple once we aren't concerned with
// ccc compat.
CmdArgs.push_back("-arch");
CmdArgs.push_back(getToolChain().getArchName().c_str());
if (Output.isPipe()) {
CmdArgs.push_back("-o");
CmdArgs.push_back("-");
} else if (Output.isFilename()) {
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
} else {
assert(Output.isNothing() && "Invalid output.");
}
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
const InputInfo &II = *it;
CmdArgs.push_back("-x");
CmdArgs.push_back(types::getTypeName(II.getType()));
if (II.isPipe())
CmdArgs.push_back("-");
else if (II.isFilename())
CmdArgs.push_back(II.getFilename());
else
II.getInputArg().renderAsInput(Args, CmdArgs);
}
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath(C, "clang").c_str());
Dest.addCommand(new Command(Exec, CmdArgs));
}
void gcc::Common::ConstructJob(Compilation &C, const JobAction &JA,
Job &Dest,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
ArgStringList CmdArgs;
for (ArgList::const_iterator
it = Args.begin(), ie = Args.end(); it != ie; ++it) {
Arg *A = *it;
if (A->getOption().hasForwardToGCC()) {
// It is unfortunate that we have to claim here, as this means
// we will basically never report anything interesting for
// platforms using a generic gcc.
A->claim();
A->render(Args, CmdArgs);
}
}
RenderExtraToolArgs(CmdArgs);
// If using a driver driver, force the arch.
if (getToolChain().getHost().useDriverDriver()) {
CmdArgs.push_back("-arch");
CmdArgs.push_back(getToolChain().getArchName().c_str());
}
if (Output.isPipe()) {
CmdArgs.push_back("-o");
CmdArgs.push_back("-");
} else if (Output.isFilename()) {
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
} else {
assert(Output.isNothing() && "Unexpected output");
CmdArgs.push_back("-fsyntax-only");
}
// Only pass -x if gcc will understand it; otherwise hope gcc
// understands the suffix correctly. The main use case this would go
// wrong in is for linker inputs if they happened to have an odd
// suffix; really the only way to get this to happen is a command
// like '-x foobar a.c' which will treat a.c like a linker input.
//
// FIXME: For the linker case specifically, can we safely convert
// inputs into '-Wl,' options?
for (InputInfoList::const_iterator
it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
const InputInfo &II = *it;
if (types::canTypeBeUserSpecified(II.getType())) {
CmdArgs.push_back("-x");
CmdArgs.push_back(types::getTypeName(II.getType()));
}
if (II.isPipe())
CmdArgs.push_back("-");
else if (II.isFilename())
CmdArgs.push_back(II.getFilename());
else
// Don't render as input, we need gcc to do the translations.
II.getInputArg().render(Args, CmdArgs);
}
const char *Exec =
Args.MakeArgString(getToolChain().GetProgramPath(C, "gcc").c_str());
Dest.addCommand(new Command(Exec, CmdArgs));
}
void gcc::Preprocess::RenderExtraToolArgs(ArgStringList &CmdArgs) const {
CmdArgs.push_back("-E");
}
void gcc::Precompile::RenderExtraToolArgs(ArgStringList &CmdArgs) const {
// The type is good enough.
}
void gcc::Compile::RenderExtraToolArgs(ArgStringList &CmdArgs) const {
CmdArgs.push_back("-S");
}
void gcc::Assemble::RenderExtraToolArgs(ArgStringList &CmdArgs) const {
CmdArgs.push_back("-c");
}
void gcc::Link::RenderExtraToolArgs(ArgStringList &CmdArgs) const {
// The types are (hopefully) good enough.
}
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