forked from OSchip/llvm-project
292 lines
9.3 KiB
C++
292 lines
9.3 KiB
C++
//===-- CrossWindows.cpp - Cross Windows Tool Chain -----------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "CrossWindows.h"
|
|
#include "CommonArgs.h"
|
|
#include "clang/Driver/Compilation.h"
|
|
#include "clang/Driver/Driver.h"
|
|
#include "clang/Driver/Options.h"
|
|
#include "clang/Driver/SanitizerArgs.h"
|
|
#include "llvm/Option/ArgList.h"
|
|
#include "llvm/Support/Path.h"
|
|
|
|
using namespace clang::driver;
|
|
using namespace clang::driver::toolchains;
|
|
|
|
using llvm::opt::ArgList;
|
|
using llvm::opt::ArgStringList;
|
|
|
|
void tools::CrossWindows::Assembler::ConstructJob(
|
|
Compilation &C, const JobAction &JA, const InputInfo &Output,
|
|
const InputInfoList &Inputs, const ArgList &Args,
|
|
const char *LinkingOutput) const {
|
|
claimNoWarnArgs(Args);
|
|
const auto &TC =
|
|
static_cast<const toolchains::CrossWindowsToolChain &>(getToolChain());
|
|
ArgStringList CmdArgs;
|
|
const char *Exec;
|
|
|
|
switch (TC.getArch()) {
|
|
default:
|
|
llvm_unreachable("unsupported architecture");
|
|
case llvm::Triple::arm:
|
|
case llvm::Triple::thumb:
|
|
case llvm::Triple::aarch64:
|
|
break;
|
|
case llvm::Triple::x86:
|
|
CmdArgs.push_back("--32");
|
|
break;
|
|
case llvm::Triple::x86_64:
|
|
CmdArgs.push_back("--64");
|
|
break;
|
|
}
|
|
|
|
Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
|
|
|
|
CmdArgs.push_back("-o");
|
|
CmdArgs.push_back(Output.getFilename());
|
|
|
|
for (const auto &Input : Inputs)
|
|
CmdArgs.push_back(Input.getFilename());
|
|
|
|
const std::string Assembler = TC.GetProgramPath("as");
|
|
Exec = Args.MakeArgString(Assembler);
|
|
|
|
C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
|
|
}
|
|
|
|
void tools::CrossWindows::Linker::ConstructJob(
|
|
Compilation &C, const JobAction &JA, const InputInfo &Output,
|
|
const InputInfoList &Inputs, const ArgList &Args,
|
|
const char *LinkingOutput) const {
|
|
const auto &TC =
|
|
static_cast<const toolchains::CrossWindowsToolChain &>(getToolChain());
|
|
const llvm::Triple &T = TC.getTriple();
|
|
const Driver &D = TC.getDriver();
|
|
SmallString<128> EntryPoint;
|
|
ArgStringList CmdArgs;
|
|
const char *Exec;
|
|
|
|
// Silence warning for "clang -g foo.o -o foo"
|
|
Args.ClaimAllArgs(options::OPT_g_Group);
|
|
// and "clang -emit-llvm foo.o -o foo"
|
|
Args.ClaimAllArgs(options::OPT_emit_llvm);
|
|
// and for "clang -w foo.o -o foo"
|
|
Args.ClaimAllArgs(options::OPT_w);
|
|
// Other warning options are already handled somewhere else.
|
|
|
|
if (!D.SysRoot.empty())
|
|
CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
|
|
|
|
if (Args.hasArg(options::OPT_pie))
|
|
CmdArgs.push_back("-pie");
|
|
if (Args.hasArg(options::OPT_rdynamic))
|
|
CmdArgs.push_back("-export-dynamic");
|
|
if (Args.hasArg(options::OPT_s))
|
|
CmdArgs.push_back("--strip-all");
|
|
|
|
CmdArgs.push_back("-m");
|
|
switch (TC.getArch()) {
|
|
default:
|
|
llvm_unreachable("unsupported architecture");
|
|
case llvm::Triple::arm:
|
|
case llvm::Triple::thumb:
|
|
// FIXME: this is incorrect for WinCE
|
|
CmdArgs.push_back("thumb2pe");
|
|
break;
|
|
case llvm::Triple::aarch64:
|
|
CmdArgs.push_back("arm64pe");
|
|
break;
|
|
case llvm::Triple::x86:
|
|
CmdArgs.push_back("i386pe");
|
|
EntryPoint.append("_");
|
|
break;
|
|
case llvm::Triple::x86_64:
|
|
CmdArgs.push_back("i386pep");
|
|
break;
|
|
}
|
|
|
|
if (Args.hasArg(options::OPT_shared)) {
|
|
switch (T.getArch()) {
|
|
default:
|
|
llvm_unreachable("unsupported architecture");
|
|
case llvm::Triple::aarch64:
|
|
case llvm::Triple::arm:
|
|
case llvm::Triple::thumb:
|
|
case llvm::Triple::x86_64:
|
|
EntryPoint.append("_DllMainCRTStartup");
|
|
break;
|
|
case llvm::Triple::x86:
|
|
EntryPoint.append("_DllMainCRTStartup@12");
|
|
break;
|
|
}
|
|
|
|
CmdArgs.push_back("-shared");
|
|
CmdArgs.push_back(Args.hasArg(options::OPT_static) ? "-Bstatic"
|
|
: "-Bdynamic");
|
|
|
|
CmdArgs.push_back("--enable-auto-image-base");
|
|
|
|
CmdArgs.push_back("--entry");
|
|
CmdArgs.push_back(Args.MakeArgString(EntryPoint));
|
|
} else {
|
|
EntryPoint.append("mainCRTStartup");
|
|
|
|
CmdArgs.push_back(Args.hasArg(options::OPT_static) ? "-Bstatic"
|
|
: "-Bdynamic");
|
|
|
|
if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
|
|
CmdArgs.push_back("--entry");
|
|
CmdArgs.push_back(Args.MakeArgString(EntryPoint));
|
|
}
|
|
|
|
// FIXME: handle subsystem
|
|
}
|
|
|
|
// NOTE: deal with multiple definitions on Windows (e.g. COMDAT)
|
|
CmdArgs.push_back("--allow-multiple-definition");
|
|
|
|
CmdArgs.push_back("-o");
|
|
CmdArgs.push_back(Output.getFilename());
|
|
|
|
if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_rdynamic)) {
|
|
SmallString<261> ImpLib(Output.getFilename());
|
|
llvm::sys::path::replace_extension(ImpLib, ".lib");
|
|
|
|
CmdArgs.push_back("--out-implib");
|
|
CmdArgs.push_back(Args.MakeArgString(ImpLib));
|
|
}
|
|
|
|
Args.AddAllArgs(CmdArgs, options::OPT_L);
|
|
TC.AddFilePathLibArgs(Args, CmdArgs);
|
|
AddLinkerInputs(TC, Inputs, Args, CmdArgs, JA);
|
|
|
|
if (TC.ShouldLinkCXXStdlib(Args)) {
|
|
bool StaticCXX = Args.hasArg(options::OPT_static_libstdcxx) &&
|
|
!Args.hasArg(options::OPT_static);
|
|
if (StaticCXX)
|
|
CmdArgs.push_back("-Bstatic");
|
|
TC.AddCXXStdlibLibArgs(Args, CmdArgs);
|
|
if (StaticCXX)
|
|
CmdArgs.push_back("-Bdynamic");
|
|
}
|
|
|
|
if (!Args.hasArg(options::OPT_nostdlib)) {
|
|
if (!Args.hasArg(options::OPT_nodefaultlibs)) {
|
|
// TODO handle /MT[d] /MD[d]
|
|
CmdArgs.push_back("-lmsvcrt");
|
|
AddRunTimeLibs(TC, D, CmdArgs, Args);
|
|
}
|
|
}
|
|
|
|
if (TC.getSanitizerArgs().needsAsanRt()) {
|
|
// TODO handle /MT[d] /MD[d]
|
|
if (Args.hasArg(options::OPT_shared)) {
|
|
CmdArgs.push_back(TC.getCompilerRTArgString(Args, "asan_dll_thunk"));
|
|
} else {
|
|
for (const auto &Lib : {"asan_dynamic", "asan_dynamic_runtime_thunk"})
|
|
CmdArgs.push_back(TC.getCompilerRTArgString(Args, Lib));
|
|
// Make sure the dynamic runtime thunk is not optimized out at link time
|
|
// to ensure proper SEH handling.
|
|
CmdArgs.push_back(Args.MakeArgString("--undefined"));
|
|
CmdArgs.push_back(Args.MakeArgString(TC.getArch() == llvm::Triple::x86
|
|
? "___asan_seh_interceptor"
|
|
: "__asan_seh_interceptor"));
|
|
}
|
|
}
|
|
|
|
Exec = Args.MakeArgString(TC.GetLinkerPath());
|
|
|
|
C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
|
|
}
|
|
|
|
CrossWindowsToolChain::CrossWindowsToolChain(const Driver &D,
|
|
const llvm::Triple &T,
|
|
const llvm::opt::ArgList &Args)
|
|
: Generic_GCC(D, T, Args) {}
|
|
|
|
bool CrossWindowsToolChain::IsUnwindTablesDefault(const ArgList &Args) const {
|
|
// FIXME: all non-x86 targets need unwind tables, however, LLVM currently does
|
|
// not know how to emit them.
|
|
return getArch() == llvm::Triple::x86_64;
|
|
}
|
|
|
|
bool CrossWindowsToolChain::isPICDefault() const {
|
|
return getArch() == llvm::Triple::x86_64;
|
|
}
|
|
|
|
bool CrossWindowsToolChain::isPIEDefault() const {
|
|
return getArch() == llvm::Triple::x86_64;
|
|
}
|
|
|
|
bool CrossWindowsToolChain::isPICDefaultForced() const {
|
|
return getArch() == llvm::Triple::x86_64;
|
|
}
|
|
|
|
void CrossWindowsToolChain::
|
|
AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs,
|
|
llvm::opt::ArgStringList &CC1Args) const {
|
|
const Driver &D = getDriver();
|
|
const std::string &SysRoot = D.SysRoot;
|
|
|
|
auto AddSystemAfterIncludes = [&]() {
|
|
for (const auto &P : DriverArgs.getAllArgValues(options::OPT_isystem_after))
|
|
addSystemInclude(DriverArgs, CC1Args, P);
|
|
};
|
|
|
|
if (DriverArgs.hasArg(options::OPT_nostdinc)) {
|
|
AddSystemAfterIncludes();
|
|
return;
|
|
}
|
|
|
|
addSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/local/include");
|
|
if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
|
|
SmallString<128> ResourceDir(D.ResourceDir);
|
|
llvm::sys::path::append(ResourceDir, "include");
|
|
addSystemInclude(DriverArgs, CC1Args, ResourceDir);
|
|
}
|
|
AddSystemAfterIncludes();
|
|
addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/include");
|
|
}
|
|
|
|
void CrossWindowsToolChain::
|
|
AddClangCXXStdlibIncludeArgs(const llvm::opt::ArgList &DriverArgs,
|
|
llvm::opt::ArgStringList &CC1Args) const {
|
|
const std::string &SysRoot = getDriver().SysRoot;
|
|
|
|
if (DriverArgs.hasArg(options::OPT_nostdinc) ||
|
|
DriverArgs.hasArg(options::OPT_nostdincxx))
|
|
return;
|
|
|
|
if (GetCXXStdlibType(DriverArgs) == ToolChain::CST_Libcxx)
|
|
addSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/include/c++/v1");
|
|
}
|
|
|
|
void CrossWindowsToolChain::
|
|
AddCXXStdlibLibArgs(const llvm::opt::ArgList &DriverArgs,
|
|
llvm::opt::ArgStringList &CC1Args) const {
|
|
if (GetCXXStdlibType(DriverArgs) == ToolChain::CST_Libcxx)
|
|
CC1Args.push_back("-lc++");
|
|
}
|
|
|
|
clang::SanitizerMask CrossWindowsToolChain::getSupportedSanitizers() const {
|
|
SanitizerMask Res = ToolChain::getSupportedSanitizers();
|
|
Res |= SanitizerKind::Address;
|
|
Res |= SanitizerKind::PointerCompare;
|
|
Res |= SanitizerKind::PointerSubtract;
|
|
return Res;
|
|
}
|
|
|
|
Tool *CrossWindowsToolChain::buildLinker() const {
|
|
return new tools::CrossWindows::Linker(*this);
|
|
}
|
|
|
|
Tool *CrossWindowsToolChain::buildAssembler() const {
|
|
return new tools::CrossWindows::Assembler(*this);
|
|
}
|