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//===--- VE.cpp - VE ToolChain Implementations ------------------*- C++ -*-===//
//
// 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 "VEToolchain.h"
#include "CommonArgs.h"
#include "clang/Driver/Compilation.h"
#include "clang/Driver/Driver.h"
#include "clang/Driver/Options.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
#include <cstdlib> // ::getenv
using namespace clang::driver;
using namespace clang::driver::toolchains;
using namespace clang;
using namespace llvm::opt;
/// VE tool chain
VEToolChain::VEToolChain(const Driver &D, const llvm::Triple &Triple,
const ArgList &Args)
: Linux(D, Triple, Args) {
getProgramPaths().push_back("/opt/nec/ve/bin");
// ProgramPaths are found via 'PATH' environment variable.
// Default library paths are following:
// ${RESOURCEDIR}/lib/ve-unknown-linux-gnu,
// These are OK.
// Default file paths are following:
// ${RESOURCEDIR}/lib/linux/ve, (== getArchSpecificLibPath)
// /lib/../lib64,
// /usr/lib/../lib64,
// ${BINPATH}/../lib,
// /lib,
// /usr/lib,
// These are OK for host, but no go for VE.
// Define file paths from scratch here.
getFilePaths().clear();
// Add library directories:
// ${BINPATH}/../lib/ve-unknown-linux-gnu, (== getStdlibPath)
// ${RESOURCEDIR}/lib/linux/ve, (== getArchSpecificLibPath)
// ${SYSROOT}/opt/nec/ve/lib,
for (auto &Path : getStdlibPaths())
getFilePaths().push_back(std::move(Path));
getFilePaths().push_back(getArchSpecificLibPath());
getFilePaths().push_back(computeSysRoot() + "/opt/nec/ve/lib");
}
Tool *VEToolChain::buildAssembler() const {
return new tools::gnutools::Assembler(*this);
}
Tool *VEToolChain::buildLinker() const {
return new tools::gnutools::Linker(*this);
}
bool VEToolChain::isPICDefault() const { return false; }
bool VEToolChain::isPIEDefault(const llvm::opt::ArgList &Args) const {
return false;
}
bool VEToolChain::isPICDefaultForced() const { return false; }
bool VEToolChain::SupportsProfiling() const { return false; }
bool VEToolChain::hasBlocksRuntime() const { return false; }
void VEToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
ArgStringList &CC1Args) const {
if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc))
return;
if (DriverArgs.hasArg(options::OPT_nobuiltininc) &&
DriverArgs.hasArg(options::OPT_nostdlibinc))
return;
if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
SmallString<128> P(getDriver().ResourceDir);
llvm::sys::path::append(P, "include");
addSystemInclude(DriverArgs, CC1Args, P);
}
if (!DriverArgs.hasArg(options::OPT_nostdlibinc)) {
if (const char *cl_include_dir = getenv("NCC_C_INCLUDE_PATH")) {
SmallVector<StringRef, 4> Dirs;
const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator, '\0'};
StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr));
ArrayRef<StringRef> DirVec(Dirs);
addSystemIncludes(DriverArgs, CC1Args, DirVec);
} else {
addSystemInclude(DriverArgs, CC1Args,
getDriver().SysRoot + "/opt/nec/ve/include");
}
}
}
void VEToolChain::addClangTargetOptions(const ArgList &DriverArgs,
ArgStringList &CC1Args,
Action::OffloadKind) const {
CC1Args.push_back("-nostdsysteminc");
bool UseInitArrayDefault = true;
if (!DriverArgs.hasFlag(options::OPT_fuse_init_array,
options::OPT_fno_use_init_array, UseInitArrayDefault))
CC1Args.push_back("-fno-use-init-array");
}
void VEToolChain::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
ArgStringList &CC1Args) const {
if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc) ||
DriverArgs.hasArg(options::OPT_nostdlibinc) ||
DriverArgs.hasArg(options::OPT_nostdincxx))
return;
if (const char *cl_include_dir = getenv("NCC_CPLUS_INCLUDE_PATH")) {
SmallVector<StringRef, 4> Dirs;
const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator, '\0'};
StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr));
ArrayRef<StringRef> DirVec(Dirs);
addSystemIncludes(DriverArgs, CC1Args, DirVec);
} else {
// Add following paths for multiple target installation.
// ${INSTALLDIR}/include/ve-unknown-linux-gnu/c++/v1,
// ${INSTALLDIR}/include/c++/v1,
addLibCxxIncludePaths(DriverArgs, CC1Args);
}
}
void VEToolChain::AddCXXStdlibLibArgs(const ArgList &Args,
ArgStringList &CmdArgs) const {
assert((GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) &&
"Only -lc++ (aka libxx) is supported in this toolchain.");
tools::addArchSpecificRPath(*this, Args, CmdArgs);
CmdArgs.push_back("-lc++");
if (Args.hasArg(options::OPT_fexperimental_library))
CmdArgs.push_back("-lc++experimental");
CmdArgs.push_back("-lc++abi");
CmdArgs.push_back("-lunwind");
// libc++ requires -lpthread under glibc environment
CmdArgs.push_back("-lpthread");
// libunwind requires -ldl under glibc environment
CmdArgs.push_back("-ldl");
}
llvm::ExceptionHandling
VEToolChain::GetExceptionModel(const ArgList &Args) const {
// VE uses SjLj exceptions.
return llvm::ExceptionHandling::SjLj;
}
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