forked from OSchip/llvm-project
235 lines
7.6 KiB
C++
235 lines
7.6 KiB
C++
//===--- OpenBSD.cpp - OpenBSD ToolChain Implementations --------*- C++ -*-===//
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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 "OpenBSD.h"
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#include "Arch/Mips.h"
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#include "Arch/Sparc.h"
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#include "CommonArgs.h"
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#include "clang/Driver/Compilation.h"
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#include "clang/Driver/Options.h"
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#include "llvm/Option/ArgList.h"
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using namespace clang::driver;
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using namespace clang::driver::tools;
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using namespace clang::driver::toolchains;
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using namespace clang;
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using namespace llvm::opt;
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void openbsd::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
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const InputInfo &Output,
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const InputInfoList &Inputs,
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const ArgList &Args,
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const char *LinkingOutput) const {
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claimNoWarnArgs(Args);
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ArgStringList CmdArgs;
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switch (getToolChain().getArch()) {
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case llvm::Triple::x86:
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// When building 32-bit code on OpenBSD/amd64, we have to explicitly
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// instruct as in the base system to assemble 32-bit code.
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CmdArgs.push_back("--32");
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break;
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case llvm::Triple::ppc:
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CmdArgs.push_back("-mppc");
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CmdArgs.push_back("-many");
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break;
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case llvm::Triple::sparc:
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case llvm::Triple::sparcel: {
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CmdArgs.push_back("-32");
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std::string CPU = getCPUName(Args, getToolChain().getTriple());
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CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
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AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
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break;
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}
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case llvm::Triple::sparcv9: {
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CmdArgs.push_back("-64");
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std::string CPU = getCPUName(Args, getToolChain().getTriple());
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CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
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AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
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break;
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}
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case llvm::Triple::mips64:
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case llvm::Triple::mips64el: {
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StringRef CPUName;
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StringRef ABIName;
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mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName);
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CmdArgs.push_back("-mabi");
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CmdArgs.push_back(mips::getGnuCompatibleMipsABIName(ABIName).data());
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if (getToolChain().getArch() == llvm::Triple::mips64)
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CmdArgs.push_back("-EB");
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else
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CmdArgs.push_back("-EL");
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AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
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break;
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}
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default:
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break;
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}
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Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
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CmdArgs.push_back("-o");
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CmdArgs.push_back(Output.getFilename());
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for (const auto &II : Inputs)
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CmdArgs.push_back(II.getFilename());
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const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
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C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
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}
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void openbsd::Linker::ConstructJob(Compilation &C, const JobAction &JA,
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const InputInfo &Output,
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const InputInfoList &Inputs,
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const ArgList &Args,
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const char *LinkingOutput) const {
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const Driver &D = getToolChain().getDriver();
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ArgStringList CmdArgs;
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// Silence warning for "clang -g foo.o -o foo"
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Args.ClaimAllArgs(options::OPT_g_Group);
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// and "clang -emit-llvm foo.o -o foo"
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Args.ClaimAllArgs(options::OPT_emit_llvm);
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// and for "clang -w foo.o -o foo". Other warning options are already
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// handled somewhere else.
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Args.ClaimAllArgs(options::OPT_w);
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if (getToolChain().getArch() == llvm::Triple::mips64)
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CmdArgs.push_back("-EB");
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else if (getToolChain().getArch() == llvm::Triple::mips64el)
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CmdArgs.push_back("-EL");
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if (!Args.hasArg(options::OPT_nostdlib, options::OPT_shared)) {
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CmdArgs.push_back("-e");
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CmdArgs.push_back("__start");
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}
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CmdArgs.push_back("--eh-frame-hdr");
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if (Args.hasArg(options::OPT_static)) {
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CmdArgs.push_back("-Bstatic");
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} else {
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if (Args.hasArg(options::OPT_rdynamic))
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CmdArgs.push_back("-export-dynamic");
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CmdArgs.push_back("-Bdynamic");
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if (Args.hasArg(options::OPT_shared)) {
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CmdArgs.push_back("-shared");
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} else {
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CmdArgs.push_back("-dynamic-linker");
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CmdArgs.push_back("/usr/libexec/ld.so");
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}
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}
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if (Args.hasArg(options::OPT_nopie))
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CmdArgs.push_back("-nopie");
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if (Output.isFilename()) {
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CmdArgs.push_back("-o");
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CmdArgs.push_back(Output.getFilename());
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} else {
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assert(Output.isNothing() && "Invalid output.");
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}
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if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
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if (!Args.hasArg(options::OPT_shared)) {
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if (Args.hasArg(options::OPT_pg))
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CmdArgs.push_back(
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Args.MakeArgString(getToolChain().GetFilePath("gcrt0.o")));
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else if (Args.hasArg(options::OPT_static) &&
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!Args.hasArg(options::OPT_nopie))
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CmdArgs.push_back(
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Args.MakeArgString(getToolChain().GetFilePath("rcrt0.o")));
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else
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CmdArgs.push_back(
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Args.MakeArgString(getToolChain().GetFilePath("crt0.o")));
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CmdArgs.push_back(
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Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o")));
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} else {
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CmdArgs.push_back(
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Args.MakeArgString(getToolChain().GetFilePath("crtbeginS.o")));
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}
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}
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std::string Triple = getToolChain().getTripleString();
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if (Triple.substr(0, 6) == "x86_64")
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Triple.replace(0, 6, "amd64");
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CmdArgs.push_back(
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Args.MakeArgString("-L/usr/lib/gcc-lib/" + Triple + "/4.2.1"));
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Args.AddAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group,
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options::OPT_e, options::OPT_s, options::OPT_t,
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options::OPT_Z_Flag, options::OPT_r});
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AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
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if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
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if (D.CCCIsCXX()) {
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getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);
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if (Args.hasArg(options::OPT_pg))
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CmdArgs.push_back("-lm_p");
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else
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CmdArgs.push_back("-lm");
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}
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// FIXME: For some reason GCC passes -lgcc before adding
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// the default system libraries. Just mimic this for now.
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CmdArgs.push_back("-lgcc");
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if (Args.hasArg(options::OPT_pthread)) {
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if (!Args.hasArg(options::OPT_shared) && Args.hasArg(options::OPT_pg))
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CmdArgs.push_back("-lpthread_p");
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else
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CmdArgs.push_back("-lpthread");
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}
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if (!Args.hasArg(options::OPT_shared)) {
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if (Args.hasArg(options::OPT_pg))
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CmdArgs.push_back("-lc_p");
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else
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CmdArgs.push_back("-lc");
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}
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CmdArgs.push_back("-lgcc");
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}
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if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
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if (!Args.hasArg(options::OPT_shared))
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CmdArgs.push_back(
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Args.MakeArgString(getToolChain().GetFilePath("crtend.o")));
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else
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CmdArgs.push_back(
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Args.MakeArgString(getToolChain().GetFilePath("crtendS.o")));
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}
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const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath());
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C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
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}
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/// OpenBSD - OpenBSD tool chain which can call as(1) and ld(1) directly.
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OpenBSD::OpenBSD(const Driver &D, const llvm::Triple &Triple,
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const ArgList &Args)
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: Generic_ELF(D, Triple, Args) {
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getFilePaths().push_back(getDriver().Dir + "/../lib");
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getFilePaths().push_back("/usr/lib");
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}
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Tool *OpenBSD::buildAssembler() const {
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return new tools::openbsd::Assembler(*this);
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}
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Tool *OpenBSD::buildLinker() const { return new tools::openbsd::Linker(*this); }
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