1 //===--- Solaris.cpp - Solaris ToolChain Implementations --------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "Solaris.h" 10 #include "CommonArgs.h" 11 #include "clang/Basic/LangStandard.h" 12 #include "clang/Config/config.h" 13 #include "clang/Driver/Compilation.h" 14 #include "clang/Driver/Driver.h" 15 #include "clang/Driver/DriverDiagnostic.h" 16 #include "clang/Driver/Options.h" 17 #include "llvm/Option/ArgList.h" 18 #include "llvm/Support/FileSystem.h" 19 #include "llvm/Support/Path.h" 20 21 using namespace clang::driver; 22 using namespace clang::driver::tools; 23 using namespace clang::driver::toolchains; 24 using namespace clang; 25 using namespace llvm::opt; 26 27 void solaris::Assembler::ConstructJob(Compilation &C, const JobAction &JA, 28 const InputInfo &Output, 29 const InputInfoList &Inputs, 30 const ArgList &Args, 31 const char *LinkingOutput) const { 32 claimNoWarnArgs(Args); 33 ArgStringList CmdArgs; 34 35 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); 36 37 CmdArgs.push_back("-o"); 38 CmdArgs.push_back(Output.getFilename()); 39 40 for (const auto &II : Inputs) 41 CmdArgs.push_back(II.getFilename()); 42 43 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); 44 C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); 45 } 46 47 void solaris::Linker::ConstructJob(Compilation &C, const JobAction &JA, 48 const InputInfo &Output, 49 const InputInfoList &Inputs, 50 const ArgList &Args, 51 const char *LinkingOutput) const { 52 ArgStringList CmdArgs; 53 54 // Demangle C++ names in errors 55 CmdArgs.push_back("-C"); 56 57 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_shared)) { 58 CmdArgs.push_back("-e"); 59 CmdArgs.push_back("_start"); 60 } 61 62 if (Args.hasArg(options::OPT_static)) { 63 CmdArgs.push_back("-Bstatic"); 64 CmdArgs.push_back("-dn"); 65 } else { 66 CmdArgs.push_back("-Bdynamic"); 67 if (Args.hasArg(options::OPT_shared)) { 68 CmdArgs.push_back("-shared"); 69 } 70 71 // libpthread has been folded into libc since Solaris 10, no need to do 72 // anything for pthreads. Claim argument to avoid warning. 73 Args.ClaimAllArgs(options::OPT_pthread); 74 Args.ClaimAllArgs(options::OPT_pthreads); 75 } 76 77 if (Output.isFilename()) { 78 CmdArgs.push_back("-o"); 79 CmdArgs.push_back(Output.getFilename()); 80 } else { 81 assert(Output.isNothing() && "Invalid output."); 82 } 83 84 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { 85 if (!Args.hasArg(options::OPT_shared)) 86 CmdArgs.push_back( 87 Args.MakeArgString(getToolChain().GetFilePath("crt1.o"))); 88 89 CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crti.o"))); 90 91 const Arg *Std = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi); 92 bool HaveAnsi = false; 93 const LangStandard *LangStd = nullptr; 94 if (Std) { 95 HaveAnsi = Std->getOption().matches(options::OPT_ansi); 96 if (!HaveAnsi) 97 LangStd = LangStandard::getLangStandardForName(Std->getValue()); 98 } 99 100 const char *values_X = "values-Xa.o"; 101 // Use values-Xc.o for -ansi, -std=c*, -std=iso9899:199409. 102 if (HaveAnsi || (LangStd && !LangStd->isGNUMode())) 103 values_X = "values-Xc.o"; 104 CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath(values_X))); 105 106 const char *values_xpg = "values-xpg6.o"; 107 // Use values-xpg4.o for -std=c90, -std=gnu90, -std=iso9899:199409. 108 if (LangStd && LangStd->getLanguage() == Language::C && !LangStd->isC99()) 109 values_xpg = "values-xpg4.o"; 110 CmdArgs.push_back( 111 Args.MakeArgString(getToolChain().GetFilePath(values_xpg))); 112 CmdArgs.push_back( 113 Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o"))); 114 } 115 116 getToolChain().AddFilePathLibArgs(Args, CmdArgs); 117 118 Args.AddAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group, 119 options::OPT_e, options::OPT_r}); 120 121 bool NeedsSanitizerDeps = addSanitizerRuntimes(getToolChain(), Args, CmdArgs); 122 AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); 123 124 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { 125 if (getToolChain().ShouldLinkCXXStdlib(Args)) 126 getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs); 127 if (Args.hasArg(options::OPT_fstack_protector) || 128 Args.hasArg(options::OPT_fstack_protector_strong) || 129 Args.hasArg(options::OPT_fstack_protector_all)) { 130 // Explicitly link ssp libraries, not folded into Solaris libc. 131 CmdArgs.push_back("-lssp_nonshared"); 132 CmdArgs.push_back("-lssp"); 133 } 134 CmdArgs.push_back("-lgcc_s"); 135 CmdArgs.push_back("-lc"); 136 if (!Args.hasArg(options::OPT_shared)) { 137 CmdArgs.push_back("-lgcc"); 138 CmdArgs.push_back("-lm"); 139 } 140 if (NeedsSanitizerDeps) 141 linkSanitizerRuntimeDeps(getToolChain(), CmdArgs); 142 } 143 144 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { 145 CmdArgs.push_back( 146 Args.MakeArgString(getToolChain().GetFilePath("crtend.o"))); 147 } 148 CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o"))); 149 150 getToolChain().addProfileRTLibs(Args, CmdArgs); 151 152 const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); 153 C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); 154 } 155 156 static StringRef getSolarisLibSuffix(const llvm::Triple &Triple) { 157 switch (Triple.getArch()) { 158 case llvm::Triple::x86: 159 case llvm::Triple::sparc: 160 break; 161 case llvm::Triple::x86_64: 162 return "/amd64"; 163 case llvm::Triple::sparcv9: 164 return "/sparcv9"; 165 default: 166 llvm_unreachable("Unsupported architecture"); 167 } 168 return ""; 169 } 170 171 /// Solaris - Solaris tool chain which can call as(1) and ld(1) directly. 172 173 Solaris::Solaris(const Driver &D, const llvm::Triple &Triple, 174 const ArgList &Args) 175 : Generic_ELF(D, Triple, Args) { 176 177 GCCInstallation.init(Triple, Args); 178 179 StringRef LibSuffix = getSolarisLibSuffix(Triple); 180 path_list &Paths = getFilePaths(); 181 if (GCCInstallation.isValid()) { 182 // On Solaris gcc uses both an architecture-specific path with triple in it 183 // as well as a more generic lib path (+arch suffix). 184 addPathIfExists(D, 185 GCCInstallation.getInstallPath() + 186 GCCInstallation.getMultilib().gccSuffix(), 187 Paths); 188 addPathIfExists(D, GCCInstallation.getParentLibPath() + LibSuffix, Paths); 189 } 190 191 // If we are currently running Clang inside of the requested system root, 192 // add its parent library path to those searched. 193 if (StringRef(D.Dir).startswith(D.SysRoot)) 194 addPathIfExists(D, D.Dir + "/../lib", Paths); 195 196 addPathIfExists(D, D.SysRoot + "/usr/lib" + LibSuffix, Paths); 197 } 198 199 SanitizerMask Solaris::getSupportedSanitizers() const { 200 const bool IsX86 = getTriple().getArch() == llvm::Triple::x86; 201 const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64; 202 SanitizerMask Res = ToolChain::getSupportedSanitizers(); 203 // FIXME: Omit X86_64 until 64-bit support is figured out. 204 if (IsX86) { 205 Res |= SanitizerKind::Address; 206 Res |= SanitizerKind::PointerCompare; 207 Res |= SanitizerKind::PointerSubtract; 208 } 209 if (IsX86 || IsX86_64) 210 Res |= SanitizerKind::Function; 211 Res |= SanitizerKind::Vptr; 212 return Res; 213 } 214 215 Tool *Solaris::buildAssembler() const { 216 return new tools::solaris::Assembler(*this); 217 } 218 219 Tool *Solaris::buildLinker() const { return new tools::solaris::Linker(*this); } 220 221 void Solaris::AddClangSystemIncludeArgs(const ArgList &DriverArgs, 222 ArgStringList &CC1Args) const { 223 const Driver &D = getDriver(); 224 225 if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc)) 226 return; 227 228 if (!DriverArgs.hasArg(options::OPT_nostdlibinc)) 229 addSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/usr/local/include"); 230 231 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) { 232 SmallString<128> P(D.ResourceDir); 233 llvm::sys::path::append(P, "include"); 234 addSystemInclude(DriverArgs, CC1Args, P); 235 } 236 237 if (DriverArgs.hasArg(options::OPT_nostdlibinc)) 238 return; 239 240 // Check for configure-time C include directories. 241 StringRef CIncludeDirs(C_INCLUDE_DIRS); 242 if (CIncludeDirs != "") { 243 SmallVector<StringRef, 5> dirs; 244 CIncludeDirs.split(dirs, ":"); 245 for (StringRef dir : dirs) { 246 StringRef Prefix = 247 llvm::sys::path::is_absolute(dir) ? StringRef(D.SysRoot) : ""; 248 addExternCSystemInclude(DriverArgs, CC1Args, Prefix + dir); 249 } 250 return; 251 } 252 253 // Add include directories specific to the selected multilib set and multilib. 254 if (GCCInstallation.isValid()) { 255 const MultilibSet::IncludeDirsFunc &Callback = 256 Multilibs.includeDirsCallback(); 257 if (Callback) { 258 for (const auto &Path : Callback(GCCInstallation.getMultilib())) 259 addExternCSystemIncludeIfExists( 260 DriverArgs, CC1Args, GCCInstallation.getInstallPath() + Path); 261 } 262 } 263 264 addExternCSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/usr/include"); 265 } 266 267 void Solaris::addLibStdCxxIncludePaths( 268 const llvm::opt::ArgList &DriverArgs, 269 llvm::opt::ArgStringList &CC1Args) const { 270 // We need a detected GCC installation on Solaris (similar to Linux) 271 // to provide libstdc++'s headers. 272 if (!GCCInstallation.isValid()) 273 return; 274 275 // By default, look for the C++ headers in an include directory adjacent to 276 // the lib directory of the GCC installation. 277 // On Solaris this usually looks like /usr/gcc/X.Y/include/c++/X.Y.Z 278 StringRef LibDir = GCCInstallation.getParentLibPath(); 279 StringRef TripleStr = GCCInstallation.getTriple().str(); 280 const Multilib &Multilib = GCCInstallation.getMultilib(); 281 const GCCVersion &Version = GCCInstallation.getVersion(); 282 283 // The primary search for libstdc++ supports multiarch variants. 284 addLibStdCXXIncludePaths(LibDir.str() + "/../include", "/c++/" + Version.Text, 285 TripleStr, 286 /*GCCMultiarchTriple*/ "", 287 /*TargetMultiarchTriple*/ "", 288 Multilib.includeSuffix(), DriverArgs, CC1Args); 289 } 290