1 //===--- Solaris.cpp - Solaris ToolChain Implementations --------*- C++ -*-===//
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
7 //===----------------------------------------------------------------------===//
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"
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;
27 void solaris::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
28 const InputInfo &Output,
29 const InputInfoList &Inputs,
31 const char *LinkingOutput) const {
32 claimNoWarnArgs(Args);
33 ArgStringList CmdArgs;
35 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
37 CmdArgs.push_back("-o");
38 CmdArgs.push_back(Output.getFilename());
40 for (const auto &II : Inputs)
41 CmdArgs.push_back(II.getFilename());
43 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
44 C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
47 void solaris::Linker::ConstructJob(Compilation &C, const JobAction &JA,
48 const InputInfo &Output,
49 const InputInfoList &Inputs,
51 const char *LinkingOutput) const {
52 ArgStringList CmdArgs;
54 // Demangle C++ names in errors
55 CmdArgs.push_back("-C");
57 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_shared)) {
58 CmdArgs.push_back("-e");
59 CmdArgs.push_back("_start");
62 if (Args.hasArg(options::OPT_static)) {
63 CmdArgs.push_back("-Bstatic");
64 CmdArgs.push_back("-dn");
66 CmdArgs.push_back("-Bdynamic");
67 if (Args.hasArg(options::OPT_shared)) {
68 CmdArgs.push_back("-shared");
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);
77 if (Output.isFilename()) {
78 CmdArgs.push_back("-o");
79 CmdArgs.push_back(Output.getFilename());
81 assert(Output.isNothing() && "Invalid output.");
84 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
85 if (!Args.hasArg(options::OPT_shared))
87 Args.MakeArgString(getToolChain().GetFilePath("crt1.o")));
89 CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crti.o")));
91 const Arg *Std = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi);
92 bool HaveAnsi = false;
93 const LangStandard *LangStd = nullptr;
95 HaveAnsi = Std->getOption().matches(options::OPT_ansi);
97 LangStd = LangStandard::getLangStandardForName(Std->getValue());
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)));
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";
111 Args.MakeArgString(getToolChain().GetFilePath(values_xpg)));
113 Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o")));
116 getToolChain().AddFilePathLibArgs(Args, CmdArgs);
118 Args.AddAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group,
119 options::OPT_e, options::OPT_r});
121 bool NeedsSanitizerDeps = addSanitizerRuntimes(getToolChain(), Args, CmdArgs);
122 AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
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");
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");
140 if (NeedsSanitizerDeps)
141 linkSanitizerRuntimeDeps(getToolChain(), CmdArgs);
144 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
146 Args.MakeArgString(getToolChain().GetFilePath("crtend.o")));
148 CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o")));
150 getToolChain().addProfileRTLibs(Args, CmdArgs);
152 const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath());
153 C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
156 static StringRef getSolarisLibSuffix(const llvm::Triple &Triple) {
157 switch (Triple.getArch()) {
158 case llvm::Triple::x86:
159 case llvm::Triple::sparc:
161 case llvm::Triple::x86_64:
163 case llvm::Triple::sparcv9:
166 llvm_unreachable("Unsupported architecture");
171 /// Solaris - Solaris tool chain which can call as(1) and ld(1) directly.
173 Solaris::Solaris(const Driver &D, const llvm::Triple &Triple,
175 : Generic_ELF(D, Triple, Args) {
177 GCCInstallation.init(Triple, Args);
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).
185 GCCInstallation.getInstallPath() +
186 GCCInstallation.getMultilib().gccSuffix(),
188 addPathIfExists(D, GCCInstallation.getParentLibPath() + LibSuffix, Paths);
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);
196 addPathIfExists(D, D.SysRoot + "/usr/lib" + LibSuffix, Paths);
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.
205 Res |= SanitizerKind::Address;
206 Res |= SanitizerKind::PointerCompare;
207 Res |= SanitizerKind::PointerSubtract;
209 if (IsX86 || IsX86_64)
210 Res |= SanitizerKind::Function;
211 Res |= SanitizerKind::Vptr;
215 Tool *Solaris::buildAssembler() const {
216 return new tools::solaris::Assembler(*this);
219 Tool *Solaris::buildLinker() const { return new tools::solaris::Linker(*this); }
221 void Solaris::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
222 ArgStringList &CC1Args) const {
223 const Driver &D = getDriver();
225 if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc))
228 if (!DriverArgs.hasArg(options::OPT_nostdlibinc))
229 addSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/usr/local/include");
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);
237 if (DriverArgs.hasArg(options::OPT_nostdlibinc))
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) {
247 llvm::sys::path::is_absolute(dir) ? StringRef(D.SysRoot) : "";
248 addExternCSystemInclude(DriverArgs, CC1Args, Prefix + dir);
253 // Add include directories specific to the selected multilib set and multilib.
254 if (GCCInstallation.isValid()) {
255 const MultilibSet::IncludeDirsFunc &Callback =
256 Multilibs.includeDirsCallback();
258 for (const auto &Path : Callback(GCCInstallation.getMultilib()))
259 addExternCSystemIncludeIfExists(
260 DriverArgs, CC1Args, GCCInstallation.getInstallPath() + Path);
264 addExternCSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/usr/include");
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())
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();
283 // The primary search for libstdc++ supports multiarch variants.
284 addLibStdCXXIncludePaths(LibDir.str() + "/../include", "/c++/" + Version.Text,
286 /*GCCMultiarchTriple*/ "",
287 /*TargetMultiarchTriple*/ "",
288 Multilib.includeSuffix(), DriverArgs, CC1Args);