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/Config/config.h"
12 #include "clang/Driver/Compilation.h"
13 #include "clang/Driver/Driver.h"
14 #include "clang/Driver/DriverDiagnostic.h"
15 #include "clang/Driver/Options.h"
16 #include "llvm/Option/ArgList.h"
17 #include "llvm/Support/FileSystem.h"
18 #include "llvm/Support/Path.h"
20 using namespace clang::driver;
21 using namespace clang::driver::tools;
22 using namespace clang::driver::toolchains;
23 using namespace clang;
24 using namespace llvm::opt;
26 void solaris::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
27 const InputInfo &Output,
28 const InputInfoList &Inputs,
30 const char *LinkingOutput) const {
31 claimNoWarnArgs(Args);
32 ArgStringList CmdArgs;
34 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
36 CmdArgs.push_back("-o");
37 CmdArgs.push_back(Output.getFilename());
39 for (const auto &II : Inputs)
40 CmdArgs.push_back(II.getFilename());
42 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
43 C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
46 void solaris::Linker::ConstructJob(Compilation &C, const JobAction &JA,
47 const InputInfo &Output,
48 const InputInfoList &Inputs,
50 const char *LinkingOutput) const {
51 ArgStringList CmdArgs;
53 // Demangle C++ names in errors
54 CmdArgs.push_back("-C");
56 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_shared)) {
57 CmdArgs.push_back("-e");
58 CmdArgs.push_back("_start");
61 if (Args.hasArg(options::OPT_static)) {
62 CmdArgs.push_back("-Bstatic");
63 CmdArgs.push_back("-dn");
65 CmdArgs.push_back("-Bdynamic");
66 if (Args.hasArg(options::OPT_shared)) {
67 CmdArgs.push_back("-shared");
70 // libpthread has been folded into libc since Solaris 10, no need to do
71 // anything for pthreads. Claim argument to avoid warning.
72 Args.ClaimAllArgs(options::OPT_pthread);
73 Args.ClaimAllArgs(options::OPT_pthreads);
76 if (Output.isFilename()) {
77 CmdArgs.push_back("-o");
78 CmdArgs.push_back(Output.getFilename());
80 assert(Output.isNothing() && "Invalid output.");
83 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
84 if (!Args.hasArg(options::OPT_shared))
86 Args.MakeArgString(getToolChain().GetFilePath("crt1.o")));
88 CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crti.o")));
90 Args.MakeArgString(getToolChain().GetFilePath("values-Xa.o")));
92 Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o")));
95 getToolChain().AddFilePathLibArgs(Args, CmdArgs);
97 Args.AddAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group,
98 options::OPT_e, options::OPT_r});
100 bool NeedsSanitizerDeps = addSanitizerRuntimes(getToolChain(), Args, CmdArgs);
101 AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
103 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
104 if (getToolChain().ShouldLinkCXXStdlib(Args))
105 getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);
106 if (Args.hasArg(options::OPT_fstack_protector) ||
107 Args.hasArg(options::OPT_fstack_protector_strong) ||
108 Args.hasArg(options::OPT_fstack_protector_all)) {
109 // Explicitly link ssp libraries, not folded into Solaris libc.
110 CmdArgs.push_back("-lssp_nonshared");
111 CmdArgs.push_back("-lssp");
113 CmdArgs.push_back("-lgcc_s");
114 CmdArgs.push_back("-lc");
115 if (!Args.hasArg(options::OPT_shared)) {
116 CmdArgs.push_back("-lgcc");
117 CmdArgs.push_back("-lm");
119 if (NeedsSanitizerDeps)
120 linkSanitizerRuntimeDeps(getToolChain(), CmdArgs);
123 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
125 Args.MakeArgString(getToolChain().GetFilePath("crtend.o")));
127 CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o")));
129 getToolChain().addProfileRTLibs(Args, CmdArgs);
131 const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath());
132 C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
135 static StringRef getSolarisLibSuffix(const llvm::Triple &Triple) {
136 switch (Triple.getArch()) {
137 case llvm::Triple::x86:
138 case llvm::Triple::sparc:
140 case llvm::Triple::x86_64:
142 case llvm::Triple::sparcv9:
145 llvm_unreachable("Unsupported architecture");
150 /// Solaris - Solaris tool chain which can call as(1) and ld(1) directly.
152 Solaris::Solaris(const Driver &D, const llvm::Triple &Triple,
154 : Generic_ELF(D, Triple, Args) {
156 GCCInstallation.init(Triple, Args);
158 StringRef LibSuffix = getSolarisLibSuffix(Triple);
159 path_list &Paths = getFilePaths();
160 if (GCCInstallation.isValid()) {
161 // On Solaris gcc uses both an architecture-specific path with triple in it
162 // as well as a more generic lib path (+arch suffix).
164 GCCInstallation.getInstallPath() +
165 GCCInstallation.getMultilib().gccSuffix(),
167 addPathIfExists(D, GCCInstallation.getParentLibPath() + LibSuffix, Paths);
170 // If we are currently running Clang inside of the requested system root,
171 // add its parent library path to those searched.
172 if (StringRef(D.Dir).startswith(D.SysRoot))
173 addPathIfExists(D, D.Dir + "/../lib", Paths);
175 addPathIfExists(D, D.SysRoot + "/usr/lib" + LibSuffix, Paths);
178 SanitizerMask Solaris::getSupportedSanitizers() const {
179 const bool IsX86 = getTriple().getArch() == llvm::Triple::x86;
180 SanitizerMask Res = ToolChain::getSupportedSanitizers();
181 // FIXME: Omit X86_64 until 64-bit support is figured out.
183 Res |= SanitizerKind::Address;
184 Res |= SanitizerKind::PointerCompare;
185 Res |= SanitizerKind::PointerSubtract;
187 Res |= SanitizerKind::Vptr;
191 Tool *Solaris::buildAssembler() const {
192 return new tools::solaris::Assembler(*this);
195 Tool *Solaris::buildLinker() const { return new tools::solaris::Linker(*this); }
197 void Solaris::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
198 ArgStringList &CC1Args) const {
199 const Driver &D = getDriver();
201 if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc))
204 if (!DriverArgs.hasArg(options::OPT_nostdlibinc))
205 addSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/usr/local/include");
207 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
208 SmallString<128> P(D.ResourceDir);
209 llvm::sys::path::append(P, "include");
210 addSystemInclude(DriverArgs, CC1Args, P);
213 if (DriverArgs.hasArg(options::OPT_nostdlibinc))
216 // Check for configure-time C include directories.
217 StringRef CIncludeDirs(C_INCLUDE_DIRS);
218 if (CIncludeDirs != "") {
219 SmallVector<StringRef, 5> dirs;
220 CIncludeDirs.split(dirs, ":");
221 for (StringRef dir : dirs) {
223 llvm::sys::path::is_absolute(dir) ? StringRef(D.SysRoot) : "";
224 addExternCSystemInclude(DriverArgs, CC1Args, Prefix + dir);
229 // Add include directories specific to the selected multilib set and multilib.
230 if (GCCInstallation.isValid()) {
231 const MultilibSet::IncludeDirsFunc &Callback =
232 Multilibs.includeDirsCallback();
234 for (const auto &Path : Callback(GCCInstallation.getMultilib()))
235 addExternCSystemIncludeIfExists(
236 DriverArgs, CC1Args, GCCInstallation.getInstallPath() + Path);
240 addExternCSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/usr/include");
243 void Solaris::addLibStdCxxIncludePaths(
244 const llvm::opt::ArgList &DriverArgs,
245 llvm::opt::ArgStringList &CC1Args) const {
246 // We need a detected GCC installation on Solaris (similar to Linux)
247 // to provide libstdc++'s headers.
248 if (!GCCInstallation.isValid())
251 // By default, look for the C++ headers in an include directory adjacent to
252 // the lib directory of the GCC installation.
253 // On Solaris this usually looks like /usr/gcc/X.Y/include/c++/X.Y.Z
254 StringRef LibDir = GCCInstallation.getParentLibPath();
255 StringRef TripleStr = GCCInstallation.getTriple().str();
256 const Multilib &Multilib = GCCInstallation.getMultilib();
257 const GCCVersion &Version = GCCInstallation.getVersion();
259 // The primary search for libstdc++ supports multiarch variants.
260 addLibStdCXXIncludePaths(LibDir.str() + "/../include", "/c++/" + Version.Text,
262 /*GCCMultiarchTriple*/ "",
263 /*TargetMultiarchTriple*/ "",
264 Multilib.includeSuffix(), DriverArgs, CC1Args);