1 files changed, 289 insertions, 0 deletions
diff --git a/clang/lib/Driver/ToolChains/Solaris.cpp b/clang/lib/Driver/ToolChains/Solaris.cpp
new file mode 100644
index 000000000000..fc4e2cf151ef
--- /dev/null
+++ b/clang/lib/Driver/ToolChains/Solaris.cpp
@@ -0,0 +1,289 @@
+//===--- Solaris.cpp - Solaris 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 "Solaris.h"
+#include "CommonArgs.h"
+#include "clang/Basic/LangStandard.h"
+#include "clang/Config/config.h"
+#include "clang/Driver/Compilation.h"
+#include "clang/Driver/Driver.h"
+#include "clang/Driver/DriverDiagnostic.h"
+#include "clang/Driver/Options.h"
+#include "llvm/Option/ArgList.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Path.h"
+
+using namespace clang::driver;
+using namespace clang::driver::tools;
+using namespace clang::driver::toolchains;
+using namespace clang;
+using namespace llvm::opt;
+
+void solaris::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
+                                      const InputInfo &Output,
+                                      const InputInfoList &Inputs,
+                                      const ArgList &Args,
+                                      const char *LinkingOutput) const {
+  claimNoWarnArgs(Args);
+  ArgStringList CmdArgs;
+
+  Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
+
+  CmdArgs.push_back("-o");
+  CmdArgs.push_back(Output.getFilename());
+
+  for (const auto &II : Inputs)
+    CmdArgs.push_back(II.getFilename());
+
+  const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
+  C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
+}
+
+void solaris::Linker::ConstructJob(Compilation &C, const JobAction &JA,
+                                   const InputInfo &Output,
+                                   const InputInfoList &Inputs,
+                                   const ArgList &Args,
+                                   const char *LinkingOutput) const {
+  ArgStringList CmdArgs;
+
+  // Demangle C++ names in errors
+  CmdArgs.push_back("-C");
+
+  if (!Args.hasArg(options::OPT_nostdlib, options::OPT_shared)) {
+    CmdArgs.push_back("-e");
+    CmdArgs.push_back("_start");
+  }
+
+  if (Args.hasArg(options::OPT_static)) {
+    CmdArgs.push_back("-Bstatic");
+    CmdArgs.push_back("-dn");
+  } else {
+    CmdArgs.push_back("-Bdynamic");
+    if (Args.hasArg(options::OPT_shared)) {
+      CmdArgs.push_back("-shared");
+    }
+
+    // libpthread has been folded into libc since Solaris 10, no need to do
+    // anything for pthreads. Claim argument to avoid warning.
+    Args.ClaimAllArgs(options::OPT_pthread);
+    Args.ClaimAllArgs(options::OPT_pthreads);
+  }
+
+  if (Output.isFilename()) {
+    CmdArgs.push_back("-o");
+    CmdArgs.push_back(Output.getFilename());
+  } else {
+    assert(Output.isNothing() && "Invalid output.");
+  }
+
+  if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
+    if (!Args.hasArg(options::OPT_shared))
+      CmdArgs.push_back(
+          Args.MakeArgString(getToolChain().GetFilePath("crt1.o")));
+
+    CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crti.o")));
+
+    const Arg *Std = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi);
+    bool HaveAnsi = false;
+    const LangStandard *LangStd = nullptr;
+    if (Std) {
+      HaveAnsi = Std->getOption().matches(options::OPT_ansi);
+      if (!HaveAnsi)
+        LangStd = LangStandard::getLangStandardForName(Std->getValue());
+    }
+
+    const char *values_X = "values-Xa.o";
+    // Use values-Xc.o for -ansi, -std=c*, -std=iso9899:199409.
+    if (HaveAnsi || (LangStd && !LangStd->isGNUMode()))
+      values_X = "values-Xc.o";
+    CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath(values_X)));
+
+    const char *values_xpg = "values-xpg6.o";
+    // Use values-xpg4.o for -std=c90, -std=gnu90, -std=iso9899:199409.
+    if (LangStd && LangStd->getLanguage() == Language::C && !LangStd->isC99())
+      values_xpg = "values-xpg4.o";
+    CmdArgs.push_back(
+        Args.MakeArgString(getToolChain().GetFilePath(values_xpg)));
+    CmdArgs.push_back(
+        Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o")));
+  }
+
+  getToolChain().AddFilePathLibArgs(Args, CmdArgs);
+
+  Args.AddAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group,
+                            options::OPT_e, options::OPT_r});
+
+  bool NeedsSanitizerDeps = addSanitizerRuntimes(getToolChain(), Args, CmdArgs);
+  AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
+
+  if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
+    if (getToolChain().ShouldLinkCXXStdlib(Args))
+      getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);
+    if (Args.hasArg(options::OPT_fstack_protector) ||
+        Args.hasArg(options::OPT_fstack_protector_strong) ||
+        Args.hasArg(options::OPT_fstack_protector_all)) {
+      // Explicitly link ssp libraries, not folded into Solaris libc.
+      CmdArgs.push_back("-lssp_nonshared");
+      CmdArgs.push_back("-lssp");
+    }
+    CmdArgs.push_back("-lgcc_s");
+    CmdArgs.push_back("-lc");
+    if (!Args.hasArg(options::OPT_shared)) {
+      CmdArgs.push_back("-lgcc");
+      CmdArgs.push_back("-lm");
+    }
+    if (NeedsSanitizerDeps)
+      linkSanitizerRuntimeDeps(getToolChain(), CmdArgs);
+  }
+
+  if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
+    CmdArgs.push_back(
+        Args.MakeArgString(getToolChain().GetFilePath("crtend.o")));
+  }
+  CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o")));
+
+  getToolChain().addProfileRTLibs(Args, CmdArgs);
+
+  const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath());
+  C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
+}
+
+static StringRef getSolarisLibSuffix(const llvm::Triple &Triple) {
+  switch (Triple.getArch()) {
+  case llvm::Triple::x86:
+  case llvm::Triple::sparc:
+    break;
+  case llvm::Triple::x86_64:
+    return "/amd64";
+  case llvm::Triple::sparcv9:
+    return "/sparcv9";
+  default:
+    llvm_unreachable("Unsupported architecture");
+  }
+  return "";
+}
+
+/// Solaris - Solaris tool chain which can call as(1) and ld(1) directly.
+
+Solaris::Solaris(const Driver &D, const llvm::Triple &Triple,
+                 const ArgList &Args)
+    : Generic_ELF(D, Triple, Args) {
+
+  GCCInstallation.init(Triple, Args);
+
+  StringRef LibSuffix = getSolarisLibSuffix(Triple);
+  path_list &Paths = getFilePaths();
+  if (GCCInstallation.isValid()) {
+    // On Solaris gcc uses both an architecture-specific path with triple in it
+    // as well as a more generic lib path (+arch suffix).
+    addPathIfExists(D,
+                    GCCInstallation.getInstallPath() +
+                        GCCInstallation.getMultilib().gccSuffix(),
+                    Paths);
+    addPathIfExists(D, GCCInstallation.getParentLibPath() + LibSuffix, Paths);
+  }
+
+  // If we are currently running Clang inside of the requested system root,
+  // add its parent library path to those searched.
+  if (StringRef(D.Dir).startswith(D.SysRoot))
+    addPathIfExists(D, D.Dir + "/../lib", Paths);
+
+  addPathIfExists(D, D.SysRoot + "/usr/lib" + LibSuffix, Paths);
+}
+
+SanitizerMask Solaris::getSupportedSanitizers() const {
+  const bool IsX86 = getTriple().getArch() == llvm::Triple::x86;
+  const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64;
+  SanitizerMask Res = ToolChain::getSupportedSanitizers();
+  // FIXME: Omit X86_64 until 64-bit support is figured out.
+  if (IsX86) {
+    Res |= SanitizerKind::Address;
+    Res |= SanitizerKind::PointerCompare;
+    Res |= SanitizerKind::PointerSubtract;
+  }
+  if (IsX86 || IsX86_64)
+    Res |= SanitizerKind::Function;
+  Res |= SanitizerKind::Vptr;
+  return Res;
+}
+
+Tool *Solaris::buildAssembler() const {
+  return new tools::solaris::Assembler(*this);
+}
+
+Tool *Solaris::buildLinker() const { return new tools::solaris::Linker(*this); }
+
+void Solaris::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
+                                        ArgStringList &CC1Args) const {
+  const Driver &D = getDriver();
+
+  if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc))
+    return;
+
+  if (!DriverArgs.hasArg(options::OPT_nostdlibinc))
+    addSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/usr/local/include");
+
+  if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
+    SmallString<128> P(D.ResourceDir);
+    llvm::sys::path::append(P, "include");
+    addSystemInclude(DriverArgs, CC1Args, P);
+  }
+
+  if (DriverArgs.hasArg(options::OPT_nostdlibinc))
+    return;
+
+  // Check for configure-time C include directories.
+  StringRef CIncludeDirs(C_INCLUDE_DIRS);
+  if (CIncludeDirs != "") {
+    SmallVector<StringRef, 5> dirs;
+    CIncludeDirs.split(dirs, ":");
+    for (StringRef dir : dirs) {
+      StringRef Prefix =
+          llvm::sys::path::is_absolute(dir) ? StringRef(D.SysRoot) : "";
+      addExternCSystemInclude(DriverArgs, CC1Args, Prefix + dir);
+    }
+    return;
+  }
+
+  // Add include directories specific to the selected multilib set and multilib.
+  if (GCCInstallation.isValid()) {
+    const MultilibSet::IncludeDirsFunc &Callback =
+        Multilibs.includeDirsCallback();
+    if (Callback) {
+      for (const auto &Path : Callback(GCCInstallation.getMultilib()))
+        addExternCSystemIncludeIfExists(
+            DriverArgs, CC1Args, GCCInstallation.getInstallPath() + Path);
+    }
+  }
+
+  addExternCSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/usr/include");
+}
+
+void Solaris::addLibStdCxxIncludePaths(
+    const llvm::opt::ArgList &DriverArgs,
+    llvm::opt::ArgStringList &CC1Args) const {
+  // We need a detected GCC installation on Solaris (similar to Linux)
+  // to provide libstdc++'s headers.
+  if (!GCCInstallation.isValid())
+    return;
+
+  // By default, look for the C++ headers in an include directory adjacent to
+  // the lib directory of the GCC installation.
+  // On Solaris this usually looks like /usr/gcc/X.Y/include/c++/X.Y.Z
+  StringRef LibDir = GCCInstallation.getParentLibPath();
+  StringRef TripleStr = GCCInstallation.getTriple().str();
+  const Multilib &Multilib = GCCInstallation.getMultilib();
+  const GCCVersion &Version = GCCInstallation.getVersion();
+
+  // The primary search for libstdc++ supports multiarch variants.
+  addLibStdCXXIncludePaths(LibDir.str() + "/../include", "/c++/" + Version.Text,
+                           TripleStr,
+                           /*GCCMultiarchTriple*/ "",
+                           /*TargetMultiarchTriple*/ "",
+                           Multilib.includeSuffix(), DriverArgs, CC1Args);
+}