From: David Chisnall <csdavec@swan.ac.uk>
Date: Sat, 9 Nov 2013 15:10:56 +0000 (+0000)
Subject: Commit the changes to make libc++ the default on FreeBSD >= 10, rather than
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=1cc766fb3e62fedc5d99b103bcd0ec4aa3146859;p=clang

Commit the changes to make libc++ the default on FreeBSD >= 10, rather than
just the test...



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194333 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
index bec794e99d..8398471994 100644
--- a/lib/Driver/ToolChains.cpp
+++ b/lib/Driver/ToolChains.cpp
@@ -1935,6 +1935,43 @@ FreeBSD::FreeBSD(const Driver &D, const llvm::Triple& Triple, const ArgList &Arg
     getFilePaths().push_back(getDriver().SysRoot + "/usr/lib");
 }
 
+ToolChain::CXXStdlibType
+FreeBSD::GetCXXStdlibType(const ArgList &Args) const {
+  if (Arg *A = Args.getLastArg(options::OPT_stdlib_EQ)) {
+    StringRef Value = A->getValue();
+    if (Value == "libstdc++")
+      return ToolChain::CST_Libstdcxx;
+    if (Value == "libc++")
+      return ToolChain::CST_Libcxx;
+
+    getDriver().Diag(diag::err_drv_invalid_stdlib_name)
+      << A->getAsString(Args);
+  }
+  if (getTriple().getOSMajorVersion() >= 10) 
+    return ToolChain::CST_Libcxx;
+  return ToolChain::CST_Libstdcxx;
+}
+
+void FreeBSD::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
+                                           ArgStringList &CC1Args) const {
+  if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
+      DriverArgs.hasArg(options::OPT_nostdincxx))
+    return;
+
+  switch (GetCXXStdlibType(DriverArgs)) {
+  case ToolChain::CST_Libcxx:
+    addSystemInclude(DriverArgs, CC1Args,
+                     getDriver().SysRoot + "/usr/include/c++/v1");
+    break;
+  case ToolChain::CST_Libstdcxx:
+    addSystemInclude(DriverArgs, CC1Args,
+                     getDriver().SysRoot + "/usr/include/c++/4.2");
+    addSystemInclude(DriverArgs, CC1Args,
+                     getDriver().SysRoot + "/usr/include/c++/4.2/backward");
+    break;
+  }
+}
+
 Tool *FreeBSD::buildAssembler() const {
   return new tools::freebsd::Assemble(*this);
 }
diff --git a/lib/Driver/ToolChains.h b/lib/Driver/ToolChains.h
index b281c6da56..0e86f8c6fe 100644
--- a/lib/Driver/ToolChains.h
+++ b/lib/Driver/ToolChains.h
@@ -518,6 +518,12 @@ public:
   virtual bool IsMathErrnoDefault() const { return false; }
   virtual bool IsObjCNonFragileABIDefault() const { return true; }
 
+  virtual CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const;
+  virtual void
+  AddClangCXXStdlibIncludeArgs(const llvm::opt::ArgList &DriverArgs,
+                               llvm::opt::ArgStringList &CC1Args) const;
+
+
   virtual bool UseSjLjExceptions() const;
 protected:
   virtual Tool *buildAssembler() const;