Driver: Add darwin::Link tool.

 - <rdar://problem/6717381> [driver] implement ld argument translation
   in new driver


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67760 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 25 insertions, 4 deletions

diff --git a/lib/Driver/ToolChains.h b/lib/Driver/ToolChains.h
index 7548b9ec53..5e7bdb5f7b 100644
--- a/lib/Driver/ToolChains.h
+++ b/lib/Driver/ToolChains.h
@@ -56,7 +56,11 @@ class VISIBILITY_HIDDEN Darwin_X86 : public ToolChain {
   /// The directory suffix for this tool chain.
   std::string ToolChainDir;
 
-  std::string getMacosxVersionMin() const;
+  /// The default macosx-version-min of this tool chain; empty until
+  /// initialized.
+  mutable std::string MacosxVersionMin;
+
+  const char *getMacosxVersionMin() const;
 
 public:
   Darwin_X86(const HostInfo &Host, const char *Arch, const char *Platform, 
@@ -64,6 +68,26 @@ public:
              const unsigned (&GCCVersion)[3]);
   ~Darwin_X86();
 
+  void getDarwinVersion(unsigned (&Res)[3]) const {
+    Res[0] = DarwinVersion[0];
+    Res[1] = DarwinVersion[1];
+    Res[2] = DarwinVersion[2];
+  }
+
+  void getMacosxVersion(unsigned (&Res)[3]) const {
+    Res[0] = 10;
+    Res[1] = DarwinVersion[0] - 4;
+    Res[2] = DarwinVersion[1];
+  }
+
+  const char *getMacosxVersionStr() const {
+    return MacosxVersionMin.c_str();
+  }
+
+  const std::string &getToolChainDir() const { 
+    return ToolChainDir;
+  }
+
   virtual DerivedArgList *TranslateArgs(InputArgList &Args) const;
 
   virtual Tool &SelectTool(const Compilation &C, const JobAction &JA) const;
@@ -72,9 +96,6 @@ public:
   virtual bool IsUnwindTablesDefault() const;
   virtual const char *GetDefaultRelocationModel() const;
   virtual const char *GetForcedPicModel() const;
-
-private:
-  const std::string &getToolChainDir() const { return ToolChainDir; }
 };
 
   /// Darwin_GCC - Generic Darwin tool chain using gcc.