Driver: Stub out generic GCC tool chain implementation.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67107 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 66 insertions, 9 deletions

diff --git a/lib/Driver/HostInfo.cpp b/lib/Driver/HostInfo.cpp
index 9e8213876c..b98318dd26 100644
--- a/lib/Driver/HostInfo.cpp
+++ b/lib/Driver/HostInfo.cpp
@@ -17,6 +17,8 @@
 #include "llvm/ADT/StringMap.h"
 #include "llvm/Support/Compiler.h"
 
+#include "ToolChains.h"
+
 #include <cassert>
  
 using namespace clang::driver;
@@ -96,15 +98,14 @@ ToolChain *DarwinHostInfo::getToolChain(const ArgList &Args,
 
   ToolChain *&TC = ToolChains[ArchName];
   if (!TC) {
-    TC = 0;
-#if 0
-    if (ArchName == "i386")
-      TC = new Darwin_X86_ToolChain(ArchName);
-    else if (ArchName == "x86_64")
-      TC = new Darwin_X86_ToolChain(ArchName);
+    if (strcmp(ArchName, "i386") == 0 || strcmp(ArchName, "x86_64") == 0)
+      TC = new toolchains::Generic_GCC(*this, ArchName, 
+                                       getPlatformName().c_str(), 
+                                       getOSName().c_str());
     else
-      TC = new Darwin_GCC_ToolChain(ArchName);
-#endif
+      TC = new toolchains::Generic_GCC(*this, ArchName, 
+                                       getPlatformName().c_str(), 
+                                       getOSName().c_str());
   }
 
   return TC;
@@ -156,7 +157,9 @@ ToolChain *UnknownHostInfo::getToolChain(const ArgList &Args,
   
   ToolChain *&TC = ToolChains[ArchName];
   if (!TC)
-    TC = 0; //new Generic_GCC_ToolChain(ArchName);
+    TC = new toolchains::Generic_GCC(*this, ArchName, 
+                                     getPlatformName().c_str(), 
+                                     getOSName().c_str());
 
   return 0;
 }
diff --git a/lib/Driver/ToolChains.h b/lib/Driver/ToolChains.h
new file mode 100644
index 0000000000..a8360af359
--- /dev/null
+++ b/lib/Driver/ToolChains.h
@@ -0,0 +1,54 @@
+//===--- ToolChains.h - ToolChain Implementations ---------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CLANG_LIB_DRIVER_TOOLCHAINS_H_
+#define CLANG_LIB_DRIVER_TOOLCHAINS_H_
+
+#include "clang/Driver/ToolChain.h"
+
+#include "llvm/Support/Compiler.h"
+
+namespace clang {
+namespace driver {
+namespace toolchains VISIBILITY_HIDDEN {
+
+class Generic_GCC : public ToolChain {
+public:
+  Generic_GCC(const HostInfo &Host, const char *Arch, const char *Platform, 
+              const char *OS) : ToolChain(Host, Arch, Platform, OS) {
+  }
+
+  virtual ArgList *TranslateArgs(ArgList &Args) const { return &Args; }
+
+  virtual Tool &SelectTool(const Compilation &C, const JobAction &JA) const {
+    return *((Tool*) 0);
+  }
+
+  virtual bool IsMathErrnoDefault() const { return true; }
+
+  virtual bool IsUnwindTablesDefault() const { 
+    // FIXME: Gross; we should probably have some separate target definition,
+    // possibly even reusing the one in clang.
+    return getArchName() == "x86_64";
+  }
+
+  virtual const char *GetDefaultRelocationModel() const {
+    return "static";
+  }
+
+  virtual const char *GetForcedPicModel() const {
+    return 0;
+  }
+};
+
+} // end namespace toolchains
+} // end namespace driver
+} // end namespace clang
+
+#endif