Driver: Allow -ccc-gcc-name to specify the name/path to use when

calling gcc in generic configurations.

llvm-svn: 68260

clang/include/clang/Driver/Driver.h

@@ -78,6 +78,9 @@ public:
   /// Only print tool bindings, don't build any jobs.
   bool CCCPrintBindings : 1;
 
+  /// Name to use when calling the generic gcc.
+  std::string CCCGenericGCCName;
+
 private:
   /// Use the clang compiler where possible.
   bool CCCUseClang : 1;

clang/lib/Driver/Driver.cpp

@@ -44,7 +44,8 @@ Driver::Driver(const char *_Name, const char *_Dir,
     DefaultImageName(_DefaultImageName),
     Host(0),
     CCCIsCXX(false), CCCEcho(false), CCCPrintBindings(false),
-    CCCUseClang(true), CCCUseClangCXX(false), CCCUseClangCPP(true),
+    CCCGenericGCCName("gcc"), CCCUseClang(true), CCCUseClangCXX(false), 
+    CCCUseClangCPP(true),
     SuppressMissingInputWarning(false)
 {
   // Only use clang on i386 and x86_64 by default.
@@ -137,6 +138,10 @@ Compilation *Driver::BuildCompilation(int argc, const char **argv) {
     } else if (!strcmp(Opt, "echo")) {
       CCCEcho = true;
       
+    } else if (!strcmp(Opt, "gcc-name")) {
+      assert(Start+1 < End && "FIXME: -ccc- argument handling.");
+      CCCGenericGCCName = *++Start;
+
     } else if (!strcmp(Opt, "clang-cxx")) {
       CCCUseClangCXX = true;
     } else if (!strcmp(Opt, "no-clang")) {

clang/lib/Driver/Tools.cpp

@@ -500,8 +500,10 @@ void gcc::Common::ConstructJob(Compilation &C, const JobAction &JA,
       II.getInputArg().render(Args, CmdArgs);
   }
 
+  const char *GCCName = 
+    getToolChain().getHost().getDriver().CCCGenericGCCName.c_str();
   const char *Exec = 
-    Args.MakeArgString(getToolChain().GetProgramPath(C, "gcc").c_str());
+    Args.MakeArgString(getToolChain().GetProgramPath(C, GCCName).c_str());
   Dest.addCommand(new Command(Exec, CmdArgs));
 }