Driver/Darwin: Support -Wl, with -Xarch_. This doesn't work naturally because of

the special way we model "linker input" arguments.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126023 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 19 insertions, 0 deletions

diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
index 236a1549eb..13b8b4609e 100644
--- a/lib/Driver/ToolChains.cpp
+++ b/lib/Driver/ToolChains.cpp
@@ -699,6 +699,7 @@ DerivedArgList *Darwin::TranslateArgs(const DerivedArgList &Args,
       if (getArchName() != A->getValue(Args, 0))
         continue;
 
+      Arg *OriginalArg = A;
       unsigned Index = Args.getBaseArgs().MakeIndex(A->getValue(Args, 1));
       unsigned Prev = Index;
       Arg *XarchArg = Opts.ParseOneArg(Args, Index);
@@ -722,6 +723,20 @@ DerivedArgList *Darwin::TranslateArgs(const DerivedArgList &Args,
       A = XarchArg;
 
       DAL->AddSynthesizedArg(A);
+
+      // Linker input arguments require custom handling. The problem is that we
+      // have already constructed the phase actions, so we can not treat them as
+      // "input arguments".
+      if (A->getOption().isLinkerInput()) {
+        // Convert the argument into individual Zlinker_input_args.
+        for (unsigned i = 0, e = A->getNumValues(); i != e; ++i) {
+          DAL->AddSeparateArg(OriginalArg,
+                              Opts.getOption(options::OPT_Zlinker_input),
+                              A->getValue(Args, i));
+          
+        }
+        continue;
+      }
     }
 
     // Sob. These is strictly gcc compatible for the time being. Apple
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 5233e2bcf6..8328982ae9 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -91,6 +91,10 @@ static void AddLinkerInputs(const ToolChain &TC,
                             ArgStringList &CmdArgs) {
   const Driver &D = TC.getDriver();
 
+  // Add extra linker input arguments which are not treated as inputs
+  // (constructed via -Xarch_).
+  Args.AddAllArgValues(CmdArgs, options::OPT_Zlinker_input);
+
   for (InputInfoList::const_iterator
          it = Inputs.begin(), ie = Inputs.end(); it != ie; ++it) {
     const InputInfo &II = *it;