Implement -static-libgcc on linux and refactor the code responsible for adding

libgcc to the link line into a helper function.

llvm-svn: 142269

1 files changed, 27 insertions, 31 deletions

diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 4b4ff25e281..a71015307dd 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -4233,6 +4233,30 @@ void linuxtools::Assemble::ConstructJob(Compilation &C, const JobAction &JA,
   C.addCommand(new Command(JA, *this, Exec, CmdArgs));
 }
 
+static void AddLibgcc(const Driver &D, ArgStringList &CmdArgs,
+                      const ArgList &Args) {
+  bool StaticLibgcc = Args.hasArg(options::OPT_static) ||
+    Args.hasArg(options::OPT_static_libgcc);
+  if (!D.CCCIsCXX)
+    CmdArgs.push_back("-lgcc");
+
+  if (StaticLibgcc) {
+    if (D.CCCIsCXX)
+      CmdArgs.push_back("-lgcc");
+  } else {
+    if (!D.CCCIsCXX)
+      CmdArgs.push_back("--as-needed");
+    CmdArgs.push_back("-lgcc_s");
+    if (!D.CCCIsCXX)
+      CmdArgs.push_back("--no-as-needed");
+  }
+
+  if (StaticLibgcc)
+    CmdArgs.push_back("-lgcc_eh");
+  else if (!Args.hasArg(options::OPT_shared) && D.CCCIsCXX)
+    CmdArgs.push_back("-lgcc");
+}
+
 void linuxtools::Link::ConstructJob(Compilation &C, const JobAction &JA,
                                     const InputInfo &Output,
                                     const InputInfoList &Inputs,
@@ -4359,24 +4383,7 @@ void linuxtools::Link::ConstructJob(Compilation &C, const JobAction &JA,
     if (Args.hasArg(options::OPT_static))
       CmdArgs.push_back("--start-group");
 
-    if (!D.CCCIsCXX)
-      CmdArgs.push_back("-lgcc");
-
-    if (Args.hasArg(options::OPT_static)) {
-      if (D.CCCIsCXX)
-        CmdArgs.push_back("-lgcc");
-    } else {
-      if (!D.CCCIsCXX)
-        CmdArgs.push_back("--as-needed");
-      CmdArgs.push_back("-lgcc_s");
-      if (!D.CCCIsCXX)
-        CmdArgs.push_back("--no-as-needed");
-    }
-
-    if (Args.hasArg(options::OPT_static))
-      CmdArgs.push_back("-lgcc_eh");
-    else if (!Args.hasArg(options::OPT_shared) && D.CCCIsCXX)
-      CmdArgs.push_back("-lgcc");
+    AddLibgcc(D, CmdArgs, Args);
 
     if (Args.hasArg(options::OPT_pthread) ||
         Args.hasArg(options::OPT_pthreads))
@@ -4386,19 +4393,8 @@ void linuxtools::Link::ConstructJob(Compilation &C, const JobAction &JA,
 
     if (Args.hasArg(options::OPT_static))
       CmdArgs.push_back("--end-group");
-    else {
-      if (!D.CCCIsCXX)
-        CmdArgs.push_back("-lgcc");
-
-      if (!D.CCCIsCXX)
-        CmdArgs.push_back("--as-needed");
-      CmdArgs.push_back("-lgcc_s");
-      if (!D.CCCIsCXX)
-        CmdArgs.push_back("--no-as-needed");
-
-      if (!Args.hasArg(options::OPT_shared) && D.CCCIsCXX)
-        CmdArgs.push_back("-lgcc");
-    }
+    else
+      AddLibgcc(D, CmdArgs, Args);
 
 
     if (!Args.hasArg(options::OPT_nostartfiles)) {