>From 43878dff8a56177731f0d336c1a8ab22bcd2601b Mon Sep 17 00:00:00 2001
From: Mikko Lehtonen <scoopr@iki.fi>
Date: Fri, 4 Mar 2011 19:11:13 +0200
Subject: [PATCH] Handle thumb arch the same way as arm arch in clang driver.

---
 lib/Driver/ToolChains.cpp |    7 ++++---
 lib/Driver/Tools.cpp      |   10 +++++++---
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
index bb83492..7cae9ba 100644
--- a/lib/Driver/ToolChains.cpp
+++ b/lib/Driver/ToolChains.cpp
@@ -114,7 +114,8 @@ llvm::StringRef Darwin::getDarwinArchName(const ArgList &Args) const {
   switch (getTriple().getArch()) {
   default:
     return getArchName();
-
+  
+  case llvm::Triple::thumb:
   case llvm::Triple::arm: {
     if (const Arg *A = Args.getLastArg(options::OPT_march_EQ))
       if (const char *Arch = GetArmArchForMArch(A->getValue(Args)))
@@ -1401,7 +1402,7 @@ Linux::Linux(const HostInfo &Host, const llvm::Triple &Triple)
     Lib64 = "lib64";
 
   std::string GccTriple = "";
-  if (Arch == llvm::Triple::arm) {
+  if (Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb) {
     if (!llvm::sys::fs::exists("/usr/lib/gcc/arm-linux-gnueabi", Exists) &&
         Exists)
       GccTriple = "arm-linux-gnueabi";
@@ -1486,7 +1487,7 @@ Linux::Linux(const HostInfo &Host, const llvm::Triple &Triple)
     ExtraOpts.push_back("relro");
   }
 
-  if (Arch == llvm::Triple::arm)
+  if (Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb)
     ExtraOpts.push_back("-X");
 
   if (IsFedora(Distro) || Distro == UbuntuMaverick)
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index f9e7ba1..2f6a4cc 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -3599,13 +3599,15 @@ void linuxtools::Link::ConstructJob(Compilation &C, const JobAction &JA,
   CmdArgs.push_back("-m");
   if (ToolChain.getArch() == llvm::Triple::x86)
     CmdArgs.push_back("elf_i386");
-  else if (ToolChain.getArch() == llvm::Triple::arm)
+  else if (ToolChain.getArch() == llvm::Triple::arm 
+           ||  ToolChain.getArch() == llvm::Triple::thumb)
     CmdArgs.push_back("armelf_linux_eabi");
   else
     CmdArgs.push_back("elf_x86_64");
 
   if (Args.hasArg(options::OPT_static)) {
-    if (ToolChain.getArch() == llvm::Triple::arm)
+    if (ToolChain.getArch() == llvm::Triple::arm
+        || ToolChain.getArch() == llvm::Triple::thumb)
       CmdArgs.push_back("-Bstatic");
     else
       CmdArgs.push_back("-static");
@@ -3614,12 +3616,14 @@ void linuxtools::Link::ConstructJob(Compilation &C, const JobAction &JA,
   }
 
   if (ToolChain.getArch() == llvm::Triple::arm ||
+      ToolChain.getArch() == llvm::Triple::thumb ||
       (!Args.hasArg(options::OPT_static) &&
        !Args.hasArg(options::OPT_shared))) {
     CmdArgs.push_back("-dynamic-linker");
     if (ToolChain.getArch() == llvm::Triple::x86)
       CmdArgs.push_back("/lib/ld-linux.so.2");
-    else if (ToolChain.getArch() == llvm::Triple::arm)
+    else if (ToolChain.getArch() == llvm::Triple::arm ||
+             ToolChain.getArch() == llvm::Triple::thumb)
       CmdArgs.push_back("/lib/ld-linux.so.3");
     else
       CmdArgs.push_back("/lib64/ld-linux-x86-64.so.2");
-- 
1.7.1

