Index: cfe/trunk/lib/Driver/ToolChains/Gnu.cpp
===================================================================
--- cfe/trunk/lib/Driver/ToolChains/Gnu.cpp
+++ cfe/trunk/lib/Driver/ToolChains/Gnu.cpp
@@ -237,7 +237,7 @@
   case llvm::Triple::aarch64:
     return "aarch64linux";
   case llvm::Triple::aarch64_be:
-    return "aarch64_be_linux";
+    return "aarch64linuxb";
   case llvm::Triple::arm:
   case llvm::Triple::thumb:
     return "armelf_linux_eabi";
Index: cfe/trunk/test/Driver/linux-ld.c
===================================================================
--- cfe/trunk/test/Driver/linux-ld.c
+++ cfe/trunk/test/Driver/linux-ld.c
@@ -1754,6 +1754,14 @@
 // CHECK-ARMV7EB: "--be8"
 // CHECK-ARMV7EB: "-m" "armelfb_linux_eabi"
 
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN:     --target=aarch64_be-unknown-linux \
+// RUN:     --gcc-toolchain="" \
+// RUN:     --sysroot=%S/Inputs/basic_linux_tree \
+// RUN:   | FileCheck --check-prefix=CHECK-AARCH64BE %s
+// CHECK-AARCH64BE: "{{.*}}ld{{(.exe)?}}" "--sysroot=[[SYSROOT:[^"]+]]"
+// CHECK-AARCH64BE: "-m" "aarch64linuxb"
+
 // Check dynamic-linker for musl-libc
 // RUN: %clang %s -### -o %t.o 2>&1 \
 // RUN:     --target=i386-pc-linux-musl \