[PATCH] XFAIL ptrace test on arm

[Alexey Samsonov]

LGTM

================
Comment at: CMakeLists.txt:144
@@ +143,3 @@
+string(REPLACE "-" ";" TARGET_TRIPLE_LIST ${COMPILER_RT_TEST_TARGET_TRIPLE})
+list(GET TARGET_TRIPLE_LIST 0 TARGET_ARCH)
+
----------------
COMPILER_RT_TEST_TARGET_ARCH here as well.

http://reviews.llvm.org/D3855