[PATCH] [msan] Teach sanitizers about the PPC64 ptrace syscall

[Evgeniy Stepanov]

LGTM


================
Comment at: lib/sanitizer_common/sanitizer_platform_interceptors.h:135
@@ -135,1 +134,3 @@
+  (defined(__i386) || defined(__x86_64) || defined(__mips64) || \
+    defined(__powerpc64__))
 #define SANITIZER_INTERCEPT_SETLOCALE SI_NOT_WINDOWS
----------------
Does it pass cpplint with this change? I don't see why, please check.Cpplint is run in check-*san.

http://reviews.llvm.org/D10734

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