[msan] Teach sanitizers about the PPC64 ptrace syscall

Summary:
This fixes test/msan/Linux/syscalls.cc, and should also fix the ppc64
sanitizer buildbots which are currently failing in
"make check-sanitizer".

Reviewers: samsonov, wschmidt, eugenis

Reviewed By: eugenis

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10734

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@240692 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 2 deletions

diff --git a/lib/sanitizer_common/sanitizer_common_syscalls.inc b/lib/sanitizer_common/sanitizer_common_syscalls.inc
index f2c054e2e..5d4840f96 100644
--- a/lib/sanitizer_common/sanitizer_common_syscalls.inc
+++ b/lib/sanitizer_common/sanitizer_common_syscalls.inc
@@ -2300,7 +2300,8 @@ POST_SYSCALL(ni_syscall)(long res) {}
 
 PRE_SYSCALL(ptrace)(long request, long pid, long addr, long data) {
 #if !SANITIZER_ANDROID && \
-    (defined(__i386) || defined(__x86_64) || defined(__mips64))
+    (defined(__i386) || defined(__x86_64) || defined(__mips64) || \
+     defined(__powerpc64__))
   if (data) {
     if (request == ptrace_setregs) {
       PRE_READ((void *)data, struct_user_regs_struct_sz);
@@ -2320,7 +2321,8 @@ PRE_SYSCALL(ptrace)(long request, long pid, long addr, long data) {
 
 POST_SYSCALL(ptrace)(long res, long request, long pid, long addr, long data) {
 #if !SANITIZER_ANDROID && \
-    (defined(__i386) || defined(__x86_64) || defined(__mips64))
+    (defined(__i386) || defined(__x86_64) || defined(__mips64) || \
+     defined(__powerpc64__))
   if (res >= 0 && data) {
     // Note that this is different from the interceptor in
     // sanitizer_common_interceptors.inc.