Index: sanitizer_linux.cc
===================================================================
--- sanitizer_linux.cc	(revision 345081)
+++ sanitizer_linux.cc	(working copy)
@@ -1393,7 +1393,7 @@
                        : "x30", "memory");
   return res;
 }
-#elif defined(__powerpc64__)
+#elif defined(__powerpc64__) && SANITIZER_LINUX
 uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
                    int *parent_tidptr, void *newtls, int *child_tidptr) {
   long long res;
@@ -1933,12 +1933,19 @@
   *sp = ucontext->uc_mcontext.gregs[REG_ESP];
 # endif
 #elif defined(__powerpc__) || defined(__powerpc64__)
+# if SANITIZER_FREEBSD
   ucontext_t *ucontext = (ucontext_t*)context;
+  *pc = ucontext->uc_mcontext.mc_srr0;
+  *sp = ucontext->uc_mcontext.mc_gpr[1];
+  *bp = ucontext->uc_mcontext.mc_gpr[31];
+# else
+  ucontext_t *ucontext = (ucontext_t*)context;
   *pc = ucontext->uc_mcontext.regs->nip;
   *sp = ucontext->uc_mcontext.regs->gpr[PT_R1];
   // The powerpc{,64}-linux ABIs do not specify r31 as the frame
   // pointer, but GCC always uses r31 when we need a frame pointer.
   *bp = ucontext->uc_mcontext.regs->gpr[PT_R31];
+# endif
 #elif defined(__sparc__)
   ucontext_t *ucontext = (ucontext_t*)context;
   uptr *stk_ptr;