[sanitizer] Fix PPC bot
@@ -1709,11 +1709,11 @@ static bool Aarch64GetESR(ucontext_t *ucontext, u64 *esr) {
#if SANITIZER_OPENBSD
using Context = sigcontext;
#else
-using Context = ucontext;
-#endif // !SANITIZER_OPENBSD
+using Context = ucontext_t;
+#endif
SignalContext::WriteFlag SignalContext::GetWriteFlag() const {
- ucontext_t *ucontext = (ucontext_t *)context;
+ Context *ucontext = (Context *)context;
#if defined(__x86_64__) || defined(__i386__)
static const uptr PF_WRITE = 1U << 1;
#if SANITIZER_FREEBSD
