[hwasan] Replace _Unwind_Word with uintptr_t
GCC introduced `__attribute__((mode(unwind_word)))` to work around
Cell Broadband Engine SPU (which was removed from GCC in 2019-09),
which is irrelevant to hwasan.
_Unwind_GetGR/_Unwind_GetCFA from llvm-project/libunwind don't use unwind_word.
Using _Unwind_Word can lead to build failures if libunwind's unwind.h is
preferred over unwind.h in the Clang resource directory (e.g. built with GCC).
GitOrigin-RevId: 815b9f53d85e32e13bf318be24e7ece0617ff85d
diff --git a/lib/hwasan/hwasan_exceptions.cpp b/lib/hwasan/hwasan_exceptions.cpp
index 169e787..6ed1da3 100644
--- a/lib/hwasan/hwasan_exceptions.cpp
+++ b/lib/hwasan/hwasan_exceptions.cpp
@@ -29,8 +29,8 @@
// is statically linked and the sanitizer runtime and the program are linked
// against different unwinders. The _Unwind_Context data structure is opaque so
// it may be incompatible between unwinders.
-typedef _Unwind_Word GetGRFn(_Unwind_Context* context, int index);
-typedef _Unwind_Word GetCFAFn(_Unwind_Context* context);
+typedef uintptr_t GetGRFn(_Unwind_Context* context, int index);
+typedef uintptr_t GetCFAFn(_Unwind_Context* context);
extern "C" SANITIZER_INTERFACE_ATTRIBUTE _Unwind_Reason_Code
__hwasan_personality_wrapper(int version, _Unwind_Action actions,
