Index: libunwind/src/assembly.h
===================================================================
--- libunwind/src/assembly.h
+++ libunwind/src/assembly.h
@@ -43,6 +43,23 @@
   .quad 0 SEPARATOR \
   .text SEPARATOR \
 .Lfunc_begin0:
+#elif (defined(__arm64__) || defined(__aarch64__)) && defined(__ARM_FEATURE_BTI_DEFAULT)
+#define PPC64_OPD1  \
+  .pushsection ".note.gnu.property", "a" SEPARATOR \
+  .balign 8 SEPARATOR \
+  .long 4 SEPARATOR \
+  .long 0x10 SEPARATOR \
+  .long 0x5 SEPARATOR \
+  .asciz "GNU" SEPARATOR \
+  /* GNU_PROPERTY_AARCH64_FEATURE_1_AND */ \
+  .long 0xc0000000 SEPARATOR \
+  .long 4 SEPARATOR \
+  /* GNU_PROPERTY_AARCH64_FEATURE_1_BTI */\
+  /* GNU_PROPERTY_AARCH64_FEATURE_1_PAC */\
+  .long 3 SEPARATOR \
+  .long 0 SEPARATOR \
+  .popsection SEPARATOR
+#define PPC64_OPD2  hint #34 /* bti c */
 #else
 #define PPC64_OPD1
 #define PPC64_OPD2