aarch64: define BTI_C and BTI_J macros as nop unless HAVE_AARCH64_BTI

NaohiroTamura · May 7, 2021 · 0804fe9 · 0804fe9
1 parent 2cb8864
commit 0804fe9
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/sysdeps/aarch64/sysdep.h b/sysdeps/aarch64/sysdep.h
@@ -62,8 +62,13 @@ strip_pac (void *p)
 #define ASM_SIZE_DIRECTIVE(name) .size name,.-name
 
 /* Branch Target Identitication support.  */
-#define BTI_C		hint	34
-#define BTI_J		hint	36
+#if HAVE_AARCH64_BTI
+# define BTI_C		hint	34
+# define BTI_J		hint	36
+#else
+# define BTI_C		nop
+# define BTI_J		nop
+#endif
 
 /* Return address signing support (pac-ret).  */
 #define PACIASP		hint	25