Index: src/lib/amd64_blend_cmod.S
--- src/lib/amd64_blend_cmod.S.orig
+++ src/lib/amd64_blend_cmod.S
@@ -114,6 +114,7 @@ FN_(imlib_amd64_reshade_copy_rgb_to_rgba_cmod)
 
 
 #define ENTER		\
+	endbr64		; \
 	pushq %rbp	; \
 	movq %rsp, %rbp	; \
 	pushq %rbx	; \
