Index: pregenerated/x86_64-mont5-elf.S
--- pregenerated/x86_64-mont5-elf.S.orig
+++ pregenerated/x86_64-mont5-elf.S
@@ -1,6 +1,12 @@
 # This file is generated from a similarly-named Perl script in the BoringSSL
 # source tree. Do not edit by hand.
 
+#if defined(__CET__)
+#include <cet.h>
+#else
+#define _CET_ENDBR
+#endif
+
 #if defined(__has_feature)
 #if __has_feature(memory_sanitizer) && !defined(OPENSSL_NO_ASM)
 #define OPENSSL_NO_ASM
@@ -19,6 +25,7 @@
 .align	64
 GFp_bn_mul_mont_gather5:
 .cfi_startproc	
+	_CET_ENDBR
 	movl	%r9d,%r9d
 	movq	%rsp,%rax
 .cfi_def_cfa_register	%rax
@@ -1093,6 +1100,7 @@ mul4x_internal:
 .align	32
 GFp_bn_power5:
 .cfi_startproc	
+	_CET_ENDBR
 	movq	%rsp,%rax
 .cfi_def_cfa_register	%rax
 	leaq	GFp_ia32cap_P(%rip),%r11
@@ -1232,6 +1240,7 @@ GFp_bn_power5:
 GFp_bn_sqr8x_internal:
 __bn_sqr8x_internal:
 .cfi_startproc	
+	_CET_ENDBR
 
 
 
@@ -2070,6 +2079,7 @@ __bn_post4x_internal:
 .align	32
 GFp_bn_from_montgomery:
 .cfi_startproc	
+	_CET_ENDBR
 	testl	$7,%r9d
 	jz	bn_from_mont8x
 	xorl	%eax,%eax
@@ -2922,6 +2932,7 @@ bn_powerx5:
 GFp_bn_sqrx8x_internal:
 __bn_sqrx8x_internal:
 .cfi_startproc	
+	_CET_ENDBR
 
 
 
@@ -3594,6 +3605,7 @@ __bn_postx4x_internal:
 .align	16
 GFp_bn_scatter5:
 .cfi_startproc	
+	_CET_ENDBR
 	cmpl	$0,%esi
 	jz	.Lscatter_epilogue
 	leaq	(%rdx,%rcx,8),%rdx
@@ -3615,6 +3627,7 @@ GFp_bn_scatter5:
 .align	32
 GFp_bn_gather5:
 .cfi_startproc	
+	_CET_ENDBR
 .LSEH_begin_GFp_bn_gather5:
 
 .byte	0x4c,0x8d,0x14,0x24
@@ -3777,10 +3790,12 @@ GFp_bn_gather5:
 .LSEH_end_GFp_bn_gather5:
 .cfi_endproc	
 .size	GFp_bn_gather5,.-GFp_bn_gather5
+.section .rodata
 .align	64
 .Linc:
 .long	0,0, 1,1
 .long	2,2, 2,2
 .byte	77,111,110,116,103,111,109,101,114,121,32,77,117,108,116,105,112,108,105,99,97,116,105,111,110,32,119,105,116,104,32,115,99,97,116,116,101,114,47,103,97,116,104,101,114,32,102,111,114,32,120,56,54,95,54,52,44,32,67,82,89,80,84,79,71,65,77,83,32,98,121,32,60,97,112,112,114,111,64,111,112,101,110,115,115,108,46,111,114,103,62,0
+.text
 #endif
 .section	.note.GNU-stack,"",@progbits