--- /tmp/glibc-master-binary.txt	2017-09-10 20:36:17.813220835 -0700
+++ /tmp/glibc-new-fortify-binary.txt	2017-09-10 20:35:57.859886341 -0700
@@ -6,10 +6,17 @@
 
 0000000000000000 <foo>:
    0:	48 83 ec 18          	sub    $0x18,%rsp
-   4:	b9 01 00 00 00       	mov    $0x1,%ecx
-   9:	ba 02 00 00 00       	mov    $0x2,%edx
-   e:	48 8d 74 24 08       	lea    0x8(%rsp),%rsi
-  13:	48 8d 7e 04          	lea    0x4(%rsi),%rdi
-  17:	e8 00 00 00 00       	callq  1c <foo+0x1c>
-  1c:	48 83 c4 18          	add    $0x18,%rsp
-  20:	c3                   	retq   
+   4:	c6 44 24 07 00       	movb   $0x0,0x7(%rsp)
+   9:	0f b6 44 24 07       	movzbl 0x7(%rsp),%eax
+   e:	84 c0                	test   %al,%al
+  10:	75 1e                	jne    30 <foo+0x30>
+  12:	48 8d 74 24 08       	lea    0x8(%rsp),%rsi
+  17:	b9 01 00 00 00       	mov    $0x1,%ecx
+  1c:	ba 02 00 00 00       	mov    $0x2,%edx
+  21:	48 8d 7e 04          	lea    0x4(%rsi),%rdi
+  25:	e8 00 00 00 00       	callq  2a <foo+0x2a>
+  2a:	48 83 c4 18          	add    $0x18,%rsp
+  2e:	c3                   	retq   
+  2f:	90                   	nop
+  30:	e8 00 00 00 00       	callq  35 <foo+0x35>
+  35:	eb db                	jmp    12 <foo+0x12>