4 files changed, 7 insertions, 1 deletions
diff --git a/libc/string/x86_64/bzero.S b/libc/string/x86_64/bzero.S
index 4d179ec4e..231d7cb41 100644
--- a/libc/string/x86_64/bzero.S
+++ b/libc/string/x86_64/bzero.S
@@ -1,5 +1,6 @@
 #include <features.h>
 #ifdef __UCLIBC_SUSV3_LEGACY__
 # define memset bzero
+# define __memset_chk __bzero_chk
 # include "memset.S"
 #endif
diff --git a/libc/string/x86_64/memcpy.S b/libc/string/x86_64/memcpy.S
index 011291447..6d941e0f2 100644
--- a/libc/string/x86_64/memcpy.S
+++ b/libc/string/x86_64/memcpy.S
@@ -29,7 +29,9 @@
 #if defined __PIC__ && !defined NOT_IN_libc
 ENTRY (__memcpy_chk)
 	cmpq	%rdx, %rcx
+#if defined __UCLIBC_HAS_SSP__
 	jb	HIDDEN_JUMPTARGET (__chk_fail)
+#endif
 END (__memcpy_chk)
 #endif
 ENTRY (BP_SYM (memcpy))
diff --git a/libc/string/x86_64/mempcpy.S b/libc/string/x86_64/mempcpy.S
index 3816d9f72..b0607aa57 100644
--- a/libc/string/x86_64/mempcpy.S
+++ b/libc/string/x86_64/mempcpy.S
@@ -1,3 +1,4 @@
 #define memcpy mempcpy
+#define __memcpy_chk __mempcpy_chk
 #include "memcpy.S"
 libc_hidden_def(mempcpy)
diff --git a/libc/string/x86_64/memset.S b/libc/string/x86_64/memset.S
index 562574a4d..df265f394 100644
--- a/libc/string/x86_64/memset.S
+++ b/libc/string/x86_64/memset.S
@@ -29,10 +29,12 @@
 #define LARGE $120000
 
         .text
-#if !BZERO_P && defined __PIC__ && !defined NOT_IN_libc
+#if defined __PIC__ && !defined NOT_IN_libc
 ENTRY (__memset_chk)
 	cmpq	%rdx, %rcx
+#if defined __UCLIBC_HAS_SSP__
 	jb	HIDDEN_JUMPTARGET (__chk_fail)
+#endif
 END (__memset_chk)
 #endif
 ENTRY (memset)