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-rw-r--r--sysdeps/x86_64/memcpy.S6
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/x86_64/memcpy.S b/sysdeps/x86_64/memcpy.S
index de47688241..5f06198b5d 100644
--- a/sysdeps/x86_64/memcpy.S
+++ b/sysdeps/x86_64/memcpy.S
@@ -29,6 +29,12 @@
#define MEMPCPY_P (defined memcpy)
.text
+#if defined PIC && !defined NOT_IN_libc
+ENTRY (__memcpy_chk)
+ cmpq %rdx, %rcx
+ jb HIDDEN_JUMPTARGET (__chk_fail)
+END (__memcpy_chk)
+#endif
ENTRY (BP_SYM (memcpy))
/* Cutoff for the big loop is a size of 32 bytes since otherwise
the loop will never be entered. */