X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvppinfra%2Fstring.h;h=38d3baba9dae20d5765d1539d6dc9069653f207c;hb=4141ded3ec876313a5c7f74a93dec3e18940180a;hp=0b187672816fbec5ddf3409c54d3ae5637d63e51;hpb=137d4ca67bb525f2e2214cc42c2cb3866fc16dc4;p=vpp.git

diff --git a/src/vppinfra/string.h b/src/vppinfra/string.h
index 0b187672816..38d3baba9da 100644
--- a/src/vppinfra/string.h
+++ b/src/vppinfra/string.h
@@ -47,7 +47,9 @@
 #include <vppinfra/clib.h>	/* for CLIB_LINUX_KERNEL */
 #include <vppinfra/vector.h>
 #include <vppinfra/error_bootstrap.h>
+#ifdef __SSE4_2__
 #include <vppinfra/memcpy_x86_64.h>
+#endif
 
 #ifdef CLIB_LINUX_KERNEL
 #include <linux/string.h>
@@ -77,7 +79,7 @@ clib_memcpy_fast (void *restrict dst, const void *restrict src, size_t n)
 	  "behaviour");
 #if defined(__COVERITY__)
   return memcpy (dst, src, n);
-#elif defined(__x86_64__)
+#elif defined(__SSE4_2__)
   clib_memcpy_x86_64 (dst, src, n);
   return dst;
 #else
@@ -85,6 +87,25 @@ clib_memcpy_fast (void *restrict dst, const void *restrict src, size_t n)
 #endif
 }
 
+static_always_inline void *
+clib_memmove (void *dst, const void *src, size_t n)
+{
+  u8 *d = (u8 *) dst;
+  u8 *s = (u8 *) src;
+
+  if (s == d)
+    return d;
+
+  if (d > s)
+    for (uword i = n - 1; (i + 1) > 0; i--)
+      d[i] = s[i];
+  else
+    for (uword i = 0; i < n; i++)
+      d[i] = s[i];
+
+  return d;
+}
+
 #include <vppinfra/memcpy.h>
 
 /* c-11 string manipulation variants */