bionic/x86: Optimization for string routines
Optimized strcpy, strcat,
strncpy, strncat, strlcpy, strlcat,
memchr, memrchr, strchr, strrchr, index,
strnlen, strlen, wcslen, wmemcmp, wcscmp,
wcschr, wcsrchr, wcscpy, wcscat
Change-Id: I82b29132edf9a2e144e0bb3ee4ff5217df8d2a6d
Signed-off-by: Liubov Dmitrieva <liubov.dmitrieva@intel.com>
diff --git a/libc/string/__strrchr_chk.c b/libc/string/__strrchr_chk.c
new file mode 100644
index 0000000..c1e5d66
--- /dev/null
+++ b/libc/string/__strrchr_chk.c
@@ -0,0 +1,48 @@
+/* $OpenBSD: rindex.c,v 1.6 2005/08/08 08:05:37 espie Exp $ */
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+#include "libc_logging.h"
+
+char *
+__strrchr_chk(const char *p, int ch, size_t s_len)
+{
+ char *save;
+
+ for (save = NULL;; ++p, s_len--) {
+ if (s_len == 0)
+ __fortify_chk_fail("strrchr read beyond buffer", 0);
+ if (*p == (char) ch)
+ save = (char *)p;
+ if (!*p)
+ return(save);
+ }
+ /* NOTREACHED */
+}
diff --git a/libc/string/strrchr.c b/libc/string/strrchr.c
index e709d49..fe2306a 100644
--- a/libc/string/strrchr.c
+++ b/libc/string/strrchr.c
@@ -29,23 +29,6 @@
*/
#include <string.h>
-#include "libc_logging.h"
-
-char *
-__strrchr_chk(const char *p, int ch, size_t s_len)
-{
- char *save;
-
- for (save = NULL;; ++p, s_len--) {
- if (s_len == 0)
- __fortify_chk_fail("strrchr read beyond buffer", 0);
- if (*p == (char) ch)
- save = (char *)p;
- if (!*p)
- return(save);
- }
- /* NOTREACHED */
-}
char *
strrchr(const char *p, int ch)