[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/build/uClibc/libc/string/arm/memcmp.S b/ap/build/uClibc/libc/string/arm/memcmp.S
new file mode 100644
index 0000000..65409f4
--- /dev/null
+++ b/ap/build/uClibc/libc/string/arm/memcmp.S
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2002 ARM Ltd
+ * 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. The name of the company may not be used to endorse or promote
+ * products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ARM LTD ``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 ARM LTD 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.
+ *
+ * Adapted for uClibc from NetBSD memcmp.S, version 1.2 2003/04/05
+ * by Erik Andersen <andersen@codepoet.org>
+ */
+
+#include <features.h>
+#include <bits/arm_asm.h>
+
+.text
+.global memcmp
+.type memcmp,%function
+.align 4
+
+#if defined(THUMB1_ONLY)
+.thumb_func
+memcmp:
+ cmp r2, #0
+ bne 1f
+ mov r0, #0
+ bx lr
+1:
+ push {r4}
+ add r4, r0, r2
+2:
+ ldrb r2, [r0]
+ add r0, r0, #1
+ ldrb r3, [r1]
+ add r1, r1, #1
+ cmp r4, r0
+ beq 3f
+ cmp r2, r3
+ beq 2b
+3:
+ sub r0, r2, r3
+ pop {r4}
+ bx lr
+#else
+memcmp:
+ /* if ((len - 1) < 0) return 0 */
+ subs r2, r2, #1
+ IT(tt, mi)
+ movmi r0, #0
+#if defined(__USE_BX__)
+ bxmi lr
+#else
+ movmi pc, lr
+#endif
+ /* ip == last src address to compare */
+ add ip, r0, r2
+1:
+ ldrb r2, [r0], #1
+ ldrb r3, [r1], #1
+ cmp ip, r0
+ IT(t, cs)
+ cmpcs r2, r3
+ beq 1b
+ sub r0, r2, r3
+#if defined(__USE_BX__)
+ bx lr
+#else
+ mov pc, lr
+#endif
+#endif
+
+.size memcmp,.-memcmp
+
+libc_hidden_def(memcmp)
+#ifdef __UCLIBC_SUSV3_LEGACY__
+strong_alias(memcmp,bcmp)
+#endif