1/*
2Copyright (c) 2014, Intel Corporation
3All rights reserved.
4
5Redistribution and use in source and binary forms, with or without
6modification, are permitted provided that the following conditions are met:
7
8    * Redistributions of source code must retain the above copyright notice,
9    * this list of conditions and the following disclaimer.
10
11    * Redistributions in binary form must reproduce the above copyright notice,
12    * this list of conditions and the following disclaimer in the documentation
13    * and/or other materials provided with the distribution.
14
15    * Neither the name of Intel Corporation nor the names of its contributors
16    * may be used to endorse or promote products derived from this software
17    * without specific prior written permission.
18
19THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
20ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
23ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
26ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29*/
30
31#ifndef STRCAT
32# define STRCAT		strcat
33#endif
34
35#ifndef L
36# define L(label)		.L##label
37#endif
38
39#ifndef cfi_startproc
40# define cfi_startproc		 .cfi_startproc
41#endif
42
43#ifndef cfi_endproc
44# define cfi_endproc		.cfi_endproc
45#endif
46
47#ifndef ENTRY
48# define ENTRY(name)		\
49	.type name,  @function;		\
50	.globl name;		\
51	.p2align 4;		\
52name:		\
53	cfi_startproc
54#endif
55
56#ifndef END
57# define END(name)		\
58	cfi_endproc;		\
59	.size name, .-name
60#endif
61
62#define USE_AS_STRCAT
63
64.text
65ENTRY (STRCAT)
66	mov	%rdi, %r9
67#ifdef USE_AS_STRNCAT
68	mov	%rdx, %r8
69#endif
70
71#define RETURN jmp L(Strcpy)
72#include "sse2-strlen-slm.S"
73
74#undef RETURN
75#define RETURN ret
76
77L(Strcpy):
78	lea	(%r9, %rax), %rdi
79	mov	%rsi, %rcx
80	mov	%r9, %rax	/* save result */
81
82#ifdef USE_AS_STRNCAT
83	test	%r8, %r8
84	jz	L(ExitZero)
85# define USE_AS_STRNCPY
86#endif
87#include "sse2-strcpy-slm.S"
88