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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/contrib/bionic-x86_64-string/sse2-strcat-slm.S
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/*

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Copyright (c) 2014, Intel Corporation

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All rights reserved.

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Redistribution and use in source and binary forms, with or without

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modification, are permitted provided that the following conditions are met:

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    * Redistributions of source code must retain the above copyright notice,

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    * this list of conditions and the following disclaimer.

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    * Redistributions in binary form must reproduce the above copyright notice,

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    * this list of conditions and the following disclaimer in the documentation

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    * and/or other materials provided with the distribution.

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    * Neither the name of Intel Corporation nor the names of its contributors

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    * may be used to endorse or promote products derived from this software

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    * without specific prior written permission.

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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND

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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR

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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON

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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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*/

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#ifndef STRCAT

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# define STRCAT		strcat

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#endif

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#ifndef L

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# define L(label)		.L##label

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#endif

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#ifndef cfi_startproc

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# define cfi_startproc		 .cfi_startproc

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#endif

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#ifndef cfi_endproc

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# define cfi_endproc		.cfi_endproc

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#endif

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#ifndef ENTRY

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# define ENTRY(name)		\

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	.type name,  @function;		\

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	.globl name;		\

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	.p2align 4;		\

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name:		\

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	cfi_startproc

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#endif

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#ifndef END

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# define END(name)		\

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	cfi_endproc;		\

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	.size name, .-name

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#endif

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#define USE_AS_STRCAT

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.text

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ENTRY (STRCAT)

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	mov	%rdi, %r9

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#ifdef USE_AS_STRNCAT

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	mov	%rdx, %r8

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#endif

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#define RETURN jmp L(Strcpy)

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#include "sse2-strlen-slm.S"

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#undef RETURN

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#define RETURN ret

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L(Strcpy):

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	lea	(%r9, %rax), %rdi

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	mov	%rsi, %rcx

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	mov	%r9, %rax	/* save result */

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#ifdef USE_AS_STRNCAT

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	test	%r8, %r8

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	jz	L(ExitZero)

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# define USE_AS_STRNCPY

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#endif

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#include "sse2-strcpy-slm.S"

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