99 lines
3.0 KiB
ArmAsm
99 lines
3.0 KiB
ArmAsm
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/*********************************************************************************
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* libs/libc/machine/x86_64/gnu/arch_strcat.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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*
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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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*
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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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*
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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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*
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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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*
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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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*********************************************************************************/
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/*********************************************************************************
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* Pre-processor Definitions
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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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/*********************************************************************************
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* Public Functions
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*********************************************************************************/
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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 "arch_strlen.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 "arch_strcpy.S"
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