1 /* 2 Copyright (c) 2014, Intel Corporation 3 All rights reserved. 4 5 Redistribution and use in source and binary forms, with or without 6 modification, 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 19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 20 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 21 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 22 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 23 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 24 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 26 ANY 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 28 SOFTWARE, 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; \ 52 name: \ 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 65 ENTRY (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 77 L(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
