1 /* 2 Copyright (c) 2011 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 L 32 # define L(label) .L##label 33 #endif 34 35 #ifndef cfi_startproc 36 # define cfi_startproc .cfi_startproc 37 #endif 38 39 #ifndef cfi_endproc 40 # define cfi_endproc .cfi_endproc 41 #endif 42 43 #ifndef cfi_rel_offset 44 # define cfi_rel_offset(reg, off) .cfi_rel_offset reg, off 45 #endif 46 47 #ifndef cfi_restore 48 # define cfi_restore(reg) .cfi_restore reg 49 #endif 50 51 #ifndef cfi_adjust_cfa_offset 52 # define cfi_adjust_cfa_offset(off) .cfi_adjust_cfa_offset off 53 #endif 54 55 #ifndef ENTRY 56 # define ENTRY(name) \ 57 .type name, @function; \ 58 .globl name; \ 59 .p2align 4; \ 60 name: \ 61 cfi_startproc 62 #endif 63 64 #ifndef END 65 # define END(name) \ 66 cfi_endproc; \ 67 .size name, .-name 68 #endif 69 70 #define CFI_PUSH(REG) \ 71 cfi_adjust_cfa_offset (4); \ 72 cfi_rel_offset (REG, 0) 73 74 #define CFI_POP(REG) \ 75 cfi_adjust_cfa_offset (-4); \ 76 cfi_restore (REG) 77 78 #define PUSH(REG) pushl REG; CFI_PUSH (REG) 79 #define POP(REG) popl REG; CFI_POP (REG) 80 81 #define PARMS 4 82 #define STR1 PARMS+4 83 #define STR2 STR1+4 84 85 #define USE_AS_WCSCAT 86 87 .text 88 ENTRY (wcscat) 89 PUSH (%edi) 90 mov STR1(%esp), %edi 91 mov %edi, %edx 92 93 #define RETURN jmp L(WcscpyAtom) 94 #include "sse2-wcslen-atom.S" 95 96 L(WcscpyAtom): 97 shl $2, %eax 98 mov STR2(%esp), %ecx 99 lea (%edi, %eax), %edx 100 101 cmpl $0, (%ecx) 102 jz L(Exit4) 103 cmpl $0, 4(%ecx) 104 jz L(Exit8) 105 cmpl $0, 8(%ecx) 106 jz L(Exit12) 107 cmpl $0, 12(%ecx) 108 jz L(Exit16) 109 110 #undef RETURN 111 #define RETURN POP(%edi); ret; CFI_PUSH(%edi) 112 #include "ssse3-wcscpy-atom.S" 113 114 END (wcscat) 115
