| 1 | /******************************************************************************* |
|---|
| 2 | * |
|---|
| 3 | * Copyright (c) 1993 Intel Corporation |
|---|
| 4 | * |
|---|
| 5 | * Intel hereby grants you permission to copy, modify, and distribute this |
|---|
| 6 | * software and its documentation. Intel grants this permission provided |
|---|
| 7 | * that the above copyright notice appears in all copies and that both the |
|---|
| 8 | * copyright notice and this permission notice appear in supporting |
|---|
| 9 | * documentation. In addition, Intel grants this permission provided that |
|---|
| 10 | * you prominently mark as "not part of the original" any modifications |
|---|
| 11 | * made to this software or documentation, and that the name of Intel |
|---|
| 12 | * Corporation not be used in advertising or publicity pertaining to |
|---|
| 13 | * distribution of the software or the documentation without specific, |
|---|
| 14 | * written prior permission. |
|---|
| 15 | * |
|---|
| 16 | * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR |
|---|
| 17 | * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY |
|---|
| 18 | * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or |
|---|
| 19 | * representations regarding the use of, or the results of the use of, |
|---|
| 20 | * the software and documentation in terms of correctness, accuracy, |
|---|
| 21 | * reliability, currentness, or otherwise; and you rely on the software, |
|---|
| 22 | * documentation and results solely at your own risk. |
|---|
| 23 | * |
|---|
| 24 | * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, |
|---|
| 25 | * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES |
|---|
| 26 | * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM |
|---|
| 27 | * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. |
|---|
| 28 | * |
|---|
| 29 | ******************************************************************************/ |
|---|
| 30 | |
|---|
| 31 | .file "strdup.s" |
|---|
| 32 | #ifdef __PIC |
|---|
| 33 | .pic |
|---|
| 34 | #endif |
|---|
| 35 | #ifdef __PID |
|---|
| 36 | .pid |
|---|
| 37 | #endif |
|---|
| 38 | |
|---|
| 39 | /* |
|---|
| 40 | * (c) copyright 1989,1993 Intel Corp., all rights reserved |
|---|
| 41 | */ |
|---|
| 42 | |
|---|
| 43 | /* |
|---|
| 44 | procedure strdup (optimized assembler version: 80960K series, 80960CA) |
|---|
| 45 | |
|---|
| 46 | dest_addr = strdup (src_addr) |
|---|
| 47 | |
|---|
| 48 | Allocate memory and copy thereto the string pointed to by src_addr. |
|---|
| 49 | Return the address of the copy, or null if unable to perform the |
|---|
| 50 | operation. |
|---|
| 51 | */ |
|---|
| 52 | |
|---|
| 53 | .text |
|---|
| 54 | .align 2 |
|---|
| 55 | .globl _strdup |
|---|
| 56 | _strdup: |
|---|
| 57 | mov g0,r3 # Keep a copy of the original string addr |
|---|
| 58 | callj _strlen # Determine how much to allocate |
|---|
| 59 | addo 1,g0,g0 # Add one byte for the null byte at end |
|---|
| 60 | callj _malloc # Allocate the storage |
|---|
| 61 | cmpo 0,g0 |
|---|
| 62 | mov r3,g1 # Original string addr is now src for copy |
|---|
| 63 | bne.t _strcpy # Jump if allocation was successful |
|---|
| 64 | ret # Return the null ptr otherwise |
|---|
| 65 | |
|---|
| 66 | /* end of strdup */ |
|---|
