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914a4e05 | 1 | /* strcpy - copy a string from source to destination. 64/31 bit S/390 version. |
d614a753 | 2 | Copyright (C) 2001-2020 Free Software Foundation, Inc. |
847b055c | 3 | Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). |
ffeac417 | 4 | This file is part of the GNU C Library. |
847b055c | 5 | |
41bdb6e2 AJ |
6 | The GNU C Library is free software; you can redistribute it and/or |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
847b055c AJ |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, | |
41bdb6e2 | 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
847b055c | 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
41bdb6e2 | 14 | Lesser General Public License for more details. |
847b055c | 15 | |
41bdb6e2 | 16 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 17 | License along with the GNU C Library; if not, see |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
847b055c | 19 | |
ffeac417 UD |
20 | /* INPUT PARAMETERS |
21 | %r2 = address of destination | |
22 | %r3 = address of source. */ | |
847b055c | 23 | |
914a4e05 | 24 | #include <ifunc-strcpy.h> |
847b055c AJ |
25 | #include "sysdep.h" |
26 | #include "asm-syntax.h" | |
27 | ||
914a4e05 SL |
28 | #if HAVE_STRCPY_Z900_G5 |
29 | # if defined __s390x__ | |
30 | # define SLGR slgr | |
31 | # define LGR lgr | |
32 | # else | |
33 | # define SLGR slr | |
34 | # define LGR lr | |
35 | # endif /* ! defined __s390x__ */ | |
36 | ||
ffeac417 | 37 | .text |
914a4e05 SL |
38 | ENTRY(STRCPY_Z900_G5) |
39 | SLGR %r0,%r0 | |
40 | LGR %r1,%r2 | |
ffeac417 | 41 | 0: mvst %r1,%r3 |
847b055c AJ |
42 | jo 0b |
43 | br %r14 | |
914a4e05 SL |
44 | END(STRCPY_Z900_G5) |
45 | ||
46 | # undef SLGR | |
47 | # undef LGR | |
48 | ||
49 | # if ! HAVE_STRCPY_IFUNC | |
50 | strong_alias (STRCPY_Z900_G5, strcpy) | |
51 | # endif | |
52 | ||
53 | # if defined SHARED && IS_IN (libc) | |
54 | strong_alias (STRCPY_Z900_G5, __GI_strcpy) | |
55 | # endif | |
56 | #endif |