diff options
Diffstat (limited to 'sysdeps/s390/strcpy-z900.S')
| -rw-r--r-- | sysdeps/s390/strcpy-z900.S | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/sysdeps/s390/strcpy-z900.S b/sysdeps/s390/strcpy-z900.S new file mode 100644 index 0000000000..42798b1fd5 --- /dev/null +++ b/sysdeps/s390/strcpy-z900.S @@ -0,0 +1,56 @@ +/* strcpy - copy a string from source to destination. 64/31 bit S/390 version. + Copyright (C) 2001-2018 Free Software Foundation, Inc. + Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +/* INPUT PARAMETERS + %r2 = address of destination + %r3 = address of source. */ + +#include <ifunc-strcpy.h> +#include "sysdep.h" +#include "asm-syntax.h" + +#if HAVE_STRCPY_Z900_G5 +# if defined __s390x__ +# define SLGR slgr +# define LGR lgr +# else +# define SLGR slr +# define LGR lr +# endif /* ! defined __s390x__ */ + + .text +ENTRY(STRCPY_Z900_G5) + SLGR %r0,%r0 + LGR %r1,%r2 +0: mvst %r1,%r3 + jo 0b + br %r14 +END(STRCPY_Z900_G5) + +# undef SLGR +# undef LGR + +# if ! HAVE_STRCPY_IFUNC +strong_alias (STRCPY_Z900_G5, strcpy) +# endif + +# if defined SHARED && IS_IN (libc) +strong_alias (STRCPY_Z900_G5, __GI_strcpy) +# endif +#endif |