| /* Copyright (C) 1996-2016 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Richard Henderson <rth@tamu.edu>, 1996. |
| |
| 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/>. */ |
| |
| /* Copy a null-terminated string from SRC to DST. Return a pointer |
| to the null-terminator in the source. */ |
| |
| #include <sysdep.h> |
| |
| .text |
| |
| ENTRY(__stpcpy) |
| ldgp gp, 0(pv) |
| #ifdef PROF |
| .set noat |
| lda AT, _mcount |
| jsr AT, (AT), _mcount |
| .set at |
| #endif |
| .prologue 1 |
| |
| jsr t9, __stxcpy # do the work of the copy |
| |
| and t8, 0xf0, t2 # binary search for byte offset of the |
| and t8, 0xcc, t1 # last byte written. |
| and t8, 0xaa, t0 |
| andnot a0, 7, a0 |
| cmovne t2, 4, t2 |
| cmovne t1, 2, t1 |
| cmovne t0, 1, t0 |
| addq a0, t2, v0 |
| addq t0, t1, t0 |
| addq v0, t0, v0 |
| |
| ret |
| |
| END(__stpcpy) |
| |
| weak_alias (__stpcpy, stpcpy) |
| libc_hidden_def (__stpcpy) |
| libc_hidden_builtin_def (stpcpy) |