diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/alpha/llseek.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/llseek.S | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/llseek.S b/sysdeps/unix/sysv/linux/alpha/llseek.S new file mode 100644 index 0000000000..7f2a49172a --- /dev/null +++ b/sysdeps/unix/sysv/linux/alpha/llseek.S @@ -0,0 +1,49 @@ +/* Copyright (C) 1993, 1995 Free Software Foundation, Inc. + Contributed by David Mosberger (davidm@cs.arizona.edu). + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +/* For compatibility only: a "long" is 64 bits on the Alpha, so + llseek() isn't really needed. But there are some programs out + there who may depend on it being around. +*/ + +#include <sysdep.h> + + .text +ENTRY(llseek) + .prologue 0 + + mov a3, t0 /* save result address */ + + sll a1, 32, a1 /* build a 64 bit ofs out of 32 bit operands */ + zap a2, 0xf0, a2 + bis a2, a1, a1 + + mov a4, a2 /* shift down whence */ + + ldi v0, __NR_lseek + call_pal PAL_callsys + bne a3, error + + stq v0, 0(t0) + ret + +error: br gp, 1f +1: ldgp gp, 0(gp) + jmp zero, syscall_error + + .end llseek |