sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S

   1 /* Copyright (C) 1993-2019 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by David Mosberger <davidm@azstarnet.com>, 1995.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library.  If not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <sysdep.h>
  20 #include "kernel_sysinfo.h"
  21
  22
  23 ENTRY(__ieee_set_fp_control)
  24         cfi_startproc
  25         PSEUDO_PROLOGUE
  26
  27         lda     sp, -16(sp)
  28         cfi_adjust_cfa_offset(16)
  29
  30         ldi     v0, __NR_osf_setsysinfo
  31         stq     a0, 0(sp)
  32         mov     sp, a1
  33         ldi     a0, SSI_IEEE_FP_CONTROL
  34         call_pal PAL_callsys
  35
  36         lda     sp, 16(sp)
  37         cfi_adjust_cfa_offset(-16)
  38
  39         bne     a3, SYSCALL_ERROR_LABEL
  40         ret
  41
  42 PSEUDO_END(__ieee_set_fp_control)
  43         cfi_endproc
  44
  45 libc_hidden_def(__ieee_set_fp_control)
  46 weak_alias (__ieee_set_fp_control, ieee_set_fp_control)