sysdeps/unix/sysv/linux/alpha/ieee_get_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         .text
  24
  25 ENTRY(__ieee_get_fp_control)
  26         cfi_startproc
  27         PSEUDO_PROLOGUE
  28
  29         lda     sp, -16(sp)
  30         cfi_adjust_cfa_offset(16)
  31
  32         mov     sp, a1
  33         ldi     a0, GSI_IEEE_FP_CONTROL
  34         ldi     v0, __NR_osf_getsysinfo
  35         call_pal PAL_callsys
  36
  37         ldq     t0, 0(sp)
  38         lda     sp, 16(sp)
  39         cfi_adjust_cfa_offset(-16)
  40
  41         bne     a3, SYSCALL_ERROR_LABEL
  42
  43         mov     t0, v0
  44         ret
  45
  46 PSEUDO_END(__ieee_get_fp_control)
  47         cfi_endproc
  48
  49 libc_hidden_def(__ieee_get_fp_control)
  50 weak_alias (__ieee_get_fp_control, ieee_get_fp_control)