From d5efd131d4e7143173f8faef331b7ec2c4af6340 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Mon, 16 Apr 2012 22:02:27 -0400 Subject: ia64: move from main tree This is a simple copy of the last version of ia64 in the main tree. It does not work as-is, but serves as a basis for follow up changes to restore it to working order. Signed-off-by: Mike Frysinger --- sysdeps/ia64/fpu/feholdexcpt.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 sysdeps/ia64/fpu/feholdexcpt.c (limited to 'sysdeps/ia64/fpu/feholdexcpt.c') diff --git a/sysdeps/ia64/fpu/feholdexcpt.c b/sysdeps/ia64/fpu/feholdexcpt.c new file mode 100644 index 0000000000..e50fbfada5 --- /dev/null +++ b/sysdeps/ia64/fpu/feholdexcpt.c @@ -0,0 +1,42 @@ +/* Store current floating-point environment and clear exceptions. + Copyright (C) 1997, 1999, 2000, 2005, 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Christian Boissat , 1999 + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include + +int +feholdexcept (fenv_t *envp) +{ + fenv_t fpsr; + /* Save the current state. */ + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); + *envp = fpsr; + + /* Set the trap disable bits. */ + fpsr |= FE_ALL_EXCEPT; + + /* And clear the exception bits. */ + fpsr &= ~(fenv_t) (FE_ALL_EXCEPT << 13); + + __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr)); + + /* Success. */ + return 0; +} +libm_hidden_def (feholdexcept) -- cgit 1.4.1