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2008-07-18 Joseph Myers <joseph@codesourcery.com> 

* sysdeps/arm/eabi/fgetexcptflg.c: New.
	* sysdeps/arm/eabi/fsetexcptflg.c (__fesetexceptflag): Operate on
	set exception flags, not on mask of enabled exceptions.
This commit is contained in:
Daniel Jacobowitz 2008-07-18 13:21:45 +00:00
parent e39762f948
commit 6b3dc26c76
3 changed files with 63 additions and 3 deletions
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6
ChangeLog.arm
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@ -1,3 +1,9 @@
2008-07-18 Joseph Myers <joseph@codesourcery.com>
* sysdeps/arm/eabi/fgetexcptflg.c: New.
* sysdeps/arm/eabi/fsetexcptflg.c (__fesetexceptflag): Operate on
set exception flags, not on mask of enabled exceptions.
2008-07-18 Joseph Myers <joseph@codesourcery.com>
* sysdeps/arm/eabi/feupdateenv.c: New.

54
sysdeps/arm/eabi/fgetexcptflg.c Normal file
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@ -0,0 +1,54 @@
/* Store current representation for exceptions.
Copyright (C) 1997, 1999, 2000, 2008 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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 <fenv.h>
#include <fpu_control.h>
#include <unistd.h>
#include <ldsodefs.h>
#include <dl-procinfo.h>
#include <sysdep.h>
int
__fegetexceptflag (fexcept_t *flagp, int excepts)
{
if (GLRO (dl_hwcap) & HWCAP_ARM_VFP)
{
unsigned long temp;
/* Get the current exceptions. */
_FPU_GETCW (temp);
*flagp = temp & excepts & FE_ALL_EXCEPT;
/* Success. */
return 0;
}
/* Unsupported, so fail. */
return 1;
}
#include <shlib-compat.h>
#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
strong_alias (__fegetexceptflag, __old_fegetexceptflag)
compat_symbol (libm, __old_fegetexceptflag, fegetexceptflag, GLIBC_2_1);
#endif
versioned_symbol (libm, __fegetexceptflag, fegetexceptflag, GLIBC_2_2);

6
sysdeps/arm/eabi/fsetexcptflg.c
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@ -1,5 +1,5 @@
/* Set floating-point environment exception handling.
Copyright (C) 1997,98,99,2000,01,05 Free Software Foundation, Inc.
Copyright (C) 1997,98,99,2000,01,05,08 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -37,8 +37,8 @@ __fesetexceptflag (const fexcept_t *flagp, int excepts)
_FPU_GETCW (temp);
/* Set the desired exception mask. */
temp &= ~((excepts & FE_ALL_EXCEPT) << FE_EXCEPT_SHIFT);
temp |= (*flagp & excepts & FE_ALL_EXCEPT) << FE_EXCEPT_SHIFT;
temp &= ~(excepts & FE_ALL_EXCEPT);
temp |= (*flagp & excepts & FE_ALL_EXCEPT);
/* Save state back to the FPU. */
_FPU_SETCW (temp);