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Add femode_t functions: aarch64.

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This patch adds AArch64 versions of fegetmode and fesetmode.
Untested.

	* sysdeps/aarch64/fpu/fegetmode.c: New file.
	* sysdeps/aarch64/fpu/fesetmode.c: Likewise.
This commit is contained in:
Joseph Myers 2016-09-07 16:41:20 +00:00
parent ec94343f59
commit 1396c647a9
3 changed files with 64 additions and 0 deletions
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ChangeLog
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2016-09-07 Joseph Myers <joseph@codesourcery.com>
* sysdeps/aarch64/fpu/fegetmode.c: New file.
* sysdeps/aarch64/fpu/fesetmode.c: Likewise.
* math/fegetmode.c: New file.
* math/fesetmode.c: Likewise.
* sysdeps/i386/fpu/fegetmode.c: Likewise.

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sysdeps/aarch64/fpu/fegetmode.c Normal file
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/* Store current floating-point control modes. AArch64 version.
Copyright (C) 2016 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
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, see
<http://www.gnu.org/licenses/>. */
#include <fenv.h>
#include <fpu_control.h>
int
fegetmode (femode_t *modep)
{
_FPU_GETCW (*modep);
return 0;
}

34
sysdeps/aarch64/fpu/fesetmode.c Normal file
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/* Install given floating-point control modes. AArch64 version.
Copyright (C) 2016 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
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, see
<http://www.gnu.org/licenses/>. */
#include <fenv.h>
#include <fpu_control.h>
int
fesetmode (const femode_t *modep)
{
fpu_control_t fpcr, fpcr_new;
_FPU_GETCW (fpcr);
if (modep == FE_DFL_MODE)
fpcr_new = (fpcr & _FPU_RESERVED) | _FPU_DEFAULT;
else
fpcr_new = *modep;
if (fpcr != fpcr_new)
_FPU_SETCW (fpcr_new);
return 0;
}