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Add fesetexcept: powerpc. 

This patch adds PowerPC versions of fesetexcept.

	* sysdeps/powerpc/fpu/fesetexcept.c: New file.
	* sysdeps/powerpc/nofpu/fesetexcept.c: Likewise.
	* sysdeps/powerpc/powerpc32/e500/nofpu/fesetexcept.c: Likewise.
This commit is contained in:
Joseph Myers 2016-08-16 16:22:12 +00:00
parent 760c61e944
commit b22be8c368
4 changed files with 111 additions and 0 deletions
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4
ChangeLog
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2016-08-16 Joseph Myers <joseph@codesourcery.com>
* sysdeps/powerpc/fpu/fesetexcept.c: New file.
* sysdeps/powerpc/nofpu/fesetexcept.c: Likewise.
* sysdeps/powerpc/powerpc32/e500/nofpu/fesetexcept.c: Likewise.
* sysdeps/mips/fpu/fesetexcept.c: New file.
* sysdeps/m68k/fpu/fesetexcept.c: New file.

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sysdeps/powerpc/fpu/fesetexcept.c Normal file
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/* Set given exception flags. PowerPC 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_libc.h>
int
fesetexcept (int excepts)
{
fenv_union_t u, n;
u.fenv = fegetenv_register ();
n.l = (u.l
| (excepts & FPSCR_STICKY_BITS)
/* Turn FE_INVALID into FE_INVALID_SOFTWARE. */
| (excepts >> ((31 - FPSCR_VX) - (31 - FPSCR_VXSOFT))
& FE_INVALID_SOFTWARE));
if (n.l != u.l)
{
fesetenv_register (n.fenv);
/* Deal with FE_INVALID_SOFTWARE not being implemented on some chips. */
if (excepts & FE_INVALID)
feraiseexcept (FE_INVALID);
}
return 0;
}

28
sysdeps/powerpc/nofpu/fesetexcept.c Normal file
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/* Set given exception flags. PowerPC soft-float 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 "soft-supp.h"
int
fesetexcept (int excepts)
{
__sim_exceptions_thread |= (excepts & FE_ALL_EXCEPT);
SIM_SET_GLOBAL (__sim_exceptions_global, __sim_exceptions_thread);
return 0;
}

37
sysdeps/powerpc/powerpc32/e500/nofpu/fesetexcept.c Normal file
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/* Set given exception flags. e500 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_libc.h>
int
fesetexcept (int excepts)
{
unsigned long old_spefscr, spefscr;
int excepts_spe = __fexcepts_to_spe (excepts);
old_spefscr = fegetenv_register ();
spefscr = old_spefscr | excepts_spe;
fesetenv_register (spefscr);
/* If the state of the "invalid" or "underflow" flag has changed,
inform the kernel. */
if (((spefscr ^ old_spefscr) & (SPEFSCR_FINVS | SPEFSCR_FUNFS)) != 0)
__fe_note_change ();
return 0;
}