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e279e90b6a
* sysdeps/posix/open64.c: Likewise. * sysdeps/generic/fegetenv.c: Likewise. * sysdeps/powerpc/fpu/fegetenv.c: Likewise. * sysdeps/powerpc/fpu/fesetenv.c: Likewise. * sysdeps/powerpc/fpu/feupdateenv.c: Likewise. * sysdeps/powerpc/fpu/fgetexcptflg.c: Likewise. * sysdeps/powerpc/fpu/fraiseexcpt.c: Likewise. * sysdeps/powerpc/fpu/fsetexcptflg.c: Likewise. 2000-07-12 Greg McGary <greg@mcgary.org> * sysdeps/generic/open64.c: Wrap extern symbols in BP_SYM (). * sysdeps/posix/open64.c: Likewise. * sysdeps/generic/fegetenv.c: Likewise. * sysdeps/powerpc/fpu/fegetenv.c: Likewise. * sysdeps/powerpc/fpu/fesetenv.c: Likewise. * sysdeps/powerpc/fpu/feupdateenv.c: Likewise. * sysdeps/powerpc/fpu/fgetexcptflg.c: Likewise. * sysdeps/powerpc/fpu/fraiseexcpt.c: Likewise. * sysdeps/powerpc/fpu/fsetexcptflg.c: Likewise.
61 lines
2.2 KiB
C
61 lines
2.2 KiB
C
/* Raise given exceptions.
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Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <fenv_libc.h>
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#include <bp-sym.h>
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#undef feraiseexcept
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int
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__feraiseexcept (int excepts)
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{
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fenv_union_t u;
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/* Raise exceptions represented by EXCEPTS. It is the responsibility of
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the OS to ensure that if multiple exceptions occur they are fed back
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to this process in the proper way; this can happen in hardware,
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anyway (in particular, inexact with overflow or underflow). */
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/* Get the current state. */
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u.fenv = fegetenv_register ();
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/* Add the exceptions */
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u.l[1] = (u.l[1]
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| (excepts & FPSCR_STICKY_BITS)
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/* Turn FE_INVALID into FE_INVALID_SOFTWARE. */
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| (excepts >> ((31 - FPSCR_VX) - (31 - FPSCR_VXSOFT))
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& FE_INVALID_SOFTWARE));
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/* Store the new status word (along with the rest of the environment),
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triggering any appropriate exceptions. */
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fesetenv_register (u.fenv);
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if ((excepts & FE_INVALID)
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/* For some reason, some PowerPC chips (the 601, in particular)
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don't have FE_INVALID_SOFTWARE implemented. Detect this
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case and raise FE_INVALID_SNAN instead. */
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&& !fetestexcept (FE_INVALID))
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set_fpscr_bit (FPSCR_VXSNAN);
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/* Success. */
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return 0;
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}
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strong_alias (__feraiseexcept, __old_feraiseexcept)
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symbol_version (BP_SYM (__old_feraiseexcept), BP_SYM (feraiseexcept), GLIBC_2.1);
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default_symbol_version (BP_SYM (__feraiseexcept), BP_SYM (feraiseexcept), GLIBC_2.2);
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