From b22be8c36833338070c911081c9f0a83a1fbe3d5 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Tue, 16 Aug 2016 16:22:12 +0000 Subject: 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. --- sysdeps/powerpc/fpu/fesetexcept.c | 42 ++++++++++++++++++++++ sysdeps/powerpc/nofpu/fesetexcept.c | 28 +++++++++++++++ sysdeps/powerpc/powerpc32/e500/nofpu/fesetexcept.c | 37 +++++++++++++++++++ 3 files changed, 107 insertions(+) create mode 100644 sysdeps/powerpc/fpu/fesetexcept.c create mode 100644 sysdeps/powerpc/nofpu/fesetexcept.c create mode 100644 sysdeps/powerpc/powerpc32/e500/nofpu/fesetexcept.c (limited to 'sysdeps') diff --git a/sysdeps/powerpc/fpu/fesetexcept.c b/sysdeps/powerpc/fpu/fesetexcept.c new file mode 100644 index 0000000000..fdd98f92a4 --- /dev/null +++ b/sysdeps/powerpc/fpu/fesetexcept.c @@ -0,0 +1,42 @@ +/* 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 + . */ + +#include + +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; +} diff --git a/sysdeps/powerpc/nofpu/fesetexcept.c b/sysdeps/powerpc/nofpu/fesetexcept.c new file mode 100644 index 0000000000..3b19665cac --- /dev/null +++ b/sysdeps/powerpc/nofpu/fesetexcept.c @@ -0,0 +1,28 @@ +/* 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 + . */ + +#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; +} diff --git a/sysdeps/powerpc/powerpc32/e500/nofpu/fesetexcept.c b/sysdeps/powerpc/powerpc32/e500/nofpu/fesetexcept.c new file mode 100644 index 0000000000..ff82f223ed --- /dev/null +++ b/sysdeps/powerpc/powerpc32/e500/nofpu/fesetexcept.c @@ -0,0 +1,37 @@ +/* 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 + . */ + +#include + +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; +} -- cgit 1.4.1