From 91a1f3fea0d6c5bc304562c313171d8cf765b910 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Thu, 28 Nov 2013 18:01:41 +0000 Subject: Add powerpc-nofpu/e500 support functions for atomic compound assignment and FLT_ROUNDS. --- sysdeps/powerpc/nofpu/atomic-feupdateenv.c | 37 ++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 sysdeps/powerpc/nofpu/atomic-feupdateenv.c (limited to 'sysdeps/powerpc/nofpu/atomic-feupdateenv.c') diff --git a/sysdeps/powerpc/nofpu/atomic-feupdateenv.c b/sysdeps/powerpc/nofpu/atomic-feupdateenv.c new file mode 100644 index 0000000000..9334e1192c --- /dev/null +++ b/sysdeps/powerpc/nofpu/atomic-feupdateenv.c @@ -0,0 +1,37 @@ +/* Install given floating-point environment and raise exceptions for + atomic compound assignment. + Copyright (C) 2013 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-fp.h" +#include "soft-supp.h" +#include + +void +__atomic_feupdateenv (const fenv_t *envp) +{ + fenv_union_t u; + int saved_exceptions = __sim_exceptions_thread; + + /* This function postdates the global variables being turned into + compat symbols, so no need to set them. */ + u.fenv = *envp; + __sim_exceptions_thread |= u.l[0]; + __sim_disabled_exceptions_thread = u.l[1]; + if (saved_exceptions & ~__sim_disabled_exceptions_thread) + raise (SIGFPE); +} -- cgit 1.4.1