From 29d73d867e1df54d703542cf7d076c5620dc2fb7 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Fri, 4 Oct 2013 16:02:33 +0000 Subject: Move powerpc ports pieces to libc. --- sysdeps/powerpc/nofpu/sim-full.c | 46 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 sysdeps/powerpc/nofpu/sim-full.c (limited to 'sysdeps/powerpc/nofpu/sim-full.c') diff --git a/sysdeps/powerpc/nofpu/sim-full.c b/sysdeps/powerpc/nofpu/sim-full.c new file mode 100644 index 0000000000..e16703323d --- /dev/null +++ b/sysdeps/powerpc/nofpu/sim-full.c @@ -0,0 +1,46 @@ +/* Software floating-point exception handling emulation. + Copyright (C) 2002-2013 Free Software Foundation, Inc. + Contributed by Aldy Hernandez , 2002. + 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 +#include "soft-fp.h" +#include "soft-supp.h" + +/* FIXME: these variables should be thread specific (see bugzilla bug + 15483) and ideally preserved across signal handlers, like hardware + FP status words, but the latter is quite difficult to accomplish in + userland. */ + +/* Global to store sticky exceptions. */ +int __sim_exceptions __attribute__ ((nocommon)); +libc_hidden_data_def (__sim_exceptions); + +/* By default, no exceptions should trap. */ +int __sim_disabled_exceptions = 0xffffffff; +libc_hidden_data_def (__sim_disabled_exceptions); + +int __sim_round_mode __attribute__ ((nocommon)); +libc_hidden_data_def (__sim_round_mode); + +void +__simulate_exceptions (int x) +{ + __sim_exceptions |= x; + if (x & ~__sim_disabled_exceptions) + raise (SIGFPE); +} -- cgit 1.4.1