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-rw-r--r--REORG.TODO/sysdeps/powerpc/nofpu/sim-full.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/powerpc/nofpu/sim-full.c b/REORG.TODO/sysdeps/powerpc/nofpu/sim-full.c
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index 0000000000..da48f3714e
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+++ b/REORG.TODO/sysdeps/powerpc/nofpu/sim-full.c
@@ -0,0 +1,57 @@
+/* Software floating-point exception handling emulation.
+   Copyright (C) 2002-2017 Free Software Foundation, Inc.
+   Contributed by Aldy Hernandez <aldyh@redhat.com>, 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <signal.h>
+#include "soft-fp.h"
+#include "soft-supp.h"
+
+/* Thread-local to store sticky exceptions.  */
+__thread int __sim_exceptions_thread __attribute__ ((nocommon));
+libc_hidden_data_def (__sim_exceptions_thread);
+
+/* By default, no exceptions should trap.  */
+__thread int __sim_disabled_exceptions_thread = 0xffffffff;
+libc_hidden_data_def (__sim_disabled_exceptions_thread);
+
+__thread int __sim_round_mode_thread __attribute__ ((nocommon));
+libc_hidden_data_def (__sim_round_mode_thread);
+
+#if SIM_GLOBAL_COMPAT
+int __sim_exceptions_global __attribute__ ((nocommon));
+libc_hidden_data_def (__sim_exceptions_global);
+SIM_COMPAT_SYMBOL (__sim_exceptions_global, __sim_exceptions);
+
+int __sim_disabled_exceptions_global = 0xffffffff;
+libc_hidden_data_def (__sim_disabled_exceptions_global);
+SIM_COMPAT_SYMBOL (__sim_disabled_exceptions_global,
+		   __sim_disabled_exceptions);
+
+int __sim_round_mode_global __attribute__ ((nocommon));
+libc_hidden_data_def (__sim_round_mode_global);
+SIM_COMPAT_SYMBOL (__sim_round_mode_global, __sim_round_mode);
+#endif
+
+void
+__simulate_exceptions (int x)
+{
+  __sim_exceptions_thread |= x;
+  SIM_SET_GLOBAL (__sim_exceptions_global, __sim_exceptions_thread);
+  if (x & ~__sim_disabled_exceptions_thread)
+    raise (SIGFPE);
+}