1 files changed, 59 insertions, 0 deletions
diff --git a/sysdeps/powerpc/fpu/fraiseexcpt.c b/sysdeps/powerpc/fpu/fraiseexcpt.c
new file mode 100644
index 0000000000..b72f7cb797
--- /dev/null
+++ b/sysdeps/powerpc/fpu/fraiseexcpt.c
@@ -0,0 +1,59 @@
+/* Raise given exceptions.
+   Copyright (C) 1997, 1999 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fenv_libc.h>
+
+#undef feraiseexcept
+int
+__feraiseexcept (int excepts)
+{
+  fenv_union_t u;
+
+  /* Raise exceptions represented by EXCEPTS.  It is the responsibility of
+     the OS to ensure that if multiple exceptions occur they are fed back
+     to this process in the proper way; this can happen in hardware,
+     anyway (in particular, inexact with overflow or underflow). */
+
+  /* Get the current state.  */
+  u.fenv = fegetenv_register ();
+
+  /* Add the exceptions */
+  u.l[1] = (u.l[1]
+	    | (excepts & FPSCR_STICKY_BITS)
+	    /* Turn FE_INVALID into FE_INVALID_SOFTWARE.  */
+	    | (excepts >> ((31 - FPSCR_VX) - (31 - FPSCR_VXSOFT))
+	       & FE_INVALID_SOFTWARE));
+
+  /* Store the new status word (along with the rest of the environment),
+     triggering any appropriate exceptions.  */
+  fesetenv_register (u.fenv);
+
+  if ((excepts & FE_INVALID)
+      /* For some reason, some PowerPC chips (the 601, in particular)
+	 don't have FE_INVALID_SOFTWARE implemented.  Detect this
+	 case and raise FE_INVALID_SNAN instead.  */
+      && !fetestexcept (FE_INVALID))
+    set_fpscr_bit (FPSCR_VXSNAN);
+
+  /* Success.  */
+  return 0;
+}
+strong_alias (__feraiseexcept, __old_feraiseexcept)
+symbol_version (__old_feraiseexcept, feraiseexcept, GLIBC_2.1);
+default_symbol_version (__feraiseexcept, feraiseexcept, GLIBC_2.1.3);