12 files changed, 466 insertions, 0 deletions
diff --git a/sysdeps/sparc/fpu/bits/mathdef.h b/sysdeps/sparc/fpu/bits/mathdef.h
new file mode 100644
index 0000000000..0bc9c94ecc
--- /dev/null
+++ b/sysdeps/sparc/fpu/bits/mathdef.h
@@ -0,0 +1,64 @@
+/* Copyright (C) 1997 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.  */
+
+#ifndef _MATH_H
+#error "Never use <bits/mathdef.h> directly; include <math.h> instead"
+#endif
+
+/* FIXME! This file describes properties of the compiler, not the machine;
+   it should not be part of libc!  */
+
+#ifdef __GNUC__
+#if __STDC__ == 1
+
+/* In GNU or ANSI mode, gcc leaves `float' expressions as-is.  */
+typedef float float_t;
+typedef double double_t;
+
+/* Signal that types stay as they were declared.  */
+#define FLT_EVAL_METHOD	0
+
+/* Define `INFINITY' as value of type `float_t'.  */
+#define INFINITY	HUGE_VALF
+
+#else 
+
+/* For `gcc -traditional', `float' expressions are evaluated as `double'. */
+typedef double float_t;
+typedef double double_t;
+
+/* Signal that both types are `double'.  */
+#define FLT_EVAL_METHOD	1
+
+/* Define `INFINITY' as value of type `float_t'.  */
+#define INFINITY	HUGE_VAL
+
+#endif
+#else
+
+/* Wild guess at types for float_t and double_t. */
+typedef double float_t;
+typedef double double_t;
+
+/* Strange compiler, we don't know how it works.  */
+#define FLT_EVAL_METHOD	-1
+
+/* Define `INFINITY' as value of type `float_t'.  */
+#define INFINITY	HUGE_VAL
+
+#endif
diff --git a/sysdeps/sparc/fpu/fclrexcpt.c b/sysdeps/sparc/fpu/fclrexcpt.c
new file mode 100644
index 0000000000..8dc68e84e9
--- /dev/null
+++ b/sysdeps/sparc/fpu/fclrexcpt.c
@@ -0,0 +1,32 @@
+/* Clear given exceptions in current floating-point environment.
+   Copyright (C) 1997 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.h>
+
+void
+feclearexcept (int excepts)
+{
+  fenv_t tmp;
+
+  __fenv_stfsr (tmp);
+
+  tmp &= ~(excepts & FE_ALL_EXCEPT);
+
+  __fenv_ldfsr (tmp);
+}
diff --git a/sysdeps/sparc/fpu/fegetenv.c b/sysdeps/sparc/fpu/fegetenv.c
new file mode 100644
index 0000000000..a796ccb731
--- /dev/null
+++ b/sysdeps/sparc/fpu/fegetenv.c
@@ -0,0 +1,26 @@
+/* Store current floating-point environment.
+   Copyright (C) 1997 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.h>
+
+void
+fegetenv (fenv_t *envp)
+{
+  __fenv_stfsr (*envp);
+}
diff --git a/sysdeps/sparc/fpu/fegetround.c b/sysdeps/sparc/fpu/fegetround.c
new file mode 100644
index 0000000000..ea1df2b6d8
--- /dev/null
+++ b/sysdeps/sparc/fpu/fegetround.c
@@ -0,0 +1,30 @@
+/* Return current rounding direction.
+   Copyright (C) 1997 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.h>
+
+int
+fegetround (void)
+{
+  fenv_t tmp;
+
+  __fenv_stfsr (tmp);
+
+  return tmp & __FE_ROUND_MASK;
+}
diff --git a/sysdeps/sparc/fpu/feholdexcpt.c b/sysdeps/sparc/fpu/feholdexcpt.c
new file mode 100644
index 0000000000..9b4c2134f7
--- /dev/null
+++ b/sysdeps/sparc/fpu/feholdexcpt.c
@@ -0,0 +1,35 @@
+/* Store current floating-point environment and clear exceptions.
+   Copyright (C) 1997 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.h>
+
+int
+feholdexcept (fenv_t *envp)
+{
+  fenv_t tmp;
+
+  __fenv_stfsr (*envp);
+
+  /* Set all exceptions to non-stop.  */
+  tmp = *envp | (0x1f << 23);
+
+  __fenv_ldfsr (tmp);
+
+  return 1;
+}
diff --git a/sysdeps/sparc/fpu/fesetenv.c b/sysdeps/sparc/fpu/fesetenv.c
new file mode 100644
index 0000000000..44c5b2629c
--- /dev/null
+++ b/sysdeps/sparc/fpu/fesetenv.c
@@ -0,0 +1,43 @@
+/* Install given floating-point environment.
+   Copyright (C) 1997 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.h>
+
+void
+fesetenv (const fenv_t *envp)
+{
+  fenv_t dummy;
+
+  /* Put these constants in memory explicitly, so as to cope with a
+     -fPIC bug as of gcc 970624.  Making them automatic is quicker
+     than loading up the pic register in this instance.  */
+
+  if (envp == FE_DFL_ENV)
+    {
+      dummy = 0;
+      envp = &dummy;
+    }
+  else if (envp == FE_NOMASK_ENV)
+    {
+      dummy = 0x1f << 23;
+      envp = &dummy;
+    }
+
+  __fenv_ldfsr (*envp);
+}
diff --git a/sysdeps/sparc/fpu/fesetround.c b/sysdeps/sparc/fpu/fesetround.c
new file mode 100644
index 0000000000..74963d7573
--- /dev/null
+++ b/sysdeps/sparc/fpu/fesetround.c
@@ -0,0 +1,37 @@
+/* Set current rounding direction.
+   Copyright (C) 1997 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.h>
+
+int
+fesetround (int round)
+{
+  fenv_t tmp;
+
+  if ((round & ~__FE_ROUND_MASK) != 0)
+    /* ROUND is no valid rounding mode.  */
+    return 0;
+
+  __fenv_stfsr (tmp);
+  tmp &= ~__FE_ROUND_MASK;
+  tmp |= round;
+  __fenv_ldfsr (tmp);
+
+  return 1;
+}
diff --git a/sysdeps/sparc/fpu/feupdateenv.c b/sysdeps/sparc/fpu/feupdateenv.c
new file mode 100644
index 0000000000..0fba9975f8
--- /dev/null
+++ b/sysdeps/sparc/fpu/feupdateenv.c
@@ -0,0 +1,38 @@
+/* Install given floating-point environment and raise exceptions.
+   Copyright (C) 1997 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.h>
+
+void
+feupdateenv (const fenv_t *envp)
+{
+  fexcept_t tmp;
+
+  /* Save current exceptions.  */
+  __fenv_stfsr (tmp);
+  tmp &= FE_ALL_EXCEPT;
+
+  /* Install new environment.  */
+  fesetenv (envp);
+
+  /* Raise the safed exception.  Incidently for us the implementation
+     defined format of the values in objects of type fexcept_t is the
+     same as the ones specified using the FE_* constants.  */
+  feraiseexcept ((int) tmp);
+}
diff --git a/sysdeps/sparc/fpu/fgetexcptflg.c b/sysdeps/sparc/fpu/fgetexcptflg.c
new file mode 100644
index 0000000000..977c93e2ca
--- /dev/null
+++ b/sysdeps/sparc/fpu/fgetexcptflg.c
@@ -0,0 +1,31 @@
+/* Store current representation for exceptions.
+   Copyright (C) 1997 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.h>
+
+void
+fegetexceptflag (fexcept_t *flagp, int excepts)
+{
+  fexcept_t tmp;
+
+  /* Get the current exceptions.  */
+  __fenv_stfsr (tmp);
+
+  *flagp = tmp & excepts & FE_ALL_EXCEPT;
+}
diff --git a/sysdeps/sparc/fpu/fraiseexcpt.c b/sysdeps/sparc/fpu/fraiseexcpt.c
new file mode 100644
index 0000000000..308c9b2e7f
--- /dev/null
+++ b/sysdeps/sparc/fpu/fraiseexcpt.c
@@ -0,0 +1,66 @@
+/* Raise given exceptions.
+   Copyright (C) 1997 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.h>
+#include <math.h>
+
+static void
+ignore_me(double foo)
+{
+}
+
+void
+feraiseexcept (int excepts)
+{
+  /* Raise exceptions represented by EXPECTS.  But we must raise only
+     one signal at a time.  It is important the if the overflow/underflow
+     exception and the inexact exception are given at the same time,
+     the overflow/underflow exception follows the inexact exception.  */
+
+  /* First: invalid exception.  */
+  if ((FE_INVALID & excepts) != 0)
+    {
+      /* One example of a invalid operation is 0/0.  */
+      ignore_me (0.0 / 0.0);
+    }
+
+  /* Next: division by zero.  */
+  if ((FE_DIVBYZERO & excepts) != 0)
+    {
+      ignore_me (1.0 / 0.0);
+    }
+
+  /* Next: overflow.  */
+  if ((FE_OVERFLOW & excepts) != 0)
+    {
+      ignore_me (LDBL_MAX * LDBL_MAX);
+    }
+
+  /* Next: underflow.  */
+  if ((FE_UNDERFLOW & excepts) != 0)
+    {
+      ignore_me (LDBL_MIN / 16.0);
+    }
+
+  /* Last: inexact.  */
+  if ((FE_INEXACT & excepts) != 0)
+    {
+      ignore_me (1.0 / M_PI);
+    }
+}
diff --git a/sysdeps/sparc/fpu/fsetexcptflg.c b/sysdeps/sparc/fpu/fsetexcptflg.c
new file mode 100644
index 0000000000..1029cde03d
--- /dev/null
+++ b/sysdeps/sparc/fpu/fsetexcptflg.c
@@ -0,0 +1,34 @@
+/* Set floating-point environment exception handling.
+   Copyright (C) 1997 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.h>
+#include <math.h>
+
+void
+fesetexceptflag (const fexcept_t *flagp, int excepts)
+{
+  fenv_t tmp;
+
+  __fenv_stfsr (tmp);
+
+  tmp &= ~(excepts & FE_ALL_EXCEPT);
+  tmp |= *flagp & excepts & FE_ALL_EXCEPT;
+
+  __fenv_ldfsr (tmp);
+}
diff --git a/sysdeps/sparc/fpu/ftestexcept.c b/sysdeps/sparc/fpu/ftestexcept.c
new file mode 100644
index 0000000000..3efe9e896b
--- /dev/null
+++ b/sysdeps/sparc/fpu/ftestexcept.c
@@ -0,0 +1,30 @@
+/* Test exception in current environment.
+   Copyright (C) 1997 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.h>
+
+int
+fetestexcept (int excepts)
+{
+  int tmp;
+
+  __fenv_stfsr (tmp);
+
+  return tmp & excepts & FE_ALL_EXCEPT;
+}