* sysdeps/unix/sysv/linux/alpha/fpu/Implies: New file.

	* sysdeps/alpha/fpu/s_ceil.c: Include math_ldbl_opt.h, add
	compat_symbol if LONG_DOUBLE_COMPAT.
	* sysdeps/alpha/fpu/s_copysign.c: Likewise.
	* sysdeps/alpha/fpu/s_fabs.c: Likewise.
	* sysdeps/alpha/fpu/s_floor.c: Likewise.
	* sysdeps/alpha/fpu/s_rint.c: Likewise.
	* sysdeps/alpha/soft-fp/e_sqrtl.c: New file.
	* sysdeps/alpha/Implies: Add ieee754/ldbl-128.

	* sysdeps/unix/sysv/linux/alpha/bits/wordsize.h: New file.
	* sysdeps/unix/sysv/linux/alpha/Implies: Add ieee754/ldbl-64-128,
	ieee754/ldbl-opt.
	* sysdeps/alpha/bits/mathdef.h (__NO_LONG_DOUBLE_MATH): Remove.
	* sysdeps/unix/sysv/linux/alpha/nldbl-abi.h: New file.
	* sysdeps/unix/sysv/linux/alpha/Makefile
	[$(subdir) = math] (libm-routines): Add multc3, divtc3.

ChangeLog

@@ -1,5 +1,23 @@
 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
 
+	* sysdeps/unix/sysv/linux/alpha/fpu/Implies: New file.
+	* sysdeps/alpha/fpu/s_ceil.c: Include math_ldbl_opt.h, add
+	compat_symbol if LONG_DOUBLE_COMPAT.
+	* sysdeps/alpha/fpu/s_copysign.c: Likewise.
+	* sysdeps/alpha/fpu/s_fabs.c: Likewise.
+	* sysdeps/alpha/fpu/s_floor.c: Likewise.
+	* sysdeps/alpha/fpu/s_rint.c: Likewise.
+	* sysdeps/alpha/soft-fp/e_sqrtl.c: New file.
+	* sysdeps/alpha/Implies: Add ieee754/ldbl-128.
+
+	* sysdeps/unix/sysv/linux/alpha/bits/wordsize.h: New file.
+	* sysdeps/unix/sysv/linux/alpha/Implies: Add ieee754/ldbl-64-128,
+	ieee754/ldbl-opt.
+	* sysdeps/alpha/bits/mathdef.h (__NO_LONG_DOUBLE_MATH): Remove.
+	* sysdeps/unix/sysv/linux/alpha/nldbl-abi.h: New file.
+	* sysdeps/unix/sysv/linux/alpha/Makefile
+	[$(subdir) = math] (libm-routines): Add multc3, divtc3.
+
 	* math/divtc3.c: New file.
 	* math/multc3.c: New file.
 	* sysdeps/unix/sysv/linux/sparc/sparc32/Makefile

sysdeps/alpha/Implies

@@ -1,5 +1,6 @@
 wordsize-64
-# Alpha uses IEEE 754 single and double precision floating point.
-ieee754/flt-32
+# Alpha uses IEEE 754 single, double and quad precision floating point.
+ieee754/ldbl-128
 ieee754/dbl-64
+ieee754/flt-32
 alpha/soft-fp

sysdeps/alpha/bits/mathdef.h

@@ -1,5 +1,5 @@
-/* Copyright (C) 1997, 1998, 1999, 2000, 2003, 2004
-   Free Software Foundation, Inc.
+/* Copyright (C) 1997,1998,1999,2000,2003,2004,2006
+	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
@@ -55,12 +55,6 @@ typedef double double_t;
 
 #endif	/* ISO C99 && MATH_H */
 
-#ifndef __NO_LONG_DOUBLE_MATH
-/* Signal that we do not really have a `long double'.  The disables the
-   declaration of all the `long double' function variants.  */
-# define __NO_LONG_DOUBLE_MATH	1
-#endif
-
 #if defined _COMPLEX_H && !defined _COMPLEX_H_MATHDEF
 # define _COMPLEX_H_MATHDEF 1
 # if defined(__GNUC__) && !__GNUC_PREREQ(3,4)

sysdeps/alpha/fpu/s_ceil.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 1998, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Richard Henderson.
 
@@ -18,6 +18,7 @@
    02111-1307 USA.  */
 
 #include <math.h>
+#include <math_ldbl_opt.h>
 
 /* Use the -inf rounding mode conversion instructions to implement
    ceil, via something akin to -floor(-x).  This is much faster than
@@ -52,3 +53,6 @@ weak_alias (__ceil, ceil)
 strong_alias (__ceil, __ceill)
 weak_alias (__ceil, ceill)
 #endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+compat_symbol (libm, __ceil, ceill, GLIBC_2_0);
+#endif

sysdeps/alpha/fpu/s_copysign.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2000 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Richard Henderson.
 
@@ -18,6 +18,7 @@
    02111-1307 USA.  */
 
 #include <math.h>
+#include <math_ldbl_opt.h>
 
 double
 __copysign (double x, double y)
@@ -31,3 +32,10 @@ weak_alias (__copysign, copysign)
 strong_alias (__copysign, __copysignl)
 weak_alias (__copysign, copysignl)
 #endif
+#ifdef IS_IN_libm
+# if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+compat_symbol (libm, __copysign, copysignl, GLIBC_2_0);
+# endif
+#elif LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
+compat_symbol (libc, __copysign, copysignl, GLIBC_2_0);
+#endif

sysdeps/alpha/fpu/s_fabs.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2000 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Richard Henderson.
 
@@ -18,6 +18,7 @@
    02111-1307 USA.  */
 
 #include <math.h>
+#include <math_ldbl_opt.h>
 
 double
 __fabs (double x)
@@ -35,3 +36,6 @@ weak_alias (__fabs, fabs)
 strong_alias (__fabs, __fabsl)
 weak_alias (__fabs, fabsl)
 #endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+compat_symbol (libm, __fabs, fabsl, GLIBC_2_0);
+#endif

sysdeps/alpha/fpu/s_floor.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 1999, 2000, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Richard Henderson.
 
@@ -18,6 +18,7 @@
    02111-1307 USA.  */
 
 #include <math.h>
+#include <math_ldbl_opt.h>
 
 
 /* Use the -inf rounding mode conversion instructions to implement
@@ -53,3 +54,6 @@ weak_alias (__floor, floor)
 strong_alias (__floor, __floorl)
 weak_alias (__floor, floorl)
 #endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+compat_symbol (libm, __floor, floorl, GLIBC_2_0);
+#endif

sysdeps/alpha/fpu/s_rint.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2000 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Richard Henderson.
 
@@ -18,6 +18,7 @@
    02111-1307 USA.  */
 
 #include <math.h>
+#include <math_ldbl_opt.h>
 
 
 double
@@ -48,3 +49,6 @@ weak_alias (__rint, rint)
 strong_alias (__rint, __rintl)
 weak_alias (__rint, rintl)
 #endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+compat_symbol (libm, __rint, rintl, GLIBC_2_0);
+#endif

sysdeps/alpha/soft-fp/e_sqrtl.c

@@ -0,0 +1,37 @@
+/* long double square root in software floating-point emulation.
+   Copyright (C) 1997, 1999, 2006 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include "local-soft-fp.h"
+
+long double
+__ieee754_sqrtl (const long double a)
+{
+  FP_DECL_EX;
+  FP_DECL_Q(A); FP_DECL_Q(C);
+  long double c;
+
+  FP_INIT_ROUNDMODE;
+  FP_UNPACK_Q(A, a);
+  FP_SQRT_Q(C, A);
+  FP_PACK_Q(c, C);
+  FP_HANDLE_EXCEPTIONS;
+  return c;
+}

sysdeps/unix/sysv/linux/alpha/Implies

@@ -1 +1,4 @@
 unix/sysv/linux/wordsize-64
+# These supply the ABI compatibility for when long double was double.
+ieee754/ldbl-64-128
+ieee754/ldbl-opt

sysdeps/unix/sysv/linux/alpha/Makefile

@@ -26,3 +26,13 @@ endif
 ifeq ($(subdir),signal)
 sysdep_routines += rt_sigaction
 endif
+
+ifeq ($(subdir),math)
+# These 2 routines are normally in libgcc{.a,_s.so.1}.
+# However, alpha -mlong-double-128 libgcc relies on
+# glibc providing _Ots* routines and without these files
+# glibc relies on __multc3/__divtc3 only provided
+# by libgcc if configured with -mlong-double-128.
+# Provide these routines here as well.
+libm-routines += multc3 divtc3
+endif   # math

sysdeps/unix/sysv/linux/alpha/bits/wordsize.h

@@ -0,0 +1,30 @@
+/* Copyright (C) 1999, 2006 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#define __WORDSIZE	64
+
+#if !defined __NO_LONG_DOUBLE_MATH && !defined __LONG_DOUBLE_MATH_OPTIONAL
+
+/* Signal that we didn't used to have a `long double'. The changes all
+   the `long double' function variants to be redirects to the double
+   functions.  */
+# define __LONG_DOUBLE_MATH_OPTIONAL	1
+# ifndef __LONG_DOUBLE_128__
+#  define __NO_LONG_DOUBLE_MATH		1
+# endif
+#endif

sysdeps/unix/sysv/linux/alpha/fpu/Implies

@@ -0,0 +1,2 @@
+# Override ldbl-opt with alpha specific routines.
+alpha/fpu

sysdeps/unix/sysv/linux/alpha/nldbl-abi.h

@@ -0,0 +1,8 @@
+/* ABI version for long double switch.
+   This is used by the Versions and math_ldbl_opt.h files in
+   sysdeps/ieee754/ldbl-opt/.  It gives the ABI version where
+   long double == double was replaced with proper long double
+   for libm *l functions and libc functions using long double.  */
+
+#define NLDBL_VERSION			GLIBC_2.4
+#define LONG_DOUBLE_COMPAT_VERSION	GLIBC_2_4