2006-01-31 Jakub Jelinek <jakub@redhat.com>

	* 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.

diff --git a/sysdeps/alpha/bits/mathdef.h b/sysdeps/alpha/bits/mathdef.h
index d5f2d5a..cbfaf68 100644 (file)
--- a/sysdeps/alpha/bits/mathdef.h
+++ b/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)

diff --git a/sysdeps/unix/sysv/linux/alpha/Implies b/sysdeps/unix/sysv/linux/alpha/Implies
index 8d91c80..1616efe 100644 (file)
--- a/sysdeps/unix/sysv/linux/alpha/Implies
+++ b/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

diff --git a/sysdeps/unix/sysv/linux/alpha/Makefile b/sysdeps/unix/sysv/linux/alpha/Makefile
index 37a9214..f64f23f 100644 (file)
--- a/sysdeps/unix/sysv/linux/alpha/Makefile
+++ b/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

diff --git a/sysdeps/unix/sysv/linux/alpha/bits/wordsize.h b/sysdeps/unix/sysv/linux/alpha/bits/wordsize.h
new file mode 100644 (file)
index 0000000..22fc641
--- /dev/null
+++ b/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

diff --git a/sysdeps/unix/sysv/linux/alpha/nldbl-abi.h b/sysdeps/unix/sysv/linux/alpha/nldbl-abi.h
new file mode 100644 (file)
index 0000000..bd985cc
--- /dev/null
+++ b/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