Remove ia64-linux-gnu

Linux 6.7 removed ia64 from the official tree [1], following the general
principle that a glibc port needs upstream support for the architecture
in all the components it depends on (binutils, GCC, and the Linux
kernel).

Apart from the removal of sysdeps/ia64 and sysdeps/unix/sysv/linux/ia64,
there are updates to various comments referencing ia64 for which removal
of those references seemed appropriate. The configuration is removed
from README and build-many-glibcs.py.

The CONTRIBUTED-BY, elf/elf.h, manual/contrib.texi (the porting
mention), *.po files, config.guess, and longlong.h are not changed.

For Linux it allows cleanup some clone2 support on multiple files.

The following bug can be closed as WONTFIX: BZ 22634 [2], BZ 14250 [3],
BZ 21634 [4], BZ 10163 [5], BZ 16401 [6], and BZ 11585 [7].

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=43ff221426d33db909f7159fdf620c3b052e2d1c
[2] https://sourceware.org/bugzilla/show_bug.cgi?id=22634
[3] https://sourceware.org/bugzilla/show_bug.cgi?id=14250
[4] https://sourceware.org/bugzilla/show_bug.cgi?id=21634
[5] https://sourceware.org/bugzilla/show_bug.cgi?id=10163
[6] https://sourceware.org/bugzilla/show_bug.cgi?id=16401
[7] https://sourceware.org/bugzilla/show_bug.cgi?id=11585
Reviewed-by: Carlos O'Donell <carlos@redhat.com>

1 files changed, 0 insertions, 36 deletions

diff --git a/sysdeps/unix/sysv/linux/ia64/bits/sigstack.h b/sysdeps/unix/sysv/linux/ia64/bits/sigstack.h
deleted file mode 100644
index d4d55933cd..0000000000
--- a/sysdeps/unix/sysv/linux/ia64/bits/sigstack.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/* sigstack, sigaltstack definitions.
-   Copyright (C) 1998-2024 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, see
-   <https://www.gnu.org/licenses/>.  */
-
-#ifndef _BITS_SIGSTACK_H
-#define _BITS_SIGSTACK_H 1
-
-#if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
-# error "Never include this file directly.  Use <signal.h> instead"
-#endif
-
-/* Minimum stack size for a signal handler.
-
-   Yes, this should be 131072 but the constant got defined incorrectly
-   in the kernel and we have to live with it.  Users should in any case
-   use SIGSTKSZ as the size user-supplied buffers should have.  */
-#define MINSIGSTKSZ	131027
-
-/* System default stack size.  */
-#define SIGSTKSZ	262144
-
-#endif /* bits/sigstack.h */