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, 42 deletions

diff --git a/sysdeps/ia64/fpu/feholdexcpt.c b/sysdeps/ia64/fpu/feholdexcpt.c
deleted file mode 100644
index 72b8dbbe6f..0000000000
--- a/sysdeps/ia64/fpu/feholdexcpt.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/* Store current floating-point environment and clear exceptions.
-   Copyright (C) 1997-2024 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/>.  */
-
-#include <fenv.h>
-
-int
-__feholdexcept (fenv_t *envp)
-{
-  fenv_t fpsr;
-  /* Save the current state.  */
-  __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr));
-  *envp = fpsr;
-
-  /* Set the trap disable bits.  */
-  fpsr |= FE_ALL_EXCEPT;
-
-  /* And clear the exception bits.  */
-  fpsr &= ~(fenv_t) (FE_ALL_EXCEPT << 13);
-
-  __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr));
-
-  /* Success.  */
-  return 0;
-}
-libm_hidden_def (__feholdexcept)
-weak_alias (__feholdexcept, feholdexcept)
-libm_hidden_weak (feholdexcept)