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/* Copyright (C) 2020 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
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#ifdef USE_MTAG
.arch armv8.5-a
.arch_extension memtag
/* NB, only supported on variants with 64-bit pointers. */
#define ptr x0
#define xset x1
ENTRY(__libc_mtag_new_tag)
// Guarantee that the new tag is not the same as now.
gmi xset, ptr, xzr
irg ptr, ptr, xset
ret
END (__libc_mtag_new_tag)
#endif /* USE_MTAG */
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