[thirdparty/glibc.git] / sysdeps / aarch64 / __mtag_address_get_tag.S

/* Copyright (C) 2020-2021 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
#define ptr x0

	.arch armv8.5-a
	.arch_extension memtag

ENTRY (__libc_mtag_address_get_tag)

	ldg	ptr, [ptr]
	ret
END (__libc_mtag_address_get_tag)
#endif /* USE_MTAG */
Commit	Line	Data
2b778ceb	1	/* Copyright (C) 2020-2021 Free Software Foundation, Inc.
d27f0e5d RE	2
	3	This file is part of the GNU C Library.
	4
	5	The GNU C Library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	The GNU C Library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
	16	License along with the GNU C Library. If not, see
	17	<http://www.gnu.org/licenses/>. */
	18
	19	#include <sysdep.h>
	20
	21	#ifdef USE_MTAG
	22	#define ptr x0
	23
	24	.arch armv8.5-a
	25	.arch_extension memtag
	26
	27	ENTRY (__libc_mtag_address_get_tag)
	28
	29	ldg ptr, [ptr]
	30	ret
	31	END (__libc_mtag_address_get_tag)
	32	#endif /* USE_MTAG */