freebsd-dev/sys/arm64/linux/linux_locore.asm

/*-
 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 *
 * Copyright (C) 2018 Turing Robotic Industries Inc.
 * Copyright (C) 2020 Andrew Turner <andrew@FreeBSD.org>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD$
 */

/*
 * arm64 Linux VDSO implementation.
 */

#include <machine/asm.h>

#include <arm64/linux/linux_syscall.h>

	.data

	.globl linux_platform
linux_platform:
	.asciz "arm64"

	.text

ENTRY(__kernel_rt_sigreturn)
	brk #0 /* LINUXTODO: implement __kernel_rt_sigreturn */
	ret
END(__kernel_rt_sigreturn)

ENTRY(__kernel_gettimeofday)
	ldr	x8, =LINUX_SYS_gettimeofday
	svc	#0
	ret
END(__kernel_gettimeofday)

ENTRY(__kernel_clock_gettime)
	ldr	x8, =LINUX_SYS_linux_clock_gettime
	svc	#0
	ret
END(__kernel_clock_gettime)

ENTRY(__kernel_clock_getres)
	brk #0 /* LINUXTODO: implement __kernel_clock_getres */
	ret
END(__kernel_clock_getres)