freebsd-skq/sys/arm64/linux/linux_support.s
Ed Maste 1fbaf06eba Introduce arm64 linuxulator stubs
This provides stub implementations of arm64 Linux vdso and machdep,
ptrace, and futex sufficient for executing an arm64 Linux 'hello world'
binary.

Reviewed by:	andrew
Sponsored by:	Turing Robotic Industries
Differential Revision:	https://reviews.freebsd.org/D15832
2018-06-18 19:34:34 +00:00

58 lines
1.6 KiB
ArmAsm

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (C) 2018 Turing Robotic Industries Inc.
*
* 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.
*
* $FreeBSD$
*/
#include "linux_assym.h"
#include <machine/asm.h>
#include "assym.inc"
/*
* LINUXTODO: implement futex_*
*/
ENTRY(futex_xchgl)
brk #0
ret
ENTRY(futex_addl)
brk #0
ret
ENTRY(futex_orl)
brk #0
ret
ENTRY(futex_andl)
brk #0
ret
ENTRY(futex_xorl)
brk #0
ret