5c9ea56c98
A version of each of the MD files by necessity exists for each CPU architecture supported by the Linuxolator. Clean these up so that new architectures do not inherit whitespace issues. Clean up shared Linuxolator files while here. Sponsored by: Turing Robotic Industries Inc.
127 lines
3.1 KiB
ArmAsm
127 lines
3.1 KiB
ArmAsm
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
|
*
|
|
* Copyright (c) 2006,2007 Konstantin Belousov
|
|
* All rights reserved.
|
|
*
|
|
* 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" /* system definitions */
|
|
#include <machine/asmacros.h> /* miscellaneous asm macros */
|
|
|
|
#include "assym.s"
|
|
|
|
futex_fault_decx:
|
|
movl PCPU(CURPCB),%ecx
|
|
futex_fault:
|
|
movl $0,PCB_ONFAULT(%ecx)
|
|
movl $-EFAULT,%eax
|
|
ret
|
|
|
|
ENTRY(futex_xchgl)
|
|
movl PCPU(CURPCB),%ecx
|
|
movl $futex_fault,PCB_ONFAULT(%ecx)
|
|
movl 4(%esp),%eax
|
|
movl 8(%esp),%edx
|
|
cmpl $VM_MAXUSER_ADDRESS-4,%edx
|
|
ja futex_fault
|
|
xchgl %eax,(%edx)
|
|
movl 12(%esp),%edx
|
|
movl %eax,(%edx)
|
|
xorl %eax,%eax
|
|
movl %eax,PCB_ONFAULT(%ecx)
|
|
ret
|
|
|
|
ENTRY(futex_addl)
|
|
movl PCPU(CURPCB),%ecx
|
|
movl $futex_fault,PCB_ONFAULT(%ecx)
|
|
movl 4(%esp),%eax
|
|
movl 8(%esp),%edx
|
|
cmpl $VM_MAXUSER_ADDRESS-4,%edx
|
|
ja futex_fault
|
|
#ifdef SMP
|
|
lock
|
|
#endif
|
|
xaddl %eax,(%edx)
|
|
movl 12(%esp),%edx
|
|
movl %eax,(%edx)
|
|
xorl %eax,%eax
|
|
movl %eax,PCB_ONFAULT(%ecx)
|
|
ret
|
|
|
|
ENTRY(futex_orl)
|
|
movl PCPU(CURPCB),%ecx
|
|
movl $futex_fault_decx,PCB_ONFAULT(%ecx)
|
|
movl 8(%esp),%edx
|
|
cmpl $VM_MAXUSER_ADDRESS-4,%edx
|
|
ja futex_fault
|
|
movl (%edx),%eax
|
|
1: movl %eax,%ecx
|
|
orl 4(%esp),%ecx
|
|
#ifdef SMP
|
|
lock
|
|
#endif
|
|
cmpxchgl %ecx,(%edx)
|
|
jnz 1b
|
|
futex_tail:
|
|
movl 12(%esp),%edx
|
|
movl %eax,(%edx)
|
|
xorl %eax,%eax
|
|
movl PCPU(CURPCB),%ecx
|
|
movl %eax,PCB_ONFAULT(%ecx)
|
|
ret
|
|
|
|
ENTRY(futex_andl)
|
|
movl PCPU(CURPCB),%ecx
|
|
movl $futex_fault_decx,PCB_ONFAULT(%ecx)
|
|
movl 8(%esp),%edx
|
|
cmpl $VM_MAXUSER_ADDRESS-4,%edx
|
|
ja futex_fault
|
|
movl (%edx),%eax
|
|
1: movl %eax,%ecx
|
|
andl 4(%esp),%ecx
|
|
#ifdef SMP
|
|
lock
|
|
#endif
|
|
cmpxchgl %ecx,(%edx)
|
|
jnz 1b
|
|
jmp futex_tail
|
|
|
|
ENTRY(futex_xorl)
|
|
movl PCPU(CURPCB),%ecx
|
|
movl $futex_fault_decx,PCB_ONFAULT(%ecx)
|
|
movl 8(%esp),%edx
|
|
cmpl $VM_MAXUSER_ADDRESS-4,%edx
|
|
ja futex_fault
|
|
movl (%edx),%eax
|
|
1: movl %eax,%ecx
|
|
xorl 4(%esp),%ecx
|
|
#ifdef SMP
|
|
lock
|
|
#endif
|
|
cmpxchgl %ecx,(%edx)
|
|
jnz 1b
|
|
jmp futex_tail
|