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/*
* linux/arch/m68knommu/kernel/entry.S
*
* Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
* Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>,
* Kenneth Albanowski <kjahds@kjahds.com>,
* Copyright (C) 2000 Lineo Inc. (www.lineo.com)
*
* Based on:
*
* linux/arch/m68k/kernel/entry.S
*
* Copyright (C) 1991, 1992 Linus Torvalds
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file README.legal in the main directory of this archive
* for more details.
*
* Linux/m68k support by Hamish Macdonald
*
* 68060 fixes by Jesper Skov
* ColdFire support by Greg Ungerer (gerg@snapgear.com)
* 5307 fixes by David W. Miller
* linux 2.4 support David McCullough <davidm@snapgear.com>
*/
#include <linux/sys.h>
#include <linux/linkage.h>
#include <asm/errno.h>
#include <asm/setup.h>
#include <asm/segment.h>
#include <asm/asm-offsets.h>
#include <asm/entry.h>
#include <asm/unistd.h>
.text
.globl buserr
.globl trap
.globl ret_from_exception
.globl ret_from_signal
.globl sys_fork
.globl sys_clone
.globl sys_vfork
ENTRY(buserr)
SAVE_ALL
moveq #-1,%d0
movel %d0,%sp@(PT_OFF_ORIG_D0)
movel %sp,%sp@- /* stack frame pointer argument */
jsr buserr_c
addql #4,%sp
jra ret_from_exception
ENTRY(trap)
SAVE_ALL
moveq #-1,%d0
movel %d0,%sp@(PT_OFF_ORIG_D0)
movel %sp,%sp@- /* stack frame pointer argument */
jsr trap_c
addql #4,%sp
jra ret_from_exception
#ifdef TRAP_DBG_INTERRUPT
.globl dbginterrupt
ENTRY(dbginterrupt)
SAVE_ALL
moveq #-1,%d0
movel %d0,%sp@(PT_OFF_ORIG_D0)
movel %sp,%sp@- /* stack frame pointer argument */
jsr dbginterrupt_c
addql #4,%sp
jra ret_from_exception
#endif
ENTRY(reschedule)
/* save top of frame */
pea %sp@
jbsr set_esp0
addql #4,%sp
pea ret_from_exception
jmp schedule
ENTRY(ret_from_fork)
movel %d1,%sp@-
jsr schedule_tail
addql #4,%sp
jra ret_from_exception
ENTRY(sys_fork)
SAVE_SWITCH_STACK
pea %sp@(SWITCH_STACK_SIZE)
jbsr m68k_fork
addql #4,%sp
RESTORE_SWITCH_STACK
rts
ENTRY(sys_vfork)
SAVE_SWITCH_STACK
pea %sp@(SWITCH_STACK_SIZE)
jbsr m68k_vfork
addql #4,%sp
RESTORE_SWITCH_STACK
rts
ENTRY(sys_clone)
SAVE_SWITCH_STACK
pea %sp@(SWITCH_STACK_SIZE)
jbsr m68k_clone
addql #4,%sp
RESTORE_SWITCH_STACK
rts
ENTRY(sys_sigsuspend)
SAVE_SWITCH_STACK
pea %sp@(SWITCH_STACK_SIZE)
jbsr do_sigsuspend
addql #4,%sp
RESTORE_SWITCH_STACK
rts
ENTRY(sys_rt_sigsuspend)
SAVE_SWITCH_STACK
pea %sp@(SWITCH_STACK_SIZE)
jbsr do_rt_sigsuspend
addql #4,%sp
RESTORE_SWITCH_STACK
rts
ENTRY(sys_sigreturn)
SAVE_SWITCH_STACK
jbsr do_sigreturn
RESTORE_SWITCH_STACK
rts
ENTRY(sys_rt_sigreturn)
SAVE_SWITCH_STACK
jbsr do_rt_sigreturn
RESTORE_SWITCH_STACK
rts
ENTRY(ret_from_user_signal)
moveq #__NR_sigreturn,%d0
trap #0
ENTRY(ret_from_user_rt_signal)
movel #__NR_rt_sigreturn,%d0
trap #0
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