| /* |
| * 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/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_INT |
| GET_CURRENT(%d0) |
| movel %sp,%sp@- /* stack frame pointer argument */ |
| jsr buserr_c |
| addql #4,%sp |
| jra ret_from_exception |
| |
| ENTRY(trap) |
| SAVE_ALL_INT |
| GET_CURRENT(%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_INT |
| GET_CURRENT(%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_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 |
| |