diff options
Diffstat (limited to 'arch/m68k/kernel/entry_no.S')
-rw-r--r-- | arch/m68k/kernel/entry_no.S | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/arch/m68k/kernel/entry_no.S b/arch/m68k/kernel/entry_no.S new file mode 100644 index 00000000000..5f0f6b598b5 --- /dev/null +++ b/arch/m68k/kernel/entry_no.S | |||
@@ -0,0 +1,133 @@ | |||
1 | /* | ||
2 | * linux/arch/m68knommu/kernel/entry.S | ||
3 | * | ||
4 | * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) | ||
5 | * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, | ||
6 | * Kenneth Albanowski <kjahds@kjahds.com>, | ||
7 | * Copyright (C) 2000 Lineo Inc. (www.lineo.com) | ||
8 | * | ||
9 | * Based on: | ||
10 | * | ||
11 | * linux/arch/m68k/kernel/entry.S | ||
12 | * | ||
13 | * Copyright (C) 1991, 1992 Linus Torvalds | ||
14 | * | ||
15 | * This file is subject to the terms and conditions of the GNU General Public | ||
16 | * License. See the file README.legal in the main directory of this archive | ||
17 | * for more details. | ||
18 | * | ||
19 | * Linux/m68k support by Hamish Macdonald | ||
20 | * | ||
21 | * 68060 fixes by Jesper Skov | ||
22 | * ColdFire support by Greg Ungerer (gerg@snapgear.com) | ||
23 | * 5307 fixes by David W. Miller | ||
24 | * linux 2.4 support David McCullough <davidm@snapgear.com> | ||
25 | */ | ||
26 | |||
27 | #include <linux/linkage.h> | ||
28 | #include <asm/errno.h> | ||
29 | #include <asm/setup.h> | ||
30 | #include <asm/segment.h> | ||
31 | #include <asm/asm-offsets.h> | ||
32 | #include <asm/entry.h> | ||
33 | #include <asm/unistd.h> | ||
34 | |||
35 | .text | ||
36 | |||
37 | .globl buserr | ||
38 | .globl trap | ||
39 | .globl ret_from_exception | ||
40 | .globl ret_from_signal | ||
41 | .globl sys_fork | ||
42 | .globl sys_clone | ||
43 | .globl sys_vfork | ||
44 | |||
45 | ENTRY(buserr) | ||
46 | SAVE_ALL | ||
47 | moveq #-1,%d0 | ||
48 | movel %d0,%sp@(PT_OFF_ORIG_D0) | ||
49 | movel %sp,%sp@- /* stack frame pointer argument */ | ||
50 | jsr buserr_c | ||
51 | addql #4,%sp | ||
52 | jra ret_from_exception | ||
53 | |||
54 | ENTRY(trap) | ||
55 | SAVE_ALL | ||
56 | moveq #-1,%d0 | ||
57 | movel %d0,%sp@(PT_OFF_ORIG_D0) | ||
58 | movel %sp,%sp@- /* stack frame pointer argument */ | ||
59 | jsr trap_c | ||
60 | addql #4,%sp | ||
61 | jra ret_from_exception | ||
62 | |||
63 | #ifdef TRAP_DBG_INTERRUPT | ||
64 | |||
65 | .globl dbginterrupt | ||
66 | ENTRY(dbginterrupt) | ||
67 | SAVE_ALL | ||
68 | moveq #-1,%d0 | ||
69 | movel %d0,%sp@(PT_OFF_ORIG_D0) | ||
70 | movel %sp,%sp@- /* stack frame pointer argument */ | ||
71 | jsr dbginterrupt_c | ||
72 | addql #4,%sp | ||
73 | jra ret_from_exception | ||
74 | #endif | ||
75 | |||
76 | ENTRY(reschedule) | ||
77 | /* save top of frame */ | ||
78 | pea %sp@ | ||
79 | jbsr set_esp0 | ||
80 | addql #4,%sp | ||
81 | pea ret_from_exception | ||
82 | jmp schedule | ||
83 | |||
84 | ENTRY(ret_from_fork) | ||
85 | movel %d1,%sp@- | ||
86 | jsr schedule_tail | ||
87 | addql #4,%sp | ||
88 | jra ret_from_exception | ||
89 | |||
90 | ENTRY(sys_fork) | ||
91 | SAVE_SWITCH_STACK | ||
92 | pea %sp@(SWITCH_STACK_SIZE) | ||
93 | jbsr m68k_fork | ||
94 | addql #4,%sp | ||
95 | RESTORE_SWITCH_STACK | ||
96 | rts | ||
97 | |||
98 | ENTRY(sys_vfork) | ||
99 | SAVE_SWITCH_STACK | ||
100 | pea %sp@(SWITCH_STACK_SIZE) | ||
101 | jbsr m68k_vfork | ||
102 | addql #4,%sp | ||
103 | RESTORE_SWITCH_STACK | ||
104 | rts | ||
105 | |||
106 | ENTRY(sys_clone) | ||
107 | SAVE_SWITCH_STACK | ||
108 | pea %sp@(SWITCH_STACK_SIZE) | ||
109 | jbsr m68k_clone | ||
110 | addql #4,%sp | ||
111 | RESTORE_SWITCH_STACK | ||
112 | rts | ||
113 | |||
114 | ENTRY(sys_sigreturn) | ||
115 | SAVE_SWITCH_STACK | ||
116 | jbsr do_sigreturn | ||
117 | RESTORE_SWITCH_STACK | ||
118 | rts | ||
119 | |||
120 | ENTRY(sys_rt_sigreturn) | ||
121 | SAVE_SWITCH_STACK | ||
122 | jbsr do_rt_sigreturn | ||
123 | RESTORE_SWITCH_STACK | ||
124 | rts | ||
125 | |||
126 | ENTRY(ret_from_user_signal) | ||
127 | moveq #__NR_sigreturn,%d0 | ||
128 | trap #0 | ||
129 | |||
130 | ENTRY(ret_from_user_rt_signal) | ||
131 | movel #__NR_rt_sigreturn,%d0 | ||
132 | trap #0 | ||
133 | |||