FreeBSD/Linux Kernel Cross Reference
sys/arm/arm/vectors.S
1 /* $NetBSD: vectors.S,v 1.4 2002/08/17 16:36:32 thorpej Exp $ */
2
3 /*-
4 * Copyright (C) 1994-1997 Mark Brinicombe
5 * Copyright (C) 1994 Brini
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by Brini.
19 * 4. The name of Brini may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL BRINI BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 *
33 */
34
35 #include <machine/asm.h>
36 __FBSDID("$FreeBSD$");
37
38 /*
39 * These are the exception vectors copied down to page 0.
40 *
41 * Note that FIQs are special; rather than using a level of
42 * indirection, we actually copy the FIQ code down into the
43 * vector page.
44 */
45
46 .text
47 .align 0
48 .global _C_LABEL(page0), _C_LABEL(page0_data), _C_LABEL(page0_end)
49 .global _C_LABEL(fiqvector)
50
51 _C_LABEL(page0):
52 ldr pc, .Lreset_target
53 ldr pc, .Lundefined_target
54 ldr pc, .Lswi_target
55 ldr pc, .Lprefetch_abort_target
56 ldr pc, .Ldata_abort_target
57 ldr pc, .Laddress_exception_target
58 ldr pc, .Lirq_target
59 #ifdef __ARM_FIQ_INDIRECT
60 ldr pc, .Lfiq_target
61 #else
62 .Lfiqvector:
63 .set _C_LABEL(fiqvector), . - _C_LABEL(page0)
64 subs pc, lr, #4
65 .org .Lfiqvector + 0x100
66 #endif
67
68 _C_LABEL(page0_data):
69 .Lreset_target:
70 .word reset_entry
71
72 .Lundefined_target:
73 .word undefined_entry
74
75 .Lswi_target:
76 .word swi_entry
77
78 .Lprefetch_abort_target:
79 .word prefetch_abort_entry
80
81 .Ldata_abort_target:
82 .word data_abort_entry
83
84 .Laddress_exception_target:
85 .word address_exception_entry
86
87 .Lirq_target:
88 .word irq_entry
89
90 #ifdef __ARM_FIQ_INDIRECT
91 .Lfiq_target:
92 .word _C_LABEL(fiqvector)
93 #else
94 .word 0 /* pad it out */
95 #endif
96 _C_LABEL(page0_end):
97
98 #ifdef __ARM_FIQ_INDIRECT
99 .data
100 .align 0
101 _C_LABEL(fiqvector):
102 subs pc, lr, #4
103 .org _C_LABEL(fiqvector) + 0x100
104 #endif
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