1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
/* $OpenBSD: locore.S,v 1.19 2017/08/08 21:52:41 drahn Exp $ */
/*-
* Copyright (c) 2012-2014 Andrew Turner
* 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: head/sys/arm64/arm64/locore.S 282867 2015-05-13 18:57:03Z zbb $
*/
#include "assym.h"
#include <sys/syscall.h>
#include <machine/asm.h>
#include <machine/param.h>
#define VECT_EMPTY \
.align 7; \
1: b 1b
.align 11
.globl hyp_vectors
hyp_vectors:
VECT_EMPTY /* Synchronous EL2t */
VECT_EMPTY /* IRQ EL2t */
VECT_EMPTY /* FIQ EL2t */
VECT_EMPTY /* Error EL2t */
VECT_EMPTY /* Synchronous EL2h */
VECT_EMPTY /* IRQ EL2h */
VECT_EMPTY /* FIQ EL2h */
VECT_EMPTY /* Error EL2h */
VECT_EMPTY /* Synchronous 64-bit EL1 */
VECT_EMPTY /* IRQ 64-bit EL1 */
VECT_EMPTY /* FIQ 64-bit EL1 */
VECT_EMPTY /* Error 64-bit EL1 */
VECT_EMPTY /* Synchronous 32-bit EL1 */
VECT_EMPTY /* IRQ 32-bit EL1 */
VECT_EMPTY /* FIQ 32-bit EL1 */
VECT_EMPTY /* Error 32-bit EL1 */
.align 3
.globl abort
abort:
b abort
.data
.global _C_LABEL(esym)
_C_LABEL(esym): .xword _C_LABEL(end)
data_align_pad:
.space 32
.align 12 /* 4KiB aligned */
/*
* 3 initial tables (in the following order):
* L2 for kernel (High addresses)
* L1 for kernel
* L1 for user (Low addresses)
*/
.globl pagetable
pagetable:
.space PAGE_SIZE * 2 // allocate 2 pages for pmapvp2
pagetable_l1_ttbr1:
.space PAGE_SIZE * 2 // allocate 2 pages for pmapvp1
pagetable_l1_ttbr0:
.space PAGE_SIZE * 2 // allocate 2 pages, reused later in pmap
pagetable_l0_ttbr0:
.space PAGE_SIZE
.globl pagetable_end
pagetable_end:
.bss
.align 4
.globl initstack
initstack:
.space USPACE
.globl initstack_end
initstack_end:
.text
ENTRY(sigcode)
sub sp, sp, #17 * 32
mov x3, sp
stp q0, q1, [x3], #32
stp q2, q3, [x3], #32
stp q4, q5, [x3], #32
stp q6, q7, [x3], #32
stp q8, q9, [x3], #32
stp q10, q11, [x3], #32
stp q12, q13, [x3], #32
stp q14, q15, [x3], #32
stp q16, q17, [x3], #32
stp q18, q19, [x3], #32
stp q20, q21, [x3], #32
stp q22, q23, [x3], #32
stp q24, q25, [x3], #32
stp q26, q27, [x3], #32
stp q28, q29, [x3], #32
stp q30, q31, [x3], #32
mrs x4, fpsr
mrs x5, fpcr
stp w4, w5, [x3]
blr lr
mov x3, sp
ldp q0, q1, [x3], #32
ldp q2, q3, [x3], #32
ldp q4, q5, [x3], #32
ldp q6, q7, [x3], #32
ldp q8, q9, [x3], #32
ldp q10, q11, [x3], #32
ldp q12, q13, [x3], #32
ldp q14, q15, [x3], #32
ldp q16, q17, [x3], #32
ldp q18, q19, [x3], #32
ldp q20, q21, [x3], #32
ldp q22, q23, [x3], #32
ldp q24, q25, [x3], #32
ldp q26, q27, [x3], #32
ldp q28, q29, [x3], #32
ldp q30, q31, [x3], #32
ldp w4, w5, [x3]
mrs x4, fpsr
mrs x5, fpcr
add sp, sp, #17 * 32
mov x0, sp
add x0, x0, #SF_SC
1:
mov x8, #SYS_sigreturn
svc 0
.globl _C_LABEL(sigcoderet)
_C_LABEL(sigcoderet):
/* sigreturn failed, exit */
mov x8, #SYS_exit
svc 0
b 1b
END(sigcode)
/* This may be copied to the stack, keep it 16-byte aligned */
.align 3
.global _C_LABEL(esigcode)
_C_LABEL(esigcode):
.globl sigfill
sigfill:
.word 0xa000f7f0 /* FIXME: illegal on all cpus? */
esigfill:
.data
.globl sigfillsiz
sigfillsiz:
.word esigfill - sigfill
.text
|
