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
|
/*-
* Copyright (c) 2015-2016 Ruslan Bukin <br@bsdpad.com>
* All rights reserved.
*
* Portions of this software were developed by SRI International and the
* University of Cambridge Computer Laboratory under DARPA/AFRL contract
* FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
*
* Portions of this software were developed by the University of Cambridge
* Computer Laboratory as part of the CTSRD Project, with support from the
* UK Higher Education Innovation Fund (HEIF).
*
* 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.
*/
#include <machine/asm.h>
#include <machine/setjmp.h>
ENTRY(_setjmp)
/* Store the magic value and stack pointer */
ld t0, .Lmagic
sd t0, (0 * 8)(a0)
sd sp, (1 * 8)(a0)
addi a0, a0, (2 * 8)
/* Store the general purpose registers and ra */
sd s0, (0 * 8)(a0)
sd s1, (1 * 8)(a0)
sd s2, (2 * 8)(a0)
sd s3, (3 * 8)(a0)
sd s4, (4 * 8)(a0)
sd s5, (5 * 8)(a0)
sd s6, (6 * 8)(a0)
sd s7, (7 * 8)(a0)
sd s8, (8 * 8)(a0)
sd s9, (9 * 8)(a0)
sd s10, (10 * 8)(a0)
sd s11, (11 * 8)(a0)
sd ra, (12 * 8)(a0)
addi a0, a0, (13 * 8)
#if !defined(_STANDALONE) && defined(__riscv_float_abi_double)
/* Store the fpe registers */
fsd fs0, (0 * 8)(a0)
fsd fs1, (1 * 8)(a0)
fsd fs2, (2 * 8)(a0)
fsd fs3, (3 * 8)(a0)
fsd fs4, (4 * 8)(a0)
fsd fs5, (5 * 8)(a0)
fsd fs6, (6 * 8)(a0)
fsd fs7, (7 * 8)(a0)
fsd fs8, (8 * 8)(a0)
fsd fs9, (9 * 8)(a0)
fsd fs10, (10 * 8)(a0)
fsd fs11, (11 * 8)(a0)
addi a0, a0, (12 * 8)
#endif
/* Return value */
li a0, 0
ret
.align 3
.Lmagic:
.quad _JB_MAGIC__SETJMP
END(_setjmp)
ENTRY(_longjmp)
/* Check the magic value */
ld t0, 0(a0)
ld t1, .Lmagic
bne t0, t1, botch
/* Restore the stack pointer */
ld t0, 8(a0)
mv sp, t0
addi a0, a0, (2 * 8)
/* Restore the general purpose registers and ra */
ld s0, (0 * 8)(a0)
ld s1, (1 * 8)(a0)
ld s2, (2 * 8)(a0)
ld s3, (3 * 8)(a0)
ld s4, (4 * 8)(a0)
ld s5, (5 * 8)(a0)
ld s6, (6 * 8)(a0)
ld s7, (7 * 8)(a0)
ld s8, (8 * 8)(a0)
ld s9, (9 * 8)(a0)
ld s10, (10 * 8)(a0)
ld s11, (11 * 8)(a0)
ld ra, (12 * 8)(a0)
addi a0, a0, (13 * 8)
#if !defined(_STANDALONE) && defined(__riscv_float_abi_double)
/* Restore the fpe registers */
fld fs0, (0 * 8)(a0)
fld fs1, (1 * 8)(a0)
fld fs2, (2 * 8)(a0)
fld fs3, (3 * 8)(a0)
fld fs4, (4 * 8)(a0)
fld fs5, (5 * 8)(a0)
fld fs6, (6 * 8)(a0)
fld fs7, (7 * 8)(a0)
fld fs8, (8 * 8)(a0)
fld fs9, (9 * 8)(a0)
fld fs10, (10 * 8)(a0)
fld fs11, (11 * 8)(a0)
addi a0, a0, (12 * 8)
#endif
/* Load the return value */
mv a0, a1
bnez a1, 1f
li a0, 1
1:
ret
botch:
#ifdef _STANDALONE
j botch
#else
call _C_LABEL(longjmperror)
call _C_LABEL(abort)
#endif
END(_longjmp)
|