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
|
# setjmp/longjmp for mt.
#
# The jmpbuf looks like this:
#
# Register jmpbuf offset
# R0 --- --
# R1 0x4 4
# R2 0x8 8
# R3 0xc 12
# R4 0x10 16
# R5 0x14 20
# R6 0x18 24
# R7 0x1c 28
# R8 0x20 32
# R9 ---- --
# R10 ---- --
# R11 0x2c 44
# R12 0x30 48
# R13 0x34 52
# R14 0x38 56
# R15 0x3c 60
#
# R1 contains the pointer to jmpbuf
.text
.global setjmp
.type setjmp ,@function
setjmp:
stw r1, r1, #4
or r0, r0, r0
stw r2, r1, #8
or r0, r0, r0
stw r3, r1, #12
or r0, r0, r0
stw r4, r1, #16
or r0, r0, r0
stw r5, r1, #20
or r0, r0, r0
stw r6, r1, #24
or r0, r0, r0
stw r7, r1, #28
or r0, r0, r0
stw r8, r1, #32
or r0, r0, r0
stw r11, r1, #44
or r0, r0, r0
stw r12, r1, #48
or r0, r0, r0
stw r13, r1, #52
or r0, r0, r0
stw r14, r1, #56
or r0, r0, r0
stw r15, r1, #60
jal r0, r14
addi r11, r0, #0
.Lend1:
.size setjmp,.Lend1-setjmp
.global longjmp
.type longjmp,@function
longjmp:
or r9, r1, r1
or r11, r2, r2
ldw r1, r1, #4
or r0, r0, r0
ldw r2, r1, #8
or r0, r0, r0
ldw r3, r1, #12
or r0, r0, r0
ldw r4, r1, #16
or r0, r0, r0
ldw r5, r1, #20
or r0, r0, r0
ldw r6, r1, #24
or r0, r0, r0
ldw r7, r1, #28
or r0, r0, r0
ldw r8, r1, #32
or r0, r0, r0
ldw r12, r1, #48
or r0, r0, r0
ldw r13, r1, #52
or r0, r0, r0
ldw r14, r1, #56
or r0, r0, r0
ldw r15, r1, #60
brne r0, r11, .L01
or r0, r0, r0
addi r11, r0, #1
.L01:
jal r0, r14
or r0, r0, r0
.Lend2:
.size longjmp,.Lend2-longjmp2
|
