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
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
#!/usr/bin/env perl
print <<'___';
.text
.set noat
.globl OPENSSL_cpuid_setup
.ent OPENSSL_cpuid_setup
OPENSSL_cpuid_setup:
.frame $30,0,$26
.prologue 0
ret ($26)
.end OPENSSL_cpuid_setup
.globl OPENSSL_wipe_cpu
.ent OPENSSL_wipe_cpu
OPENSSL_wipe_cpu:
.frame $30,0,$26
.prologue 0
clr $1
clr $2
clr $3
clr $4
clr $5
clr $6
clr $7
clr $8
clr $16
clr $17
clr $18
clr $19
clr $20
clr $21
clr $22
clr $23
clr $24
clr $25
clr $27
clr $at
clr $29
fclr $f0
fclr $f1
fclr $f10
fclr $f11
fclr $f12
fclr $f13
fclr $f14
fclr $f15
fclr $f16
fclr $f17
fclr $f18
fclr $f19
fclr $f20
fclr $f21
fclr $f22
fclr $f23
fclr $f24
fclr $f25
fclr $f26
fclr $f27
fclr $f28
fclr $f29
fclr $f30
mov $sp,$0
ret ($26)
.end OPENSSL_wipe_cpu
.globl OPENSSL_atomic_add
.ent OPENSSL_atomic_add
OPENSSL_atomic_add:
.frame $30,0,$26
.prologue 0
1: ldl_l $0,0($16)
addl $0,$17,$1
stl_c $1,0($16)
beq $1,1b
addl $0,$17,$0
ret ($26)
.end OPENSSL_atomic_add
.globl OPENSSL_rdtsc
.ent OPENSSL_rdtsc
OPENSSL_rdtsc:
.frame $30,0,$26
.prologue 0
rpcc $0
ret ($26)
.end OPENSSL_rdtsc
.globl OPENSSL_cleanse
.ent OPENSSL_cleanse
OPENSSL_cleanse:
.frame $30,0,$26
.prologue 0
beq $17,.Ldone
and $16,7,$0
bic $17,7,$at
beq $at,.Little
beq $0,.Laligned
.Little:
subq $0,8,$0
ldq_u $1,0($16)
mov $16,$2
.Lalign:
mskbl $1,$16,$1
lda $16,1($16)
subq $17,1,$17
addq $0,1,$0
beq $17,.Lout
bne $0,.Lalign
.Lout: stq_u $1,0($2)
beq $17,.Ldone
bic $17,7,$at
beq $at,.Little
.Laligned:
stq $31,0($16)
subq $17,8,$17
lda $16,8($16)
bic $17,7,$at
bne $at,.Laligned
bne $17,.Little
.Ldone: ret ($26)
.end OPENSSL_cleanse
___
{
my ($out,$cnt,$max)=("\$16","\$17","\$18");
my ($tick,$lasttick)=("\$19","\$20");
my ($diff,$lastdiff)=("\$21","\$22");
my ($v0,$ra,$sp,$zero)=("\$0","\$26","\$30","\$31");
print <<___;
.globl OPENSSL_instrument_bus
.ent OPENSSL_instrument_bus
OPENSSL_instrument_bus:
.frame $sp,0,$ra
.prologue 0
mov $cnt,$v0
rpcc $lasttick
mov 0,$diff
ecb ($out)
ldl_l $tick,0($out)
addl $diff,$tick,$tick
mov $tick,$diff
stl_c $tick,0($out)
stl $diff,0($out)
.Loop: rpcc $tick
subq $tick,$lasttick,$diff
mov $tick,$lasttick
ecb ($out)
ldl_l $tick,0($out)
addl $diff,$tick,$tick
mov $tick,$diff
stl_c $tick,0($out)
stl $diff,0($out)
subl $cnt,1,$cnt
lda $out,4($out)
bne $cnt,.Loop
ret ($ra)
.end OPENSSL_instrument_bus
.globl OPENSSL_instrument_bus2
.ent OPENSSL_instrument_bus2
OPENSSL_instrument_bus2:
.frame $sp,0,$ra
.prologue 0
mov $cnt,$v0
rpcc $lasttick
mov 0,$diff
ecb ($out)
ldl_l $tick,0($out)
addl $diff,$tick,$tick
mov $tick,$diff
stl_c $tick,0($out)
stl $diff,0($out)
rpcc $tick
subq $tick,$lasttick,$diff
mov $tick,$lasttick
mov $diff,$lastdiff
.Loop2:
ecb ($out)
ldl_l $tick,0($out)
addl $diff,$tick,$tick
mov $tick,$diff
stl_c $tick,0($out)
stl $diff,0($out)
subl $max,1,$max
beq $max,.Ldone2
rpcc $tick
subq $tick,$lasttick,$diff
mov $tick,$lasttick
subq $lastdiff,$diff,$tick
mov $diff,$lastdiff
cmovne $tick,1,$tick
subl $cnt,$tick,$cnt
s4addq $tick,$out,$out
bne $cnt,.Loop2
.Ldone2:
subl $v0,$cnt,$v0
ret ($ra)
.end OPENSSL_instrument_bus2
___
}
|