aboutsummaryrefslogtreecommitdiffstats
path: root/crypto/pariscid.pl
blob: 477ec9b87dd7d36ccb190001ec5bd4d00d9d6b26 (plain) (blame)
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
217
218
219
220
221
222
223
224
#!/usr/bin/env perl

$flavour = shift;
$output = shift;
open STDOUT,">$output";

if ($flavour =~ /64/) {
	$LEVEL		="2.0W";
	$SIZE_T		=8;
	$ST		="std";
} else {
	$LEVEL		="1.1";
	$SIZE_T		=4;
	$ST		="stw";
}

$rp="%r2";
$sp="%r30";
$rv="%r28";

$code=<<___;
	.LEVEL	$LEVEL
	.SPACE	\$TEXT\$
	.SUBSPA	\$CODE\$,QUAD=0,ALIGN=8,ACCESS=0x2C,CODE_ONLY

	.EXPORT	OPENSSL_cpuid_setup,ENTRY
	.ALIGN	8
OPENSSL_cpuid_setup
	.PROC
	.CALLINFO	NO_CALLS
	.ENTRY
	bv	($rp)
	.EXIT
	nop
	.PROCEND

	.EXPORT	OPENSSL_rdtsc,ENTRY
	.ALIGN	8
OPENSSL_rdtsc
	.PROC
	.CALLINFO	NO_CALLS
	.ENTRY
	mfctl	%cr16,$rv
	bv	($rp)
	.EXIT
	nop
	.PROCEND

	.EXPORT	OPENSSL_wipe_cpu,ENTRY
	.ALIGN	8
OPENSSL_wipe_cpu
	.PROC
	.CALLINFO	NO_CALLS
	.ENTRY
	xor		%r0,%r0,%r1
	fcpy,dbl	%fr0,%fr4
	xor		%r0,%r0,%r19
	fcpy,dbl	%fr0,%fr5
	xor		%r0,%r0,%r20
	fcpy,dbl	%fr0,%fr6
	xor		%r0,%r0,%r21
	fcpy,dbl	%fr0,%fr7
	xor		%r0,%r0,%r22
	fcpy,dbl	%fr0,%fr8
	xor		%r0,%r0,%r23
	fcpy,dbl	%fr0,%fr9
	xor		%r0,%r0,%r24
	fcpy,dbl	%fr0,%fr10
	xor		%r0,%r0,%r25
	fcpy,dbl	%fr0,%fr11
	xor		%r0,%r0,%r26
	fcpy,dbl	%fr0,%fr22
	xor		%r0,%r0,%r29
	fcpy,dbl	%fr0,%fr23
	xor		%r0,%r0,%r31
	fcpy,dbl	%fr0,%fr24
	fcpy,dbl	%fr0,%fr25
	fcpy,dbl	%fr0,%fr26
	fcpy,dbl	%fr0,%fr27
	fcpy,dbl	%fr0,%fr28
	fcpy,dbl	%fr0,%fr29
	fcpy,dbl	%fr0,%fr30
	fcpy,dbl	%fr0,%fr31
	bv		($rp)
	.EXIT
	ldo		0($sp),$rv
	.PROCEND
___
{
my $inp="%r26";
my $len="%r25";

$code.=<<___;
	.EXPORT	OPENSSL_cleanse,ENTRY,ARGW0=GR,ARGW1=GR
	.ALIGN	8
OPENSSL_cleanse
	.PROC
	.CALLINFO	NO_CALLS
	.ENTRY
	cmpib,*=	0,$len,Ldone
	nop
	cmpib,*>>=	15,$len,Little
	ldi		$SIZE_T-1,%r1

Lalign
	and,*<>		$inp,%r1,%r28
	b,n		Laligned
	stb		%r0,0($inp)
	ldo		-1($len),$len
	b		Lalign
	ldo		1($inp),$inp

Laligned
	andcm		$len,%r1,%r28
Lot
	$ST		%r0,0($inp)
	addib,*<>	-$SIZE_T,%r28,Lot
	ldo		$SIZE_T($inp),$inp

	and,*<>		$len,%r1,$len
	b,n		Ldone
Little
	stb		%r0,0($inp)
	addib,*<>	-1,$len,Little
	ldo		1($inp),$inp
Ldone
	bv		($rp)
	.EXIT
	nop
	.PROCEND
___
}
{
my ($out,$cnt,$max)=("%r26","%r25","%r24");
my ($tick,$lasttick)=("%r23","%r22");
my ($diff,$lastdiff)=("%r21","%r20");

$code.=<<___;
	.EXPORT	OPENSSL_instrument_bus,ENTRY,ARGW0=GR,ARGW1=GR
	.ALIGN	8
OPENSSL_instrument_bus
	.PROC
	.CALLINFO	NO_CALLS
	.ENTRY
	copy		$cnt,$rv
	mfctl		%cr16,$tick
	copy		$tick,$lasttick
	ldi		0,$diff

	fdc		0($out)
	ldw		0($out),$tick
	add		$diff,$tick,$tick
	stw		$tick,0($out)
Loop
	mfctl		%cr16,$tick
	sub		$tick,$lasttick,$diff
	copy		$tick,$lasttick

	fdc		0($out)
	ldw		0($out),$tick
	add		$diff,$tick,$tick
	stw		$tick,0($out)

	addib,<>	-1,$cnt,Loop
	addi		4,$out,$out

	bv		($rp)
	.EXIT
	sub		$rv,$cnt,$rv
	.PROCEND

	.EXPORT	OPENSSL_instrument_bus2,ENTRY,ARGW0=GR,ARGW1=GR
	.ALIGN	8
OPENSSL_instrument_bus2
	.PROC
	.CALLINFO	NO_CALLS
	.ENTRY
	copy		$cnt,$rv
	sub		%r0,$cnt,$cnt

	mfctl		%cr16,$tick
	copy		$tick,$lasttick
	ldi		0,$diff

	fdc		0($out)
	ldw		0($out),$tick
	add		$diff,$tick,$tick
	stw		$tick,0($out)

	mfctl		%cr16,$tick
	sub		$tick,$lasttick,$diff
	copy		$tick,$lasttick
Loop2
	copy		$diff,$lastdiff
	fdc		0($out)
	ldw		0($out),$tick
	add		$diff,$tick,$tick
	stw		$tick,0($out)

	addib,=		-1,$max,Ldone2
	nop

	mfctl		%cr16,$tick
	sub		$tick,$lasttick,$diff
	copy		$tick,$lasttick
	cmpclr,<>	$lastdiff,$diff,$tick
	ldi		1,$tick

	ldi		1,%r1
	xor		%r1,$tick,$tick
	addb,<>		$tick,$cnt,Loop2
	shladd,l	$tick,2,$out,$out
Ldone2
	bv		($rp)
	.EXIT
	add		$rv,$cnt,$rv
	.PROCEND
___
}
$code =~ s/cmpib,\*/comib,/gm if ($SIZE_T==4);
$code =~ s/,\*/,/gm if ($SIZE_T==4);
print $code;
close STDOUT;