crypto/pariscid.pl

   1 #! /usr/bin/env perl
   2 # Copyright 2009-2018 The OpenSSL Project Authors. All Rights Reserved.
   3 #
   4 # Licensed under the Apache License 2.0 (the "License").  You may not use
   5 # this file except in compliance with the License.  You can obtain a copy
   6 # in the file LICENSE in the source distribution or at
   7 # https://www.openssl.org/source/license.html
   8
   9
  10 $flavour = shift;
  11 $output = shift;
  12 open STDOUT,">$output";
  13
  14 if ($flavour =~ /64/) {
  15         $LEVEL          ="2.0W";
  16         $SIZE_T         =8;
  17         $ST             ="std";
  18 } else {
  19         $LEVEL          ="1.1";
  20         $SIZE_T         =4;
  21         $ST             ="stw";
  22 }
  23
  24 $rp="%r2";
  25 $sp="%r30";
  26 $rv="%r28";
  27
  28 $code=<<___;
  29         .LEVEL  $LEVEL
  30         .SPACE  \$TEXT\$
  31         .SUBSPA \$CODE\$,QUAD=0,ALIGN=8,ACCESS=0x2C,CODE_ONLY
  32
  33         .EXPORT OPENSSL_cpuid_setup,ENTRY
  34         .ALIGN  8
  35 OPENSSL_cpuid_setup
  36         .PROC
  37         .CALLINFO       NO_CALLS
  38         .ENTRY
  39         bv      ($rp)
  40         .EXIT
  41         nop
  42         .PROCEND
  43
  44         .EXPORT OPENSSL_rdtsc,ENTRY
  45         .ALIGN  8
  46 OPENSSL_rdtsc
  47         .PROC
  48         .CALLINFO       NO_CALLS
  49         .ENTRY
  50         mfctl   %cr16,$rv
  51         bv      ($rp)
  52         .EXIT
  53         nop
  54         .PROCEND
  55
  56         .EXPORT OPENSSL_wipe_cpu,ENTRY
  57         .ALIGN  8
  58 OPENSSL_wipe_cpu
  59         .PROC
  60         .CALLINFO       NO_CALLS
  61         .ENTRY
  62         xor             %r0,%r0,%r1
  63         fcpy,dbl        %fr0,%fr4
  64         xor             %r0,%r0,%r19
  65         fcpy,dbl        %fr0,%fr5
  66         xor             %r0,%r0,%r20
  67         fcpy,dbl        %fr0,%fr6
  68         xor             %r0,%r0,%r21
  69         fcpy,dbl        %fr0,%fr7
  70         xor             %r0,%r0,%r22
  71         fcpy,dbl        %fr0,%fr8
  72         xor             %r0,%r0,%r23
  73         fcpy,dbl        %fr0,%fr9
  74         xor             %r0,%r0,%r24
  75         fcpy,dbl        %fr0,%fr10
  76         xor             %r0,%r0,%r25
  77         fcpy,dbl        %fr0,%fr11
  78         xor             %r0,%r0,%r26
  79         fcpy,dbl        %fr0,%fr22
  80         xor             %r0,%r0,%r29
  81         fcpy,dbl        %fr0,%fr23
  82         xor             %r0,%r0,%r31
  83         fcpy,dbl        %fr0,%fr24
  84         fcpy,dbl        %fr0,%fr25
  85         fcpy,dbl        %fr0,%fr26
  86         fcpy,dbl        %fr0,%fr27
  87         fcpy,dbl        %fr0,%fr28
  88         fcpy,dbl        %fr0,%fr29
  89         fcpy,dbl        %fr0,%fr30
  90         fcpy,dbl        %fr0,%fr31
  91         bv              ($rp)
  92         .EXIT
  93         ldo             0($sp),$rv
  94         .PROCEND
  95 ___
  96 {
  97 my $inp="%r26";
  98 my $len="%r25";
  99
 100 $code.=<<___;
 101         .EXPORT OPENSSL_cleanse,ENTRY,ARGW0=GR,ARGW1=GR
 102         .ALIGN  8
 103 OPENSSL_cleanse
 104         .PROC
 105         .CALLINFO       NO_CALLS
 106         .ENTRY
 107         cmpib,*=        0,$len,L\$done
 108         nop
 109         cmpib,*>>=      15,$len,L\$ittle
 110         ldi             $SIZE_T-1,%r1
 111
 112 L\$align
 113         and,*<>         $inp,%r1,%r28
 114         b,n             L\$aligned
 115         stb             %r0,0($inp)
 116         ldo             -1($len),$len
 117         b               L\$align
 118         ldo             1($inp),$inp
 119
 120 L\$aligned
 121         andcm           $len,%r1,%r28
 122 L\$ot
 123         $ST             %r0,0($inp)
 124         addib,*<>       -$SIZE_T,%r28,L\$ot
 125         ldo             $SIZE_T($inp),$inp
 126
 127         and,*<>         $len,%r1,$len
 128         b,n             L\$done
 129 L\$ittle
 130         stb             %r0,0($inp)
 131         addib,*<>       -1,$len,L\$ittle
 132         ldo             1($inp),$inp
 133 L\$done
 134         bv              ($rp)
 135         .EXIT
 136         nop
 137         .PROCEND
 138 ___
 139 }
 140 {
 141 my ($in1,$in2,$len)=("%r26","%r25","%r24");
 142
 143 $code.=<<___;
 144         .EXPORT CRYPTO_memcmp,ENTRY,ARGW0=GR,ARGW1=GR,ARGW1=GR
 145         .ALIGN  8
 146 CRYPTO_memcmp
 147         .PROC
 148         .CALLINFO       NO_CALLS
 149         .ENTRY
 150         cmpib,*=        0,$len,L\$no_data
 151         xor             $rv,$rv,$rv
 152
 153 L\$oop_cmp
 154         ldb             0($in1),%r19
 155         ldb             0($in2),%r20
 156         ldo             1($in1),$in1
 157         ldo             1($in2),$in2
 158         xor             %r19,%r20,%r29
 159         addib,*<>       -1,$len,L\$oop_cmp
 160         or              %r29,$rv,$rv
 161
 162         sub             %r0,$rv,%r29
 163         extru           %r29,0,1,$rv
 164 L\$no_data
 165         bv              ($rp)
 166         .EXIT
 167         nop
 168         .PROCEND
 169 ___
 170 }
 171 {
 172 my ($out,$cnt,$max)=("%r26","%r25","%r24");
 173 my ($tick,$lasttick)=("%r23","%r22");
 174 my ($diff,$lastdiff)=("%r21","%r20");
 175
 176 $code.=<<___;
 177         .EXPORT OPENSSL_instrument_bus,ENTRY,ARGW0=GR,ARGW1=GR
 178         .ALIGN  8
 179 OPENSSL_instrument_bus
 180         .PROC
 181         .CALLINFO       NO_CALLS
 182         .ENTRY
 183         copy            $cnt,$rv
 184         mfctl           %cr16,$tick
 185         copy            $tick,$lasttick
 186         ldi             0,$diff
 187
 188         fdc             0($out)
 189         ldw             0($out),$tick
 190         add             $diff,$tick,$tick
 191         stw             $tick,0($out)
 192 L\$oop
 193         mfctl           %cr16,$tick
 194         sub             $tick,$lasttick,$diff
 195         copy            $tick,$lasttick
 196
 197         fdc             0($out)
 198         ldw             0($out),$tick
 199         add             $diff,$tick,$tick
 200         stw             $tick,0($out)
 201
 202         addib,<>        -1,$cnt,L\$oop
 203         addi            4,$out,$out
 204
 205         bv              ($rp)
 206         .EXIT
 207         sub             $rv,$cnt,$rv
 208         .PROCEND
 209
 210         .EXPORT OPENSSL_instrument_bus2,ENTRY,ARGW0=GR,ARGW1=GR
 211         .ALIGN  8
 212 OPENSSL_instrument_bus2
 213         .PROC
 214         .CALLINFO       NO_CALLS
 215         .ENTRY
 216         copy            $cnt,$rv
 217         sub             %r0,$cnt,$cnt
 218
 219         mfctl           %cr16,$tick
 220         copy            $tick,$lasttick
 221         ldi             0,$diff
 222
 223         fdc             0($out)
 224         ldw             0($out),$tick
 225         add             $diff,$tick,$tick
 226         stw             $tick,0($out)
 227
 228         mfctl           %cr16,$tick
 229         sub             $tick,$lasttick,$diff
 230         copy            $tick,$lasttick
 231 L\$oop2
 232         copy            $diff,$lastdiff
 233         fdc             0($out)
 234         ldw             0($out),$tick
 235         add             $diff,$tick,$tick
 236         stw             $tick,0($out)
 237
 238         addib,=         -1,$max,L\$done2
 239         nop
 240
 241         mfctl           %cr16,$tick
 242         sub             $tick,$lasttick,$diff
 243         copy            $tick,$lasttick
 244         cmpclr,<>       $lastdiff,$diff,$tick
 245         ldi             1,$tick
 246
 247         ldi             1,%r1
 248         xor             %r1,$tick,$tick
 249         addb,<>         $tick,$cnt,L\$oop2
 250         shladd,l        $tick,2,$out,$out
 251 L\$done2
 252         bv              ($rp)
 253         .EXIT
 254         add             $rv,$cnt,$rv
 255         .PROCEND
 256 ___
 257 }
 258
 259 if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
 260         =~ /GNU assembler/) {
 261     $gnuas = 1;
 262 }
 263
 264 foreach(split("\n",$code)) {
 265
 266         s/(\.LEVEL\s+2\.0)W/$1w/        if ($gnuas && $SIZE_T==8);
 267         s/\.SPACE\s+\$TEXT\$/.text/     if ($gnuas && $SIZE_T==8);
 268         s/\.SUBSPA.*//                  if ($gnuas && $SIZE_T==8);
 269         s/cmpib,\*/comib,/              if ($SIZE_T==4);
 270         s/,\*/,/                        if ($SIZE_T==4);
 271         s/\bbv\b/bve/                   if ($SIZE_T==8);
 272
 273         print $_,"\n";
 274 }
 275 close STDOUT;
 276