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| #! /usr/bin/env perl
| # Copyright 2009-2020 The OpenSSL Project Authors. All Rights Reserved.
| #
| # Licensed under the OpenSSL license (the "License"). You may not use
| # this file except in compliance with the License. You can obtain a copy
| # in the file LICENSE in the source distribution or at
| # https://www.openssl.org/source/license.html
|
|
| $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,L\$done
| nop
| cmpib,*>>= 15,$len,L\$ittle
| ldi $SIZE_T-1,%r1
|
| L\$align
| and,*<> $inp,%r1,%r28
| b,n L\$aligned
| stb %r0,0($inp)
| ldo -1($len),$len
| b L\$align
| ldo 1($inp),$inp
|
| L\$aligned
| andcm $len,%r1,%r28
| L\$ot
| $ST %r0,0($inp)
| addib,*<> -$SIZE_T,%r28,L\$ot
| ldo $SIZE_T($inp),$inp
|
| and,*<> $len,%r1,$len
| b,n L\$done
| L\$ittle
| stb %r0,0($inp)
| addib,*<> -1,$len,L\$ittle
| ldo 1($inp),$inp
| L\$done
| bv ($rp)
| .EXIT
| nop
| .PROCEND
| ___
| }
| {
| my ($in1,$in2,$len)=("%r26","%r25","%r24");
|
| $code.=<<___;
| .EXPORT CRYPTO_memcmp,ENTRY,ARGW0=GR,ARGW1=GR,ARGW1=GR
| .ALIGN 8
| CRYPTO_memcmp
| .PROC
| .CALLINFO NO_CALLS
| .ENTRY
| cmpib,*= 0,$len,L\$no_data
| xor $rv,$rv,$rv
|
| L\$oop_cmp
| ldb 0($in1),%r19
| ldb 0($in2),%r20
| ldo 1($in1),$in1
| ldo 1($in2),$in2
| xor %r19,%r20,%r29
| addib,*<> -1,$len,L\$oop_cmp
| or %r29,$rv,$rv
|
| sub %r0,$rv,%r29
| extru %r29,0,1,$rv
| L\$no_data
| 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)
| L\$oop
| 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,$cnt,L\$oop
| addi 4,$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
| L\$oop2
| copy $diff,$lastdiff
| fdc 0($out)
| ldw 0($out),$tick
| add $diff,$tick,$tick
| stw $tick,0($out)
|
| addib,= -1,$max,L\$done2
| nop
|
| mfctl %cr16,$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,L\$oop2
| shladd,l $tick,2,$out,$out
| L\$done2
| bv ($rp)
| .EXIT
| add $rv,$cnt,$rv
| .PROCEND
| ___
| }
|
| if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
| =~ /GNU assembler/) {
| $gnuas = 1;
| }
|
| foreach(split("\n",$code)) {
|
| s/(\.LEVEL\s+2\.0)W/$1w/ if ($gnuas && $SIZE_T==8);
| s/\.SPACE\s+\$TEXT\$/.text/ if ($gnuas && $SIZE_T==8);
| s/\.SUBSPA.*// if ($gnuas && $SIZE_T==8);
| s/cmpib,\*/comib,/ if ($SIZE_T==4);
| s/,\*/,/ if ($SIZE_T==4);
| s/\bbv\b/bve/ if ($SIZE_T==8);
|
| print $_,"\n";
| }
| close STDOUT or die "error closing STDOUT: $!";
|
|
