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|
#!/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
___
{
$inp="%r26";
$len="%r25";
$code.=<<___;
.EXPORT OPENSSL_cleanse,ENTRY,ARGW0=GR,ARGW1=GR
.ALIGN 8
OPENSSL_cleanse
.PROC
.CALLINFO NO_CALLS
.ENTRY
cmpib,*>> 15,$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
Loop
$ST %r0,0($inp)
addib,*vnz -$SIZE_T,%r28,Loop
ldo $SIZE_T($inp),$inp
and,*<> $len,%r1,$len
b,n Ldone
Little
stb %r0,0($inp)
addib,*vnz -1,$len,Little
ldo 1($inp),$inp
Ldone
bv ($rp)
.EXIT
nop
.PROCEND
___
}
$code =~ s/cmpib,\*/comib,/gm if ($SIZE_T==4);
$code =~ s/,\*/,/gm if ($SIZE_T==4);
print $code;
close STDOUT;
|
