crypto/ppccpuid.pl

   1 #!/usr/bin/env perl
   2
   3 $flavour = shift;
   4
   5 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
   6 ( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
   7 ( $xlate="${dir}perlasm/ppc-xlate.pl" and -f $xlate) or
   8 die "can't locate ppc-xlate.pl";
   9
  10 open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!";
  11
  12 if ($flavour=~/64/) {
  13     $CMPLI="cmpldi";
  14     $SHRLI="srdi";
  15     $SIGNX="extsw";
  16 } else {
  17     $CMPLI="cmplwi";
  18     $SHRLI="srwi";
  19     $SIGNX="mr";
  20 }
  21
  22 $code=<<___;
  23 .machine        "any"
  24 .text
  25
  26 .globl  .OPENSSL_ppc64_probe
  27 .align  4
  28 .OPENSSL_ppc64_probe:
  29         fcfid   f1,f1
  30         extrdi  r0,r0,32,0
  31         blr
  32
  33 .globl  .OPENSSL_altivec_probe
  34 .align  4
  35 .OPENSSL_altivec_probe:
  36         .long   0x10000484      # vor   v0,v0,v0
  37         blr
  38
  39 .globl  .OPENSSL_wipe_cpu
  40 .align  4
  41 .OPENSSL_wipe_cpu:
  42         xor     r0,r0,r0
  43         fmr     f0,f31
  44         fmr     f1,f31
  45         fmr     f2,f31
  46         mr      r3,r1
  47         fmr     f3,f31
  48         xor     r4,r4,r4
  49         fmr     f4,f31
  50         xor     r5,r5,r5
  51         fmr     f5,f31
  52         xor     r6,r6,r6
  53         fmr     f6,f31
  54         xor     r7,r7,r7
  55         fmr     f7,f31
  56         xor     r8,r8,r8
  57         fmr     f8,f31
  58         xor     r9,r9,r9
  59         fmr     f9,f31
  60         xor     r10,r10,r10
  61         fmr     f10,f31
  62         xor     r11,r11,r11
  63         fmr     f11,f31
  64         xor     r12,r12,r12
  65         fmr     f12,f31
  66         fmr     f13,f31
  67         blr
  68
  69 .globl  .OPENSSL_atomic_add
  70 .align  4
  71 .OPENSSL_atomic_add:
  72 Loop:   lwarx   r5,0,r3
  73         add     r0,r4,r5
  74         stwcx.  r0,0,r3
  75         bne-    Loop
  76         $SIGNX  r3,r0
  77         blr
  78
  79 .globl  .OPENSSL_rdtsc
  80 .align  4
  81 .OPENSSL_rdtsc:
  82         mftb    r3
  83         mftbu   r4
  84         blr
  85
  86 .globl  .OPENSSL_cleanse
  87 .align  4
  88 .OPENSSL_cleanse:
  89         $CMPLI  r4,7
  90         li      r0,0
  91         bge     Lot
  92         $CMPLI  r4,0
  93         beqlr-
  94 Little: mtctr   r4
  95         stb     r0,0(r3)
  96         addi    r3,r3,1
  97         bdnz-   \$-8
  98         blr
  99 Lot:    andi.   r5,r3,3
 100         beq     Laligned
 101         stb     r0,0(r3)
 102         subi    r4,r4,1
 103         addi    r3,r3,1
 104         b       Lot
 105 Laligned:
 106         $SHRLI  r5,r4,2
 107         mtctr   r5
 108         stw     r0,0(r3)
 109         addi    r3,r3,4
 110         bdnz-   \$-8
 111         andi.   r4,r4,3
 112         bne     Little
 113         blr
 114 ___
 115
 116 $code =~ s/\`([^\`]*)\`/eval $1/gem;
 117 print $code;
 118 close STDOUT;