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_wipe_cpu
  34 .align  4
  35 .OPENSSL_wipe_cpu:
  36         xor     r0,r0,r0
  37         mr      r3,r1
  38         xor     r4,r4,r4
  39         xor     r5,r5,r5
  40         xor     r6,r6,r6
  41         xor     r7,r7,r7
  42         xor     r8,r8,r8
  43         xor     r9,r9,r9
  44         xor     r10,r10,r10
  45         xor     r11,r11,r11
  46         xor     r12,r12,r12
  47         blr
  48
  49 .globl  .OPENSSL_atomic_add
  50 .align  4
  51 .OPENSSL_atomic_add:
  52 Loop:   lwarx   r5,0,r3
  53         add     r0,r4,r5
  54         stwcx.  r0,0,r3
  55         bne-    Loop
  56         $SIGNX  r3,r0
  57         blr
  58
  59 .globl  .OPENSSL_rdtsc
  60 .align  4
  61 .OPENSSL_rdtsc:
  62         mftb    r3
  63         mftbu   r4
  64         blr
  65
  66 .globl  .OPENSSL_cleanse
  67 .align  4
  68 .OPENSSL_cleanse:
  69         $CMPLI  r4,7
  70         li      r0,0
  71         bge     Lot
  72 Little: mtctr   r4
  73         stb     r0,0(r3)
  74         addi    r3,r3,1
  75         bdnz-   \$-8
  76         blr
  77 Lot:    andi.   r5,r3,3
  78         beq     Laligned
  79         stb     r0,0(r3)
  80         subi    r4,r4,1
  81         addi    r3,r3,1
  82         b       Lot
  83 Laligned:
  84         $SHRLI  r5,r4,2
  85         mtctr   r5
  86         stw     r0,0(r3)
  87         addi    r3,r3,4
  88         bdnz-   \$-8
  89         andi.   r4,r4,3
  90         bne     Little
  91         blr
  92 ___
  93
  94 $code =~ s/\`([^\`]*)\`/eval $1/gem;
  95 print $code;
  96 close STDOUT;