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_cpuid_setup
  27 .align  4
  28 .OPENSSL_cpuid_setup:
  29         blr
  30
  31 .globl  .OPENSSL_wipe_cpu
  32 .align  4
  33 .OPENSSL_wipe_cpu:
  34         xor     r0,r0,r0
  35         mr      r3,r1
  36         xor     r4,r4,r4
  37         xor     r5,r5,r5
  38         xor     r6,r6,r6
  39         xor     r7,r7,r7
  40         xor     r8,r8,r8
  41         xor     r9,r9,r9
  42         xor     r10,r10,r10
  43         xor     r11,r11,r11
  44         xor     r12,r12,r12
  45         blr
  46
  47 .globl  .OPENSSL_atomic_add
  48 .align  4
  49 .OPENSSL_atomic_add:
  50 Loop:   lwarx   r5,0,r3
  51         add     r0,r4,r5
  52         stwcx.  r0,0,r3
  53         bne-    Loop
  54         $SIGNX  r3,r0
  55         blr
  56
  57 .globl  .OPENSSL_rdtsc
  58 .align  4
  59 .OPENSSL_rdtsc:
  60         mftb    r3
  61         mftbu   r4
  62         blr
  63
  64 .globl  .OPENSSL_cleanse
  65 .align  4
  66 .OPENSSL_cleanse:
  67         $CMPLI  r4,7
  68         li      r0,0
  69         bge     Lot
  70 Little: mtctr   r4
  71         stb     r0,0(r3)
  72         addi    r3,r3,1
  73         bdnz-   \$-8
  74         blr
  75 Lot:    andi.   r5,r3,3
  76         beq     Laligned
  77         stb     r0,0(r3)
  78         subi    r4,r4,1
  79         addi    r3,r3,1
  80         b       Lot
  81 Laligned:
  82         $SHRLI  r5,r4,2
  83         mtctr   r5
  84         stw     r0,0(r3)
  85         addi    r3,r3,4
  86         bdnz-   \$-8
  87         andi.   r4,r4,3
  88         bne     Little
  89         blr
  90 ___
  91
  92 $code =~ s/\`([^\`]*)\`/eval $1/gem;
  93 print $code;
  94 close STDOUT;