ms/uplink-x86_64.pl

   1 #! /usr/bin/env perl
   2 # Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved.
   3 #
   4 # Licensed under the OpenSSL license (the "License").  You may not use
   5 # this file except in compliance with the License.  You can obtain a copy
   6 # in the file LICENSE in the source distribution or at
   7 # https://www.openssl.org/source/license.html
   8
   9 $output=pop;
  10 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
  11 open OUT,"| \"$^X\" \"${dir}../crypto/perlasm/x86_64-xlate.pl\" \"$output\"";
  12 *STDOUT=*OUT;
  13 push(@INC,"${dir}.");
  14
  15 require "uplink-common.pl";
  16
  17 $prefix="_lazy";
  18
  19 print <<___;
  20 .text
  21 .extern OPENSSL_Uplink
  22 .globl  OPENSSL_UplinkTable
  23 ___
  24 for ($i=1;$i<=$N;$i++) {
  25 print <<___;
  26 .type   $prefix${i},\@abi-omnipotent
  27 .align  16
  28 $prefix${i}:
  29         .byte   0x48,0x83,0xEC,0x28     # sub rsp,40
  30         mov     %rcx,48(%rsp)
  31         mov     %rdx,56(%rsp)
  32         mov     %r8,64(%rsp)
  33         mov     %r9,72(%rsp)
  34         lea     OPENSSL_UplinkTable(%rip),%rcx
  35         mov     \$$i,%rdx
  36         call    OPENSSL_Uplink
  37         mov     48(%rsp),%rcx
  38         mov     56(%rsp),%rdx
  39         mov     64(%rsp),%r8
  40         mov     72(%rsp),%r9
  41         lea     OPENSSL_UplinkTable(%rip),%rax
  42         add     \$40,%rsp
  43         jmp     *8*$i(%rax)
  44 $prefix${i}_end:
  45 .size   $prefix${i},.-$prefix${i}
  46 ___
  47 }
  48 print <<___;
  49 .data
  50 OPENSSL_UplinkTable:
  51         .quad   $N
  52 ___
  53 for ($i=1;$i<=$N;$i++) {   print "      .quad   $prefix$i\n";   }
  54 print <<___;
  55 .section        .pdata,"r"
  56 .align          4
  57 ___
  58 for ($i=1;$i<=$N;$i++) {
  59 print <<___;
  60         .rva    $prefix${i},$prefix${i}_end,${prefix}_unwind_info
  61 ___
  62 }
  63 print <<___;
  64 .section        .xdata,"r"
  65 .align          8
  66 ${prefix}_unwind_info:
  67         .byte   0x01,0x04,0x01,0x00
  68         .byte   0x04,0x42,0x00,0x00
  69 ___
  70
  71 close STDOUT;