lib/libcrypto/perlasm/x86asm.pl

   1 #!/usr/bin/perl
   2
   3 # require 'x86asm.pl';
   4 # &asm_init("cpp","des-586.pl");
   5 # XXX
   6 # XXX
   7 # main'asm_finish
   8
   9 sub main'asm_finish
  10         {
  11         &file_end();
  12         &asm_finish_cpp() if $cpp;
  13         print &asm_get_output();
  14         }
  15
  16 sub main'asm_init
  17         {
  18         ($type,$fn,$i386)=@_;
  19         $filename=$fn;
  20
  21         $cpp=$sol=$aout=$win32=$gaswin=0;
  22         if (    ($type eq "elf"))
  23                 { require "x86unix.pl"; }
  24         elsif ( ($type eq "a.out"))
  25                 { $aout=1; require "x86unix.pl"; }
  26         elsif ( ($type eq "gaswin"))
  27                 { $gaswin=1; $aout=1; require "x86unix.pl"; }
  28         elsif ( ($type eq "sol"))
  29                 { $sol=1; require "x86unix.pl"; }
  30         elsif ( ($type eq "cpp"))
  31                 { $cpp=1; require "x86unix.pl"; }
  32         elsif ( ($type eq "win32"))
  33                 { $win32=1; require "x86ms.pl"; }
  34         elsif ( ($type eq "win32n"))
  35                 { $win32=1; require "x86nasm.pl"; }
  36         else
  37                 {
  38                 print STDERR <<"EOF";
  39 Pick one target type from
  40         elf     - linux, FreeBSD etc
  41         a.out   - old linux
  42         sol     - x86 solaris
  43         cpp     - format so x86unix.cpp can be used
  44         win32   - Windows 95/Windows NT
  45         win32n  - Windows 95/Windows NT NASM format
  46 EOF
  47                 exit(1);
  48                 }
  49
  50         &asm_init_output();
  51
  52 &comment("Don't even think of reading this code");
  53 &comment("It was automatically generated by $filename");
  54 &comment("Which is a perl program used to generate the x86 assember for");
  55 &comment("any of elf, a.out, BSDI, Win32, gaswin (for GNU as on Win32) or Solaris");
  56 &comment("eric <eay\@cryptsoft.com>");
  57 &comment("");
  58
  59         $filename =~ s/\.pl$//;
  60         &file($filename);
  61         }
  62
  63 sub asm_finish_cpp
  64         {
  65         return unless $cpp;
  66
  67         local($tmp,$i);
  68         foreach $i (&get_labels())
  69                 {
  70                 $tmp.="#define $i _$i\n";
  71                 }
  72         print <<"EOF";
  73 /* Run the C pre-processor over this file with one of the following defined
  74  * ELF - elf object files,
  75  * OUT - a.out object files,
  76  * BSDI - BSDI style a.out object files
  77  * SOL - Solaris style elf
  78  */
  79
  80 #define TYPE(a,b)       .type   a,b
  81 #define SIZE(a,b)       .size   a,b
  82
  83 #if defined(OUT) || (defined(BSDI) && !defined(ELF))
  84 $tmp
  85 #endif
  86
  87 #ifdef OUT
  88 #define OK      1
  89 #define ALIGN   4
  90 #endif
  91
  92 #if defined(BSDI) && !defined(ELF)
  93 #define OK              1
  94 #define ALIGN           4
  95 #undef SIZE
  96 #undef TYPE
  97 #define SIZE(a,b)
  98 #define TYPE(a,b)
  99 #endif
 100
 101 #if defined(ELF) || defined(SOL)
 102 #define OK              1
 103 #define ALIGN           16
 104 #endif
 105
 106 #ifndef OK
 107 You need to define one of
 108 ELF - elf systems - linux-elf, NetBSD and DG-UX
 109 OUT - a.out systems - linux-a.out and FreeBSD
 110 SOL - solaris systems, which are elf with strange comment lines
 111 BSDI - a.out with a very primative version of as.
 112 #endif
 113
 114 /* Let the Assembler begin :-) */
 115 EOF
 116         }
 117
 118 1;