manual/libm-err-tab.pl

   1 #!/usr/bin/perl -w
   2 # Copyright (C) 1999-2017 Free Software Foundation, Inc.
   3 # This file is part of the GNU C Library.
   4 # Contributed by Andreas Jaeger <aj@suse.de>, 1999.
   5
   6 # The GNU C Library is free software; you can redistribute it and/or
   7 # modify it under the terms of the GNU Lesser General Public
   8 # License as published by the Free Software Foundation; either
   9 # version 2.1 of the License, or (at your option) any later version.
  10
  11 # The GNU C Library is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 # Lesser General Public License for more details.
  15
  16 # You should have received a copy of the GNU Lesser General Public
  17 # License along with the GNU C Library; if not, see
  18 # <http://www.gnu.org/licenses/>.
  19
  20 # Information about tests are stored in: %results
  21 # $results{$test}{"type"} is the result type, e.g. normal or complex.
  22 # In the following description $platform, $type and $float are:
  23 # - $platform is the used platform
  24 # - $type is either "normal", "real" (for the real part of a complex number)
  25 #   or "imag" (for the imaginary part # of a complex number).
  26 # - $float is either of float, ifloat, double, idouble, ldouble, ildouble;
  27 #   It represents the underlying floating point type (float, double or long
  28 #   double) and if inline functions (the leading i stands for inline)
  29 #   are used.
  30 # $results{$test}{$platform}{$type}{$float} is defined and has a delta
  31 # or 'fail' as value.
  32
  33 use File::Find;
  34
  35 use strict;
  36
  37 use vars qw ($sources @platforms %pplatforms);
  38 use vars qw (%results @all_floats %suffices %all_functions);
  39
  40
  41 # all_floats is in output order and contains all recognised float types that
  42 # we're going to output
  43 @all_floats = ('float', 'double', 'ldouble', 'float128');
  44 %suffices =
  45   ( 'float' => 'f',
  46     'double' => '',
  47     'ldouble' => 'l',
  48     'float128' => 'f128'
  49   );
  50
  51 # Pretty description of platform
  52 %pplatforms = ();
  53
  54 %all_functions = ();
  55
  56 if ($#ARGV == 0) {
  57   $sources = $ARGV[0];
  58 } else {
  59   $sources = '/usr/src/cvs/libc';
  60 }
  61
  62 find (\&find_files, $sources);
  63
  64 @platforms = sort by_platforms @platforms;
  65
  66 &print_all;
  67
  68 sub find_files {
  69   if ($_ eq 'libm-test-ulps') {
  70     # print "Parsing $File::Find::name\n";
  71     push @platforms, $File::Find::dir;
  72     my ($file, $name);
  73     $file = "${File::Find::name}-name";
  74     open NAME, $file or die ("Can't open $file: $!");
  75     $name = <NAME>;
  76     chomp $name;
  77     close NAME;
  78     $pplatforms{$File::Find::dir} = $name;
  79     &parse_ulps ($File::Find::name, $File::Find::dir);
  80   }
  81 }
  82
  83 # Parse ulps file
  84 sub parse_ulps {
  85   my ($file, $platform) = @_;
  86   my ($test, $type, $float, $eps, $ignore_fn);
  87
  88   # $type has the following values:
  89   # "normal": No complex variable
  90   # "real": Real part of complex result
  91   # "imag": Imaginary part of complex result
  92   open ULP, $file  or die ("Can't open $file: $!");
  93   while (<ULP>) {
  94     chop;
  95     # ignore comments and empty lines
  96     next if /^#/;
  97     next if /^\s*$/;
  98     if (/^Function: /) {
  99       if (/Real part of/) {
 100         s/Real part of //;
 101         $type = 'real';
 102       } elsif (/Imaginary part of/) {
 103         s/Imaginary part of //;
 104         $type = 'imag';
 105       } else {
 106         $type = 'normal';
 107       }
 108       ($test) = ($_ =~ /^Function:\s*\"([a-zA-Z0-9_]+)\"/);
 109       next;
 110     }
 111     if ($test =~ /_(downward|towardzero|upward|vlen)/) {
 112       $ignore_fn = 1;
 113     } else {
 114       $ignore_fn = 0;
 115       $all_functions{$test} = 1;
 116     }
 117     if (/^i?(float|double|ldouble|float128):/) {
 118       ($float, $eps) = split /\s*:\s*/,$_,2;
 119       if ($ignore_fn) {
 120         next;
 121       } elsif ($eps eq 'fail') {
 122         $results{$test}{$platform}{$type}{$float} = 'fail';
 123       } elsif ($eps eq "0") {
 124         # ignore
 125         next;
 126       } elsif (!exists $results{$test}{$platform}{$type}{$float}
 127             || $results{$test}{$platform}{$type}{$float} ne 'fail') {
 128         $results{$test}{$platform}{$type}{$float} = $eps;
 129       }
 130       if ($type =~ /^real|imag$/) {
 131         $results{$test}{'type'} = 'complex';
 132       } elsif ($type eq 'normal') {
 133         $results{$test}{'type'} = 'normal';
 134       }
 135       next;
 136     }
 137     print "Skipping unknown entry: `$_'\n";
 138   }
 139   close ULP;
 140 }
 141
 142 sub get_value {
 143   my ($fct, $platform, $type, $float) = @_;
 144
 145   return (exists $results{$fct}{$platform}{$type}{$float}
 146           ? $results{$fct}{$platform}{$type}{$float} : "0");
 147 }
 148
 149 sub print_platforms {
 150   my (@p) = @_;
 151   my ($fct, $platform, $float, $first, $i, $platform_no, $platform_total);
 152
 153   print '@multitable {nexttowardf} ';
 154   foreach (@p) {
 155     print ' {1000 + i 1000}';
 156   }
 157   print "\n";
 158
 159   print '@item Function ';
 160   foreach (@p) {
 161     print ' @tab ';
 162     print $pplatforms{$_};
 163   }
 164   print "\n";
 165
 166
 167   foreach $fct (sort keys %all_functions) {
 168     foreach $float (@all_floats) {
 169       print "\@item $fct$suffices{$float} ";
 170       foreach $platform (@p) {
 171         print ' @tab ';
 172         if (exists $results{$fct}{$platform}{'normal'}{$float}
 173             || exists $results{$fct}{$platform}{'real'}{$float}
 174             || exists $results{$fct}{$platform}{'imag'}{$float}) {
 175           if ($results{$fct}{'type'} eq 'complex') {
 176             print &get_value ($fct, $platform, 'real', $float),
 177             ' + i ', &get_value ($fct, $platform, 'imag', $float);
 178           } else {
 179             print $results{$fct}{$platform}{'normal'}{$float};
 180           }
 181         } else {
 182           print '-';
 183         }
 184       }
 185       print "\n";
 186     }
 187   }
 188
 189   print "\@end multitable\n";
 190 }
 191
 192 sub print_all {
 193   my ($i, $max);
 194
 195   my ($columns) = 5;
 196
 197   # Print only 5 platforms at a time.
 198   for ($i=0; $i < $#platforms; $i+=$columns) {
 199     $max = $i+$columns-1 > $#platforms ? $#platforms : $i+$columns-1;
 200     print_platforms (@platforms[$i .. $max]);
 201   }
 202 }
 203
 204 sub by_platforms {
 205   return $pplatforms{$a} cmp $pplatforms{$b};
 206 }