152 lines
3.6 KiB
Perl
Executable File
152 lines
3.6 KiB
Perl
Executable File
#!/usr/bin/perl
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use File::Basename;
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use Cwd;
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my $cwd = getcwd;
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use strict;
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use integer;
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sub devsort;
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my $input = shift;
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my $output = shift;
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my $base = "/tmp/" . basename($input, '.in') . '.' . $$;
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my $c = $base . '.c';
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my $shilka = $base . '.shilka';
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open(INPUT, $input) or die "$0: couldn't open '$input' - $!\n";
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my @lines = ();
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my $storage_ix = -1;
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my @storage = ();
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my %pointers = ();
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my @patterns = ();
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my $patterns_ix = -1;
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while (<INPUT>) {
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if (/%storage_here/) {
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$storage_ix = @lines;
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} elsif (/^"([^"]+)",\s*(.*)$/o) {
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push(@patterns, [$1, $2]);
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next;
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}
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if (@patterns) {
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for my $f (sort devsort @patterns) {
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my $x = $f->[0];
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my $rest = $f->[1];
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my ($dev, $devrest) = ($x =~ /([^%]+)(%.*)?$/o);
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push(@lines, generate($dev, $devrest, $rest, []));
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}
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@patterns = ();
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}
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push(@lines, $_);
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}
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close INPUT;
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# @storage = sort devsort @storage;
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chop $storage[$#storage];
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chop $storage[$#storage];
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$storage[$#storage] .= "\n";
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splice(@lines, $storage_ix, 1,
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"static const device dev_storage[] =\n", "{\n",
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@storage, "};\n\n",
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sort {$a cmp $b} values %pointers);
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open(SHILKA, '>', $shilka);
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print SHILKA @lines;
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close SHILKA;
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chdir '/tmp';
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system qw'shilka -length -strip -no-definitions', $shilka;
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if ($? == -1) {
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die "$0: shilka command missing? - $!\n";
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} else {
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exit $? if $?;
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}
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chdir $cwd;
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unlink $shilka;
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open(C, $c) or die "$0: couldn't open $c - $!\n";
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@lines = <C>;
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close C;
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unlink $c;
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splice(@lines, 0, 3);
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my $ign_until_brace = 0;
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for (my $i = 0; $i < @lines; $i++) {
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$_ = $lines[$i];
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$ign_until_brace = 1 if /(?:KR_reset|KR_output_statistics).*\)\s*$/o;
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if ($ign_until_brace || /(?:#\s*line|(?:KR_reset|KR_output_statistics).*;)/) {
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$ign_until_brace = 0 if $ign_until_brace && /}/o;
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splice(@lines, $i, 1);
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redo;
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};
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}
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open(OUTPUT, '>', $output) or do {{
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if (chmod(0664, $output)) {
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open(OUTPUT, '>', $output);
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last;
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}
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die "$0: couldn't open $output - $!\n";
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}};
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print OUTPUT @lines;
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close OUTPUT;
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sub generate {
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my $dev = shift;
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my $devrest = shift;
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my $rest = shift;
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my $vars = shift;
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my $res;
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my @lines = ();
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if ($devrest) {
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my ($a, $low, $high, $fmt, $b) = ($devrest =~ /%([\({])([^-]+)-([^\)}]+)[\)}](.)(.*)/o);
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my ($middle, $devrest0) = ($b =~ /^([^%]*)(%.*)?$/);
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$fmt = "%$fmt";
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my $vars_ix = @{$vars};
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for my $f ($low .. $high) {
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$vars->[$vars_ix] = $f;
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$#{$vars} = $vars_ix;
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my $dev0 = $dev . sprintf($fmt, $f) . $middle;
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push(@lines, generate($dev0, $devrest0, $rest, $vars));
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}
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} else {
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my $fh = $dev;
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$fh =~ s%/%_%og;
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my $shilka_id = $fh;
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my $storage_str = $fh . '_storage';
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$fh =~ s/^_dev_/FH_/o;
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$fh = uc $fh;
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$shilka_id =~ s/^_dev_//o;
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$storage_str =~ s/^_dev/dev/o;
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my $storage_loc = "dev_storage + " . @storage;
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@lines = ('"' . $dev . '"' . " = $shilka_id {return $storage_loc;}\n");
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$rest = "$fh, $rest" if $rest =~ /^"/o;
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$rest = fixup($rest, $vars);
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if ($rest =~ /^(.*), ([a-z_]*_dev)/) {
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$pointers{$2} ||= "const device *$2 = $storage_loc;\n";
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$rest = $1;
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}
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push(@storage, " {\"$dev\", " . $rest . "},\n");
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}
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return @lines;
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}
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sub fixup {
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my $rest = shift;
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my $vars = shift;
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0 while $rest =~ s/{([^}]*)}/evalit($1, $vars)/eg;
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return $rest;
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}
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sub evalit {
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my $what = shift;
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my $vars = shift;
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$what =~ s/\$(\d+)/'$vars->[$1-1]'/g;
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my $res = eval $what;
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return $res;
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}
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sub devsort {
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my $a0 = $a->[0];
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my $b0 = $b->[0];
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$a0 =~ s/(\D)(\d+)/"$1" . sprintf "%05d", $2/e;
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$b0 =~ s/(\D)(\d+)/"$1" . sprintf "%05d", $2/e;
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return $a0 cmp $b0;
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}
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