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474 lines
13 KiB
Perl
474 lines
13 KiB
Perl
#!/usr/bin/perl -w
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#
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# Copyright (c) 1992, 1993
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# The Regents of the University of California. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. All advertising materials mentioning features or use of this software
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# must display the following acknowledgement:
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# This product includes software developed by the University of
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# California, Berkeley and its contributors.
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# 4. Neither the name of the University nor the names of its contributors
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# may be used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# From @(#)vnode_if.sh 8.1 (Berkeley) 6/10/93
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# From @(#)makedevops.sh 1.1 1998/06/14 13:53:12 dfr Exp $
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# From @(#)makedevops.sh ?.? 1998/10/05
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# From src/sys/kern/makedevops.pl,v 1.12 1999/11/22 14:40:04 n_hibma Exp
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#
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# $FreeBSD$
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#
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# Script to produce kobj front-end sugar.
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#
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use strict;
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use Getopt::Std;
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use vars qw($opt_c $opt_d $opt_h $opt_l $opt_p);
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my $line_width = 80;
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my $gerror = 0;
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my @filenames;
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my $tmpdir;
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my $intname;
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# Process the command line
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#
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getopts('cdhl:p')
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or usage();
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warn "Will produce files in original not in current directory"
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if $opt_d && $opt_p;
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if (defined($opt_l)) {
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die("Invalid line width '$opt_l'\n")
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unless ($opt_l =~ m/^\d*$/ && $opt_l > 0);
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$line_width = $opt_l;
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warn "Line width set to $line_width"
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if $opt_d;
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}
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foreach my $arg (@ARGV) {
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die("Invalid input filename '$arg'\n")
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unless ($arg =~ m/\.m$/);
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warn "Filename: $arg"
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if $opt_d;
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push @filenames, $arg;
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}
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# Validate the command line parameters
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#
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&usage()
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unless ($opt_c or $opt_h)
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and $#filenames != -1;
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# FIXME should be able to do this more easily
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#
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$tmpdir = $ENV{'TMPDIR'}; # environment variables
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$tmpdir = $ENV{'TMP'}
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if !$tmpdir;
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$tmpdir = $ENV{'TEMP'}
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if !$tmpdir;
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$tmpdir = '/tmp' # look for a physical directory
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if !$tmpdir and -d '/tmp';
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$tmpdir = '/usr/tmp'
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if !$tmpdir and -d '/usr/tmp';
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$tmpdir = '/var/tmp'
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if !$tmpdir and -d '/var/tmp';
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$tmpdir = '.' # give up and use current dir
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if !$tmpdir;
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foreach my $src (@filenames) {
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# Names of the created files
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my $ctmpname = "$tmpdir/ctmp.$$";
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my $htmpname = "$tmpdir/htmp.$$";
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my ($name, $path, $suffix) = &fileparse($src, '.m');
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$path = '.'
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unless $opt_p;
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my $cfilename="$path/$name.c";
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my $hfilename="$path/$name.h";
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warn "Processing from $src to $cfilename / $hfilename via $ctmpname / $htmpname"
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if $opt_d;
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die "Could not open $src for reading, $!"
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if !open SRC, "$src";
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die "Could not open $ctmpname for writing, $!"
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if $opt_c and !open CFILE, ">$ctmpname";
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die "Could not open $htmpname for writing, $!"
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if $opt_h and !open HFILE, ">$htmpname";
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if ($opt_c) {
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# Produce the header of the C file
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#
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print CFILE "/*\n";
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print CFILE " * This file is produced automatically.\n";
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print CFILE " * Do not modify anything in here by hand.\n";
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print CFILE " *\n";
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print CFILE " * Created from source file\n";
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print CFILE " * $src\n";
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print CFILE " * with\n";
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print CFILE " * $0\n";
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print CFILE " *\n";
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print CFILE " * See the source file for legal information\n";
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print CFILE " */\n";
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print CFILE "\n";
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print CFILE "#include <sys/param.h>\n";
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print CFILE "#include <sys/queue.h>\n";
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print CFILE "#include <sys/kernel.h>\n";
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print CFILE "#include <sys/kobj.h>\n";
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}
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if ($opt_h) {
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# Produce the header of the H file
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#
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print HFILE "/*\n";
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print HFILE " * This file is produced automatically.\n";
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print HFILE " * Do not modify anything in here by hand.\n";
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print HFILE " *\n";
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print HFILE " * Created from source file\n";
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print HFILE " * $src\n";
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print HFILE " * with\n";
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print HFILE " * $0\n";
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print HFILE " *\n";
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print HFILE " * See the source file for legal information\n";
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print HFILE " */\n";
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print HFILE "\n";
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}
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my %methods = (); # clear list of methods
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my @mnames = ();
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my @defaultmethods = ();
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my $lineno = 0;
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my $error = 0; # to signal clean up and gerror setting
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LINE: while (my $line = <SRC>) {
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$lineno++;
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# take special notice of include directives.
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#
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if ($line =~ m/^#\s*include\s+(["<])([^">]+)([">]).*/i) {
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warn "Included file: $1$2" . ($1 eq '<'? '>':'"')
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if $opt_d;
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print CFILE "#include $1$2" . ($1 eq '<'? '>':'"') . "\n"
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if $opt_c;
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}
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$line =~ s/#.*//; # remove comments
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$line =~ s/^\s+//; # remove leading ...
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$line =~ s/\s+$//; # remove trailing whitespace
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if ($line =~ m/^$/) { # skip empty lines
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# nop
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} elsif ($line =~ m/^INTERFACE\s*([^\s;]*)(\s*;?)/i) {
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$intname = $1;
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my $semicolon = $2;
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unless ($intname =~ m/^[a-z_][a-z0-9_]*$/) {
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warn $line
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if $opt_d;
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warn "$src:$lineno: Invalid interface name '$intname', use [a-z_][a-z0-9_]*";
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$error = 1;
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last LINE;
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}
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warn "$src:$lineno: semicolon missing at end of line, no problem"
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if $semicolon !~ s/;$//;
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warn "Interface $intname"
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if $opt_d;
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print HFILE '#ifndef _'.$intname."_if_h_\n"
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if $opt_h;
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print HFILE '#define _'.$intname."_if_h_\n\n"
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if $opt_h;
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print CFILE '#include "'.$intname.'_if.h"'."\n\n"
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if $opt_c;
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} elsif ($line =~ m/^CODE\s*{$/i) {
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my $code = "";
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my $line = <SRC>;
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$line =~ m/^(\s*)/;
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my $indent = $1; # find the indent used
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while ($line !~ m/^}/) {
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$line =~ s/^$indent//g; # remove the indent
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$code .= $line;
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$line = <SRC>;
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$lineno++
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}
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print CFILE "\n".$code."\n"
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if $opt_c;
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} elsif ($line =~ m/^HEADER\s*{$/i) {
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my $header = "";
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my $line = <SRC>;
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$line =~ m/^(\s*)/;
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my $indent = $1; # find the indent used
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while ($line !~ m/^}/) {
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$line =~ s/^$indent//g; # remove the indent
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$header .= $line;
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$line = <SRC>;
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$lineno++
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}
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print HFILE $header
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if $opt_h;
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} elsif ($line =~ m/^(STATIC|)METHOD/i) {
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my $default;
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# Get the return type function name and delete that from
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# the line. What is left is the possibly first function argument
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# if it is on the same line.
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#
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if (!$intname) {
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warn "$src:$lineno: No interface name defined";
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$error = 1;
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last LINE;
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}
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$line =~ s/^(STATIC|)METHOD\s+([^\{]+?)\s*\{\s*//i;
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my $static = $1;
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my @ret = split m/\s+/, $2;
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$name = pop @ret; # last element is name of method
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my $ret = join(" ", @ret); # return type
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warn "Method: name=$name return type=$ret"
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if $opt_d;
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if (!$name or !$ret) {
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warn $line
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if $opt_d;
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warn "$src:$lineno: Invalid method specification";
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$error = 1;
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last LINE;
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}
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unless ($name =~ m/^[a-z_][a-z_0-9]*$/) {
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warn $line
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if $opt_d;
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warn "$src:$lineno: Invalid method name '$name', use [a-z_][a-z0-9_]*";
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$error = 1;
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last LINE;
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}
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if (defined($methods{$name})) {
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warn "$src:$lineno: Duplicate method name";
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$error = 1;
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last LINE;
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}
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$methods{$name} = $name;
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push @mnames, $name;
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while ($line !~ m/}/ and $line .= <SRC>) {
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$lineno++
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}
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$default = "";
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if ($line !~ s/};?(.*)//) { # remove first '}' and trailing garbage
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# The '}' was not there (the rest is optional), so complain
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warn "$src:$lineno: Premature end of file";
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$error = 1;
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last LINE;
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}
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my $extra = $1;
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if ($extra =~ /\s*DEFAULT\s*([a-zA-Z_][a-zA-Z_0-9]*)\s*;/) {
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$default = $1;
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} else {
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warn "$src:$lineno: Ignored '$1'" # warn about garbage at end of line
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if $opt_d and $1;
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}
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# Create a list of variables without the types prepended
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#
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$line =~ s/^\s+//; # remove leading ...
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$line =~ s/\s+$//; # ... and trailing whitespace
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$line =~ s/\s+/ /g; # remove double spaces
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my @arguments = split m/\s*;\s*/, $line;
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my @varnames = (); # list of varnames
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foreach my $argument (@arguments) {
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next # skip argument if argument is empty
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if !$argument;
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my @ar = split m/[*\s]+/, $argument;
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if ($#ar == 0) { # only 1 word in argument?
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warn "$src:$lineno: no type for '$argument'";
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$error = 1;
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last LINE;
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}
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push @varnames, $ar[-1]; # last element is name of variable
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};
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warn 'Arguments: ' . join(', ', @arguments) . "\n"
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. 'Varnames: ' . join(', ', @varnames)
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if $opt_d;
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my $mname = $intname.'_'.$name; # method name
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my $umname = uc($mname); # uppercase method name
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my $arguments = join(", ", @arguments);
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my $firstvar = $varnames[0];
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my $varnames = join(", ", @varnames);
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$default = "0" if $default eq "";
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push @defaultmethods, $default;
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if ($opt_h) {
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# the method description
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print HFILE "extern struct kobjop_desc $mname\_desc;\n";
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# the method typedef
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my $prototype = "typedef $ret $mname\_t(";
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print HFILE &format_line("$prototype$arguments);",
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$line_width, ', ',
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',',' ' x length($prototype))
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. "\n";
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}
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if ($opt_c) {
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# Print out the method desc
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print CFILE "struct kobjop_desc $mname\_desc = {\n";
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print CFILE "\t0, (kobjop_t) $default\n";
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print CFILE "};\n\n";
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}
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if ($opt_h) {
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# Print out the method itself
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if (0) { # haven't chosen the format yet
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print HFILE "static __inline $ret $umname($varnames)\n";
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print HFILE "\t".join(";\n\t", @arguments).";\n";
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} else {
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my $prototype = "static __inline $ret $umname(";
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print HFILE &format_line("$prototype$arguments)",
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$line_width, ', ',
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',', ' ' x length($prototype)) . "\n";
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}
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print HFILE "{\n";
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print HFILE "\tkobjop_t _m;\n";
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if ($static) {
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print HFILE "\tKOBJOPLOOKUP($firstvar->ops,$mname);\n";
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} else {
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print HFILE "\tKOBJOPLOOKUP(((kobj_t)$firstvar)->ops,$mname);\n";
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}
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print HFILE "\t";
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if ($ret ne 'void') {
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print HFILE "return ";
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}
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print HFILE "(($mname\_t *) _m)($varnames);\n";
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print HFILE "}\n\n";
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}
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} else {
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warn $line
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if $opt_d;
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warn "$src:$lineno: Invalid line encountered";
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$error = 1;
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last LINE;
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}
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} # end LINE
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# print the final '#endif' in the header file
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#
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print HFILE "#endif /* _".$intname."_if_h_ */\n"
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if $opt_h;
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close SRC;
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close CFILE
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if $opt_c;
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close HFILE
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if $opt_h;
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my $rc;
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if (!$error) {
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if ($opt_c) {
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($rc = system("mv $ctmpname $cfilename"))
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and warn "mv $ctmpname $cfilename failed, $rc";
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}
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if ($opt_h) {
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($rc = system("mv $htmpname $hfilename"))
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and warn "mv $htmpname $hfilename failed, $rc";
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}
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} else {
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warn 'Output skipped';
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($rc = system("rm -f $htmpname $ctmpname"))
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and warn "rm -f $htmpname $ctmpname failed, $rc";
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$gerror = 1;
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}
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}
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exit $gerror;
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sub usage {
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die join("\n", @_,
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"usage: $0 [-d] [-p] [-l <nr>] [-c|-h] srcfile",
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"where -c produce only .c files",
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" -h produce only .h files",
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" -p use the path component in the source file for destination dir",
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" -l set line width for output files [80]",
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" -d switch on debugging")
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. "\n";
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}
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sub format_line {
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my ($line, $maxlength, $break, $new_end, $new_start) = @_;
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my $rline = "";
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my $i;
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while (length($line) > $maxlength
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and ($i = rindex $line, $break, $maxlength-length($new_end)) != -1) {
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$rline .= substr($line, 0, $i) . $new_end . "\n";
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$line = $new_start . substr($line, $i+length($break));
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}
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return $rline . $line;
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}
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# This routine is a crude replacement for one in File::Basename. We
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# cannot use any library code because it fouls up the Perl bootstrap
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# when we update a perl version. MarkM
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sub fileparse {
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my ($filename, @suffix) = @_;
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my ($dir, $name, $type, $i);
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$type = '';
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foreach $i (@suffix) {
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if ($filename =~ m|$i$|) {
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$filename =~ s|$i$||;
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$type = $i;
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}
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}
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if ($filename =~ m|/|) {
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$filename =~ m|([^/]*)$|;
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$name = $1;
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$dir = $filename;
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$dir =~ s|$name$||;
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} else {
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$dir = '';
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$name = $filename;
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}
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($name, $dir, $type);
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}
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