4 use File::Basename qw(&basename &dirname);
8 # List explicitly here the variables you want Configure to
9 # generate. Metaconfig only looks for shell variables, so you
10 # have to mention them as if they were shell variables, not
11 # %Config entries. Thus you write
13 # to ensure Configure will look for $Config{startperl}.
16 # This forces PL files to create target in same directory as PL file.
17 # This is so that make depend always knows where to find PL derivatives.
20 $file = basename($0, '.PL');
21 $file .= '.com' if $^O eq 'VMS';
23 open OUT,">$file" or die "Can't create $file: $!";
25 print "Extracting $file (with variable substitutions)\n";
27 # In this section, perl variables will be expanded during extraction.
28 # You can use $Config{...} to use Configure variables.
30 print OUT <<"!GROK!THIS!";
32 eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}'
33 if \$running_under_some_shell;
34 --\$running_under_some_shell;
37 # In the following, perl variables are not expanded during extraction.
39 print OUT <<'!NO!SUBS!';
41 # Version 2.0, Simon Cozens, Thu Mar 30 17:52:45 JST 2000
42 # Version 2.01, Tom Christiansen, Thu Mar 30 08:25:14 MST 2000
43 # Version 2.02, Simon Cozens, Sun Apr 16 01:53:36 JST 2000
44 # Version 2.03, Edward Peschko, Mon Feb 26 12:04:17 PST 2001
52 use Fcntl qw(:DEFAULT :flock);
53 use File::Temp qw(tempfile);
58 $SIG{INT} = sub { exit(); }; # exit gracefully and clean up after ourselves.
61 cc_harness check_read check_write checkopts_byte choose_backend
62 compile_byte compile_cstyle compile_module generate_code
63 grab_stash parse_argv sanity_check vprint yclept spawnit
65 sub opt(*); # imal quoting
69 our ($Options, $BinPerl, $Backend);
70 our ($Input => $Output);
73 our (@begin_output); # output from BEGIN {}, for testsuite
75 # eval { main(); 1 } or die;
85 _die("XXX: Not reached?");
88 #######################################################################
95 $Backend = 'Bytecode';
97 if (opt(S) && opt(c)) {
98 # die "$0: Do you want me to compile this or not?\n";
101 $Backend = 'CC' if opt(O);
107 vprint 0, "Compiling $Input";
109 $BinPerl = yclept(); # Calling convention for perl.
114 if ($Backend eq 'Bytecode') {
120 exit(0) if (!opt('r'));
124 vprint 0, "Running code";
125 run("$Output @ARGV");
129 # usage: vprint [level] msg args
134 } elsif ($_[0] =~ /^\d$/) {
137 # well, they forgot to use a number; means >0
141 $msg .= "\n" unless substr($msg, -1) eq "\n";
144 print "$0: $msg" if !opt('log');
145 print $logfh "$0: $msg" if opt('log');
153 # disallows using long arguments
154 # Getopt::Long::Configure("bundling");
156 Getopt::Long::Configure("no_ignore_case");
158 # no difference in exists and defined for %ENV; also, a "0"
159 # argument or a "" would not help cc, so skip
160 unshift @ARGV, split ' ', $ENV{PERLCC_OPTS} if $ENV{PERLCC_OPTS};
163 Getopt::Long::GetOptions( $Options,
164 'L:s', # lib directory
165 'I:s', # include directories (FOR C, NOT FOR PERL)
166 'o:s', # Output executable
167 'v:i', # Verbosity level
169 'r', # run resulting executable
170 'B', # Byte compiler backend
171 'O', # Optimised C backend
175 'r', # run the resulting executable
176 'T', # run the backend using perl -T
177 't', # run the backend using perl -t
178 'static', # Dirty hack to enable -shared/-static
179 'shared', # Create a shared library (--shared for compat.)
180 'log:s', # where to log compilation process information
181 'Wb:s', # pass (comma-sepearated) options to backend
182 'testsuite', # try to be nice to testsuite
187 if( opt(t) && opt(T) ) {
188 warn "Can't specify both -T and -t, -t ignored";
192 helpme() if opt(h); # And exit
194 $Output = opt(o) || ( is_win32 ? 'a.exe' : 'a.out' );
195 $Output = is_win32() ? $Output : relativize($Output);
196 $logfh = new FileHandle(">> " . opt('log')) if (opt('log'));
199 warn "$0: using -e 'code' as input file, ignoring @ARGV\n" if @ARGV;
200 # We don't use a temporary file here; why bother?
201 # XXX: this is not bullet proof -- spaces or quotes in name!
202 $Input = is_win32() ? # Quotes eaten by shell
206 $Input = shift @ARGV; # XXX: more files?
207 _usage_and_die("$0: No input file specified\n") unless $Input;
208 # DWIM modules. This is bad but necessary.
209 $Options->{shared}++ if $Input =~ /\.pm\z/;
210 warn "$0: using $Input as input file, ignoring @ARGV\n" if @ARGV;
220 return exists($Options->{$opt}) && ($Options->{$opt} || 0);
224 die "$0: Compiling to shared libraries is currently disabled\n";
228 my $command = "$BinPerl -MO=Bytecode,-H,-o$Output $Input";
229 $Input =~ s/^-e.*$/-e/;
231 my ($output_r, $error_r) = spawnit($command);
233 if (@$error_r && $? != 0) {
234 _die("$0: $Input did not compile:\n@$error_r\n");
236 my @error = grep { !/^$Input syntax OK$/o } @$error_r;
237 warn "$0: Unexpected compiler output:\n@error" if @error;
240 chmod 0777 & ~umask, $Output or _die("can't chmod $Output: $!");
245 my $stash = grab_stash();
246 my $taint = opt(T) ? '-T' :
249 # What are we going to call our output C file?
253 my $addoptions = opt(Wb);
256 $addoptions .= ',' if $addoptions !~ m/,$/;
259 if (opt(testsuite)) {
260 my $bo = join '', @begin_output;
261 $bo =~ s/\\/\\\\\\\\/gs;
264 # don't look at that: it hurts
265 $testsuite = q{-fuse-script-name,-fsave-data,-fsave-sig-hash,}.
266 qq[-e"print q{$bo}",] .
267 q{-e"open(Test::Builder::TESTOUT\054 '>&STDOUT') or die $!",} .
268 q{-e"open(Test::Builder::TESTERR\054 '>&STDERR') or die $!",};
270 if (opt(S) || opt(c)) {
271 # We need to keep it.
276 # File off extension if present
277 # hold on: plx is executable; also, careful of ordering!
278 $cfile =~ s/\.(?:p(?:lx|l|h)|m)\z//i;
280 $cfile = $Output if opt(c) && $Output =~ /\.c\z/i;
284 # Don't need to keep it, be safe with a tempfile.
286 ($cfh, $cfile) = tempfile("pccXXXXX", SUFFIX => ".c");
287 close $cfh; # See comment just below
289 vprint 1, "Writing C on $cfile";
291 my $max_line_len = '';
292 if ($^O eq 'MSWin32' && $Config{cc} =~ /^cl/i) {
293 $max_line_len = '-l2000,';
296 # This has to do the write itself, so we can't keep a lock. Life
298 my $command = "$BinPerl $taint -MO=$Backend,$addoptions$testsuite$max_line_len$stash,-o$cfile $Input";
299 vprint 1, "Compiling...";
300 vprint 1, "Calling $command";
302 my ($output_r, $error_r) = spawnit($command);
303 my @output = @$output_r;
304 my @error = @$error_r;
306 if (@error && $? != 0) {
307 _die("$0: $Input did not compile, which can't happen:\n@error\n");
311 cc_harness_msvc($cfile,$stash) :
312 cc_harness($cfile,$stash) unless opt(c);
315 vprint 2, "unlinking $cfile";
316 unlink $cfile or _die("can't unlink $cfile: $!");
320 sub cc_harness_msvc {
321 my ($cfile,$stash)=@_;
322 use ExtUtils::Embed ();
323 my $obj = "${Output}.obj";
324 my $compile = ExtUtils::Embed::ccopts." -c -Fo$obj $cfile ";
325 my $link = "-out:$Output $obj";
326 $compile .= " -I".$_ for split /\s+/, opt(I);
327 $link .= " -libpath:".$_ for split /\s+/, opt(L);
328 my @mods = split /-?u /, $stash;
329 $link .= " ".ExtUtils::Embed::ldopts("-std", \@mods);
330 $link .= " perl57.lib kernel32.lib msvcrt.lib";
331 vprint 3, "running $Config{cc} $compile";
332 system("$Config{cc} $compile");
333 vprint 3, "running $Config{ld} $link";
334 system("$Config{ld} $link");
338 my ($cfile,$stash)=@_;
339 use ExtUtils::Embed ();
340 my $command = ExtUtils::Embed::ccopts." -o $Output $cfile ";
341 $command .= " -I".$_ for split /\s+/, opt(I);
342 $command .= " -L".$_ for split /\s+/, opt(L);
343 my @mods = split /-?u /, $stash;
344 $command .= " ".ExtUtils::Embed::ldopts("-std", \@mods);
345 $command .= " -lperl";
346 vprint 3, "running $Config{cc} $command";
347 system("$Config{cc} $command");
350 # Where Perl is, and which include path to give it.
352 my $command = "$^X ";
354 # DWIM the -I to be Perl, not C, include directories.
355 if (opt(I) && $Backend eq "Bytecode") {
356 for (split /\s+/, opt(I)) {
360 warn "$0: Include directory $_ not found, skipping\n";
365 $command .= "-I$_ " for @INC;
369 # Use B::Stash to find additional modules and stuff.
374 warn "already called get_stash once" if $_stash;
376 my $taint = opt(T) ? '-T' :
378 my $command = "$BinPerl $taint -MB::Stash -c $Input";
379 # Filename here is perfectly sanitised.
380 vprint 3, "Calling $command\n";
382 my ($stash_r, $error_r) = spawnit($command);
383 my @stash = @$stash_r;
384 my @error = @$error_r;
386 if (@error && $? != 0) {
387 _die("$0: $Input did not compile:\n@error\n");
390 # band-aid for modules with noisy BEGIN {}
391 foreach my $i ( @stash ) {
392 $i =~ m/-u(?:[\w:]+|\<none\>)$/ and $stash[0] = $i and next;
393 push @begin_output, $i;
396 $stash[0] =~ s/,-u\<none\>//;
397 $stash[0] =~ s/^.*?-u/-u/s;
398 vprint 2, "Stash: ", join " ", split /,?-u/, $stash[0];
400 return $_stash = $stash[0];
405 # Check the consistency of options if -B is selected.
406 # To wit, (-B|-O) ==> no -shared, no -S, no -c
409 _die("$0: Please choose one of either -B and -O.\n") if opt(O);
412 warn "$0: Will not create a shared library for bytecode\n";
413 delete $Options->{shared};
416 for my $o ( qw[c S] ) {
418 warn "$0: Compiling to bytecode is a one-pass process--",
420 delete $Options->{$o};
426 # Check the input and output files make sense, are read/writeable.
428 if ($Input eq $Output) {
429 if ($Input eq 'a.out') {
430 _die("$0: Compiling a.out is probably not what you want to do.\n");
431 # You fully deserve what you get now. No you *don't*. typos happen.
433 warn "$0: Will not write output on top of input file, ",
434 "compiling to a.out instead\n";
443 _die("$0: Input file $file is a directory, not a file\n") if -d _;
445 _die("$0: Input file $file was not found\n");
447 _die("$0: Cannot read input file $file: $!\n");
451 # XXX: die? don't try this on /dev/tty
452 warn "$0: WARNING: input $file is not a plain file\n";
459 _die("$0: Cannot write on $file, is a directory\n");
462 _die("$0: Cannot write on $file: $!\n") unless -w _;
465 _die("$0: Cannot write in this directory: $!\n");
472 warn "$0: Binary `$file' sure doesn't smell like perl source!\n";
473 print "Checking file type... ";
474 system("file", $file);
475 _die("Please try a perlier file!\n");
478 open(my $handle, "<", $file) or _die("XXX: can't open $file: $!");
479 local $_ = <$handle>;
480 if (/^#!/ && !/perl/) {
481 _die("$0: $file is a ", /^#!\s*(\S+)/, " script, not perl\n");
486 # File spawning and error collecting
488 my ($command) = shift;
491 (undef, $errname) = tempfile("pccXXXXX");
493 open (S_OUT, "$command 2>$errname |")
494 or _die("$0: Couldn't spawn the compiler.\n");
497 open (S_ERROR, $errname) or _die("$0: Couldn't read the error file.\n");
501 unlink $errname or _die("$0: Can't unlink error file $errname");
502 return (\@output, \@error);
506 print "perlcc compiler frontend, version $VERSION\n\n";
517 return() if ($args =~ m"^[/\\]");
522 $logfh->print(@_) if opt('log');
524 exit(); # should die eventually. However, needed so that a 'make compile'
525 # can compile all the way through to the end for standard dist.
531 $0 [-o executable] [-r] [-O|-B|-c|-S] [-log log] [source[.pl] | -e oneliner]
538 print interruptrun(@commands) if (!opt('log'));
539 $logfh->print(interruptrun(@commands)) if (opt('log'));
546 my $command = join('', @commands);
548 my $pid = open(FD, "$command |");
551 local($SIG{HUP}) = sub { kill 9, $pid; exit };
552 local($SIG{INT}) = sub { kill 9, $pid; exit };
555 ($ENV{PERLCC_TIMEOUT} &&
556 $Config{'osname'} ne 'MSWin32' &&
557 $command =~ m"(^|\s)perlcc\s");
561 local($SIG{ALRM}) = sub { die "INFINITE LOOP"; };
562 alarm($ENV{PERLCC_TIMEOUT}) if ($needalarm);
563 $text = join('', <FD>);
564 alarm(0) if ($needalarm);
569 eval { kill 'HUP', $pid };
570 vprint 0, "SYSTEM TIMEOUT (infinite loop?)\n";
577 sub is_win32() { $^O =~ m/^MSWin/ }
578 sub is_msvc() { is_win32 && $Config{cc} =~ m/^cl/i }
581 unlink $cfile if ($cfile && !opt(S) && !opt(c));
588 perlcc - generate executables from Perl programs
592 $ perlcc hello # Compiles into executable 'a.out'
593 $ perlcc -o hello hello.pl # Compiles into executable 'hello'
595 $ perlcc -O file # Compiles using the optimised C backend
596 $ perlcc -B file # Compiles using the bytecode backend
598 $ perlcc -c file # Creates a C file, 'file.c'
599 $ perlcc -S -o hello file # Creates a C file, 'file.c',
600 # then compiles it to executable 'hello'
601 $ perlcc -c out.c file # Creates a C file, 'out.c' from 'file'
603 $ perlcc -e 'print q//' # Compiles a one-liner into 'a.out'
604 $ perlcc -c -e 'print q//' # Creates a C file 'a.out.c'
606 $ perlcc -I /foo hello # extra headers (notice the space after -I)
607 $ perlcc -L /foo hello # extra libraries (notice the space after -L)
609 $ perlcc -r hello # compiles 'hello' into 'a.out', runs 'a.out'.
610 $ perlcc -r hello a b c # compiles 'hello' into 'a.out', runs 'a.out'.
611 # with arguments 'a b c'
613 $ perlcc hello -log c # compiles 'hello' into 'a.out' logs compile
618 F<perlcc> creates standalone executables from Perl programs, using the
619 code generators provided by the L<B> module. At present, you may
620 either create executable Perl bytecode, using the C<-B> option, or
621 generate and compile C files using the standard and 'optimised' C
624 The code generated in this way is not guaranteed to work. The whole
625 codegen suite (C<perlcc> included) should be considered B<very>
626 experimental. Use for production purposes is strongly discouraged.
632 =item -LI<library directories>
634 Adds the given directories to the library search path when C code is
635 passed to your C compiler.
637 =item -II<include directories>
639 Adds the given directories to the include file search path when C code is
640 passed to your C compiler; when using the Perl bytecode option, adds the
641 given directories to Perl's include path.
643 =item -o I<output file name>
645 Specifies the file name for the final compiled executable.
647 =item -c I<C file name>
649 Create C code only; do not compile to a standalone binary.
651 =item -e I<perl code>
653 Compile a one-liner, much the same as C<perl -e '...'>
657 Do not delete generated C code after compilation.
661 Use the Perl bytecode code generator.
665 Use the 'optimised' C code generator. This is more experimental than
666 everything else put together, and the code created is not guaranteed to
667 compile in finite time and memory, or indeed, at all.
671 Increase verbosity of output; can be repeated for more verbose output.
675 Run the resulting compiled script after compiling it.
679 Log the output of compiling to a file rather than to stdout.
687 close OUT or die "Can't close $file: $!";
688 chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
689 exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';