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1 | # C.pm |
2 | # | |
3 | # Copyright (c) 1996, 1997, 1998 Malcolm Beattie | |
4 | # | |
5 | # You may distribute under the terms of either the GNU General Public | |
6 | # License or the Artistic License, as specified in the README file. | |
7 | # | |
8 | ||
9 | package B::C; | |
10 | ||
11 | our $VERSION = '1.04_01'; | |
12 | ||
13 | package B::C::Section; | |
14 | ||
15 | use B (); | |
16 | use base B::Section; | |
17 | ||
18 | sub new | |
19 | { | |
20 | my $class = shift; | |
21 | my $o = $class->SUPER::new(@_); | |
22 | push @$o, { values => [] }; | |
23 | return $o; | |
24 | } | |
25 | ||
26 | sub add | |
27 | { | |
28 | my $section = shift; | |
29 | push(@{$section->[-1]{values}},@_); | |
30 | } | |
31 | ||
32 | sub index | |
33 | { | |
34 | my $section = shift; | |
35 | return scalar(@{$section->[-1]{values}})-1; | |
36 | } | |
37 | ||
38 | sub output | |
39 | { | |
40 | my ($section, $fh, $format) = @_; | |
41 | my $sym = $section->symtable || {}; | |
42 | my $default = $section->default; | |
43 | my $i; | |
44 | foreach (@{$section->[-1]{values}}) | |
45 | { | |
46 | s{(s\\_[0-9a-f]+)}{ exists($sym->{$1}) ? $sym->{$1} : $default; }ge; | |
47 | printf $fh $format, $_, $i; | |
48 | ++$i; | |
49 | } | |
50 | } | |
51 | ||
52 | package B::C::InitSection; | |
53 | ||
54 | # avoid use vars | |
55 | @B::C::InitSection::ISA = qw(B::C::Section); | |
56 | ||
57 | sub new { | |
58 | my $class = shift; | |
59 | my $max_lines = 10000; #pop; | |
60 | my $section = $class->SUPER::new( @_ ); | |
61 | ||
62 | $section->[-1]{evals} = []; | |
63 | $section->[-1]{chunks} = []; | |
64 | $section->[-1]{nosplit} = 0; | |
65 | $section->[-1]{current} = []; | |
66 | $section->[-1]{count} = 0; | |
67 | $section->[-1]{max_lines} = $max_lines; | |
68 | ||
69 | return $section; | |
70 | } | |
71 | ||
72 | sub split { | |
73 | my $section = shift; | |
74 | $section->[-1]{nosplit}-- | |
75 | if $section->[-1]{nosplit} > 0; | |
76 | } | |
77 | ||
78 | sub no_split { | |
79 | shift->[-1]{nosplit}++; | |
80 | } | |
81 | ||
82 | sub inc_count { | |
83 | my $section = shift; | |
84 | ||
85 | $section->[-1]{count} += $_[0]; | |
86 | # this is cheating | |
87 | $section->add(); | |
88 | } | |
89 | ||
90 | sub add { | |
91 | my $section = shift->[-1]; | |
92 | my $current = $section->{current}; | |
93 | my $nosplit = $section->{nosplit}; | |
94 | ||
95 | push @$current, @_; | |
96 | $section->{count} += scalar(@_); | |
97 | if( !$nosplit && $section->{count} >= $section->{max_lines} ) { | |
98 | push @{$section->{chunks}}, $current; | |
99 | $section->{current} = []; | |
100 | $section->{count} = 0; | |
101 | } | |
102 | } | |
103 | ||
104 | sub add_eval { | |
105 | my $section = shift; | |
106 | my @strings = @_; | |
107 | ||
108 | foreach my $i ( @strings ) { | |
109 | $i =~ s/\"/\\\"/g; | |
110 | } | |
111 | push @{$section->[-1]{evals}}, @strings; | |
112 | } | |
113 | ||
114 | sub output { | |
115 | my( $section, $fh, $format, $init_name ) = @_; | |
116 | my $sym = $section->symtable || {}; | |
117 | my $default = $section->default; | |
118 | push @{$section->[-1]{chunks}}, $section->[-1]{current}; | |
119 | ||
120 | my $name = "aaaa"; | |
121 | foreach my $i ( @{$section->[-1]{chunks}} ) { | |
122 | print $fh <<"EOT"; | |
123 | static int perl_init_${name}() | |
124 | { | |
125 | dTARG; | |
126 | dSP; | |
127 | EOT | |
128 | foreach my $j ( @$i ) { | |
129 | $j =~ s{(s\\_[0-9a-f]+)} | |
130 | { exists($sym->{$1}) ? $sym->{$1} : $default; }ge; | |
131 | print $fh "\t$j\n"; | |
132 | } | |
133 | print $fh "\treturn 0;\n}\n"; | |
134 | ||
135 | $section->SUPER::add( "perl_init_${name}();" ); | |
136 | ++$name; | |
137 | } | |
138 | foreach my $i ( @{$section->[-1]{evals}} ) { | |
139 | $section->SUPER::add( sprintf q{eval_pv("%s",1);}, $i ); | |
140 | } | |
141 | ||
142 | print $fh <<"EOT"; | |
143 | static int ${init_name}() | |
144 | { | |
145 | dTARG; | |
146 | dSP; | |
147 | EOT | |
148 | $section->SUPER::output( $fh, $format ); | |
149 | print $fh "\treturn 0;\n}\n"; | |
150 | } | |
151 | ||
152 | ||
153 | package B::C; | |
154 | use Exporter (); | |
155 | our %REGEXP; | |
156 | ||
157 | { # block necessary for caller to work | |
158 | my $caller = caller; | |
159 | if( $caller eq 'O' ) { | |
160 | require XSLoader; | |
161 | XSLoader::load( 'B::C' ); | |
162 | } | |
163 | } | |
164 | ||
165 | @ISA = qw(Exporter); | |
166 | @EXPORT_OK = qw(output_all output_boilerplate output_main mark_unused | |
167 | init_sections set_callback save_unused_subs objsym save_context); | |
168 | ||
169 | use B qw(minus_c sv_undef walkoptree walksymtable main_root main_start peekop | |
170 | class cstring cchar svref_2object compile_stats comppadlist hash | |
171 | threadsv_names main_cv init_av end_av regex_padav opnumber amagic_generation | |
172 | HEf_SVKEY SVf_POK SVf_ROK CVf_CONST); | |
173 | use B::Asmdata qw(@specialsv_name); | |
174 | ||
175 | use FileHandle; | |
176 | use Carp; | |
177 | use strict; | |
178 | use Config; | |
179 | ||
180 | my $hv_index = 0; | |
181 | my $gv_index = 0; | |
182 | my $re_index = 0; | |
183 | my $pv_index = 0; | |
184 | my $cv_index = 0; | |
185 | my $anonsub_index = 0; | |
186 | my $initsub_index = 0; | |
187 | ||
188 | my %symtable; | |
189 | my %xsub; | |
190 | my $warn_undefined_syms; | |
191 | my $verbose; | |
192 | my %unused_sub_packages; | |
193 | my $use_xsloader; | |
194 | my $nullop_count; | |
195 | my $pv_copy_on_grow = 0; | |
196 | my $optimize_ppaddr = 0; | |
197 | my $optimize_warn_sv = 0; | |
198 | my $use_perl_script_name = 0; | |
199 | my $save_data_fh = 0; | |
200 | my $save_sig = 0; | |
201 | my ($debug_cops, $debug_av, $debug_cv, $debug_mg); | |
202 | my $max_string_len; | |
203 | ||
204 | my $ithreads = $Config{useithreads} eq 'define'; | |
205 | ||
206 | my @threadsv_names; | |
207 | BEGIN { | |
208 | @threadsv_names = threadsv_names(); | |
209 | } | |
210 | ||
211 | # Code sections | |
212 | my ($init, $decl, $symsect, $binopsect, $condopsect, $copsect, | |
213 | $padopsect, $listopsect, $logopsect, $loopsect, $opsect, $pmopsect, | |
214 | $pvopsect, $svopsect, $unopsect, $svsect, $xpvsect, $xpvavsect, | |
215 | $xpvhvsect, $xpvcvsect, $xpvivsect, $xpvnvsect, $xpvmgsect, $xpvlvsect, | |
216 | $xrvsect, $xpvbmsect, $xpviosect ); | |
217 | my @op_sections = \( $binopsect, $condopsect, $copsect, $padopsect, $listopsect, | |
218 | $logopsect, $loopsect, $opsect, $pmopsect, $pvopsect, $svopsect, | |
219 | $unopsect ); | |
220 | ||
221 | sub walk_and_save_optree; | |
222 | my $saveoptree_callback = \&walk_and_save_optree; | |
223 | sub set_callback { $saveoptree_callback = shift } | |
224 | sub saveoptree { &$saveoptree_callback(@_) } | |
225 | ||
226 | sub walk_and_save_optree { | |
227 | my ($name, $root, $start) = @_; | |
228 | walkoptree($root, "save"); | |
229 | return objsym($start); | |
230 | } | |
231 | ||
232 | # Look this up here so we can do just a number compare | |
233 | # rather than looking up the name of every BASEOP in B::OP | |
234 | my $OP_THREADSV = opnumber('threadsv'); | |
235 | ||
236 | sub savesym { | |
237 | my ($obj, $value) = @_; | |
238 | my $sym = sprintf("s\\_%x", $$obj); | |
239 | $symtable{$sym} = $value; | |
240 | } | |
241 | ||
242 | sub objsym { | |
243 | my $obj = shift; | |
244 | return $symtable{sprintf("s\\_%x", $$obj)}; | |
245 | } | |
246 | ||
247 | sub getsym { | |
248 | my $sym = shift; | |
249 | my $value; | |
250 | ||
251 | return 0 if $sym eq "sym_0"; # special case | |
252 | $value = $symtable{$sym}; | |
253 | if (defined($value)) { | |
254 | return $value; | |
255 | } else { | |
256 | warn "warning: undefined symbol $sym\n" if $warn_undefined_syms; | |
257 | return "UNUSED"; | |
258 | } | |
259 | } | |
260 | ||
261 | sub savere { | |
262 | my $re = shift; | |
263 | my $sym = sprintf("re%d", $re_index++); | |
264 | $decl->add(sprintf("static char *$sym = %s;", cstring($re))); | |
265 | ||
266 | return ($sym,length(pack "a*",$re)); | |
267 | } | |
268 | ||
269 | sub savepv { | |
270 | my $pv = pack "a*", shift; | |
271 | my $pvsym = 0; | |
272 | my $pvmax = 0; | |
273 | if ($pv_copy_on_grow) { | |
274 | $pvsym = sprintf("pv%d", $pv_index++); | |
275 | ||
276 | if( defined $max_string_len && length($pv) > $max_string_len ) { | |
277 | my $chars = join ', ', map { cchar $_ } split //, $pv; | |
278 | $decl->add(sprintf("static char %s[] = { %s };", $pvsym, $chars)); | |
279 | } | |
280 | else { | |
281 | my $cstring = cstring($pv); | |
282 | if ($cstring ne "0") { # sic | |
283 | $decl->add(sprintf("static char %s[] = %s;", | |
284 | $pvsym, $cstring)); | |
285 | } | |
286 | } | |
287 | } else { | |
288 | $pvmax = length(pack "a*",$pv) + 1; | |
289 | } | |
290 | return ($pvsym, $pvmax); | |
291 | } | |
292 | ||
293 | sub save_rv { | |
294 | my $sv = shift; | |
295 | # confess "Can't save RV: not ROK" unless $sv->FLAGS & SVf_ROK; | |
296 | my $rv = $sv->RV->save; | |
297 | ||
298 | $rv =~ s/^\(([AGHS]V|IO)\s*\*\)\s*(\&sv_list.*)$/$2/; | |
299 | ||
300 | return $rv; | |
301 | } | |
302 | ||
303 | # savesym, pvmax, len, pv | |
304 | sub save_pv_or_rv { | |
305 | my $sv = shift; | |
306 | ||
307 | my $rok = $sv->FLAGS & SVf_ROK; | |
308 | my $pok = $sv->FLAGS & SVf_POK; | |
309 | my( $len, $pvmax, $savesym, $pv ) = ( 0, 0 ); | |
310 | if( $rok ) { | |
311 | $savesym = '(char*)' . save_rv( $sv ); | |
312 | } | |
313 | else { | |
314 | $pv = $pok ? (pack "a*", $sv->PV) : undef; | |
315 | $len = $pok ? length($pv) : 0; | |
316 | ($savesym, $pvmax) = $pok ? savepv($pv) : ( 'NULL', 0 ); | |
317 | } | |
318 | ||
319 | return ( $savesym, $pvmax, $len, $pv ); | |
320 | } | |
321 | ||
322 | # see also init_op_ppaddr below; initializes the ppaddt to the | |
323 | # OpTYPE; init_op_ppaddr iterates over the ops and sets | |
324 | # op_ppaddr to PL_ppaddr[op_ppaddr]; this avoids an explicit assignmente | |
325 | # in perl_init ( ~10 bytes/op with GCC/i386 ) | |
326 | sub B::OP::fake_ppaddr { | |
327 | return $optimize_ppaddr ? | |
328 | sprintf("INT2PTR(void*,OP_%s)", uc( $_[0]->name ) ) : | |
329 | 'NULL'; | |
330 | } | |
331 | ||
332 | # This pair is needed becase B::FAKEOP::save doesn't scalar dereference | |
333 | # $op->next and $op->sibling | |
334 | ||
335 | { | |
336 | # For 5.9 the hard coded text is the values for op_opt and op_static in each | |
337 | # op. The value of op_opt is irrelevant, and the value of op_static needs to | |
338 | # be 1 to tell op_free that this is a statically defined op and that is | |
339 | # shouldn't be freed. | |
340 | ||
341 | # For 5.8: | |
342 | # Current workaround/fix for op_free() trying to free statically | |
343 | # defined OPs is to set op_seq = -1 and check for that in op_free(). | |
344 | # Instead of hardwiring -1 in place of $op->seq, we use $op_seq | |
345 | # so that it can be changed back easily if necessary. In fact, to | |
346 | # stop compilers from moaning about a U16 being initialised with an | |
347 | # uncast -1 (the printf format is %d so we can't tweak it), we have | |
348 | # to "know" that op_seq is a U16 and use 65535. Ugh. | |
349 | ||
350 | my $static = $] > 5.009 ? '0, 1, 0' : sprintf "%u", 65535; | |
351 | sub B::OP::_save_common_middle { | |
352 | my $op = shift; | |
353 | sprintf ("%s, %u, %u, $static, 0x%x, 0x%x", | |
354 | $op->fake_ppaddr, $op->targ, $op->type, $op->flags, $op->private); | |
355 | } | |
356 | } | |
357 | ||
358 | sub B::OP::_save_common { | |
359 | my $op = shift; | |
360 | return sprintf("s\\_%x, s\\_%x, %s", | |
361 | ${$op->next}, ${$op->sibling}, $op->_save_common_middle); | |
362 | } | |
363 | ||
364 | sub B::OP::save { | |
365 | my ($op, $level) = @_; | |
366 | my $sym = objsym($op); | |
367 | return $sym if defined $sym; | |
368 | my $type = $op->type; | |
369 | $nullop_count++ unless $type; | |
370 | if ($type == $OP_THREADSV) { | |
371 | # saves looking up ppaddr but it's a bit naughty to hard code this | |
372 | $init->add(sprintf("(void)find_threadsv(%s);", | |
373 | cstring($threadsv_names[$op->targ]))); | |
374 | } | |
375 | $opsect->add($op->_save_common); | |
376 | my $ix = $opsect->index; | |
377 | $init->add(sprintf("op_list[$ix].op_ppaddr = %s;", $op->ppaddr)) | |
378 | unless $optimize_ppaddr; | |
379 | savesym($op, "&op_list[$ix]"); | |
380 | } | |
381 | ||
382 | sub B::FAKEOP::new { | |
383 | my ($class, %objdata) = @_; | |
384 | bless \%objdata, $class; | |
385 | } | |
386 | ||
387 | sub B::FAKEOP::save { | |
388 | my ($op, $level) = @_; | |
389 | $opsect->add(sprintf("%s, %s, %s", | |
390 | $op->next, $op->sibling, $op->_save_common_middle)); | |
391 | my $ix = $opsect->index; | |
392 | $init->add(sprintf("op_list[$ix].op_ppaddr = %s;", $op->ppaddr)) | |
393 | unless $optimize_ppaddr; | |
394 | return "&op_list[$ix]"; | |
395 | } | |
396 | ||
397 | sub B::FAKEOP::next { $_[0]->{"next"} || 0 } | |
398 | sub B::FAKEOP::type { $_[0]->{type} || 0} | |
399 | sub B::FAKEOP::sibling { $_[0]->{sibling} || 0 } | |
400 | sub B::FAKEOP::ppaddr { $_[0]->{ppaddr} || 0 } | |
401 | sub B::FAKEOP::targ { $_[0]->{targ} || 0 } | |
402 | sub B::FAKEOP::flags { $_[0]->{flags} || 0 } | |
403 | sub B::FAKEOP::private { $_[0]->{private} || 0 } | |
404 | ||
405 | sub B::UNOP::save { | |
406 | my ($op, $level) = @_; | |
407 | my $sym = objsym($op); | |
408 | return $sym if defined $sym; | |
409 | $unopsect->add(sprintf("%s, s\\_%x", $op->_save_common, ${$op->first})); | |
410 | my $ix = $unopsect->index; | |
411 | $init->add(sprintf("unop_list[$ix].op_ppaddr = %s;", $op->ppaddr)) | |
412 | unless $optimize_ppaddr; | |
413 | savesym($op, "(OP*)&unop_list[$ix]"); | |
414 | } | |
415 | ||
416 | sub B::BINOP::save { | |
417 | my ($op, $level) = @_; | |
418 | my $sym = objsym($op); | |
419 | return $sym if defined $sym; | |
420 | $binopsect->add(sprintf("%s, s\\_%x, s\\_%x", | |
421 | $op->_save_common, ${$op->first}, ${$op->last})); | |
422 | my $ix = $binopsect->index; | |
423 | $init->add(sprintf("binop_list[$ix].op_ppaddr = %s;", $op->ppaddr)) | |
424 | unless $optimize_ppaddr; | |
425 | savesym($op, "(OP*)&binop_list[$ix]"); | |
426 | } | |
427 | ||
428 | sub B::LISTOP::save { | |
429 | my ($op, $level) = @_; | |
430 | my $sym = objsym($op); | |
431 | return $sym if defined $sym; | |
432 | $listopsect->add(sprintf("%s, s\\_%x, s\\_%x", | |
433 | $op->_save_common, ${$op->first}, ${$op->last})); | |
434 | my $ix = $listopsect->index; | |
435 | $init->add(sprintf("listop_list[$ix].op_ppaddr = %s;", $op->ppaddr)) | |
436 | unless $optimize_ppaddr; | |
437 | savesym($op, "(OP*)&listop_list[$ix]"); | |
438 | } | |
439 | ||
440 | sub B::LOGOP::save { | |
441 | my ($op, $level) = @_; | |
442 | my $sym = objsym($op); | |
443 | return $sym if defined $sym; | |
444 | $logopsect->add(sprintf("%s, s\\_%x, s\\_%x", | |
445 | $op->_save_common, ${$op->first}, ${$op->other})); | |
446 | my $ix = $logopsect->index; | |
447 | $init->add(sprintf("logop_list[$ix].op_ppaddr = %s;", $op->ppaddr)) | |
448 | unless $optimize_ppaddr; | |
449 | savesym($op, "(OP*)&logop_list[$ix]"); | |
450 | } | |
451 | ||
452 | sub B::LOOP::save { | |
453 | my ($op, $level) = @_; | |
454 | my $sym = objsym($op); | |
455 | return $sym if defined $sym; | |
456 | #warn sprintf("LOOP: redoop %s, nextop %s, lastop %s\n", | |
457 | # peekop($op->redoop), peekop($op->nextop), | |
458 | # peekop($op->lastop)); # debug | |
459 | $loopsect->add(sprintf("%s, s\\_%x, s\\_%x, s\\_%x, s\\_%x, s\\_%x", | |
460 | $op->_save_common, ${$op->first}, ${$op->last}, | |
461 | ${$op->redoop}, ${$op->nextop}, | |
462 | ${$op->lastop})); | |
463 | my $ix = $loopsect->index; | |
464 | $init->add(sprintf("loop_list[$ix].op_ppaddr = %s;", $op->ppaddr)) | |
465 | unless $optimize_ppaddr; | |
466 | savesym($op, "(OP*)&loop_list[$ix]"); | |
467 | } | |
468 | ||
469 | sub B::PVOP::save { | |
470 | my ($op, $level) = @_; | |
471 | my $sym = objsym($op); | |
472 | return $sym if defined $sym; | |
473 | $pvopsect->add(sprintf("%s, %s", $op->_save_common, cstring($op->pv))); | |
474 | my $ix = $pvopsect->index; | |
475 | $init->add(sprintf("pvop_list[$ix].op_ppaddr = %s;", $op->ppaddr)) | |
476 | unless $optimize_ppaddr; | |
477 | savesym($op, "(OP*)&pvop_list[$ix]"); | |
478 | } | |
479 | ||
480 | sub B::SVOP::save { | |
481 | my ($op, $level) = @_; | |
482 | my $sym = objsym($op); | |
483 | return $sym if defined $sym; | |
484 | my $sv = $op->sv; | |
485 | my $svsym = '(SV*)' . $sv->save; | |
486 | my $is_const_addr = $svsym =~ m/Null|\&/; | |
487 | $svopsect->add(sprintf("%s, %s", $op->_save_common, | |
488 | ( $is_const_addr ? $svsym : 'Nullsv' ))); | |
489 | my $ix = $svopsect->index; | |
490 | $init->add(sprintf("svop_list[$ix].op_ppaddr = %s;", $op->ppaddr)) | |
491 | unless $optimize_ppaddr; | |
492 | $init->add("svop_list[$ix].op_sv = $svsym;") | |
493 | unless $is_const_addr; | |
494 | savesym($op, "(OP*)&svop_list[$ix]"); | |
495 | } | |
496 | ||
497 | sub B::PADOP::save { | |
498 | my ($op, $level) = @_; | |
499 | my $sym = objsym($op); | |
500 | return $sym if defined $sym; | |
501 | $padopsect->add(sprintf("%s, %d", | |
502 | $op->_save_common, $op->padix)); | |
503 | my $ix = $padopsect->index; | |
504 | $init->add(sprintf("padop_list[$ix].op_ppaddr = %s;", $op->ppaddr)) | |
505 | unless $optimize_ppaddr; | |
506 | # $init->add(sprintf("padop_list[$ix].op_padix = %ld;", $op->padix)); | |
507 | savesym($op, "(OP*)&padop_list[$ix]"); | |
508 | } | |
509 | ||
510 | sub B::COP::save { | |
511 | my ($op, $level) = @_; | |
512 | my $sym = objsym($op); | |
513 | return $sym if defined $sym; | |
514 | warn sprintf("COP: line %d file %s\n", $op->line, $op->file) | |
515 | if $debug_cops; | |
516 | # shameless cut'n'paste from B::Deparse | |
517 | my $warn_sv; | |
518 | my $warnings = $op->warnings; | |
519 | my $is_special = $warnings->isa("B::SPECIAL"); | |
520 | if ($is_special && $$warnings == 4) { | |
521 | # use warnings 'all'; | |
522 | $warn_sv = $optimize_warn_sv ? | |
523 | 'INT2PTR(SV*,1)' : | |
524 | 'pWARN_ALL'; | |
525 | } | |
526 | elsif ($is_special && $$warnings == 5) { | |
527 | # no warnings 'all'; | |
528 | $warn_sv = $optimize_warn_sv ? | |
529 | 'INT2PTR(SV*,2)' : | |
530 | 'pWARN_NONE'; | |
531 | } | |
532 | elsif ($is_special) { | |
533 | # use warnings; | |
534 | $warn_sv = $optimize_warn_sv ? | |
535 | 'INT2PTR(SV*,3)' : | |
536 | 'pWARN_STD'; | |
537 | } | |
538 | else { | |
539 | # something else | |
540 | $warn_sv = $warnings->save; | |
541 | } | |
542 | ||
543 | $copsect->add(sprintf("%s, %s, NULL, NULL, %u, %d, %u, %s", | |
544 | $op->_save_common, cstring($op->label), $op->cop_seq, | |
545 | $op->arybase, $op->line, | |
546 | ( $optimize_warn_sv ? $warn_sv : 'NULL' ))); | |
547 | my $ix = $copsect->index; | |
548 | $init->add(sprintf("cop_list[$ix].op_ppaddr = %s;", $op->ppaddr)) | |
549 | unless $optimize_ppaddr; | |
550 | $init->add(sprintf("cop_list[$ix].cop_warnings = %s;", $warn_sv )) | |
551 | unless $optimize_warn_sv; | |
552 | $init->add(sprintf("CopFILE_set(&cop_list[$ix], %s);", cstring($op->file)), | |
553 | sprintf("CopSTASHPV_set(&cop_list[$ix], %s);", cstring($op->stashpv))); | |
554 | ||
555 | savesym($op, "(OP*)&cop_list[$ix]"); | |
556 | } | |
557 | ||
558 | sub B::PMOP::save { | |
559 | my ($op, $level) = @_; | |
560 | my $sym = objsym($op); | |
561 | return $sym if defined $sym; | |
562 | my $replroot = $op->pmreplroot; | |
563 | my $replstart = $op->pmreplstart; | |
564 | my $replrootfield; | |
565 | my $replstartfield = sprintf("s\\_%x", $$replstart); | |
566 | my $gvsym; | |
567 | my $ppaddr = $op->ppaddr; | |
568 | # under ithreads, OP_PUSHRE.op_replroot is an integer | |
569 | $replrootfield = sprintf("s\\_%x", $$replroot) if ref $replroot; | |
570 | if($ithreads && $op->name eq "pushre") { | |
571 | $replrootfield = "INT2PTR(OP*,${replroot})"; | |
572 | } elsif ($$replroot) { | |
573 | # OP_PUSHRE (a mutated version of OP_MATCH for the regexp | |
574 | # argument to a split) stores a GV in op_pmreplroot instead | |
575 | # of a substitution syntax tree. We don't want to walk that... | |
576 | if ($op->name eq "pushre") { | |
577 | $gvsym = $replroot->save; | |
578 | # warn "PMOP::save saving a pp_pushre with GV $gvsym\n"; # debug | |
579 | $replrootfield = 0; | |
580 | } else { | |
581 | $replstartfield = saveoptree("*ignore*", $replroot, $replstart); | |
582 | } | |
583 | } | |
584 | # pmnext handling is broken in perl itself, I think. Bad op_pmnext | |
585 | # fields aren't noticed in perl's runtime (unless you try reset) but we | |
586 | # segfault when trying to dereference it to find op->op_pmnext->op_type | |
587 | $pmopsect->add(sprintf("%s, s\\_%x, s\\_%x, %s, %s, 0, %u, 0x%x, 0x%x, 0x%x", | |
588 | $op->_save_common, ${$op->first}, ${$op->last}, | |
589 | $replrootfield, $replstartfield, | |
590 | ( $ithreads ? $op->pmoffset : 0 ), | |
591 | $op->pmflags, $op->pmpermflags, $op->pmdynflags )); | |
592 | my $pm = sprintf("pmop_list[%d]", $pmopsect->index); | |
593 | $init->add(sprintf("$pm.op_ppaddr = %s;", $ppaddr)) | |
594 | unless $optimize_ppaddr; | |
595 | my $re = $op->precomp; | |
596 | if (defined($re)) { | |
597 | my( $resym, $relen ) = savere( $re ); | |
598 | $init->add(sprintf("PM_SETRE(&$pm,pregcomp($resym, $resym + %u, &$pm));", | |
599 | $relen)); | |
600 | } | |
601 | if ($gvsym) { | |
602 | $init->add("$pm.op_pmreplroot = (OP*)$gvsym;"); | |
603 | } | |
604 | savesym($op, "(OP*)&$pm"); | |
605 | } | |
606 | ||
607 | sub B::SPECIAL::save { | |
608 | my ($sv) = @_; | |
609 | # special case: $$sv is not the address but an index into specialsv_list | |
610 | # warn "SPECIAL::save specialsv $$sv\n"; # debug | |
611 | my $sym = $specialsv_name[$$sv]; | |
612 | if (!defined($sym)) { | |
613 | confess "unknown specialsv index $$sv passed to B::SPECIAL::save"; | |
614 | } | |
615 | return $sym; | |
616 | } | |
617 | ||
618 | sub B::OBJECT::save {} | |
619 | ||
620 | sub B::NULL::save { | |
621 | my ($sv) = @_; | |
622 | my $sym = objsym($sv); | |
623 | return $sym if defined $sym; | |
624 | # warn "Saving SVt_NULL SV\n"; # debug | |
625 | # debug | |
626 | if ($$sv == 0) { | |
627 | warn "NULL::save for sv = 0 called from @{[(caller(1))[3]]}\n"; | |
628 | return savesym($sv, "(void*)Nullsv /* XXX */"); | |
629 | } | |
630 | $svsect->add(sprintf("0, %u, 0x%x", $sv->REFCNT , $sv->FLAGS)); | |
631 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); | |
632 | } | |
633 | ||
634 | sub B::IV::save { | |
635 | my ($sv) = @_; | |
636 | my $sym = objsym($sv); | |
637 | return $sym if defined $sym; | |
638 | $xpvivsect->add(sprintf("0, 0, 0, %d", $sv->IVX)); | |
639 | $svsect->add(sprintf("&xpviv_list[%d], %lu, 0x%x", | |
640 | $xpvivsect->index, $sv->REFCNT , $sv->FLAGS)); | |
641 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); | |
642 | } | |
643 | ||
644 | sub B::NV::save { | |
645 | my ($sv) = @_; | |
646 | my $sym = objsym($sv); | |
647 | return $sym if defined $sym; | |
648 | my $val= $sv->NVX; | |
649 | $val .= '.00' if $val =~ /^-?\d+$/; | |
650 | $xpvnvsect->add(sprintf("0, 0, 0, %d, %s", $sv->IVX, $val)); | |
651 | $svsect->add(sprintf("&xpvnv_list[%d], %lu, 0x%x", | |
652 | $xpvnvsect->index, $sv->REFCNT , $sv->FLAGS)); | |
653 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); | |
654 | } | |
655 | ||
656 | sub savepvn { | |
657 | my ($dest,$pv) = @_; | |
658 | my @res; | |
659 | # work with byte offsets/lengths | |
660 | my $pv = pack "a*", $pv; | |
661 | if (defined $max_string_len && length($pv) > $max_string_len) { | |
662 | push @res, sprintf("Newx(%s,%u,char);", $dest, length($pv)+1); | |
663 | my $offset = 0; | |
664 | while (length $pv) { | |
665 | my $str = substr $pv, 0, $max_string_len, ''; | |
666 | push @res, sprintf("Copy(%s,$dest+$offset,%u,char);", | |
667 | cstring($str), length($str)); | |
668 | $offset += length $str; | |
669 | } | |
670 | push @res, sprintf("%s[%u] = '\\0';", $dest, $offset); | |
671 | } | |
672 | else { | |
673 | push @res, sprintf("%s = savepvn(%s, %u);", $dest, | |
674 | cstring($pv), length($pv)); | |
675 | } | |
676 | return @res; | |
677 | } | |
678 | ||
679 | sub B::PVLV::save { | |
680 | my ($sv) = @_; | |
681 | my $sym = objsym($sv); | |
682 | return $sym if defined $sym; | |
683 | my $pv = $sv->PV; | |
684 | my $len = length($pv); | |
685 | my ($pvsym, $pvmax) = savepv($pv); | |
686 | my ($lvtarg, $lvtarg_sym); | |
687 | $xpvlvsect->add(sprintf("%s, %u, %u, %d, %g, 0, 0, %u, %u, 0, %s", | |
688 | $pvsym, $len, $pvmax, $sv->IVX, $sv->NVX, | |
689 | $sv->TARGOFF, $sv->TARGLEN, cchar($sv->TYPE))); | |
690 | $svsect->add(sprintf("&xpvlv_list[%d], %lu, 0x%x", | |
691 | $xpvlvsect->index, $sv->REFCNT , $sv->FLAGS)); | |
692 | if (!$pv_copy_on_grow) { | |
693 | $init->add(savepvn(sprintf("xpvlv_list[%d].xpv_pv", | |
694 | $xpvlvsect->index), $pv)); | |
695 | } | |
696 | $sv->save_magic; | |
697 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); | |
698 | } | |
699 | ||
700 | sub B::PVIV::save { | |
701 | my ($sv) = @_; | |
702 | my $sym = objsym($sv); | |
703 | return $sym if defined $sym; | |
704 | my( $savesym, $pvmax, $len, $pv ) = save_pv_or_rv( $sv ); | |
705 | $xpvivsect->add(sprintf("%s, %u, %u, %d", $savesym, $len, $pvmax, $sv->IVX)); | |
706 | $svsect->add(sprintf("&xpviv_list[%d], %u, 0x%x", | |
707 | $xpvivsect->index, $sv->REFCNT , $sv->FLAGS)); | |
708 | if (defined($pv) && !$pv_copy_on_grow) { | |
709 | $init->add(savepvn(sprintf("xpviv_list[%d].xpv_pv", | |
710 | $xpvivsect->index), $pv)); | |
711 | } | |
712 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); | |
713 | } | |
714 | ||
715 | sub B::PVNV::save { | |
716 | my ($sv) = @_; | |
717 | my $sym = objsym($sv); | |
718 | return $sym if defined $sym; | |
719 | my( $savesym, $pvmax, $len, $pv ) = save_pv_or_rv( $sv ); | |
720 | my $val= $sv->NVX; | |
721 | $val .= '.00' if $val =~ /^-?\d+$/; | |
722 | $xpvnvsect->add(sprintf("%s, %u, %u, %d, %s", | |
723 | $savesym, $len, $pvmax, $sv->IVX, $val)); | |
724 | $svsect->add(sprintf("&xpvnv_list[%d], %lu, 0x%x", | |
725 | $xpvnvsect->index, $sv->REFCNT , $sv->FLAGS)); | |
726 | if (defined($pv) && !$pv_copy_on_grow) { | |
727 | $init->add(savepvn(sprintf("xpvnv_list[%d].xpv_pv", | |
728 | $xpvnvsect->index), $pv)); | |
729 | } | |
730 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); | |
731 | } | |
732 | ||
733 | sub B::BM::save { | |
734 | my ($sv) = @_; | |
735 | my $sym = objsym($sv); | |
736 | return $sym if defined $sym; | |
737 | my $pv = pack "a*", ($sv->PV . "\0" . $sv->TABLE); | |
738 | my $len = length($pv); | |
739 | $xpvbmsect->add(sprintf("0, %u, %u, %d, %s, 0, 0, %d, %u, 0x%x", | |
740 | $len, $len + 258, $sv->IVX, $sv->NVX, | |
741 | $sv->USEFUL, $sv->PREVIOUS, $sv->RARE)); | |
742 | $svsect->add(sprintf("&xpvbm_list[%d], %lu, 0x%x", | |
743 | $xpvbmsect->index, $sv->REFCNT , $sv->FLAGS)); | |
744 | $sv->save_magic; | |
745 | $init->add(savepvn(sprintf("xpvbm_list[%d].xpv_pv", | |
746 | $xpvbmsect->index), $pv), | |
747 | sprintf("xpvbm_list[%d].xpv_cur = %u;", | |
748 | $xpvbmsect->index, $len - 257)); | |
749 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); | |
750 | } | |
751 | ||
752 | sub B::PV::save { | |
753 | my ($sv) = @_; | |
754 | my $sym = objsym($sv); | |
755 | return $sym if defined $sym; | |
756 | my( $savesym, $pvmax, $len, $pv ) = save_pv_or_rv( $sv ); | |
757 | $xpvsect->add(sprintf("%s, %u, %u", $savesym, $len, $pvmax)); | |
758 | $svsect->add(sprintf("&xpv_list[%d], %lu, 0x%x", | |
759 | $xpvsect->index, $sv->REFCNT , $sv->FLAGS)); | |
760 | if (defined($pv) && !$pv_copy_on_grow) { | |
761 | $init->add(savepvn(sprintf("xpv_list[%d].xpv_pv", | |
762 | $xpvsect->index), $pv)); | |
763 | } | |
764 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); | |
765 | } | |
766 | ||
767 | sub B::PVMG::save { | |
768 | my ($sv) = @_; | |
769 | my $sym = objsym($sv); | |
770 | return $sym if defined $sym; | |
771 | my( $savesym, $pvmax, $len, $pv ) = save_pv_or_rv( $sv ); | |
772 | ||
773 | $xpvmgsect->add(sprintf("%s, %u, %u, %d, %s, 0, 0", | |
774 | $savesym, $len, $pvmax, | |
775 | $sv->IVX, $sv->NVX)); | |
776 | $svsect->add(sprintf("&xpvmg_list[%d], %lu, 0x%x", | |
777 | $xpvmgsect->index, $sv->REFCNT , $sv->FLAGS)); | |
778 | if (defined($pv) && !$pv_copy_on_grow) { | |
779 | $init->add(savepvn(sprintf("xpvmg_list[%d].xpv_pv", | |
780 | $xpvmgsect->index), $pv)); | |
781 | } | |
782 | $sym = savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); | |
783 | $sv->save_magic; | |
784 | return $sym; | |
785 | } | |
786 | ||
787 | sub B::PVMG::save_magic { | |
788 | my ($sv) = @_; | |
789 | #warn sprintf("saving magic for %s (0x%x)\n", class($sv), $$sv); # debug | |
790 | my $stash = $sv->SvSTASH; | |
791 | $stash->save; | |
792 | if ($$stash) { | |
793 | warn sprintf("xmg_stash = %s (0x%x)\n", $stash->NAME, $$stash) | |
794 | if $debug_mg; | |
795 | # XXX Hope stash is already going to be saved. | |
796 | $init->add(sprintf("SvSTASH(s\\_%x) = s\\_%x;", $$sv, $$stash)); | |
797 | } | |
798 | my @mgchain = $sv->MAGIC; | |
799 | my ($mg, $type, $obj, $ptr,$len,$ptrsv); | |
800 | foreach $mg (@mgchain) { | |
801 | $type = $mg->TYPE; | |
802 | $ptr = $mg->PTR; | |
803 | $len=$mg->LENGTH; | |
804 | if ($debug_mg) { | |
805 | warn sprintf("magic %s (0x%x), obj %s (0x%x), type %s, ptr %s\n", | |
806 | class($sv), $$sv, class($obj), $$obj, | |
807 | cchar($type), cstring($ptr)); | |
808 | } | |
809 | ||
810 | unless( $type eq 'r' ) { | |
811 | $obj = $mg->OBJ; | |
812 | $obj->save; | |
813 | } | |
814 | ||
815 | if ($len == HEf_SVKEY){ | |
816 | #The pointer is an SV* | |
817 | $ptrsv=svref_2object($ptr)->save; | |
818 | $init->add(sprintf("sv_magic((SV*)s\\_%x, (SV*)s\\_%x, %s,(char *) %s, %d);", | |
819 | $$sv, $$obj, cchar($type),$ptrsv,$len)); | |
820 | }elsif( $type eq 'r' ){ | |
821 | my $rx = $mg->REGEX; | |
822 | my $pmop = $REGEXP{$rx}; | |
823 | ||
824 | confess "PMOP not found for REGEXP $rx" unless $pmop; | |
825 | ||
826 | my( $resym, $relen ) = savere( $mg->precomp ); | |
827 | my $pmsym = $pmop->save; | |
828 | $init->add( split /\n/, sprintf <<CODE, $$sv, cchar($type), cstring($ptr) ); | |
829 | { | |
830 | REGEXP* rx = pregcomp($resym, $resym + $relen, (PMOP*)$pmsym); | |
831 | sv_magic((SV*)s\\_%x, (SV*)rx, %s, %s, %d); | |
832 | } | |
833 | CODE | |
834 | }else{ | |
835 | $init->add(sprintf("sv_magic((SV*)s\\_%x, (SV*)s\\_%x, %s, %s, %d);", | |
836 | $$sv, $$obj, cchar($type),cstring($ptr),$len)); | |
837 | } | |
838 | } | |
839 | } | |
840 | ||
841 | sub B::RV::save { | |
842 | my ($sv) = @_; | |
843 | my $sym = objsym($sv); | |
844 | return $sym if defined $sym; | |
845 | my $rv = save_rv( $sv ); | |
846 | # GVs need to be handled at runtime | |
847 | if( ref( $sv->RV ) eq 'B::GV' ) { | |
848 | $xrvsect->add( "(SV*)Nullgv" ); | |
849 | $init->add(sprintf("xrv_list[%d].xrv_rv = (SV*)%s;\n", $xrvsect->index, $rv)); | |
850 | } | |
851 | # and stashes, too | |
852 | elsif( $sv->RV->isa( 'B::HV' ) && $sv->RV->NAME ) { | |
853 | $xrvsect->add( "(SV*)Nullhv" ); | |
854 | $init->add(sprintf("xrv_list[%d].xrv_rv = (SV*)%s;\n", $xrvsect->index, $rv)); | |
855 | } | |
856 | else { | |
857 | $xrvsect->add($rv); | |
858 | } | |
859 | $svsect->add(sprintf("&xrv_list[%d], %lu, 0x%x", | |
860 | $xrvsect->index, $sv->REFCNT , $sv->FLAGS)); | |
861 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); | |
862 | } | |
863 | ||
864 | sub try_autoload { | |
865 | my ($cvstashname, $cvname) = @_; | |
866 | warn sprintf("No definition for sub %s::%s\n", $cvstashname, $cvname); | |
867 | # Handle AutoLoader classes explicitly. Any more general AUTOLOAD | |
868 | # use should be handled by the class itself. | |
869 | no strict 'refs'; | |
870 | my $isa = \@{"$cvstashname\::ISA"}; | |
871 | if (grep($_ eq "AutoLoader", @$isa)) { | |
872 | warn "Forcing immediate load of sub derived from AutoLoader\n"; | |
873 | # Tweaked version of AutoLoader::AUTOLOAD | |
874 | my $dir = $cvstashname; | |
875 | $dir =~ s(::)(/)g; | |
876 | eval { require "auto/$dir/$cvname.al" }; | |
877 | if ($@) { | |
878 | warn qq(failed require "auto/$dir/$cvname.al": $@\n); | |
879 | return 0; | |
880 | } else { | |
881 | return 1; | |
882 | } | |
883 | } | |
884 | } | |
885 | sub Dummy_initxs{}; | |
886 | sub B::CV::save { | |
887 | my ($cv) = @_; | |
888 | my $sym = objsym($cv); | |
889 | if (defined($sym)) { | |
890 | # warn sprintf("CV 0x%x already saved as $sym\n", $$cv); # debug | |
891 | return $sym; | |
892 | } | |
893 | # Reserve a place in svsect and xpvcvsect and record indices | |
894 | my $gv = $cv->GV; | |
895 | my ($cvname, $cvstashname); | |
896 | if ($$gv){ | |
897 | $cvname = $gv->NAME; | |
898 | $cvstashname = $gv->STASH->NAME; | |
899 | } | |
900 | my $root = $cv->ROOT; | |
901 | my $cvxsub = $cv->XSUB; | |
902 | my $isconst = $cv->CvFLAGS & CVf_CONST; | |
903 | if( $isconst ) { | |
904 | my $value = $cv->XSUBANY; | |
905 | my $stash = $gv->STASH; | |
906 | my $vsym = $value->save; | |
907 | my $stsym = $stash->save; | |
908 | my $name = cstring($cvname); | |
909 | $decl->add( "static CV* cv$cv_index;" ); | |
910 | $init->add( "cv$cv_index = newCONSTSUB( $stsym, NULL, $vsym );" ); | |
911 | my $sym = savesym( $cv, "cv$cv_index" ); | |
912 | $cv_index++; | |
913 | return $sym; | |
914 | } | |
915 | #INIT is removed from the symbol table, so this call must come | |
916 | # from PL_initav->save. Re-bootstrapping will push INIT back in | |
917 | # so nullop should be sent. | |
918 | if (!$isconst && $cvxsub && ($cvname ne "INIT")) { | |
919 | my $egv = $gv->EGV; | |
920 | my $stashname = $egv->STASH->NAME; | |
921 | if ($cvname eq "bootstrap") | |
922 | { | |
923 | my $file = $gv->FILE; | |
924 | $decl->add("/* bootstrap $file */"); | |
925 | warn "Bootstrap $stashname $file\n"; | |
926 | # if it not isa('DynaLoader'), it should hopefully be XSLoaded | |
927 | # ( attributes being an exception, of course ) | |
928 | if( $stashname ne 'attributes' && | |
929 | !UNIVERSAL::isa($stashname,'DynaLoader') ) { | |
930 | $xsub{$stashname}='Dynamic-XSLoaded'; | |
931 | $use_xsloader = 1; | |
932 | } | |
933 | else { | |
934 | $xsub{$stashname}='Dynamic'; | |
935 | } | |
936 | # $xsub{$stashname}='Static' unless $xsub{$stashname}; | |
937 | return qq/NULL/; | |
938 | } | |
939 | else | |
940 | { | |
941 | # XSUBs for IO::File, IO::Handle, IO::Socket, | |
942 | # IO::Seekable and IO::Poll | |
943 | # are defined in IO.xs, so let's bootstrap it | |
944 | svref_2object( \&IO::bootstrap )->save | |
945 | if grep { $stashname eq $_ } qw(IO::File IO::Handle IO::Socket | |
946 | IO::Seekable IO::Poll); | |
947 | } | |
948 | warn sprintf("stub for XSUB $cvstashname\:\:$cvname CV 0x%x\n", $$cv) if $debug_cv; | |
949 | return qq/(perl_get_cv("$stashname\:\:$cvname",TRUE))/; | |
950 | } | |
951 | if ($cvxsub && $cvname eq "INIT") { | |
952 | no strict 'refs'; | |
953 | return svref_2object(\&Dummy_initxs)->save; | |
954 | } | |
955 | my $sv_ix = $svsect->index + 1; | |
956 | $svsect->add("svix$sv_ix"); | |
957 | my $xpvcv_ix = $xpvcvsect->index + 1; | |
958 | $xpvcvsect->add("xpvcvix$xpvcv_ix"); | |
959 | # Save symbol now so that GvCV() doesn't recurse back to us via CvGV() | |
960 | $sym = savesym($cv, "&sv_list[$sv_ix]"); | |
961 | warn sprintf("saving $cvstashname\:\:$cvname CV 0x%x as $sym\n", $$cv) if $debug_cv; | |
962 | if (!$$root && !$cvxsub) { | |
963 | if (try_autoload($cvstashname, $cvname)) { | |
964 | # Recalculate root and xsub | |
965 | $root = $cv->ROOT; | |
966 | $cvxsub = $cv->XSUB; | |
967 | if ($$root || $cvxsub) { | |
968 | warn "Successful forced autoload\n"; | |
969 | } | |
970 | } | |
971 | } | |
972 | my $startfield = 0; | |
973 | my $padlist = $cv->PADLIST; | |
974 | my $pv = $cv->PV; | |
975 | my $xsub = 0; | |
976 | my $xsubany = "Nullany"; | |
977 | if ($$root) { | |
978 | warn sprintf("saving op tree for CV 0x%x, root = 0x%x\n", | |
979 | $$cv, $$root) if $debug_cv; | |
980 | my $ppname = ""; | |
981 | if ($$gv) { | |
982 | my $stashname = $gv->STASH->NAME; | |
983 | my $gvname = $gv->NAME; | |
984 | if ($gvname ne "__ANON__") { | |
985 | $ppname = (${$gv->FORM} == $$cv) ? "pp_form_" : "pp_sub_"; | |
986 | $ppname .= ($stashname eq "main") ? | |
987 | $gvname : "$stashname\::$gvname"; | |
988 | $ppname =~ s/::/__/g; | |
989 | if ($gvname eq "INIT"){ | |
990 | $ppname .= "_$initsub_index"; | |
991 | $initsub_index++; | |
992 | } | |
993 | } | |
994 | } | |
995 | if (!$ppname) { | |
996 | $ppname = "pp_anonsub_$anonsub_index"; | |
997 | $anonsub_index++; | |
998 | } | |
999 | $startfield = saveoptree($ppname, $root, $cv->START, $padlist->ARRAY); | |
1000 | warn sprintf("done saving op tree for CV 0x%x, name %s, root 0x%x\n", | |
1001 | $$cv, $ppname, $$root) if $debug_cv; | |
1002 | if ($$padlist) { | |
1003 | warn sprintf("saving PADLIST 0x%x for CV 0x%x\n", | |
1004 | $$padlist, $$cv) if $debug_cv; | |
1005 | $padlist->save; | |
1006 | warn sprintf("done saving PADLIST 0x%x for CV 0x%x\n", | |
1007 | $$padlist, $$cv) if $debug_cv; | |
1008 | } | |
1009 | } | |
1010 | else { | |
1011 | warn sprintf("No definition for sub %s::%s (unable to autoload)\n", | |
1012 | $cvstashname, $cvname); # debug | |
1013 | } | |
1014 | $pv = '' unless defined $pv; # Avoid use of undef warnings | |
1015 | $symsect->add(sprintf("xpvcvix%d\t%s, %u, 0, %d, %s, 0, Nullhv, Nullhv, %s, s\\_%x, $xsub, $xsubany, Nullgv, \"\", %d, s\\_%x, (CV*)s\\_%x, 0x%x, 0x%x", | |
1016 | $xpvcv_ix, cstring($pv), length($pv), $cv->IVX, | |
1017 | $cv->NVX, $startfield, ${$cv->ROOT}, $cv->DEPTH, | |
1018 | $$padlist, ${$cv->OUTSIDE}, $cv->CvFLAGS, | |
1019 | $cv->OUTSIDE_SEQ)); | |
1020 | ||
1021 | if (${$cv->OUTSIDE} == ${main_cv()}){ | |
1022 | $init->add(sprintf("CvOUTSIDE(s\\_%x)=PL_main_cv;",$$cv)); | |
1023 | $init->add(sprintf("SvREFCNT_inc(PL_main_cv);")); | |
1024 | } | |
1025 | ||
1026 | if ($$gv) { | |
1027 | $gv->save; | |
1028 | $init->add(sprintf("CvGV(s\\_%x) = s\\_%x;",$$cv,$$gv)); | |
1029 | warn sprintf("done saving GV 0x%x for CV 0x%x\n", | |
1030 | $$gv, $$cv) if $debug_cv; | |
1031 | } | |
1032 | if( $ithreads ) { | |
1033 | $init->add( savepvn( "CvFILE($sym)", $cv->FILE) ); | |
1034 | } | |
1035 | else { | |
1036 | $init->add(sprintf("CvFILE($sym) = %s;", cstring($cv->FILE))); | |
1037 | } | |
1038 | my $stash = $cv->STASH; | |
1039 | if ($$stash) { | |
1040 | $stash->save; | |
1041 | $init->add(sprintf("CvSTASH(s\\_%x) = s\\_%x;", $$cv, $$stash)); | |
1042 | warn sprintf("done saving STASH 0x%x for CV 0x%x\n", | |
1043 | $$stash, $$cv) if $debug_cv; | |
1044 | } | |
1045 | $symsect->add(sprintf("svix%d\t(XPVCV*)&xpvcv_list[%u], %lu, 0x%x", | |
1046 | $sv_ix, $xpvcv_ix, $cv->REFCNT +1*0 , $cv->FLAGS)); | |
1047 | return $sym; | |
1048 | } | |
1049 | ||
1050 | sub B::GV::save { | |
1051 | my ($gv) = @_; | |
1052 | my $sym = objsym($gv); | |
1053 | if (defined($sym)) { | |
1054 | #warn sprintf("GV 0x%x already saved as $sym\n", $$gv); # debug | |
1055 | return $sym; | |
1056 | } else { | |
1057 | my $ix = $gv_index++; | |
1058 | $sym = savesym($gv, "gv_list[$ix]"); | |
1059 | #warn sprintf("Saving GV 0x%x as $sym\n", $$gv); # debug | |
1060 | } | |
1061 | my $is_empty = $gv->is_empty; | |
1062 | my $gvname = $gv->NAME; | |
1063 | my $fullname = $gv->STASH->NAME . "::" . $gvname; | |
1064 | my $name = cstring($fullname); | |
1065 | #warn "GV name is $name\n"; # debug | |
1066 | my $egvsym; | |
1067 | unless ($is_empty) { | |
1068 | my $egv = $gv->EGV; | |
1069 | if ($$gv != $$egv) { | |
1070 | #warn(sprintf("EGV name is %s, saving it now\n", | |
1071 | # $egv->STASH->NAME . "::" . $egv->NAME)); # debug | |
1072 | $egvsym = $egv->save; | |
1073 | } | |
1074 | } | |
1075 | $init->add(qq[$sym = gv_fetchpv($name, TRUE, SVt_PV);], | |
1076 | sprintf("SvFLAGS($sym) = 0x%x;", $gv->FLAGS ), | |
1077 | sprintf("GvFLAGS($sym) = 0x%x;", $gv->GvFLAGS)); | |
1078 | $init->add(sprintf("GvLINE($sym) = %u;", $gv->LINE)) unless $is_empty; | |
1079 | # XXX hack for when Perl accesses PVX of GVs | |
1080 | $init->add("SvPVX($sym) = emptystring;\n"); | |
1081 | # Shouldn't need to do save_magic since gv_fetchpv handles that | |
1082 | #$gv->save_magic; | |
1083 | # XXX will always be > 1!!! | |
1084 | my $refcnt = $gv->REFCNT + 1; | |
1085 | $init->add(sprintf("SvREFCNT($sym) += %u;", $refcnt - 1 )) if $refcnt > 1; | |
1086 | ||
1087 | return $sym if $is_empty; | |
1088 | ||
1089 | # XXX B::walksymtable creates an extra reference to the GV | |
1090 | my $gvrefcnt = $gv->GvREFCNT; | |
1091 | if ($gvrefcnt > 1) { | |
1092 | $init->add(sprintf("GvREFCNT($sym) += %u;", $gvrefcnt - 1)); | |
1093 | } | |
1094 | # some non-alphavetic globs require some parts to be saved | |
1095 | # ( ex. %!, but not $! ) | |
1096 | sub Save_HV() { 1 } | |
1097 | sub Save_AV() { 2 } | |
1098 | sub Save_SV() { 4 } | |
1099 | sub Save_CV() { 8 } | |
1100 | sub Save_FORM() { 16 } | |
1101 | sub Save_IO() { 32 } | |
1102 | my $savefields = 0; | |
1103 | if( $gvname !~ /^([^A-Za-z]|STDIN|STDOUT|STDERR|ARGV|SIG|ENV)$/ ) { | |
1104 | $savefields = Save_HV|Save_AV|Save_SV|Save_CV|Save_FORM|Save_IO; | |
1105 | } | |
1106 | elsif( $gvname eq '!' ) { | |
1107 | $savefields = Save_HV; | |
1108 | } | |
1109 | # attributes::bootstrap is created in perl_parse | |
1110 | # saving it would overwrite it, because perl_init() is | |
1111 | # called after perl_parse() | |
1112 | $savefields&=~Save_CV if $fullname eq 'attributes::bootstrap'; | |
1113 | ||
1114 | # save it | |
1115 | # XXX is that correct? | |
1116 | if (defined($egvsym) && $egvsym !~ m/Null/ ) { | |
1117 | # Shared glob *foo = *bar | |
1118 | $init->add("gp_free($sym);", | |
1119 | "GvGP($sym) = GvGP($egvsym);"); | |
1120 | } elsif ($savefields) { | |
1121 | # Don't save subfields of special GVs (*_, *1, *# and so on) | |
1122 | # warn "GV::save saving subfields\n"; # debug | |
1123 | my $gvsv = $gv->SV; | |
1124 | if ($$gvsv && $savefields&Save_SV) { | |
1125 | $gvsv->save; | |
1126 | $init->add(sprintf("GvSV($sym) = s\\_%x;", $$gvsv)); | |
1127 | # warn "GV::save \$$name\n"; # debug | |
1128 | } | |
1129 | my $gvav = $gv->AV; | |
1130 | if ($$gvav && $savefields&Save_AV) { | |
1131 | $gvav->save; | |
1132 | $init->add(sprintf("GvAV($sym) = s\\_%x;", $$gvav)); | |
1133 | # warn "GV::save \@$name\n"; # debug | |
1134 | } | |
1135 | my $gvhv = $gv->HV; | |
1136 | if ($$gvhv && $savefields&Save_HV) { | |
1137 | $gvhv->save; | |
1138 | $init->add(sprintf("GvHV($sym) = s\\_%x;", $$gvhv)); | |
1139 | # warn "GV::save \%$name\n"; # debug | |
1140 | } | |
1141 | my $gvcv = $gv->CV; | |
1142 | if ($$gvcv && $savefields&Save_CV) { | |
1143 | my $origname=cstring($gvcv->GV->EGV->STASH->NAME . | |
1144 | "::" . $gvcv->GV->EGV->NAME); | |
1145 | if (0 && $gvcv->XSUB && $name ne $origname) { #XSUB alias | |
1146 | # must save as a 'stub' so newXS() has a CV to populate | |
1147 | $init->add("{ CV *cv;"); | |
1148 | $init->add("\tcv=perl_get_cv($origname,TRUE);"); | |
1149 | $init->add("\tGvCV($sym)=cv;"); | |
1150 | $init->add("\tSvREFCNT_inc((SV *)cv);"); | |
1151 | $init->add("}"); | |
1152 | } else { | |
1153 | $init->add(sprintf("GvCV($sym) = (CV*)(%s);", $gvcv->save)); | |
1154 | # warn "GV::save &$name\n"; # debug | |
1155 | } | |
1156 | } | |
1157 | $init->add(sprintf("GvFILE($sym) = %s;", cstring($gv->FILE))); | |
1158 | # warn "GV::save GvFILE(*$name)\n"; # debug | |
1159 | my $gvform = $gv->FORM; | |
1160 | if ($$gvform && $savefields&Save_FORM) { | |
1161 | $gvform->save; | |
1162 | $init->add(sprintf("GvFORM($sym) = (CV*)s\\_%x;", $$gvform)); | |
1163 | # warn "GV::save GvFORM(*$name)\n"; # debug | |
1164 | } | |
1165 | my $gvio = $gv->IO; | |
1166 | if ($$gvio && $savefields&Save_IO) { | |
1167 | $gvio->save; | |
1168 | $init->add(sprintf("GvIOp($sym) = s\\_%x;", $$gvio)); | |
1169 | if( $fullname =~ m/::DATA$/ && $save_data_fh ) { | |
1170 | no strict 'refs'; | |
1171 | my $fh = *{$fullname}{IO}; | |
1172 | use strict 'refs'; | |
1173 | $gvio->save_data( $fullname, <$fh> ) if $fh->opened; | |
1174 | } | |
1175 | # warn "GV::save GvIO(*$name)\n"; # debug | |
1176 | } | |
1177 | } | |
1178 | return $sym; | |
1179 | } | |
1180 | ||
1181 | sub B::AV::save { | |
1182 | my ($av) = @_; | |
1183 | my $sym = objsym($av); | |
1184 | return $sym if defined $sym; | |
1185 | my $line = "0, -1, -1, 0, 0.0, 0, Nullhv, 0, 0"; | |
1186 | $line .= sprintf(", 0x%x", $av->AvFLAGS) if $] < 5.009; | |
1187 | $xpvavsect->add($line); | |
1188 | $svsect->add(sprintf("&xpvav_list[%d], %lu, 0x%x", | |
1189 | $xpvavsect->index, $av->REFCNT , $av->FLAGS)); | |
1190 | my $sv_list_index = $svsect->index; | |
1191 | my $fill = $av->FILL; | |
1192 | $av->save_magic; | |
1193 | if ($debug_av) { | |
1194 | $line = sprintf("saving AV 0x%x FILL=$fill", $$av); | |
1195 | $line .= sprintf(" AvFLAGS=0x%x", $av->AvFLAGS) if $] < 5.009; | |
1196 | warn $line; | |
1197 | } | |
1198 | # XXX AVf_REAL is wrong test: need to save comppadlist but not stack | |
1199 | #if ($fill > -1 && ($avflags & AVf_REAL)) { | |
1200 | if ($fill > -1) { | |
1201 | my @array = $av->ARRAY; | |
1202 | if ($debug_av) { | |
1203 | my $el; | |
1204 | my $i = 0; | |
1205 | foreach $el (@array) { | |
1206 | warn sprintf("AV 0x%x[%d] = %s 0x%x\n", | |
1207 | $$av, $i++, class($el), $$el); | |
1208 | } | |
1209 | } | |
1210 | # my @names = map($_->save, @array); | |
1211 | # XXX Better ways to write loop? | |
1212 | # Perhaps svp[0] = ...; svp[1] = ...; svp[2] = ...; | |
1213 | # Perhaps I32 i = 0; svp[i++] = ...; svp[i++] = ...; svp[i++] = ...; | |
1214 | ||
1215 | # micro optimization: op/pat.t ( and other code probably ) | |
1216 | # has very large pads ( 20k/30k elements ) passing them to | |
1217 | # ->add is a performance bottleneck: passing them as a | |
1218 | # single string cuts runtime from 6min20sec to 40sec | |
1219 | ||
1220 | # you want to keep this out of the no_split/split | |
1221 | # map("\t*svp++ = (SV*)$_;", @names), | |
1222 | my $acc = ''; | |
1223 | foreach my $i ( 0..$#array ) { | |
1224 | $acc .= "\t*svp++ = (SV*)" . $array[$i]->save . ";\n\t"; | |
1225 | } | |
1226 | $acc .= "\n"; | |
1227 | ||
1228 | $init->no_split; | |
1229 | $init->add("{", | |
1230 | "\tSV **svp;", | |
1231 | "\tAV *av = (AV*)&sv_list[$sv_list_index];", | |
1232 | "\tav_extend(av, $fill);", | |
1233 | "\tsvp = AvARRAY(av);" ); | |
1234 | $init->add($acc); | |
1235 | $init->add("\tAvFILLp(av) = $fill;", | |
1236 | "}"); | |
1237 | $init->split; | |
1238 | # we really added a lot of lines ( B::C::InitSection->add | |
1239 | # should really scan for \n, but that would slow | |
1240 | # it down | |
1241 | $init->inc_count( $#array ); | |
1242 | } else { | |
1243 | my $max = $av->MAX; | |
1244 | $init->add("av_extend((AV*)&sv_list[$sv_list_index], $max);") | |
1245 | if $max > -1; | |
1246 | } | |
1247 | return savesym($av, "(AV*)&sv_list[$sv_list_index]"); | |
1248 | } | |
1249 | ||
1250 | sub B::HV::save { | |
1251 | my ($hv) = @_; | |
1252 | my $sym = objsym($hv); | |
1253 | return $sym if defined $sym; | |
1254 | my $name = $hv->NAME; | |
1255 | if ($name) { | |
1256 | # It's a stash | |
1257 | ||
1258 | # A perl bug means HvPMROOT isn't altered when a PMOP is freed. Usually | |
1259 | # the only symptom is that sv_reset tries to reset the PMf_USED flag of | |
1260 | # a trashed op but we look at the trashed op_type and segfault. | |
1261 | #my $adpmroot = ${$hv->PMROOT}; | |
1262 | my $adpmroot = 0; | |
1263 | $decl->add("static HV *hv$hv_index;"); | |
1264 | # XXX Beware of weird package names containing double-quotes, \n, ...? | |
1265 | $init->add(qq[hv$hv_index = gv_stashpv("$name", TRUE);]); | |
1266 | if ($adpmroot) { | |
1267 | $init->add(sprintf("HvPMROOT(hv$hv_index) = (PMOP*)s\\_%x;", | |
1268 | $adpmroot)); | |
1269 | } | |
1270 | $sym = savesym($hv, "hv$hv_index"); | |
1271 | $hv_index++; | |
1272 | return $sym; | |
1273 | } | |
1274 | # It's just an ordinary HV | |
1275 | $xpvhvsect->add(sprintf("0, 0, %d, 0, 0.0, 0, Nullhv, %d, 0, 0, 0", | |
1276 | $hv->MAX, $hv->RITER)); | |
1277 | $svsect->add(sprintf("&xpvhv_list[%d], %lu, 0x%x", | |
1278 | $xpvhvsect->index, $hv->REFCNT , $hv->FLAGS)); | |
1279 | my $sv_list_index = $svsect->index; | |
1280 | my @contents = $hv->ARRAY; | |
1281 | if (@contents) { | |
1282 | my $i; | |
1283 | for ($i = 1; $i < @contents; $i += 2) { | |
1284 | $contents[$i] = $contents[$i]->save; | |
1285 | } | |
1286 | $init->no_split; | |
1287 | $init->add("{", "\tHV *hv = (HV*)&sv_list[$sv_list_index];"); | |
1288 | while (@contents) { | |
1289 | my ($key, $value) = splice(@contents, 0, 2); | |
1290 | $init->add(sprintf("\thv_store(hv, %s, %u, %s, %s);", | |
1291 | cstring($key),length(pack "a*",$key), | |
1292 | $value, hash($key))); | |
1293 | # $init->add(sprintf("\thv_store(hv, %s, %u, %s, %s);", | |
1294 | # cstring($key),length($key),$value, 0)); | |
1295 | } | |
1296 | $init->add("}"); | |
1297 | $init->split; | |
1298 | } | |
1299 | $hv->save_magic(); | |
1300 | return savesym($hv, "(HV*)&sv_list[$sv_list_index]"); | |
1301 | } | |
1302 | ||
1303 | sub B::IO::save_data { | |
1304 | my( $io, $globname, @data ) = @_; | |
1305 | my $data = join '', @data; | |
1306 | ||
1307 | # XXX using $DATA might clobber it! | |
1308 | my $sym = svref_2object( \\$data )->save; | |
1309 | $init->add( split /\n/, <<CODE ); | |
1310 | { | |
1311 | GV* gv = (GV*)gv_fetchpv( "$globname", TRUE, SVt_PV ); | |
1312 | SV* sv = $sym; | |
1313 | GvSV( gv ) = sv; | |
1314 | } | |
1315 | CODE | |
1316 | # for PerlIO::scalar | |
1317 | $use_xsloader = 1; | |
1318 | $init->add_eval( sprintf 'open(%s, "<", $%s)', $globname, $globname ); | |
1319 | } | |
1320 | ||
1321 | sub B::IO::save { | |
1322 | my ($io) = @_; | |
1323 | my $sym = objsym($io); | |
1324 | return $sym if defined $sym; | |
1325 | my $pv = $io->PV; | |
1326 | $pv = '' unless defined $pv; | |
1327 | my $len = length($pv); | |
1328 | $xpviosect->add(sprintf("0, %u, %u, %d, %s, 0, 0, 0, 0, 0, %d, %d, %d, %d, %s, Nullgv, %s, Nullgv, %s, Nullgv, %d, %s, 0x%x", | |
1329 | $len, $len+1, $io->IVX, $io->NVX, $io->LINES, | |
1330 | $io->PAGE, $io->PAGE_LEN, $io->LINES_LEFT, | |
1331 | cstring($io->TOP_NAME), cstring($io->FMT_NAME), | |
1332 | cstring($io->BOTTOM_NAME), $io->SUBPROCESS, | |
1333 | cchar($io->IoTYPE), $io->IoFLAGS)); | |
1334 | $svsect->add(sprintf("&xpvio_list[%d], %lu, 0x%x", | |
1335 | $xpviosect->index, $io->REFCNT , $io->FLAGS)); | |
1336 | $sym = savesym($io, sprintf("(IO*)&sv_list[%d]", $svsect->index)); | |
1337 | # deal with $x = *STDIN/STDOUT/STDERR{IO} | |
1338 | my $perlio_func; | |
1339 | foreach ( qw(stdin stdout stderr) ) { | |
1340 | $io->IsSTD($_) and $perlio_func = $_; | |
1341 | } | |
1342 | if( $perlio_func ) { | |
1343 | $init->add( "IoIFP(${sym})=PerlIO_${perlio_func}();" ); | |
1344 | $init->add( "IoOFP(${sym})=PerlIO_${perlio_func}();" ); | |
1345 | } | |
1346 | ||
1347 | my ($field, $fsym); | |
1348 | foreach $field (qw(TOP_GV FMT_GV BOTTOM_GV)) { | |
1349 | $fsym = $io->$field(); | |
1350 | if ($$fsym) { | |
1351 | $init->add(sprintf("Io$field($sym) = (GV*)s\\_%x;", $$fsym)); | |
1352 | $fsym->save; | |
1353 | } | |
1354 | } | |
1355 | $io->save_magic; | |
1356 | return $sym; | |
1357 | } | |
1358 | ||
1359 | sub B::SV::save { | |
1360 | my $sv = shift; | |
1361 | # This is where we catch an honest-to-goodness Nullsv (which gets | |
1362 | # blessed into B::SV explicitly) and any stray erroneous SVs. | |
1363 | return 0 unless $$sv; | |
1364 | confess sprintf("cannot save that type of SV: %s (0x%x)\n", | |
1365 | class($sv), $$sv); | |
1366 | } | |
1367 | ||
1368 | sub output_all { | |
1369 | my $init_name = shift; | |
1370 | my $section; | |
1371 | my @sections = ($opsect, $unopsect, $binopsect, $logopsect, $condopsect, | |
1372 | $listopsect, $pmopsect, $svopsect, $padopsect, $pvopsect, | |
1373 | $loopsect, $copsect, $svsect, $xpvsect, | |
1374 | $xpvavsect, $xpvhvsect, $xpvcvsect, $xpvivsect, $xpvnvsect, | |
1375 | $xpvmgsect, $xpvlvsect, $xrvsect, $xpvbmsect, $xpviosect); | |
1376 | $symsect->output(\*STDOUT, "#define %s\n"); | |
1377 | print "\n"; | |
1378 | output_declarations(); | |
1379 | foreach $section (@sections) { | |
1380 | my $lines = $section->index + 1; | |
1381 | if ($lines) { | |
1382 | my $name = $section->name; | |
1383 | my $typename = ($name eq "xpvcv") ? "XPVCV_or_similar" : uc($name); | |
1384 | print "Static $typename ${name}_list[$lines];\n"; | |
1385 | } | |
1386 | } | |
1387 | # XXX hack for when Perl accesses PVX of GVs | |
1388 | print 'Static char emptystring[] = "\0";'; | |
1389 | ||
1390 | $decl->output(\*STDOUT, "%s\n"); | |
1391 | print "\n"; | |
1392 | foreach $section (@sections) { | |
1393 | my $lines = $section->index + 1; | |
1394 | if ($lines) { | |
1395 | my $name = $section->name; | |
1396 | my $typename = ($name eq "xpvcv") ? "XPVCV_or_similar" : uc($name); | |
1397 | printf "static %s %s_list[%u] = {\n", $typename, $name, $lines; | |
1398 | $section->output(\*STDOUT, "\t{ %s }, /* %d */\n"); | |
1399 | print "};\n\n"; | |
1400 | } | |
1401 | } | |
1402 | ||
1403 | $init->output(\*STDOUT, "\t%s\n", $init_name ); | |
1404 | if ($verbose) { | |
1405 | warn compile_stats(); | |
1406 | warn "NULLOP count: $nullop_count\n"; | |
1407 | } | |
1408 | } | |
1409 | ||
1410 | sub output_declarations { | |
1411 | print <<'EOT'; | |
1412 | #ifdef BROKEN_STATIC_REDECL | |
1413 | #define Static extern | |
1414 | #else | |
1415 | #define Static static | |
1416 | #endif /* BROKEN_STATIC_REDECL */ | |
1417 | ||
1418 | #ifdef BROKEN_UNION_INIT | |
1419 | /* | |
1420 | * Cribbed from cv.h with ANY (a union) replaced by void*. | |
1421 | * Some pre-Standard compilers can't cope with initialising unions. Ho hum. | |
1422 | */ | |
1423 | typedef struct { | |
1424 | char * xpv_pv; /* pointer to malloced string */ | |
1425 | STRLEN xpv_cur; /* length of xp_pv as a C string */ | |
1426 | STRLEN xpv_len; /* allocated size */ | |
1427 | IV xof_off; /* integer value */ | |
1428 | NV xnv_nv; /* numeric value, if any */ | |
1429 | MAGIC* xmg_magic; /* magic for scalar array */ | |
1430 | HV* xmg_stash; /* class package */ | |
1431 | ||
1432 | HV * xcv_stash; | |
1433 | OP * xcv_start; | |
1434 | OP * xcv_root; | |
1435 | void (*xcv_xsub) (pTHX_ CV*); | |
1436 | ANY xcv_xsubany; | |
1437 | GV * xcv_gv; | |
1438 | char * xcv_file; | |
1439 | long xcv_depth; /* >= 2 indicates recursive call */ | |
1440 | AV * xcv_padlist; | |
1441 | CV * xcv_outside; | |
1442 | EOT | |
1443 | print <<'EOT' if $] < 5.009; | |
1444 | #ifdef USE_5005THREADS | |
1445 | perl_mutex *xcv_mutexp; | |
1446 | struct perl_thread *xcv_owner; /* current owner thread */ | |
1447 | #endif /* USE_5005THREADS */ | |
1448 | EOT | |
1449 | print <<'EOT'; | |
1450 | cv_flags_t xcv_flags; | |
1451 | U32 xcv_outside_seq; /* the COP sequence (at the point of our | |
1452 | * compilation) in the lexically enclosing | |
1453 | * sub */ | |
1454 | } XPVCV_or_similar; | |
1455 | #define ANYINIT(i) i | |
1456 | #else | |
1457 | #define XPVCV_or_similar XPVCV | |
1458 | #define ANYINIT(i) {i} | |
1459 | #endif /* BROKEN_UNION_INIT */ | |
1460 | #define Nullany ANYINIT(0) | |
1461 | ||
1462 | #define UNUSED 0 | |
1463 | #define sym_0 0 | |
1464 | EOT | |
1465 | print "static GV *gv_list[$gv_index];\n" if $gv_index; | |
1466 | print "\n"; | |
1467 | } | |
1468 | ||
1469 | ||
1470 | sub output_boilerplate { | |
1471 | print <<'EOT'; | |
1472 | #include "EXTERN.h" | |
1473 | #include "perl.h" | |
1474 | #include "XSUB.h" | |
1475 | ||
1476 | /* Workaround for mapstart: the only op which needs a different ppaddr */ | |
1477 | #undef Perl_pp_mapstart | |
1478 | #define Perl_pp_mapstart Perl_pp_grepstart | |
1479 | #undef OP_MAPSTART | |
1480 | #define OP_MAPSTART OP_GREPSTART | |
1481 | #define XS_DynaLoader_boot_DynaLoader boot_DynaLoader | |
1482 | EXTERN_C void boot_DynaLoader (pTHX_ CV* cv); | |
1483 | ||
1484 | static void xs_init (pTHX); | |
1485 | static void dl_init (pTHX); | |
1486 | static PerlInterpreter *my_perl; | |
1487 | EOT | |
1488 | } | |
1489 | ||
1490 | sub init_op_addr { | |
1491 | my( $op_type, $num ) = @_; | |
1492 | my $op_list = $op_type."_list"; | |
1493 | ||
1494 | $init->add( split /\n/, <<EOT ); | |
1495 | { | |
1496 | int i; | |
1497 | ||
1498 | for( i = 0; i < ${num}; ++i ) | |
1499 | { | |
1500 | ${op_list}\[i].op_ppaddr = PL_ppaddr[INT2PTR(int,${op_list}\[i].op_ppaddr)]; | |
1501 | } | |
1502 | } | |
1503 | EOT | |
1504 | } | |
1505 | ||
1506 | sub init_op_warn { | |
1507 | my( $op_type, $num ) = @_; | |
1508 | my $op_list = $op_type."_list"; | |
1509 | ||
1510 | # for resons beyond imagination, MSVC5 considers pWARN_ALL non-const | |
1511 | $init->add( split /\n/, <<EOT ); | |
1512 | { | |
1513 | int i; | |
1514 | ||
1515 | for( i = 0; i < ${num}; ++i ) | |
1516 | { | |
1517 | switch( (int)(${op_list}\[i].cop_warnings) ) | |
1518 | { | |
1519 | case 1: | |
1520 | ${op_list}\[i].cop_warnings = pWARN_ALL; | |
1521 | break; | |
1522 | case 2: | |
1523 | ${op_list}\[i].cop_warnings = pWARN_NONE; | |
1524 | break; | |
1525 | case 3: | |
1526 | ${op_list}\[i].cop_warnings = pWARN_STD; | |
1527 | break; | |
1528 | default: | |
1529 | break; | |
1530 | } | |
1531 | } | |
1532 | } | |
1533 | EOT | |
1534 | } | |
1535 | ||
1536 | sub output_main { | |
1537 | print <<'EOT'; | |
1538 | /* if USE_IMPLICIT_SYS, we need a 'real' exit */ | |
1539 | #if defined(exit) | |
1540 | #undef exit | |
1541 | #endif | |
1542 | ||
1543 | int | |
1544 | main(int argc, char **argv, char **env) | |
1545 | { | |
1546 | int exitstatus; | |
1547 | int i; | |
1548 | char **fakeargv; | |
1549 | GV* tmpgv; | |
1550 | SV* tmpsv; | |
1551 | int options_count; | |
1552 | ||
1553 | PERL_SYS_INIT3(&argc,&argv,&env); | |
1554 | ||
1555 | if (!PL_do_undump) { | |
1556 | my_perl = perl_alloc(); | |
1557 | if (!my_perl) | |
1558 | exit(1); | |
1559 | perl_construct( my_perl ); | |
1560 | PL_perl_destruct_level = 0; | |
1561 | } | |
1562 | EOT | |
1563 | if( $ithreads ) { | |
1564 | # XXX init free elems! | |
1565 | my $pad_len = regex_padav->FILL + 1 - 1; # first is an avref | |
1566 | ||
1567 | print <<EOT; | |
1568 | #ifdef USE_ITHREADS | |
1569 | for( i = 0; i < $pad_len; ++i ) { | |
1570 | av_push( PL_regex_padav, newSViv(0) ); | |
1571 | } | |
1572 | PL_regex_pad = AvARRAY( PL_regex_padav ); | |
1573 | #endif | |
1574 | EOT | |
1575 | } | |
1576 | ||
1577 | print <<'EOT'; | |
1578 | #ifdef CSH | |
1579 | if (!PL_cshlen) | |
1580 | PL_cshlen = strlen(PL_cshname); | |
1581 | #endif | |
1582 | ||
1583 | #ifdef ALLOW_PERL_OPTIONS | |
1584 | #define EXTRA_OPTIONS 3 | |
1585 | #else | |
1586 | #define EXTRA_OPTIONS 4 | |
1587 | #endif /* ALLOW_PERL_OPTIONS */ | |
1588 | Newx(fakeargv, argc + EXTRA_OPTIONS + 1, char *); | |
1589 | ||
1590 | fakeargv[0] = argv[0]; | |
1591 | fakeargv[1] = "-e"; | |
1592 | fakeargv[2] = ""; | |
1593 | options_count = 3; | |
1594 | EOT | |
1595 | # honour -T | |
1596 | print <<EOT; | |
1597 | if( ${^TAINT} ) { | |
1598 | fakeargv[options_count] = "-T"; | |
1599 | ++options_count; | |
1600 | } | |
1601 | EOT | |
1602 | print <<'EOT'; | |
1603 | #ifndef ALLOW_PERL_OPTIONS | |
1604 | fakeargv[options_count] = "--"; | |
1605 | ++options_count; | |
1606 | #endif /* ALLOW_PERL_OPTIONS */ | |
1607 | for (i = 1; i < argc; i++) | |
1608 | fakeargv[i + options_count - 1] = argv[i]; | |
1609 | fakeargv[argc + options_count - 1] = 0; | |
1610 | ||
1611 | exitstatus = perl_parse(my_perl, xs_init, argc + options_count - 1, | |
1612 | fakeargv, NULL); | |
1613 | ||
1614 | if (exitstatus) | |
1615 | exit( exitstatus ); | |
1616 | ||
1617 | TAINT; | |
1618 | EOT | |
1619 | ||
1620 | if( $use_perl_script_name ) { | |
1621 | my $dollar_0 = $0; | |
1622 | $dollar_0 =~ s/\\/\\\\/g; | |
1623 | $dollar_0 = '"' . $dollar_0 . '"'; | |
1624 | ||
1625 | print <<EOT; | |
1626 | if ((tmpgv = gv_fetchpv("0",TRUE, SVt_PV))) {/* $0 */ | |
1627 | tmpsv = GvSV(tmpgv); | |
1628 | sv_setpv(tmpsv, ${dollar_0}); | |
1629 | SvSETMAGIC(tmpsv); | |
1630 | } | |
1631 | EOT | |
1632 | } | |
1633 | else { | |
1634 | print <<EOT; | |
1635 | if ((tmpgv = gv_fetchpv("0",TRUE, SVt_PV))) {/* $0 */ | |
1636 | tmpsv = GvSV(tmpgv); | |
1637 | sv_setpv(tmpsv, argv[0]); | |
1638 | SvSETMAGIC(tmpsv); | |
1639 | } | |
1640 | EOT | |
1641 | } | |
1642 | ||
1643 | print <<'EOT'; | |
1644 | if ((tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))) {/* $^X */ | |
1645 | tmpsv = GvSV(tmpgv); | |
1646 | #ifdef WIN32 | |
1647 | sv_setpv(tmpsv,"perl.exe"); | |
1648 | #else | |
1649 | sv_setpv(tmpsv,"perl"); | |
1650 | #endif | |
1651 | SvSETMAGIC(tmpsv); | |
1652 | } | |
1653 | ||
1654 | TAINT_NOT; | |
1655 | ||
1656 | /* PL_main_cv = PL_compcv; */ | |
1657 | PL_compcv = 0; | |
1658 | ||
1659 | exitstatus = perl_init(); | |
1660 | if (exitstatus) | |
1661 | exit( exitstatus ); | |
1662 | dl_init(aTHX); | |
1663 | ||
1664 | exitstatus = perl_run( my_perl ); | |
1665 | ||
1666 | perl_destruct( my_perl ); | |
1667 | perl_free( my_perl ); | |
1668 | ||
1669 | PERL_SYS_TERM(); | |
1670 | ||
1671 | exit( exitstatus ); | |
1672 | } | |
1673 | ||
1674 | /* yanked from perl.c */ | |
1675 | static void | |
1676 | xs_init(pTHX) | |
1677 | { | |
1678 | char *file = __FILE__; | |
1679 | dTARG; | |
1680 | dSP; | |
1681 | EOT | |
1682 | print "\n#ifdef USE_DYNAMIC_LOADING"; | |
1683 | print qq/\n\tnewXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);/; | |
1684 | print "\n#endif\n" ; | |
1685 | # delete $xsub{'DynaLoader'}; | |
1686 | delete $xsub{'UNIVERSAL'}; | |
1687 | print("/* bootstrapping code*/\n\tSAVETMPS;\n"); | |
1688 | print("\ttarg=sv_newmortal();\n"); | |
1689 | print "#ifdef USE_DYNAMIC_LOADING\n"; | |
1690 | print "\tPUSHMARK(sp);\n"; | |
1691 | print qq/\tXPUSHp("DynaLoader",strlen("DynaLoader"));\n/; | |
1692 | print qq/\tPUTBACK;\n/; | |
1693 | print "\tboot_DynaLoader(aTHX_ NULL);\n"; | |
1694 | print qq/\tSPAGAIN;\n/; | |
1695 | print "#endif\n"; | |
1696 | foreach my $stashname (keys %xsub){ | |
1697 | if ($xsub{$stashname} !~ m/Dynamic/ ) { | |
1698 | my $stashxsub=$stashname; | |
1699 | $stashxsub =~ s/::/__/g; | |
1700 | print "\tPUSHMARK(sp);\n"; | |
1701 | print qq/\tXPUSHp("$stashname",strlen("$stashname"));\n/; | |
1702 | print qq/\tPUTBACK;\n/; | |
1703 | print "\tboot_$stashxsub(aTHX_ NULL);\n"; | |
1704 | print qq/\tSPAGAIN;\n/; | |
1705 | } | |
1706 | } | |
1707 | print("\tFREETMPS;\n/* end bootstrapping code */\n"); | |
1708 | print "}\n"; | |
1709 | ||
1710 | print <<'EOT'; | |
1711 | static void | |
1712 | dl_init(pTHX) | |
1713 | { | |
1714 | char *file = __FILE__; | |
1715 | dTARG; | |
1716 | dSP; | |
1717 | EOT | |
1718 | print("/* Dynamicboot strapping code*/\n\tSAVETMPS;\n"); | |
1719 | print("\ttarg=sv_newmortal();\n"); | |
1720 | foreach my $stashname (@DynaLoader::dl_modules) { | |
1721 | warn "Loaded $stashname\n"; | |
1722 | if (exists($xsub{$stashname}) && $xsub{$stashname} =~ m/Dynamic/) { | |
1723 | my $stashxsub=$stashname; | |
1724 | $stashxsub =~ s/::/__/g; | |
1725 | print "\tPUSHMARK(sp);\n"; | |
1726 | print qq/\tXPUSHp("$stashname",/,length($stashname),qq/);\n/; | |
1727 | print qq/\tPUTBACK;\n/; | |
1728 | print "#ifdef USE_DYNAMIC_LOADING\n"; | |
1729 | warn "bootstrapping $stashname added to xs_init\n"; | |
1730 | if( $xsub{$stashname} eq 'Dynamic' ) { | |
1731 | print qq/\tperl_call_method("bootstrap",G_DISCARD);\n/; | |
1732 | } | |
1733 | else { | |
1734 | print qq/\tperl_call_pv("XSLoader::load",G_DISCARD);\n/; | |
1735 | } | |
1736 | print "#else\n"; | |
1737 | print "\tboot_$stashxsub(aTHX_ NULL);\n"; | |
1738 | print "#endif\n"; | |
1739 | print qq/\tSPAGAIN;\n/; | |
1740 | } | |
1741 | } | |
1742 | print("\tFREETMPS;\n/* end Dynamic bootstrapping code */\n"); | |
1743 | print "}\n"; | |
1744 | } | |
1745 | sub dump_symtable { | |
1746 | # For debugging | |
1747 | my ($sym, $val); | |
1748 | warn "----Symbol table:\n"; | |
1749 | while (($sym, $val) = each %symtable) { | |
1750 | warn "$sym => $val\n"; | |
1751 | } | |
1752 | warn "---End of symbol table\n"; | |
1753 | } | |
1754 | ||
1755 | sub save_object { | |
1756 | my $sv; | |
1757 | foreach $sv (@_) { | |
1758 | svref_2object($sv)->save; | |
1759 | } | |
1760 | } | |
1761 | ||
1762 | sub Dummy_BootStrap { } | |
1763 | ||
1764 | sub B::GV::savecv | |
1765 | { | |
1766 | my $gv = shift; | |
1767 | my $package=$gv->STASH->NAME; | |
1768 | my $name = $gv->NAME; | |
1769 | my $cv = $gv->CV; | |
1770 | my $sv = $gv->SV; | |
1771 | my $av = $gv->AV; | |
1772 | my $hv = $gv->HV; | |
1773 | ||
1774 | my $fullname = $gv->STASH->NAME . "::" . $gv->NAME; | |
1775 | ||
1776 | # We may be looking at this package just because it is a branch in the | |
1777 | # symbol table which is on the path to a package which we need to save | |
1778 | # e.g. this is 'Getopt' and we need to save 'Getopt::Long' | |
1779 | # | |
1780 | return unless ($unused_sub_packages{$package}); | |
1781 | return unless ($$cv || $$av || $$sv || $$hv); | |
1782 | $gv->save; | |
1783 | } | |
1784 | ||
1785 | sub mark_package | |
1786 | { | |
1787 | my $package = shift; | |
1788 | unless ($unused_sub_packages{$package}) | |
1789 | { | |
1790 | no strict 'refs'; | |
1791 | $unused_sub_packages{$package} = 1; | |
1792 | if (defined @{$package.'::ISA'}) | |
1793 | { | |
1794 | foreach my $isa (@{$package.'::ISA'}) | |
1795 | { | |
1796 | if ($isa eq 'DynaLoader') | |
1797 | { | |
1798 | unless (defined(&{$package.'::bootstrap'})) | |
1799 | { | |
1800 | warn "Forcing bootstrap of $package\n"; | |
1801 | eval { $package->bootstrap }; | |
1802 | } | |
1803 | } | |
1804 | # else | |
1805 | { | |
1806 | unless ($unused_sub_packages{$isa}) | |
1807 | { | |
1808 | warn "$isa saved (it is in $package\'s \@ISA)\n"; | |
1809 | mark_package($isa); | |
1810 | } | |
1811 | } | |
1812 | } | |
1813 | } | |
1814 | } | |
1815 | return 1; | |
1816 | } | |
1817 | ||
1818 | sub should_save | |
1819 | { | |
1820 | no strict qw(vars refs); | |
1821 | my $package = shift; | |
1822 | $package =~ s/::$//; | |
1823 | return $unused_sub_packages{$package} = 0 if ($package =~ /::::/); # skip ::::ISA::CACHE etc. | |
1824 | # warn "Considering $package\n";#debug | |
1825 | foreach my $u (grep($unused_sub_packages{$_},keys %unused_sub_packages)) | |
1826 | { | |
1827 | # If this package is a prefix to something we are saving, traverse it | |
1828 | # but do not mark it for saving if it is not already | |
1829 | # e.g. to get to Getopt::Long we need to traverse Getopt but need | |
1830 | # not save Getopt | |
1831 | return 1 if ($u =~ /^$package\:\:/); | |
1832 | } | |
1833 | if (exists $unused_sub_packages{$package}) | |
1834 | { | |
1835 | # warn "Cached $package is ".$unused_sub_packages{$package}."\n"; | |
1836 | delete_unsaved_hashINC($package) unless $unused_sub_packages{$package} ; | |
1837 | return $unused_sub_packages{$package}; | |
1838 | } | |
1839 | # Omit the packages which we use (and which cause grief | |
1840 | # because of fancy "goto &$AUTOLOAD" stuff). | |
1841 | # XXX Surely there must be a nicer way to do this. | |
1842 | if ($package eq "FileHandle" || $package eq "Config" || | |
1843 | $package eq "SelectSaver" || $package =~/^(B|IO)::/) | |
1844 | { | |
1845 | delete_unsaved_hashINC($package); | |
1846 | return $unused_sub_packages{$package} = 0; | |
1847 | } | |
1848 | # Now see if current package looks like an OO class this is probably too strong. | |
1849 | foreach my $m (qw(new DESTROY TIESCALAR TIEARRAY TIEHASH TIEHANDLE)) | |
1850 | { | |
1851 | if (UNIVERSAL::can($package, $m)) | |
1852 | { | |
1853 | warn "$package has method $m: saving package\n";#debug | |
1854 | return mark_package($package); | |
1855 | } | |
1856 | } | |
1857 | delete_unsaved_hashINC($package); | |
1858 | return $unused_sub_packages{$package} = 0; | |
1859 | } | |
1860 | sub delete_unsaved_hashINC{ | |
1861 | my $packname=shift; | |
1862 | $packname =~ s/\:\:/\//g; | |
1863 | $packname .= '.pm'; | |
1864 | # warn "deleting $packname" if $INC{$packname} ;# debug | |
1865 | delete $INC{$packname}; | |
1866 | } | |
1867 | sub walkpackages | |
1868 | { | |
1869 | my ($symref, $recurse, $prefix) = @_; | |
1870 | my $sym; | |
1871 | my $ref; | |
1872 | no strict 'vars'; | |
1873 | $prefix = '' unless defined $prefix; | |
1874 | while (($sym, $ref) = each %$symref) | |
1875 | { | |
1876 | local(*glob); | |
1877 | *glob = $ref; | |
1878 | if ($sym =~ /::$/) | |
1879 | { | |
1880 | $sym = $prefix . $sym; | |
1881 | if ($sym ne "main::" && $sym ne "<none>::" && &$recurse($sym)) | |
1882 | { | |
1883 | walkpackages(\%glob, $recurse, $sym); | |
1884 | } | |
1885 | } | |
1886 | } | |
1887 | } | |
1888 | ||
1889 | ||
1890 | sub save_unused_subs | |
1891 | { | |
1892 | no strict qw(refs); | |
1893 | &descend_marked_unused; | |
1894 | warn "Prescan\n"; | |
1895 | walkpackages(\%{"main::"}, sub { should_save($_[0]); return 1 }); | |
1896 | warn "Saving methods\n"; | |
1897 | walksymtable(\%{"main::"}, "savecv", \&should_save); | |
1898 | } | |
1899 | ||
1900 | sub save_context | |
1901 | { | |
1902 | my $curpad_nam = (comppadlist->ARRAY)[0]->save; | |
1903 | my $curpad_sym = (comppadlist->ARRAY)[1]->save; | |
1904 | my $inc_hv = svref_2object(\%INC)->save; | |
1905 | my $inc_av = svref_2object(\@INC)->save; | |
1906 | my $amagic_generate= amagic_generation; | |
1907 | $init->add( "PL_curpad = AvARRAY($curpad_sym);", | |
1908 | "GvHV(PL_incgv) = $inc_hv;", | |
1909 | "GvAV(PL_incgv) = $inc_av;", | |
1910 | "av_store(CvPADLIST(PL_main_cv),0,SvREFCNT_inc($curpad_nam));", | |
1911 | "av_store(CvPADLIST(PL_main_cv),1,SvREFCNT_inc($curpad_sym));", | |
1912 | "PL_amagic_generation= $amagic_generate;" ); | |
1913 | } | |
1914 | ||
1915 | sub descend_marked_unused { | |
1916 | foreach my $pack (keys %unused_sub_packages) | |
1917 | { | |
1918 | mark_package($pack); | |
1919 | } | |
1920 | } | |
1921 | ||
1922 | sub save_main { | |
1923 | # this is mainly for the test suite | |
1924 | my $warner = $SIG{__WARN__}; | |
1925 | local $SIG{__WARN__} = sub { print STDERR @_ }; | |
1926 | ||
1927 | warn "Starting compile\n"; | |
1928 | warn "Walking tree\n"; | |
1929 | seek(STDOUT,0,0); #exclude print statements in BEGIN{} into output | |
1930 | walkoptree(main_root, "save"); | |
1931 | warn "done main optree, walking symtable for extras\n" if $debug_cv; | |
1932 | save_unused_subs(); | |
1933 | # XSLoader was used, force saving of XSLoader::load | |
1934 | if( $use_xsloader ) { | |
1935 | my $cv = svref_2object( \&XSLoader::load ); | |
1936 | $cv->save; | |
1937 | } | |
1938 | # save %SIG ( in case it was set in a BEGIN block ) | |
1939 | if( $save_sig ) { | |
1940 | local $SIG{__WARN__} = $warner; | |
1941 | $init->no_split; | |
1942 | $init->add("{", "\tHV* hv = get_hv(\"main::SIG\",1);" ); | |
1943 | foreach my $k ( keys %SIG ) { | |
1944 | next unless ref $SIG{$k}; | |
1945 | my $cv = svref_2object( \$SIG{$k} ); | |
1946 | my $sv = $cv->save; | |
1947 | $init->add('{',sprintf 'SV* sv = (SV*)%s;', $sv ); | |
1948 | $init->add(sprintf("\thv_store(hv, %s, %u, %s, %s);", | |
1949 | cstring($k),length(pack "a*",$k), | |
1950 | 'sv', hash($k))); | |
1951 | $init->add('mg_set(sv);','}'); | |
1952 | } | |
1953 | $init->add('}'); | |
1954 | $init->split; | |
1955 | } | |
1956 | # honour -w | |
1957 | $init->add( sprintf " PL_dowarn = ( %s ) ? G_WARN_ON : G_WARN_OFF;", $^W ); | |
1958 | # | |
1959 | my $init_av = init_av->save; | |
1960 | my $end_av = end_av->save; | |
1961 | $init->add(sprintf("PL_main_root = s\\_%x;", ${main_root()}), | |
1962 | sprintf("PL_main_start = s\\_%x;", ${main_start()}), | |
1963 | "PL_initav = (AV *) $init_av;", | |
1964 | "PL_endav = (AV*) $end_av;"); | |
1965 | save_context(); | |
1966 | # init op addrs ( must be the last action, otherwise | |
1967 | # some ops might not be initialized | |
1968 | if( $optimize_ppaddr ) { | |
1969 | foreach my $i ( @op_sections ) { | |
1970 | my $section = $$i; | |
1971 | next unless $section->index >= 0; | |
1972 | init_op_addr( $section->name, $section->index + 1); | |
1973 | } | |
1974 | } | |
1975 | init_op_warn( $copsect->name, $copsect->index + 1) | |
1976 | if $optimize_warn_sv && $copsect->index >= 0; | |
1977 | ||
1978 | warn "Writing output\n"; | |
1979 | output_boilerplate(); | |
1980 | print "\n"; | |
1981 | output_all("perl_init"); | |
1982 | print "\n"; | |
1983 | output_main(); | |
1984 | } | |
1985 | ||
1986 | sub init_sections { | |
1987 | my @sections = (decl => \$decl, sym => \$symsect, | |
1988 | binop => \$binopsect, condop => \$condopsect, | |
1989 | cop => \$copsect, padop => \$padopsect, | |
1990 | listop => \$listopsect, logop => \$logopsect, | |
1991 | loop => \$loopsect, op => \$opsect, pmop => \$pmopsect, | |
1992 | pvop => \$pvopsect, svop => \$svopsect, unop => \$unopsect, | |
1993 | sv => \$svsect, xpv => \$xpvsect, xpvav => \$xpvavsect, | |
1994 | xpvhv => \$xpvhvsect, xpvcv => \$xpvcvsect, | |
1995 | xpviv => \$xpvivsect, xpvnv => \$xpvnvsect, | |
1996 | xpvmg => \$xpvmgsect, xpvlv => \$xpvlvsect, | |
1997 | xrv => \$xrvsect, xpvbm => \$xpvbmsect, | |
1998 | xpvio => \$xpviosect); | |
1999 | my ($name, $sectref); | |
2000 | while (($name, $sectref) = splice(@sections, 0, 2)) { | |
2001 | $$sectref = new B::C::Section $name, \%symtable, 0; | |
2002 | } | |
2003 | $init = new B::C::InitSection 'init', \%symtable, 0; | |
2004 | } | |
2005 | ||
2006 | sub mark_unused | |
2007 | { | |
2008 | my ($arg,$val) = @_; | |
2009 | $unused_sub_packages{$arg} = $val; | |
2010 | } | |
2011 | ||
2012 | sub compile { | |
2013 | my @options = @_; | |
2014 | my ($option, $opt, $arg); | |
2015 | my @eval_at_startup; | |
2016 | my %option_map = ( 'cog' => \$pv_copy_on_grow, | |
2017 | 'save-data' => \$save_data_fh, | |
2018 | 'ppaddr' => \$optimize_ppaddr, | |
2019 | 'warn-sv' => \$optimize_warn_sv, | |
2020 | 'use-script-name' => \$use_perl_script_name, | |
2021 | 'save-sig-hash' => \$save_sig, | |
2022 | ); | |
2023 | my %optimization_map = ( 0 => [ qw() ], # special case | |
2024 | 1 => [ qw(-fcog) ], | |
2025 | 2 => [ qw(-fwarn-sv -fppaddr) ], | |
2026 | ); | |
2027 | OPTION: | |
2028 | while ($option = shift @options) { | |
2029 | if ($option =~ /^-(.)(.*)/) { | |
2030 | $opt = $1; | |
2031 | $arg = $2; | |
2032 | } else { | |
2033 | unshift @options, $option; | |
2034 | last OPTION; | |
2035 | } | |
2036 | if ($opt eq "-" && $arg eq "-") { | |
2037 | shift @options; | |
2038 | last OPTION; | |
2039 | } | |
2040 | if ($opt eq "w") { | |
2041 | $warn_undefined_syms = 1; | |
2042 | } elsif ($opt eq "D") { | |
2043 | $arg ||= shift @options; | |
2044 | foreach $arg (split(//, $arg)) { | |
2045 | if ($arg eq "o") { | |
2046 | B->debug(1); | |
2047 | } elsif ($arg eq "c") { | |
2048 | $debug_cops = 1; | |
2049 | } elsif ($arg eq "A") { | |
2050 | $debug_av = 1; | |
2051 | } elsif ($arg eq "C") { | |
2052 | $debug_cv = 1; | |
2053 | } elsif ($arg eq "M") { | |
2054 | $debug_mg = 1; | |
2055 | } else { | |
2056 | warn "ignoring unknown debug option: $arg\n"; | |
2057 | } | |
2058 | } | |
2059 | } elsif ($opt eq "o") { | |
2060 | $arg ||= shift @options; | |
2061 | open(STDOUT, ">$arg") or return "$arg: $!\n"; | |
2062 | } elsif ($opt eq "v") { | |
2063 | $verbose = 1; | |
2064 | } elsif ($opt eq "u") { | |
2065 | $arg ||= shift @options; | |
2066 | mark_unused($arg,undef); | |
2067 | } elsif ($opt eq "f") { | |
2068 | $arg ||= shift @options; | |
2069 | $arg =~ m/(no-)?(.*)/; | |
2070 | my $no = defined($1) && $1 eq 'no-'; | |
2071 | $arg = $no ? $2 : $arg; | |
2072 | if( exists $option_map{$arg} ) { | |
2073 | ${$option_map{$arg}} = !$no; | |
2074 | } else { | |
2075 | die "Invalid optimization '$arg'"; | |
2076 | } | |
2077 | } elsif ($opt eq "O") { | |
2078 | $arg = 1 if $arg eq ""; | |
2079 | my @opt; | |
2080 | foreach my $i ( 1 .. $arg ) { | |
2081 | push @opt, @{$optimization_map{$i}} | |
2082 | if exists $optimization_map{$i}; | |
2083 | } | |
2084 | unshift @options, @opt; | |
2085 | } elsif ($opt eq "e") { | |
2086 | push @eval_at_startup, $arg; | |
2087 | } elsif ($opt eq "l") { | |
2088 | $max_string_len = $arg; | |
2089 | } | |
2090 | } | |
2091 | init_sections(); | |
2092 | foreach my $i ( @eval_at_startup ) { | |
2093 | $init->add_eval( $i ); | |
2094 | } | |
2095 | if (@options) { | |
2096 | return sub { | |
2097 | my $objname; | |
2098 | foreach $objname (@options) { | |
2099 | eval "save_object(\\$objname)"; | |
2100 | } | |
2101 | output_all(); | |
2102 | } | |
2103 | } else { | |
2104 | return sub { save_main() }; | |
2105 | } | |
2106 | } | |
2107 | ||
2108 | 1; | |
2109 | ||
2110 | __END__ | |
2111 | ||
2112 | =head1 NAME | |
2113 | ||
2114 | B::C - Perl compiler's C backend | |
2115 | ||
2116 | =head1 SYNOPSIS | |
2117 | ||
2118 | perl -MO=C[,OPTIONS] foo.pl | |
2119 | ||
2120 | =head1 DESCRIPTION | |
2121 | ||
2122 | This compiler backend takes Perl source and generates C source code | |
2123 | corresponding to the internal structures that perl uses to run | |
2124 | your program. When the generated C source is compiled and run, it | |
2125 | cuts out the time which perl would have taken to load and parse | |
2126 | your program into its internal semi-compiled form. That means that | |
2127 | compiling with this backend will not help improve the runtime | |
2128 | execution speed of your program but may improve the start-up time. | |
2129 | Depending on the environment in which your program runs this may be | |
2130 | either a help or a hindrance. | |
2131 | ||
2132 | =head1 OPTIONS | |
2133 | ||
2134 | If there are any non-option arguments, they are taken to be | |
2135 | names of objects to be saved (probably doesn't work properly yet). | |
2136 | Without extra arguments, it saves the main program. | |
2137 | ||
2138 | =over 4 | |
2139 | ||
2140 | =item B<-ofilename> | |
2141 | ||
2142 | Output to filename instead of STDOUT | |
2143 | ||
2144 | =item B<-v> | |
2145 | ||
2146 | Verbose compilation (currently gives a few compilation statistics). | |
2147 | ||
2148 | =item B<--> | |
2149 | ||
2150 | Force end of options | |
2151 | ||
2152 | =item B<-uPackname> | |
2153 | ||
2154 | Force apparently unused subs from package Packname to be compiled. | |
2155 | This allows programs to use eval "foo()" even when sub foo is never | |
2156 | seen to be used at compile time. The down side is that any subs which | |
2157 | really are never used also have code generated. This option is | |
2158 | necessary, for example, if you have a signal handler foo which you | |
2159 | initialise with C<$SIG{BAR} = "foo">. A better fix, though, is just | |
2160 | to change it to C<$SIG{BAR} = \&foo>. You can have multiple B<-u> | |
2161 | options. The compiler tries to figure out which packages may possibly | |
2162 | have subs in which need compiling but the current version doesn't do | |
2163 | it very well. In particular, it is confused by nested packages (i.e. | |
2164 | of the form C<A::B>) where package C<A> does not contain any subs. | |
2165 | ||
2166 | =item B<-D> | |
2167 | ||
2168 | Debug options (concatenated or separate flags like C<perl -D>). | |
2169 | ||
2170 | =item B<-Do> | |
2171 | ||
2172 | OPs, prints each OP as it's processed | |
2173 | ||
2174 | =item B<-Dc> | |
2175 | ||
2176 | COPs, prints COPs as processed (incl. file & line num) | |
2177 | ||
2178 | =item B<-DA> | |
2179 | ||
2180 | prints AV information on saving | |
2181 | ||
2182 | =item B<-DC> | |
2183 | ||
2184 | prints CV information on saving | |
2185 | ||
2186 | =item B<-DM> | |
2187 | ||
2188 | prints MAGIC information on saving | |
2189 | ||
2190 | =item B<-f> | |
2191 | ||
2192 | Force options/optimisations on or off one at a time. You can explicitly | |
2193 | disable an option using B<-fno-option>. All options default to | |
2194 | B<disabled>. | |
2195 | ||
2196 | =over 4 | |
2197 | ||
2198 | =item B<-fcog> | |
2199 | ||
2200 | Copy-on-grow: PVs declared and initialised statically. | |
2201 | ||
2202 | =item B<-fsave-data> | |
2203 | ||
2204 | Save package::DATA filehandles ( only available with PerlIO ). | |
2205 | ||
2206 | =item B<-fppaddr> | |
2207 | ||
2208 | Optimize the initialization of op_ppaddr. | |
2209 | ||
2210 | =item B<-fwarn-sv> | |
2211 | ||
2212 | Optimize the initialization of cop_warnings. | |
2213 | ||
2214 | =item B<-fuse-script-name> | |
2215 | ||
2216 | Use the script name instead of the program name as $0. | |
2217 | ||
2218 | =item B<-fsave-sig-hash> | |
2219 | ||
2220 | Save compile-time modifications to the %SIG hash. | |
2221 | ||
2222 | =back | |
2223 | ||
2224 | =item B<-On> | |
2225 | ||
2226 | Optimisation level (n = 0, 1, 2, ...). B<-O> means B<-O1>. | |
2227 | ||
2228 | =over 4 | |
2229 | ||
2230 | =item B<-O0> | |
2231 | ||
2232 | Disable all optimizations. | |
2233 | ||
2234 | =item B<-O1> | |
2235 | ||
2236 | Enable B<-fcog>. | |
2237 | ||
2238 | =item B<-O2> | |
2239 | ||
2240 | Enable B<-fppaddr>, B<-fwarn-sv>. | |
2241 | ||
2242 | =back | |
2243 | ||
2244 | =item B<-llimit> | |
2245 | ||
2246 | Some C compilers impose an arbitrary limit on the length of string | |
2247 | constants (e.g. 2048 characters for Microsoft Visual C++). The | |
2248 | B<-llimit> options tells the C backend not to generate string literals | |
2249 | exceeding that limit. | |
2250 | ||
2251 | =back | |
2252 | ||
2253 | =head1 EXAMPLES | |
2254 | ||
2255 | perl -MO=C,-ofoo.c foo.pl | |
2256 | perl cc_harness -o foo foo.c | |
2257 | ||
2258 | Note that C<cc_harness> lives in the C<B> subdirectory of your perl | |
2259 | library directory. The utility called C<perlcc> may also be used to | |
2260 | help make use of this compiler. | |
2261 | ||
2262 | perl -MO=C,-v,-DcA,-l2048 bar.pl > /dev/null | |
2263 | ||
2264 | =head1 BUGS | |
2265 | ||
2266 | Plenty. Current status: experimental. | |
2267 | ||
2268 | =head1 AUTHOR | |
2269 | ||
2270 | Malcolm Beattie, C<mbeattie@sable.ox.ac.uk> | |
2271 | ||
2272 | =cut |