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1 | # C.pm |
2 | # |
1a52ab62 |
3 | # Copyright (c) 1996, 1997, 1998 Malcolm Beattie |
a798dbf2 |
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 | # |
66a2622e |
8 | package B::C::Section; |
28b605d8 |
9 | |
10 | our $VERSION = '1.00'; |
11 | |
66a2622e |
12 | use B (); |
13 | use base B::Section; |
14 | |
15 | sub new |
16 | { |
17 | my $class = shift; |
18 | my $o = $class->SUPER::new(@_); |
19 | push(@$o,[]); |
20 | return $o; |
21 | } |
22 | |
23 | sub add |
24 | { |
25 | my $section = shift; |
26 | push(@{$section->[-1]},@_); |
27 | } |
28 | |
29 | sub index |
30 | { |
31 | my $section = shift; |
32 | return scalar(@{$section->[-1]})-1; |
33 | } |
34 | |
35 | sub output |
36 | { |
37 | my ($section, $fh, $format) = @_; |
38 | my $sym = $section->symtable || {}; |
39 | my $default = $section->default; |
40 | foreach (@{$section->[-1]}) |
41 | { |
42 | s{(s\\_[0-9a-f]+)}{ exists($sym->{$1}) ? $sym->{$1} : $default; }ge; |
43 | printf $fh $format, $_; |
44 | } |
45 | } |
46 | |
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47 | package B::C; |
48 | use Exporter (); |
49 | @ISA = qw(Exporter); |
0cc1d052 |
50 | @EXPORT_OK = qw(output_all output_boilerplate output_main mark_unused |
51 | init_sections set_callback save_unused_subs objsym save_context); |
a798dbf2 |
52 | |
53 | use B qw(minus_c sv_undef walkoptree walksymtable main_root main_start peekop |
54 | class cstring cchar svref_2object compile_stats comppadlist hash |
56eca212 |
55 | threadsv_names main_cv init_av opnumber amagic_generation |
b874ff32 |
56 | AVf_REAL HEf_SVKEY); |
a798dbf2 |
57 | use B::Asmdata qw(@specialsv_name); |
58 | |
59 | use FileHandle; |
60 | use Carp; |
61 | use strict; |
f0cd5c3a |
62 | use Config; |
a798dbf2 |
63 | |
64 | my $hv_index = 0; |
65 | my $gv_index = 0; |
66 | my $re_index = 0; |
67 | my $pv_index = 0; |
68 | my $anonsub_index = 0; |
44887cfa |
69 | my $initsub_index = 0; |
a798dbf2 |
70 | |
71 | my %symtable; |
af765ed9 |
72 | my %xsub; |
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73 | my $warn_undefined_syms; |
74 | my $verbose; |
66a2622e |
75 | my %unused_sub_packages; |
a798dbf2 |
76 | my $nullop_count; |
66a2622e |
77 | my $pv_copy_on_grow = 0; |
a798dbf2 |
78 | my ($debug_cops, $debug_av, $debug_cv, $debug_mg); |
dc333d64 |
79 | my $max_string_len; |
a798dbf2 |
80 | |
81 | my @threadsv_names; |
82 | BEGIN { |
83 | @threadsv_names = threadsv_names(); |
84 | } |
85 | |
86 | # Code sections |
66a2622e |
87 | my ($init, $decl, $symsect, $binopsect, $condopsect, $copsect, |
7934575e |
88 | $padopsect, $listopsect, $logopsect, $loopsect, $opsect, $pmopsect, |
a798dbf2 |
89 | $pvopsect, $svopsect, $unopsect, $svsect, $xpvsect, $xpvavsect, |
90 | $xpvhvsect, $xpvcvsect, $xpvivsect, $xpvnvsect, $xpvmgsect, $xpvlvsect, |
af765ed9 |
91 | $xrvsect, $xpvbmsect, $xpviosect ); |
a798dbf2 |
92 | |
93 | sub walk_and_save_optree; |
94 | my $saveoptree_callback = \&walk_and_save_optree; |
95 | sub set_callback { $saveoptree_callback = shift } |
96 | sub saveoptree { &$saveoptree_callback(@_) } |
97 | |
98 | sub walk_and_save_optree { |
99 | my ($name, $root, $start) = @_; |
100 | walkoptree($root, "save"); |
101 | return objsym($start); |
102 | } |
103 | |
104 | # Current workaround/fix for op_free() trying to free statically |
105 | # defined OPs is to set op_seq = -1 and check for that in op_free(). |
106 | # Instead of hardwiring -1 in place of $op->seq, we use $op_seq |
107 | # so that it can be changed back easily if necessary. In fact, to |
108 | # stop compilers from moaning about a U16 being initialised with an |
109 | # uncast -1 (the printf format is %d so we can't tweak it), we have |
110 | # to "know" that op_seq is a U16 and use 65535. Ugh. |
111 | my $op_seq = 65535; |
112 | |
0cc1d052 |
113 | # Look this up here so we can do just a number compare |
114 | # rather than looking up the name of every BASEOP in B::OP |
115 | my $OP_THREADSV = opnumber('threadsv'); |
a798dbf2 |
116 | |
117 | sub savesym { |
118 | my ($obj, $value) = @_; |
119 | my $sym = sprintf("s\\_%x", $$obj); |
120 | $symtable{$sym} = $value; |
121 | } |
122 | |
123 | sub objsym { |
124 | my $obj = shift; |
125 | return $symtable{sprintf("s\\_%x", $$obj)}; |
126 | } |
127 | |
128 | sub getsym { |
129 | my $sym = shift; |
130 | my $value; |
131 | |
132 | return 0 if $sym eq "sym_0"; # special case |
133 | $value = $symtable{$sym}; |
134 | if (defined($value)) { |
135 | return $value; |
136 | } else { |
137 | warn "warning: undefined symbol $sym\n" if $warn_undefined_syms; |
138 | return "UNUSED"; |
139 | } |
140 | } |
141 | |
142 | sub savepv { |
66a2622e |
143 | my $pv = shift; |
144 | $pv = '' unless defined $pv; # Is this sane ? |
a798dbf2 |
145 | my $pvsym = 0; |
146 | my $pvmax = 0; |
66a2622e |
147 | if ($pv_copy_on_grow) { |
a798dbf2 |
148 | my $cstring = cstring($pv); |
149 | if ($cstring ne "0") { # sic |
150 | $pvsym = sprintf("pv%d", $pv_index++); |
151 | $decl->add(sprintf("static char %s[] = %s;", $pvsym, $cstring)); |
152 | } |
153 | } else { |
154 | $pvmax = length($pv) + 1; |
155 | } |
156 | return ($pvsym, $pvmax); |
157 | } |
158 | |
159 | sub B::OP::save { |
160 | my ($op, $level) = @_; |
2c0b28dd |
161 | my $sym = objsym($op); |
162 | return $sym if defined $sym; |
a798dbf2 |
163 | my $type = $op->type; |
164 | $nullop_count++ unless $type; |
0cc1d052 |
165 | if ($type == $OP_THREADSV) { |
a798dbf2 |
166 | # saves looking up ppaddr but it's a bit naughty to hard code this |
167 | $init->add(sprintf("(void)find_threadsv(%s);", |
168 | cstring($threadsv_names[$op->targ]))); |
169 | } |
dc333d64 |
170 | $opsect->add(sprintf("s\\_%x, s\\_%x, NULL, %u, %u, %u, 0x%x, 0x%x", |
171 | ${$op->next}, ${$op->sibling}, $op->targ, |
a798dbf2 |
172 | $type, $op_seq, $op->flags, $op->private)); |
dc333d64 |
173 | my $ix = $opsect->index; |
174 | $init->add(sprintf("op_list[$ix].op_ppaddr = %s;", $op->ppaddr)); |
175 | savesym($op, "&op_list[$ix]"); |
a798dbf2 |
176 | } |
177 | |
178 | sub B::FAKEOP::new { |
179 | my ($class, %objdata) = @_; |
180 | bless \%objdata, $class; |
181 | } |
182 | |
183 | sub B::FAKEOP::save { |
184 | my ($op, $level) = @_; |
dc333d64 |
185 | $opsect->add(sprintf("%s, %s, NULL, %u, %u, %u, 0x%x, 0x%x", |
186 | $op->next, $op->sibling, $op->targ, |
a798dbf2 |
187 | $op->type, $op_seq, $op->flags, $op->private)); |
dc333d64 |
188 | my $ix = $opsect->index; |
189 | $init->add(sprintf("op_list[$ix].op_ppaddr = %s;", $op->ppaddr)); |
190 | return "&op_list[$ix]"; |
a798dbf2 |
191 | } |
192 | |
193 | sub B::FAKEOP::next { $_[0]->{"next"} || 0 } |
194 | sub B::FAKEOP::type { $_[0]->{type} || 0} |
195 | sub B::FAKEOP::sibling { $_[0]->{sibling} || 0 } |
196 | sub B::FAKEOP::ppaddr { $_[0]->{ppaddr} || 0 } |
197 | sub B::FAKEOP::targ { $_[0]->{targ} || 0 } |
198 | sub B::FAKEOP::flags { $_[0]->{flags} || 0 } |
199 | sub B::FAKEOP::private { $_[0]->{private} || 0 } |
200 | |
201 | sub B::UNOP::save { |
202 | my ($op, $level) = @_; |
2c0b28dd |
203 | my $sym = objsym($op); |
204 | return $sym if defined $sym; |
dc333d64 |
205 | $unopsect->add(sprintf("s\\_%x, s\\_%x, NULL, %u, %u, %u, 0x%x, 0x%x, s\\_%x", |
206 | ${$op->next}, ${$op->sibling}, |
a798dbf2 |
207 | $op->targ, $op->type, $op_seq, $op->flags, |
208 | $op->private, ${$op->first})); |
dc333d64 |
209 | my $ix = $unopsect->index; |
210 | $init->add(sprintf("unop_list[$ix].op_ppaddr = %s;", $op->ppaddr)); |
211 | savesym($op, "(OP*)&unop_list[$ix]"); |
a798dbf2 |
212 | } |
213 | |
214 | sub B::BINOP::save { |
215 | my ($op, $level) = @_; |
2c0b28dd |
216 | my $sym = objsym($op); |
217 | return $sym if defined $sym; |
dc333d64 |
218 | $binopsect->add(sprintf("s\\_%x, s\\_%x, NULL, %u, %u, %u, 0x%x, 0x%x, s\\_%x, s\\_%x", |
219 | ${$op->next}, ${$op->sibling}, |
a798dbf2 |
220 | $op->targ, $op->type, $op_seq, $op->flags, |
221 | $op->private, ${$op->first}, ${$op->last})); |
dc333d64 |
222 | my $ix = $binopsect->index; |
223 | $init->add(sprintf("binop_list[$ix].op_ppaddr = %s;", $op->ppaddr)); |
224 | savesym($op, "(OP*)&binop_list[$ix]"); |
a798dbf2 |
225 | } |
226 | |
227 | sub B::LISTOP::save { |
228 | my ($op, $level) = @_; |
2c0b28dd |
229 | my $sym = objsym($op); |
230 | return $sym if defined $sym; |
117dada2 |
231 | $listopsect->add(sprintf("s\\_%x, s\\_%x, NULL, %u, %u, %u, 0x%x, 0x%x, s\\_%x, s\\_%x", |
dc333d64 |
232 | ${$op->next}, ${$op->sibling}, |
a798dbf2 |
233 | $op->targ, $op->type, $op_seq, $op->flags, |
117dada2 |
234 | $op->private, ${$op->first}, ${$op->last})); |
dc333d64 |
235 | my $ix = $listopsect->index; |
236 | $init->add(sprintf("listop_list[$ix].op_ppaddr = %s;", $op->ppaddr)); |
237 | savesym($op, "(OP*)&listop_list[$ix]"); |
a798dbf2 |
238 | } |
239 | |
240 | sub B::LOGOP::save { |
241 | my ($op, $level) = @_; |
2c0b28dd |
242 | my $sym = objsym($op); |
243 | return $sym if defined $sym; |
dc333d64 |
244 | $logopsect->add(sprintf("s\\_%x, s\\_%x, NULL, %u, %u, %u, 0x%x, 0x%x, s\\_%x, s\\_%x", |
245 | ${$op->next}, ${$op->sibling}, |
a798dbf2 |
246 | $op->targ, $op->type, $op_seq, $op->flags, |
247 | $op->private, ${$op->first}, ${$op->other})); |
dc333d64 |
248 | my $ix = $logopsect->index; |
249 | $init->add(sprintf("logop_list[$ix].op_ppaddr = %s;", $op->ppaddr)); |
250 | savesym($op, "(OP*)&logop_list[$ix]"); |
a798dbf2 |
251 | } |
252 | |
a798dbf2 |
253 | sub B::LOOP::save { |
254 | my ($op, $level) = @_; |
2c0b28dd |
255 | my $sym = objsym($op); |
256 | return $sym if defined $sym; |
a798dbf2 |
257 | #warn sprintf("LOOP: redoop %s, nextop %s, lastop %s\n", |
258 | # peekop($op->redoop), peekop($op->nextop), |
259 | # peekop($op->lastop)); # debug |
117dada2 |
260 | $loopsect->add(sprintf("s\\_%x, s\\_%x, NULL, %u, %u, %u, 0x%x, 0x%x, s\\_%x, s\\_%x, s\\_%x, s\\_%x, s\\_%x", |
dc333d64 |
261 | ${$op->next}, ${$op->sibling}, |
a798dbf2 |
262 | $op->targ, $op->type, $op_seq, $op->flags, |
263 | $op->private, ${$op->first}, ${$op->last}, |
117dada2 |
264 | ${$op->redoop}, ${$op->nextop}, |
a798dbf2 |
265 | ${$op->lastop})); |
dc333d64 |
266 | my $ix = $loopsect->index; |
267 | $init->add(sprintf("loop_list[$ix].op_ppaddr = %s;", $op->ppaddr)); |
268 | savesym($op, "(OP*)&loop_list[$ix]"); |
a798dbf2 |
269 | } |
270 | |
271 | sub B::PVOP::save { |
272 | my ($op, $level) = @_; |
2c0b28dd |
273 | my $sym = objsym($op); |
274 | return $sym if defined $sym; |
dc333d64 |
275 | $pvopsect->add(sprintf("s\\_%x, s\\_%x, NULL, %u, %u, %u, 0x%x, 0x%x, %s", |
276 | ${$op->next}, ${$op->sibling}, |
a798dbf2 |
277 | $op->targ, $op->type, $op_seq, $op->flags, |
278 | $op->private, cstring($op->pv))); |
dc333d64 |
279 | my $ix = $pvopsect->index; |
280 | $init->add(sprintf("pvop_list[$ix].op_ppaddr = %s;", $op->ppaddr)); |
281 | savesym($op, "(OP*)&pvop_list[$ix]"); |
a798dbf2 |
282 | } |
283 | |
284 | sub B::SVOP::save { |
285 | my ($op, $level) = @_; |
2c0b28dd |
286 | my $sym = objsym($op); |
287 | return $sym if defined $sym; |
a798dbf2 |
288 | my $svsym = $op->sv->save; |
dc333d64 |
289 | $svopsect->add(sprintf("s\\_%x, s\\_%x, NULL, %u, %u, %u, 0x%x, 0x%x, Nullsv", |
290 | ${$op->next}, ${$op->sibling}, |
a798dbf2 |
291 | $op->targ, $op->type, $op_seq, $op->flags, |
5712119f |
292 | $op->private)); |
dc333d64 |
293 | my $ix = $svopsect->index; |
294 | $init->add(sprintf("svop_list[$ix].op_ppaddr = %s;", $op->ppaddr)); |
295 | $init->add("svop_list[$ix].op_sv = (SV*)$svsym;"); |
296 | savesym($op, "(OP*)&svop_list[$ix]"); |
a798dbf2 |
297 | } |
298 | |
7934575e |
299 | sub B::PADOP::save { |
a798dbf2 |
300 | my ($op, $level) = @_; |
2c0b28dd |
301 | my $sym = objsym($op); |
302 | return $sym if defined $sym; |
93865851 |
303 | $padopsect->add(sprintf("s\\_%x, s\\_%x, NULL, %u, %u, %u, 0x%x, 0x%x, 0", |
dc333d64 |
304 | ${$op->next}, ${$op->sibling}, |
a798dbf2 |
305 | $op->targ, $op->type, $op_seq, $op->flags, |
306 | $op->private)); |
dc333d64 |
307 | $init->add(sprintf("padop_list[%d].op_ppaddr = %s;", $padopsect->index, $op->ppaddr)); |
308 | my $ix = $padopsect->index; |
309 | $init->add(sprintf("padop_list[$ix].op_padix = %ld;", $op->padix)); |
310 | savesym($op, "(OP*)&padop_list[$ix]"); |
a798dbf2 |
311 | } |
312 | |
313 | sub B::COP::save { |
314 | my ($op, $level) = @_; |
2c0b28dd |
315 | my $sym = objsym($op); |
316 | return $sym if defined $sym; |
57843af0 |
317 | warn sprintf("COP: line %d file %s\n", $op->line, $op->file) |
a798dbf2 |
318 | if $debug_cops; |
93865851 |
319 | $copsect->add(sprintf("s\\_%x, s\\_%x, NULL, %u, %u, %u, 0x%x, 0x%x, %s, NULL, NULL, %u, %d, %u", |
dc333d64 |
320 | ${$op->next}, ${$op->sibling}, |
a798dbf2 |
321 | $op->targ, $op->type, $op_seq, $op->flags, |
322 | $op->private, cstring($op->label), $op->cop_seq, |
323 | $op->arybase, $op->line)); |
dc333d64 |
324 | my $ix = $copsect->index; |
325 | $init->add(sprintf("cop_list[$ix].op_ppaddr = %s;", $op->ppaddr)); |
326 | $init->add(sprintf("CopFILE_set(&cop_list[$ix], %s);", cstring($op->file)), |
327 | sprintf("CopSTASHPV_set(&cop_list[$ix], %s);", cstring($op->stashpv))); |
328 | savesym($op, "(OP*)&cop_list[$ix]"); |
a798dbf2 |
329 | } |
330 | |
331 | sub B::PMOP::save { |
332 | my ($op, $level) = @_; |
2c0b28dd |
333 | my $sym = objsym($op); |
334 | return $sym if defined $sym; |
a798dbf2 |
335 | my $replroot = $op->pmreplroot; |
336 | my $replstart = $op->pmreplstart; |
337 | my $replrootfield = sprintf("s\\_%x", $$replroot); |
338 | my $replstartfield = sprintf("s\\_%x", $$replstart); |
339 | my $gvsym; |
340 | my $ppaddr = $op->ppaddr; |
341 | if ($$replroot) { |
342 | # OP_PUSHRE (a mutated version of OP_MATCH for the regexp |
343 | # argument to a split) stores a GV in op_pmreplroot instead |
344 | # of a substitution syntax tree. We don't want to walk that... |
3f872cb9 |
345 | if ($op->name eq "pushre") { |
a798dbf2 |
346 | $gvsym = $replroot->save; |
347 | # warn "PMOP::save saving a pp_pushre with GV $gvsym\n"; # debug |
348 | $replrootfield = 0; |
349 | } else { |
350 | $replstartfield = saveoptree("*ignore*", $replroot, $replstart); |
351 | } |
352 | } |
353 | # pmnext handling is broken in perl itself, I think. Bad op_pmnext |
354 | # fields aren't noticed in perl's runtime (unless you try reset) but we |
355 | # segfault when trying to dereference it to find op->op_pmnext->op_type |
117dada2 |
356 | $pmopsect->add(sprintf("s\\_%x, s\\_%x, NULL, %u, %u, %u, 0x%x, 0x%x, s\\_%x, s\\_%x, %s, %s, 0, 0, 0x%x, 0x%x", |
dc333d64 |
357 | ${$op->next}, ${$op->sibling}, $op->targ, |
a798dbf2 |
358 | $op->type, $op_seq, $op->flags, $op->private, |
117dada2 |
359 | ${$op->first}, ${$op->last}, |
a798dbf2 |
360 | $replrootfield, $replstartfield, |
361 | $op->pmflags, $op->pmpermflags,)); |
362 | my $pm = sprintf("pmop_list[%d]", $pmopsect->index); |
dc333d64 |
363 | $init->add(sprintf("$pm.op_ppaddr = %s;", $ppaddr)); |
a798dbf2 |
364 | my $re = $op->precomp; |
365 | if (defined($re)) { |
366 | my $resym = sprintf("re%d", $re_index++); |
367 | $decl->add(sprintf("static char *$resym = %s;", cstring($re))); |
f5eac215 |
368 | $init->add(sprintf("PM_SETRE(&$pm,pregcomp($resym, $resym + %u, &$pm));", |
a798dbf2 |
369 | length($re))); |
370 | } |
371 | if ($gvsym) { |
372 | $init->add("$pm.op_pmreplroot = (OP*)$gvsym;"); |
373 | } |
dc333d64 |
374 | savesym($op, "(OP*)&$pm"); |
a798dbf2 |
375 | } |
376 | |
377 | sub B::SPECIAL::save { |
378 | my ($sv) = @_; |
379 | # special case: $$sv is not the address but an index into specialsv_list |
380 | # warn "SPECIAL::save specialsv $$sv\n"; # debug |
381 | my $sym = $specialsv_name[$$sv]; |
382 | if (!defined($sym)) { |
383 | confess "unknown specialsv index $$sv passed to B::SPECIAL::save"; |
384 | } |
385 | return $sym; |
386 | } |
387 | |
388 | sub B::OBJECT::save {} |
389 | |
390 | sub B::NULL::save { |
391 | my ($sv) = @_; |
392 | my $sym = objsym($sv); |
393 | return $sym if defined $sym; |
394 | # warn "Saving SVt_NULL SV\n"; # debug |
395 | # debug |
87d7fd28 |
396 | if ($$sv == 0) { |
397 | warn "NULL::save for sv = 0 called from @{[(caller(1))[3]]}\n"; |
398 | return savesym($sv, "Nullsv /* XXX */"); |
399 | } |
932e9ff9 |
400 | $svsect->add(sprintf("0, %u, 0x%x", $sv->REFCNT , $sv->FLAGS)); |
a798dbf2 |
401 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); |
402 | } |
403 | |
404 | sub B::IV::save { |
405 | my ($sv) = @_; |
406 | my $sym = objsym($sv); |
407 | return $sym if defined $sym; |
408 | $xpvivsect->add(sprintf("0, 0, 0, %d", $sv->IVX)); |
409 | $svsect->add(sprintf("&xpviv_list[%d], %lu, 0x%x", |
932e9ff9 |
410 | $xpvivsect->index, $sv->REFCNT , $sv->FLAGS)); |
a798dbf2 |
411 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); |
412 | } |
413 | |
414 | sub B::NV::save { |
415 | my ($sv) = @_; |
416 | my $sym = objsym($sv); |
417 | return $sym if defined $sym; |
56eca212 |
418 | my $val= $sv->NVX; |
419 | $val .= '.00' if $val =~ /^-?\d+$/; |
420 | $xpvnvsect->add(sprintf("0, 0, 0, %d, %s", $sv->IVX, $val)); |
a798dbf2 |
421 | $svsect->add(sprintf("&xpvnv_list[%d], %lu, 0x%x", |
932e9ff9 |
422 | $xpvnvsect->index, $sv->REFCNT , $sv->FLAGS)); |
a798dbf2 |
423 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); |
424 | } |
425 | |
dc333d64 |
426 | sub savepvn { |
427 | my ($dest,$pv) = @_; |
428 | my @res; |
429 | if (defined $max_string_len && length($pv) > $max_string_len) { |
430 | push @res, sprintf("New(0,%s,%u,char);", $dest, length($pv)+1); |
431 | my $offset = 0; |
432 | while (length $pv) { |
433 | my $str = substr $pv, 0, $max_string_len, ''; |
434 | push @res, sprintf("Copy(%s,$dest+$offset,%u,char);", |
435 | cstring($str), length($str)); |
436 | $offset += length $str; |
437 | } |
438 | push @res, sprintf("%s[%u] = '\\0';", $dest, $offset); |
439 | } |
440 | else { |
441 | push @res, sprintf("%s = savepvn(%s, %u);", $dest, |
442 | cstring($pv), length($pv)); |
443 | } |
444 | return @res; |
445 | } |
446 | |
a798dbf2 |
447 | sub B::PVLV::save { |
448 | my ($sv) = @_; |
449 | my $sym = objsym($sv); |
450 | return $sym if defined $sym; |
451 | my $pv = $sv->PV; |
452 | my $len = length($pv); |
453 | my ($pvsym, $pvmax) = savepv($pv); |
454 | my ($lvtarg, $lvtarg_sym); |
455 | $xpvlvsect->add(sprintf("%s, %u, %u, %d, %g, 0, 0, %u, %u, 0, %s", |
456 | $pvsym, $len, $pvmax, $sv->IVX, $sv->NVX, |
457 | $sv->TARGOFF, $sv->TARGLEN, cchar($sv->TYPE))); |
458 | $svsect->add(sprintf("&xpvlv_list[%d], %lu, 0x%x", |
932e9ff9 |
459 | $xpvlvsect->index, $sv->REFCNT , $sv->FLAGS)); |
a798dbf2 |
460 | if (!$pv_copy_on_grow) { |
dc333d64 |
461 | $init->add(savepvn(sprintf("xpvlv_list[%d].xpv_pv", |
462 | $xpvlvsect->index), $pv)); |
a798dbf2 |
463 | } |
464 | $sv->save_magic; |
465 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); |
466 | } |
467 | |
468 | sub B::PVIV::save { |
469 | my ($sv) = @_; |
470 | my $sym = objsym($sv); |
471 | return $sym if defined $sym; |
472 | my $pv = $sv->PV; |
473 | my $len = length($pv); |
474 | my ($pvsym, $pvmax) = savepv($pv); |
475 | $xpvivsect->add(sprintf("%s, %u, %u, %d", $pvsym, $len, $pvmax, $sv->IVX)); |
476 | $svsect->add(sprintf("&xpviv_list[%d], %u, 0x%x", |
932e9ff9 |
477 | $xpvivsect->index, $sv->REFCNT , $sv->FLAGS)); |
a798dbf2 |
478 | if (!$pv_copy_on_grow) { |
dc333d64 |
479 | $init->add(savepvn(sprintf("xpviv_list[%d].xpv_pv", |
480 | $xpvivsect->index), $pv)); |
a798dbf2 |
481 | } |
482 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); |
483 | } |
484 | |
485 | sub B::PVNV::save { |
486 | my ($sv) = @_; |
487 | my $sym = objsym($sv); |
488 | return $sym if defined $sym; |
66a2622e |
489 | my $pv = $sv->PV; |
490 | $pv = '' unless defined $pv; |
a798dbf2 |
491 | my $len = length($pv); |
492 | my ($pvsym, $pvmax) = savepv($pv); |
56eca212 |
493 | my $val= $sv->NVX; |
494 | $val .= '.00' if $val =~ /^-?\d+$/; |
a798dbf2 |
495 | $xpvnvsect->add(sprintf("%s, %u, %u, %d, %s", |
56eca212 |
496 | $pvsym, $len, $pvmax, $sv->IVX, $val)); |
a798dbf2 |
497 | $svsect->add(sprintf("&xpvnv_list[%d], %lu, 0x%x", |
932e9ff9 |
498 | $xpvnvsect->index, $sv->REFCNT , $sv->FLAGS)); |
a798dbf2 |
499 | if (!$pv_copy_on_grow) { |
dc333d64 |
500 | $init->add(savepvn(sprintf("xpvnv_list[%d].xpv_pv", |
501 | $xpvnvsect->index), $pv)); |
a798dbf2 |
502 | } |
503 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); |
504 | } |
505 | |
506 | sub B::BM::save { |
507 | my ($sv) = @_; |
508 | my $sym = objsym($sv); |
509 | return $sym if defined $sym; |
510 | my $pv = $sv->PV . "\0" . $sv->TABLE; |
511 | my $len = length($pv); |
512 | $xpvbmsect->add(sprintf("0, %u, %u, %d, %s, 0, 0, %d, %u, 0x%x", |
513 | $len, $len + 258, $sv->IVX, $sv->NVX, |
514 | $sv->USEFUL, $sv->PREVIOUS, $sv->RARE)); |
515 | $svsect->add(sprintf("&xpvbm_list[%d], %lu, 0x%x", |
932e9ff9 |
516 | $xpvbmsect->index, $sv->REFCNT , $sv->FLAGS)); |
a798dbf2 |
517 | $sv->save_magic; |
dc333d64 |
518 | $init->add(savepvn(sprintf("xpvbm_list[%d].xpv_pv", |
519 | $xpvbmsect->index), $pv), |
a798dbf2 |
520 | sprintf("xpvbm_list[%d].xpv_cur = %u;", |
521 | $xpvbmsect->index, $len - 257)); |
522 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); |
523 | } |
524 | |
525 | sub B::PV::save { |
526 | my ($sv) = @_; |
527 | my $sym = objsym($sv); |
528 | return $sym if defined $sym; |
529 | my $pv = $sv->PV; |
530 | my $len = length($pv); |
531 | my ($pvsym, $pvmax) = savepv($pv); |
532 | $xpvsect->add(sprintf("%s, %u, %u", $pvsym, $len, $pvmax)); |
533 | $svsect->add(sprintf("&xpv_list[%d], %lu, 0x%x", |
932e9ff9 |
534 | $xpvsect->index, $sv->REFCNT , $sv->FLAGS)); |
a798dbf2 |
535 | if (!$pv_copy_on_grow) { |
dc333d64 |
536 | $init->add(savepvn(sprintf("xpv_list[%d].xpv_pv", |
537 | $xpvsect->index), $pv)); |
a798dbf2 |
538 | } |
539 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); |
540 | } |
541 | |
542 | sub B::PVMG::save { |
543 | my ($sv) = @_; |
544 | my $sym = objsym($sv); |
545 | return $sym if defined $sym; |
546 | my $pv = $sv->PV; |
547 | my $len = length($pv); |
548 | my ($pvsym, $pvmax) = savepv($pv); |
549 | $xpvmgsect->add(sprintf("%s, %u, %u, %d, %s, 0, 0", |
550 | $pvsym, $len, $pvmax, $sv->IVX, $sv->NVX)); |
551 | $svsect->add(sprintf("&xpvmg_list[%d], %lu, 0x%x", |
932e9ff9 |
552 | $xpvmgsect->index, $sv->REFCNT , $sv->FLAGS)); |
a798dbf2 |
553 | if (!$pv_copy_on_grow) { |
dc333d64 |
554 | $init->add(savepvn(sprintf("xpvmg_list[%d].xpv_pv", |
555 | $xpvmgsect->index), $pv)); |
a798dbf2 |
556 | } |
557 | $sym = savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); |
558 | $sv->save_magic; |
559 | return $sym; |
560 | } |
561 | |
562 | sub B::PVMG::save_magic { |
563 | my ($sv) = @_; |
564 | #warn sprintf("saving magic for %s (0x%x)\n", class($sv), $$sv); # debug |
565 | my $stash = $sv->SvSTASH; |
56eca212 |
566 | $stash->save; |
a798dbf2 |
567 | if ($$stash) { |
568 | warn sprintf("xmg_stash = %s (0x%x)\n", $stash->NAME, $$stash) |
569 | if $debug_mg; |
570 | # XXX Hope stash is already going to be saved. |
571 | $init->add(sprintf("SvSTASH(s\\_%x) = s\\_%x;", $$sv, $$stash)); |
572 | } |
573 | my @mgchain = $sv->MAGIC; |
88b39979 |
574 | my ($mg, $type, $obj, $ptr,$len,$ptrsv); |
a798dbf2 |
575 | foreach $mg (@mgchain) { |
576 | $type = $mg->TYPE; |
577 | $obj = $mg->OBJ; |
578 | $ptr = $mg->PTR; |
88b39979 |
579 | $len=$mg->LENGTH; |
a798dbf2 |
580 | if ($debug_mg) { |
581 | warn sprintf("magic %s (0x%x), obj %s (0x%x), type %s, ptr %s\n", |
582 | class($sv), $$sv, class($obj), $$obj, |
583 | cchar($type), cstring($ptr)); |
584 | } |
56eca212 |
585 | $obj->save; |
88b39979 |
586 | if ($len == HEf_SVKEY){ |
587 | #The pointer is an SV* |
588 | $ptrsv=svref_2object($ptr)->save; |
5ab5c7a4 |
589 | $init->add(sprintf("sv_magic((SV*)s\\_%x, (SV*)s\\_%x, %s,(char *) %s, %d);", |
88b39979 |
590 | $$sv, $$obj, cchar($type),$ptrsv,$len)); |
591 | }else{ |
592 | $init->add(sprintf("sv_magic((SV*)s\\_%x, (SV*)s\\_%x, %s, %s, %d);", |
a798dbf2 |
593 | $$sv, $$obj, cchar($type),cstring($ptr),$len)); |
88b39979 |
594 | } |
a798dbf2 |
595 | } |
596 | } |
597 | |
598 | sub B::RV::save { |
599 | my ($sv) = @_; |
600 | my $sym = objsym($sv); |
601 | return $sym if defined $sym; |
66a2622e |
602 | my $rv = $sv->RV->save; |
603 | $rv =~ s/^\([AGHS]V\s*\*\)\s*(\&sv_list.*)$/$1/; |
604 | $xrvsect->add($rv); |
a798dbf2 |
605 | $svsect->add(sprintf("&xrv_list[%d], %lu, 0x%x", |
932e9ff9 |
606 | $xrvsect->index, $sv->REFCNT , $sv->FLAGS)); |
a798dbf2 |
607 | return savesym($sv, sprintf("&sv_list[%d]", $svsect->index)); |
608 | } |
609 | |
610 | sub try_autoload { |
611 | my ($cvstashname, $cvname) = @_; |
612 | warn sprintf("No definition for sub %s::%s\n", $cvstashname, $cvname); |
613 | # Handle AutoLoader classes explicitly. Any more general AUTOLOAD |
614 | # use should be handled by the class itself. |
615 | no strict 'refs'; |
616 | my $isa = \@{"$cvstashname\::ISA"}; |
617 | if (grep($_ eq "AutoLoader", @$isa)) { |
618 | warn "Forcing immediate load of sub derived from AutoLoader\n"; |
619 | # Tweaked version of AutoLoader::AUTOLOAD |
620 | my $dir = $cvstashname; |
621 | $dir =~ s(::)(/)g; |
622 | eval { require "auto/$dir/$cvname.al" }; |
623 | if ($@) { |
624 | warn qq(failed require "auto/$dir/$cvname.al": $@\n); |
625 | return 0; |
626 | } else { |
627 | return 1; |
628 | } |
629 | } |
630 | } |
e9a14d94 |
631 | sub Dummy_initxs{}; |
a798dbf2 |
632 | sub B::CV::save { |
633 | my ($cv) = @_; |
634 | my $sym = objsym($cv); |
635 | if (defined($sym)) { |
636 | # warn sprintf("CV 0x%x already saved as $sym\n", $$cv); # debug |
637 | return $sym; |
638 | } |
639 | # Reserve a place in svsect and xpvcvsect and record indices |
af765ed9 |
640 | my $gv = $cv->GV; |
6771324e |
641 | my ($cvname, $cvstashname); |
642 | if ($$gv){ |
643 | $cvname = $gv->NAME; |
644 | $cvstashname = $gv->STASH->NAME; |
645 | } |
af765ed9 |
646 | my $root = $cv->ROOT; |
647 | my $cvxsub = $cv->XSUB; |
e9a14d94 |
648 | #INIT is removed from the symbol table, so this call must come |
649 | # from PL_initav->save. Re-bootstrapping will push INIT back in |
650 | # so nullop should be sent. |
651 | if ($cvxsub && ($cvname ne "INIT")) { |
af765ed9 |
652 | my $egv = $gv->EGV; |
653 | my $stashname = $egv->STASH->NAME; |
be6f3502 |
654 | if ($cvname eq "bootstrap") |
655 | { |
b195d487 |
656 | my $file = $gv->FILE; |
be6f3502 |
657 | $decl->add("/* bootstrap $file */"); |
658 | warn "Bootstrap $stashname $file\n"; |
659 | $xsub{$stashname}='Dynamic'; |
660 | # $xsub{$stashname}='Static' unless $xsub{$stashname}; |
a0e9c8c7 |
661 | return qq/NULL/; |
be6f3502 |
662 | } |
a0e9c8c7 |
663 | warn sprintf("stub for XSUB $cvstashname\:\:$cvname CV 0x%x\n", $$cv) if $debug_cv; |
be6f3502 |
664 | return qq/(perl_get_cv("$stashname\:\:$cvname",TRUE))/; |
e9a14d94 |
665 | } |
666 | if ($cvxsub && $cvname eq "INIT") { |
667 | no strict 'refs'; |
668 | return svref_2object(\&Dummy_initxs)->save; |
af765ed9 |
669 | } |
a798dbf2 |
670 | my $sv_ix = $svsect->index + 1; |
671 | $svsect->add("svix$sv_ix"); |
672 | my $xpvcv_ix = $xpvcvsect->index + 1; |
673 | $xpvcvsect->add("xpvcvix$xpvcv_ix"); |
674 | # Save symbol now so that GvCV() doesn't recurse back to us via CvGV() |
675 | $sym = savesym($cv, "&sv_list[$sv_ix]"); |
a0e9c8c7 |
676 | warn sprintf("saving $cvstashname\:\:$cvname CV 0x%x as $sym\n", $$cv) if $debug_cv; |
a798dbf2 |
677 | if (!$$root && !$cvxsub) { |
678 | if (try_autoload($cvstashname, $cvname)) { |
679 | # Recalculate root and xsub |
680 | $root = $cv->ROOT; |
681 | $cvxsub = $cv->XSUB; |
682 | if ($$root || $cvxsub) { |
683 | warn "Successful forced autoload\n"; |
684 | } |
685 | } |
686 | } |
687 | my $startfield = 0; |
688 | my $padlist = $cv->PADLIST; |
689 | my $pv = $cv->PV; |
690 | my $xsub = 0; |
691 | my $xsubany = "Nullany"; |
692 | if ($$root) { |
693 | warn sprintf("saving op tree for CV 0x%x, root = 0x%x\n", |
694 | $$cv, $$root) if $debug_cv; |
695 | my $ppname = ""; |
696 | if ($$gv) { |
697 | my $stashname = $gv->STASH->NAME; |
698 | my $gvname = $gv->NAME; |
699 | if ($gvname ne "__ANON__") { |
700 | $ppname = (${$gv->FORM} == $$cv) ? "pp_form_" : "pp_sub_"; |
701 | $ppname .= ($stashname eq "main") ? |
702 | $gvname : "$stashname\::$gvname"; |
703 | $ppname =~ s/::/__/g; |
44887cfa |
704 | if ($gvname eq "INIT"){ |
705 | $ppname .= "_$initsub_index"; |
706 | $initsub_index++; |
707 | } |
a798dbf2 |
708 | } |
709 | } |
710 | if (!$ppname) { |
711 | $ppname = "pp_anonsub_$anonsub_index"; |
712 | $anonsub_index++; |
713 | } |
714 | $startfield = saveoptree($ppname, $root, $cv->START, $padlist->ARRAY); |
715 | warn sprintf("done saving op tree for CV 0x%x, name %s, root 0x%x\n", |
716 | $$cv, $ppname, $$root) if $debug_cv; |
717 | if ($$padlist) { |
718 | warn sprintf("saving PADLIST 0x%x for CV 0x%x\n", |
719 | $$padlist, $$cv) if $debug_cv; |
720 | $padlist->save; |
721 | warn sprintf("done saving PADLIST 0x%x for CV 0x%x\n", |
722 | $$padlist, $$cv) if $debug_cv; |
723 | } |
724 | } |
a798dbf2 |
725 | else { |
726 | warn sprintf("No definition for sub %s::%s (unable to autoload)\n", |
727 | $cvstashname, $cvname); # debug |
66a2622e |
728 | } |
729 | $pv = '' unless defined $pv; # Avoid use of undef warnings |
5712119f |
730 | $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", |
a798dbf2 |
731 | $xpvcv_ix, cstring($pv), length($pv), $cv->IVX, |
732 | $cv->NVX, $startfield, ${$cv->ROOT}, $cv->DEPTH, |
5cfd8ad4 |
733 | $$padlist, ${$cv->OUTSIDE}, $cv->CvFLAGS)); |
734 | |
735 | if (${$cv->OUTSIDE} == ${main_cv()}){ |
736 | $init->add(sprintf("CvOUTSIDE(s\\_%x)=PL_main_cv;",$$cv)); |
358b5eb8 |
737 | $init->add(sprintf("SvREFCNT_inc(PL_main_cv);")); |
5cfd8ad4 |
738 | } |
739 | |
a798dbf2 |
740 | if ($$gv) { |
741 | $gv->save; |
742 | $init->add(sprintf("CvGV(s\\_%x) = s\\_%x;",$$cv,$$gv)); |
743 | warn sprintf("done saving GV 0x%x for CV 0x%x\n", |
744 | $$gv, $$cv) if $debug_cv; |
745 | } |
57843af0 |
746 | $init->add(sprintf("CvFILE($sym) = %s;", cstring($cv->FILE))); |
a798dbf2 |
747 | my $stash = $cv->STASH; |
748 | if ($$stash) { |
749 | $stash->save; |
750 | $init->add(sprintf("CvSTASH(s\\_%x) = s\\_%x;", $$cv, $$stash)); |
751 | warn sprintf("done saving STASH 0x%x for CV 0x%x\n", |
752 | $$stash, $$cv) if $debug_cv; |
753 | } |
754 | $symsect->add(sprintf("svix%d\t(XPVCV*)&xpvcv_list[%u], %lu, 0x%x", |
932e9ff9 |
755 | $sv_ix, $xpvcv_ix, $cv->REFCNT +1 , $cv->FLAGS)); |
a798dbf2 |
756 | return $sym; |
757 | } |
758 | |
759 | sub B::GV::save { |
be6f3502 |
760 | my ($gv) = @_; |
a798dbf2 |
761 | my $sym = objsym($gv); |
762 | if (defined($sym)) { |
763 | #warn sprintf("GV 0x%x already saved as $sym\n", $$gv); # debug |
764 | return $sym; |
765 | } else { |
766 | my $ix = $gv_index++; |
767 | $sym = savesym($gv, "gv_list[$ix]"); |
768 | #warn sprintf("Saving GV 0x%x as $sym\n", $$gv); # debug |
769 | } |
87d7fd28 |
770 | my $is_empty = $gv->is_empty; |
a798dbf2 |
771 | my $gvname = $gv->NAME; |
772 | my $name = cstring($gv->STASH->NAME . "::" . $gvname); |
773 | #warn "GV name is $name\n"; # debug |
a798dbf2 |
774 | my $egvsym; |
87d7fd28 |
775 | unless ($is_empty) { |
776 | my $egv = $gv->EGV; |
777 | if ($$gv != $$egv) { |
778 | #warn(sprintf("EGV name is %s, saving it now\n", |
779 | # $egv->STASH->NAME . "::" . $egv->NAME)); # debug |
780 | $egvsym = $egv->save; |
781 | } |
a798dbf2 |
782 | } |
783 | $init->add(qq[$sym = gv_fetchpv($name, TRUE, SVt_PV);], |
784 | sprintf("SvFLAGS($sym) = 0x%x;", $gv->FLAGS), |
87d7fd28 |
785 | sprintf("GvFLAGS($sym) = 0x%x;", $gv->GvFLAGS)); |
786 | $init->add(sprintf("GvLINE($sym) = %u;", $gv->LINE)) unless $is_empty; |
787 | |
a798dbf2 |
788 | # Shouldn't need to do save_magic since gv_fetchpv handles that |
789 | #$gv->save_magic; |
790 | my $refcnt = $gv->REFCNT + 1; |
791 | $init->add(sprintf("SvREFCNT($sym) += %u;", $refcnt - 1)) if $refcnt > 1; |
87d7fd28 |
792 | |
793 | return $sym if $is_empty; |
794 | |
a798dbf2 |
795 | my $gvrefcnt = $gv->GvREFCNT; |
796 | if ($gvrefcnt > 1) { |
797 | $init->add(sprintf("GvREFCNT($sym) += %u;", $gvrefcnt - 1)); |
798 | } |
799 | if (defined($egvsym)) { |
800 | # Shared glob *foo = *bar |
801 | $init->add("gp_free($sym);", |
802 | "GvGP($sym) = GvGP($egvsym);"); |
803 | } elsif ($gvname !~ /^([^A-Za-z]|STDIN|STDOUT|STDERR|ARGV|SIG|ENV)$/) { |
804 | # Don't save subfields of special GVs (*_, *1, *# and so on) |
805 | # warn "GV::save saving subfields\n"; # debug |
806 | my $gvsv = $gv->SV; |
807 | if ($$gvsv) { |
cfa4c8ee |
808 | $gvsv->save; |
a798dbf2 |
809 | $init->add(sprintf("GvSV($sym) = s\\_%x;", $$gvsv)); |
810 | # warn "GV::save \$$name\n"; # debug |
a798dbf2 |
811 | } |
812 | my $gvav = $gv->AV; |
813 | if ($$gvav) { |
cfa4c8ee |
814 | $gvav->save; |
a798dbf2 |
815 | $init->add(sprintf("GvAV($sym) = s\\_%x;", $$gvav)); |
816 | # warn "GV::save \@$name\n"; # debug |
a798dbf2 |
817 | } |
818 | my $gvhv = $gv->HV; |
819 | if ($$gvhv) { |
cfa4c8ee |
820 | $gvhv->save; |
a798dbf2 |
821 | $init->add(sprintf("GvHV($sym) = s\\_%x;", $$gvhv)); |
822 | # warn "GV::save \%$name\n"; # debug |
a798dbf2 |
823 | } |
824 | my $gvcv = $gv->CV; |
be6f3502 |
825 | if ($$gvcv) { |
826 | my $origname=cstring($gvcv->GV->EGV->STASH->NAME . |
827 | "::" . $gvcv->GV->EGV->NAME); |
828 | if (0 && $gvcv->XSUB && $name ne $origname) { #XSUB alias |
829 | # must save as a 'stub' so newXS() has a CV to populate |
af765ed9 |
830 | $init->add("{ CV *cv;"); |
be6f3502 |
831 | $init->add("\tcv=perl_get_cv($origname,TRUE);"); |
af765ed9 |
832 | $init->add("\tGvCV($sym)=cv;"); |
833 | $init->add("\tSvREFCNT_inc((SV *)cv);"); |
be6f3502 |
834 | $init->add("}"); |
835 | } else { |
836 | $init->add(sprintf("GvCV($sym) = (CV*)(%s);", $gvcv->save)); |
837 | # warn "GV::save &$name\n"; # debug |
838 | } |
af765ed9 |
839 | } |
b195d487 |
840 | $init->add(sprintf("GvFILE($sym) = %s;", cstring($gv->FILE))); |
841 | # warn "GV::save GvFILE(*$name)\n"; # debug |
a798dbf2 |
842 | my $gvform = $gv->FORM; |
843 | if ($$gvform) { |
cfa4c8ee |
844 | $gvform->save; |
a798dbf2 |
845 | $init->add(sprintf("GvFORM($sym) = (CV*)s\\_%x;", $$gvform)); |
846 | # warn "GV::save GvFORM(*$name)\n"; # debug |
a798dbf2 |
847 | } |
848 | my $gvio = $gv->IO; |
849 | if ($$gvio) { |
cfa4c8ee |
850 | $gvio->save; |
a798dbf2 |
851 | $init->add(sprintf("GvIOp($sym) = s\\_%x;", $$gvio)); |
852 | # warn "GV::save GvIO(*$name)\n"; # debug |
a798dbf2 |
853 | } |
854 | } |
855 | return $sym; |
856 | } |
857 | sub B::AV::save { |
858 | my ($av) = @_; |
859 | my $sym = objsym($av); |
860 | return $sym if defined $sym; |
861 | my $avflags = $av->AvFLAGS; |
862 | $xpvavsect->add(sprintf("0, -1, -1, 0, 0.0, 0, Nullhv, 0, 0, 0x%x", |
863 | $avflags)); |
864 | $svsect->add(sprintf("&xpvav_list[%d], %lu, 0x%x", |
932e9ff9 |
865 | $xpvavsect->index, $av->REFCNT , $av->FLAGS)); |
a798dbf2 |
866 | my $sv_list_index = $svsect->index; |
867 | my $fill = $av->FILL; |
868 | $av->save_magic; |
869 | warn sprintf("saving AV 0x%x FILL=$fill AvFLAGS=0x%x", $$av, $avflags) |
870 | if $debug_av; |
871 | # XXX AVf_REAL is wrong test: need to save comppadlist but not stack |
872 | #if ($fill > -1 && ($avflags & AVf_REAL)) { |
873 | if ($fill > -1) { |
874 | my @array = $av->ARRAY; |
875 | if ($debug_av) { |
876 | my $el; |
877 | my $i = 0; |
878 | foreach $el (@array) { |
879 | warn sprintf("AV 0x%x[%d] = %s 0x%x\n", |
880 | $$av, $i++, class($el), $$el); |
881 | } |
882 | } |
883 | my @names = map($_->save, @array); |
884 | # XXX Better ways to write loop? |
885 | # Perhaps svp[0] = ...; svp[1] = ...; svp[2] = ...; |
886 | # Perhaps I32 i = 0; svp[i++] = ...; svp[i++] = ...; svp[i++] = ...; |
887 | $init->add("{", |
888 | "\tSV **svp;", |
889 | "\tAV *av = (AV*)&sv_list[$sv_list_index];", |
890 | "\tav_extend(av, $fill);", |
891 | "\tsvp = AvARRAY(av);", |
892 | map("\t*svp++ = (SV*)$_;", @names), |
893 | "\tAvFILLp(av) = $fill;", |
894 | "}"); |
895 | } else { |
896 | my $max = $av->MAX; |
897 | $init->add("av_extend((AV*)&sv_list[$sv_list_index], $max);") |
898 | if $max > -1; |
899 | } |
900 | return savesym($av, "(AV*)&sv_list[$sv_list_index]"); |
901 | } |
902 | |
903 | sub B::HV::save { |
904 | my ($hv) = @_; |
905 | my $sym = objsym($hv); |
906 | return $sym if defined $sym; |
907 | my $name = $hv->NAME; |
908 | if ($name) { |
909 | # It's a stash |
910 | |
911 | # A perl bug means HvPMROOT isn't altered when a PMOP is freed. Usually |
912 | # the only symptom is that sv_reset tries to reset the PMf_USED flag of |
913 | # a trashed op but we look at the trashed op_type and segfault. |
914 | #my $adpmroot = ${$hv->PMROOT}; |
915 | my $adpmroot = 0; |
916 | $decl->add("static HV *hv$hv_index;"); |
917 | # XXX Beware of weird package names containing double-quotes, \n, ...? |
918 | $init->add(qq[hv$hv_index = gv_stashpv("$name", TRUE);]); |
919 | if ($adpmroot) { |
920 | $init->add(sprintf("HvPMROOT(hv$hv_index) = (PMOP*)s\\_%x;", |
921 | $adpmroot)); |
922 | } |
923 | $sym = savesym($hv, "hv$hv_index"); |
924 | $hv_index++; |
925 | return $sym; |
926 | } |
927 | # It's just an ordinary HV |
928 | $xpvhvsect->add(sprintf("0, 0, %d, 0, 0.0, 0, Nullhv, %d, 0, 0, 0", |
929 | $hv->MAX, $hv->RITER)); |
930 | $svsect->add(sprintf("&xpvhv_list[%d], %lu, 0x%x", |
932e9ff9 |
931 | $xpvhvsect->index, $hv->REFCNT , $hv->FLAGS)); |
a798dbf2 |
932 | my $sv_list_index = $svsect->index; |
933 | my @contents = $hv->ARRAY; |
934 | if (@contents) { |
935 | my $i; |
936 | for ($i = 1; $i < @contents; $i += 2) { |
937 | $contents[$i] = $contents[$i]->save; |
938 | } |
939 | $init->add("{", "\tHV *hv = (HV*)&sv_list[$sv_list_index];"); |
940 | while (@contents) { |
941 | my ($key, $value) = splice(@contents, 0, 2); |
942 | $init->add(sprintf("\thv_store(hv, %s, %u, %s, %s);", |
943 | cstring($key),length($key),$value, hash($key))); |
cf86991c |
944 | # $init->add(sprintf("\thv_store(hv, %s, %u, %s, %s);", |
945 | # cstring($key),length($key),$value, 0)); |
a798dbf2 |
946 | } |
947 | $init->add("}"); |
948 | } |
56eca212 |
949 | $hv->save_magic(); |
a798dbf2 |
950 | return savesym($hv, "(HV*)&sv_list[$sv_list_index]"); |
951 | } |
952 | |
953 | sub B::IO::save { |
954 | my ($io) = @_; |
955 | my $sym = objsym($io); |
956 | return $sym if defined $sym; |
957 | my $pv = $io->PV; |
66a2622e |
958 | $pv = '' unless defined $pv; |
a798dbf2 |
959 | my $len = length($pv); |
960 | $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", |
961 | $len, $len+1, $io->IVX, $io->NVX, $io->LINES, |
962 | $io->PAGE, $io->PAGE_LEN, $io->LINES_LEFT, |
963 | cstring($io->TOP_NAME), cstring($io->FMT_NAME), |
964 | cstring($io->BOTTOM_NAME), $io->SUBPROCESS, |
965 | cchar($io->IoTYPE), $io->IoFLAGS)); |
966 | $svsect->add(sprintf("&xpvio_list[%d], %lu, 0x%x", |
932e9ff9 |
967 | $xpviosect->index, $io->REFCNT , $io->FLAGS)); |
a798dbf2 |
968 | $sym = savesym($io, sprintf("(IO*)&sv_list[%d]", $svsect->index)); |
969 | my ($field, $fsym); |
970 | foreach $field (qw(TOP_GV FMT_GV BOTTOM_GV)) { |
971 | $fsym = $io->$field(); |
972 | if ($$fsym) { |
973 | $init->add(sprintf("Io$field($sym) = (GV*)s\\_%x;", $$fsym)); |
974 | $fsym->save; |
975 | } |
976 | } |
977 | $io->save_magic; |
978 | return $sym; |
979 | } |
980 | |
981 | sub B::SV::save { |
982 | my $sv = shift; |
983 | # This is where we catch an honest-to-goodness Nullsv (which gets |
984 | # blessed into B::SV explicitly) and any stray erroneous SVs. |
985 | return 0 unless $$sv; |
986 | confess sprintf("cannot save that type of SV: %s (0x%x)\n", |
987 | class($sv), $$sv); |
988 | } |
989 | |
990 | sub output_all { |
991 | my $init_name = shift; |
992 | my $section; |
993 | my @sections = ($opsect, $unopsect, $binopsect, $logopsect, $condopsect, |
7934575e |
994 | $listopsect, $pmopsect, $svopsect, $padopsect, $pvopsect, |
66a2622e |
995 | $loopsect, $copsect, $svsect, $xpvsect, |
a798dbf2 |
996 | $xpvavsect, $xpvhvsect, $xpvcvsect, $xpvivsect, $xpvnvsect, |
997 | $xpvmgsect, $xpvlvsect, $xrvsect, $xpvbmsect, $xpviosect); |
998 | $symsect->output(\*STDOUT, "#define %s\n"); |
999 | print "\n"; |
1000 | output_declarations(); |
1001 | foreach $section (@sections) { |
1002 | my $lines = $section->index + 1; |
1003 | if ($lines) { |
1004 | my $name = $section->name; |
1005 | my $typename = ($name eq "xpvcv") ? "XPVCV_or_similar" : uc($name); |
1006 | print "Static $typename ${name}_list[$lines];\n"; |
1007 | } |
1008 | } |
1009 | $decl->output(\*STDOUT, "%s\n"); |
1010 | print "\n"; |
1011 | foreach $section (@sections) { |
1012 | my $lines = $section->index + 1; |
1013 | if ($lines) { |
1014 | my $name = $section->name; |
1015 | my $typename = ($name eq "xpvcv") ? "XPVCV_or_similar" : uc($name); |
1016 | printf "static %s %s_list[%u] = {\n", $typename, $name, $lines; |
1017 | $section->output(\*STDOUT, "\t{ %s },\n"); |
1018 | print "};\n\n"; |
1019 | } |
1020 | } |
1021 | |
1022 | print <<"EOT"; |
1023 | static int $init_name() |
1024 | { |
af765ed9 |
1025 | dTARG; |
39644a26 |
1026 | dSP; |
a798dbf2 |
1027 | EOT |
1028 | $init->output(\*STDOUT, "\t%s\n"); |
1029 | print "\treturn 0;\n}\n"; |
1030 | if ($verbose) { |
1031 | warn compile_stats(); |
1032 | warn "NULLOP count: $nullop_count\n"; |
1033 | } |
1034 | } |
1035 | |
1036 | sub output_declarations { |
1037 | print <<'EOT'; |
1038 | #ifdef BROKEN_STATIC_REDECL |
1039 | #define Static extern |
1040 | #else |
1041 | #define Static static |
1042 | #endif /* BROKEN_STATIC_REDECL */ |
1043 | |
1044 | #ifdef BROKEN_UNION_INIT |
1045 | /* |
1046 | * Cribbed from cv.h with ANY (a union) replaced by void*. |
1047 | * Some pre-Standard compilers can't cope with initialising unions. Ho hum. |
1048 | */ |
1049 | typedef struct { |
1050 | char * xpv_pv; /* pointer to malloced string */ |
1051 | STRLEN xpv_cur; /* length of xp_pv as a C string */ |
1052 | STRLEN xpv_len; /* allocated size */ |
1053 | IV xof_off; /* integer value */ |
76ef7183 |
1054 | NV xnv_nv; /* numeric value, if any */ |
a798dbf2 |
1055 | MAGIC* xmg_magic; /* magic for scalar array */ |
1056 | HV* xmg_stash; /* class package */ |
1057 | |
1058 | HV * xcv_stash; |
1059 | OP * xcv_start; |
1060 | OP * xcv_root; |
acfe0abc |
1061 | void (*xcv_xsub) (pTHX_ CV*); |
76ef7183 |
1062 | ANY xcv_xsubany; |
a798dbf2 |
1063 | GV * xcv_gv; |
57843af0 |
1064 | char * xcv_file; |
b195d487 |
1065 | long xcv_depth; /* >= 2 indicates recursive call */ |
a798dbf2 |
1066 | AV * xcv_padlist; |
1067 | CV * xcv_outside; |
4d1ff10f |
1068 | #ifdef USE_5005THREADS |
a798dbf2 |
1069 | perl_mutex *xcv_mutexp; |
1070 | struct perl_thread *xcv_owner; /* current owner thread */ |
4d1ff10f |
1071 | #endif /* USE_5005THREADS */ |
fc290457 |
1072 | cv_flags_t xcv_flags; |
a798dbf2 |
1073 | } XPVCV_or_similar; |
1074 | #define ANYINIT(i) i |
1075 | #else |
1076 | #define XPVCV_or_similar XPVCV |
1077 | #define ANYINIT(i) {i} |
1078 | #endif /* BROKEN_UNION_INIT */ |
1079 | #define Nullany ANYINIT(0) |
1080 | |
1081 | #define UNUSED 0 |
1082 | #define sym_0 0 |
1083 | |
1084 | EOT |
1085 | print "static GV *gv_list[$gv_index];\n" if $gv_index; |
1086 | print "\n"; |
1087 | } |
1088 | |
1089 | |
1090 | sub output_boilerplate { |
1091 | print <<'EOT'; |
1092 | #include "EXTERN.h" |
1093 | #include "perl.h" |
93865851 |
1094 | #include "XSUB.h" |
a798dbf2 |
1095 | |
1096 | /* Workaround for mapstart: the only op which needs a different ppaddr */ |
3f872cb9 |
1097 | #undef Perl_pp_mapstart |
1098 | #define Perl_pp_mapstart Perl_pp_grepstart |
511dd457 |
1099 | #define XS_DynaLoader_boot_DynaLoader boot_DynaLoader |
5712119f |
1100 | EXTERN_C void boot_DynaLoader (pTHX_ CV* cv); |
a798dbf2 |
1101 | |
5712119f |
1102 | static void xs_init (pTHX); |
1103 | static void dl_init (pTHX); |
a798dbf2 |
1104 | static PerlInterpreter *my_perl; |
1105 | EOT |
1106 | } |
1107 | |
1108 | sub output_main { |
1109 | print <<'EOT'; |
1110 | int |
a798dbf2 |
1111 | main(int argc, char **argv, char **env) |
a798dbf2 |
1112 | { |
1113 | int exitstatus; |
1114 | int i; |
1115 | char **fakeargv; |
1116 | |
5712119f |
1117 | PERL_SYS_INIT3(&argc,&argv,&env); |
a798dbf2 |
1118 | |
81009501 |
1119 | if (!PL_do_undump) { |
a798dbf2 |
1120 | my_perl = perl_alloc(); |
1121 | if (!my_perl) |
1122 | exit(1); |
1123 | perl_construct( my_perl ); |
5712119f |
1124 | PL_perl_destruct_level = 0; |
a798dbf2 |
1125 | } |
1126 | |
1127 | #ifdef CSH |
81009501 |
1128 | if (!PL_cshlen) |
1129 | PL_cshlen = strlen(PL_cshname); |
a798dbf2 |
1130 | #endif |
1131 | |
1132 | #ifdef ALLOW_PERL_OPTIONS |
1133 | #define EXTRA_OPTIONS 2 |
1134 | #else |
1135 | #define EXTRA_OPTIONS 3 |
1136 | #endif /* ALLOW_PERL_OPTIONS */ |
1137 | New(666, fakeargv, argc + EXTRA_OPTIONS + 1, char *); |
1138 | fakeargv[0] = argv[0]; |
1139 | fakeargv[1] = "-e"; |
1140 | fakeargv[2] = ""; |
1141 | #ifndef ALLOW_PERL_OPTIONS |
1142 | fakeargv[3] = "--"; |
1143 | #endif /* ALLOW_PERL_OPTIONS */ |
1144 | for (i = 1; i < argc; i++) |
1145 | fakeargv[i + EXTRA_OPTIONS] = argv[i]; |
1146 | fakeargv[argc + EXTRA_OPTIONS] = 0; |
1147 | |
1148 | exitstatus = perl_parse(my_perl, xs_init, argc + EXTRA_OPTIONS, |
1149 | fakeargv, NULL); |
1150 | if (exitstatus) |
1151 | exit( exitstatus ); |
1152 | |
1153 | sv_setpv(GvSV(gv_fetchpv("0", TRUE, SVt_PV)), argv[0]); |
81009501 |
1154 | PL_main_cv = PL_compcv; |
1155 | PL_compcv = 0; |
a798dbf2 |
1156 | |
1157 | exitstatus = perl_init(); |
1158 | if (exitstatus) |
1159 | exit( exitstatus ); |
5712119f |
1160 | dl_init(aTHX); |
a798dbf2 |
1161 | |
1162 | exitstatus = perl_run( my_perl ); |
1163 | |
1164 | perl_destruct( my_perl ); |
1165 | perl_free( my_perl ); |
1166 | |
5712119f |
1167 | PERL_SYS_TERM(); |
1168 | |
a798dbf2 |
1169 | exit( exitstatus ); |
1170 | } |
1171 | |
511dd457 |
1172 | /* yanked from perl.c */ |
a798dbf2 |
1173 | static void |
5712119f |
1174 | xs_init(pTHX) |
a798dbf2 |
1175 | { |
511dd457 |
1176 | char *file = __FILE__; |
af765ed9 |
1177 | dTARG; |
39644a26 |
1178 | dSP; |
a798dbf2 |
1179 | EOT |
af765ed9 |
1180 | print "\n#ifdef USE_DYNAMIC_LOADING"; |
1181 | print qq/\n\tnewXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);/; |
1182 | print "\n#endif\n" ; |
a0e9c8c7 |
1183 | # delete $xsub{'DynaLoader'}; |
af765ed9 |
1184 | delete $xsub{'UNIVERSAL'}; |
be6f3502 |
1185 | print("/* bootstrapping code*/\n\tSAVETMPS;\n"); |
af765ed9 |
1186 | print("\ttarg=sv_newmortal();\n"); |
a0e9c8c7 |
1187 | print "#ifdef DYNALOADER_BOOTSTRAP\n"; |
1188 | print "\tPUSHMARK(sp);\n"; |
1189 | print qq/\tXPUSHp("DynaLoader",strlen("DynaLoader"));\n/; |
1190 | print qq/\tPUTBACK;\n/; |
5712119f |
1191 | print "\tboot_DynaLoader(aTHX_ NULL);\n"; |
a0e9c8c7 |
1192 | print qq/\tSPAGAIN;\n/; |
1193 | print "#endif\n"; |
1194 | foreach my $stashname (keys %xsub){ |
be6f3502 |
1195 | if ($xsub{$stashname} ne 'Dynamic') { |
1196 | my $stashxsub=$stashname; |
1197 | $stashxsub =~ s/::/__/g; |
1198 | print "\tPUSHMARK(sp);\n"; |
a0e9c8c7 |
1199 | print qq/\tXPUSHp("$stashname",strlen("$stashname"));\n/; |
1200 | print qq/\tPUTBACK;\n/; |
5712119f |
1201 | print "\tboot_$stashxsub(aTHX_ NULL);\n"; |
a0e9c8c7 |
1202 | print qq/\tSPAGAIN;\n/; |
be6f3502 |
1203 | } |
1204 | } |
1205 | print("\tFREETMPS;\n/* end bootstrapping code */\n"); |
a0e9c8c7 |
1206 | print "}\n"; |
be6f3502 |
1207 | |
1208 | print <<'EOT'; |
1209 | static void |
5712119f |
1210 | dl_init(pTHX) |
be6f3502 |
1211 | { |
1212 | char *file = __FILE__; |
1213 | dTARG; |
39644a26 |
1214 | dSP; |
be6f3502 |
1215 | EOT |
1216 | print("/* Dynamicboot strapping code*/\n\tSAVETMPS;\n"); |
1217 | print("\ttarg=sv_newmortal();\n"); |
1218 | foreach my $stashname (@DynaLoader::dl_modules) { |
1219 | warn "Loaded $stashname\n"; |
1220 | if (exists($xsub{$stashname}) && $xsub{$stashname} eq 'Dynamic') { |
1221 | my $stashxsub=$stashname; |
1222 | $stashxsub =~ s/::/__/g; |
1223 | print "\tPUSHMARK(sp);\n"; |
a0e9c8c7 |
1224 | print qq/\tXPUSHp("$stashname",/,length($stashname),qq/);\n/; |
be6f3502 |
1225 | print qq/\tPUTBACK;\n/; |
af765ed9 |
1226 | print "#ifdef DYNALOADER_BOOTSTRAP\n"; |
1227 | warn "bootstrapping $stashname added to xs_init\n"; |
be6f3502 |
1228 | print qq/\tperl_call_method("bootstrap",G_DISCARD);\n/; |
af765ed9 |
1229 | print "\n#else\n"; |
5712119f |
1230 | print "\tboot_$stashxsub(aTHX_ NULL);\n"; |
be6f3502 |
1231 | print "#endif\n"; |
1232 | print qq/\tSPAGAIN;\n/; |
1233 | } |
af765ed9 |
1234 | } |
be6f3502 |
1235 | print("\tFREETMPS;\n/* end Dynamic bootstrapping code */\n"); |
a0e9c8c7 |
1236 | print "}\n"; |
af765ed9 |
1237 | } |
a798dbf2 |
1238 | sub dump_symtable { |
1239 | # For debugging |
1240 | my ($sym, $val); |
1241 | warn "----Symbol table:\n"; |
1242 | while (($sym, $val) = each %symtable) { |
1243 | warn "$sym => $val\n"; |
1244 | } |
1245 | warn "---End of symbol table\n"; |
1246 | } |
1247 | |
1248 | sub save_object { |
1249 | my $sv; |
1250 | foreach $sv (@_) { |
1251 | svref_2object($sv)->save; |
1252 | } |
338a6d08 |
1253 | } |
1254 | |
1255 | sub Dummy_BootStrap { } |
a798dbf2 |
1256 | |
66a2622e |
1257 | sub B::GV::savecv |
1258 | { |
1259 | my $gv = shift; |
1260 | my $package=$gv->STASH->NAME; |
1261 | my $name = $gv->NAME; |
1262 | my $cv = $gv->CV; |
7cf11ee8 |
1263 | my $sv = $gv->SV; |
1264 | my $av = $gv->AV; |
1265 | my $hv = $gv->HV; |
7cf11ee8 |
1266 | |
66a2622e |
1267 | # We may be looking at this package just because it is a branch in the |
1268 | # symbol table which is on the path to a package which we need to save |
7cf11ee8 |
1269 | # e.g. this is 'Getopt' and we need to save 'Getopt::Long' |
66a2622e |
1270 | # |
7cf11ee8 |
1271 | return unless ($unused_sub_packages{$package}); |
be6f3502 |
1272 | return unless ($$cv || $$av || $$sv || $$hv); |
1273 | $gv->save; |
66a2622e |
1274 | } |
5ed82aed |
1275 | |
66a2622e |
1276 | sub mark_package |
1277 | { |
1278 | my $package = shift; |
1279 | unless ($unused_sub_packages{$package}) |
1280 | { |
1281 | no strict 'refs'; |
1282 | $unused_sub_packages{$package} = 1; |
6771324e |
1283 | if (defined @{$package.'::ISA'}) |
66a2622e |
1284 | { |
1285 | foreach my $isa (@{$package.'::ISA'}) |
1286 | { |
1287 | if ($isa eq 'DynaLoader') |
1288 | { |
1289 | unless (defined(&{$package.'::bootstrap'})) |
1290 | { |
1291 | warn "Forcing bootstrap of $package\n"; |
1292 | eval { $package->bootstrap }; |
1293 | } |
1294 | } |
a0e9c8c7 |
1295 | # else |
66a2622e |
1296 | { |
1297 | unless ($unused_sub_packages{$isa}) |
1298 | { |
1299 | warn "$isa saved (it is in $package\'s \@ISA)\n"; |
1300 | mark_package($isa); |
1301 | } |
1302 | } |
1303 | } |
1304 | } |
1305 | } |
1306 | return 1; |
1307 | } |
1308 | |
1309 | sub should_save |
1310 | { |
1311 | no strict qw(vars refs); |
1312 | my $package = shift; |
1313 | $package =~ s/::$//; |
1314 | return $unused_sub_packages{$package} = 0 if ($package =~ /::::/); # skip ::::ISA::CACHE etc. |
cf86991c |
1315 | # warn "Considering $package\n";#debug |
66a2622e |
1316 | foreach my $u (grep($unused_sub_packages{$_},keys %unused_sub_packages)) |
1317 | { |
1318 | # If this package is a prefix to something we are saving, traverse it |
1319 | # but do not mark it for saving if it is not already |
1320 | # e.g. to get to Getopt::Long we need to traverse Getopt but need |
1321 | # not save Getopt |
1322 | return 1 if ($u =~ /^$package\:\:/); |
1323 | } |
1324 | if (exists $unused_sub_packages{$package}) |
1325 | { |
cf86991c |
1326 | # warn "Cached $package is ".$unused_sub_packages{$package}."\n"; |
cfa4c8ee |
1327 | delete_unsaved_hashINC($package) unless $unused_sub_packages{$package} ; |
1328 | return $unused_sub_packages{$package}; |
66a2622e |
1329 | } |
1330 | # Omit the packages which we use (and which cause grief |
1331 | # because of fancy "goto &$AUTOLOAD" stuff). |
1332 | # XXX Surely there must be a nicer way to do this. |
1333 | if ($package eq "FileHandle" || $package eq "Config" || |
cf86991c |
1334 | $package eq "SelectSaver" || $package =~/^(B|IO)::/) |
66a2622e |
1335 | { |
cfa4c8ee |
1336 | delete_unsaved_hashINC($package); |
66a2622e |
1337 | return $unused_sub_packages{$package} = 0; |
1338 | } |
1339 | # Now see if current package looks like an OO class this is probably too strong. |
1340 | foreach my $m (qw(new DESTROY TIESCALAR TIEARRAY TIEHASH TIEHANDLE)) |
1341 | { |
b368a11e |
1342 | if (UNIVERSAL::can($package, $m)) |
66a2622e |
1343 | { |
1344 | warn "$package has method $m: saving package\n";#debug |
1345 | return mark_package($package); |
1346 | } |
1347 | } |
cfa4c8ee |
1348 | delete_unsaved_hashINC($package); |
66a2622e |
1349 | return $unused_sub_packages{$package} = 0; |
a798dbf2 |
1350 | } |
cfa4c8ee |
1351 | sub delete_unsaved_hashINC{ |
1352 | my $packname=shift; |
1353 | $packname =~ s/\:\:/\//g; |
1354 | $packname .= '.pm'; |
59c10aa2 |
1355 | # warn "deleting $packname" if $INC{$packname} ;# debug |
cfa4c8ee |
1356 | delete $INC{$packname}; |
1357 | } |
66a2622e |
1358 | sub walkpackages |
1359 | { |
1360 | my ($symref, $recurse, $prefix) = @_; |
1361 | my $sym; |
1362 | my $ref; |
1363 | no strict 'vars'; |
1364 | local(*glob); |
1365 | $prefix = '' unless defined $prefix; |
1366 | while (($sym, $ref) = each %$symref) |
1367 | { |
1368 | *glob = $ref; |
1369 | if ($sym =~ /::$/) |
1370 | { |
1371 | $sym = $prefix . $sym; |
b4e94495 |
1372 | if ($sym ne "main::" && $sym ne "<none>::" && &$recurse($sym)) |
66a2622e |
1373 | { |
1374 | walkpackages(\%glob, $recurse, $sym); |
1375 | } |
1376 | } |
1377 | } |
1378 | } |
338a6d08 |
1379 | |
1380 | |
66a2622e |
1381 | sub save_unused_subs |
1382 | { |
1383 | no strict qw(refs); |
a9b6343a |
1384 | &descend_marked_unused; |
66a2622e |
1385 | warn "Prescan\n"; |
1386 | walkpackages(\%{"main::"}, sub { should_save($_[0]); return 1 }); |
1387 | warn "Saving methods\n"; |
1388 | walksymtable(\%{"main::"}, "savecv", \&should_save); |
a798dbf2 |
1389 | } |
1390 | |
0cc1d052 |
1391 | sub save_context |
1392 | { |
1393 | my $curpad_nam = (comppadlist->ARRAY)[0]->save; |
1394 | my $curpad_sym = (comppadlist->ARRAY)[1]->save; |
1395 | my $inc_hv = svref_2object(\%INC)->save; |
1396 | my $inc_av = svref_2object(\@INC)->save; |
56eca212 |
1397 | my $amagic_generate= amagic_generation; |
0cc1d052 |
1398 | $init->add( "PL_curpad = AvARRAY($curpad_sym);", |
1399 | "GvHV(PL_incgv) = $inc_hv;", |
1400 | "GvAV(PL_incgv) = $inc_av;", |
1401 | "av_store(CvPADLIST(PL_main_cv),0,SvREFCNT_inc($curpad_nam));", |
56eca212 |
1402 | "av_store(CvPADLIST(PL_main_cv),1,SvREFCNT_inc($curpad_sym));", |
1403 | "PL_amagic_generation= $amagic_generate;" ); |
0cc1d052 |
1404 | } |
1405 | |
a9b6343a |
1406 | sub descend_marked_unused { |
1407 | foreach my $pack (keys %unused_sub_packages) |
1408 | { |
1409 | mark_package($pack); |
1410 | } |
1411 | } |
73544139 |
1412 | |
a798dbf2 |
1413 | sub save_main { |
66a2622e |
1414 | warn "Starting compile\n"; |
66a2622e |
1415 | warn "Walking tree\n"; |
73544139 |
1416 | seek(STDOUT,0,0); #exclude print statements in BEGIN{} into output |
a798dbf2 |
1417 | walkoptree(main_root, "save"); |
1418 | warn "done main optree, walking symtable for extras\n" if $debug_cv; |
66a2622e |
1419 | save_unused_subs(); |
0cc1d052 |
1420 | my $init_av = init_av->save; |
81009501 |
1421 | $init->add(sprintf("PL_main_root = s\\_%x;", ${main_root()}), |
1422 | sprintf("PL_main_start = s\\_%x;", ${main_start()}), |
5ab5c7a4 |
1423 | "PL_initav = (AV *) $init_av;"); |
0cc1d052 |
1424 | save_context(); |
5ed82aed |
1425 | warn "Writing output\n"; |
a798dbf2 |
1426 | output_boilerplate(); |
1427 | print "\n"; |
1428 | output_all("perl_init"); |
1429 | print "\n"; |
1430 | output_main(); |
1431 | } |
1432 | |
1433 | sub init_sections { |
1434 | my @sections = (init => \$init, decl => \$decl, sym => \$symsect, |
1435 | binop => \$binopsect, condop => \$condopsect, |
7934575e |
1436 | cop => \$copsect, padop => \$padopsect, |
a798dbf2 |
1437 | listop => \$listopsect, logop => \$logopsect, |
1438 | loop => \$loopsect, op => \$opsect, pmop => \$pmopsect, |
1439 | pvop => \$pvopsect, svop => \$svopsect, unop => \$unopsect, |
1440 | sv => \$svsect, xpv => \$xpvsect, xpvav => \$xpvavsect, |
1441 | xpvhv => \$xpvhvsect, xpvcv => \$xpvcvsect, |
1442 | xpviv => \$xpvivsect, xpvnv => \$xpvnvsect, |
1443 | xpvmg => \$xpvmgsect, xpvlv => \$xpvlvsect, |
1444 | xrv => \$xrvsect, xpvbm => \$xpvbmsect, |
af765ed9 |
1445 | xpvio => \$xpviosect); |
a798dbf2 |
1446 | my ($name, $sectref); |
1447 | while (($name, $sectref) = splice(@sections, 0, 2)) { |
66a2622e |
1448 | $$sectref = new B::C::Section $name, \%symtable, 0; |
a798dbf2 |
1449 | } |
0cc1d052 |
1450 | } |
1451 | |
1452 | sub mark_unused |
1453 | { |
1454 | my ($arg,$val) = @_; |
1455 | $unused_sub_packages{$arg} = $val; |
a798dbf2 |
1456 | } |
1457 | |
1458 | sub compile { |
1459 | my @options = @_; |
1460 | my ($option, $opt, $arg); |
1461 | OPTION: |
1462 | while ($option = shift @options) { |
1463 | if ($option =~ /^-(.)(.*)/) { |
1464 | $opt = $1; |
1465 | $arg = $2; |
1466 | } else { |
1467 | unshift @options, $option; |
1468 | last OPTION; |
1469 | } |
1470 | if ($opt eq "-" && $arg eq "-") { |
1471 | shift @options; |
1472 | last OPTION; |
1473 | } |
1474 | if ($opt eq "w") { |
1475 | $warn_undefined_syms = 1; |
1476 | } elsif ($opt eq "D") { |
1477 | $arg ||= shift @options; |
1478 | foreach $arg (split(//, $arg)) { |
1479 | if ($arg eq "o") { |
1480 | B->debug(1); |
1481 | } elsif ($arg eq "c") { |
1482 | $debug_cops = 1; |
1483 | } elsif ($arg eq "A") { |
1484 | $debug_av = 1; |
1485 | } elsif ($arg eq "C") { |
1486 | $debug_cv = 1; |
1487 | } elsif ($arg eq "M") { |
1488 | $debug_mg = 1; |
1489 | } else { |
1490 | warn "ignoring unknown debug option: $arg\n"; |
1491 | } |
1492 | } |
1493 | } elsif ($opt eq "o") { |
1494 | $arg ||= shift @options; |
1495 | open(STDOUT, ">$arg") or return "$arg: $!\n"; |
1496 | } elsif ($opt eq "v") { |
1497 | $verbose = 1; |
1498 | } elsif ($opt eq "u") { |
1499 | $arg ||= shift @options; |
0cc1d052 |
1500 | mark_unused($arg,undef); |
a798dbf2 |
1501 | } elsif ($opt eq "f") { |
1502 | $arg ||= shift @options; |
1503 | if ($arg eq "cog") { |
1504 | $pv_copy_on_grow = 1; |
1505 | } elsif ($arg eq "no-cog") { |
1506 | $pv_copy_on_grow = 0; |
1507 | } |
1508 | } elsif ($opt eq "O") { |
1509 | $arg = 1 if $arg eq ""; |
1510 | $pv_copy_on_grow = 0; |
1511 | if ($arg >= 1) { |
1512 | # Optimisations for -O1 |
1513 | $pv_copy_on_grow = 1; |
1514 | } |
dc333d64 |
1515 | } elsif ($opt eq "l") { |
1516 | $max_string_len = $arg; |
a798dbf2 |
1517 | } |
1518 | } |
1519 | init_sections(); |
1520 | if (@options) { |
1521 | return sub { |
1522 | my $objname; |
1523 | foreach $objname (@options) { |
1524 | eval "save_object(\\$objname)"; |
1525 | } |
1526 | output_all(); |
1527 | } |
1528 | } else { |
1529 | return sub { save_main() }; |
1530 | } |
1531 | } |
1532 | |
1533 | 1; |
7f20e9dd |
1534 | |
1535 | __END__ |
1536 | |
1537 | =head1 NAME |
1538 | |
1539 | B::C - Perl compiler's C backend |
1540 | |
1541 | =head1 SYNOPSIS |
1542 | |
1543 | perl -MO=C[,OPTIONS] foo.pl |
1544 | |
1545 | =head1 DESCRIPTION |
1546 | |
1a52ab62 |
1547 | This compiler backend takes Perl source and generates C source code |
1548 | corresponding to the internal structures that perl uses to run |
1549 | your program. When the generated C source is compiled and run, it |
1550 | cuts out the time which perl would have taken to load and parse |
1551 | your program into its internal semi-compiled form. That means that |
1552 | compiling with this backend will not help improve the runtime |
1553 | execution speed of your program but may improve the start-up time. |
1554 | Depending on the environment in which your program runs this may be |
1555 | either a help or a hindrance. |
1556 | |
1557 | =head1 OPTIONS |
1558 | |
1559 | If there are any non-option arguments, they are taken to be |
1560 | names of objects to be saved (probably doesn't work properly yet). |
1561 | Without extra arguments, it saves the main program. |
1562 | |
1563 | =over 4 |
1564 | |
1565 | =item B<-ofilename> |
1566 | |
1567 | Output to filename instead of STDOUT |
1568 | |
1569 | =item B<-v> |
1570 | |
1571 | Verbose compilation (currently gives a few compilation statistics). |
1572 | |
1573 | =item B<--> |
1574 | |
1575 | Force end of options |
1576 | |
1577 | =item B<-uPackname> |
1578 | |
1579 | Force apparently unused subs from package Packname to be compiled. |
1580 | This allows programs to use eval "foo()" even when sub foo is never |
1581 | seen to be used at compile time. The down side is that any subs which |
1582 | really are never used also have code generated. This option is |
1583 | necessary, for example, if you have a signal handler foo which you |
1584 | initialise with C<$SIG{BAR} = "foo">. A better fix, though, is just |
1585 | to change it to C<$SIG{BAR} = \&foo>. You can have multiple B<-u> |
1586 | options. The compiler tries to figure out which packages may possibly |
1587 | have subs in which need compiling but the current version doesn't do |
1588 | it very well. In particular, it is confused by nested packages (i.e. |
1589 | of the form C<A::B>) where package C<A> does not contain any subs. |
1590 | |
1591 | =item B<-D> |
1592 | |
1593 | Debug options (concatenated or separate flags like C<perl -D>). |
1594 | |
1595 | =item B<-Do> |
1596 | |
1597 | OPs, prints each OP as it's processed |
1598 | |
1599 | =item B<-Dc> |
1600 | |
1601 | COPs, prints COPs as processed (incl. file & line num) |
1602 | |
1603 | =item B<-DA> |
1604 | |
1605 | prints AV information on saving |
1606 | |
1607 | =item B<-DC> |
1608 | |
1609 | prints CV information on saving |
1610 | |
1611 | =item B<-DM> |
1612 | |
1613 | prints MAGIC information on saving |
1614 | |
1615 | =item B<-f> |
1616 | |
1617 | Force optimisations on or off one at a time. |
1618 | |
1619 | =item B<-fcog> |
1620 | |
1621 | Copy-on-grow: PVs declared and initialised statically. |
1622 | |
1623 | =item B<-fno-cog> |
1624 | |
1625 | No copy-on-grow. |
1626 | |
1627 | =item B<-On> |
1628 | |
1629 | Optimisation level (n = 0, 1, 2, ...). B<-O> means B<-O1>. Currently, |
1630 | B<-O1> and higher set B<-fcog>. |
1631 | |
dc333d64 |
1632 | =item B<-llimit> |
1633 | |
1634 | Some C compilers impose an arbitrary limit on the length of string |
1635 | constants (e.g. 2048 characters for Microsoft Visual C++). The |
1636 | B<-llimit> options tells the C backend not to generate string literals |
1637 | exceeding that limit. |
1638 | |
a45bd81d |
1639 | =back |
1640 | |
1a52ab62 |
1641 | =head1 EXAMPLES |
1642 | |
1643 | perl -MO=C,-ofoo.c foo.pl |
1644 | perl cc_harness -o foo foo.c |
1645 | |
1646 | Note that C<cc_harness> lives in the C<B> subdirectory of your perl |
1647 | library directory. The utility called C<perlcc> may also be used to |
1648 | help make use of this compiler. |
1649 | |
dc333d64 |
1650 | perl -MO=C,-v,-DcA,-l2048 bar.pl > /dev/null |
1a52ab62 |
1651 | |
1652 | =head1 BUGS |
1653 | |
1654 | Plenty. Current status: experimental. |
7f20e9dd |
1655 | |
1656 | =head1 AUTHOR |
1657 | |
1658 | Malcolm Beattie, C<mbeattie@sable.ox.ac.uk> |
1659 | |
1660 | =cut |