forked from schacon/perl
/
Changes5.002
4003 lines (2844 loc) · 119 KB
/
Changes5.002
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
-------------
Version 5.002
-------------
The main enhancement to the Perl core was the addition of prototypes.
Many of the modules that come with Perl have been extensively upgraded.
Other than that, nearly all the changes for 5.002 were bug fixes of one
variety or another, so here's the bug list, along with the "resolution"
for each of them. If you wish to correspond about any of them, please
include the bug number (if any).
Changes specific to the Configure and build process are described
at the bottom.
Added APPLLIB_EXP for embedded perl library support.
Files patched: perl.c
Couldn't define autoloaded routine by assignment to typeglob.
Files patched: pp_hot.c sv.c
NETaa13525: Tiny patch to fix installman -n
From: Larry Wall
Files patched: installman
NETaa13525: de-documented \v
Files patched: pod/perlop.pod pod/perlre.pod
NETaa13525: doc changes
Files patched: pod/perlop.pod pod/perltrap.pod
NETaa13525: perlxs update from Dean Roehrich
Files patched: pod/perlxs.pod
NETaa13525: rename powerunix to powerux
Files patched: MANIFEST hints/powerux.sh
NETaa13540: VMS uses CLK_TCK for HZ
Files patched: pp_sys.c
NETaa13721: pad_findlex core dumps on bad CvOUTSIDE()
From: Carl Witty
Files patched: op.c sv.c toke.c
Each CV has a reference to the CV containing it lexically. Unfortunately,
it didn't reference-count this reference, so when the outer CV was freed,
we ended up with a pointer to memory that got reused later as some other kind
of SV.
NETaa13721: warning suppression
Files patched: toke.c
(same)
NETaa13722: walk.c had inconsistent static declarations
From: Tim Bunce
Files patched: x2p/walk.c
Consolidated the various declarations and made them consistent with
the actual definitions.
NETaa13724: -MPackage=args patch
From: Tim Bunce
Files patched: perl.c pod/perlrun.pod
Added in the -MPackage=args patch too.
NETaa13729: order-of-evaluation dependency in scope.c on leaving REGCONTEXT
From: "Jason Shirk"
Files patched: scope.c
Did
I32 delta = SSPOPINT;
savestack_ix -= delta; /* regexp must have croaked */
instead.
NETaa13731: couldn't assign external lexical array to itself
From: oneill@cs.sfu.ca
Files patched: op.c
The pad_findmy routine was only checking previous statements for previous
mention of external lexicals, so the fact that the current statement
already mentioned @list was not noted. It therefore allocated another
reference to the outside lexical, and this didn't compare equal when
the assigment parsing code was trying to determine whether there was a
common variable on either side of the equals. Since it didn't see the
same variable, it thought it could avoid making copies of the values on
the stack during list assignment. Unfortunately, before using those
values, the list assignment has to zero out the target array, which
destroys the values.
The fix was to make pad_findmy search the current statement as well. This
was actually a holdover from some old code that was trying to delay
introduction of "my" variables until the next statement. This is now
done with a different mechanism, so the fix should not adversely affect
that.
NETaa13733: s/// doesn't free old string when using copy mode
From: Larry Wall
Files patched: pp_ctl.c pp_hot.c
When I removed the use of sv_replace(), I simply forgot to free the old char*.
NETaa13736: closures leaked memory
From: Carl Witty
Files patched: op.c pp.c
This is a specific example of a more general bug, fixed as NETaa13760, having
to do with reference counts on comppads.
NETaa13739: XSUB interface caches gimme in case XSUB clobbers it
From: Dean Roehrich
Files patched: pp_hot.c
Applied suggest patch. Also deleted second gimme declaration as redundant.
NETaa13760: comppad reference counts were inconsistent
From: Larry Wall
Files patched: op.c perl.c pp_ctl.c toke.c
All official references to comppads are supposed to be through compcv now,
but the transformation was not complete, resulting in memory leakage.
NETaa13761: sv_2pv() wrongly preferred IV to NV when SV was readonly
From: "Jack R. Lawler"
Files patched: sv.c
Okay, I understand how this one happened. This is a case where a
beneficial fix uncovered a bug elsewhere. I changed the constant
folder to prefer integer results over double if the numbers are the
same. In this case, they aren't, but it leaves the integer value there
anyway because the storage is already allocated for it, and it *might*
be used in an integer context. And since it's producing a constant, it
sets READONLY. Unfortunately, sv_2pv() bogusly preferred the integer
value to the double when READONLY was set. This never showed up if you
just said
print 1.4142135623731;
because in that case, there was already a string value.
NETaa13772: shmwrite core dumps consistently
From: Gabe Schaffer
Files patched: opcode.h opcode.pl
The shmwrite operator is a list operator but neglected to push a stack
mark beforehand, because an 'm' was missing from opcode.pl.
NETaa13773: $. was misdocumented as read-only.
From: Inaba Hiroto
Files patched: pod/perlvar.pod
<1.array-element-read-only>
% perl -le '$,=", "; $#w=5; for (@w) { $_=1; } print @w'
Modification of a read-only value attempted at -e line 1.
% perl4 -le '$,=", "; $#w=5; for (@w) { $_=1; } print @w'
1, 1, 1, 1, 1, 1
This one may stay the way it is for performance reasons.
<2.begin-local-RS>
% cat abc
a
b
c
% perl -e 'BEGIN { local $/ = ""; } print "$.:$_" while <>;' abc
1:a
b
c
% perl -e '{ local $/ = ""; } print "$.:$_" while <>;' abc
1:a
2:b
3:c
$/ wasn't initialized early enough, so local set it back to permanently
undefined on exit from the block.
<3.grep-x0-bug>
% perl -le 'print grep(/^-/ ? ($x=$_) x 0 : 1, "a", "-b", "c");'
a
% perl4 -le 'print grep(/^-/ ? ($x=$_) x 0 : 1, "a", "-b", "c");'
ac
An extra mark was left on the stack if (('x') x $repeat) was used in a scalar
context.
<4.input-lineno-assign>
# perl -w does not complain about assignment to $. (Is this just a feature?)
# perlvar.pod says "This variable should be considered read-only."
% cat abc
a
b
c
% perl -wnle '$. = 10 if $. == 2; print "$.:$_"' abc
1:a
10:b
11:c
Fixed doc.
<5.local-soft-ref.bug>
% perl -e 'local ${"a"}=1;'
zsh: 529 segmentation fault perl -e 'local ${"a"}=1;'
Now says
Can't localize a reference at -e line 1.
<6.package-readline>
% perl -e 'package foo; sub foo { 1; } package main; $_ = foo::foo(); print'
1
% perl -e '
package readline; sub foo { 1; } package main; $_ = readline::foo(); print'
Undefined subroutine &main::foo called at -e line 1.
% perl -e '
package readline; sub foo { 1; } package main; $_ = &readline::foo(); print'
1
Now treats foo::bar correctly even if foo is a keyword.
<7.page-head-set-to-null-string>
% cat page-head
#From: russell@ccu1.auckland.ac.nz (Russell Fulton)
#Newsgroups: comp.lang.perl
#Subject: This script causes Perl 5.00 to sementation fault
#Date: 15 Nov 1994 00:11:37 GMT
#Message-ID: <3a8ubp$jrj@net.auckland.ac.nz>
select((select(STDOUT), $^='')[0]); #this is the critical line
$a = 'a';
write ;
exit;
format STDOUT =
@<<<<<<
$a
.
% perl page-head
zsh: 1799 segmentation fault perl /tmp/page-head
Now says
Undefined top format "main::" called at ./try line 11.
<8.sub-as-index>
# parser bug?
% perl -le 'sub foo {0}; $x[0]=0;$x[foo]<=0'
Unterminated <> operator at -e line 1.
% perl -le 'sub foo {0}; $x[0]=0;$x[foo()]<=0'
A right square bracket now forces expectation of an operator.
<9.unary-minus-to-regexp-var>
% cat minus-reg
#From: Michael Cook <mcook@cognex.com>
#Newsgroups: comp.lang.perl
#Subject: bug: print -$1
#Date: 01 Feb 1995 15:31:25 GMT
#Message-ID: <MCOOK.95Feb1103125@erawan.cognex.com>
$_ = "123";
/\d+/;
print $&, "\n";
print -$&, "\n";
print 0-$&, "\n";
% perl minus-reg
123
123
-123
Apparently already fixed in my copy.
<10.vec-segv>
% cat vec-bug
## Offset values are changed for my machine.
#From: augustin@gdstech.grumman.com (Conrad Augustin)
#Subject: perl5 vec() bug?
#Message-ID: <1994Nov22.193728.25762@gdstech.grumman.com>
#Date: Tue, 22 Nov 1994 19:37:28 GMT
#The following two statements each produce a segmentation fault in perl5:
#vec($a, 21406, 32) = 1; # seg fault
vec($a, 42813, 16) = 1; # seg fault
#When the offset values are one less, all's well:
#vec($a, 21405, 32) = 1; # ok
#vec($a, 42812, 16) = 1; # ok
#Interestingly, this is ok for all high values of N:
#$N=1000000; vec($a, $N, 8) = 1;
% perl vec-bug
zsh: 1806 segmentation fault perl vec-bug
Can't reproduce this one.
NETaa13773: $/ not correctly localized in BEGIN
Files patched: perl.c
(same)
NETaa13773: foo::bar was misparsed if foo was a reserved word
Files patched: toke.c toke.c
(same)
NETaa13773: right square bracket didn't force expectation of operator
Files patched: toke.c
(same)
NETaa13773: scalar ((x) x $repeat) left stack mark
Files patched: op.c
(same)
NETaa13778: -w coredumps on <$>
From: Hans Mulder
Files patched: pp_hot.c toke.c
Now produces suggested error message. Also installed guard in warning code
that coredumped.
NETaa13779: foreach didn't use savestack mechanism
From: Hans Mulder
Files patched: cop.h pp_ctl.c
The foreach mechanism saved the old scalar value on the context stack
rather than the savestack. It could consequently get out of sync if
unexpectedly unwound.
NETaa13785: GIMME sometimes used wrong context frame
From: Greg Earle
Files patched: embed.h global.sym op.h pp_ctl.c proto.h
The expression inside the return was taking its context from the immediately
surrounding block rather than the innermost surrounding subroutine call.
NETaa13797: could modify sv_undef through auto-vivification
From: Ilya Zakharevich
Files patched: pp.c
Inserted the missing check for readonly values on auto-vivification.
NETaa13798: if (...) {print} treats print as quoted
From: Larry Wall
Files patched: toke.c
The trailing paren of the condition was setting expectations to XOPERATOR
rather than XBLOCK, so it was being treated like ${print}.
NETaa13926: commonality was not detected in assignments using COND_EXPR
From: Mark Hanson
Files patched: opcode.h opcode.pl
The assignment compiler didn't check the 2nd and 3rd args of a ?:
for commonality. It still doesn't, but I made ?: into a "dangerous"
operator so it is forced to treat it as common.
NETaa13957: was marking the PUSHMARK as modifiable rather than the arg
From: David Couture
Files patched: op.c sv.c
It was marking the PUSHMARK as modifiable rather than the arg.
NETaa13962: documentation of behavior of scalar <*> was unclear
From: Tom Christiansen
Files patched: pod/perlop.pod
Added the following to perlop:
A glob only evaluates its (embedded) argument when it is starting a new
list. All values must be read before it will start over. In a list
context this isn't important, because you automatically get them all
anyway. In a scalar context, however, the operator returns the next value
each time it is called, or a FALSE value if you've just run out. Again,
FALSE is returned only once. So if you're expecting a single value from
a glob, it is much better to say
($file) = <blurch*>;
than
$file = <blurch*>;
because the latter will alternate between returning a filename and
returning FALSE.
NETaa13986: split ignored /m pattern modifier
From: Winfried Koenig
Files patched: pp.c
Fixed to work like m// and s///.
NETaa13992: regexp comments not seen after + in non-extended regexp
From: Mark Knutsen
Files patched: regcomp.c
The code to skip regexp comments was guarded by a conditional that only
let it work when /x was in effect.
NETaa14014: use subs should not count as definition, only as declaration
From: Keith Thompson
Files patched: sv.c
On *foo = \&bar, doesn't set GVf_IMPORTED if foo and bar are in same package.
NETaa14021: sv_inc and sv_dec "upgraded" magical SV to non-magical
From: Paul A Sand
Also: Andreas Koenig
Files patched: sv.c
The sv_inc() and sv_dec() routines "upgraded" null magical SVs to non-magical.
NETaa14086: require should check tainting
From: Karl Simon Berg
Files patched: pp_ctl.c
Since we shouldn't allow tainted requires anyway, it now says:
Insecure dependency in require while running with -T switch at tst.pl line 1.
NETaa14104: negation fails on magical variables like $1
From: tim
Files patched: pp.c
Negation was failing on magical values like $1. It was testing the wrong
bits and also failed to provide a final "else" if none of the bits matched.
NETaa14107: deep sort return leaked contexts
From: Quentin Fennessy
Files patched: pp_ctl.c
Needed to call dounwind() appropriately.
NETaa14129: attempt to localize via a reference core dumps
From: Michele Sardo
Files patched: op.c pod/perldiag.pod
Now produces an error "Can't localize a reference", with explanation in
perldiag.
NETaa14138: substr() and s/// can cause core dump
From: Andrew Vignaux
Files patched: pp_hot.c
Forgot to call SvOOK_off() on the SV before freeing its string.
NETaa14145: ${@INC}[0] dumped core in debugger
From: Hans Mulder
Files patched: sv.c
Now croaks "Bizarre copy of ARRAY in block exit", which is better than
a core dump. The fact that ${@INC}[0] means $INC[0] outside the debugger
is a different bug.
NETaa14147: bitwise assignment ops wipe out byte of target string
From: Jim Richardson
Files patched: doop.c
The code was assuming that the target was not either of the two operands,
which is false for an assignment operator.
NETaa14153: lexing of lexicals in patterns fooled by character class
From: Dave Bianchi
Files patched: toke.c
It never called the dwimmer, which is how it fooled it.
NETaa14154: allowed autoloaded methods by recognizing sub method; declaration
From: Larry Wall
Files patched: gv.c
Made sub method declaration sufficient for autoloader to stop searching on.
NETaa14156: shouldn't optimize block scope on tainting
From: Pete Peterson
Files patched: op.c toke.c
I totally disabled the block scope optimization when running tainted.
NETaa14157: -T and -B only allowed 1/30 "odd" characters--changed to 1/3
From: Tor Lillqvist
Files patched: pp_sys.c
Applied suggested patch.
NETaa14160: deref of null symbol should produce null list
From: Jared Rhine
Files patched: pp_hot.c
It didn't check for list context before returning undef.
NETaa14162: POSIX::gensym now returns a symbol reference
From: Josh N. Pritikin
Also: Tim Bunce
Files patched: ext/POSIX/POSIX.pm
Applied suggested patch.
NETaa14164: POSIX autoloader now distinguishes non-constant "constants"
From: Tim Bunce <Tim.Bunce@ig.co.uk>
Files patched: ext/POSIX/POSIX.pm ext/POSIX/POSIX.xs
The .xs file now distinguishes non-constant "constants" by setting EAGAIN.
This will also let us use #ifdef within the .xs file to de-constantify
any other macros that happen not to be constants even if they don't use
an argument.
NETaa14166: missing semicolon after "my" induces core dump
From: Thomas Kofler
Files patched: toke.c
The parser was left thinking it was still processing a "my", and flubbed.
I made it wipe out the "in_my" variable on a syntax error.
NETaa14166: missing semicolon after "my" induces core dump"
Files patched: toke.c
(same)
NETaa14206: can now use English and strict at the same time
From: Andrew Wilcox
Files patched: sv.c
It now counts imported symbols as okay under "use strict".
NETaa14206: can now use English and strict at the same time
Files patched: gv.c pod/perldiag.pod
(same)
NETaa14265: elseif now produces severe warning
From: Yutao Feng
Files patched: pod/perldiag.pod toke.c
Now complains explicitly about "elseif".
NETaa14279: list assignment propagated taintedness to independent scalars
From: Tim Freeman
Files patched: pp_hot.c
List assignment needed to be modified so that tainting didn't propagate
between independent scalar values.
NETaa14312: undef in @EXPORTS core dumps
From: William Setzer
Files patched: lib/Exporter.pm
Now says:
Unable to create sub named "t::" at lib/Exporter.pm line 159.
Illegal null symbol in @t::EXPORT at -e line 1
BEGIN failed--compilation aborted at -e line 1.
NETaa14312: undef in @EXPORTS core dumps
Files patched: pod/perldiag.pod sv.c
(same)
NETaa14321: literal @array check shouldn't happen inside embedded expressions
From: Mark H. Nodine
Files patched: toke.c
The general solution to this is to disable the literal @array check within
any embedded expression. For instance, this also failed bogusly:
print "$foo{@foo}";
The reason fixing this also fixes the s///e problem is that the lexer
effectively puts the RHS into a do {} block, making the expression
embedded within curlies, as far as the error message is concerned.
NETaa14322: now localizes $! during POSIX::AUTOLOAD
From: Larry Wall
Files patched: ext/POSIX/POSIX.pm
Added local $! = 0.
NETaa14324: defined() causes spurious sub existence
From: "Andreas Koenig"
Files patched: op.c pp.c
It called pp_rv2cv which wrongly assumed it could add any sub it referenced.
NETaa14336: use Module () forces import of nothing
From: Tim Bunce
Files patched: op.c
use Module () now refrains from calling import at all.
NETaa14353: added special HE allocator
From: Larry Wall
Files patched: global.sym
NETaa14353: added special HE allocator
Files patched: hv.c perl.h
NETaa14353: array extension now converts old memory to SV storage.
Files patched: av.c av.h sv.c
NETaa14353: hashes now convert old storage into SV arenas.
Files patched: global.sym
NETaa14353: hashes now convert old storage into SV arenas.
Files patched: hv.c perl.h
NETaa14353: upgraded SV arena allocation
Files patched: proto.h
NETaa14353: upgraded SV arena allocation
Files patched: perl.c sv.c
NETaa14422: added rudimentary prototypes
From: Gisle Aas
Files patched: Makefile.SH op.c op.c perly.c perly.c.diff perly.h perly.y proto.h sv.c toke.c
Message-Id: <9509290018.AA21548@scalpel.netlabs.com>
To: doughera@lafcol.lafayette.edu (Andy Dougherty)
Cc: perl5-porters@africa.nicoh.com
Subject: Re: Jumbo Configure patch vs. 1m.
Date: Thu, 28 Sep 95 17:18:54 -0700
From: lwall@scalpel.netlabs.com (Larry Wall)
: No. Larry's currently got the patch pumpkin for all such core perl topics.
I dunno whether you should let me have the patch pumpkin or not. To fix
a Sev 2 I just hacked in rudimentary prototypes. :-)
We can now define true unary subroutines, as well as argumentless
subroutines:
sub baz () { 12; } # Must not have argument
sub bar ($) { $_[0] * 7 } # Must have exactly one argument
sub foo ($@) { print "@_\n" } # Must have at least one argument
foo bar baz / 2 || "oops", "is the answer";
This prints "42 is the answer" on my machine. That is, it's the same as
foo( bar( baz() / 2) || "oops", "is the answer");
Attempting to compile
foo;
results in
Too few arguments for main::foo at ./try line 8, near "foo;"
Compiling
bar 1,2,3;
results in
Too many arguments for main::bar at ./try line 8, near "foo;"
But
@array = ('a','b','c');
foo @array, @array;
prints "3 a b c" because the $ puts the first arg of foo into scalar context.
The main win at this point is that we can say
sub AAA () { 1; }
sub BBB () { 2; }
and the user can say AAA + BBB and get 3.
I'm not quite sure how this interacts with autoloading though. I fear
POSIX.pm will need to say
sub E2BIG ();
sub EACCES ();
sub EAGAIN ();
sub EBADF ();
sub EBUSY ();
...
sub _SC_STREAM_MAX ();
sub _SC_TZNAME_MAX ();
sub _SC_VERSION ();
unless we can figure out how to efficiently declare a default prototype
at import time. Meaning, not using eval. Currently
*foo = \&bar;
(the ordinary import mechanism) implicitly stubs &bar with no prototype if
&bar is not yet declared. It's almost like you want an AUTOPROTO to
go with your AUTOLOAD.
Another thing to rub one's 5 o'clock shadow over is that there's no way
to apply a prototype to a method call at compile time.
And no, I don't want to have the
sub howabout ($formal, @arguments) { ... }
argument right now.
Larry
NETaa14422: couldn't take reference of a prototyped function
Files patched: op.c
(same)
NETaa14423: use didn't allow expressions involving the scratch pad
From: Graham Barr
Files patched: op.c perly.c perly.c.diff perly.y proto.h vms/perly_c.vms
Applied suggested patch.
NETaa14444: lexical scalar didn't autovivify
From: Gurusamy Sarathy
Files patched: op.c pp_hot.c
It didn't have code in pp_padsv to do the right thing.
NETaa14448: caller could dump core when used within an eval or require
From: Danny R. Faught
Files patched: pp_ctl.c
caller() was incorrectly assuming the context stack contained a subroutine
context when it in fact contained an eval context.
NETaa14451: improved error message on bad pipe filehandle
From: Danny R. Faught
Files patched: pp_sys.c
Now says the slightly more informative
Can't use an undefined value as filehandle reference at ./try line 3.
NETaa14462: pp_dbstate had a scope leakage on recursion suppression
From: Tim Bunce
Files patched: pp_ctl.c
Swapped the code in question around.
NETaa14482: sv_unref freed ref prematurely at times
From: Gurusamy Sarathy
Files patched: sv.c
Made sv_unref() mortalize rather than free the old reference.
NETaa14484: appending string to array produced bizarre results
From: Greg Ward
Also: Malcolm Beattie
Files patched: pp_hot.c
Will now say, "Can't coerce ARRAY to string".
NETaa14525: assignment to globs didn't reset them correctly
From: Gurusamy Sarathy
Files patched: sv.c
Applied parts of patch not overridden by subsequent patch.
NETaa14529: a partially matching subpattern could spoof infinity detector
From: Wayne Berke
Files patched: regexec.c
A partial match on a subpattern could fool the infinite regress detector
into thinking progress had been made.
The previous workaround prevented another bug (NETaa14529) from being fixed,
so I've backed it out. I'll need to think more about how to detect failure
to progress. I'm still hopeful it's not equivalent to the halting problem.
NETaa14535: patches from Gurusamy Sarathy
From: Gurusamy Sarathy
Files patched: op.c pp.c pp_hot.c regexec.c sv.c toke.c
Applied most recent suggested patches.
NETaa14537: select() can return too soon
From: Matt Kimball
Also: Andreas Gustafsson
Files patched: pp_sys.c
NETaa14538: method calls were treated like do {} under loop modifiers
From: Ilya Zakharevich
Files patched: perly.c perly.y
Needed to take the OPf_SPECIAL flag off of entersubs from method reductions.
(It was probably a cut-and-paste error from long ago.)
NETaa14540: foreach (@array) no longer does extra stack copy
From: darrinm@lmc.com
Files patched: Todo op.c pp_ctl.c pp_hot.c
Fixed by doing the foreach(@array) optimization, so it iterates
directly through the array, and can detect the implicit shift from
referencing <>.
NETaa14541: new version of perlbug
From: Kenneth Albanowski
Files patched: README pod/perl.pod utils/perlbug.PL
Brought it up to version 1.09.
NETaa14541: perlbug 1.11
Files patched: utils/perlbug.PL
(same)
NETaa14548: magic sets didn't check private OK bits
From: W. Bradley Rubenstein
Files patched: mg.c
The magic code was getting mixed up between private and public POK bits.
NETaa14550: made ~ magic magical
From: Tim Bunce
Files patched: sv.c
Applied suggested patch.
NETaa14551: humongous header causes infinite loop in format
From: Grace Lee
Files patched: pp_sys.c
Needed to check for page exhaustion after doing top-of-form.
NETaa14558: attempt to call undefined top format core dumped
From: Hallvard B Furuseth
Files patched: pod/perldiag.pod pp_sys.c
Now issues an error on attempts to call a non-existent top format.
NETaa14561: Gurusamy Sarathy's G_KEEPERR patch
From: Andreas Koenig
Also: Gurusamy Sarathy
Also: Tim Bunce
Files patched: cop.h interp.sym perl.c perl.h pp_ctl.c pp_sys.c sv.c toke.c
Applied latest patch.
NETaa14581: shouldn't execute BEGIN when there are compilation errors
From: Rickard Westman
Files patched: op.c
Perl should not try to execute BEGIN and END blocks if there's been a
compilation error.
NETaa14582: got SEGV sorting sparse array
From: Rick Pluta
Files patched: pp_ctl.c
Now weeds out undefined values much like Perl 4 did.
Now sorts undefined values to the front.
NETaa14582: sort was letting unsortable values through to comparison routine
Files patched: pp_ctl.c
(same)
NETaa14585: globs in pad space weren't properly cleaned up
From: Gurusamy Sarathy
Files patched: op.c pp.c pp_hot.c sv.c
Applied suggested patch.
NETaa14614: now does dbmopen with perl_eval_sv()
From: The Man
Files patched: perl.c pp_sys.c proto.h
dbmopen now invokes perl_eval_sv(), which should handle error conditions
better.
NETaa14618: exists doesn't work in GDBM_File
From: Andrew Wilcox
Files patched: ext/GDBM_File/GDBM_File.xs
Applied suggested patch.
NETaa14619: tied()
From: Larry Wall
Also: Paul Marquess
Files patched: embed.h global.sym keywords.h keywords.pl opcode.h opcode.pl pp_sys.c toke.c
Applied suggested patch.
NETaa14636: Jumbo Dynaloader patch
From: Tim Bunce
Files patched: ext/DynaLoader/DynaLoader.pm ext/DynaLoader/dl_dld.xs ext/DynaLoader/dl_dlopen.xs ext/DynaLoader/dl_hpux.xs ext/DynaLoader/dl_next.xs ext/DynaLoader/dl_vms.xs ext/DynaLoader/dlutils.c
Applied suggested patches.
NETaa14637: checkcomma routine was stupid about bareword sub calls
From: Tim Bunce <Tim.Bunce@ig.co.uk>
Files patched: toke.c
The checkcomma routine was stupid about bareword sub calls.
NETaa14639: (?i) didn't reset on runtime patterns
From: Mark A. Scheel
Files patched: op.h pp_ctl.c toke.c
It didn't distinguish between permanent flags outside the pattern and
temporary flags within the pattern.
NETaa14649: selecting anonymous globs dumps core
From: Chip Salzenberg
Files patched: cop.h doio.c embed.h global.sym perl.c pp_sys.c proto.h
Applied suggested patch, but reversed the increment and decrement to avoid
decrementing and freeing what we're going to increment.
NETaa14655: $? returned negative value on AIX
From: Kim Frutiger
Also: Stephen D. Lee
Files patched: pp_sys.c
Applied suggested patch.
NETaa14668: {2,} could match once
From: Hugo van der Sanden
Files patched: regexec.c
When an internal pattern failed a conjecture, it didn't back off on the
number of times it thought it had matched.
NETaa14673: open $undefined dumped core
From: Samuli K{rkk{inen
Files patched: pp_sys.c
pp_open() didn't check its argument for globness.
NETaa14683: stringifies were running pad out of space
From: Robin Barker
Files patched: op.h toke.c
Increased PADOFFSET to a U32, and made lexer not put double-quoted strings
inside OP_STRINGIFY unless they really needed it.
NETaa14689: shouldn't have . in @INC when tainting
From: William R. Somsky
Files patched: perl.c
Now does not put . into @INC when tainting. It may still be added with a
use lib ".";
or, to put it at the end,
BEGIN { push(@INC, ".") }
but this is not recommended unless a chdir to a known location has been done
first.
NETaa14690: values inside tainted SVs were ignored
From: "James M. Stern"
Files patched: pp.c pp_ctl.c
It was assuming that a tainted value was a string.
NETaa14692: format name required qualification under use strict
From: Tom Christiansen
Files patched: gv.c
Now treats format names the same as subroutine names.
NETaa14695: added simple regexp caching
From: John Rowe
Files patched: pp_ctl.c
Applied suggested patch.
NETaa14697: regexp comments were sometimes wrongly treated as literal text
From: Tom Christiansen
Files patched: regcomp.c
The literal-character grabber didn't know about extended comments.
N.B. '#' is treated as a comment character whenever the /x option is
used now, so you can't include '#' as a simple literal in /x regexps.
(By the way, Tom, the boxed form of quoting in the previous enclosure is
exceeding antisocial when you want to extract the code from it.)
NETaa14704: closure got wrong outer scope if outer sub was predeclared
From: Marc Paquette
Files patched: op.c
The outer scope of the anonymous sub was set to the stub rather than to
the actual subroutine. I kludged it by making the outer scope of the
stub be the actual subroutine, if anything is depending on the stub.
NETaa14705: $foo .= $foo did free memory read
From: Gerd Knops
Files patched: sv.c
Now modifies address to copy if it was reallocated.
NETaa14709: Chip's FileHandle stuff
From: Larry Wall
Also: Chip Salzenberg
Files patched: MANIFEST ext/FileHandle/FileHandle.pm ext/FileHandle/FileHandle.xs ext/FileHandle/Makefile.PL ext/POSIX/POSIX.pm ext/POSIX/POSIX.pod ext/POSIX/POSIX.xs lib/FileCache.pm lib/Symbol.pm t/lib/filehand.t t/lib/posix.t
Applied suggested patches.
NETaa14711: added (&) and (*) prototypes for blocks and symbols
From: Kenneth Albanowski
Files patched: Makefile.SH op.c perly.c perly.h perly.y toke.c
& now means that it must have an anonymous sub as that argument. If
it's the first argument, the sub may be specified as a block in the
indirect object slot, much like grep or sort, which have prototypes of (&@).
Also added * so you can do things like
sub myopen (*;$);
myopen(FOO, $filename);
NETaa14713: setuid FROM root now defaults to not do tainting
From: Tony Camas
Files patched: mg.c perl.c pp_hot.c
Applied suggested patch.
NETaa14714: duplicate magics could be added to an SV
From: Yary Hluchan
Files patched: sv.c sv.c
The sv_magic() routine didn't properly check to see if it already had a
magic of that type. Ordinarily it would have, but it was called during
mg_get(), which forces the magic flags off temporarily.
NETaa14721: sub defined during erroneous do-FILE caused core dump
From: David Campbell
Files patched: op.c
Fixed the seg fault. I couldn't reproduce the return problem.
NETaa14734: ref should never return undef
From: Dale Amon
Files patched: pp.c t/op/overload.t
Now returns null string.
NETaa14751: slice of undefs now returns null list
From: Tim Bunce
Files patched: pp.c pp_hot.c
Null list clobberation is now done in lslice, not aassign.
NETaa14789: select coredumped on Linux
From: Ulrich Kunitz
Files patched: pp_sys.c
Applied suggested patches, more or less.
NETaa14789: straightened out ins and out of duping
Files patched: lib/IPC/Open3.pm
(same)
NETaa14791: implemented internal SUPER class
From: Nick Ing-Simmons
Also: Dean Roehrich
Files patched: gv.c
Applied suggested patch.
NETaa14845: s/// didn't handle offset strings
From: Ken MacLeod
Files patched: pp_ctl.c
Needed a call to SvOOK_off(targ) in pp_substcont().
NETaa14851: Use of << to mean <<"" is deprecated
From: Larry Wall
Files patched: toke.c
NETaa14865: added HINT_BLOCK_SCOPE to "elsif"
From: Jim Avera
Files patched: perly.y
Needed to set HINT_BLOCK_SCOPE on "elsif" to prevent the do block from
being optimized away, which caused the statement transition in elsif
to reset the stack too far back.
NETaa14876: couldn't delete localized GV safely
From: John Hughes
Files patched: pp.c scope.c
The reference count of the "borrowed" GV needed to be incremented while
there was a reference to it in the savestack.
NETaa14887: couldn't negate magical scalars
From: ian
Also: Gurusamy Sarathy
Files patched: pp.c
Applied suggested patch, more or less. (It's not necessary to test both
SvNIOK and SvNIOKp, since the private bits are always set if the public
bits are set.)
NETaa14893: /m modifier was sticky
From: Jim Avera