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[ID 20020209.009] core dump in Perl_regexec_flags
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From:
Slaven Rezic
Date:
February 9, 2002 14:51
Subject:
[ID 20020209.009] core dump in Perl_regexec_flags
Message ID:
200202092247.g19MlBk18468@vran.herceg.de
This is a bug report for perl from eserte@vran.herceg.de,
generated with the help of perlbug 1.33 running under perl v5.7.2.
-----------------------------------------------------------------
I'm not sure whether this is a Perl/Tk or perl problem:
In Perl/Tk there is a call to pregexec with a NULL as 6th argument:
return pregexec(re,string,string+strlen(string),start,0,NULL,1);
(this is in file tkGlue.c).
In perl's Perl_regexec_flags function, a core will be dumped at line
1427:
bool do_utf8 = DO_UTF8(sv);
The problem is fixed if I change the line to:
bool do_utf8 = sv && DO_UTF8(sv);
Regards,
Slaven
-----------------------------------------------------------------
---
Flags:
category=core
severity=medium
---
Site configuration information for perl v5.7.2:
Configured by eserte at Sat Feb 9 22:33:02 CET 2002.
Summary of my perl5 (revision 5.0 version 7 subversion 2 patch 14574) configuration:
Platform:
osname=freebsd, osvers=4.3-stable, archname=i386-freebsd-64int
uname='freebsd vran.herceg.de 4.3-stable freebsd 4.3-stable #6: mon jul 9 11:49:47 cest 2001 root@vran.herceg.de:vranhomesrcfreebsd-4srcsyscompilevran i386 '
config_args='-Doptimize=-g -DPERL_DEBUGGING_MSTATS -Dusemymalloc=y -Dprefix=/usr/perl5.7.2d -D usedevel=define -de -D hintfile=myfreebsd'
hint=recommended, useposix=true, d_sigaction=define
usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
use64bitint=define use64bitall=undef uselongdouble=undef
usemymalloc=y, bincompat5005=define
Compiler:
cc='cc', ccflags ='-DHAS_FPSETMASK -DHAS_FLOATINGPOINT_H -DDEBUGGING -fno-strict-aliasing -I/usr/local/include',
optimize='-g -DPERL_DEBUGGING_MSTATS',
cppflags='-DHAS_FPSETMASK -DHAS_FLOATINGPOINT_H -DDEBUGGING -fno-strict-aliasing -I/usr/local/include'
ccversion='', gccversion='2.95.3 [FreeBSD] 20010315 (release)', gccosandvers=''
intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=12345678
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
ivtype='long long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
alignbytes=4, prototype=define
Linker and Libraries:
ld='cc', ldflags ='-Wl,-E -L/usr/local/lib'
libpth=/usr/lib /usr/local/lib
libs=-lbind -lgdbm -ldb -lm -lc -lcrypt -lutil
perllibs=-lbind -lm -lc -lcrypt -lutil
libc=, so=so, useshrplib=false, libperl=libperl.a
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags=' '
cccdlflags='-DPIC -fpic', lddlflags='-shared -L/usr/local/lib'
Locally applied patches:
DEVEL14574
---
@INC for perl v5.7.2:
lib
/usr/perl5.7.2d/lib/5.7.2/i386-freebsd-64int
/usr/perl5.7.2d/lib/5.7.2
/usr/perl5.7.2d/lib/site_perl/5.7.2/i386-freebsd-64int
/usr/perl5.7.2d/lib/site_perl/5.7.2
/usr/perl5.7.2d/lib/site_perl
.
---
Environment for perl v5.7.2:
HOME=/home/e/eserte
LANG (unset)
LANGUAGE (unset)
LC_ALL=de_DE.ISO_8859-1
LD_LIBRARY_PATH (unset)
LOGDIR (unset)
PATH=/usr/X11R6/bin:/usr/X11/bin:/usr/local/bin:/usr/bin:/bin:/usr/gnu/bin:/usr/TeX/bin:/usr/local/sbin:/usr/sbin:/sbin:/usr/local/pilot/bin:/home/e/eserte/bin/FreeBSD:/home/e/eserte/bin/sh:/home/e/eserte/bin:/usr/X386/bin:/usr/games:/home/e/eserte/devel
PERL_BADLANG (unset)
SHELL=/usr/local/bin/tcsh
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[ID 20020209.009] core dump in Perl_regexec_flags
by Slaven Rezic