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Use of uninitialized value in bitwise and B::Deparse #10061

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p5pRT opened this issue Jan 6, 2010 · 4 comments
Closed

Use of uninitialized value in bitwise and B::Deparse #10061

p5pRT opened this issue Jan 6, 2010 · 4 comments
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distro-Linux type-library

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@p5pRT
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p5pRT commented Jan 6, 2010

Migrated from rt.perl.org#71870 (status was 'resolved')

Searchable as RT71870$
@p5pRT
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p5pRT commented Jan 6, 2010

From gam3@ny.gam3.net

Created by gam3@gam3.net

./Build testcover issues lots of warnings about​:

  Use of uninitialized value in bitwise and (&) at /usr/lib/perl/5.10/B/Deparse.pm line 4273.

= TEST CASE =

# perl -MO=Deparse -we '$r = qr/foo/; my @​a = split($r, $_)'

prints​:
  BEGIN { $^W = 1; }
  $r = qr/foo/;
  Use of uninitialized value in bitwise and (&) at /usr/lib/perl/5.10/B/Deparse.pm line 4273.
  my(@​a) = split(/$r/, $_, 0);
  -e syntax OK

Perl Info 

Flags:
    category=library
    severity=low
    module=B::Deparse

Site configuration information for perl 5.10.1:

Configured by Debian Project at Sat Nov 21 19:18:01 UTC 2009.

Summary of my perl5 (revision 5 version 10 subversion 1) configuration:
   
  Platform:
    osname=linux, osvers=2.6.31-1-amd64, archname=x86_64-linux-gnu-thread-multi
    uname='linux madeleine 2.6.31-1-amd64 #1 smp mon nov 16 04:44:38 utc 2009 x86_64 gnulinux '
    config_args='-Dusethreads -Duselargefiles -Dccflags=-DDEBIAN -Dcccdlflags=-fPIC -Darchname=x86_64-linux-gnu -Dprefix=/usr -Dprivlib=/usr/share/perl/5.10 -Darchlib=/usr/lib/perl/5.10 -Dvendorprefix=/usr -Dvendorlib=/usr/share/perl5 -Dvendorarch=/usr/lib/perl5 -Dsiteprefix=/usr/local -Dsitelib=/usr/local/share/perl/5.10.1 -Dsitearch=/usr/local/lib/perl/5.10.1 -Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3 -Dsiteman1dir=/usr/local/man/man1 -Dsiteman3dir=/usr/local/man/man3 -Dman1ext=1 -Dman3ext=3perl -Dpager=/usr/bin/sensible-pager -Uafs -Ud_csh -Ud_ualarm -Uusesfio -Uusenm -DDEBUGGING=-g -Doptimize=-O2 -Duseshrplib -Dlibperl=libperl.so.5.10.1 -Dd_dosuid -des'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=define, usemultiplicity=define
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
    use64bitint=define, use64bitall=define, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-O2 -g',
    cppflags='-D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include'
    ccversion='', gccversion='4.3.4', gccosandvers=''
    intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
    ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -fstack-protector -L/usr/local/lib'
    libpth=/usr/local/lib /lib /usr/lib /lib64 /usr/lib64
    libs=-lgdbm -lgdbm_compat -ldb -ldl -lm -lpthread -lc -lcrypt
    perllibs=-ldl -lm -lpthread -lc -lcrypt
    libc=/lib/libc-2.10.1.so, so=so, useshrplib=true, libperl=libperl.so.5.10.1
    gnulibc_version='2.10.1'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
    cccdlflags='-fPIC', lddlflags='-shared -O2 -g -L/usr/local/lib -fstack-protector'

Locally applied patches:
    


@INC for perl 5.10.1:
    /etc/perl
    /usr/local/lib/perl/5.10.1
    /usr/local/share/perl/5.10.1
    /usr/lib/perl5
    /usr/share/perl5
    /usr/lib/perl/5.10
    /usr/share/perl/5.10
    /usr/local/lib/site_perl
    .


Environment for perl 5.10.1:
    HOME=/home/gam3
    LANG=en_US.UTF-8
    LANGUAGE (unset)
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)
    PATH=/home/gam3/bin:/sbin/:/usr/sbin/:/home/gam3/bin:/usr/local/bin:/usr/bin:/bin:/usr/games:/usr/kerberos/bin:/usr/kerberos/sbin:/usr/local/Acrobat5/bin/:/opt/perl/bin:/usr/local/bin:/usr/local/sbin
    PERL_BADLANG (unset)
    SHELL=/bin/bash

@p5pRT
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p5pRT commented Jan 6, 2010

From perl@profvince.com

# perl -MO=Deparse -we '$r = qr/foo/; my @​a = split($r, $_)'

prints​:
BEGIN { $^W = 1; }
$r = qr/foo/;
Use of uninitialized value in bitwise and (&) at /usr/lib/perl/5.10/B/Deparse.pm line 4273.
my(@​a) = split(/$r/, $_, 0);
-e syntax OK

Thanks for your report. This should have been fixed with commit
06fc686.

Vincent.

@p5pRT
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p5pRT commented Jan 6, 2010

The RT System itself - Status changed from 'new' to 'open'

@p5pRT
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p5pRT commented Jan 6, 2010

bitcard@profvince.com - Status changed from 'open' to 'resolved'

@p5pRT p5pRT closed this as completed Jan 6, 2010
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