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[perl #132764] Devel::Peek: Indentation gap when dumping MG object
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From:
KES
Date:
January 25, 2018 11:16
Subject:
[perl #132764] Devel::Peek: Indentation gap when dumping MG object
Message ID:
rt-4.0.24-4781-1516879000-1560.132764-75-0@perl.org
# New Ticket Created by KES
# Please include the string: [perl #132764]
# in the subject line of all future correspondence about this issue.
# <URL: https://rt.perl.org/Ticket/Display.html?id=132764 >
Message-Id: <5.24.0_11686_1516878441@work>
To: perlbug@perl.org
Reply-To: kes-kes@yandex.ru
Cc: kes-kes@yandex.ru
From: kes-kes@yandex.ru
Subject: Devel::Peek: Indentation gap when dumping MG object
This is a bug report for perl from kes-kes@yandex.ru,
generated with the help of perlbug 1.40 running under perl 5.24.0.
-----------------------------------------------------------------
[Please describe your issue here]
Depending on the PL_dumpindent the MG_OBJ details are dumped with indentation gap:
Look at output:
PL_dumpindent = 1;
SV = PVMG(0x1d74a70) at 0x1bba790
REFCNT = 1
FLAGS = (GMG,SMG,RMG)
IV = 0
NV = 0
PV = 0
MAGIC = 0x1bb3bd0
MG_VIRTUAL = &PL_vtbl_packelem
MG_TYPE = PERL_MAGIC_tiedscalar(q)
MG_FLAGS = 0x02
REFCOUNTED
MG_OBJ = 0x1baffe8
SV = IV(0x1baffd8) at 0x1baffe8
^^
REFCNT = 1
FLAGS = (ROK)
RV = 0x1c778b8
SV = PVHV(0x1ba1c60) at 0x1c778b8
^^
...
PL_dumpindent = 2;
SV = PVMG(0x21aa9d0) at 0x1ff0790
REFCNT = 1
FLAGS = (GMG,SMG,RMG)
IV = 0
NV = 0
PV = 0
MAGIC = 0x1fe9b90
MG_VIRTUAL = &PL_vtbl_packelem
MG_TYPE = PERL_MAGIC_tiedscalar(q)
MG_FLAGS = 0x02
REFCOUNTED
MG_OBJ = 0x1fe5fe8
SV = IV(0x1fe5fd8) at 0x1fe5fe8
^^
REFCNT = 1
FLAGS = (ROK)
RV = 0x21a90e8
SV = PVHV(0x1fd7c60) at 0x21a90e8
^^
...
PL_dumpindent = 3;
SV = PVMG(0x15999c0) at 0x13df790
REFCNT = 1
FLAGS = (GMG,SMG,RMG)
IV = 0
NV = 0
PV = 0
MAGIC = 0x13d8b90
MG_VIRTUAL = &PL_vtbl_packelem
MG_TYPE = PERL_MAGIC_tiedscalar(q)
MG_FLAGS = 0x02
REFCOUNTED
MG_OBJ = 0x13d4fe8
SV = IV(0x13d4fd8) at 0x13d4fe8
^^
REFCNT = 1
FLAGS = (ROK)
RV = 0x16c8098
SV = PVHV(0x13c6c60) at 0x16c8098
^^
So this is unclear where SV belons to
Is it belongs to MAGIC or MG_OBJ?
There is no any documentation about PL_dumpindent
[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
category=core
severity=low
---
Site configuration information for perl 5.24.0:
Configured by kes at Wed Oct 19 14:07:47 EEST 2016.
Summary of my perl5 (revision 5 version 24 subversion 0) configuration:
Platform:
osname=linux, osvers=4.4.0-43-generic, archname=x86_64-linux
uname='linux work 4.4.0-43-generic #63-ubuntu smp wed oct 12 13:48:03 utc 2016 x86_64 x86_64 x86_64 gnulinux '
config_args='-de -Dprefix=/home/kes/perl5/perlbrew/perls/perl-5.24.0 -Aeval:scriptdir=/home/kes/perl5/perlbrew/perls/perl-5.24.0/bin'
hint=recommended, useposix=true, d_sigaction=define
useithreads=undef, usemultiplicity=undef
use64bitint=define, use64bitall=define, uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='cc', ccflags ='-fwrapv -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-O2',
cppflags='-fwrapv -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include'
ccversion='', gccversion='5.4.0 20160609', gccosandvers=''
intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678, doublekind=3
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16, longdblkind=3
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-strong -L/usr/local/lib'
libpth=/usr/local/lib /usr/lib/gcc/x86_64-linux-gnu/5/include-fixed /usr/include/x86_64-linux-gnu /usr/lib /lib/x86_64-linux-gnu /lib/../lib /usr/lib/x86_64-linux-gnu /usr/lib/../lib /lib /lib64 /usr/lib64
libs=-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc
perllibs=-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc
libc=libc-2.23.so, so=so, useshrplib=false, libperl=libperl.a
gnulibc_version='2.23'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
cccdlflags='-fPIC', lddlflags='-shared -O2 -L/usr/local/lib -fstack-protector-strong'
Locally applied patches:
Devel::PatchPerl 1.38
---
@INC for perl 5.24.0:
/home/kes/perl5/perlbrew/perls/perl-5.24.0/lib/site_perl/5.24.0/x86_64-linux
/home/kes/perl5/perlbrew/perls/perl-5.24.0/lib/site_perl/5.24.0
/home/kes/perl5/perlbrew/perls/perl-5.24.0/lib/5.24.0/x86_64-linux
/home/kes/perl5/perlbrew/perls/perl-5.24.0/lib/5.24.0
.
---
Environment for perl 5.24.0:
HOME=/home/kes
LANG=en_US.UTF-8
LANGUAGE=en
LC_ADDRESS=uk_UA.UTF-8
LC_IDENTIFICATION=uk_UA.UTF-8
LC_MEASUREMENT=uk_UA.UTF-8
LC_MESSAGES=en_US.UTF-8
LC_MONETARY=uk_UA.UTF-8
LC_NAME=uk_UA.UTF-8
LC_NUMERIC=uk_UA.UTF-8
LC_PAPER=uk_UA.UTF-8
LC_TELEPHONE=uk_UA.UTF-8
LD_LIBRARY_PATH (unset)
LOGDIR (unset)
PATH=/home/kes/perl5/perlbrew/bin:/home/kes/perl5/perlbrew/perls/perl-5.24.0/bin:/home/kes/bin:/home/kes/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games
PERLBREW=command perlbrew
PERLBREW_BASHRC_VERSION=0.78
PERLBREW_HOME=/home/kes/.perlbrew
PERLBREW_MANPATH=/home/kes/perl5/perlbrew/perls/perl-5.24.0/man
PERLBREW_PATH=/home/kes/perl5/perlbrew/bin:/home/kes/perl5/perlbrew/perls/perl-5.24.0/bin
PERLBREW_PERL=perl-5.24.0
PERLBREW_ROOT=/home/kes/perl5/perlbrew
PERLBREW_VERSION=0.78
PERL_BADLANG (unset)
SHELL=/bin/bash
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