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[perl #118001] perl single step doesn't write steps to stderr
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From:
Linda Walsh
Date:
May 15, 2013 08:00
Subject:
[perl #118001] perl single step doesn't write steps to stderr
Message ID:
rt-3.6.HEAD-2650-1368604782-653.118001-75-0@perl.org
# New Ticket Created by Linda Walsh
# Please include the string: [perl #118001]
# in the subject line of all future correspondence about this issue.
# <URL: https://rt.perl.org:443/rt3/Ticket/Display.html?id=118001 >
This is a bug report for perl from perl-diddler@tlinx.org,
generated with the help of perlbug 1.39 running under perl 5.16.2.
-----------------------------------------------------------------
[Please describe your issue here]
I was trying to follow the manpage advice and use
the following to single step through my code:
PERLDB_OPTS="NonStop=1 AutoTrace=1 frame=2" perl -dS crawl.pl |& more
Much to my surprise, the output was impossible to redirect.
Um... pardon me, but exactly how is someone supposed to
use this feature when it doesn't behave like any normal
trace feature (cf. bash tracing, or strace, or ltrace).
Please send trace output to stderr as per normal
trace operations in other programs.
Otherwise, it's ridiculous to try to use.
[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
category=core
severity=high
---
This perlbug was built using Perl 5.16.2 - Fri Feb 15 01:17:37 UTC 2013
It is being executed now by Perl 5.16.2 - Fri Feb 15 01:12:05 UTC 2013.
Site configuration information for perl 5.16.2:
Configured by abuild at Fri Feb 15 01:12:05 UTC 2013.
Summary of my perl5 (revision 5 version 16 subversion 2) configuration:
Platform:
osname=linux, osvers=3.4.6-2.10-default, archname=x86_64-linux-thread-multi
uname='linux build34 3.4.6-2.10-default #1 smp thu jul 26 09:36:26 utc 2012 (641c197) x86_64 x86_64 x86_64 gnulinux '
config_args='-ds -e -Dprefix=/usr -Dvendorprefix=/usr -Dinstallusrbinperl -Dusethreads -Di_db -Di_dbm -Di_ndbm -Di_gdbm -Dd_dbm_open -Duseshrplib=true -Doptimize=-fmessage-length=0 -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-unwind-tables -g -Wall -pipe -Accflags=-DPERL_USE_SAFE_PUTENV -Dotherlibdirs=/usr/lib/perl5/site_perl'
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 -DPERL_USE_SAFE_PUTENV -fno-strict-aliasing -pipe -fstack-protector -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-fmessage-length=0 -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-unwind-tables -g -Wall -pipe',
cppflags='-D_REENTRANT -D_GNU_SOURCE -DPERL_USE_SAFE_PUTENV -fno-strict-aliasing -pipe -fstack-protector'
ccversion='', gccversion='4.7.2 20130108 [gcc-4_7-branch revision 195012]', 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 =' -L/usr/local/lib64 -fstack-protector'
libpth=/lib64 /usr/lib64 /usr/local/lib64
libs=-lm -ldl -lcrypt -lpthread
perllibs=-lm -ldl -lcrypt -lpthread
libc=/lib64/libc-2.17.so, so=so, useshrplib=true, libperl=libperl.so
gnulibc_version='2.17'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E -Wl,-rpath,/usr/lib/perl5/5.16.2/x86_64-linux-thread-multi/CORE'
cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib64 -fstack-protector'
Locally applied patches:
---
@INC for perl 5.16.2:
/home/law/bin/lib
/usr/lib/perl5/site_perl/5.16.2/x86_64-linux-thread-multi
/usr/lib/perl5/site_perl/5.16.2
/usr/lib/perl5/vendor_perl/5.16.2/x86_64-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.16.2
/usr/lib/perl5/5.16.2/x86_64-linux-thread-multi
/usr/lib/perl5/5.16.2
/usr/lib/perl5/site_perl/5.16.2/x86_64-linux-thread-multi
/usr/lib/perl5/site_perl/5.16.2
/usr/lib/perl5/site_perl
.
---
Environment for perl 5.16.2:
HOME=/home/law
LANG=en_US.UTF-8
LANGUAGE (unset)
LC_COLLATE=C
LC_CTYPE=en_US.UTF-8
LD_LIBRARY_PATH (unset)
LOGDIR (unset)
PATH=.:/home/law/bin/lib:/sbin:/usr/local/sbin:/home/law/bin:/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/X11R6/bin:/usr/games:/opt/kde3/bin:/usr/lib/mit/bin:/usr/lib/mit/sbin:/usr/lib/qt3/bin:/opt/dell/srvadmin/bin:/usr/sbin:/etc/local/func_lib:/home/law/lib
PERL5OPT=-CSA -I/home/law/bin/lib
PERL_BADLANG (unset)
SHELL=/bin/bash
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[perl #118001] perl single step doesn't write steps to stderr
by Linda Walsh