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[perl #74764] -E 'given( goto f ) { f: }' => crash
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From:
Frank Wiegand
Date:
April 29, 2010 06:03
Subject:
[perl #74764] -E 'given( goto f ) { f: }' => crash
Message ID:
rt-3.6.HEAD-27388-1272530215-1402.74764-75-0@perl.org
# New Ticket Created by Frank Wiegand
# Please include the string: [perl #74764]
# in the subject line of all future correspondence about this issue.
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=74764 >
This is a bug report for perl from frank.wiegand@gmail.com,
generated with the help of perlbug 1.39 running under perl 5.12.0.
-----------------------------------------------------------------
The following code crashes perl:
% perl5.12.0 -E 'given ( goto f ) { f: }'
Use of "goto" to jump into a construct is deprecated at -e line 1.
perl5.12.0: pp_ctl.c:4005: Perl_pp_leavegiven: Assertion `((cx)->cx_u.cx_subst.sbu_type & 0xf) == 3' failed.
zsh: abort /opt/perl/perl-5.12.0-RC3/bin/perl5.12.0 -E 'given ( goto f ) { f: }
Yes, I see the deprecated warning.
Yes, no one would do this.
But perl should not crash, too.
Thanks, Frank
-----------------------------------------------------------------
---
Flags:
category=core
severity=low
---
Site configuration information for perl 5.12.0:
Configured by fw at Sat Apr 3 09:18:00 CEST 2010.
Summary of my perl5 (revision 5 version 12 subversion 0) configuration:
Platform:
osname=linux, osvers=2.6.32-trunk-amd64, archname=x86_64-linux
uname='linux hal2 2.6.32-trunk-amd64 #1 smp sun jan 10 22:40:40 utc 2010 x86_64 gnulinux '
config_args='-de -Dusedevel -DDEBUGGING=both -Doptimize=-g -Dcc=ccache gcc -Dld=gcc -Dprefix=/opt/perl/perl-5.12.0-RC3/ -Dmad'
hint=recommended, useposix=true, d_sigaction=define
useithreads=undef, usemultiplicity=undef
useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
use64bitint=define, use64bitall=define, uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='ccache gcc', ccflags ='-DDEBUGGING -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-g',
cppflags='-DDEBUGGING -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include'
ccversion='', gccversion='4.4.3 20100108 (prerelease)', 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='gcc', ldflags =' -fstack-protector -L/usr/local/lib'
libpth=/usr/local/lib /lib /usr/lib /lib64 /usr/lib64
libs=-lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lc -lgdbm_compat
perllibs=-lnsl -ldl -lm -lcrypt -lutil -lc
libc=/lib/libc-2.10.2.so, so=so, useshrplib=false, libperl=libperl.a
gnulibc_version='2.10.2'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
cccdlflags='-fPIC', lddlflags='-shared -g -L/usr/local/lib -fstack-protector'
Locally applied patches:
RC3
---
@INC for perl 5.12.0:
/opt/perl/perl-5.12.0-RC3/lib/site_perl/5.12.0/x86_64-linux
/opt/perl/perl-5.12.0-RC3/lib/site_perl/5.12.0
/opt/perl/perl-5.12.0-RC3/lib/5.12.0/x86_64-linux
/opt/perl/perl-5.12.0-RC3/lib/5.12.0
.
---
Environment for perl 5.12.0:
HOME=/home/fw
LANG=de_DE.UTF-8
LANGUAGE=
LD_LIBRARY_PATH (unset)
LOGDIR (unset)
PATH=/sbin:/usr/sbin:/home/fw/bin:/home/fw/bin:/usr/local/bin:/usr/bin:/bin:/usr/games
PERL_AUTOINSTALL=--defaultdeps
PERL_BADLANG (unset)
PERL_EXTUTILS_AUTOINSTALL=--defaultdeps
PERL_MM_USE_DEFAULT=1
SHELL=/bin/zsh
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[perl #74764] -E 'given( goto f ) { f: }' => crash
by Frank Wiegand