open and -e fail w/largefiles (>2G) on solaris 2.6 x86

[p5pRT]

Migrated from rt.perl.org#981 (status was 'resolved')

Searchable as RT981$

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From patrick@dante.alexa.com

Perl cannot open files greater than 2G in size on Solaris 2.6 x86 (in other words, Perl is not largefile compliant). Specifically​:

1) open FH, "largefile" fails to open a file

2) -e/-f/-s fails to detect the file (reports FALSE when should report TRUE)

in the examples below, the files "large" and "small" are​:

ls -l
-rw-r--r-- 1 patrick staff 2150684158 Jun 24 17​:42 large
-rw-r--r-- 1 patrick staff 16131861 Jul 7 15​:13 small

open summary and code sample​:

perl
open FH, "large" or die "$!";

Value too large for defined data type at - line 1.

-e/-f/-s summary and code examples​:

The file tests (-f, -e, -s, etc) are not large file compliant and return FALSE when given 2G+ files. These are the operators in Perl to test for existance (-e), non-zero size (-s), etc.

Here's an example​:

Let's test for the existance of a 2G+ file using the "-e" command​:

First, with large (a >2G file)

perl -e 'if (-e qq#large#) {print qq#IT EXISTS\n#} else {print qq#IT DOES NOT EXIST\n#}'
IT DOES NOT EXIST

And now, on small (a 16M file)​:

perl -e 'if (-e qq#small#) {print qq#IT EXISTS\n#} else {print qq#IT DOES NOT EXIST\n#}'
IT EXISTS

Perl Info

Site configuration information for perl 5.00502:

Configured by root at Sat Nov  7 01:22:21 PST 1998.

Summary of my perl5 (5.0 patchlevel 5 subversion 2) configuration:
  Platform:
    osname=solaris, osvers=2.6, archname=i86pc-solaris
    uname='sunos liza.alexa.com 5.6 generic_105182-05 i86pc i386 i86pc '
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef useperlio=undef d_sfio=undef
  Compiler:
    cc='gcc', optimize='-O', gccversion=2.8.1
    cppflags='-I/usr/local/include'
    ccflags ='-I/usr/local/include'
    stdchar='unsigned char', d_stdstdio=define, usevfork=false
    intsize=4, longsize=4, ptrsize=4, doublesize=8
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    alignbytes=4, usemymalloc=y, prototype=define
  Linker and Libraries:
    ld='gcc', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /shlib /lib /usr/lib /usr/ccs/lib
    libs=-lsocket -lnsl -ldl -lm -lc -lcrypt
    libc=, so=so, useshrplib=false, libperl=libperl.a
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags=' '
    cccdlflags='-fPIC', lddlflags='-G -L/usr/local/lib'

Locally applied patches:
    


@INC for perl 5.00502:
    /usr/local/lib/perl5/5.00502/i86pc-solaris
    /usr/local/lib/perl5/5.00502
    /usr/local/lib/perl5/site_perl/5.005/i86pc-solaris
    /usr/local/lib/perl5/site_perl/5.005
    .


Environment for perl 5.00502:
    HOME=/home/patrick
    LANG (unset)
    LD_LIBRARY_PATH=/usr/openwin/lib
    LOGDIR (unset)
    PATH=/home/patrick/bin/SunOS_56_i386:/home/patrick/alexa/platform/SunOS_56_i386/bin:/usr/local/bin:/usr/bin:/usr/dt/bin:/bin:/usr/sbin:/usr/ccs/bin:/usr/openwin/bin:/usr/ucb:/opt/SUNWspro/bin:/home/patrick/bin:/export/data/dad-archive/bin:.:/home/patrick/alexa/bin
    PERL_BADLANG (unset)
    SHELL=/usr/local/bin/tcsh

[p5pRT]

From @jhi

Patrick Tufts writes​:

This is a bug report for perl from patrick@​alexa.com,
generated with the help of perlbug 1.26 running under perl 5.00502.

-----------------------------------------------------------------
[Please enter your report here]

Perl cannot open files greater than 2G in size on Solaris 2.6 x86 (in other words, Perl is not largefile compliant). Specifically​:

1) open FH, "largefile" fails to open a file

2) -e/-f/-s fails to detect the file (reports FALSE when should report TRUE)

Perl 5.6 should be aware of large files but only iff separately Configured
with -Duse64bits.

--
$jhi++; # http​://www.iki.fi/jhi/
  # There is this special biologist word we use for 'stable'.
  # It is 'dead'. -- Jack Cohen

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