Small perl for embedded devices?

[knave]

Some time has passed since this question was last asked. Where does one go for a small-footprint perl distribution? I have found very little. Can it be done in under 500KB?

[rob_au]

You may want to have a look at microperl which was introduced as a new feature with Perl 5.7.0. This build incorporates the bootstrap feature of Perl which behaves similar to any other build of Perl, but does not incorporate Dynaloader XS module allowing the execution of C-based Perl modules or system specific functions such as crypt and readdir.

This build of Perl is particularly good for hacking and porting, relying upon only 71 files from the Perl source - On a test build on a i686 Linux machine however, the build size of the microperl binary using gcc 2.95.4 with libc6 (2.2.5) and no source hacking was approximately 968Kb.

If you are interested, there was an article on microperl written by Simon Cozens in Issue 19 of The Perl Journal here - This article has also been incorporated in the O'Reilly published "Computer Science and Perl Programming".

 

Update - In Re: bootstrapping with microperl, I describe the compression of a stripped microperl binary which had been built with the -O3 optimisation flag with UPX - The resultant binary was 308Kb in size.

kathmandu:/home/build/perl-5.8.0# upx -9 microperl -omicroperl.upx
                     Ultimate Packer for eXecutables
            Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001
UPX 1.20         Markus F.X.J. Oberhumer & Laszlo Molnar        May 23
+rd 2001

        File size         Ratio      Format      Name
   --------------------   ------   -----------   -----------
    721956 ->    315924   43.75%    linux/386    microperl.upx

Packed 1 file.

 

perl -le 'print+unpack("N",pack("B32","00000000000000000000001000011001"))'

[gjb]

You could have a look at TinyPerl, it's the smallest I've seen so far, but it's about 116K larger than you require (I'm not sure whether this is file size or runtine memory, but I guess the former which is probably not what you have in mind).

Just my 2 cents, -gjb-

[sauoq]

I've got perl on my Zaurus. The ipk distribution is about a meg (compressed.) The binary is about 800k or so.

-sauoq
"My two cents aren't worth a dime.";

[strredwolf]

I can't say that the Perl that is for the Zaurus is worth the 1 meg compressed. However, a fully featured (w/CGI) Perl I created by modifying Debian-ARM archives and put into a cramdisk comes out to be about 3 megs on disk.

--
$Stalag99{"URL"}="http://stalag99.keenspace.com";

[zentara]

I just made a microperl from perl5.8 to test. It is done with make -f Makefile.micro. It compiled to 908k stripped. However when I tested it on a script , it gave an error "Unsupported function opendir". So I guess it is pretty limited.