X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=README.epoc;h=6c6256569d314ab3219b2b65e0782ad0bb832fed;hb=48cf72c85711f1650a96caf8dc746a297ee2bd06;hp=88d2e5ed83aa94f1b50af576c94b03ee9881bc2c;hpb=1d7c184104c076988718a01b77c8706aae05b092;p=p5sagit%2Fp5-mst-13.2.git diff --git a/README.epoc b/README.epoc index 88d2e5e..6c62565 100644 --- a/README.epoc +++ b/README.epoc @@ -1,42 +1,48 @@ -================================================= -Perl 5 README file for the EPOC operating system. -================================================== +If you read this file _as_is_, just ignore the funny characters you +see. It is written in the POD format (see pod/perlpod.pod) which is +specially designed to be readable as is. -Olaf Flebbe -http://www.linuxstart.com/~oflebbe/perl/perl.html -1999-11-01 +=head1 NAME + +README.epoc - Perl for EPOC -Introduction ------------- +=head1 SYNOPSIS + +Perl 5 README file for the EPOC operating system. -This is a port of Perl version 5.005_62 to EPOC. +=head1 INTRODUCTION -There are many features left out, because of restrictions of the POSIX -support in the SDK. +EPOC is a OS for palmtops and mobile phones. For more informations look at: +http://www.symbian.com/ +This is a port of perl to EPOC. It runs on the Psion Series 5, 5mx, +5mx Pro, Psion Revo and on the Ericson M128. I have no report about +the Psion Netbook or the S7. For information about this hardware +please refer to http://www.psion.com. -Installation/Usage ------------------- +=head1 INSTALLING PERL ON EPOC -You will need ~4MB free space in order to run perl. +You will need ~4MB free space in order to install and run perl. -Install perl.sis on the EPOC machine (most likely a PSION Series -5). If you do not know how to do that, you are on your own. You may -have to use a CF Card in order to work with perl. The perl debugger -uses more then 1.5 MB additional RAM. The heap is limited to 2 MB. +Install perl.sis on the EPOC machine (most likely a PSION Series 5, +5mx). If you do not know how to do that, you are on your own. -Perl itself and its standard library are using 1.7MB disk space. I -left out UTF support and modules which will not work with this -version. (For details look into epoc/createpkg.pl). +Perl itself and its standard library are using 2.5 MB disk space. I +left out unicode support modules and modules which will not work with +this version. (For details look into epoc/createpkg.pl). If you like +to use them, you are free to copy them from a current perl release. -Copy eshell.exe to the same location as perl. Start eshell.exe with a -double click. +Get ESHELL from symbian: +http://developer.epocworld.com/downloads/progs/Eshell.zip Now you can enter: perl -de 0 in order to run the perl debugger. If -you are leaving perl, you have to switch back manually to eshell.exe -(With Ctrl-System or the button in the upper right corner of the -System screen.) When perl is running, you will see a task with the -name STDOUT in the task list. +you are leaving perl, you get into the system screen. You have to +switch back manually to ESHELL. When perl is running, you will see +a task with the name STDOUT in the task list. + +=head1 USING PERL ON EPOC + +=head2 IO Redirection You can redirect the output with the UNIX bourne shell syntax (this is built into perl rather then eshell) For instance the following command @@ -45,89 +51,154 @@ stdout_file, the errors to stderr_file and input from stdin_file. perl test.pl >stdout_file stderr_file -Alternativly you can use 2>&1 in order to add the standard error output to -stdout. +Alternatively you can use 2>&1 in order to add the standard error +output to stdout. + +=head2 PATH Names + +ESHELL looks for executables in ?:/System/Programs. The SIS file +installs perl in this special folder directory. The default drive and +path are the same as folder the executable resides. The EPOC +filesystem is case-preserving, not case-sensitive. + +EPOC uses the ?: syntax for establishing a search order: First in C: (RAM), +then on D: (CF Card) and last in Z: (ROM). + +The perl @INC search path is now implemented with '?:'. Your perl +executable can now live on a different drive than the perl library or +even your scripts. + +ESHELL paths have to be written with backslashes '\', file arguments +to perl with slashes '/'. Remember that I/O redirection is done +internally in perl, so please use slashes for redirects. + +perl.exe C:/test.pl >C:/output.txt + +You can automatically search for file on all EPOC drives with a ? as +the driver letter. For instance ?:\a.txt searches for C:\a.txt, +D:\b.txt (and Z:\a.txt). + +=head2 Editors + +A suitable text-editor can be downloaded +from symbian http://developer.epocworld.com/downloads/progs/Editor.zip + +=head2 Features + +The built-in function EPOC::getcwd returns the current directory. -Pathnames to executables in eshell.exe have to be written with -backslashes, file arguments to perl with slashes. The default drive of -perl is the same as the drive perl.exe is located on, the default path -is the path perl.exe is / (???). +=head2 Restrictions -i.e. command lines look a little bit funny: +Features are left out, because of restrictions of the POSIX support in +EPOC: -D:\perl.exe C:/test.pl >C:/output.txt +=over 4 -In order to use Getopt::Long you have to autosplit this module by hand: run +=item * -\perl.exe \autosplit.pl in order to create the necessary files. +backquoting, pipes etc. -You may have a problem to create perl scripts. A cumbersome workaround -is to use the OPL Editor and exporting to text. +=item * -Problems --------- +system() does not inherit ressources like: file descriptors, +environment etc. -The following known problems exist: +=item * -1) no support for system, backquoting, pipes etc. One cannot exec a - different process. +signal, kill, alarm. Do not try to use them. This may be +impossible to implement on EPOC. -2) no signals, kill, alarm. Do not try to use them. This may be - impossible to implement on EPOC. +=item * -3) select is missing. +select is missing. -4) binmode does not exist. (No CR LF to LF translation for text files) +=item * -5) Only a stub Config.pm +binmode does not exist. (No CR LF to LF translation for text files) -6) EPOC does not handle the notion of current drive and current - directory very well (i.e. not at all, but it tries hard to emulate - one) +=item * -7) sockets may hardly of any use. +EPOC does not handle the notion of current drive and current +directory very well (i.e. not at all, but it tries hard to emulate +one) See PATH. -8) You need the shell eshell.exe in order to run perl.exe and supply - it with arguments. +=item * +You need the shell eshell.exe in order to run perl.exe and supply +it with arguments. -Compiling Perl 5 on the EPOC cross compiling envionment. --------------------------------------------------------- +=item * -0. You will need the C++ SDK from - http://developer.epocworld.com/. Install it on a separate - drive. +Heap is limited to 4MB. -1. Get the Perl sources from your nearest CPAN site. - Unpack the sources of perl5.005_60 in the epoc development drive. - -2. Copy all files in the directory perl5.005_60/epoc to perl5.005_60. +=back -3. Check the perl.mmp file: It should have the correct locations for - project und subproject (see step 1) +=head2 Compiling Perl 5 on the EPOC cross compiling environment -4. Change to the EPOC development drive and run - makmake perl marm - nmake -f perl.marm - makesis perl.pkg perl5.005.sis +Sorry, this is far too short. -5. Beam the perl5.005.sis to the Psion5, install and enjoy! +=over 4 -You can use epoc\createpkg.pl to generate a new perl.pkg file. +=item * +You will need the C++ SDK from http://developer.epocworld.com/. -Wish List ---------- +=item * -- Implement an OPX to get rid of eshell.exe. +You will need to set up the cross SDK from +http://www.science-computing.de/o.flebbe/sdk -- Implement system(), in order to run the tests. +=item * + +You may have to adjust config.sh (cc, cppflags) for your epoc +install location. + +=item * + +You may have to adjust config.sh for your cross SDK location + +=item * + +Get the Perl sources from your nearest CPAN site. + +=item * + +Unpack the sources. + +=item * + +Build a native perl from this sources... + + cp epoc/* . + ./Configure -S + make perl.a + cp miniperl.native miniperl + make perl + make ext/Errno/pm_to_blib + perl link.pl perlmain.o lib/auto/DynaLoader/DynaLoader.a \ + lib/auto/Data/Dumper/Dumper.a \ + lib/auto/File/Glob/Glob.a lib/auto/IO/IO.a \ + lib/auto/Socket/Socket.a \ + lib/auto/Fcntl/Fcntl.a lib/auto/Sys/Hostname/Hostname.a \ + perl.a `cat ext.libs` + perl createpkg.pl + + wine G:/bin/makesis perl.pkg perl.sis + +=back + +=head1 SUPPORT STATUS + +I'm offering this port "as is". You can ask me questions, but I can't +guarantee I'll be able to answer them. + +=head1 AUTHOR + +Olaf Flebbe +http://members.linuxstart.com/~oflebbe/perl/perl5.html -- Implement getprotcolbyname() and relatives. +=head1 LAST UPDATE -Support Status --------------- +2000-09-18 -I'm offering this port "as is". You can ask me questions, but I can't -guarantee I'll be able to answer them; I don't know much about Perl -internals myself; +=cut