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522b859 jhi OS/400 PASE port
jhi authored
1 If you read this file _as_is_, just ignore the funny characters you see.
2 It is written in the POD format (see pod/perlpod.pod) which is specially
3 designed to be readable as is.
4
5 =head1 NAME
6
7 README.os400 - Perl version 5 on OS/400
8
9 =head1 DESCRIPTION
10
11 This document describes various features of IBM's OS/400 operating
12 system that will affect how Perl version 5 (hereafter just Perl) is
13 compiled and/or runs.
14
15 By far the easiest way to build Perl for OS/400 is to use the PASE
16 (Portable Application Solutions Environment), for more information see
17 http://www.iseries.ibm.com/developer/factory/pase/index.html
18 This environment allows one to use AIX APIs while programming, and it
19 provides a runtime that allows AIX binaries to execute directly on the
20 PowerPC iSeries.
21
22 =head2 Compiling Perl for OS/400 PASE
23
24 The recommended way to build Perl for the OS/400 PASE is to build the
25 Perl 5 source code (release 5.8.1 or later) under AIX.
26
27 The trick is to give a special parameter to the Configure shell script
28 when running it on AIX:
29
30 sh Configure -DPASE ...
31
32 The default installation directory of Perl under PASE is /QOpenSys/perl.
33 This can be modified if needed with Configure parameter -Dprefix=/some/dir.
34
35 Starting from OS/400 V5R2 the IBM Visual Age compiler is supported
36 on OS/400 PASE, so it is possible to build Perl natively on OS/400.
37 The easier way, however, is to compile in AIX, as just described.
38
64e35db Rafael Garcia-Suarez Integrate change #18391 from maint-5.8:
rgs authored
39 If you don't want to install the compiled Perl in AIX into /QOpenSys
40 (for packaging it before copying it to PASE), you can use a Configure
41 parameter: -Dinstallprefix=/tmp/QOpenSys/perl. This will cause the
42 "make install" to install everything into that directory, while the
43 installed files still think they are (will be) in /QOpenSys/perl.
44
522b859 jhi OS/400 PASE port
jhi authored
45 If building natively on PASE, please do the build under the /QOpenSys
46 directory, since Perl is happier when built on a case sensitive filesystem.
47
48 =head2 Installing Perl in OS/400 PASE
49
50 If you are compiling on AIX, simply do a "make install" on the AIX box.
51 Once the install finishes, tar up the /QOpenSys/perl directory. Transfer
52 the tarball to the OS/400 using FTP with the following commands:
53
54 > binary
55 > site namefmt 1
56 > put perl.tar /QOpenSys
57
58 Once you have it on, simply bring up a PASE shell and extract the tarball.
59
60 If you are compiling in PASE, then "make install" is the only thing you
61 will need to do.
62
63 The default path for perl binary is /QOpenSys/perl/bin/perl. You'll
64 want to symlink /QOpenSys/usr/bin/perl to this file so you don't have
65 to modify your path.
66
67 =head2 Using Perl in OS/400 PASE
68
69 Perl in PASE may be used in the same manner as you would use Perl on AIX.
70
71 Scripts starting with #!/usr/bin/perl should work if you have
72 /QOpenSys/usr/bin/perl symlinked to your perl binary. This will not
73 work if you've done a setuid/setgid or have environment variable
74 PASE_EXEC_QOPENSYS="N". If you have V5R1, you'll need to get the
75 latest PTFs to have this feature. Scripts starting with
76 #!/QOpenSys/perl/bin/perl should always work.
77
954a4c1 jhi more PASE wisdom
jhi authored
78 =head2 Known Problems
79
61074b5 jhi [PATCH] AIX test shouldn't trip OS/400 PASE
jhi authored
80 When compiling in PASE, there is no "oslevel" command. Therefore,
81 you may want to create a script called "oslevel" that echoes the
82 level of AIX that your version of PASE runtime supports. If you're
83 unsure, consult your documentation or use "4.3.3.0".
84
85 If you have test cases that fail, check for the existence of spool files.
86 The test case may be trying to use a syscall that is not implemented
87 in PASE. To avoid the SIGILL, try setting the PASE_SYSCALL_NOSIGILL
88 environment variable or have a handler for the SIGILL. If you can
89 compile programs for PASE, run the config script and edit config.sh
90 when it gives you the option. If you want to remove fchdir(), which
91 isn't implement in V5R1, simply change the line that says:
92
93 d_fchdir='define'
94
95 to
96
97 d_fchdir='undef'
98
99 and then compile Perl. The places where fchdir() is used have
100 alternatives for systems that do not have fchdir() available.
954a4c1 jhi more PASE wisdom
jhi authored
101
522b859 jhi OS/400 PASE port
jhi authored
102 =head2 Perl on ILE
103
104 There exists a port of Perl to the ILE environment. This port, however,
105 is based quite an old release of Perl, Perl 5.00502 (August 1998).
106 (As of July 2002 the latest release of Perl is 5.8.0, and even 5.6.1
107 has been out since April 2001.) If you need to run Perl on ILE, though,
108 you may need this older port: http://www.cpan.org/ports/#os400
109 Note that any Perl release later than 5.00502 has not been ported to ILE.
110
111 If you need to use Perl in the ILE environment, you may want to consider
112 using Qp2RunPase() to call the PASE version of Perl.
113
114 =head1 AUTHORS
115
116 Jarkko Hietaniemi <jhi@iki.fi>
117 Bryan Logan <bryanlog@us.ibm.com>
118 David Larson <larson1@us.ibm.com>
119
120 =cut
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