1PERLOS400(1) Perl Programmers Reference Guide PERLOS400(1)
2
6 perlos400 - Perl version 5 on OS/400
7 This document needs to be updated, but we don't know what it should
9 say. Please submit comments to <https://github.com/Perl/perl5/issues>.
10
12 This document describes various features of IBM's OS/400 operating
13 system that will affect how Perl version 5 (hereafter just Perl) is
14 compiled and/or runs.
15 By far the easiest way to build Perl for OS/400 is to use the PASE
17 (Portable Application Solutions Environment), for more information see
18 <http://www.iseries.ibm.com/developer/factory/pase/index.html> This
19 environment allows one to use AIX APIs while programming, and it
20 provides a runtime that allows AIX binaries to execute directly on the
21 PowerPC iSeries.
22 Compiling Perl for OS/400 PASE
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 The trick is to give a special parameter to the Configure shell script
28 when running it on AIX:
29 sh Configure -DPASE ...
31 The default installation directory of Perl under PASE is
33 /QOpenSys/perl. This can be modified if needed with Configure
34 parameter -Dprefix=/some/dir.
35 Starting from OS/400 V5R2 the IBM Visual Age compiler is supported on
37 OS/400 PASE, so it is possible to build Perl natively on OS/400. The
38 easier way, however, is to compile in AIX, as just described.
39 If you don't want to install the compiled Perl in AIX into /QOpenSys
41 (for packaging it before copying it to PASE), you can use a Configure
42 parameter: -Dinstallprefix=/tmp/QOpenSys/perl. This will cause the
43 "make install" to install everything into that directory, while the
44 installed files still think they are (will be) in /QOpenSys/perl.
45 If building natively on PASE, please do the build under the /QOpenSys
47 directory, since Perl is happier when built on a case sensitive
48 filesystem.
49 Installing Perl in OS/400 PASE
51 If you are compiling on AIX, simply do a "make install" on the AIX box.
52 Once the install finishes, tar up the /QOpenSys/perl directory.
53 Transfer the tarball to the OS/400 using FTP with the following
54 commands:
55 > binary
57 > site namefmt 1
58 > put perl.tar /QOpenSys
59 Once you have it on, simply bring up a PASE shell and extract the
61 tarball.
62 If you are compiling in PASE, then "make install" is the only thing you
64 will need to do.
65 The default path for perl binary is /QOpenSys/perl/bin/perl. You'll
67 want to symlink /QOpenSys/usr/bin/perl to this file so you don't have
68 to modify your path.
69 Using Perl in OS/400 PASE
71 Perl in PASE may be used in the same manner as you would use Perl on
72 AIX.
73 Scripts starting with #!/usr/bin/perl should work if you have
75 /QOpenSys/usr/bin/perl symlinked to your perl binary. This will not
76 work if you've done a setuid/setgid or have environment variable
77 PASE_EXEC_QOPENSYS="N". If you have V5R1, you'll need to get the
78 latest PTFs to have this feature. Scripts starting with
79 #!/QOpenSys/perl/bin/perl should always work.
80 Known Problems
82 When compiling in PASE, there is no "oslevel" command. Therefore, you
83 may want to create a script called "oslevel" that echoes the level of
84 AIX that your version of PASE runtime supports. If you're unsure,
85 consult your documentation or use "4.3.3.0".
86 If you have test cases that fail, check for the existence of spool
88 files. The test case may be trying to use a syscall that is not
89 implemented in PASE. To avoid the SIGILL, try setting the
90 PASE_SYSCALL_NOSIGILL environment variable or have a handler for the
91 SIGILL. If you can compile programs for PASE, run the config script
92 and edit config.sh when it gives you the option. If you want to remove
93 fchdir(), which isn't implement in V5R1, simply change the line that
94 says:
95 d_fchdir='define'
97 to
99 d_fchdir='undef'
101 and then compile Perl. The places where fchdir() is used have
103 alternatives for systems that do not have fchdir() available.
104 Perl on ILE
106 There exists a port of Perl to the ILE environment. This port,
107 however, is based quite an old release of Perl, Perl 5.00502 (August
108 1998). (As of July 2002 the latest release of Perl is 5.8.0, and even
109 5.6.1 has been out since April 2001.) If you need to run Perl on ILE,
110 though, you may need this older port:
111 <http://www.cpan.org/ports/#os400> Note that any Perl release later
112 than 5.00502 has not been ported to ILE.
113 If you need to use Perl in the ILE environment, you may want to
115 consider using Qp2RunPase() to call the PASE version of Perl.
116
118 Jarkko Hietaniemi <jhi@iki.fi> Bryan Logan <bryanlog@us.ibm.com> David
119 Larson <larson1@us.ibm.com>
120perl v5.32.1 2021-05-31 PERLOS400(1)