=head1 SYNOPSIS
-This is a port of Perl version 5 to VOS. Perl is a scripting or
-macro language that is popular on many systems. See L<perlbook>
-for a number of good books on Perl.
-
-These are instructions for building Perl from source. Most people can
-simply download a pre-compiled distribution from the VOS anonymous FTP
-site. If you are running VOS Release 14.2.0 or earlier, download Perl
-from ftp://ftp.stratus.com/pub/vos/posix/alpha/alpha.html. If you are
-running VOS Release 14.3.0 or later, download Perl from
-ftp://ftp.stratus.com/pub/vos/posix/ga/ga.html. Instructions for
-unbundling the Perl distribution file are at
+This file contains notes for building perl on the Stratus VOS
+operating system. Perl is a scripting or macro language that is
+popular on many systems. See L<perlbook> for a number of good
+books on Perl.
+
+These are instructions for building Perl from source. Most
+people can simply download a pre-compiled distribution from the
+VOS anonymous FTP site. This version of Perl is not supported
+on VOS Release 14.2.0 or earlier releases. If you are running
+VOS Release 14.3.0 or later, download Perl from
+ftp://ftp.stratus.com/pub/vos/posix/ga/ga.html. Instructions
+for unbundling the Perl distribution file are at
ftp://ftp.stratus.com/pub/vos/utility/utility.html.
-=head2 Stratus POSIX Support
-
-Note that there are two different implementations of POSIX.1
-support on VOS. There is an alpha version of POSIX that is
-available from the Stratus anonymous ftp site
-(ftp://ftp.stratus.com/pub/vos/posix/). There is
-a generally-available version of POSIX that comes with the VOS
-Standard C Compiler or VOS C runtime in VOS Release 14.3.0 or
-higher. This port of perl will compile and bind with either
-version of POSIX.
-
-Most of the Perl features should work on VOS regardless of which
-version of POSIX that you are using. However, the alpha version
-of POSIX is missing a number of key functions, and therefore any
-attempt by perl.pm to call the following unimplemented POSIX
-functions will result in an error message and an immediate and
-fatal call to the VOS debugger. They are "dup", "fork", and
-"waitpid". The lack of these functions prevents you from
-starting VOS commands and grabbing their output in perl. The
-workaround is to run the commands outside of perl, then have perl
-process the output file. These functions are all available in
-the generally-available version of POSIX.
+If you are running VOS Release 14.4.1 or later, you can obtain a
+pre-compiled, supported copy of perl by purchasing Release 2.0.1
+(or later) of the VOS GNU C++ and GNU Tools product from Stratus
+Technologies.
-=head1 INSTALLING PERL IN VOS
-
-=head2 Compiling Perl 5 on VOS
-
-Before you can build Perl 5 on VOS, you need to have or acquire the
-following additional items.
-
-=over 5
-
-=item 1
-
-The VOS Standard C Compiler (or the VOS Standard C
-Cross-Compiler) and the VOS C Runtime. If you are using
-the generally-available version of POSIX support, you may
-instead use the VOS GNU C/C++ Compiler. These are
-standard Stratus products.
-
-=item 2
-
-Either the VOS OS TCP/IP or STCP product set. If you are
-building with the alpha version of POSIX you need the OS
-TCP/IP product set. If you are building with the
-generally-available version of POSIX you need the STCP
-product set. These are standard Stratus products.
-
-=item 3
-
-Either the alpha or generally-available version of the VOS
-POSIX.1 environment.
-
-The alpha version of POSIX.1 support is available on the
-Stratus FTP site. Login anonymously to ftp.stratus.com and
-get the file /pub/vos/posix/alpha/posix.save.evf.gz in
-binary file-transfer mode. Or use the Uniform Resource
-Locator (URL)
-ftp://ftp.stratus.com/pub/vos/posix/alpha/posix.save.evf.gz from
-your web browser. Instructions for unbundling this file
-are at ftp://ftp.stratus.com/pub/vos/utility/utility.html.
-This is not a standard Stratus product.
-
-In VOS Release 14.3.0, the generally-available version of
-POSIX.1 support is bundled with the VOS Standard C compiler
-(or Standard C Cross-Compiler). In VOS Release 14.4.0 or
-higher, it is also bundled with the VOS C Runtime. These
-are standard Stratus products.
-
-=item 4
-
-You must compile this version of Perl 5 on VOS Release
-14.1.0 or higher because some of the perl source files
-contain more than 32,767 source lines. Due to VOS
-release-compatibility rules, this port of perl may not
-execute on VOS Release 12 or earlier.
-
-=item 5
-
-If you are using the generally-available version of VOS POSIX
-support, then you should also acquire the VOS GNU C/C++ Compiler
-and GNU Tools product because it provides many common Unix or
-POSIX commands. When perl is built with this version of POSIX
-support, it assumes that it can find "bash", "sed" and other
-POSIX-compatible commands in the directory
-/system/gnu_library/bin.
-
-=back
-
-To build perl 5, change to the "vos" subdirectory and type the
-command "compile_perl -processor X", where X is the processor
-type (mc68020, i80860, pa7100, pa8000) that you wish to use.
-Note that the generally-available version of POSIX.1 support is
-not available for the mc68020 or i80860 processors.
+=head1 BUILDING PERL FOR VOS
-Use the "-version alpha" control argument to build perl with
-the alpha version of POSIX support, and use the "-version
-ga" control argument to build it with the
-generally-available version of POSIX. The default is "ga".
+To build perl from its source code, you must have a Continuum
+platform running VOS Release 14.5.0 or later, the STCP product,
+and the GNU C++ and GNU Tools, Release 2.0.1 or later.
-Use the "-compiler cc" control argument to build perl with
-the VOS Standard C compiler. Use the "-compiler gcc"
-control argument to build it with the GNU GCC compiler. The
-default is "cc".
+To build full perl using the supplied Configure script and
+makefiles, change to the "vos" subdirectory and type the command
+"compile_full_perl" or "start_process compile_full_perl". This
+will configure, build, and test perl.
-You must have purchased the VOS Standard C Cross Compiler in
-order to compile perl for a processor type that is different
-from the processor type of the module.
-
-Note that code compiled for the pa7100 processor type can
-execute on the PA7100, PA8000, PA8500 and PA8600 processors, and
-that code compiled for the pa8000 processor type can execute on
-the PA8000, PA8500 and PA8600 processors.
-
-=head2 Installing Perl 5 on VOS
+=head1 INSTALLING PERL IN VOS
=over 4
=item 1
-Create the directory >system>ported>command_library.
-
-=item 2
-
-Copy the appropriate version of the perl program module to
-this directory. For example, with your current directory
-set to the top-level directory of Perl 5, to install the
-executable program module for the Motorola 68K
-architecture, enter:
+If you have built perl using the Configure script, ensure that
+you have modify permission to C<< >system>ported >> and type
- !copy_file vos>obj>perl.pm >system>ported>command_library>*
+ gmake install
-(If you wish to use both Perl version 4 and Perl version 5,
-you must give them different names; for example, perl.pm
-and perl5.pm).
-
-=item 3
-
-Create the directory >system>ported>perl>lib.
-
-=item 4
-
-Copy all of the files and subdirectories from the lib
-subdirectory into this new directory. For example, with
-the current directory set to the top-level directory of the
-perl distribution, enter:
-
- !copy_dir lib >system>ported>perl>lib>5.7
-
-=item 5
+=item 2
While there are currently no architecture-specific
extensions or modules distributed with perl, the following
directories can be used to hold such files:
- >system>ported>perl>lib>5.7.68k
- >system>ported>perl>lib>5.7.860
- >system>ported>perl>lib>5.7.7100
- >system>ported>perl>lib>5.7.8000
+ >system>ported>lib>perl5>5.9.0>7100
+ >system>ported>lib>perl5>5.9.0>8000
-=item 6
+=item 3
Site-specific perl extensions and modules can be installed in one of
two places. Put architecture-independent files into:
- >system>ported>perl>lib>site>5.7
+ >system>ported>lib>perl5>site_perl>5.9.0
-Put architecture-dependent files into one of the following
-directories:
+Put site-specific architecture-dependent files into one of the
+following directories:
- >system>ported>perl>lib>site>5.7.68k
- >system>ported>perl>lib>site>5.7.860
- >system>ported>perl>lib>site>5.7.7100
- >system>ported>perl>lib>site>5.7.8000
+ >system>ported>lib>perl5>site_perl>5.9.0>7100
+ >system>ported>lib>perl5>site_perl>5.9.0>8000
-=item 7
+=item 4
You can examine the @INC variable from within a perl program
to see the order in which Perl searches these directories.
=head1 USING PERL IN VOS
-=head2 Unimplemented Features of Perl on VOS
-
-If perl is built with the alpha version of VOS POSIX.1 support
-and if it attempts to call an unimplemented VOS POSIX.1
-function, it will print a fatal error message and enter the VOS
-debugger. This error is not recoverable. See vos_dummies.c for
-a list of the unimplemented POSIX.1 functions. To see what
-functions are unimplemented and what the error message looks
-like, compile and execute "test_vos_dummies.c".
-
=head2 Restrictions of Perl on VOS
This port of Perl version 5 to VOS prefers Unix-style,
See the file pod/perlport.pod for more information about the VOS
port of Perl.
+=head2 Handling of underflow and overflow
+
+Prior to VOS Release 14.7.0, VOS does not support automatically
+mapping overflowed floating-point values to +infinity, nor
+automatically mapping underflowed floating-point values to zero,
+unlike many other platforms. The Perl pack function has been
+modified to perform such mapping in software on VOS. Performing
+other floating-point computations that underflow or overflow
+will probably result in SIGFPE. Don't push your luck.
+
+As of VOS Release 14.7.0, the VOS POSIX runtime sets up the
+PA-RISC hardware floating-point status register so that the
+overflow and underflow exceptions do not trap, but instead
+automatically convert the result to infinity or zero, as
+appropriate. As of this writing, there are still floating-point
+operations that can trap, for example, subtracting two infinite
+values. This is recorded as suggestion posix-1022, which is not
+yet fixed.
+
+=head1 TEST STATUS
+
+When Perl 5.9.0 is built using the native build process on VOS
+Release 14.7.0 and GNU C++/GNU Tools 2.0.2a, all but nine
+attempted tests either pass or result in TODO (ignored)
+failures. The tests that fail are:
+
+t/io/dup, test 2
+t/io/tell, test 28
+t/op/pack, test 0
+ext/B/t/bytecode, test 1
+ext/Devel/Peek/t/Peek, test 1
+ext/Encode/t/enc_module, test 1
+ext/IO/t/io_dup, test 2
+lib/ExtUtils/t/MM_Unix, test 94
+lib/Net/ing/t/450_service, test 8
+
=head1 SUPPORT STATUS
I'm offering this port "as is". You can ask me questions, but I
excellent books available on the Perl language; consult a book
seller.
+If you want a supported version of perl for VOS, purchase the
+VOS GNU C++ and GNU Tools Release 2.0.1 (or later) product from
+Stratus Technologies, along with a support contract (or from
+anyone else who will sell you support).
+
=head1 AUTHOR
Paul Green (Paul.Green@stratus.com)
=head1 LAST UPDATE
-November 29, 2001
+January 15, 2004
=cut
https://perl5.git.perl.org / perl5.git / blobdiff