+# vim: syntax=pod
+
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.
=head1 NAME
-README.aix - Perl version 5 on IBM Unix (AIX) systems
+perlaix - Perl version 5 on IBM AIX (UNIX) systems
=head1 DESCRIPTION
-This document describes various features of IBM's Unix operating
-system (AIX) that will affect how Perl version 5 (hereafter just Perl)
+This document describes various features of IBM's UNIX operating
+system AIX that will affect how Perl version 5 (hereafter just Perl)
is compiled and/or runs.
=head2 Compiling Perl 5 on AIX
+For information on compilers on older versions of AIX, see L</Compiling
+Perl 5 on older AIX versions up to 4.3.3>.
+
+When compiling Perl, you must use an ANSI C compiler. AIX does not ship
+an ANSI compliant C compiler with AIX by default, but binary builds of
+gcc for AIX are widely available. A version of gcc is also included in
+the AIX Toolbox which is shipped with AIX.
+
+=head2 Supported Compilers
+
+Currently all versions of IBM's "xlc", "xlc_r", "cc", "cc_r" or
+"vac" ANSI/C compiler will work for building Perl if that compiler
+works on your system.
+
+If you plan to link Perl to any module that requires thread-support,
+like DBD::Oracle, it is better to use the _r version of the compiler.
+This will not build a threaded Perl, but a thread-enabled Perl. See
+also L</Threaded Perl> later on.
+
+As of writing (2010-09) only the I<IBM XL C for AIX> or I<IBM XL C/C++
+for AIX> compiler is supported by IBM on AIX 5L/6.1/7.1.
+
+The following compiler versions are currently supported by IBM:
+
+ IBM XL C and IBM XL C/C++ V8, V9, V10, V11
+
+The XL C for AIX is integrated in the XL C/C++ for AIX compiler and
+therefore also supported.
+
+If you choose XL C/C++ V9 you need APAR IZ35785 installed
+otherwise the integrated SDBM_File do not compile correctly due
+to an optimization bug. You can circumvent this problem by
+adding -qipa to the optimization flags (-Doptimize='-O -qipa').
+The PTF for APAR IZ35785 which solves this problem is available
+from IBM (April 2009 PTF for XL C/C++ Enterprise Edition for AIX, V9.0).
+
+If you choose XL C/C++ V11 you need the April 2010 PTF (or newer)
+installed otherwise you will not get a working Perl version.
+
+Perl can be compiled with either IBM's ANSI C compiler or with gcc.
+The former is recommended, as not only it can compile Perl with no
+difficulty, but also can take advantage of features listed later
+that require the use of IBM compiler-specific command-line flags.
+
+If you decide to use gcc, make sure your installation is recent and
+complete, and be sure to read the Perl INSTALL file for more gcc-specific
+details. Please report any hoops you had to jump through to the
+development team.
+
+=head2 Incompatibility with AIX Toolbox lib gdbm
+
+If the AIX Toolbox version of lib gdbm < 1.8.3-5 is installed on your
+system then Perl will not work. This library contains the header files
+/opt/freeware/include/gdbm/dbm.h|ndbm.h which conflict with the AIX
+system versions. The lib gdbm will be automatically removed from the
+wanted libraries if the presence of one of these two header files is
+detected. If you want to build Perl with GDBM support then please install
+at least gdbm-devel-1.8.3-5 (or higher).
+
+=head2 Perl 5 was successfully compiled and tested on:
+
+ Perl | AIX Level | Compiler Level | w th | w/o th
+ -------+---------------------+-------------------------+------+-------
+ 5.12.2 |5.1 TL9 32 bit | XL C/C++ V7 | OK | OK
+ 5.12.2 |5.1 TL9 64 bit | XL C/C++ V7 | OK | OK
+ 5.12.2 |5.2 TL10 SP8 32 bit | XL C/C++ V8 | OK | OK
+ 5.12.2 |5.2 TL10 SP8 32 bit | gcc 3.2.2 | OK | OK
+ 5.12.2 |5.2 TL10 SP8 64 bit | XL C/C++ V8 | OK | OK
+ 5.12.2 |5.3 TL8 SP8 32 bit | XL C/C++ V9 + IZ35785 | OK | OK
+ 5.12.2 |5.3 TL8 SP8 32 bit | gcc 4.2.4 | OK | OK
+ 5.12.2 |5.3 TL8 SP8 64 bit | XL C/C++ V9 + IZ35785 | OK | OK
+ 5.12.2 |5.3 TL10 SP3 32 bit | XL C/C++ V11 + Apr 2010 | OK | OK
+ 5.12.2 |5.3 TL10 SP3 64 bit | XL C/C++ V11 + Apr 2010 | OK | OK
+ 5.12.2 |6.1 TL1 SP7 32 bit | XL C/C++ V10 | OK | OK
+ 5.12.2 |6.1 TL1 SP7 64 bit | XL C/C++ V10 | OK | OK
+ 5.13 |7.1 TL0 SP1 32 bit | XL C/C++ V11 + Jul 2010 | OK | OK
+ 5.13 |7.1 TL0 SP1 64 bit | XL C/C++ V11 + Jul 2010 | OK | OK
+
+ w th = with thread support
+ w/o th = without thread support
+ OK = tested
+
+Successfully tested means that all "make test" runs finish with a
+result of 100% OK. All tests were conducted with -Duseshrplib set.
+
+All tests were conducted on the oldest supported AIX technology level
+with the latest support package applied. If the tested AIX version is
+out of support (AIX 4.3.3, 5.1, 5.2) then the last available support
+level was used.
+
+=head2 Building Dynamic Extensions on AIX
+
+Starting from Perl 5.7.2 (and consequently 5.8.x / 5.10.x / 5.12.x)
+and AIX 4.3 or newer Perl uses the AIX native dynamic loading interface
+in the so called runtime linking mode instead of the emulated interface
+that was used in Perl releases 5.6.1 and earlier or, for AIX releases
+4.2 and earlier. This change does break backward compatibility with
+compiled modules from earlier Perl releases. The change was made to make
+Perl more compliant with other applications like Apache/mod_perl which are
+using the AIX native interface. This change also enables the use of
+C++ code with static constructors and destructors in Perl extensions,
+which was not possible using the emulated interface.
+
+It is highly recommended to use the new interface.
+
+=head2 Using Large Files with Perl
+
+Should yield no problems.
+
+=head2 Threaded Perl
+
+Should yield no problems with AIX 5.1 / 5.2 / 5.3 / 6.1 / 7.1.
+
+IBM uses the AIX system Perl (V5.6.0 on AIX 5.1 and V5.8.2 on
+AIX 5.2 / 5.3 and 6.1; V5.8.8 on AIX 5.3 TL11 and AIX 6.1 TL4; V5.10.1
+on AIX 7.1) for some AIX system scripts. If you switch the links in
+/usr/bin from the AIX system Perl (/usr/opt/perl5) to the newly build
+Perl then you get the same features as with the IBM AIX system Perl if
+the threaded options are used.
+
+The threaded Perl build works also on AIX 5.1 but the IBM Perl
+build (Perl v5.6.0) is not threaded on AIX 5.1.
+
+Perl 5.12 an newer is not compatible with the IBM fileset perl.libext.
+
+=head2 64-bit Perl
+
+If your AIX system is installed with 64-bit support, you can expect 64-bit
+configurations to work. If you want to use 64-bit Perl on AIX 6.1
+you need an APAR for a libc.a bug which affects (n)dbm_XXX functions.
+The APAR number for this problem is IZ39077.
+
+If you need more memory (larger data segment) for your Perl programs you
+can set:
+
+ /etc/security/limits
+ default: (or your user)
+ data = -1 (default is 262144 * 512 byte)
+
+With the default setting the size is limited to 128MB.
+The -1 removes this limit. If the "make test" fails please change
+your /etc/security/limits as stated above.
+
+=head2 Long doubles
+
+IBM calls its implementation of long doubles 128-bit, but it is not
+the IEEE 128-bit ("quadruple precision") which would give 116 bit of
+mantissa (nor it is implemented in hardware), instead it's a special
+software implementation called "double-double", which gives 106 bits
+of mantissa.
+
+There seem to be various problems in this long double implementation.
+If Configure detects this brokenness, it will disable the long double support.
+This can be overridden with explicit C<-Duselongdouble> (or C<-Dusemorebits>,
+which enables both long doubles and 64 bit integers). If you decide to
+enable long doubles, for most of the broken things Perl has implemented
+workarounds, but the handling of the special values infinity and NaN
+remains badly broken: for example infinity plus zero results in NaN.
+
+=head2 Recommended Options AIX 5.1/5.2/5.3/6.1 and 7.1 (threaded/32-bit)
+
+With the following options you get a threaded Perl version which
+passes all make tests in threaded 32-bit mode, which is the default
+configuration for the Perl builds that AIX ships with.
+
+ rm config.sh
+ ./Configure \
+ -d \
+ -Dcc=cc_r \
+ -Duseshrplib \
+ -Dusethreads \
+ -Dprefix=/usr/opt/perl5_32
+
+The -Dprefix option will install Perl in a directory parallel to the
+IBM AIX system Perl installation.
+
+=head2 Recommended Options AIX 5.1/5.2/5.3/6.1 and 7.1 (32-bit)
+
+With the following options you get a Perl version which passes
+all make tests in 32-bit mode.
+
+ rm config.sh
+ ./Configure \
+ -d \
+ -Dcc=cc_r \
+ -Duseshrplib \
+ -Dprefix=/usr/opt/perl5_32
+
+The -Dprefix option will install Perl in a directory parallel to the
+IBM AIX system Perl installation.
+
+=head2 Recommended Options AIX 5.1/5.2/5.3/6.1 and 7.1 (threaded/64-bit)
+
+With the following options you get a threaded Perl version which
+passes all make tests in 64-bit mode.
+
+ export OBJECT_MODE=64 / setenv OBJECT_MODE 64 (depending on your shell)
+
+ rm config.sh
+ ./Configure \
+ -d \
+ -Dcc=cc_r \
+ -Duseshrplib \
+ -Dusethreads \
+ -Duse64bitall \
+ -Dprefix=/usr/opt/perl5_64
+
+=head2 Recommended Options AIX 5.1/5.2/5.3/6.1 and 7.1 (64-bit)
+
+With the following options you get a Perl version which passes all
+make tests in 64-bit mode.
+
+ export OBJECT_MODE=64 / setenv OBJECT_MODE 64 (depending on your shell)
+
+ rm config.sh
+ ./Configure \
+ -d \
+ -Dcc=cc_r \
+ -Duseshrplib \
+ -Duse64bitall \
+ -Dprefix=/usr/opt/perl5_64
+
+The -Dprefix option will install Perl in a directory parallel to the
+IBM AIX system Perl installation.
+
+If you choose gcc to compile 64-bit Perl then you need to add the
+following option:
+
+ -Dcc='gcc -maix64'
+
+
+=head2 Compiling Perl 5 on AIX 7.1.0
+
+A regression in AIX 7 causes a failure in make test in Time::Piece during
+daylight savings time. APAR IV16514 provides the fix for this. A quick
+test to see if it's required, assuming it is currently daylight savings
+in Eastern Time, would be to run C< TZ=EST5 date +%Z >. This will come
+back with C<EST> normally, but nothing if you have the problem.
+
+
+=head2 Compiling Perl 5 on older AIX versions up to 4.3.3
+
+Due to the fact that AIX 4.3.3 reached end-of-service in December 31,
+2003 this information is provided as is. The Perl versions prior to
+Perl 5.8.9 could be compiled on AIX up to 4.3.3 with the following
+settings (your mileage may vary):
+
When compiling Perl, you must use an ANSI C compiler. AIX does not ship
an ANSI compliant C-compiler with AIX by default, but binary builds of
gcc for AIX are widely available.
xlC.aix50.rte 5.0.2.0 or 6.0.0.3
-subversions are not the same `latest' on all OS versions. For example,
+subversions are not the same "latest" on all OS versions. For example,
the latest xlC-5 on aix41 is 5.0.2.9, while on aix43, it is 5.0.2.7.
Perl can be compiled with either IBM's ANSI C compiler or with gcc.
Upgrading to at least 5.0.2.0 is recommended.
If you decide to use gcc, make sure your installation is recent and
-complete, and be sure to read the Perl README file for more gcc-specific
+complete, and be sure to read the Perl INSTALL file for more gcc-specific
details. Please report any hoops you had to jump through to the development
team.
bos.rte 4.3.2.0 COMMITTED Base Operating System Runtime
#
-The same might happen to AIX 5.1 or other OS levels. As a side note, perl
+The same might happen to AIX 5.1 or other OS levels. As a side note, Perl
cannot be built without bos.adt.syscalls and bos.adt.libm installed
# lslpp -l | egrep "syscalls|libm"
bos.adt.syscalls 5.1.0.36 COMMITTED System Calls Application
#
-=head2 Building Dynamic Extensions on AIX
+=head2 Building Dynamic Extensions on AIX E<lt> 5L
AIX supports dynamically loadable objects as well as shared libraries.
Shared libraries by convention end with the suffix .a, which is a bit
misleading, as an archive can contain static as well as dynamic members.
-For perl dynamically loaded objects we use the .so suffix also used on
+For Perl dynamically loaded objects we use the .so suffix also used on
many other platforms.
Note that starting from Perl 5.7.2 (and consequently 5.8.0) and AIX 4.3
called runtime linking mode instead of the emulated interface that was
used in Perl releases 5.6.1 and earlier or, for AIX releases 4.2 and
earlier. This change does break backward compatibility with compiled
-modules from earlier perl releases. The change was made to make Perl
+modules from earlier Perl releases. The change was made to make Perl
more compliant with other applications like Apache/mod_perl which are
using the AIX native interface. This change also enables the use of C++
-code with static constructors and destructors in perl extensions, which
+code with static constructors and destructors in Perl extensions, which
was not possible using the emulated interface.
=head2 The IBM ANSI C Compiler
level. Of course this is subject to changes. You can only upgrade
versions from ftp-available updates if the first three digit groups
are the same (in where you can skip intermediate unlike the patches
-in the developer snapshots of perl), or to one version up where the
-`base' is available. In other words, the AIX compiler patches are
+in the developer snapshots of Perl), or to one version up where the
+"base" is available. In other words, the AIX compiler patches are
cumulative.
vac.C.4.4.0.1 => vac.C.4.4.0.3 is OK (vac.C.4.4.0.2 not needed)
- xlC.C.3.1.3.3 => xlC.C.3.1.4.10 is NOT OK (xlC.C.3.1.4.0 is not available)
+ xlC.C.3.1.3.3 => xlC.C.3.1.4.10 is NOT OK (xlC.C.3.1.4.0 is not
+ available)
# ftp ftp.software.ibm.com
Connected to service.boulder.ibm.com.
xlC.C 3.1.4.9 COMMITTED C for AIX Compiler
xlC.C 3.1.4.0 COMMITTED C for AIX Compiler
# grep 'xlC.C.3.1.4.*.bff' xlc.ll
- -rw-r--r-- 1 45776101 1 6286336 Jul 22 1996 xlC.C.3.1.4.1.bff
- -rw-rw-r-- 1 45776101 1 6173696 Aug 24 1998 xlC.C.3.1.4.10.bff
- -rw-r--r-- 1 45776101 1 6319104 Aug 14 1996 xlC.C.3.1.4.2.bff
- -rw-r--r-- 1 45776101 1 6316032 Oct 21 1996 xlC.C.3.1.4.3.bff
- -rw-r--r-- 1 45776101 1 6315008 Dec 20 1996 xlC.C.3.1.4.4.bff
- -rw-rw-r-- 1 45776101 1 6178816 Mar 28 1997 xlC.C.3.1.4.5.bff
- -rw-rw-r-- 1 45776101 1 6188032 May 22 1997 xlC.C.3.1.4.6.bff
- -rw-rw-r-- 1 45776101 1 6191104 Sep 5 1997 xlC.C.3.1.4.7.bff
- -rw-rw-r-- 1 45776101 1 6185984 Jan 13 1998 xlC.C.3.1.4.8.bff
- -rw-rw-r-- 1 45776101 1 6169600 May 27 1998 xlC.C.3.1.4.9.bff
+ -rw-r--r-- 1 45776101 1 6286336 Jul 22 1996 xlC.C.3.1.4.1.bff
+ -rw-rw-r-- 1 45776101 1 6173696 Aug 24 1998 xlC.C.3.1.4.10.bff
+ -rw-r--r-- 1 45776101 1 6319104 Aug 14 1996 xlC.C.3.1.4.2.bff
+ -rw-r--r-- 1 45776101 1 6316032 Oct 21 1996 xlC.C.3.1.4.3.bff
+ -rw-r--r-- 1 45776101 1 6315008 Dec 20 1996 xlC.C.3.1.4.4.bff
+ -rw-rw-r-- 1 45776101 1 6178816 Mar 28 1997 xlC.C.3.1.4.5.bff
+ -rw-rw-r-- 1 45776101 1 6188032 May 22 1997 xlC.C.3.1.4.6.bff
+ -rw-rw-r-- 1 45776101 1 6191104 Sep 5 1997 xlC.C.3.1.4.7.bff
+ -rw-rw-r-- 1 45776101 1 6185984 Jan 13 1998 xlC.C.3.1.4.8.bff
+ -rw-rw-r-- 1 45776101 1 6169600 May 27 1998 xlC.C.3.1.4.9.bff
# wget ftp://ftp.software.ibm.com/aix/fixes/v4/xlc/xlC.C.3.1.4.10.bff
#
vac.C 5.0.2.2 COMMITTED C for AIX Compiler
vac.C 5.0.2.0 COMMITTED C for AIX Compiler
# grep 'vac.C.5.0.2.*.bff' other.ll
- -rw-rw-r-- 1 45776101 1 13592576 Apr 16 2001 vac.C.5.0.2.0.bff
- -rw-rw-r-- 1 45776101 1 14133248 Apr 9 2002 vac.C.5.0.2.3.bff
- -rw-rw-r-- 1 45776101 1 14173184 May 20 2002 vac.C.5.0.2.4.bff
- -rw-rw-r-- 1 45776101 1 14192640 Nov 22 2002 vac.C.5.0.2.6.bff
+ -rw-rw-r-- 1 45776101 1 13592576 Apr 16 2001 vac.C.5.0.2.0.bff
+ -rw-rw-r-- 1 45776101 1 14133248 Apr 9 2002 vac.C.5.0.2.3.bff
+ -rw-rw-r-- 1 45776101 1 14173184 May 20 2002 vac.C.5.0.2.4.bff
+ -rw-rw-r-- 1 45776101 1 14192640 Nov 22 2002 vac.C.5.0.2.6.bff
# wget ftp://ftp.software.ibm.com/aix/fixes/v4/other/vac.C.5.0.2.6.bff
#
Follow the messages ... and you're done.
If you like a more web-like approach, a good start point can be
-http://www14.software.ibm.com/webapp/download/downloadaz.jsp and click
+L<http://www14.software.ibm.com/webapp/download/downloadaz.jsp> and click
"C for AIX", and follow the instructions.
=head2 The usenm option
ld: 0711-317 ERROR: Undefined symbol: .setresuid
ld: 0711-317 ERROR: Undefined symbol: .setresgid
ld: 0711-317 ERROR: Undefined symbol: .setproctitle
- ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more information.
+ ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more
+ information.
you could retry with
Related to this, you probably should not use the C<-r> option of
Configure in AIX, because that affects of how the C<nm> tool is used.
-=head2 Using GNU's gcc for building perl
+=head2 Using GNU's gcc for building Perl
Using gcc-3.x (tested with 3.0.4, 3.1, and 3.2) now works out of the box,
as do recent gcc-2.9 builds available directly from IBM as part of their
http://www.ibm.com/servers/aix/products/aixos/linux/
-=head2 Using Large Files with Perl
+=head2 Using Large Files with Perl E<lt> 5L
Should yield no problems.
-=head2 Threaded Perl
+=head2 Threaded Perl E<lt> 5L
Threads seem to work OK, though at the moment not all tests pass when
threads are used in combination with 64-bit configurations.
You may get a warning when doing a threaded build:
- "pp_sys.c", line 4640.39: 1506-280 (W) Function argument assignment between types "unsigned char*" and "const void*" is not allowed.
+ "pp_sys.c", line 4640.39: 1506-280 (W) Function argument assignment
+ between types "unsigned char*" and "const void*" is not allowed.
The exact line number may vary, but if the warning (W) comes from a line
line this
different prototype than its non-reentrant variant, but the difference
is not really significant here.
-=head2 64-bit Perl
+=head2 64-bit Perl E<lt> 5L
If your AIX is installed with 64-bit support, you can expect 64-bit
configurations to work. In combination with threads some tests might
(such as time() and gettimeofday()) return broken values, and
therefore in AIX 4.2 Perl is not linked against the libC_r.
-=head1 AUTHOR
-
-H.Merijn Brand <h.m.brand@hccnet.nl>
-
-=head1 DATE
+=head1 AUTHORS
-Version 0.0.6: 23 Dec 2002
+Rainer Tammer <tammer@tammer.net>
=cut
https://perl5.git.perl.org / perl5.git / blobdiff