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129 | .\" ======================================================================== | |
130 | .\" | |
131 | .IX Title "PERLAIX 1" | |
132 | .TH PERLAIX 1 "2006-01-07" "perl v5.8.8" "Perl Programmers Reference Guide" | |
133 | .SH "NAME" | |
134 | README.aix \- Perl version 5 on IBM Unix (AIX) systems | |
135 | .SH "DESCRIPTION" | |
136 | .IX Header "DESCRIPTION" | |
137 | This document describes various features of \s-1IBM\s0's Unix operating | |
138 | system (\s-1AIX\s0) that will affect how Perl version 5 (hereafter just Perl) | |
139 | is compiled and/or runs. | |
140 | .Sh "Compiling Perl 5 on \s-1AIX\s0" | |
141 | .IX Subsection "Compiling Perl 5 on AIX" | |
142 | When compiling Perl, you must use an \s-1ANSI\s0 C compiler. \s-1AIX\s0 does not ship | |
143 | an \s-1ANSI\s0 compliant C\-compiler with \s-1AIX\s0 by default, but binary builds of | |
144 | gcc for \s-1AIX\s0 are widely available. | |
145 | .PP | |
146 | At the moment of writing, \s-1AIX\s0 supports two different native C compilers, | |
147 | for which you have to pay: \fBxlC\fR and \fBvac\fR. If you decide to use either | |
148 | of these two (which is quite a lot easier than using gcc), be sure to | |
149 | upgrade to the latest available patch level. Currently: | |
150 | .PP | |
151 | .Vb 2 | |
152 | \& xlC.C 3.1.4.10 or 3.6.6.0 or 4.0.2.2 or 5.0.2.9 or 6.0.0.3 | |
153 | \& vac.C 4.4.0.3 or 5.0.2.6 or 6.0.0.1 | |
154 | .Ve | |
155 | .PP | |
156 | note that xlC has the \s-1OS\s0 version in the name as of version 4.0.2.0, so | |
157 | you will find xlC.C for \s-1AIX\-5\s0.0 as package | |
158 | .PP | |
159 | .Vb 1 | |
160 | \& xlC.aix50.rte 5.0.2.0 or 6.0.0.3 | |
161 | .Ve | |
162 | .PP | |
163 | subversions are not the same \*(L"latest\*(R" on all \s-1OS\s0 versions. For example, | |
164 | the latest xlC\-5 on aix41 is 5.0.2.9, while on aix43, it is 5.0.2.7. | |
165 | .PP | |
166 | Perl can be compiled with either \s-1IBM\s0's \s-1ANSI\s0 C compiler or with gcc. | |
167 | The former is recommended, as not only can it compile Perl with no | |
168 | difficulty, but also can take advantage of features listed later that | |
169 | require the use of \s-1IBM\s0 compiler-specific command-line flags. | |
170 | .PP | |
171 | The \s-1IBM\s0's compiler patch levels 5.0.0.0 and 5.0.1.0 have compiler | |
172 | optimization bugs that affect compiling perl.c and regcomp.c, | |
173 | respectively. If Perl's configuration detects those compiler patch | |
174 | levels, optimization is turned off for the said source code files. | |
175 | Upgrading to at least 5.0.2.0 is recommended. | |
176 | .PP | |
177 | If you decide to use gcc, make sure your installation is recent and | |
178 | complete, and be sure to read the Perl \s-1README\s0 file for more gcc-specific | |
179 | details. Please report any hoops you had to jump through to the development | |
180 | team. | |
181 | .Sh "\s-1OS\s0 level" | |
182 | .IX Subsection "OS level" | |
183 | Before installing the patches to the \s-1IBM\s0 C\-compiler you need to know the | |
184 | level of patching for the Operating System. \s-1IBM\s0's command 'oslevel' will | |
185 | show the base, but is not always complete (in this example oslevel shows | |
186 | 4.3.NULL, whereas the system might run most of 4.3.THREE): | |
187 | .PP | |
188 | .Vb 6 | |
189 | \& # oslevel | |
190 | \& 4.3.0.0 | |
191 | \& # lslpp -l | grep 'bos.rte ' | |
192 | \& bos.rte 4.3.3.75 COMMITTED Base Operating System Runtime | |
193 | \& bos.rte 4.3.2.0 COMMITTED Base Operating System Runtime | |
194 | \& # | |
195 | .Ve | |
196 | .PP | |
197 | The same might happen to \s-1AIX\s0 5.1 or other \s-1OS\s0 levels. As a side note, perl | |
198 | cannot be built without bos.adt.syscalls and bos.adt.libm installed | |
199 | .PP | |
200 | .Vb 4 | |
201 | \& # lslpp -l | egrep "syscalls|libm" | |
202 | \& bos.adt.libm 5.1.0.25 COMMITTED Base Application Development | |
203 | \& bos.adt.syscalls 5.1.0.36 COMMITTED System Calls Application | |
204 | \& # | |
205 | .Ve | |
206 | .Sh "Building Dynamic Extensions on \s-1AIX\s0" | |
207 | .IX Subsection "Building Dynamic Extensions on AIX" | |
208 | \&\s-1AIX\s0 supports dynamically loadable objects as well as shared libraries. | |
209 | Shared libraries by convention end with the suffix .a, which is a bit | |
210 | misleading, as an archive can contain static as well as dynamic members. | |
211 | For perl dynamically loaded objects we use the .so suffix also used on | |
212 | many other platforms. | |
213 | .PP | |
214 | Note that starting from Perl 5.7.2 (and consequently 5.8.0) and \s-1AIX\s0 4.3 | |
215 | or newer Perl uses the \s-1AIX\s0 native dynamic loading interface in the so | |
216 | called runtime linking mode instead of the emulated interface that was | |
217 | used in Perl releases 5.6.1 and earlier or, for \s-1AIX\s0 releases 4.2 and | |
218 | earlier. This change does break backward compatibility with compiled | |
219 | modules from earlier perl releases. The change was made to make Perl | |
220 | more compliant with other applications like Apache/mod_perl which are | |
221 | using the \s-1AIX\s0 native interface. This change also enables the use of \*(C+ | |
222 | code with static constructors and destructors in perl extensions, which | |
223 | was not possible using the emulated interface. | |
224 | .Sh "The \s-1IBM\s0 \s-1ANSI\s0 C Compiler" | |
225 | .IX Subsection "The IBM ANSI C Compiler" | |
226 | All defaults for Configure can be used. | |
227 | .PP | |
228 | If you've chosen to use vac 4, be sure to run 4.4.0.3. Older versions | |
229 | will turn up nasty later on. For vac 5 be sure to run at least 5.0.1.0, | |
230 | but vac 5.0.2.6 or up is highly recommended. Note that since \s-1IBM\s0 has | |
231 | removed vac 5.0.2.1 through 5.0.2.5 from the software depot, these | |
232 | versions should be considered obsolete. | |
233 | .PP | |
234 | Here's a brief lead of how to upgrade the compiler to the latest | |
235 | level. Of course this is subject to changes. You can only upgrade | |
236 | versions from ftp-available updates if the first three digit groups | |
237 | are the same (in where you can skip intermediate unlike the patches | |
238 | in the developer snapshots of perl), or to one version up where the | |
239 | \&\*(L"base\*(R" is available. In other words, the \s-1AIX\s0 compiler patches are | |
240 | cumulative. | |
241 | .PP | |
242 | .Vb 2 | |
243 | \& vac.C.4.4.0.1 => vac.C.4.4.0.3 is OK (vac.C.4.4.0.2 not needed) | |
244 | \& xlC.C.3.1.3.3 => xlC.C.3.1.4.10 is NOT OK (xlC.C.3.1.4.0 is not available) | |
245 | .Ve | |
246 | .PP | |
247 | .Vb 23 | |
248 | \& # ftp ftp.software.ibm.com | |
249 | \& Connected to service.boulder.ibm.com. | |
250 | \& : welcome message ... | |
251 | \& Name (ftp.software.ibm.com:merijn): anonymous | |
252 | \& 331 Guest login ok, send your complete e-mail address as password. | |
253 | \& Password: | |
254 | \& ... accepted login stuff | |
255 | \& ftp> cd /aix/fixes/v4/ | |
256 | \& ftp> dir other other.ll | |
257 | \& output to local-file: other.ll? y | |
258 | \& 200 PORT command successful. | |
259 | \& 150 Opening ASCII mode data connection for /bin/ls. | |
260 | \& 226 Transfer complete. | |
261 | \& ftp> dir xlc xlc.ll | |
262 | \& output to local-file: xlc.ll? y | |
263 | \& 200 PORT command successful. | |
264 | \& 150 Opening ASCII mode data connection for /bin/ls. | |
265 | \& 226 Transfer complete. | |
266 | \& ftp> bye | |
267 | \& ... goodbye messages | |
268 | \& # ls -l *.ll | |
269 | \& -rw-rw-rw- 1 merijn system 1169432 Nov 2 17:29 other.ll | |
270 | \& -rw-rw-rw- 1 merijn system 29170 Nov 2 17:29 xlc.ll | |
271 | .Ve | |
272 | .PP | |
273 | On \s-1AIX\s0 4.2 using xlC, we continue: | |
274 | .PP | |
275 | .Vb 16 | |
276 | \& # lslpp -l | fgrep 'xlC.C ' | |
277 | \& xlC.C 3.1.4.9 COMMITTED C for AIX Compiler | |
278 | \& xlC.C 3.1.4.0 COMMITTED C for AIX Compiler | |
279 | \& # grep 'xlC.C.3.1.4.*.bff' xlc.ll | |
280 | \& -rw-r--r-- 1 45776101 1 6286336 Jul 22 1996 xlC.C.3.1.4.1.bff | |
281 | \& -rw-rw-r-- 1 45776101 1 6173696 Aug 24 1998 xlC.C.3.1.4.10.bff | |
282 | \& -rw-r--r-- 1 45776101 1 6319104 Aug 14 1996 xlC.C.3.1.4.2.bff | |
283 | \& -rw-r--r-- 1 45776101 1 6316032 Oct 21 1996 xlC.C.3.1.4.3.bff | |
284 | \& -rw-r--r-- 1 45776101 1 6315008 Dec 20 1996 xlC.C.3.1.4.4.bff | |
285 | \& -rw-rw-r-- 1 45776101 1 6178816 Mar 28 1997 xlC.C.3.1.4.5.bff | |
286 | \& -rw-rw-r-- 1 45776101 1 6188032 May 22 1997 xlC.C.3.1.4.6.bff | |
287 | \& -rw-rw-r-- 1 45776101 1 6191104 Sep 5 1997 xlC.C.3.1.4.7.bff | |
288 | \& -rw-rw-r-- 1 45776101 1 6185984 Jan 13 1998 xlC.C.3.1.4.8.bff | |
289 | \& -rw-rw-r-- 1 45776101 1 6169600 May 27 1998 xlC.C.3.1.4.9.bff | |
290 | \& # wget ftp://ftp.software.ibm.com/aix/fixes/v4/xlc/xlC.C.3.1.4.10.bff | |
291 | \& # | |
292 | .Ve | |
293 | .PP | |
294 | On \s-1AIX\s0 4.3 using vac, we continue: | |
295 | .PP | |
296 | .Vb 10 | |
297 | \& # lslpp -l | grep 'vac.C ' | |
298 | \& vac.C 5.0.2.2 COMMITTED C for AIX Compiler | |
299 | \& vac.C 5.0.2.0 COMMITTED C for AIX Compiler | |
300 | \& # grep 'vac.C.5.0.2.*.bff' other.ll | |
301 | \& -rw-rw-r-- 1 45776101 1 13592576 Apr 16 2001 vac.C.5.0.2.0.bff | |
302 | \& -rw-rw-r-- 1 45776101 1 14133248 Apr 9 2002 vac.C.5.0.2.3.bff | |
303 | \& -rw-rw-r-- 1 45776101 1 14173184 May 20 2002 vac.C.5.0.2.4.bff | |
304 | \& -rw-rw-r-- 1 45776101 1 14192640 Nov 22 2002 vac.C.5.0.2.6.bff | |
305 | \& # wget ftp://ftp.software.ibm.com/aix/fixes/v4/other/vac.C.5.0.2.6.bff | |
306 | \& # | |
307 | .Ve | |
308 | .PP | |
309 | Likewise on all other \s-1OS\s0 levels. Then execute the following command, and | |
310 | fill in its choices | |
311 | .PP | |
312 | .Vb 5 | |
313 | \& # smit install_update | |
314 | \& -> Install and Update from LATEST Available Software | |
315 | \& * INPUT device / directory for software [ vac.C.5.0.2.6.bff ] | |
316 | \& [ OK ] | |
317 | \& [ OK ] | |
318 | .Ve | |
319 | .PP | |
320 | Follow the messages ... and you're done. | |
321 | .PP | |
322 | If you like a more web-like approach, a good start point can be | |
323 | http://www14.software.ibm.com/webapp/download/downloadaz.jsp and click | |
324 | \&\*(L"C for \s-1AIX\s0\*(R", and follow the instructions. | |
325 | .Sh "The usenm option" | |
326 | .IX Subsection "The usenm option" | |
327 | If linking miniperl | |
328 | .PP | |
329 | .Vb 1 | |
330 | \& cc -o miniperl ... miniperlmain.o opmini.o perl.o ... -lm -lc ... | |
331 | .Ve | |
332 | .PP | |
333 | causes error like this | |
334 | .PP | |
335 | .Vb 8 | |
336 | \& ld: 0711-317 ERROR: Undefined symbol: .aintl | |
337 | \& ld: 0711-317 ERROR: Undefined symbol: .copysignl | |
338 | \& ld: 0711-317 ERROR: Undefined symbol: .syscall | |
339 | \& ld: 0711-317 ERROR: Undefined symbol: .eaccess | |
340 | \& ld: 0711-317 ERROR: Undefined symbol: .setresuid | |
341 | \& ld: 0711-317 ERROR: Undefined symbol: .setresgid | |
342 | \& ld: 0711-317 ERROR: Undefined symbol: .setproctitle | |
343 | \& ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more information. | |
344 | .Ve | |
345 | .PP | |
346 | you could retry with | |
347 | .PP | |
348 | .Vb 3 | |
349 | \& make realclean | |
350 | \& rm config.sh | |
351 | \& ./Configure -Dusenm ... | |
352 | .Ve | |
353 | .PP | |
354 | which makes Configure to use the \f(CW\*(C`nm\*(C'\fR tool when scanning for library | |
355 | symbols, which usually is not done in \s-1AIX\s0. | |
356 | .PP | |
357 | Related to this, you probably should not use the \f(CW\*(C`\-r\*(C'\fR option of | |
358 | Configure in \s-1AIX\s0, because that affects of how the \f(CW\*(C`nm\*(C'\fR tool is used. | |
359 | .Sh "Using \s-1GNU\s0's gcc for building perl" | |
360 | .IX Subsection "Using GNU's gcc for building perl" | |
361 | Using gcc\-3.x (tested with 3.0.4, 3.1, and 3.2) now works out of the box, | |
362 | as do recent gcc\-2.9 builds available directly from \s-1IBM\s0 as part of their | |
363 | Linux compatibility packages, available here: | |
364 | .PP | |
365 | .Vb 1 | |
366 | \& http://www.ibm.com/servers/aix/products/aixos/linux/ | |
367 | .Ve | |
368 | .Sh "Using Large Files with Perl" | |
369 | .IX Subsection "Using Large Files with Perl" | |
370 | Should yield no problems. | |
371 | .Sh "Threaded Perl" | |
372 | .IX Subsection "Threaded Perl" | |
373 | Threads seem to work \s-1OK\s0, though at the moment not all tests pass when | |
374 | threads are used in combination with 64\-bit configurations. | |
375 | .PP | |
376 | You may get a warning when doing a threaded build: | |
377 | .PP | |
378 | .Vb 1 | |
379 | \& "pp_sys.c", line 4640.39: 1506-280 (W) Function argument assignment between types "unsigned char*" and "const void*" is not allowed. | |
380 | .Ve | |
381 | .PP | |
382 | The exact line number may vary, but if the warning (W) comes from a line | |
383 | line this | |
384 | .PP | |
385 | .Vb 1 | |
386 | \& hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype); | |
387 | .Ve | |
388 | .PP | |
389 | in the \*(L"pp_ghostent\*(R" function, you may ignore it safely. The warning | |
390 | is caused by the reentrant variant of \fIgethostbyaddr()\fR having a slightly | |
391 | different prototype than its non-reentrant variant, but the difference | |
392 | is not really significant here. | |
393 | .Sh "64\-bit Perl" | |
394 | .IX Subsection "64-bit Perl" | |
395 | If your \s-1AIX\s0 is installed with 64\-bit support, you can expect 64\-bit | |
396 | configurations to work. In combination with threads some tests might | |
397 | still fail. | |
398 | .Sh "\s-1AIX\s0 4.2 and extensions using \*(C+ with statics" | |
399 | .IX Subsection "AIX 4.2 and extensions using with statics" | |
400 | In \s-1AIX\s0 4.2 Perl extensions that use \*(C+ functions that use statics | |
401 | may have problems in that the statics are not getting initialized. | |
402 | In newer \s-1AIX\s0 releases this has been solved by linking Perl with | |
403 | the libC_r library, but unfortunately in \s-1AIX\s0 4.2 the said library | |
404 | has an obscure bug where the various functions related to time | |
405 | (such as \fItime()\fR and \fIgettimeofday()\fR) return broken values, and | |
406 | therefore in \s-1AIX\s0 4.2 Perl is not linked against the libC_r. | |
407 | .SH "AUTHOR" | |
408 | .IX Header "AUTHOR" | |
409 | H.Merijn Brand <h.m.brand@xs4all.nl> | |
410 | .SH "DATE" | |
411 | .IX Header "DATE" | |
412 | Version 0.0.6: 23 Dec 2002 |