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diff --git a/README.os2 b/README.os2 new file mode 100644 index 0000000000..f56f7eee09 --- /dev/null +++ b/README.os2 @@ -0,0 +1,652 @@ +Current state of the patches here is with respect to perl5.002b1d ;-). + +======================================================== + +The OS/2 patchkit was submitted by ilya@math.ohio-state.edu. I have +applied some parts that I suspect won't cause any problems. +Others do things that I haven't had time to fully consider. + +Still other patches included here should perhaps be integrated with the +metaconfig package that generates Configure. + + Andy Dougherty <doughera@lafcol.lafayette.edu> + +======================================================== + +Notes on the patch: +~~~~~~~~~~~~~~~~~~~ +patches should be applied as + patch -p0 <..... +All the diff.* files and POSIX.mkfifo should be applied. + +Additional files are available on + ftp://ftp.math.ohio-state.edu/pub/users/ilya/os2 +including patched pdksh and gnumake, needed for build. + + +Target: +~~~~~~~ + +This is not supposed to make a perfect Perl on OS/2. This patch is +concerned only with perfect _build_ of Perl on OS/2. Some good +features from Andreas Kaiser port missed this port. However, most of +the features are available in different form. + +!!! Note that [gs]etpriority functions in this port are compatible +!!! with *nix, not with ak's port!!! + +The priorities are absolute, go from 32 to -95, lower is quickier. 0 +is default, + +Notes on build on OS/2: +~~~~~~~~~~~~~~~~~~~~~~~ +The change of C code in this patch is based on the ak port of 5.001+. + +a) Make sure your sort is not the broken OS/2 one, and that you have /tmp +on the build partition. + +b) when extracting perl5.*.tar.gz you need to extract perl5.*/Configure +separately, since by default perl5.001m/configure may overwrite it; + like this: + tar vzxf perl5.004.tar.gz --case-sensitive perl5.004/Configure + +c) Necessary manual intervention when compiling on OS/2: + + Need to put perl.dll on LIBPATH after it is created. + +d) Compile summary: + ~~~~~~~~~~~~~~~ +!!! At the end of this README is independent description of the build +!!! process by Rocco Caputo. + +# Look for hints/os2.sh and correct what is different on your system +# I have rather spartan configuration. + + # Prefix means where to install: +sh Configure -des -D prefix=f:/perl5.005 + # Ignore the message about missing `ln', and about `c' option + # to tr. +make + # Will probably die after build of miniperl (unless you have DLL + # from previous compile). Need to move DLL where it belongs + # + # Somehow with 5.002b3 I needed to type another make after pod2man +make + # some warnings in POSIX.c +make test + # some tests fail, 9 or 10 on my system (see the list at end). + # + # before this you should create subdirs bin and lib in the + # prefix directory (f:/perl5.005 above): + # + # To run finer tests, cd t && perl harness +make install + +e) At the end of August GNU make and pdksh were too buggy for compile. +Both maintainers have patches that make it possible to compile perl. +The binaries are included in + ftp://ftp.math.ohio-state.edu/pub/users/ilya/os2 +patches are available too. +Note that the pdksh5.2.4 broke builds with -Zexe option because of a +changed order of executable extensions. A patch is sent to +maintainer. The version 5.2.5alpha was OK for the build, + +!!!!!!!!!!!!!!!!! +If you see that some '/' became '\' in pdksh 5.2.3, you did not apply +my patches! +Same with segfaults in Make 3.74. +!!!!!!!!!!!!!!!!! + +Problems reported: + +a) one of the latest tr is broken, get an old one :-( + 1.11 works. (On compuserver?) +b) You need a link386. +c) Get rid of invalid perl.dll on your LIBPATH. + +Note the EMX does not support en_us locale (most nobody does ;-). Some +TCP/IP update could have installed it to your config.sys. You need to +delete it until EMX is updated to support this newest discovery by IBM. + + +Send comments to ilya@math.ohio-state.edu. + +====================================================== +Requires 0.9b (well, provision are made to make it build under 0.9a6, +but they are not tested, please inform me on success). +(earlier than 0.9b ttyname was not present, it is hard to maintain this +difference automatically, though I try). +====================================================== + +Building with a.out style is supported by the `perl_' target of make. +Dynamic extensions are not possible with perl_.exe, since boot code +should return the retvalue on stack, the address of which is not known +to the extension. + +The reason why compiling with a.out style executables leads to problems +with dynamic extensions is: + a) OS/2 does not export symbols from executables; + b) Thus if extension needs to import symbols from an application + the symbols for the application should reside in a .dll. + c) You cannot export data from a .dll compiled with a.out style. +On the other hand, aout-style compiled extension enjoys all the +(dis)advantages of fork(). + +Check A.OUT compile with the following make targets: + + aout_test + aout_install + aout_clean + +====================================================== +Tests which fail with OMF compile: + +io/fs.t: 2-5, 7-11, 18 as they should. +io/pipe: all, since open("|-") is not working (works with perl_.exe). +lib/"all the dbm".t: 1 test should fail (file permission). +op/fork all fail, as they should (except with perl_.exe) +op/stat 3 20 35 as they should, 39 (-t on /dev/null) ???? Sometimes 4 +- timing problem ???? + +Sometimes I have seen segfault in socket ????, only if run with Testing tools. + +A lot of `bad free'... in databases, bug in DB confirmed on other +platforms. + +Fail: Total 30 subtests (if stat:4 fails) in 10 scripts (one of 10 +is socket, which runs OK standalone). With newer configs I could not +reproduce most the crashes. + +======================================================= + +Changes to calls to external programs: +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Due to a popular demand the perl +external program calling has been changed. _If_ perl needs to call an +external program _via shell_, the X:/bin/sh.exe will be called. The +name of the shell is not overridable, except the drive letter. + +Thus means that you need to pickup some copy of a sh.exe as well (I use one +from pdksh). The drive X: above is set up automatically during the +build, is settable in runtime from $ENV{PERL_SH_DRIVE}. + +Reasons: a consensus on perl5-porters was that perl should use one +non-overridable shell per platform. The obvious choices for OS/2 are cmd.exe +and sh.exe. Having perl build itself would be impossible with cmd.exe as +a shell, thus I picked up sh.exe. Thus assures almost 100% compatibility +with the scripts coming from *nix. + +Disadvantages: sh.exe calls external programs via fork/exec, and there is +_no_ functioning exec on OS/2. exec is emulated by EMX by asyncroneous call +while the caller waits for child completion (to pretend that pid did +not change). This means that 1 _extra_ copy of sh.exe is made active via +fork/exec, which may lead to some resources taken from the system. + +The long-term solution proposed on p5-p is to have a directive + use OS2::Cmd; +which will override system(), exec(), ``, and open(,' |'). With current +perl you may override only system(), readpipe() - the explicit version +of ``, and maybe exec(). The code will substitute a one-argument system +by CORE::system('cmd.exe', '/c', shift). + +If you have some working code for OS2::Cmd.pm, please send it to me, +I will include it into distribution. I have no need for such a module, so +cannot test it. + +=================================================== + +OS/2 extensions +~~~~~~~~~~~~~~~ +Since binaries cannot go into perl distribution, no extensions are +included. They are available in .../os2/ilyaz directory of CPAN, as +well as in my directory + ftp://ftp.math.ohio-state.edu/pub/users/ilya/os2 + +I include 3 extensions by Andread Kaiser, OS2::REXX, OS2::UPM, and OS2::FTP, +into my ftp directory, mirrored on CPAN. I made +some minor changes needed to compile them by standard tools. I cannot +test UPM and FTP, so I will appreciate your feedback. Other extensions +there are OS2::ExtAttribs, OS2::PrfDB for tied access to EAs and .INI +files - and maybe some other extensions at the time you read it. + +Note that OS2 perl defines 2 pseudo-extension functions +OS2::Copy::copy and DynaLoader::mod2fname. + +The -R switch of older perl is deprecated. If you need to call a REXX code +which needs access to variables, include the call into a REXX compartment +created by + REXX_call {...block...}; + +Two new functions are supported by REXX code, + REXX_eval 'string'; + REXX_eval_with 'string', REXX_function_name => \&perl_sub_reference; + +If you have some other extensions you want to share, send the code to me. +Two jump to mind: tied access to EA's, and tied access to system databases. + +================================================================== +== == +== User report [my comments in brackets, IZ] == +== == +================================================================== + +Starting in x:/usr/src, using 4OS2/32 2.5 as the command interpreter on +OS/2 2.30 with FixPak-17. DAX is installed, but this shouldn't be a +factor. Drive X is a TVFS virtual drive pointing to several physical +HPFS drives. + +>>> Make sure that no copies or perl are currently running. Miniperl + may fail during the build because it will find an older version + of perl.dll loaded in memory. + + Close any running perl scripts. + Shut down anything that might run perl scripts, like cron. + `emxload -l` to check for loaded versions of perl. + `emxload -u perl.exe` to unload them. + +>>> Pre-load some common utilities: + + emxload -e sh.exe make.exe ls.exe tr.exe id.exe sed.exe + SET GCCLOAD=30 (number of minutes to hold the compiler) +[grep egrep fgrep cat rm uniq basename uniq sort - are not bad too.] + The theory is that it's faster to demand-load the development tools + from virtual memory than it is to re-load and re-link them all the + time. This is definitely true with my system because swapfile.dat + is on a faster drive than my development environment. + + ls, tr, and id represent the GNU file, text, and shell utilities. + These may not be needed, but it makes sure that their respective + DLLs are in memory. + +>>> Unpack the perl 5_002_01 archive onto an HPFS partition. + + tar vxzf perl5_002_01.tar-gz + cd perl5.002_01 + +[Do not forget to extract Configure as described above.] + +>>> Read the README, keeping a copy open in another session for reference. + + start /c /fg less os2/README + +>>> Apply the OS/2 patches included with 5.002_01, as per the README. + + for %m in (os2\diff.*) patch -p0 < %m + patch -p0 < os2\POSIX.mkfifo + +[The patch below is already applied.] + +>>> You may need to apply this patch if you plan to run a non-standard + Configure (that is, if you defy the README). This patch will ensure + that Makefile inherits the libraries specified during Configure. + People running standard perl builds can probably ignore this patch. + +*** os2\Makefile.SHs Mon Mar 25 02:05:00 1996 +--- os2\Makefile.SHs.new Fri May 24 10:37:10 1996 +*************** +*** 9,15 **** + emximp -o perl.imp perl5.def + + perl.dll: $(obj) perl5.def perl$(OBJ_EXT) +! $(LD) $(LDDLFLAGS) -o $@ perl$(OBJ_EXT) $(obj) -lsocket perl5.def + + perl5.def: perl.linkexp + echo "LIBRARY 'Perl' INITINSTANCE TERMINSTANCE" > $@ +--- 9,15 ---- + emximp -o perl.imp perl5.def + + perl.dll: $(obj) perl5.def perl$(OBJ_EXT) +! $(LD) $(LDDLFLAGS) -o $@ perl$(OBJ_EXT) $(obj) $(libs) perl5.def + + perl5.def: perl.linkexp + echo "LIBRARY 'Perl' INITINSTANCE TERMINSTANCE" > $@ +*************** +*** 49,55 **** + cat perl.exports perl.map | sort | uniq -d | sed -e 's/\w\+/ "\0"/' > perl.linkexp + + perl.map: $(obj) perl$(OBJ_EXT) miniperlmain$(OBJ_EXT) +! $(CC) $(LARGE) $(CLDFLAGS) $(CCDLFLAGS) -o dummy.exe miniperlmain$(OBJ_EXT) perl$(OBJ_EXT) $(obj) -lsocket -lm -Zmap -Zlinker /map + awk '{if ($$3 == "") print $$2}' <dummy.map | sort | uniq > perl.map + rm dummy.exe dummy.map + +--- 49,55 ---- + cat perl.exports perl.map | sort | uniq -d | sed -e 's/\w\+/ "\0"/' > perl.linkexp + + perl.map: $(obj) perl$(OBJ_EXT) miniperlmain$(OBJ_EXT) +! $(CC) $(LARGE) $(CLDFLAGS) $(CCDLFLAGS) -o dummy.exe miniperlmain$(OBJ_EXT) perl$(OBJ_EXT) $(obj) $(libs) -Zmap -Zlinker /map + awk '{if ($$3 == "") print $$2}' <dummy.map | sort | uniq > perl.map + rm dummy.exe dummy.map + +>>> Apply the patches from Ilya's perl5.002_01 binary distribution: + + touch os2/dlfcn.h os2/dl_os2.c + patch -p1 < f:\perllib\README.fix1 + +>>> Run Configure. Most people can run it by following the README: + + sh Configure -des -D prefix=f:/usr/local + + Advanced perl users (experienced C programmers, recommended) can run + the interactive Configure and answer the questions. When in doubt + about an answer, check the EMX headers and documentation. Pick the + default answer if that doesn't help: + + sh Configure + +[Yet more advanced users just specify the answers on the command line +of Configure, like I did with prefix.] + + Note: You may need to wrap an answer in quotes if it contains + spaces. For example, "-lsocket -lm". + + Note: If you want to add some options to a long default, you can + use $* to include the default in your answer: "$* -DDEBUGGING". + + Configure warnings and errors, and possible work-arounds: + + I don't know where 'ln' is.... + (ignored; OS/2 doesn't have a ln command) + + nm didn't seem to work right. Trying emxomfar instead... + (nothing to worry about) + + The recommended value for $d_shrplib on this machine was "define"! + (kept the recommended value: y) + + Directory f:/usr/lib/perl5/os2/5.00201/CORE doesn't exist. + (created the directory from another window with + \usr\bin\mkdir -p f:/usr/lib/perl5/os2/5.00201/CORE + and then answered: y. Your directory may look different.) + +[Ignore this as well, install script will create it for you.] + + The recommended value for $i_dlfcn on this machine was "define"! + (kept the recommended value: y) + + The recommended value for $d_fork on this machine was "undef"! + (kept the recommended value: y) + + Figuring out the flag used by open() for non-blocking I/O... + Seems like we can use O_NONBLOCK. + This seems to be used for informative purposes only. + The errors that follow this (including a SIGPIPE) don't seem + to affect perl at all. These were safely ignored. + + What pager is used on your system? [/usr/ucb/more] + Had to answer "/usr/bin/less.exe" because Configure wants a + leading / (unix full path). Need to edit config.sh later with + the real full path to the pager, including the drive letter. + +[Apparently this setting is never used, so it is safe to ignore it.] + + Hmm... F:/USR/BIN/sed: Unterminated `s' command + Perl built fine even with this error, so it seems safe to + ignore. + + Things I did different from the defaults. Most (if not all) of these + are optional changes. They're listed here to show how good Configure + is at detecting the system setup. + +[I add the options to put it on command line of Configure, see below.] + + Selected 'none' for the man1 location. + (I prefer the pod2html version.) +[-D man1dir=none] + Selected 'none' for the man3 location. + (I prefer the pod2html version.) +[-D man3dir=none] + Changed the hostname and domain. + (I wanted to override a dynamic PPP address. This only + matters if other people will be using your perl build.) +[-D myhostname=my_host_name -D mydomain=.foo.org] + Fixed the e-mail address. + (Put in a known working e-mail address. This only matters + if other people will be using your perl build.) +[-D cf_email=root@myhostname.uucp] + Added some directories to the library search path. +[-D "libpth=f:/emx/lib/st f:/emx/lib"] + Added -g to the optimizer/debugger flags. +[-D optimize=-g] + Added "-lgdbm -ldb -lcrypt -lbsd" to the additional libraries. +[ -D "libs=-lsocket -lcrypt -lgdbm" + the rest of libraries will not be used] + +>>> Advanced users may want to edit config.sh when prompted by Configure. + Most (all?) of these changes aren't really necessary: + + d_getprior='define' + d_setprior='define' + (getpriority and setpriority are included in os2.c, but + Configure doesn't know to look there.) +[fixed already] + pager='f:/usr/bin/less.exe' + (Correcting Configure's insistence on a leading slash.) + bin_sh='f:/usr/bin/sh.exe' + (If Configure detects sh.exe somewhere else first. Example: + it saw sh.exe at /bin/sh.exe on my TVFS drive, but I want + perl to look for it on the physical F drive.) + aout_ccflags='... existing flags... -DDEBUGGING' + aout_cppflags='... existing flags... -DDEBUGGING' + (If you want to include DEBUGGING for the aout version.) +[Do not do it, -D optimize=-g will automatically add these flags.] + +>>> Allow Configure to make the build scripts. + +>>> Allow Configure to run `make depend`. Ignore the following warning: + + perl.h:861: warning: `DEBUGGING_MSTATS' redefined +[corrected now] + +>>> Rename any existing perl.dll, preventing anything from loading it and + saving a known working copy in case something goes wrong: + + mv /usr/lib/perl.dll /usr/lib/ilya-perl.dll + +>>> Run `make`, and ignore the following warnings: + + perl.h:861: warning: `DEBUGGING_MSTATS' redefined +[corrected now] + invalid preprocessing directive name + emxomf warning: Cycle detected by make_type + LINK386 : warning L4071: application type not specified; assuming WINDOWCOMPAT + Warning (will try anyway): No library found for -lposix + Warning (will try anyway): No library found for -lcposix + POSIX.c:203: warning: `mkfifo' redefined + POSIX.c:4603: warning: assignment makes pointer from integer without a cast + +>>> If `make` dies while "Making DynaLoader (static)", you'll need to + put miniperl in the OS/2 paths. This step is only necessary if `make` + can't find miniperl: +[I would be interested if somebody confirmes this.] + + cp perl.dll /usr/lib (where /usr/lib is in your LIBPATH) + cp miniperl.exe /usr/bin (where /usr/bin is in your PATH) + make (ignore the errors in the previous step) + + This should run to completion. + +>>> Test the build: + + make test + + These tests fail: + + io/fs..........FAILED on test 2 + + "OS/2 is not unix". Test 2 checks the link() command, which + is not supported by OS/2. + + io/pipe........f:/usr/bin/sh.exe: -c requires an argument + f:/usr/bin/sh.exe: -c requires an argument + The Unsupported function fork function is unimplemented at + io/pipe.t line 26. + FAILED on test 1 + + More "OS/2 is not unix" errors. Read ahead to find out + why fork() fails. + + op/exec........FAILED on test 4 + + if (system "true") {print "not ok 4\n";} else \ + {print "ok 4\n";} + + This fails for me, but changing it to read like this works: + + if (system '\usr\bin\true.cmd') {print "not ok 4\n";} \ + else {print "ok 4\n";} + + So you can count this as another "OS/2 is not unix". + + op/fork........The Unsupported function fork function is \ + unimplemented at op/fork.t line 8. + FAILED on test 1 + + The dynamically-loaded version of perl currently doesn't + support fork(). This is a known behavior of EMX. + + op/magic....... + Process terminated by SIGINT + ok + + The test passed even with the SIGINT message. I don't + know why, but I won't argue. + + op/stat........ls: /dev: No such file or directory + f:/usr/bin/sh.exe: ln: not found + ls: perl: No such file or directory + FAILED on test 3 + + "OS/2 is not unix". We don't have the ln command. + + lib/anydbm.....Bad free() ignored at lib/anydbm.t line 51. + Bad free() ignored at lib/anydbm.t line 51. + Bad free() ignored at lib/anydbm.t line 51. + Bad free() ignored during global destruction. + Bad free() ignored during global destruction. + Bad free() ignored during global destruction. + FAILED on test 2 + + Test 2 looks at the file permissions for a database. "OS/2 + is not unix" so the permissions aren't exactly what this test + expects. + + lib/db-btree...Bad free() ignored at lib/db-btree.t line 109. + Bad free() ignored at lib/db-btree.t line 221. + Bad free() ignored at lib/db-btree.t line 337. + Bad free() ignored at lib/db-btree.t line 349. + Bad free() ignored at lib/db-btree.t line 349. + Bad free() ignored at lib/db-btree.t line 399. + Bad free() ignored at lib/db-btree.t line 400. + Bad free() ignored at lib/db-btree.t line 401. + FAILED on test 20 + + Another file permissions test fails. + + lib/db-hash....Bad free() ignored at lib/db-hash.t line 101. + Bad free() ignored at lib/db-hash.t line 101. + Bad free() ignored at lib/db-hash.t line 101. + Bad free() ignored at lib/db-hash.t line 239. + Bad free() ignored at lib/db-hash.t line 239. + Bad free() ignored at lib/db-hash.t line 239. + Bad free() ignored at lib/db-hash.t line 253. + Bad free() ignored at lib/db-hash.t line 253. + Bad free() ignored at lib/db-hash.t line 253. + FAILED on test 16 + + Another file permissions test fails. + + lib/db-recno...Bad free() ignored at lib/db-recno.t line 138. + Bad free() ignored at lib/db-recno.t line 138. + FAILED on test 18 + + Another file permissions test fails. + + lib/gdbm.......FAILED on test 2 + + Another file permissions test fails. + + lib/sdbm.......FAILED on test 2 + + Another file permissions test fails. + + Failed 11/94 tests, 88.30% okay. + + All of which are known differences with unix or documented + behaviors in EMX. I re-run the test with Ilya's version, + and the same tests fail. This new build is a success. +[Note that bad free() mentioned above are bugs in the Berkeley +DB. They just are more visible under OS/2 with perl free(), because of +"rigid" function name resolution. + To get finer tests, cd to ./t and run + perl harness +] + + (Actually, Ilya's perl release fails an extra test because I don't + have sed in f:\emx.add. This shows how important it is to configure + and build perl yourself instead of grabbing pre-built binaries.) +[Hmm, should not happen... There is no mentions of full_sed under ./t +directory...] + +>>> Cross your fingers and install it: + + make install + + Warnings encountered and workarounds presented.: + + WARNING: You've never run 'make test'!!! (Installing anyway.) + (Lies! All lies! At least it still installs.) + + WARNING: Can't find libperl*.dll* to install into \ + f:/usr/lib/perl5/os2/5.00201/CORE. (Installing other things anyway.) + (Safe to ignore. The important one, libperl.lib, gets copied.) + + Couldn't copy f:/usr/bin/perl5.00201.exe to f:/usr/bin/perl.exe: \ + No such file or directory + cp /usr/bin/perl5.00201.exe /usr/bin/perl.exe + + Couldn't copy f:/usr/bin/perl.exe to /usr/bin/perl.exe: No such \ + file or directory + (I think this one is safe to ignore since the two directories + point to the same place.) + +>>> Laugh maniacally because you just built and installed your own copy + of perl, with all the paths set "just so" and with whatever little + psychotic modifications you've always wanted but were afraid to add. + +----------------------------------------------------------------------------- + +Development tools and versions: + + EMX 0.9b with emxfix04 applied. + + `ls --version` reports: 'GNU file utilities 3.12' + `tr --version` reports: 'tr - GNU textutils 1.14' + `id --version` reports: 'id - GNU sh-utils 1.12' + + `sed --version` reports: 'GNU sed version 2.05' + `awk --version` reports: 'Gnu Awk (gawk) 2.15, patchlevel 6' + `grep --version` reports an illegal option and: 'GNU grep version 2.0' + (this includes egrep) + + `sort --version` reports: 'sort - GNU textutils 1.14' + `uniq --version` reports: 'uniq - GNU textutils 1.14' + `find --version` reports: 'GNU find version 4.1' + + KSH_VERSION='@(#)PD KSH v5.2.4 96/01/17' + (Ilya's patched version.) + + `make --version` reports: 'GNU Make version 3.74' + (Ilya's patched version.) + + `emxrev` reports: + EMX : revision = 42 + EMXIO : revision = 40 + EMXLIBC : revision = 40 + EMXLIBCM : revision = 43 + EMXLIBCS : revision = 43 + EMXWRAP : revision = 40 + +----------------------------------------------------------------------------- + +Rocco +<troc@shadow.net> + |