Gpc February 2000

gpc@gnu.de

29 participants
37 discussions

Unifying error messages
by Peter Gerwinski 20 Feb '00

20 Feb '00

Hello, we are considering to unify error messages concerning parameters. Currently, there are (at least) two types: error with parameter of procedure `Foo' error with parameter to procedure `Foo' Native speakers: Which one shall we use in the future? Peter -- http://home.pages.de/~Peter.Gerwinski/ - G-N-U GmbH: http://www.g-n-u.de Maintainer GNU Pascal - http://home.pages.de/~GNU-Pascal/ - gpc-19990118 GnuPG key fingerprint: 9E7C 0FC4 8A62 5536 1730 A932 9834 65DB 2143 9422 keys: ftp://ftp.gerwinski.de/pub/keys/ - AntiSpam: http://spam.abuse.net

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Problem with sets
by Martin Liddle 18 Feb '00

18 Feb '00

I'm using GPC 19991030. I'm having a problem with the following code fragment: shared_data^.compr[J].awel:=[]; which does not result in awel becoming the null set (it retains its existing values). If I change this to: shared_data^.compr[J].awel:=[1]-[1]; then awel does become the null set. shared_data is a large complicated record. compr is an array of a fairly simple packed record and awel is a set of 1..120. I have tried hard to produce a simple test problem to demonstrate the problem but sadly all my test cases work perfectly. Anybody seen anything similar or any suggestions as to anything else I should investigate? -- Martin Liddle, Tynemouth Computer Services, 27 Garforth Close, Cramlington, Northumberland, England, NE23 6EW. Phone: 01670-712624. Fax: 01670-717324.

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GPC 19991030 on a DEC Alpha OSF machine
by Olivier Lecarme 18 Feb '00

18 Feb '00

I installed GPC 19991030 on top of gcc-2.95.2 on a DEC Alpha machine vith OSF-4.0e. I followed the instructions in the recent FAQ, but I had to comment out lines in gcc/explow.c and gcc/expr.Ã§ as suggested in a previous message by Mason Ip <MasonIp(a)Attachmate.com>. Compiling and installing GPC worked fine, but on trying to compile arrayslicedemo.pas in the demos directory, I get the following error message : arrayslicedemo.pas: In function `program_Arrayslicedemo': arrayslicedemo.pas:82: internal error--unrecognizable insn: (insn 287 285 288 (set (reg:SI 134) (reg:DI 133)) -1 (nil) (nil)) Olivier Lecarme

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RE: gpc 19991030 and gcc 2.95.2
by JMBlakeney 17 Feb '00

17 Feb '00

Our system manager had to use gmake rather than make on our DEC OSF before the compiler would compile. John B -----Original Message----- From: Nicola Girardi [SMTP:girardi@keycomm.it] Sent: 13 February 2000 18:09 To: gpc(a)gnu.de Subject: Re: gpc 19991030 and gcc 2.95.2 << File: ATT00001.att >> On Sun, Feb 13, 2000 at 04:57:32PM +0100, Olivier Lecarme wrote: | I have been suggested to try building the last alpha version of gpc | instead of 19990118, called the current one on the official site. I | tried to build on top of gcc-2.95.2 on a DEC Alpha computer. | | "configure" runs without any warning, and without requiring any to aply | any patch. | | "make LANGUAGES=pascal" terminates prematurely with the following error | message : | | make[1]: *** No rule to make target `pascal', needed by `native'. Stop. | make[1]: Leaving directory `/net2/ciceron2/ol/src/Install/gcc-2.95.2/gcc' | make: *** [all-gcc] Error 2 | | Am I missing something ? Yes. The information supplied with the GPC tarball is outdated, so I get into this trouble once. This is more or less what you have to do: cd /usr/src tar xvfz gcc-2.95.2.tar.gz tar xvfz gpc-19991030.tar.gz mv gpc/p gcc-2.95.2/gcc/ mkdir gcc-2.95.2/gpc cd !$ ../configure And this last command ask you for a patch to apply; just hit enter and that should work. Then: make && make install Have fun!! -- Nicola Girardi <girardi(a)keycomm.it> Key fingerprint = 5D9E ED36 C2E9 EF8F C4B6 25C2 3FF4 E5A2 27A7 83B9 GnuPG Key at http://agnes.dida.physik.uni-essen.de/~nicola/gpg-plan

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RE: GPC on a DEC Alpha
by Mason Ip 16 Feb '00

16 Feb '00

The quote was for Linux 4.1 or 5.0; it was properly not applicable to Dec-UX. I tried to compile GNU Assembler for DEC-UX but GNU binutilsÂ’s configure script said No Go. binutils-2.9.1> ./configure --prefix=/usr/opt/binutils-2.9.1 Configuring for a alpha-dec-osf4.0b host. *** This configuration is not supported in the following subdirectories: gas ld (Any other directories should still work fine.) Created "Makefile" in /usr/users/masonip/tmp/binutils-2.9.1 [snip] So, gas is not available as an alternative assembler on DEC-UX :-( ---------- From: Russ Whitaker [SMTP:russwhit@mind.net] Sent: Wednesday, February 16, 2000 2:35 AM To: gpc(a)gnu.de Subject: Re: GPC on a DEC Alpha Mason Ip wrote: I got the same error : Â“heap.pas:30: module/unit `error' could not be compile.Â” ---------- The following is an exerpt from gcc-2.95.2/install/SPECIFIC " GNU/Linux Alpha EV56 or PCA56 hosts running Red Hat 4.2 or 5.0 may see errors of this sort: Error: Unknown pseudo-op: `.arch' This is a signal that a new assembler is needed if you want to generate BWX insns for your machine.

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GPC woes on ultrasparc II Solaris 2.6
by minnrp01＠holmes.ipfw.edu 16 Feb '00

16 Feb '00

Hello all. I have been having some severe problems with compiling Pascal files on an Ultrasparc II box running Solaris 2.6. The compiler has crashed several times and generated cores. The crashes ranged from seg violations and bus errors, to SIGIOT (signal 6). Some of the crashes seem to result from syntax errors, while other seem to mysteriously vanish. These crashes have occurred with the stable version of GPC(beta? it's dated early 1999) using gcc 2.8.1. I have made sure that this version has been compiled for 32 bit mode. I also have had the signal 10s and 11s occur with gpc-19991030 using gcc 2.95.2. These problems seem to bve specific to this box/OS. I can compile the same code at home on a AMD K6-3 running Linux with a 2.2.13 kernel and the compiler will not crash. Is there something peculiar about setting up or compiling GPC for an Ultrasparc using Solaris 2.6 that I may be missing? Should I submit bug reports since the platform is not listed on the web site? Thanks Russell Minnich minnrp01(a)holmes.ipfw.edu

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RE: GPC on a DEC Alpha
by Mason Ip 16 Feb '00

16 Feb '00

Olivier Lecarme wrote ... > /net/packages/GNU/gcc-2.95.2/gcc/p/rts/error.pas: In function `Geterrormessage': > /net/packages/GNU/gcc-2.95.2/gcc/p/rts/error.pas:365: Internal compiler error in > `copy_to_mode_reg', at gcc-2.95.2/gcc/explow.c:669 > In what direction should I try to understand what occurs, or to repair > it? If you take a look at explow.c:669, you'll see the "offending" line. I made the following changes and managed to compile gpc. Note that these changes were properly not the right ways to fix the code. They were just bypassing the real problems. Please use these changes with your own risk. A) changes to explow.c gcc-2.95.2/gcc> DIFF explow.c.orig explow.c --- explow.c.orig Tue Feb 15 10:30:22 2000 +++ explow.c Tue Feb 15 13:28:02 2000 @@ -662,12 +662,14 @@ /* If not an operand, must be an address with PLUS and MULT so do the computation. */ if (! general_operand (x, VOIDmode)) x = force_operand (x, temp); +/* if (GET_MODE (x) != mode && GET_MODE (x) != VOIDmode) abort (); +*/ if (x != temp) emit_move_insn (temp, x); return temp; } B) changes to expr.c gcc-2.95.2/gcc> DIFF expr.c.orig expr.c --- expr.c.orig Tue Feb 15 17:06:54 2000 +++ expr.c Tue Feb 15 17:09:31 2000 @@ -2587,12 +2587,14 @@ enum machine_mode mode = GET_MODE (x); x = protect_from_queue (x, 1); y = protect_from_queue (y, 0); +/* if (mode == BLKmode || (GET_MODE (y) != mode && GET_MODE (y) != VOIDmode)) abort (); +*/ /* Never force constant_p_rtx to memory. */ if (GET_CODE (y) == CONSTANT_P_RTX) ; else if (CONSTANT_P (y) && ! LEGITIMATE_CONSTANT_P (y))

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Re: sockets, clients and servers
by Clyde Meli 16 Feb '00

16 Feb '00

> I am new to GPC, never used it before, just downloaded it. Pascal is my "old > love", and I would like to use it again. > > I would like to use GPC instead of C++ for a new project. It is a > client-server application, where clients communicate via TCP with the > server. How can I access the sockets library from GPC? Any wrapper libraries > yet? > > Any suggestions,especially examples, welcome. > > Horst > It's been done, but the code would need some 'brushing up' before I send the code to Peter. But I can send you a copy if you want, let me know. Regards, Clyde

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Re: GPC on a DEC Alpha
by Russ Whitaker 16 Feb '00

16 Feb '00

Mason Ip wrote: I got the same error : heap.pas:30: module/unit `error' could not be compile. ---------- The following is an exerpt from gcc-2.95.2/install/SPECIFIC " GNU/Linux Alpha EV56 or PCA56 hosts running Red Hat 4.2 or 5.0 may see errors of this sort: Error: Unknown pseudo-op: `.arch' This is a signal that a new assembler is needed if you want to generate BWX insns for your machine. The version of GCC shipped with Red Hat 4.2 (2.7.0.2) has a fault wherein it will silently generate incorrect code. The version shipped with Red Hat 5.0 (2.8.0.1) is not broken, but required an extra -m21164a argument on the command-line. In order to visibly trap 2.7.0.2, I now issue DEC's .arch pseudo into the assembly. Relieving the problem of mucking with command-line arguments for 2.8.0.1 is a pleasant side effect. If you've got Red Hat 5.0 installed, you may grab binutils 2.9.1 and be happy. If you've got Red Hat 4.2, bugs make it much harder to upgrade pieces on your own, and you are better off upgrading the entire system. In either case, your problem may be bypassed by not emitting BWX code by default. Do this by using configure alphaev5-unknown-linux-gnulibc1 if you have RH 4.2, or configure alphaev5-unknown-linux-gnu if you have RH 5.0. The following error: Error: macro requires $at register while noat in effect also indicates that you should upgrade to a newer version of the assembler, 2.9 or later. If you can not upgrade the assembler, the compiler option "-Wa,-m21164a" may work around this problem. " ---------------------------------------------------------------------------- ----------- Please let me know if this helps - I'll add a paragraph to the faq Thanks Russ <russwhit(a)mind.net>

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sockets, clients and servers
by Horst Herb 16 Feb '00

16 Feb '00

I am new to GPC, never used it before, just downloaded it. Pascal is my "old love", and I would like to use it again. I would like to use GPC instead of C++ for a new project. It is a client-server application, where clients communicate via TCP with the server. How can I access the sockets library from GPC? Any wrapper libraries yet? Any suggestions,especially examples, welcome. Horst

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Gpc February 2000