[fpc-pascal] FPC 2.6.2 for DOS/Go32V2 FP.EXE cannot run a second time

[Tomas Hajny]

On 30 Sep 13, at 17:47, LubomĂ­r ÄŚabla wrote:

> Attempt to compile IDE:
> 
> OS Windows XP 32 CZ
> FPC GO32V2 2.6.2 is installed in z:\pp
> PATH contains Z:\pp\bin\go32v2
> 
> 1. 29.09.2013 download source package
>    ftp://ftp.freepascal.org/pub/fpc/snapshot/fixes/source/fpc.zip
> 
> 2. unpacked to z:\fpc
> 
> 3. command for compilation:
> 
> Z:\fpc>make rtl_all packages_all ide_all "OPT=-gl -O-" "NOGDB=1" >
> x130930.log
 .
 .
> fprepos.pp(22,3) Fatal: Can't find unit fpmkunit used by fprepos
> 
> even the unit fpmkunit has been compiled (at least I think so) into
> Z:\fpc\packages\fpmkunit\units\go32v2 where are these files:
 .
 .

Yes, sorry - a dependency has been missing in our makefile (triggered 
only for some targets; unfortunately, GO32v2 being one of them). The 
issue is fixed in svn, but I'm not sure if it will still get in 
tonight's source zip file generation.

Tomas



> 
> On Thu, Sep 19, 2013 at 11:07 AM, Tomas Hajny <XHajT03 at hajny.biz> wrote:
> 
> > On Wed, September 18, 2013 20:49, LubomĂ­r ÄŚabla wrote:
> > > I am running pure DOS 7 from Windows 98 US, no drivers, no TSR programs.
> > > Just COMMAND.COM, no AUTOEXEC.BAT and CONFIG.SYS.
> > >
> > > Run
> > >
> > > CWSDPMI -p -x
> > >
> > > DPMI stays in memory, start FP.EXE - again SIGSEGV.
> >  .
> >  .
> >
> > OK, thanks.
> >
> >
> > > Can you tell me where can I download source for IDE from FPC 2.6.2
> > > and how to compile it?
> > >
> > > I will try it when I have a free weekend.
> >
> > See links on http://www.freepascal.org/develop.var - you can e.g. try
> > downloading fpc.zip source package for fixes from FTP. Unpack it somewhere
> > and run:
> >
> > make rtl_all packages_all ide_all "OPT=-gl -O-" "NOGDB=1"
> >
> > That should compile IDE without the debugging support, but that should be
> > sufficient for start. If the problem cannot be replicated that way, the
> > next step would be downloading the pre-compiled libgdb
> > (ftp://ftp.freepascal.org/pub/fpc/contrib/libgdb/v6.1.1/go32v2-v601.zip),
> > creating directory "libgdb" next to "rtl", "ide" and "packages", unpacking
> > content of the downloaded file there and then compiling again using:
> >
> > make clean rtl_all packages_all ide_all "OPT=-gl -O-"
> >
> > If that still works, you could remove the "-O-" bit to see if the
> > optimizations make any difference.
> >
> > Tomas
> >
> >
> >
> > >
> > > On Wed, Sep 18, 2013 at 8:52 AM, Tomas Hajny <XHajT03 at hajny.biz> wrote:
> > >
> > >> On Tue, September 17, 2013 20:57, LubomĂ­r ÄŚabla wrote:
> > >> > FPC 2.6.2 for DOS/Go32V2
> > >> >
> > >> > There is the fatal IDE unstability in FPC 2.6.2 under pure DOS.
> > >> >
> > >> > IDE almost always starts only first time (after installation or
> > >> reboot).
> > >> > I start the IDE, compile and run the program (e.g. Hello.pas) and
> > >> close
> > >> > IDE. But when I want to start IDE again it crashes with SIGSEGV
> > >> message.
> > >> >
> > >> >  Exiting due to signal SIGSEGV
> > >> >  FPC General Protection Fault at eip=006EDE95
> > >> >  eax=65672D6C ebx=0000002A ecx=00000088 edx=00000000 esi=008E91F8
> > >> > edi=0083B504
> > >> >  ebp=008C0CA0 esp=008C0C90 program=C:\PP\BIN\GO32V2\FP.EXE
> > >> >  cs: sel=00A7 base=00400000 limit=008EFFFF
> > >> >  ds: sel=00AF base=00400000 limit=008EFFFF
> > >> >  es: sel=00AF base=00400000 limit=008EFFFF
> > >> >  fs: sel=00C7 base=00000000 limit=0010FFFF
> > >> >  gs: sel=00C7 base=00000000 limit=0010FFFF
> > >> >  ss: sel=00AF base=00400000 limit=008EFFFF
> > >> >
> > >> >  Call frame traceback EIPs:
> > >> >  $006EDE95
> > >> >  $005BD905
> > >> >  $005BCD84
> > >> >  $005BC83D
> > >> >  $005BC7F8
> > >> >  $00308AF8
> > >> >  $0030B9F4
> > >> >  $0002DB50
> > >> >  $0002DC5A
> > >> >  $00002040
> > >> >
> > >> > To be able to start IDE again in DOS I have to reboot the computer.
> > >> > I think IDE set something in memory and warm restart does not erase
> > >> the
> > >> > memory contents.
> > >> >
> > >> > Compilation from command prompt with FPC.EXE works everywhere.
> > >> > But IDE is good for debugging and help.
> > >> >
> > >> > Can someone please help me or advise what I'm doing wrong.
> > >> >
> > >> > The main problem is running IDE in pure DOS.
> > >>
> > >> Which DOS version is it? Is there any DPMI provider running before
> > >> starting the IDE (some DOS versions include DPMI host themselves)?
> > >>
> > >> If there is no other DPMI host (running) and thus CWSDPMI.EXE is used,
> > >> I'd
> > >> recommend starting with a check whether there is just one (the latest)
> > >> CWSDPMI.EXE and just for test purposes try loading it into memory as TSR
> > >> with options "-p -x" (see cwsdpmi.txt included in directory doc\fpc) to
> > >> see if it makes any difference.
> > >>
> > >> Obviously, the next step would be compiling the IDE with debug
> > >> information
> > >> (including -gl) to see where exactly it fails.
> > >>
> > >> Tomas