[M3devel] Ubuntu problems

[Tony Hosking]

It may be slightly trickier than that, since appropriately sized  
jmpbuf/ucontext needs to be declared.

On Dec 15, 2007, at 9:14 PM, Jay wrote:

> Maybe time to grab a BSD setjmp/longjmp or getcontext/setcontext,  
> rename by prepending with m3_, and be done with it??
> e.g.
> http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/arch/i386/sys/ 
> getcontext.S?rev=1.2&content-type=text/x-cvsweb-markup
> http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/arch/powerpc/sys/ 
> getcontext.S?rev=1.3&content-type=text/x-cvsweb-markup
>
> My goodness, none of FreeBSD, OpenBSD, NetBSD have web searchable  
> CVS archives..
> better links later..
>
> Regarding upgrade.sh, well, on Windows upgrade.cmd works. :)
> They are all "just" wrappers around cd'ing and building, but  
> perhaps not trivial.
>
>  - Jay
>
>
> > Date: Sun, 16 Dec 2007 02:38:03 +0100
> > From: dabenavidesd at yahoo.es
> > To: mika at async.caltech.edu; m3devel at elegosoft.com
> > CC: mika at camembert.async.caltech.edu
> > Subject: Re: [M3devel] Ubuntu problems
> >
> > Hi Mika,
> > what are you seeing is the problem of libc
> > setjmp/longjmp issue that we maybe have to advise more
> > to cm3 users, and in general *m3 (dec-src,pm3,ezm3,and
> > cm3 too) users that () user level thread
> > implementation which is part of m3core is not working
> > at this moment, so until community can make a
> > functioning a new implementation, we will use only
> > PTHREAD implementation on most new Linux
> > distributions.
> > Of course this solves the problems you are noticing,
> > so my advise in order to this do not happen any more
> > is write a note on the Download Area and maybe also in
> > (like a note in the Known issues), www.modula3.org
> > (If you allow me, I can do it)
> >
> > The most common case I know a (not very recent) of
> > distribution that works with user level implementation
> > that I use is Ubuntu Dapper 6.06, the libray is 2.3.6
> > http://packages.ubuntu.com/dapper/libdevel/libc6-dev
> > The next version of Ubuntu breaks when the Juno
> > package is compiling (pkl-fonts program executes), the
> > library libc6 is
> > http://packages.ubuntu.com/edgy/libdevel/libc6-dev.
> >
> > So for 5.4 sources use use the next CM3 variable
> > export CM3="/usr/local/cm3/bin/cm3 -DPTHREAD"
> >
> > This enable the system level thread implementation in
> > a earlier version of it (of cvs), but in the first
> > step bootstrap compiler you will ran in same problems
> > (in Edgy I got breack when running pkl-fonts, but
> > after that break you can re-compile it all well with
> > no problems, after you have build the new m3core).
> > If you can update the sources with the most recent (in
> > a personal opinion, stable version) would be better,
> > but here I would like to know if the script upgrade.sh
> > can do that work, i have not use it.
> > For me the most easy way for me was use the
> > instruction given by Tony for the cvs version, from I
> > take his words and make a relatively simple
> > instructions.
> >
> > Thanks
> >
> >
> >
> >
> >
> >
> > --- Mika Nystrom <mika at async.caltech.edu> wrote:
> >
> > > Hello Modula-3 people,
> > >
> > > I am trying to build things with CM3 on a relatively
> > > recent Ubuntu
> > > system (don't ask me why...) and I am running into a
> > > segfault that
> > > I haven't seen mentioned before. I have a feeling
> > > it has something
> > > to do with stack formats, but I'm not sure what to
> > > do next.
> > >
> > > I downloaded the cm3-5.4.0 binaries and started with
> > > that. The
> > > compiler in the binary distribution runs, but it
> > > appears to produce
> > > garbage. I first tried bootstrapping but it crashes
> > > the moment it
> > > tries to execute something it has compiled itself.
> > > So then I tried
> > > hello, world, with the same results...
> > >
> > > Here's the system identification:
> > >
> > > mika at edwards:~/test/src$ uname -a
> > > Linux edwards 2.6.20-16-386 #2 Sun Sep 23 19:47:10
> > > UTC 2007 i686 GNU/Linux
> > >
> > > I made a "hello, world" program as follows:
> > >
> > > MODULE Main;
> > > IMPORT IO;
> > >
> > > BEGIN IO.Put("Hello, world!\n") END Main.
> > >
> > > Compiled with cm3 directly from the distributed
> > > cm3-5.4.0 for
> > > LINUXLIBC6 and I get a crash in CsetjmpASM.s (as far
> > > as I can tell).
> > > The last unclobbered stack I seem to be able to get
> > > in m3gdb is
> > > this:
> > >
> > > Breakpoint 5, 0xb75e5fb4 in _setjmp () at
> > > ../src/C/LINUXLIBC6/CsetjmpASM.s:31
> > > 31 in ../src/C/LINUXLIBC6/CsetjmpASM.s
> > > (m3gdb) where
> > > #0 0xb75e5fb4 in _setjmp () at
> > > ../src/C/LINUXLIBC6/CsetjmpASM.s:31
> > > #1 0xb75dbd51 in RTThread__Transfer
> > > (from=0xbfe28530, to=0xbfe28530) at
> > > ../src/runtime/LINUXLIBC6/RTThreadC.c:14
> > > #2 0xb75dbaed in FlushStackCache () at
> > > RTThread.m3:65
> > > #3 0xb75e27c9 in DetermineContext (oldSP=Invalid
> > > C/C++ type code 35 in symbol table.
> > > ) at ThreadPosix.m3:1101
> > > #4 0xb75e270d in InitTopContext (c=Invalid C/C++
> > > type code 30 in symbol table.
> > > ) at ThreadPosix.m3:1076
> > > #5 0xb75e4325 in Init () at ThreadPosix.m3:1498
> > > #6 0xb75c9592 in InitRuntime (p_argc=Invalid C/C++
> > > type code 39 in symbol table.
> > > ) at RTLinker.m3:59
> > > #7 0x08048861 in main (argc=1, argv=0xbfe28824,
> > > envp=0xbfe2882c) at _m3main.mc:3
> > > (m3gdb) cont
> > > Continuing.
> > >
> > > Program received signal SIGSEGV, Segmentation fault.
> > > 0xa8dbaede in ?? ()
> > >
> > > s.sp was lately 16_b75af6b9, if that means anything
> > > at all.
> > >
> > > Oh yes, one more thing: setting LD_POINTER_GUARD to
> > > 0 before running
> > > the program has no effect on the crash.
> > >
> > > Any suggestions for how one might make progress on
> > > this?
> > >
> > > Mika
> > >
> >
> >
> >
> >
> > ______________________________________________
> > ¿Chef por primera vez?
> > Sé un mejor Cocinillas.
> > http://es.answers.yahoo.com/info/welcome
>
>
> Don't get caught with egg on your face. Play Chicktionary! Check it  
> out!