[M3devel] Ubuntu problems

[Jay]

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-markuphttp://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
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