Re: [Gcl-devel] Problems building gcl-2.6.1-18 on Solaris 8 (SPARC)

[Camm Maguire]

John Tang Boyland <address@hidden> writes:

> I removed the last line of the makefile which said that saved_pcl_gcl
> was INTERMEDIATE.  Then I was able to make and then run the code that
> crashed.  It still crashes in "exit", just like before with 3.2.1:
> whatever happened, it doesn't do better in gcc3.3!  It's not exit per
> se, it's exit after registering something as a global destructor
> apparently).  And also it doesn't happen with saved_pre_gcl or saved_gcl,
> only with saved_pcl_gcl.  My guess would that one of the .o's you load
> puts something in the destructor list and either is buggy (nonportable) 
> or there's some bad interaction with the way images are dumped.

I wouldn't expect gcc to matter much, except perhaps accidentally.
This has something to do with your libc, no?  If you suspect the
unexec invoked in dumping the final image, you can also try (bye) from
a 'raw' image, made with 'make raw....gcl'.  Unless I misunderstand
what you mean by destructor list, we don't use any, as GCL is written
atop C, not C++.  Besides, I think the variation in the problem you've
seen (i.e. occurred even with saved_pre_gcl with earlier gcc)
is pretty hard to explain as originating from any single .o file.
Why don't you 'disassemble' from the fault point in gdb, grab the
source to the "dtors" function, and try to figure out what went wrong?
In gdb, one can inspect the contents of registers with 'i reg ...'.
Any maybe try the simple C program calling exit?  GCL only makes use
of atexit on Windows.

Any relevant compiler warnings?

The solaris machine on which I have an account is not available at the
moment.  Kindly remind me in a few days about a solaris ansi build, and
I'll see if I can get one autobuilt.

Take care,


> 
> pabst.cs 287 % ../unixport/saved_pre_gcl
> GCL (GNU Common Lisp)  (2.6.1) Sun Nov  9 22:33:53 CST 2003
> Licensed under GNU Library General Public License
> Dedicated to the memory of W. Schelter
> 
> Use (help) to get some basic information on how to use GCL.
> 
> >(bye)
> pabst.cs 288 % ../unixport/saved_gcl
> GCL (GNU Common Lisp)  (2.6.1) Sun Nov  9 22:59:29 CST 2003
> Licensed under GNU Library General Public License
> Dedicated to the memory of W. Schelter
> 
> Use (help) to get some basic information on how to use GCL.
> 
> >(bye)
> pabst.cs 289 % ../unixport/saved_pcl_gcl
> GCL (GNU Common Lisp)  (2.6.1) Mon Nov 10 13:22:59 CST 2003
> Licensed under GNU Library General Public License
> Dedicated to the memory of W. Schelter
> 
> Use (help) to get some basic information on how to use GCL.
> 
> >(bye)
> 
> Error: Caught fatal error [memory may be damaged]
> Fast links are on: do (si::use-fast-links nil) for debugging
> Error signalled by BYE.
> Broken at BYE.  Type :H for Help.
> >>
> ...
> 
> pabst.cs 291 % gdb ../unixport/saved_pcl_gcl
> GNU gdb 4.17
> Copyright 1998 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you are
> welcome to change it and/or distribute copies of it under certain conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for details.
> This GDB was configured as "sparc-sun-solaris2.6"...
> (gdb) run
> Starting program: 
> /afs/cs.uwm.edu/package/gcl/gcl-2.6.1/common/install/clcs/../unixport/saved_pcl_gcl
>  
> GCL (GNU Common Lisp)  (2.6.1) Mon Nov 10 13:22:59 CST 2003
> Licensed under GNU Library General Public License
> Dedicated to the memory of W. Schelter
> 
> Use (help) to get some basic information on how to use GCL.
> 
> >(bye)
> 
> Program received signal SIGSEGV, Segmentation fault.
> 0x29ea4 in __do_global_dtors_aux ()
> (gdb) where
> #0  0x29ea4 in __do_global_dtors_aux ()
> #1  0x4ddd68 in _fini ()
> #2  0xff19bc94 in _exithandle ()
> #3  0xff21f8d4 in exit ()
> #4  0x2b530 in fLbye (exitc=6593736) at main.c:628
> #5  0x13510c in c_apply_n (fn=0x2b4e8 <fLbye>, n=0, x=0x534008)
>     at funlink.c:270
> ...
> 
> 
> 

-- 
Camm Maguire                                            address@hidden
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"The earth is but one country, and mankind its citizens."  --  Baha'u'llah