Re: problem with gnustep on OpenBSD sparc64 -- the journey goes on

[Sebastian Reitenbach]

On Thursday, July 7, 2011 11:02 CEST, David Chisnall <theraven@sucs.org> wrote: 
 
> On 7 Jul 2011, at 09:56, Wolfgang Lux wrote:
> 
> > ... and here. The sizeof_type callback expects an argument with type size_t 
> > *, but &element_size has type int *. This does work on 32-bit architectures 
> > where sizeof(size_t) = sizeof(int) and it works coincidentally on 
> > low-endian 64-bit architectures like x86_64, but is definitely wrong for 
> > big-endian 64-bit machines like sparc.
> 
> 
> Ugh - obvious bug that I completely missed, thanks.  It's fixed in svn, and I 
> had a look at all of the other places where that pattern is used.  They all 
> use size_t correctly.  Thanks for looking at that, and many thanks to 
> Sebastian for testing on SPARC64.  I really should get my USii out of the 
> attic and test GNUstep stuff on it...

I updated libobjc from svn, and starting i.e. addressmanager now I get some 
steps further, but I run into this bus error:


$ gdb AddressManager                                                            
                                                                                
                                                                       
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Type "show copying" to see the conditions.
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This GDB was configured as "sparc64-unknown-openbsd4.9"...
(gdb) r
Starting program: /usr/local/bin/AddressManager 

Program received signal SIGBUS, Bus error.
round_up (v=0xfffffffffffe0e8c, b=8) at encoding2.c:138
138             if (*v % b)
(gdb) bt
#0  round_up (v=0xfffffffffffe0e8c, b=8) at encoding2.c:138
#1  0x0000000205bb2730 in -[NSUnarchiver decodeValueOfObjCType:at:] 
(self=0x219d0f910, _cmd=0x205f55f08, type=0x205d46f80 
"{_NSRect={_NSPoint=dd}{_NSSize=dd}}", address=0xfffffffffffe0fa0) at 
NSUnarchiver.m:854
#2  0x0000000205a738cc in -[NSCoder decodeRect] (self=0x219d0f910, 
_cmd=0x20c6d2cc0) at NSCoder.m:251
#3  0x000000020c340440 in -[GSNibItem initWithCoder:] (self=0x208cbf810, 
_cmd=0x205fc2188, aCoder=0x219d0f910) at GSGormLoading.m:528
#4  0x0000000205bb211c in -[NSUnarchiver decodeValueOfObjCType:at:] 
(self=0x219d0f910, _cmd=0x205f32df8, type=0x205d4a820 "@", 
address=0xfffffffffffe1328) at NSUnarchiver.m:657
#5  0x0000000205a040f4 in -[GSDictionary initWithCoder:] (self=0x208b25810, 
_cmd=Variable "_cmd" is not available.
) at GSDictionary.m:178
#6  0x0000000205bb211c in -[NSUnarchiver decodeValueOfObjCType:at:] 
(self=0x219d0f910, _cmd=0x20c6d2c20, type=0x20c493938 "@", address=0x208b24a18) 
at NSUnarchiver.m:657
#7  0x000000020c33e100 in -[GSNibContainer initWithCoder:] (self=0x208b24a10, 
_cmd=Variable "_cmd" is not available.
) at GSGormLoading.m:420
#8  0x0000000205bb211c in -[NSUnarchiver decodeValueOfObjCType:at:] 
(self=0x219d0f910, _cmd=0x205f55f08, type=0x205d4a820 "@", 
address=0xfffffffffffe17b8) at NSUnarchiver.m:657
#9  0x0000000205a739f0 in -[NSCoder decodeObject] (self=0x219d0f910, 
_cmd=0x20c6f16a0) at NSCoder.m:216
#10 0x000000020c376e68 in -[GSGormLoader 
loadModelData:externalNameTable:withZone:] (self=0x206adfc70, _cmd=Variable 
"_cmd" is not available.
) at GSGormLoader.m:114
#11 0x000000020c220d0c in -[NSNib 
instantiateNibWithExternalNameTable:withZone:] (self=0x20df8ead0, 
_cmd=0x20c5ca2a0, externalNameTable=0x200b29a90, zone=0x205fdc6a0) at 
NSNib.m:153
#12 0x000000020c170db0 in +[NSBundle(NSBundleAdditions) 
loadNibFile:externalNameTable:withZone:] (self=0x205f4c800, _cmd=0x20c5ca3b0, 
fileName=0x20bdeff10, context=0x200b29a90, zone=0x205fdc6a0) at 
NSBundleAdditions.m:236
#13 0x000000020c1706c8 in -[NSBundle(NSBundleAdditions) 
loadNibFile:externalNameTable:withZone:] (self=0x204cebf90, _cmd=0x20c5ca2f0, 
fileName=Variable "fileName" is not available.
) at NSBundleAdditions.m:342
#14 0x000000020c170cb8 in +[NSBundle(NSBundleAdditions) loadNibNamed:owner:] 
(self=0x205f4c800, _cmd=0x20c5a78f8, aNibName=0x204cf0790, owner=0x20df39c10) 
at NSBundleAdditions.m:277
#15 0x000000020c11f26c in NSApplicationMain (argc=Variable "argc" is not 
available.
) at Functions.m:81
#16 0x0000000000101b0c in _start ()
#17 0x0000000000101b0c in _start ()
Previous frame identical to this frame (corrupt stack?)
(gdb) frame 0
#0  round_up (v=0xfffffffffffe0e8c, b=8) at encoding2.c:138
138             if (*v % b)
(gdb) print v
$1 = (size_t *) 0xfffffffffffe0e8c
(gdb) print *v
$2 = 2
(gdb) print b
$3 = 8
(gdb) print *v % b
$4 = 2
(gdb)

> 
> David
> 
> -- Sent from my IBM 1620
>