bugGNUstep - Bugs: bug #28552, NSClassFromString changes to...

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bug #28552: NSClassFromString changes to +initialize in NSMapTable causes SIGSEGV

Submitter:  Tim Käck <tkack>
Submitted:  Mon 11 Jan 2010 11:35:02 AM UTC
   
 
Category:  Base/Foundation Severity:  3 - Normal
Item Group:  Bug Status:  Fixed
Privacy:  Public Assigned to:  FredKiefer
Open/Closed:  Closed
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Mon 11 Jan 2010 12:17:41 PM UTC, comment #1: 

this can be closed. Fred fixed in NSConcreteMapTable with rev 29259

Tim Käck <tkack>
Mon 11 Jan 2010 11:35:02 AM UTC, original submission:  

I updated to r29256 and nothing runs since NSAutoReleasePool creates a maptable and hence causes this problem.
Reverting back and instead use:
@class        NSConcreteMapTable;
....
concreteClass = [NSConcreteMapTable class];

in NSMapTable.m works.
I am not using clang.
GDB Backtrace:

Program received signal SIGSEGV, Segmentation fault.
NSCreateMapTableWithZone (k=..., v=..., capacity=0, zone=0xb7fc3300) at NSConcreteMapTable.m:464
(gdb) bt
#0  NSCreateMapTableWithZone (k=..., v=..., capacity=0, zone=0xb7fc3300) at NSConcreteMapTable.m:464
#1  0xb7db5525 in NSCreateMapTable (keyCallBacks=..., valueCallBacks=..., capacity=0) at NSConcreteMapTable.m:418
#2  0xb7e9aa5a in +[NSString initialize] (self=0xb7fab820, _cmd=0xb7fc36a8) at NSString.m:590
#3  0xb7c8d722 in ?? () from /usr/lib/libobjc.so.2
#4  0xb7c8d6a4 in ?? () from /usr/lib/libobjc.so.2
#5  0xb7c8d8ac in objc_msg_lookup () from /usr/lib/libobjc.so.2
#6  0xb7e3fbd4 in NSClassFromString (aClassName=0xb7f8ebe0) at NSObjCRuntime.m:108
#7  0xb7e2ee27 in +[NSMapTable initialize] (self=0xb7f8ea60, _cmd=0xb7fc36a8) at NSMapTable.m:58
#8  0xb7c8d722 in ?? () from /usr/lib/libobjc.so.2
#9  0xb7c8d6a4 in ?? () from /usr/lib/libobjc.so.2
#10 0xb7c8d8cc in objc_msg_lookup () from /usr/lib/libobjc.so.2
#11 0xb7db54a7 in NSCreateMapTableWithZone (k=..., v=..., capacity=0, zone=0xb7fc3300) at NSConcreteMapTable.m:442
#12 0xb7db5525 in NSCreateMapTable (keyCallBacks=..., valueCallBacks=..., capacity=0) at NSConcreteMapTable.m:418
#13 0xb7e424fc in +[NSObject initialize] (self=0xb7f946e0, _cmd=0xb7fc36a8) at NSObject.m:1004
#14 0xb7c8d722 in ?? () from /usr/lib/libobjc.so.2
#15 0xb7c8d6a4 in ?? () from /usr/lib/libobjc.so.2
#16 0xb7c8d8cc in objc_msg_lookup () from /usr/lib/libobjc.so.2
#17 0x080487d2 in main (argc=1, argv=0xbfffeee4) at simpletest.m:4

Tim Käck <tkack>

 

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  • -email is unavailable- added by FredKiefer (Updated the item)
  • -email is unavailable- added by tkack (Submitted the item)
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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2010-01-11 FredKiefer StatusNone Fixed
        Assigned toNone FredKiefer
        Open/ClosedOpen Closed

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