Re: Base NSScanner/GSFormat issues - segmentation fault

[Riccardo Mottola]

Hi,

Fred Kiefer wrote:
> To me this sounds like a compiler issue. The best you can do is get clang to 
> create assembler output (-S for gcc, most likely it is the same) and pass the 
> result for this small function on to David. As a workaround you may try to 
> extend your little hack to cover NSScanner.m as well. That is:

A compiler issue carrying over a long time... and happens only on this 
laptop? I wonder... but if we can confirm it is that, I will try to work 
with David with that.


> NSScanner.m_FILE_FILTER_OUT_FLAGS = -O%

I did that and I still get a segmentation fault, but in a different place.

#0  0xb75a4932 in -[NSTimer 
initWithFireDate:interval:target:selector:userInfo:repeats:] 
(self=0x84f5424,
    _cmd=0xb788f404 <objc_selector_list+552>, fd=0x0, ti=30, 
object=0x84e99c4, selector=0x0, info=0x0, f=1 '\001')
    at NSTimer.m:120
#1  0xb757425f in +[NSRunLoop _runLoopForThread:] (self=<optimized out>, 
_cmd=<optimized out>, aThread=<optimized out>)
    at NSRunLoop.m:784
#2  0xb75742c5 in +[NSRunLoop currentRunLoop] (self=<optimized out>, 
_cmd=<optimized out>) at NSRunLoop.m:811
#3  0xb7573fff in +[NSRunLoop initialize] (self=0x81096f0, 
_cmd=0x8090918) at NSRunLoop.m:747
#4  0xb7290c58 in objc_send_initialize () from 
/System/Library/Libraries/libobjc.so.4.6
#5  0xb729cb58 in slowMsgLookup () from 
/System/Library/Libraries/libobjc.so.4.6
#6  0xb72a2b11 in objc_msgSend () from 
/System/Library/Libraries/libobjc.so.4.6
#7  0xb438a084 in -[XGServer(EventOps) setupRunLoopInputSourcesForMode:] 
(self=<optimized out>, _cmd=<optimized out>,
    mode=<optimized out>) at XGServerEvent.m:227
#8  0xb4389003 in -[XGServer initWithAttributes:] (self=<optimized out>, 
_cmd=<optimized out>, info=<optimized out>)
    at XGServer.m:480
#9  0xb7cd0c44 in +[GSDisplayServer serverWithAttributes:] 
(self=<optimized out>, _cmd=<optimized out>,
    attributes=<optimized out>) at GSDisplayServer.m:181
#10 0xb7b65a8f in -[NSApplication _init] (self=0x83be424, 
_cmd=0xb7ea0b50 <objc_selector_list+32>) at NSApplication.m:892
#11 0xb753bc13 in -[NSObject performSelector:withObject:] 
(self=<optimized out>, _cmd=<optimized out>,
    aSelector=<optimized out>, anObject=<optimized out>) at NSObject.m:2024
#12 0xb75a42ac in -[NSObject(NSThreadPerformAdditions) 
performSelector:onThread:withObject:waitUntilDone:modes:] (
    self=<optimized out>, _cmd=<optimized out>, aSelector=<optimized 
out>, aThread=0x82fe384, anObject=<optimized out>,
    aFlag=<optimized out>, anArray=<optimized out>) at NSThread.m:2164
#13 0xb75a3e34 in -[NSObject(NSThreadPerformAdditions) 
performSelectorOnMainThread:withObject:waitUntilDone:modes:] (
    self=<optimized out>, _cmd=<optimized out>, aSelector=<optimized 
out>, anObject=<optimized out>,
    aFlag=<optimized out>, anArray=<optimized out>) at NSThread.m:2119
#14 0xb75a3e7c in -[NSObject(NSThreadPerformAdditions) 
performSelectorOnMainThread:withObject:waitUntilDone:] (
    self=<optimized out>, _cmd=<optimized out>, aSelector=<optimized 
out>, anObject=<optimized out>,
    aFlag=<optimized out>) at NSThread.m:2130
#15 0xb7b66088 in -[NSApplication init] (self=<optimized out>, 
_cmd=<optimized out>) at NSApplication.m:986
#16 0xb7b659fe in +[NSApplication sharedApplication] (self=<optimized 
out>, _cmd=<optimized out>) at NSApplication.m:858
#17 0xb7b4d347 in NSApplicationMain (argc=<optimized out>, 
argv=<optimized out>) at Functions.m:78
#18 0x0804b220 in main (argc=<optimized out>, argv=<optimized out>, 
env=<optimized out>) at main.m:33


Riccardo