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IDProjectCategoryView StatusDate SubmittedLast Update
0017909LazarusDebuggerpublic2010-11-11 23:222010-12-12 21:45
ReporterEugen Bolz 
Assigned ToMartin Friebe 
PrioritynormalSeveritymajorReproducibilityalways
StatusclosedResolutionfixed 
Platform64 Bit IntelOSMac OS XOS Version
Product Version0.9.29 (SVN)Product Build 
Target Version0.9.30Fixed in Version0.9.29 (SVN) 
Summary0017909: GDB Exception Message don't shows up
DescriptionIts kinda hard to explain ...

If I raise this exception during debugging: raise EConvertError.Create('test');

Nothing is send to IDE (or something like that).

Steps To ReproduceStart the Demo, the Exception is raised on FormCreate .... and no MessageBox comes up :(
TagsNo tags attached.
Fixed in Revision28640
LazTarget1.0
WidgetsetCarbon
Attached Fileszip file icon Test_Exception_Mac.zip [^] (306,335 bytes) 2010-11-11 23:22
zip file icon mylog.txt.zip [^] (464,394 bytes) 2010-11-18 22:21

- Relationships
has duplicate 0018150closedMartin Friebe IDE ignores Breakpoints in OSX 
related to 0001306closedMarc Weustink Watches dialog freeze 

-  Notes
(0043145)
descent89 (reporter)
2010-11-17 16:40
edited on: 2010-11-17 16:43

 Confirmed on lazarus version 0.9.29 SVN revision 28293 with fpc version 2.4.0 i386-darwin-carbon, Mac OS X Intel 10.6.4

Whenever an exception is thrown, the program keeps running (cannot be stopped, the only thing that works is killall lazarus which also kills the IDE), but NO message or popup is being displayed in the IDE.

Try/Except fails miserably also. There is no workaround I guess.

Marc's opinion "It is not the exception which is the problem, but the retrieval of info about it (what lazarus needs to show you a message). On other systems the used cast works."


More info here http://www.lazarus.freepascal.org/index.php/topic,9102.15.html [^]


<quoting>
Marc
Administrator
Hero Member
*
Posts: 2233
    
sorry, i can't help. fpc.cfg has no influence. It is not the exception which is the problem, but the retrieval of info about it (what lazarus needs to show you a message). On other systems the used cast works. I've only a old mac-mini powerpc, so I cannot test/fix this atm.

</quoting>
(0043203)
Eugen Bolz (reporter)
2010-11-18 21:40

 Hmm I thought it would be working NOW, but it seems it still needs to be fixed :(, sorry

Still hungs up
(0043204)
Martin Friebe (manager)
2010-11-18 21:41

 Resolved, as reporter declared it as fixed.


Could have been rev 28168 there was a StrToIntDef (32bit) instead of StToQWordDef (64bit) in setting up the catching of exceptions (InsertBreakPoint in StartDebugging)
(0043205)
Martin Friebe (manager)
2010-11-18 21:42

 no longer
(0043206)
Martin Friebe (manager)
2010-11-18 21:43

 please recompile with the following defines

DBG_VERBOSE
DBG_VERBOSE_BRKPOINT
DBGMI_QUEUE_DEBUG

and attach a debug log
(0043546)
Martin Friebe (manager)
2010-11-26 11:24
edited on: 2010-11-26 11:25

 Please compile revision 28495 with -dDBG_WITH_TIMEOUT

I added a timeout to the particular command that caused the trouble.

- It should hopefully give you a warning, if it times out.
- The information shown about the exception, may then be incomplete (but hopefully some msg will appear)
- Debugging should continue, but no guarantees can be made about how long it will last.
(0043584)
Eugen Bolz (reporter)
2010-11-26 19:06

 The Debugger just crashes, nothing else happens :(
(0043589)
Martin Friebe (manager)
2010-11-27 01:06

 As of rev 28505 the workaround with -dDBG_WITH_TIMEOUT works

- A warning is given to the user, but the debug-session can be continued.
- The Exception is announced, but the name is unknown
(0043987)
Christian (reporter)
2010-12-04 19:43

 OK it works much better with this workaround, is there an gdb version that works fully in OSX ?
(0043998)
Martin Friebe (manager)
2010-12-04 23:36

 As for not getting the exception classname:
The issue seems to be caused by debugging an app compiled for 32 bit, in a gdb configured for 64 bit. While gdb seems to actually support this, the IDE does not realize that the app is 32 bit, and makes wrong assumptions.

As for the IDE hanging:
The missing prompt (which caused the hang of the IDE) is still an GDB issue. but most likely due to the attempt to use data from a register ($rdi) which is not initialized. So we try to access some bad address. GDB should return an error.
The issue will most likely not be present, if the IDE does detect the 32 bit app correctly. The danger does however remain.
(0044062)
Martin Friebe (manager)
2010-12-07 16:59

 Should be fixed.

Please close if ok.

- Issue History
Date Modified Username Field Change
2010-11-11 23:22 Eugen Bolz New Issue
2010-11-11 23:22 Eugen Bolz Status new => assigned
2010-11-11 23:22 Eugen Bolz Assigned To => Marc Weustink
2010-11-11 23:22 Eugen Bolz File Added: Test_Exception_Mac.zip
2010-11-11 23:22 Eugen Bolz Widgetset => Carbon
2010-11-17 16:40 descent89 Note Added: 0043145
2010-11-17 16:43 descent89 Note Edited: 0043145
2010-11-18 21:17 Eugen Bolz Note Added: 0043201
2010-11-18 21:36 Martin Friebe Assigned To Marc Weustink => Martin Friebe
2010-11-18 21:37 Eugen Bolz Note Deleted: 0043201
2010-11-18 21:40 Eugen Bolz Note Added: 0043203
2010-11-18 21:41 Martin Friebe LazTarget => -
2010-11-18 21:41 Martin Friebe Status assigned => resolved
2010-11-18 21:41 Martin Friebe Fixed in Version => 0.9.29 (SVN)
2010-11-18 21:41 Martin Friebe Resolution open => fixed
2010-11-18 21:41 Martin Friebe Note Added: 0043204
2010-11-18 21:41 Martin Friebe Target Version => 0.9.30
2010-11-18 21:42 Martin Friebe Status resolved => assigned
2010-11-18 21:42 Martin Friebe Resolution fixed => reopened
2010-11-18 21:42 Martin Friebe Note Added: 0043205
2010-11-18 21:43 Martin Friebe Note Added: 0043206
2010-11-18 22:21 Eugen Bolz File Added: mylog.txt.zip
2010-11-26 01:35 Martin Friebe Relationship added related to 0001306
2010-11-26 08:26 Vincent Snijders Fixed in Version 0.9.29 (SVN) =>
2010-11-26 08:26 Vincent Snijders Target Version 0.9.30 =>
2010-11-26 11:24 Martin Friebe Note Added: 0043546
2010-11-26 11:25 Martin Friebe Note Edited: 0043546
2010-11-26 11:25 Martin Friebe Note Edited: 0043546
2010-11-26 19:06 Eugen Bolz Note Added: 0043584
2010-11-27 01:06 Martin Friebe Note Added: 0043589
2010-12-04 19:33 Martin Friebe Relationship added has duplicate 0018150
2010-12-04 19:43 Christian Note Added: 0043987
2010-12-04 23:36 Martin Friebe Note Added: 0043998
2010-12-07 16:59 Martin Friebe Fixed in Revision => 28640
2010-12-07 16:59 Martin Friebe LazTarget - => 1.0
2010-12-07 16:59 Martin Friebe Status assigned => resolved
2010-12-07 16:59 Martin Friebe Fixed in Version => 0.9.29 (SVN)
2010-12-07 16:59 Martin Friebe Resolution reopened => fixed
2010-12-07 16:59 Martin Friebe Note Added: 0044062
2010-12-07 16:59 Martin Friebe Target Version => 0.9.30
2010-12-12 21:45 Eugen Bolz Status resolved => closed

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