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Setting breakpoint in KEXT while debugging
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Setting breakpoint in KEXT while debugging

  • Subject: Setting breakpoint in KEXT while debugging
  • From: sheetal phirke <email@hidden>
  • Date: Wed, 15 Dec 2010 18:25:59 +0530 (IST)
Hi All,


I am using 2 machines for debugging. I have set the basic debugger. now I want to set breakpoint in one of the function in KEXT.

I am using following command:

<<
break  'com_apple_dts_driver_PanicDriver::start(IOService* provider)'

Function "com_apple_dts_driver_PanicDriver::start(IOService* provider)" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 ('com_apple_dts_driver_PanicDriver::start(IOService* provider)') pending.
>>

& when I continue I get 

<<
Program received signal SIGTRAP, Trace/breakpoint trap.
0x01333091 in ?? ()
>>

& the program doesn't continue or step again...

does the breakpoint is not set? or what is the problem...

I am following  ""Two- Machine debugging article from 
http://developer.apple.com/library/mac/#documentation/DeviceDrivers/Conceptual/WritingDeviceDriver/DebuggingDrivers/DebuggingDrivers.html

I am failed in step 4 "Target create symbol file" since "-l & -s are unrecognized options for  kextload".


Thanks & Regards,
Sheetal.


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