debugging a callq command

Mahmood Naderan via gdb gdb@sourceware.org
Fri Jul 6 13:08:00 GMT 2018


Right. Something happened in callq. 

Thank you very much.

Regards,
Mahmood 




    On Friday, July 6, 2018, 4:18:39 PM GMT+4:30, Pedro Alves <palves@redhat.com> wrote:  
 
 On 07/06/2018 12:32 PM, Mahmood Naderan via gdb wrote:
something else while the program receives seg fault.

Are you maybe confusing stepi with nexti?  nexti steps over the call
instruction, and then it sounds like something crashes within the
called routine at 0x7fffffffde70.  Try "stepi" to follow the full
instruction flow instead, and it will probably crash at the same
instruction.

Thanks,
Pedro Alves
  


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