Re: [Valgrind-users] Valgrind doesn't create readable core dumps

[Mikhail B. <mik...@de...>]

Hello

I see that gdb can't find general purpose registers.
/warning: Couldn't find general-purpose registers in core file.//

/Maybe valgrind adds these registers with some wrong offset?

On 07/14/2015 04:52 PM, Mikhail Baikov wrote:
> Architecture is mipsel. OS is Linux.
> the output of uname -a is
> Linux 192.168.23.55 3.3.8-3.3 #1 SMP Fri Jul 10 10:11:31 MSK 2015 mips 
> GNU/Linux
>
>
> On 07/13/2015 08:28 PM, Ivo Raisr wrote:
>>
>>
>> 2015-07-13 19:17 GMT+02:00 Mikhail Baikov 
>> <mik...@de... <mailto:mik...@de...>>:
>>
>>     Hello.
>>     Is there a possibility to disable signals handling by valgrind?
>>     The core will be created by the system and that will solve the
>>     problem.
>>
>>
>> This is not an option.
>> Run of your program (guest) is simulated by Valgrind (host).
>> Therefore Valgrind itself must create the guest coredump;
>> operating system can only create coredump of Valgrind (host).
>>
>> What is your OS and architecture (for example x86/Linux)?
>>
>> I.
>>
>>
>>     On 07/02/2015 04:11 PM, Mikhail Baikov wrote:
>>>     Hello
>>>
>>>     I've got a problem while reading dumps created by valgrind. I've
>>>     compiled and run this code with valgrind and without it.
>>>     /int main()//
>>>     //{//
>>>     //    const char *str = "segfault";//
>>>     //    *(char *)str = 'a';//
>>>     //    return 1;//
>>>     //}
>>>     /
>>>
>>>     When I read the system created core dump it's readable
>>>     /Core was generated by `./seg'.//
>>>     //Program terminated with signal 11, Segmentation fault.//
>>>     //#0  0x004006d0 in main () at ./seg.c:4/
>>>
>>>     When I try to read the core dump created by valgrind, gdb is
>>>     unable to read it
>>>     /warning: Couldn't find general-purpose registers in core file.//
>>>     //
>>>     //warning: Could not load shared library symbols for 5
>>>     libraries, e.g.
>>>     /bin/valgrind/lib/valgrind/vgpreload_core-mips32-linux.so.//
>>>     //Use the "info sharedlibrary" command to see the complete
>>>     listing.//
>>>     //Do you need "set solib-search-path" or "set sysroot"?//
>>>     //Core was generated by `'.//
>>>     //
>>>     //warning: Couldn't find general-purpose registers in core file.//
>>>     //../../gdb-7.3.1/gdb/frame-unwind.c:133: internal-error:
>>>     frame_unwind_find_by_frame failed//
>>>     //A problem internal to GDB has been detected,//
>>>     //further debugging may prove unreliable./
>>
>>
>
> -- 
> Sincerely
> Mikhail Baikov
>
>
> ------------------------------------------------------------------------------
> Don't Limit Your Business. Reach for the Cloud.
> GigeNET's Cloud Solutions provide you with the tools and support that
> you need to offload your IT needs and focus on growing your business.
> Configured For All Businesses. Start Your Cloud Today.
> https://www.gigenetcloud.com/
>
>
> _______________________________________________
> Valgrind-users mailing list
> Val...@li...
> https://lists.sourceforge.net/lists/listinfo/valgrind-users

-- 
Sincerely
Mikhail Baikov