[Crash-utility] Make note information human readable when help -D

[Dave Anderson]

> On 12/18/2014 05:07 AM, Dave Anderson wrote:
>> OK thanks -- although further testing showed that the patch needed a bit
>> more work
>> in netdump.c to prevent calling display_ELF_note() if:
>>
>> (1) the architecture is not x86 or x86-64
>> (2) the note type is not NT_PRSTATUS or QEMU, because it would also
>> erroneously pass
>>      pointers to other note types such as NT_PRPSINFO and NT_TASKSTRUCT.
>>
>> Queued for crash-7.1.0:
>>
>>    https://github.com/crash-utility/crash/commit/e36a1eb28b30c12deb72ffc515747801facae913
>
>
> Hello Dave,
>
> I found something is missing in the committed patch. In dump_Elf64_Nhdr,
> qemu note of X86
> is not available to call display_ELF_note. The process is like below:
>
> if (BITS32() && type == NT_PRSTATUS)
> 	display_ELF_note
> else
> 	if (machine_type("X86_64"))
> 		display_ELF_note
>
> And about the fix, please check the attachment.
>
> --
> Regards
> Qiao Nuohan

Hi Qiao,

OK, thanks, I wasn't even able to test that scenario.

Anyway, I will be out of the office until Monday January 5th, and
won't be doing any crash maintenance until then.

Thanks,
  Dave