[Crash-utility] [PATCH 0/6] gcore: a bug fix and improvements on register restoration for active tasks

[HATAYAMA Daisuke]

Hello Dave,

This patch series for gcore extension module fix a bug and improves
register restoration for active tasks. Could you review these? I'm
going to release these after your review.

In summary,

  - The first patch fixes a bug that a target task context is wrongly
    specified in the process of getting NT_PRSTATUS on vmcore in
    ELF. Without this patch, all the register values but the one of
    the task user mannually specifies are unintensionally equal each
    other.

  - The remainig patches implements register restorement for active
    tasks from exception frame and KVMDUMP notes. By this, register
    values for active tasks can be correctly restored for KDUMP,
    NETDUMP, DISKDUMP and KVMDUMP formats.

Thanks.
HATAYAMA Daisuke