[Crash-utility] [PATCH] kmem: Show a page's _mapcount value in dump_mem_map()

[Dave Anderson]

----- Original Message -----
> 
> 
> ----- Original Message -----
> > On Fri 2015-04-10 14:47 -0400, Dave Anderson wrote:
> > > Maybe an option could be added for use with "kmem -p" only, that supplies
> > > a comma-separated list of desired fields, i.e., something like:
> > > 
> > >   crash> kmem -p -m member1,member2,member3
> > > 
> > > At least then you could get exactly what you want, and specify how you
> > > want it served.
> > 
> > I'll work on this.
> > 
> > Thanks,
> > 
> > --
> > Aaron Tomlin
> > 
> 
> OK, nice.
> 
> BTW, I updated the pstruct.c extension module so that it compiles again.
> 
> And tinkering around with it, I notice that it restricts the structure member
> output to only TYPE_CODE_INT and TYPE_CODE_PTR types, but the gdb "printm"
> command that it uses returns data for all of the member types.
> 
> Thanks,
>   Dave

Hi Aaron,

I can envision the basic structure member data gathering functionality used in 
Qiao's pstruct.c module as being useful in more ways than just this proposed
"kmem -p" enhancement.  So I've adapted it into a new generic utility 
function named fill_struct_member_data().  Check it out here:

  https://github.com/crash-utility/crash/commit/b4970528b2f8ba4129e9eac4ac0d53a60dfbcaf1

Dave