[Crash-utility] How to fire crash command from extension directly

[Vivek Satpute]

Cool.. :-) Great.. Thanks a lot Dave.
My task has become too much easier now :-)


Thanks again,
Vivek

On Tue, Feb 19, 2013 at 9:05 PM, Dave Anderson <anderson at redhat.com> wrote:

>
>
> ----- Original Message -----
> > Hi Dave,
> >
> >
> > Thank you so much for responding to the query.
> >
> >
> > If its printing backtrace then calling back_trace() would suffice.
> > But I have few global structures that can be printed in crash by
> > just their name.
> > e.g. struct xyz object; Where its member is "int i"
> > Above declaration is global so in crash I can simply dump its
> > contents as below (provided object symbols are loaded in crash)
> > crash> object <ENTER>
> > object = {
> > i = 0;
> > }
> >
> > So I want to achieve same thing via crash extension as I have too
> > many structures that I want to dump.
> > Any suggestions how it can be achieved ?
>
> Get the address of "object" xyz structure with:
>
>   address = symbol_value("object");
>
> and then either dump the complete structure with:
>
>   dump_struct("xyx", address, RADIX(16));
>
> or just the "i" member with:
>
>   dump_struct_member("xyz.i", address, RADIX(16));
>
> You can use RADIX(10) to dump non-pointer values in decimal, or pass 0
> in the 3rd argument to utilize whatever the current hex/dec radix output
> format is set.
>
> Dave
>
>
>
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