Re: [RFC] Let "gcore" command accept a suffix argument

[Stan Shebs <stan@codesourcery.com>]

Hui Zhu wrote:
> On Wed, Dec 16, 2009 at 03:20, Tom Tromey <tromey@redhat.com> wrote:
>   
>>>>>>> ">" == Hui Zhu <teawater@gmail.com> writes:
>>>>>>>               
>>>> Agree with you.  Add " with variable make it oddness.
>>>> What about change it to others, like:
>>>> eval echo {++$a}
>>>>         
>>>> Or add " to simple string, like:
>>>> eval echo ++$a".core"
>>>> Or
>>>> eval echo ++$a'.core'
>>>>         
>> What do you think of the idea of making it printf-like?
>>     
>
> It's not bad.  But need a lot of extend work that the old patch don't have.
> And this command doesn't need convert a value from 1 type to another.
> So I want use the "" way.
>   
BTW, Pedro nudges me out of my stupor and reminds me that the 
soon-to-be-posted tracepoint action to evaluate without collecting is 
also called "eval" (it was originally proposed as "do" but that 
ambiguates with "down", which seemed like a bad idea).

The two versions are not necessarily mutually exclusive - the 
downloading at the start of a trace run gives us a chance to filter out 
eval's that don't make sense for the target agent - but if we go too 
afield on syntax (the tracepoint version is simply a comma-separated 
list of GDB expressions), then that's going to be more of a problem to 
reconcile.

Stan