Re: container_of equivalent in gdb-python script

[Jan Kiszka <jan.kiszka@web.de>]

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Tom Tromey wrote:
>>>>>> "Jan" == Jan Kiszka <jan.kiszka@web.de> writes:
> 
> Jan> I meanwhile discovered (reading testcases and python-*.c)
> Jan> gdb.lookup_type() and Value.cast() to make this real. But you see, I
> Jan> still need an ugly synthetic Value object which must have a non-'None'
> Jan> address to do this calculation. Is there a cleaner, more generic way?
> 
> Yeah, I think the missing piece is "gdb.parse_and_eval", which is on
> the archer python branch, but which we haven't pushed upstream into
> gdb CVS yet.  This takes an expression (a string), parses it,
> evaluates it, and returns a Value.  It is very convenient when
> implementing your own gdb commands.

Perfect, that solves the problem! Just checked out and tried successfully.

> 
> I don't think there's any particular problem with submitting this,
> just somebody finding the time.
> 

Hopefully before the next release. I would try to help, but I don't have
an FSF assignment.

Jan


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