[RFA] 64-bit range types in GDB
Mon Dec 7 20:08:00 GMT 2009
>>>>> "Paul" == Paul Hilfinger <Hilfinger@adacore.com> writes:
Paul> Hmm. Sticky. There's this comment on 'length' in struct type:
Paul> /* Length of storage for a value of this type. This is what
Paul> sizeof(type) would return; use it for address arithmetic,
Paul> memory reads and writes, etc. ....
Paul> But then the code goes on to define 'unsigned length'. However,
Paul> according to the C standard, the type should really be
Paul> size_t---and technically that should be the TARGET's size_t. I
Paul> suspect this part of the representation hasn't been updated since
Paul> the days when people actually used 16-bit address spaces. What do
Paul> you suppose people would say to using size_t here at least?
size_t won't help on 32-bit hosts. There is also ULONGEST.
struct type and struct main_type are size-critical. It would be nice
not to grow them.
I suppose it depends on how much we care about objects bigger than 4G.
An error would be cheaper :-)
I'm open to either approach, though.
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