[rfa/testsuite] check sizeof
Andrew Cagney
ac131313@cygnus.com
Wed Jul 12 21:21:00 GMT 2000
Stan Shebs wrote:
>
> Andrew Cagney wrote:
> >
> > Hello,
> >
> > The attatched checks that GDB and the running program agree over how
> > large a few basic C types are. As a convenience, it also dumps out the
> > gdbarch so that tracking down failures is easier.
>
> Geez, I must have missed something along the way - normally GDB gets
> its size info from debug bits in the executable, which means that it
> should be impossible for these tests to fail? But assuming that
> something changed to make it more likely, the tests themselves look
> satisfactory as the way to discover the discrepancy.
The problem I'm seeing is comming from the fact that GDB likes to
hardwire the various gdbtypes.h:builtin_type_*s. At present the
architecture gets to specify the value at runtime (originally it was
compiled in using #define ....). Sounds like there is also the
possability of setting these types from the debug info.
Thanks.
BTW, I also wonder if a few other tests could be simplified with this
technique. Have the gdb.*/*.exp file ask GDB what the type system is
like and then test things based on that.
Andrew
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