[Bug general/5540] location expression DW_OP_breg is sign extended

["cagney at redhat dot com" <sourceware-bugzilla@sourceware.org>]

------- Additional Comments From cagney at redhat dot com  2008-01-11 17:44 -------
Which register is OP_breg being applied to?

long Frame.getRegister(Register) returns the register, converted to a long,
based on the register's type.  So for pointer registers such as $esp, that
results in an unsigned extension, while for general registers (such as $eax)
that will be sign-extended due to SignedType.

Several questions:
-> should that breg be a pointer?
-> should there be a Frame method that returns registers as unsigned "Word"
values (which is more like what the location expression code expects)
-> should the location-expression code be doing word-sized, instead of Long
sized, arrithmetic?

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=5540

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