Adjustor thunks and variadic arguments.
Daniel Murphy via Digitalmars-d
digitalmars-d at puremagic.com
Thu Apr 9 04:20:48 PDT 2015
"Iain Buclaw via Digitalmars-d" wrote in message
news:mailman.1364.1428563414.3111.digitalmars-d at puremagic.com...
> If under the same object file, you can happily emit:
>
> sub offset, %thisreg
> jmp method
>
> But if doing separate compilation, many targets to not support doing
> such operations across section boundaries. So a more general/agnostic
> way to go about it is by copying all arguments, adjusting the 'this'
> pointer and calling target method at the codegen level. This works so
> long as you are not dealing with a variadic method (ie:
> std.stream.Stream.printf)
They don't support jumping across section boundaries? But they do support
calling?
Anyway it sounds like
sub offset, %thisreg
call method
ret
would do it
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