va_arglist

[David Daney]

Austin, Alex wrote:
> That's all about unpacking an arglist.

No, it does both 'packing' and 'unpacking'.

> I need to pack an arglist. Also, the function in question isn't
> actually printf, but a custom API, and it doesn't have a vprintf
> equivalent.

If your architecture is supported by libffi, and the vargs ABI is the 
same as the ABI for fixed args, libffi should do exactly what you need.

David Daney