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Re: PATCH: Explicitly pass --64 to assembler on AMD64 targets
* Daniel Jacobowitz:
> How would you feel about a patch that made us always pass --64
> as appropriate, at least if the assembler in question is gas? I
> periodically bootstrap on a 64-bit kernel with a 32-bit root FS. But
> the assembler and linker are biarch, and the 64-bit libs are installed,
> so it's just the defaults that are wrong. If we were explicit, an
> x86_64-linux compiler would Just Work.
You still need some script hackery for objcopy and friends, I think,
that's why I didn't pursue the matter further.
Apart from that, the following entry from the specs file seems to
work (GAS does the right think with multiple --32/--64 options):
*asm:
%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} %{!m64:--32} %{m64:--64} %{m32:--32}