[cfe-dev] Clang and -mcmodel=large

[Eli Friedman]

On Sat, Jun 6, 2009 at 10:57 AM, Andrea Orrù<andreaorru91 at gmail.com> wrote:
> Hello all,
>
> I'm developing a hobby kernel for x86-64 machines,
> and I put the kernel into the higher half.
>
> I'm trying to switch from GCC to Clang, but it seems
> that the latter doesn't support the -mcmodel=large
> option, which is required in order to put the kernel
> at the 0xFFFF800000000000 in virtual memory,
> as specified in my linker script:
> http://pastebin.com/f2f9e0112
>
> Any workarounds or plans for implementing that feature
> in the Clang compiler?

Try passing "-mllvm -code-model=large" to clang.

-Eli