Re: MIPS32/MIPS4K kernel compilation settings

[Ralf Baechle <ralf@linux-mips.org>]

On Mon, Oct 07, 2002 at 08:48:26AM +0100, Colin.Helliwell@Zarlink.Com wrote:

> Was just wondering why the (2.4.19) kernel compilation for MIPS4K systems
> appears to be using the "-mips2" compiler setting - shouldn't it be using
> -mips4 or -mips32 to get the full instruction set?

Because we want MIPS II only ;-)

There are serious problems with the use of 64-bit stuff in the 32-bit
kernel, so we can't use mips3, mips4 or mips64.  -mips32 works but is not
supported by all toolchains.  Anyway, mips32 doesn't deliver much that isn't
already part of MIPS II.

  Ralf