* MIPS32/MIPS4K kernel compilation settings
@ 2002-10-07 7:48 Colin.Helliwell
2002-10-07 12:18 ` Ralf Baechle
0 siblings, 1 reply; 2+ messages in thread
From: Colin.Helliwell @ 2002-10-07 7:48 UTC (permalink / raw)
To: linux-mips
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?
Thanks.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: MIPS32/MIPS4K kernel compilation settings
2002-10-07 7:48 MIPS32/MIPS4K kernel compilation settings Colin.Helliwell
@ 2002-10-07 12:18 ` Ralf Baechle
0 siblings, 0 replies; 2+ messages in thread
From: Ralf Baechle @ 2002-10-07 12:18 UTC (permalink / raw)
To: Colin.Helliwell; +Cc: linux-mips
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
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