Re: PATCH: Fix mixing MIPS object files.

["H. J. Lu" <hjl at lucon dot org>]

On Thu, Nov 07, 2002 at 02:43:41PM +0100, Maciej W. Rozycki wrote:
> On Wed, 6 Nov 2002, H. J. Lu wrote:
> 
> > > - The main reason for varying EF_MIPS_ARCH for a given EF_MIPS_MACH
> > >   seems to be to say that a binary contains 32-bit code.  There are
> > >   other flags for that.
> > 
> > Linux 32bit MIPS kernel won't load any MIPS binaries marked MIPS III
> > or above.
> 
>  It will.  While MIPS III doesn't add anything useful for the 32-bit mode,
> MIPS IV does.  The kernel actually doesn't care of the ISA -- it checks
> the ABI to run o32 executables only..
> 

Now the question is

# mipsel-linux-as -mips[3|4|5|64]
# mipsel-linux-as -march=xxx
# mipsel-linux-gcc -mips[3|4|5|64] 
# mipsel-linux-gcc -march=xxx

will ever use 64bit registers. I hope they won't. If it is the case,
I have no problems to ignore EF_MIPS_ARCH when EF_MIPS_MACH is not
zero.


H.J.