Re: Booter for 9.3 kernel not working

Ok, I did a simple comparison of a working and non-working kernel,
both GENERICSBC, and looking at .rodata and .text segments, the only
difference in terms of object size are in the sccs/version and config
strings.  A little harder to analyze the symbol values, but some of
the constants around the FPU seem different, though I don't know why
that would be.

I think at this point, trying to better understand the Booter code is
in order,  Can anyone point me to any of the code?  If needed I can
create a build environment (hopefully), but right now I just want to
understand how it is reading elf.  To the best of my knowledge, there
is nothing different in terms of elf headers, etc that would confuse
Booter.

Thanks,

Matt

On Wed, Jan 24, 2024 at 10:13 AM Martin Husemann <[email protected]> wrote:
>
> On Wed, Jan 24, 2024 at 06:49:48AM -0800, Jason Thorpe wrote:
> > I was just about to ask about this? it?s somewhat distressing that the source code for such a critical portion of the boot process isn?t in the source tree.
>
> Yes, it is bad that it isn't somwhere in a public repository and also needs
> an ancient MacOS (upto 8) only toolchain to build - this all makes improvements
> very hard.
>
> We had this thread before and had folks trying to create a local working
> build environment for it.
>
> We probably could throw in some porting effort, is there any cross-toolchain
> nowadays that could generate MacOS 8 or earlier binaries?
>
> Martin