* De: Marcel Moolenaar <[EMAIL PROTECTED]> [ Data: 2003-01-28 ]
[ Subjecte: Re: Patch to teach config(8) about "platforms". ]
> > I just really would like things to be clean, and abstracted, and not waste
> > anyone's time. Why should we have to duplicate so much code?
>
> I'm not sure platform is the answer. We already have the distinction
> between MACHINE_ARCH and MACHINE and it looks to me that MACHINE can
> do what you try to achieve with platform. Why add a "platform"
> keyword to config(8) if we already have the "machine" keyword?
Because that requires us to do what pc98 does, which is to have the
meta-port be the master port, and include up into the arch-port, and
that means that either you have every header in the arch-port be
wrapped by the meta-port, as <machine> is the meta-port, or you just
copy everything and make local changes. IMHO the right thing to do
is have a meta-port be meta-data under the master (arch) port, as
opposed to having a hell of a lot of meta-ports driving and duplicating
a lot from the arch-port, at least in the files list, if not in a
gamillion other places.
Generic endianness related information.
<sys/endian.h> -->
Implementations of swapping routines, etc., for this
architecture, among other things.
<machine/endian.h> -->
Defines the endianness of this platform.
<platform/endian.h>
Early cpu startup
machine_arch::locore.s::_start -->
Set up things in C that are early.
machine_arch::machdep.c::mach_init -->
Set up hardware for this platform we need
early (e.g. console, bootstrap vector, etc.)
machine::machdep_machine.c::platform_init
<--
Continue with slightly later CPU startup...
<--
Call out to MI startup...
-->
Do that thing you do.
kern::kern_main.c::mi_startup
config GENERIC -->
files.machine_arch -->
enable standard things
enable platform things
<--
-->
make <platform> symlink
build
Etc. Follow my logic?
Thanx,
juli.
--
Juli Mallett <[EMAIL PROTECTED]>
AIM: BSDFlata -- IRC: juli on EFnet
OpenDarwin, Mono, FreeBSD Developer
ircd-hybrid Developer, EFnet addict
FreeBSD on MIPS-Anything on FreeBSD
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