Date: Fri, 18 Sep 2009 00:09:46 +0200 From: "Julian H. Stacey" <jhs@berklix.com> To: hackers@freebsd.org Subject: genuine cpu I386_CPU kernel support Message-ID: <200909172209.n8HM9k4q043009@fire.js.berklix.net>
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Hi hackers,
I'm trying to get my Genuine 386 running 7.2. It currently runs 4.11.
386 was first base of FreeBSD, a shame to lose it.
So far I've hacked diffs as below + the normal
/etc/make.conf CFLAGS += -march=i386
cross compiled all bins libs etc &
setenv DESTDIR /usr/7.2 i
cd /usr/src/etc l make distrib-dirs
cd .. ; make install
But manually unloading 4.11 kernel & loading 7.2 kernel & booting
doesnt yet boot far enough to encourage me to move bins yet,
I think I need to do a bit more kernel before that ?
This is what I gave so far. Input welcome.
*** /pri/freebsd/releases/7.2-RELEASE/src/sys/./conf/options.i386 Wed Apr 15 05:14:26 2009
--- /usr/src/sys/./conf/options.i386 Thu Sep 17 10:53:11 2009
***************
*** 71,76 ****
--- 71,78 ----
NO_MEMORY_HOLE opt_cpu.h
# The CPU type affects the endian conversion functions all over the kernel.
+ // jhs@berklix added I386_CPU
+ I386_CPU opt_global.h
I486_CPU opt_global.h
I586_CPU opt_global.h
I686_CPU opt_global.h
*** /pri/freebsd/releases/7.2-RELEASE/src/sys/./crypto/blowfish/arch/i386/bf_enc.S Wed Apr 15 05:14:26 2009
--- /usr/src/sys/./crypto/blowfish/arch/i386/bf_enc.S Thu Sep 17 10:54:51 2009
***************
*** 10,16 ****
* XXX Should use CPP symbols defined as a result of
* XXX `cc -mcpu=pentiumpro'.
*/
! #if defined(I486_CPU) || defined(I586_CPU)
#include "bf_enc_586.S"
#else
#include "bf_enc_686.S"
--- 10,17 ----
* XXX Should use CPP symbols defined as a result of
* XXX `cc -mcpu=pentiumpro'.
*/
! // jhs@berklix added I386_CPU
! #if defined(I386_CPU) || defined(I486_CPU) || defined(I586_CPU)
#include "bf_enc_586.S"
#else
#include "bf_enc_686.S"
*** /pri/freebsd/releases/7.2-RELEASE/src/sys/./i386/conf/GENERIC Wed Apr 15 05:14:26 2009
--- /usr/src/sys/./i386/conf/GENERIC Thu Sep 17 10:56:26 2009
***************
*** 18,23 ****
--- 18,24 ----
#
# $FreeBSD: src/sys/i386/conf/GENERIC,v 1.474.2.17.2.1 2009/04/15 03:14:26 kensmith Exp $
+ cpu I386_CPU # jhs@berklix added I386_CPU
cpu I486_CPU
cpu I586_CPU
cpu I686_CPU
*** /pri/freebsd/releases/7.2-RELEASE/src/sys/./i386/i386/identcpu.c Wed Apr 15 05:14:26 2009
--- /usr/src/sys/./i386/i386/identcpu.c Thu Sep 17 11:05:05 2009
***************
*** 622,627 ****
--- 622,628 ----
break;
case CPUCLASS_386:
printf("386");
+ // jhs@berklix do we need to add code ?
break;
#if defined(I486_CPU)
case CPUCLASS_486:
***************
*** 909,915 ****
{
#if !defined(lint)
! #if !defined(I486_CPU) && !defined(I586_CPU) && !defined(I686_CPU)
#error This kernel is not configured for one of the supported CPUs
#endif
#else /* lint */
--- 910,917 ----
{
#if !defined(lint)
! // jhs@berklix added I386_CPU
! #if !defined(I386_CPU) && !defined(I486_CPU) && !defined(I586_CPU) && !defined(I686_CPU)
#error This kernel is not configured for one of the supported CPUs
#endif
#else /* lint */
***************
*** 920,926 ****
--- 922,930 ----
*/
switch (cpu_class) {
case CPUCLASS_286: /* a 286 should not make it this far, anyway */
+ #if !defined(I386_CPU) // jhs@berklix added I386_CPU
case CPUCLASS_386:
+ #endif // jhs@berklix added I386_CPU
#if !defined(I486_CPU)
case CPUCLASS_486:
#endif
Cheers,
Julian
--
Julian Stacey: BSD Unix Linux C Sys Eng Consultants Munich http://berklix.com
Mail ASCII plain text not HTML & Base64. http://asciiribbon.org
Virused Microsoft PCs cause spam. http://berklix.com/free/
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