Date: Wed, 28 Jul 1999 15:38:12 +0100 From: Nik Clayton <nik@nothing-going-on.demon.co.uk> To: hackers@freebsd.org Subject: Including isa/isareg.h in sys/i386/boot/biosboot/serial.S Message-ID: <19990728153811.A39313@kilt.nothing-going-on.org>
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-hackers,
In the kernel config file you can use symbolic names for the various
COM ports, IO_COM1, IO_COM2, and so on.
These seem be defined in sys/isa/isareg.h.
If you want to configure FreeBSD to boot from a serial console you have
to set BOOT_COMCONSOLE_PORT in /etc/make.conf -- you can't use the
defines here, you have to use 0x3F8, 0x2F8, and so on.
As far as I can tell, BOOT_COMCONSOLE_PORT eventually gets passed down
to sys/i386/boot/biosboot/serial.S.
So, why not apply the following trivial patch to serial.S, so that
/etc/make.conf can instead contain
BOOT_COMCONSOLE_PORT= IO_COM2
which is just slightly friendlier? I'm not what you'd call a kernel
hacker, so this might be a stupid idea. . .
N
Index: serial.S
===================================================================
RCS file: /home/ncvs/src/sys/i386/boot/biosboot/serial.S,v
retrieving revision 1.12
diff -u -1 -r1.12 serial.S
--- serial.S 1999/04/22 21:02:44 1.12
+++ serial.S 1999/07/28 14:30:54
@@ -70,2 +70,3 @@
#include <isa/sioreg.h>
+#include <isa/isareg.h>
#include "asm.h"
--
[intentional self-reference] can be easily accommodated using a blessed,
non-self-referential dummy head-node whose own object destructor severs
the links.
-- Tom Christiansen in <375143b5@cs.colorado.edu>
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