From owner-freebsd-current  Sun Jun 18  4:45:18 2000
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Date: Sun, 18 Jun 2000 21:44:17 +1000 (EST)
From: Bruce Evans <bde@zeta.org.au>
X-Sender: bde@besplex.bde.org
To: Matthew Dillon <dillon@apollo.backplane.com>
Cc: Donn Miller <dmmiller@cvzoom.net>,
	"Jordan K. Hubbard" <jkh@zippy.osd.bsdi.com>,
	Peter Wemm <peter@netplex.com.au>, van.woerkom@netcologne.de,
	current@FreeBSD.ORG
Subject: Re: GENERIC from today does not detect system console on my box 
In-Reply-To: <200006180314.UAA69035@apollo.backplane.com>
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On Sat, 17 Jun 2000, Matthew Dillon wrote:

> ...
>     It looks like sccnattach() is calling scvidprobe() and scvidprobe()
>     is then:
> 
> 0xc023484b <scvidprobe+7>:      cmpl   $0x0,0x10(%ebp)
> 0xc023484f <scvidprobe+11>:     setne  %al
> 0xc0234852 <scvidprobe+14>:     movzbl %al,%eax
> 0xc0234855 <scvidprobe+17>:     push   %eax
> 0xc0234856 <scvidprobe+18>:     call   0xc0229c90 <vid_configure>    <----****
> 0xc023485b <scvidprobe+23>:     push   %ebx
> 0xc023485c <scvidprobe+24>:     push   $0xc0282682
> 0xc0234861 <scvidprobe+29>:     call   0xc0229b4c <vid_find_adapter>
> 
>     Calling vid_configure and vid_configure is dying.
> 
>     The list is generated from a linker_set ... one of those special linker
>     lists.
> 
>     Something's broken the list.... maybe the DATA_SET macro is something ilke
>     that.

Dependencies for setdef.h were broken by removing ioconf.o from ${OBJS}.
Previously, any change in the configuration resulted in a change to
ioconf.c, so setdefs.h got rebuilt.  Now, removing whole drivers doesn't
change anything in ${OBJS}, so the old setdefs.h gets used and the wrong
amount of space is allocated for some linker sets.  This bug cost me a
few hours when I tried removing console drivers in order to debug the
console initialization bugs.

This quick fix also backs out rev.1.180:

diff -c2 Makefile.i386~ Makefile.i386
*** Makefile.i386~	Sun Jun 18 21:22:28 2000
--- Makefile.i386	Sun Jun 18 21:31:50 2000
***************
*** 173,178 ****
  	${NORMAL_C}
  
! setdef0.c setdef1.c setdefs.h: ${OBJS} param.o
! 	@gensetdefs ${OBJS} param.o
  
  # this rule stops ./assym.s in .depend from causing problems
--- 172,177 ----
  	${NORMAL_C}
  
! setdef0.c setdef1.c setdefs.h: Makefile ${OBJS}
! 	@gensetdefs ${OBJS}
  
  # this rule stops ./assym.s in .depend from causing problems

Bruce



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