can't compile debug kernel

[Steven Schlansker]

options DDB?

(from ddb manpage)

On Nov 20, 2008, at 5:12 PM, Thomas Vogt wrote:

> Hello
>
> I try to create a debug kernel with freebsd current 64bit. I added  
> all options described in http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug-deadlocks.html 
> :
>
> makeoptions     DEBUG=-g
> options         INVARIANTS
> options         INVARIANT_SUPPORT
> options         WITNESS
> options         DEBUG_LOCKS
> options         DEBUG_VFS_LOCKS
> options         DIAGNOSTIC
> options         KDB
> options         KDB
>
> I always get:  /usr/src/sys/kern/kern_lock.c:917: undefined  
> reference to `stack_print_ddb'
>
> cc -c -O2 -frename-registers -pipe -fno-strict-aliasing  -std=c99 -g  
> -Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes  - 
> Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual  -Wundef - 
> Wno-pointer-sign -fformat-extensions -nostdinc  -I. -I/usr/src/sys - 
> I/usr/src/sys/contrib/altq -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS - 
> include opt_global.h -fno-common -finline-limit=8000 --param inline- 
> unit-growth=100 --param large-function-growth=1000  -fno-omit-frame- 
> pointer -mcmodel=kernel -mno-red-zone  -mfpmath=387 -mno-sse -mno- 
> sse2 -mno-sse3 -mno-mmx -mno-3dnow  -msoft-float -fno-asynchronous- 
> unwind-tables -ffreestanding -fstack-protector -Werror  vers.c
> linking kernel.debug
> kern_lock.o(.text+0x245): In function `lockmgr_printinfo':
> /usr/src/sys/kern/kern_lock.c:917: undefined reference to  
> `stack_print_ddb'
> *** Error code 1
>
> Would anyone care to tell me what i'm doing wrong?
>
> Regards,
> Thomas
>
>
>
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