Date: Sat, 3 Mar 2001 01:53:37 -0500 From: David Banning <david@www3.pacific-pages.com> To: Matthew Emmerton <matt@gsicomp.on.ca> Cc: questions@FreeBSD.ORG Subject: Re: how to make debug kernel with 4.2 Message-ID: <20010303015337.A700@www3.pacific-pages.com> In-Reply-To: <008501c0a335$24ab3c90$1200a8c0@gsicomp.on.ca>; from matt@gsicomp.on.ca on Fri, Mar 02, 2001 at 11:23:34AM -0500 References: <200103021549.f22FnPr77908@d.tracker> <008501c0a335$24ab3c90$1200a8c0@gsicomp.on.ca>
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On Fri, Mar 02, 2001 at 11:23:34AM -0500, Matthew Emmerton wrote: > > I am trying to make a debug kernel with 4.2 Stable. > > I went to /usr/src/sys/i386/conf and typed > > # /usr/sbin/config -g MYKERNEL > > and then went to /usr/src and did it the 4.2 way; > > # make buildkernel KERNCONF=MYKERNEL > > # make installkernel KERNCONF=MYKERNEL > > > > Problem is, it doesn't like a debug kernel. I am told it should be > > around 10 meg size and it's only normal size. > > The *installed* kernel will be stripped. In the compile directory you'll > find a kernel.debug which will be about 10MB. I did not find it there - or anywhere. I did a "periodic weekly", then; $ locate kernel | grep debug gave only; /usr/ports/emulators/wine/work/wine-20010112/dlls/kernel/debugger.c /usr/ports/emulators/wine/work/wine-20010112/dlls/kernel/debugger.o /usr/ports/emulators/wine/work/wine-20010112/dlls/kernel/libwindebug.so /usr/ports/emulators/wine/work/wine-20010112/dlls/kernel/windebug.c /usr/ports/emulators/wine/work/wine-20010112/dlls/kernel/windebug.o /usr/ports/emulators/wine/work/wine-20010112/dlls/kernel/windebug.spec /usr/ports/emulators/wine/work/wine-20010112/dlls/kernel/windebug.spec.c /usr/ports/emulators/wine/work/wine-20010112/dlls/kernel/windebug.spec.o /usr/share/doc/en_US.ISO_8859-1/books/handbook/kerneldebug.html /usr/share/doc/ja/books/handbook/kerneldebug.html It IS building a new kernel. It's just not building the debug version. Any ideas where to look for the problem? > > When you need to debug something (like a kernel crash), you do the > following: > > gdb -k > symbol-file /usr/src/compile/MYKERNEL/kernel.debug > > And the symbols for the stripped-but-installed kernel will magically appear. > > You can find more details about this in the handbook, Chapter 23 (kernel > debugging) > > -- > Matt Emmerton > > -- "Of course power tools and alcohol don't mix. Everyone knows power tools aren't soluble in alcohol ..." -- Crazy Nigel To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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