How to produce debugging symbols?

taxman taxman at
Wed Mar 26 22:06:48 PST 2003

On Wednesday 26 March 2003 03:11 pm, Dan Nelson wrote:
> In the last episode (Mar 26), Martin Moeller said:
> > I have a rather general question on debugging. I'm experiencing some
> > problems with some programs on FreeBSD 5.0. Because I'm quite a unix
> > newbie, I can only write to some mailinglists to ask if somebody
> > knows what to do.
> >
> > But I would like to take a few steps to solve my problems on my own.
> > I read something about gdb and kernel debugging, but find that
> > somehow disturbing. So I would like to ask a very *stupid* newbie
> > question:
> >
> > I can run a program within gdb, but I don't see the program's source
> > code. I assume this is meant with debug symbols? How can I compile a
> > program with those debug symbols?
> If it's your program, recompile and link with the -g commandline switch
> added.  If it's a base FreeBSD program (or port), edit the Makefile and
> add a line reading "DEBUG_FLAGS=-g" (this will compile with -g and also
> no strip the debugging symbols when the binary gets installed).

Does this work for the kernel?  I'd read that the kernel strips symbols 
anyway.  If i put
makeoptions    DEBUG=-g  in my kernel config (as shown in LINT) will I still 
get the symbols?  Thats for 4.x, what about 5.0 is that different?


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