Compiling a debug version of U-boot

What should I do to build a debug version of U-boot.
I currently add ?#define DEBUG? to the u-boot_1.1.2/include/configs/board_name.h file. Is it the right method?

I building U-boot for a custom board derived from the MPC8540ADS, and when I start gdb I get a strange warning. If someone has any idea it would help!

linuxcompiler:~/u-boot/u-boot_1.1.2$ ppc-linux-gdb u-boot
Warning: Cannot initialize solib-absolute-prefix
GNU gdb Yellow Dog Linux (5.2.1-4b_8)
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "--host=i386-redhat-linux --target=ppc-linux"...
0xfffffffc in ?? ()
(gdb)

Thanks

Armand

Environment:
- ELDK3.1 (gcc and gdb)
- CROSS_COMPILE = ppc_6xx-

Normally you would just enable "-DDEBUG" in "config.mk"; in some cases you may also have to select a debug version of the linker script (see the LDSCRIPT definition). However, this enables DEBUG globally, which usually is NOT a good idea. It may even crash your system if you don't know exactly what you're doing.

It's usually better to just enable DEBUG in the specific files you're interested in.

And which of that is a strange warning?

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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