[U-Boot] config.mk:Update DBGFLAGS with dwarf information

[Tom Rini]

On Tue, Feb 14, 2012 at 10:55:31PM -0000, Prabhakar Kushwaha wrote:

> Built u-boot elf file does not contain any dwarf informations by default. This
> information is required for debugging.
> 
> Add dwarf ver 2 flag in DBGFLAGS.
> 
> Signed-off-by: Radu Lazarescu <radu.lazarescu at freescale.com>
> Signed-off-by: Prabhakar Kushwaha <prabhakar at freescale.com>

For posterity, with any recent enough toolchain, this shouldn't be
needed.  -g picks the best available debug format and that will be DWARF
v2 symbols (which gdb happily uses).

-- 
Tom
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