commit bfaf2dd3509bc73bf4a4cea0e72472755ed860e2
author Andi Kleen <ak@linux.intel.com> Wed Jul 30 20:50:19 2014 +0200
committer Michal Marek <mmarek@suse.cz> Wed Jul 30 22:56:04 2014 +0200
tree e7ceb98352696ee3aa373a7559227a361983f31c
parent 866ced950bcd54820c3e571229356adc2b2dd72e

Kbuild: Add a option to enable dwarf4 v2

I found that a lot of unresolvable variables when using gdb on the
kernel become resolvable when dwarf4 is enabled. So add a Kconfig flag
to enable it.

It definitely increases the debug information size, but on the other
hand this isn't so bad when debug fusion is used.

v2: Use cc-option
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>