Re: [PATCH] Kbuild: Disable var tracking withCONFIG_DEBUG_INFO_REDUCED
From: Michal Marek
Date: Fri Feb 22 2013 - 07:47:40 EST
On Thu, Feb 07, 2013 at 01:58:40PM -0800, Andi Kleen wrote:
> From: Andi Kleen <ak@xxxxxxxxxxxxxxx>
> Newer gcc enables the var-tracking pass with -g to keep track which
> registers contain which variables. This is one of the slower passes in gcc.
> With reduced debug info (aimed at objdump -S, but not using a full debugger)
> we don't need this fine grained tracking. But it was still enabled
> because -g was enabled. Disable it explicitely for DEBUG_INFO_REDUCED.
Applied to kbuild.git#kbuild, thanks.
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