tree 55b4d3333f5fdd775efe3da126e128995f596ba4
parent 2c59a3884d0b95ec87b21be9c28df9416eb1bbef
author Julius Werner <jwerner@chromium.org> 1631142615 -0700
committer Julius Werner <jwerner@chromium.org> 1631228703 +0000

util/cbmem: Add -2/--2ndtolast option to print second-to-last boot log

On some platforms, runtime firmware crashes write logs to the CBMEM
console. For those, since a crash reboots the system, by the time we
have a chance to run `cbmem` again the boot where the crash happened
will be the one before the "last" (current) boot. So cbmem -1 doesn't
show the interesting part, and cbmem -c potentially shows a lot that is
cumbersome to dig through. This patch introduces a new option cbmem -2
to explicitly show only the boot cycle before the last one.

Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I6725698f4c9ae07011cbacf0928544cebb4ad6f8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57510
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>