coreboot recently introduced non-printable loglevel markers in the CBMEM
console. Payloads were generally unaffected since they don't use log
levels and it is still legal to append lines without a marker to the
log. However, payloads using cbmem_console_snapshot() to display
existing logs from coreboot have started seeing '?' characters in place
of the markers. This patch fixes the issue by filtering out marker
characters.
BUG=b:221909874
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I4a9e5d464508320cf43ea572d62896d38c2a128d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62506
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
2c423441c0