CVS commit: [netbsd-8] src/sys/arch/i386/stand/efiboot

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Tue May 22 17:43:21 UTC 2018

Modified Files:
        src/sys/arch/i386/stand/efiboot [netbsd-8]: eficons.c

Log Message:
Pull up following revision(s) (requested by jakllsch in ticket #831):

        sys/arch/i386/stand/efiboot/eficons.c: revision 1.6

During awaitkey(), move the cursor back to the beginning of the
countdown with '\b' only after waiting.

Some UEFI implementations have a destructive/erasing backspace,
and will not show the countdown if we move the cursor back before the
wait.

My ThinkPad T430 w/ Lenovo's UEFI exhibited this whiteout-backspace,
while my Gigabyte Brix GB-BXBT-2807 did not.

Should fix PR #53292.


To generate a diff of this commit:
cvs rdiff -u -r1.4.2.1 -r1.4.2.2 src/sys/arch/i386/stand/efiboot/eficons.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.