diff options
| author |   Kevin Hao <kexin.hao@windriver.com> | 2021-04-07 20:18:11 +0800 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2021-04-18 11:29:05 +0100 |
| commit | 670ceef0f6584ece5ce4176610255226a6148570 (patch) | |
| tree | 04a20894dfcf8e16597219aefcd65bbad931ad37 /meta/recipes-core | |
| parent | c34650400182a1104a5fbe03e54f5cea69eb1900 (diff) | |
| download | openembedded-core-670ceef0f6584ece5ce4176610255226a6148570.tar.gz | |
sysvinit-inittab/start_getty: Check /sys for the tty device existence
The hvc tty driver doesn't populate a file like /proc/tty/driver/serial,
so the current implementation of start_getty doesn't work for the hvc
console. By checking the /sys/class/tty/ for the tty device existence,
it should support more console types and also make the codes more simple.
Signed-off-by: Kevin Hao <kexin.hao@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-core')
| -rw-r--r-- | meta/recipes-core/sysvinit/sysvinit-inittab/start_getty | 44 |
1 files changed, 3 insertions, 41 deletions
diff --git a/meta/recipes-core/sysvinit/sysvinit-inittab/start_getty b/meta/recipes-core/sysvinit/sysvinit-inittab/start_getty index dfa799adac..699a1ead1a 100644 --- a/meta/recipes-core/sysvinit/sysvinit-inittab/start_getty +++ b/meta/recipes-core/sysvinit/sysvinit-inittab/start_getty @@ -1,17 +1,4 @@ #!/bin/sh -############################################################################### -# This script is used to automatically set up the serial console(s) on startup. -# The variable SERIAL_CONSOLES can be set in meta/conf/machine/*.conf. -# Script enhancement has been done based on Bug YOCTO #10844. -# Most of the information is retrieved from /proc virtual filesystem containing -# all the runtime system information (eg. system memory, device mount, etc). -############################################################################### - -# Get active serial filename. -active_serial=$(grep "serial" /proc/tty/drivers | cut -d/ -f1 | sed "s/ *$//") - -# Rephrase input parameter from ttyS target index (ttyS1, ttyS2, ttyAMA0, etc). -runtime_tty=$(echo $2 | grep -oh '[0-9]\+') # busybox' getty does this itself, util-linux' agetty needs extra help getty="/sbin/getty" @@ -25,31 +12,6 @@ case $(readlink -f "${getty}") in ;; esac -# Backup $IFS. -DEFAULT_IFS=$IFS -# Customize Internal Field Separator. -IFS="$(printf '\n\t')" - -for line in $active_serial; do - # Check we have the file containing current active serial target index. - if [ -e "/proc/tty/driver/$line" ] - then - # Remove all unknown entries and discard the first line (desc). - activetty=$(grep -v "unknown" "/proc/tty/driver/$line" \ - | tail -n +2 | grep -oh "^\s*\S*[0-9]\+") - for active in $activetty; do - # If indexes do match then enable the serial console. - if [ $active -eq $runtime_tty ] - then - if [ -c /dev/$2 ] - then - ${setsid:-} ${getty} -L $1 $2 $3 - fi - break - fi - done - fi -done - -# Restore $IFS. -IFS=$DEFAULT_IFS +if [ -e /sys/class/tty/$2 -a -c /dev/$2 ]; then + ${setsid:-} ${getty} -L $1 $2 $3 +fi |