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Kernel: Introduce the DevFS

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The DevFS along with DevPtsFS give a complete solution for populating
device nodes in /dev. The main purpose of DevFS is to eliminate the
need of device nodes generation when building the system.

Later on, DevFS will assist with exposing disk partition nodes.
This commit is contained in:
Liav A 2020-12-25 19:26:38 +02:00 • committed by Andreas Kling
parent 18e77aa285
commit 247517cd4a
7 changed files with 774 additions and 55 deletions
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53
Meta/build-root-filesystem.sh
View file

@ -3,9 +3,7 @@
set -e
wheel_gid=1
tty_gid=2
phys_gid=3
audio_gid=4
utmp_gid=5
window_uid=13
window_gid=13
@ -82,57 +80,8 @@ chown 0:$utmp_gid mnt/var/run/utmp
chmod 664 mnt/var/run/utmp
echo "done"
printf "setting up device nodes... "
printf "setting up device nodes folder... "
mkdir -p mnt/dev
mkdir -p mnt/dev/pts
mknod mnt/dev/fb0 b 29 0
chmod 660 mnt/dev/fb0
chown 0:$phys_gid mnt/dev/fb0
mknod mnt/dev/tty0 c 4 0
mknod mnt/dev/tty1 c 4 1
mknod mnt/dev/tty2 c 4 2
mknod mnt/dev/tty3 c 4 3
mknod mnt/dev/ttyS0 c 4 64
mknod mnt/dev/ttyS1 c 4 65
mknod mnt/dev/ttyS2 c 4 66
mknod mnt/dev/ttyS3 c 4 67
for tty in 0 1 2 3 S0 S1 S2 S3; do
chmod 620 mnt/dev/tty$tty
chown 0:$tty_gid mnt/dev/tty$tty
done
mknod mnt/dev/random c 1 8
mknod mnt/dev/null c 1 3
mknod mnt/dev/zero c 1 5
mknod mnt/dev/full c 1 7
# random, is failing (randomly) on fuse-ext2 on macos :)
chmod 666 mnt/dev/random || true
ln -s random mnt/dev/urandom
chmod 666 mnt/dev/null
chmod 666 mnt/dev/zero
chmod 666 mnt/dev/full
mknod mnt/dev/keyboard c 85 1
chmod 440 mnt/dev/keyboard
chown 0:$phys_gid mnt/dev/keyboard
mknod mnt/dev/mouse c 10 1
chmod 440 mnt/dev/mouse
chown 0:$phys_gid mnt/dev/mouse
mknod mnt/dev/audio c 42 42
chmod 220 mnt/dev/audio
chown 0:$audio_gid mnt/dev/audio
mknod mnt/dev/ptmx c 5 2
chmod 666 mnt/dev/ptmx
mknod mnt/dev/hda b 3 0
mknod mnt/dev/hdb b 3 1
mknod mnt/dev/hdc b 3 2
mknod mnt/dev/hdd b 3 3
for hd in a b c d; do
chmod 600 mnt/dev/hd$hd
done
ln -s /proc/self/fd/0 mnt/dev/stdin
ln -s /proc/self/fd/1 mnt/dev/stdout
ln -s /proc/self/fd/2 mnt/dev/stderr
echo "done"
printf "writing version file... "
GIT_HASH=$( (git log --pretty=format:'%h' -n 1 | head -c 7) || true )