refactored buildroot configuration

linux/buildroot-config-src/wally/main.config

@@ -8,6 +8,7 @@ BR2_HOST_GCC_AT_LEAST_5=y
 BR2_HOST_GCC_AT_LEAST_6=y
 BR2_HOST_GCC_AT_LEAST_7=y
 BR2_HOST_GCC_AT_LEAST_8=y
+BR2_HOST_GCC_AT_LEAST_9=y
 
 #
 # Target options
@@ -87,7 +88,7 @@ BR2_BZCAT="bzcat"
 BR2_XZCAT="xzcat"
 BR2_LZCAT="lzip -d -c"
 BR2_TAR_OPTIONS=""
-BR2_DEFCONFIG="./configs/wally-qemu_riscv64_virt_defconfig"
+BR2_DEFCONFIG="./board/wally/main.config"
 BR2_DL_DIR="$(TOPDIR)/dl"
 BR2_HOST_DIR="$(BASE_DIR)/host"
 
@@ -406,11 +407,10 @@ BR2_GENERATE_LOCALE=""
 # BR2_SYSTEM_ENABLE_NLS is not set
 # BR2_TARGET_TZ_INFO is not set
 BR2_ROOTFS_USERS_TABLES=""
-BR2_ROOTFS_OVERLAY=""
+BR2_ROOTFS_OVERLAY="./board/wally/rootfs_overlay"
 BR2_ROOTFS_POST_BUILD_SCRIPT=""
 BR2_ROOTFS_POST_FAKEROOT_SCRIPT=""
-BR2_ROOTFS_POST_IMAGE_SCRIPT="board/qemu/post-image.sh"
-BR2_ROOTFS_POST_SCRIPT_ARGS="$(BR2_DEFCONFIG)"
+BR2_ROOTFS_POST_IMAGE_SCRIPT=""
 
 #
 # Kernel
@@ -430,7 +430,7 @@ BR2_LINUX_KERNEL_PATCH=""
 # BR2_LINUX_KERNEL_USE_DEFCONFIG is not set
 # BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG is not set
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
-BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="./linux.config"
+BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="./board/wally/linux.config"
 BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES=""
 BR2_LINUX_KERNEL_CUSTOM_LOGO_PATH=""
 BR2_LINUX_KERNEL_IMAGE=y
@@ -473,7 +473,7 @@ BR2_LINUX_KERNEL_GZIP=y
 # Target packages
 #
 BR2_PACKAGE_BUSYBOX=y
-BR2_PACKAGE_BUSYBOX_CONFIG="./busybox.config"
+BR2_PACKAGE_BUSYBOX_CONFIG="./board/wally/busybox.config"
 BR2_PACKAGE_BUSYBOX_CONFIG_FRAGMENT_FILES=""
 # BR2_PACKAGE_BUSYBOX_SHOW_OTHERS is not set
 # BR2_PACKAGE_BUSYBOX_INDIVIDUAL_BINARIES is not set

linux/buildroot-config-src/wally/rootfs_overlay/.profile

@@ -0,0 +1,37 @@
+echo "Hello this ~/.profile is meant to demonstrate running some basic commands on Wally."
+echo "I am $(whoami)"
+echo "And I am on $(hostname)"
+touch myFile.txt
+echo "This is a line of text." > myFile.txt
+echo "A second line of text." >> myFile.txt
+mkdir myDir
+mv myFile.txt myDir
+echo "Created myFile.txt and moved it to myDir. It contains:"
+cat myDir/myFile.txt
+touch myScript.sh
+echo "echo \"Hello this is another example script\"" > myScript.sh
+chmod +x myScript.sh
+echo "Created myScript.sh. Running it yields:"
+./myScript.sh
+cd myDir
+ln -s ../myScript.sh symLinkToMyScript.sh
+echo "Created symLinkToMyScript.sh. Running it yields:"
+./symLinkToMyScript.sh
+ln ../myScript.sh hardLinkToMyScript.sh
+echo "Created hardLinkToMyScript.sh. Running it yields:"
+./hardLinkToMyScript.sh
+echo "Now let\'s remove all these example files and scripts"
+cd /
+rm -r myDir
+rm myScript.sh
+echo "Here is disk usage:"
+df -h
+echo "And here are the current processes:"
+ps
+echo "We can create a user."
+cd /
+mkdir home
+echo "password\npassword\n" | adduser myUser
+su -c "cd ~; echo \"I am $(whoami) (a new user) and my home directory is $(pwd)\""
+echo "And finally a login prompt."
+login

linux/buildroot-config-src/wally/rootfs_overlay/etc/inittab

@@ -0,0 +1,41 @@
+# /etc/inittab
+#
+# Copyright (C) 2001 Erik Andersen <andersen@codepoet.org>
+#
+# Note: BusyBox init doesn't support runlevels.  The runlevels field is
+# completely ignored by BusyBox init. If you want runlevels, use
+# sysvinit.
+#
+# Format for each entry: <id>:<runlevels>:<action>:<process>
+#
+# id        == tty to run on, or empty for /dev/console
+# runlevels == ignored
+# action    == one of sysinit, respawn, askfirst, wait, and once
+# process   == program to run
+
+# Startup the system
+::sysinit:/bin/mount -t proc proc /proc
+::sysinit:/bin/mount -o remount,rw /
+::sysinit:/bin/mkdir -p /dev/pts /dev/shm
+::sysinit:/bin/mount -a
+::sysinit:/sbin/swapon -a
+null::sysinit:/bin/ln -sf /proc/self/fd /dev/fd
+null::sysinit:/bin/ln -sf /proc/self/fd/0 /dev/stdin
+null::sysinit:/bin/ln -sf /proc/self/fd/1 /dev/stdout
+null::sysinit:/bin/ln -sf /proc/self/fd/2 /dev/stderr
+::sysinit:/bin/hostname -F /etc/hostname
+# now run any rc scripts
+::sysinit:/etc/init.d/rcS
+
+# (commented out) Put a getty on the serial port
+#console::respawn:/sbin/getty -L  console 0 vt100 # GENERIC_SERIAL
+# Actually no, let's automatically login
+console::respawn:-/bin/sh
+
+# Stuff to do for the 3-finger salute
+#::ctrlaltdel:/sbin/reboot
+
+# Stuff to do before rebooting
+::shutdown:/etc/init.d/rcK
+::shutdown:/sbin/swapoff -a
+::shutdown:/bin/umount -a -r