#
# On OMAP4 where no PS/2 is available, we rely on USB HID
#
proc use_usb_input { } { return [expr ![have_spec ps2] && [have_spec usb]] }

#
# Uncomment the following line when working on the VIM source code. Otherwise,
# the package may get recompiled, yet it does not get reinstalled into 'bin/'.
#
#exec rm -rf noux-pkg/bash bin/bash

set build_components {
	core init drivers/timer noux/minimal lib/libc_noux
	drivers/framebuffer drivers/pci drivers/input
	server/terminal server/ram_fs
	test/libports/ncurses
}

lappend_if [use_usb_input]  build_components drivers/usb
lappend_if [have_spec gpio] build_components drivers/gpio

#
# Build Noux packages only once
#
foreach pkg {bash coreutils vim} {
	lappend_if [expr ![file exists bin/$pkg]] build_components noux-pkg/$pkg }

build $build_components

# write default vimrc file
set vimrc_fd [open "bin/vim/share/vim/vimrc" w]
puts $vimrc_fd {
set noloadplugins
set hls
set nocompatible
set laststatus=2
set noswapfile
set viminfo=}
close $vimrc_fd

# strip all binaries prior archiving
exec sh -c "find bin/bash/ bin/vim/ bin/coreutils/ -type f | (xargs [cross_dev_prefix]strip || true) 2>/dev/null"

exec tar cfv bin/bash.tar      -h -C bin/bash .
exec tar cfv bin/coreutils.tar -h -C bin/coreutils .
exec tar cfv bin/vim.tar       -h -C bin/vim .

create_boot_directory

append config {
	<config verbose="yes">
		<parent-provides>
			<service name="ROM"/>
			<service name="LOG"/>
			<service name="CAP"/>
			<service name="RAM"/>
			<service name="RM"/>
			<service name="CPU"/>
			<service name="PD"/>
			<service name="IRQ"/>
			<service name="IO_PORT"/>
			<service name="IO_MEM"/>
			<service name="SIGNAL"/>
		</parent-provides>
		<default-route>
			<any-service> <any-child/> <parent/> </any-service>
		</default-route>
		<start name="timer">
			<resource name="RAM" quantum="1M"/>
			<provides><service name="Timer"/></provides>
		</start> }

append_if [have_spec sdl] config {
	<start name="fb_sdl">
		<resource name="RAM" quantum="4M"/>
		<provides>
			<service name="Input"/>
			<service name="Framebuffer"/>
		</provides>
	</start>}

append_if [have_spec pci] config {
	<start name="pci_drv">
		<resource name="RAM" quantum="1M"/>
		<provides><service name="PCI"/></provides>
	</start>}

append_if [have_spec framebuffer] config {
	<start name="fb_drv">
		<resource name="RAM" quantum="4M"/>
		<provides><service name="Framebuffer"/></provides>
	</start>}

append_if [have_spec ps2] config {
	<start name="ps2_drv">
		<resource name="RAM" quantum="1M"/>
		<provides><service name="Input"/></provides>
	</start> }

append_if [have_spec gpio] config {
	<start name="gpio_drv">
		<resource name="RAM" quantum="4M"/>
		<provides><service name="Gpio"/></provides>
		<config/>
	</start>}

append_if [use_usb_input] config {
	<start name="usb_drv">
		<resource name="RAM" quantum="12M"/>
		<provides><service name="Input"/></provides>
		<config uhci="yes" ehci="yes" xhci="yes"> <hid/> </config>
	</start> }

append config {
	<start name="terminal">
		<resource name="RAM" quantum="2M"/>
		<provides><service name="Terminal"/></provides>
		<config>
			<keyboard layout="de"/>
			<font size="12" />
		</config>
	</start>
	<start name="ram_fs">
		<resource name="RAM" quantum="10M"/>
		<provides><service name="File_system"/></provides>
		<config>
			<!-- preload RAM file system with some ROM images -->
			<content>
				<dir name="tmp">
					<rom name="init" as="blubb" />
				</dir>
				<dir name="home">
					<dir name="user">
						<!-- just a place holder -->
						<rom name="timer" />
					</dir>
				</dir>
			</content>
			<!-- constrain sessions according to their labels -->
			<policy label="noux -> root" root="/" />
			<policy label="noux -> home" root="/home/user" writeable="yes" />
			<policy label="noux -> tmp"  root="/tmp"       writeable="yes" />
		</config>
	</start>
	<start name="noux">
		<resource name="RAM" quantum="1G" />
		<config>
			<fstab>
				<tar name="coreutils.tar" />
				<tar name="vim.tar" />
				<tar name="bash.tar" />

				<!-- Example of how to impose policy onto a file system
				     session. The label attached to the 'fs' node is used
				     as a key to select the policy of 'ram_fs' -->

				<dir name="home"> <fs label="home" /> </dir>

				<!-- The entirety of ram_fs is mounted within the '/ram'
				     directory. -->

				<dir name="ram"> <fs label="root" /> </dir>
				<dir name="tmp"> <fs label="tmp" /> </dir>

			</fstab>
			<start name="/bin/bash">
				<env name="TERM" value="linux" />
			</start>
		</config>
	</start>
</config>
}

install_config $config


#
# Boot modules
#

# generic modules
set boot_modules {
	core init timer ld.lib.so noux terminal ram_fs
	libc.lib.so libm.lib.so libc_noux.lib.so ncurses.lib.so
	bash.tar coreutils.tar vim.tar
}

# platform-specific modules
lappend_if [have_spec       linux] boot_modules fb_sdl
lappend_if [have_spec         pci] boot_modules pci_drv
lappend_if [have_spec         ps2] boot_modules ps2_drv
lappend_if [have_spec framebuffer] boot_modules fb_drv
lappend_if [use_usb_input]         boot_modules usb_drv
lappend_if [have_spec gpio]        boot_modules gpio_drv

build_boot_image $boot_modules

if {[have_spec x86_64]} {
	# bash.tar is really huge when built for x86_64
	append qemu_args " -m 320 "
}

run_genode_until forever

exec rm bin/bash.tar