genode/repos/gems/run/terminal_mux.run
Norman Feske 5a1cef6381 Make label prefixing more strict
This patch unconditionally applies the labeling of sessions and thereby
removes the most common use case of 'Child_policy::filter_session_args'.
Furthermore, the patch removes an ambiguity of the session labels of
sessions created by the parent of behalf of its child, e.g., the PD
session created as part of 'Child' now has the label "<child-name>"
whereas an unlabeled PD-session request originating from the child
has the label "<child-name> -> ". This way, the routing-policy of
'Child_policy::resolve_session_request' can differentiate both cases.

As a consequence, the stricter labeling must now be considered wherever
a precise label was specified as a key for a session route or a server-
side policy selection. The simplest way to adapt those cases is to use a
'label_prefix' instead of the 'label' attribute. Alternatively, the
'label' attribute may used by appending " -> " (note the whitespace).

Fixes #2171
2016-11-30 13:37:07 +01:00

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#
# \brief Example for using the terminal_mux server over UART
# \author Norman Feske
# \date 2013-02-20
#
#
# On Linux, we don't have a UART driver, on which this run script depends.
#
if {[have_spec linux]} { puts "Run script does not support Linux"; exit 0 }
set build_components {
core init noux/minimal lib/libc_noux app/cli_monitor test/bomb test/signal
test/resource_yield drivers/timer drivers/uart server/terminal_mux
server/terminal_log noux-pkg/vim
}
build $build_components
exec tar cfv bin/vim.tar -h -C bin/vim .
create_boot_directory
append config {
<config>
<parent-provides>
<service name="ROM"/>
<service name="LOG"/>
<service name="RAM"/>
<service name="RM"/>
<service name="CPU"/>
<service name="PD"/>
<service name="IRQ"/>
<service name="IO_PORT"/>
<service name="IO_MEM"/>
</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>
<route> <any-service> <parent/> </any-service> </route>
</start>
<start name="uart_drv">}
# use kernel debugger as UART on Fiasco.OC
append_if [have_spec foc] config {
<binary name="kdb_uart_drv"/>}
append config {
<resource name="RAM" quantum="1M"/>
<provides>
<service name="Uart"/>
<service name="Terminal"/>
</provides>
<config> }
# on Fiasco.OC the kdb_uart_drv is always UART 0
append_if [have_spec foc] config {
<policy label_prefix="terminal_mux" uart="0" detect_size="yes"/> }
# on all other kernels, direct terminal_mux to UART 1 (Qemu stdio, see below)
append_if [expr ![have_spec foc]] config {
<policy label_prefix="terminal_mux" uart="1" detect_size="yes"/> }
append config {
</config>
<route> <any-service> <parent/> <any-child/> </any-service> </route>
</start>
<start name="terminal_mux">
<resource name="RAM" quantum="4M"/>
<provides>
<service name="Terminal"/>
</provides>
<route>
<any-service> <child name="uart_drv" /> <parent/> <any-child /> </any-service>
</route>
</start>
<start name="terminal_log">
<resource name="RAM" quantum="2M"/>
<provides>
<service name="LOG"/>
</provides>
<route>
<any-service> <child name="terminal_mux" /> <parent/> <any-child/> </any-service>
</route>
</start>
<start name="cli_monitor">
<resource name="RAM" quantum="100M"/>
<config>
<preservation name="RAM" quantum="16M" />
<vfs>
<dir name="subsystems">
<inline name="noux.subsystem">
<subsystem name="noux" help="VIM executed in the noux runtime">
<resource name="RAM" quantum="16M" />
<config>
<fstab> <tar name="vim.tar" /> </fstab>
<start name="/bin/vim">
<env name="TERM" value="linux" />
<!-- Deactivate the loading of plugins. Otherwise, vim will
attempt to use a sub shell for pattern matching -->
<arg value="--noplugin" />
<!-- Do not use swap file. Any attempt to create of would
fail because we are on a read-only file system -->
<arg value="-n" />
<!-- Use the nocompatible mode, which is much nicer than
the plain vi mode -->
<arg value="-N" />
<!-- Permanently display status bar -->
<arg value="--cmd" />
<arg value="set laststatus=2" />
<!-- Enable highlighted search results -->
<arg value="--cmd" />
<arg value="set hls" />
</start>
</config>
</subsystem>
</inline>
<inline name="ram_eater.subsystem">
<subsystem name="ram_eater" help="resource-yield test program">
<resource name="RAM" quantum="25M" />
<binary name="test-resource_yield" />
<config child="yes" expand="yes" period_ms="100" />
</subsystem>
</inline>
<inline name="signal.subsystem">
<subsystem name="signal" help="signalling test program">
<resource name="RAM" quantum="5M" />
<binary name="test-signal" />
</subsystem>
</inline>
</dir>
</vfs>
</config>
<route>
<any-service> <child name="terminal_mux" /> <any-child/> <parent/> </any-service>
</route>
</start>
</config>
}
install_config $config
#
# Boot modules
#
# generic modules
set boot_modules {
core init timer ld.lib.so noux terminal_mux terminal_log
test-signal cli_monitor test-resource_yield
libc.lib.so libm.lib.so libc_noux.lib.so libc_terminal.lib.so ncurses.lib.so
vim.tar
}
lappend_if [expr ![have_spec foc]] boot_modules uart_drv
lappend_if [have_spec foc] boot_modules kdb_uart_drv
set fiasco_serial_esc_arg ""
build_boot_image $boot_modules
append qemu_args " -m 256 "
append qemu_args " -nographic "
#
# On Fiasco.OC, we use only one UART via the kernel debugger.
# On all other kernels, we write the core debug output to the kdb.log file,
# and use qemu's stdio as the UART used by terminal_mux.
#
append_if [expr ![have_spec foc]] qemu_args " -serial file:kdb.log "
append qemu_args " -serial mon:stdio"
run_genode_until forever
exec rm bin/vim.tar