genode/repos/ports/run/libc_noux.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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if {[have_spec linux]} {
puts "\nLinux not supported because of missing UART driver\n"
exit 0
}
set build_components {
core init drivers/timer drivers/uart
noux/minimal lib/libc_noux
server/ram_fs test/libc_noux
}
build $build_components
# create tar archive
exec tar cfv bin/libc_noux.tar -h -C bin test-libc_noux
create_boot_directory
append config {
<config verbose="yes">
<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>
</start>
<start name="uart_drv">
<resource name="RAM" quantum="1M"/>
<provides><service name="Terminal"/></provides>
<config>
<policy label_prefix="noux" uart="1"/>
</config>
</start>
<start name="ram_fs">
<resource name="RAM" quantum="10M"/>
<provides><service name="File_system"/></provides>
<config>
<!-- constrain sessions according to their labels -->
<policy label="noux -> root" root="/" writeable="yes"/>
</config>
</start>
<start name="noux">
<resource name="RAM" quantum="1G" />
<config>
<fstab>
<tar name="libc_noux.tar" />
<fs label="root" />
</fstab>
<start name="/test-libc_noux" />
</config>
</start>
</config>
}
install_config $config
#
# Boot modules
#
# generic modules
set boot_modules {
core init timer uart_drv ram_fs noux
ld.lib.so libc.lib.so libc_noux.lib.so
libc_noux.tar
}
build_boot_image $boot_modules
#
# Redirect the output of Noux via the virtual serial port 1 into a file to be
# dumped after the successful completion of the test.
#
set noux_output_file "noux_output.log"
append qemu_args " -nographic"
append qemu_args " -serial mon:stdio"
append qemu_args " -serial file:$noux_output_file"
run_genode_until "child.*exited.*\n" 20
set output [exec cat $noux_output_file]
puts $output
exec rm bin/libc_noux.tar
exec rm $noux_output_file
grep_output "test finished"
compare_output_to "test finished"