genode/repos/os/run/rom_to_file.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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assert_spec linux
#
# Build
#
build { core init drivers/timer
server/dynamic_rom
app/rom_to_file
server/lx_fs
}
create_boot_directory
#
# Generate config
#
install_config {
<config>
<parent-provides>
<service name="LOG"/>
<service name="RM"/>
<service name="ROM" />
<service name="RAM" />
<service name="CPU" />
<service name="PD" />
</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="dynamic_rom">
<resource name="RAM" quantum="4M"/>
<provides><service name="ROM"/></provides>
<config verbose="yes">
<rom name="test">
<inline description="update"><test />
</inline>
<sleep milliseconds="1000" />
<inline description="finished"/>
</rom>
</config>
</start>
<start name="lx_fs">
<resource name="RAM" quantum="4M"/>
<provides> <service name="File_system" /> </provides>
<config>
<policy label_prefix="rom_to_file" root="/fs_test" writeable="yes" />
</config>
</start>
<start name="rom_to_file">
<resource name="RAM" quantum="4M"/>
<config rom="test" />
</start>
</config>}
#
# Boot image
#
exec mkdir -p bin/fs_test
build_boot_image { core init timer
dynamic_rom
rom_to_file
lx_fs
fs_test
}
append qemu_args " -nographic "
run_genode_until "finished" 10
set output [exec cat bin/fs_test/test]
compare_output_to {<test />}
exec rm -r bin/fs_test