genode/repos/os/run/monitor.run
Norman Feske 6a57683e52 New debug monitor
The new monitor component at os/src/monitor is the designated successor
of the gdb_monitor. This initial version, however, implements only the
subset needed to inspect the memory of the monitored component(s).

In contrast to the gdb_monitor, the new component supports the monitoring
of multiple components, leveraging the sandbox API. It can therefore be
used as a drop-in replacement for the init component. Like the gdb_monitor,
the new monitor speaks the GDB protocol over Genode's terminal session.
But the protocol implementation does not re-use any gdbserver code,
sidestepping the complexities of POSIX.

There exist two run scripts illustrating the new component. The
os/run/monitor.run script exercises memory inspection via the 'm' command
by letting a test program monitor itself. The os/run/monitor_gdb.run
script allows for the interactive use of GDB to interact with monitored
components.

Issue #4917
2023-06-16 11:24:26 +02:00

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proc platform_supported { } {
if {[have_spec x86_64] && [have_board pc]} {
if {![have_spec linux] && ![have_spec foc] && ![have_spec sel4]} {
return 1 } }
return 0
}
if {![platform_supported]} {
puts "Run script is not supported on this platform"
exit 0
}
build { core lib/ld init timer monitor test/monitor server/terminal_crosslink }
create_boot_directory
install_config {
<config>
<parent-provides>
<service name="LOG"/>
<service name="PD"/>
<service name="IRQ"/>
<service name="IO_MEM"/>
<service name="IO_PORT"/>
<service name="CPU"/>
<service name="ROM"/>
<service name="RM"/>
</parent-provides>
<default-route>
<any-service> <parent/> <any-child/> </any-service>
</default-route>
<default caps="100"/>
<start name="timer">
<resource name="RAM" quantum="1M"/>
<provides> <service name="Timer"/> </provides>
</start>
<start name="terminal_crosslink" caps="100">
<resource name="RAM" quantum="1M"/>
<provides> <service name="Terminal"/> </provides>
<config/>
</start>
<start name="monitor" caps="1000">
<resource name="RAM" quantum="100M"/>
<config>
<parent-provides>
<service name="LOG"/>
<service name="PD"/>
<service name="CPU"/>
<service name="ROM"/>
<service name="RM"/>
<service name="Timer"/>
<service name="Terminal"/>
</parent-provides>
<default caps="100"/>
<monitor>
<policy label="test-monitor" stop="no" wx="yes" />
</monitor>
<start name="test-monitor">
<resource name="RAM" quantum="32M"/>
<route>
<service name="PD"> <local/> </service>
<service name="CPU"> <local/> </service>
<any-service> <parent/> </any-service>
</route>
</start>
</config>
</start>
</config>
}
build_boot_image [build_artifacts]
append qemu_args "-nographic "
run_genode_until {\[init -> monitor\] child "test-monitor" exited with exit value 0.*\n} 30