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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
121 lines
2.8 KiB
Plaintext
121 lines
2.8 KiB
Plaintext
proc platform_supported { } {
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if {[have_spec x86_64] && [have_board pc]} {
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if {![have_spec linux] && ![have_spec foc] && ![have_spec sel4]} {
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return 1 } }
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return 0
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}
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if {![platform_supported]} {
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puts "Run script is not supported on this platform"
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exit 0
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}
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build { core lib/ld init timer monitor drivers/uart test/log }
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create_boot_directory
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install_config {
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<config>
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<parent-provides>
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<service name="LOG"/>
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<service name="PD"/>
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<service name="CPU"/>
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<service name="ROM"/>
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<service name="IRQ"/>
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<service name="IO_MEM"/>
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<service name="IO_PORT"/>
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<service name="RM"/>
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</parent-provides>
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<default-route>
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<any-service> <parent/> <any-child/> </any-service>
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</default-route>
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<default caps="100"/>
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<start name="timer">
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<resource name="RAM" quantum="1M"/>
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<provides> <service name="Timer"/> </provides>
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</start>
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<start name="pc_uart_drv">
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<resource name="RAM" quantum="2M"/>
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<provides>
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<service name="Terminal"/>
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<service name="Uart"/>
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</provides>
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<config>
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<policy label_prefix="monitor" uart="1"/>
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</config>
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</start>
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<start name="monitor" caps="1000">
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<resource name="RAM" quantum="100M"/>
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<config>
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<parent-provides>
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<service name="LOG"/>
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<service name="PD"/>
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<service name="CPU"/>
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<service name="ROM"/>
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</parent-provides>
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<default caps="100"/>
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<monitor>
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<policy label="first-test-log" stop="no"/>
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</monitor>
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<start name="first-test-log">
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<resource name="RAM" quantum="2M"/>
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<binary name="test-log"/>
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<route>
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<service name="PD"> <local/> </service>
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<service name="CPU"> <local/> </service>
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<any-service> <parent/> </any-service>
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</route>
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</start>
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<start name="second-test-log">
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<resource name="RAM" quantum="2M"/>
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<binary name="test-log"/>
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<route>
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<service name="PD"> <local/> </service>
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<service name="CPU"> <local/> </service>
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<any-service> <parent/> </any-service>
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</route>
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</start>
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</config>
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</start>
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</config>
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}
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build_boot_image [build_artifacts]
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set local_port 5555
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# qemu config
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append qemu_args " -display none "
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# connect comport 0 to stdio
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append qemu_args " -serial stdio "
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# connect comport 1 with TCP port $local_port
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append qemu_args " -serial chardev:uart "
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append qemu_args " -chardev socket,id=uart,port=$local_port,host=localhost,server,nowait,ipv4 "
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run_genode_until {.*\[init -> monitor -> first-test-log\].*} 30
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set genode_id [output_spawn_id]
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# sequence of GDB commands to execute at startup
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set gdb_cmds ""
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append gdb_cmds {-ex "target remote localhost:$local_port" }
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append gdb_cmds {-ex "set style enabled off" }
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# test for dumping memory
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append gdb_cmds {-ex "x/x 0x1003e8b" }
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# run GDB
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eval spawn [gdb] debug/ld.lib.so -n $gdb_cmds
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set gdb_id [list $spawn_id $genode_id]
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# show output of both GDB and Genode, supply user input to GDB
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interact -i $gdb_id $genode_id
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