genode/ports/run/gdb_monitor.run

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#
# \brief Test for using the GDB monitor
# \author Christian Prochaska
# \author Norman Feske
# \date 2011-05-24
#
#
# Only Genode/Fiasco.OC supports all the tested features at this time
#
assert_spec foc
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#
# Build
#
build {
core init
drivers/timer drivers/uart
app/gdb_monitor
test/gdb_monitor
}
create_boot_directory
#
# Generate config
#
set config {
<config verbose="yes">
<parent-provides>
<service name="ROM"/>
<service name="RAM"/>
<service name="IRQ"/>
<service name="IO_MEM"/>
<service name="IO_PORT"/>
<service name="CAP"/>
<service name="PD"/>
<service name="RM"/>
<service name="CPU"/>
<service name="LOG"/>
<service name="SIGNAL"/>
</parent-provides>
<default-route>
<any-service> <parent/> <any-child/> </any-service>
</default-route>
<start name="timer">
<resource name="RAM" quantum="512K"/>
<provides> <service name="Timer"/> </provides>
</start>
<start name="uart_drv">
<resource name="RAM" quantum="1M"/>
<provides> <service name="Terminal"/> </provides>
<config>
<policy label="gdb_monitor" uart="1"/>
</config>
</start>
<start name="gdb_monitor">
<resource name="RAM" quantum="4M"/>
<config>
<target name="test-gdb_monitor"/>
<preserve name="RAM" quantum="2M"/>
</config>
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</start>
</config>
}
install_config $config
#
# Boot modules
#
# generic modules
set boot_modules {
core init timer
ld.lib.so libc.lib.so libc_log.lib.so libc_lock_pipe.lib.so libc_terminal.lib.so
uart_drv
gdb_monitor test-gdb_monitor
}
build_boot_image $boot_modules
#
# Execute test case
#
#
set local_port 5555
# qemu config
append qemu_args " -m 128 -nographic "
# connect comport 0 to stdio
append qemu_args " -serial mon:stdio "
# connect comport 1 with TCP port $local_port
append qemu_args " -serial chardev:uart "
append qemu_args " -chardev socket,id=uart,port=$local_port,host=localhost,server,nowait "
run_genode_until {.*Remote debugging using /dev/terminal.*} 30
puts "GDB monitor is up, starting GDB"
# sequence of GDB commands to execute at startup
set gdb_cmds ""
append gdb_cmds {-ex "target remote localhost:$local_port" }
#
# The test breaks into the 'main()' function of the dynamically linked test
# application by using the following gdb command sequence. It's important that
# the 'main()' breakpoint gets set before the 'sharedlibrary' command is
# executed. Otherwise the breakpoint would get set in ld.lib.so's main()
# function.
#
# don't ask for y/n when loading a new symbol file
append gdb_cmds {-ex "set interactive-mode off" }
# load the symbols of ld.lib.so
append gdb_cmds {-ex "symbol-file bin/ld.lib.so" }
# set a breakpoint in the 'call_main()' function
append gdb_cmds {-ex "b call_main" }
# continue execution until the breakpoint triggers
append gdb_cmds {-ex "c" }
# delete the 'call_main()' breakpoint
append gdb_cmds {-ex "delete 1" }
# load the symbols of the test application
append gdb_cmds {-ex "symbol-file bin/test-gdb_monitor" }
# set a breakpoint in the application's 'main()' function
append gdb_cmds {-ex "b main" }
# load the symbols of loaded shared libraries
append gdb_cmds {-ex "sharedlibrary" }
# continue execution until the breakpoint triggers
append gdb_cmds {-ex "c" }
# delete the 'main()' breakpoint
append gdb_cmds {-ex "delete 2" }
#
# Test commands
#
# test: breakpoint in shared library
append gdb_cmds {-ex "b puts" }
append gdb_cmds {-ex "c" }
# test: stack trace when not in syscall
append gdb_cmds {-ex "bt" }
# test: thread info
append gdb_cmds {-ex "b Test_thread::entry()" }
append gdb_cmds {-ex "c" }
append gdb_cmds {-ex "info threads" }
# test: single stepping
append gdb_cmds {-ex "step" }
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# test: catch segmentation fault
append gdb_cmds {-ex "c" }
# test: stack trace when in syscall
append gdb_cmds {-ex "thread 1" }
append gdb_cmds {-ex "bt" }
# quit
append gdb_cmds {-ex "q" }
# run GDB and redirect stderr to stdio to get the relevant output into the expect buffer
eval spawn [gdb] bin/test-gdb_monitor -batch $gdb_cmds 2&>1
set timeout 60
expect {
timeout { puts stderr "Error: Test execution timed out"; exit -2 }
}
set gdb_output $expect_out(buffer)
#
# Evaluate the test results
#
if {![regexp {Breakpoint 2, main ()} $gdb_output]} {
puts stderr "Error: Breakpoint in main() did not trigger"
exit -1
}
if {![regexp {Breakpoint 3, puts ()} $gdb_output]} {
puts "Error: Breakpoint in shared library did not trigger"
exit -1
}
if {![regexp {#0 puts} $gdb_output] ||
![regexp {in func2 ()} $gdb_output] ||
![regexp {in func1 ()} $gdb_output] ||
![regexp {in main ()} $gdb_output]} {
puts stderr "Error: Stack trace when not in syscall is not as expected"
exit -1
}
if {![regexp {Breakpoint 4, Test_thread::entry()} $gdb_output]} {
puts stderr "Error: Breakpoint in test thread did not trigger"
exit -1
}
if {![regexp {\* 2 Thread 2 Test_thread::entry} $gdb_output] ||
![regexp { 1 Thread 1} $gdb_output]} {
puts stderr "Error: Thread info is not as expected"
exit -1
}
if {![regexp {40 func()} $gdb_output]} {
puts stderr "Error: Single stepping didn't result in the expected output"
exit -1
}
if {![regexp {Program received signal SIGSEGV, Segmentation fault.} $gdb_output]} {
puts stderr "Error: Segmentation fault exception was not catched"
exit -1
}
if {![regexp {Genode::Ipc_istream::_wait} $gdb_output] ||
![regexp {Genode::Ipc_server::_wait} $gdb_output] ||
![regexp {Genode::sleep_forever ()} $gdb_output]} {
puts stderr "Error: Stack trace when in syscall is not as expected"
exit -1
}
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puts "Test succeeded"
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# vi: set ft=tcl :