genode/ports/run/gdb_monitor.inc

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#
# \brief GDB command line arguments for setting a breakpoint in the 'main()' function
# \author Christian Prochaska
# \date 2013-09-04
#
proc gdb_main_breakpoint_cmds { target_binary_name } {
#
# We set a break in the 'main()' function of a dynamically linked
# 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.
#
set gdb_cmds ""
# 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_program_main()' function
append gdb_cmds {-ex "b call_program_main" }
# continue execution until the breakpoint triggers
append gdb_cmds {-ex "c" }
# delete the 'call_program_main()' breakpoint
append gdb_cmds {-ex "delete 1" }
# load the symbols of the test application
append gdb_cmds "-ex \"symbol-file bin/$target_binary_name\" "
# 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" }
return $gdb_cmds
}