Hi Keqin Sun,
Hi Bjoern, This is a screenshot(Please see the attachment "debug.png") when I used gdb. There is no room for me to resume execution using 'g' command. The prompt of JDB appears only after I typed 'ESC' button and nothing happened when I resume execution(Please see the attachment "debug2.png").
you set a breakpoint on the main() function, but if you did as I told you before, the enter_kdebug() you use to actually set the breakpoint is _after_ this function entry. Therefore you do not see the breakpoint being hit.
If you are worried that "hello world" is not being printed as it should, I'd recommend you try to run the application without GDB and the enter_kdebug() line first. If this fails, something else is wrong in your setup.
Bjoern