With msp430 - elf - GDB through the process of debugging, such as an executable file for the test. O, is the file test. O,

Now modify the program, recompile, and generate a new test. O, erases board in the original program, written to the new, at the same time using the file again in the GDB command to switch to the new procedure, with l check program, found that the code or the old, but an executable program is new, what is the missing step? Try again a few times, found that only quit GDB heavy into to be effective, it must be what I missed,

Thank you for help,