gdb: Annotations for Running

 
 28.6 Running the Program
 ========================
 
 When the program starts executing due to a GDB command such as 'step' or
 'continue',
 
      ^Z^Zstarting
 
    is output.  When the program stops,
 
      ^Z^Zstopped
 
    is output.  Before the 'stopped' annotation, a variety of annotations
 describe how the program stopped.
 
 '^Z^Zexited EXIT-STATUS'
      The program exited, and EXIT-STATUS is the exit status (zero for
      successful exit, otherwise nonzero).
 
 '^Z^Zsignalled'
      The program exited with a signal.  After the '^Z^Zsignalled', the
      annotation continues:
 
           INTRO-TEXT
           ^Z^Zsignal-name
           NAME
           ^Z^Zsignal-name-end
           MIDDLE-TEXT
           ^Z^Zsignal-string
           STRING
           ^Z^Zsignal-string-end
           END-TEXT
 
      where NAME is the name of the signal, such as 'SIGILL' or
      'SIGSEGV', and STRING is the explanation of the signal, such as
      'Illegal Instruction' or 'Segmentation fault'.  The arguments
      INTRO-TEXT, MIDDLE-TEXT, and END-TEXT are for the user's benefit
      and have no particular format.
 
 '^Z^Zsignal'
      The syntax of this annotation is just like 'signalled', but GDB is
      just saying that the program received the signal, not that it was
      terminated with it.
 
 '^Z^Zbreakpoint NUMBER'
      The program hit breakpoint number NUMBER.
 
 '^Z^Zwatchpoint NUMBER'
      The program hit watchpoint number NUMBER.