import gdb

in_section = False

class StartStopBreakpoint(gdb.Breakpoint):
    def __init__(self, loc, is_start):
        gdb.Breakpoint.__init__(self, loc, internal=True)
        self.silent = True

        self.is_start = is_start
        
    def stop(self):
        global in_section
        
        if self.is_start: # I know that this 'if' is not necessary ...
            assert not in_section
            in_section = True
        else:
            assert in_section
            in_section = False
            
        return False # never stop here
    
class SectionBreakpoint(gdb.Breakpoint):
    def __init__(self, location):
        gdb.Breakpoint.__init__(self, location, internal=True)
        self.silent = True
        
    def stop(self):
        if in_section:
            print("ignore hit in section")
            assert gdb.parse_and_eval("inside") == 1
            return False
        
        else:
            print("")
            print("Section breakpoint hit outside of section")
            print("")
            assert gdb.parse_and_eval("inside") == 0
            return True

StartStopBreakpoint("start", is_start=True)
StartStopBreakpoint("stop", is_start=False)
SectionBreakpoint("breakpoint")