extern void handle_breakpoint(int signal, siginfo_t *info,
os_context_t *context);
extern void *handle_fun_end_breakpoint(int signal, siginfo_t *info,
extern void handle_breakpoint(int signal, siginfo_t *info,
os_context_t *context);
extern void *handle_fun_end_breakpoint(int signal, siginfo_t *info,