150 static host_callback gdb_callback;  variable
160       gdb_callback = default_callback;  in init_callbacks()
161       gdb_callback.init (&gdb_callback);  in init_callbacks()
162       gdb_callback.write_stdout = gdb_os_write_stdout;  in init_callbacks()
163       gdb_callback.flush_stdout = gdb_os_flush_stdout;  in init_callbacks()
164       gdb_callback.write_stderr = gdb_os_write_stderr;  in init_callbacks()
165       gdb_callback.flush_stderr = gdb_os_flush_stderr;  in init_callbacks()
166       gdb_callback.printf_filtered = gdb_os_printf_filtered;  in init_callbacks()
167       gdb_callback.vprintf_filtered = gdb_os_vprintf_filtered;  in init_callbacks()
168       gdb_callback.evprintf_filtered = gdb_os_evprintf_filtered;  in init_callbacks()
169       gdb_callback.error = gdb_os_error;  in init_callbacks()
170       gdb_callback.poll_quit = gdb_os_poll_quit;  in init_callbacks()
171       gdb_callback.magic = HOST_CALLBACK_MAGIC;  in init_callbacks()
183       gdb_callback.shutdown (&gdb_callback);  in end_callbacks()
534   gdbsim_desc = sim_open (SIM_OPEN_DEBUG, &gdb_callback, exec_bfd, argv);  in gdbsim_open()