-char *instr_process_id (msg_process_t proc, char *str, int len);
-char *instr_process_id_2 (const char *process_name, int process_pid, char *str, int len);
-void TRACE_msg_process_change_host(msg_process_t process, msg_host_t old_host,
- msg_host_t new_host);
-void TRACE_msg_process_create (const char *process_name, int process_pid, msg_host_t host);
-void TRACE_msg_process_destroy (const char *process_name, int process_pid, msg_host_t host);
-void TRACE_msg_process_kill(smx_process_exit_status_t status, msg_process_t process);
-void TRACE_msg_process_suspend(msg_process_t process);
-void TRACE_msg_process_resume(msg_process_t process);
-void TRACE_msg_process_sleep_in(msg_process_t process); //called from msg/gos.c
-void TRACE_msg_process_sleep_out(msg_process_t process);
-void TRACE_msg_process_end(msg_process_t process);
+XBT_PRIVATE char *instr_process_id (msg_process_t proc, char *str, int len);
+XBT_PRIVATE char *instr_process_id_2 (const char *process_name, int process_pid, char *str, int len);
+XBT_PRIVATE void TRACE_msg_process_change_host(msg_process_t process, msg_host_t old_host, msg_host_t new_host);
+XBT_PRIVATE void TRACE_msg_process_create (const char *process_name, int process_pid, msg_host_t host);
+XBT_PRIVATE void TRACE_msg_process_destroy (const char *process_name, int process_pid);
+XBT_PRIVATE void TRACE_msg_process_kill(smx_process_exit_status_t status, msg_process_t process);
+XBT_PRIVATE void TRACE_msg_process_suspend(msg_process_t process);
+XBT_PRIVATE void TRACE_msg_process_resume(msg_process_t process);
+XBT_PRIVATE void TRACE_msg_process_sleep_in(msg_process_t process); //called from msg/gos.c
+XBT_PRIVATE void TRACE_msg_process_sleep_out(msg_process_t process);