1 files changed, 66 insertions, 0 deletions
diff --git a/erts/emulator/test/system_profile_SUITE_data/echo_drv.c b/erts/emulator/test/system_profile_SUITE_data/echo_drv.c
new file mode 100644
index 0000000000..d968ff06f9
--- /dev/null
+++ b/erts/emulator/test/system_profile_SUITE_data/echo_drv.c
@@ -0,0 +1,66 @@
+#include <stdio.h>
+#include "erl_driver.h"
+
+typedef struct _erl_drv_data {
+    ErlDrvPort   erlang_port;
+} EchoDrvData;
+
+static EchoDrvData echo_drv_data, *echo_drv_data_p;
+
+static EchoDrvData *echo_drv_start(ErlDrvPort port, char *command);
+static void         echo_drv_stop(EchoDrvData *data_p);
+static void         echo_drv_output(EchoDrvData *data_p, char *buf, int len);
+static void         echo_drv_finish(void);
+static int          echo_drv_control(EchoDrvData *data_p, unsigned int command,
+				     char *buf, int len,
+				     char **rbuf, int rlen);
+
+static ErlDrvEntry echo_drv_entry = { 
+    NULL, /* init */
+    echo_drv_start,
+    echo_drv_stop,
+    echo_drv_output,
+    NULL, /* ready_input */
+    NULL, /* ready_output */
+    "echo_drv",
+    echo_drv_finish,
+    NULL, /* handle */
+    echo_drv_control,
+    NULL, /* timeout */
+    NULL, /* outputv */
+    NULL  /* ready_async */
+};
+
+DRIVER_INIT(echo_drv)
+{
+    echo_drv_data_p = NULL;
+    return &echo_drv_entry;
+}
+
+static EchoDrvData *echo_drv_start(ErlDrvPort port, char *command)
+{
+    if (echo_drv_data_p != NULL) {
+	return ERL_DRV_ERROR_GENERAL;
+    }
+    echo_drv_data_p = &echo_drv_data;
+    echo_drv_data_p->erlang_port = port;
+    return echo_drv_data_p;
+}
+
+static void echo_drv_stop(EchoDrvData *data_p) {
+    echo_drv_data_p = NULL;
+}
+
+static void echo_drv_output(EchoDrvData *data_p, char *buf, int len) {
+    driver_output(data_p->erlang_port, buf, len);
+}
+
+static void echo_drv_finish() {
+    echo_drv_data_p = NULL;
+}
+
+static int echo_drv_control(EchoDrvData *data_p, unsigned int command,
+			    char *buf, int len,
+			    char **rbuf, int rlen) {
+    return 0;
+}