Fix userland exit() type

Ubiquitous/XiZi_AIoT/services/app/init.c

@@ -28,7 +28,7 @@ int main(int argc, char* argv[])
     char* shell_task_param[2] = { "/shell", 0 };
     if ((fd = open(&session, shell_task_param[0])) < 0) {
         printf("Open %s failed\n", shell_task_param[0]);
-        exit();
+        exit(1);
     }
 
     if (spawn(&session, fd, read, fsize, shell_task_param[0], shell_task_param) < 0) {
@@ -37,6 +37,6 @@ int main(int argc, char* argv[])
 
     close(&session, fd);
 
-    exit();
+    exit(0);
     return 0;
 }

Ubiquitous/XiZi_AIoT/services/app/simple_client.c

@@ -12,6 +12,7 @@
 #include <assert.h>
 #include <stdbool.h>
 #include <stdint.h>
+#include <stdlib.h>
 
 #include "libfs_to_client.h"
 #include "libserial.h"
@@ -90,7 +91,7 @@ int main(int argc, char** argv)
     struct Session session_nowait;
     if (connect_session(&session_wait, "SimpleServer", 4096) < 0 || connect_session(&session_nowait, "SimpleServer", 4096) < 0) {
         printf("connect session failed\n");
-        exit();
+        exit(1);
     }
 
     char *buf1 = NULL, *buf2 = NULL;
@@ -138,5 +139,5 @@ int main(int argc, char** argv)
     free_session(&session_wait);
     free_session(&session_nowait);
 
-    exit();
+    exit(0);
 }

Ubiquitous/XiZi_AIoT/services/app/simple_server.c

@@ -38,10 +38,10 @@ int main(int argc, char* argv[])
 {
     if (register_server("SimpleServer") < 0) {
         printf("register server name: %s failed.\n", "SimpleServer");
-        exit();
+        exit(1);
     }
     ipc_server_loop(&IpcSimpleServer);
 
     // never reached
-    exit();
+    exit(0);
 }

Ubiquitous/XiZi_AIoT/services/app/test_fs.c

@@ -48,6 +48,6 @@ int main(int argc, char* argv[])
     printf("Test memry error %s.\n", 0x50000000);
     printf("After error computing.\n");
 
-    exit();
+    exit(0);
     return 0;
 }

Ubiquitous/XiZi_AIoT/services/app/test_irq_block.c

@@ -24,12 +24,12 @@ int main(int argc, char* argv[])
     struct Session session;
     if (connect_session(&session, "TestIRQ", 4096) < 0) {
         printf("connect session failed\n");
-        exit();
+        exit(1);
     }
 
     printf("%s start waiting for IRQ.\n", prog_name);
     wait_intr(&session);
     printf("%s return from waiting for IRQ.\n", prog_name);
 
-    exit();
+    exit(0);
 }

Ubiquitous/XiZi_AIoT/services/app/test_irq_handler.c

@@ -40,16 +40,16 @@ int main()
 {
     if (register_irq(SW_INTERRUPT_3, Ipc_intr_3) < 0) {
         printf("TEST_SW_HDLR: bind failed");
-        exit();
+        exit(1);
     }
 
     static char prog_name[] = "TestIRQ";
     if (register_server("TestIRQ") < 0) {
         printf("register server name: %s failed.\n", prog_name);
-        exit();
+        exit(1);
     }
 
     ipc_server_loop(&IpcSwIntrHandler);
 
-    exit();
+    exit(0);
 }

Ubiquitous/XiZi_AIoT/services/app/test_priority.c

@@ -39,6 +39,6 @@ int main(int argc, char* argv[])
     // test function
     count_down();
 
-    exit();
+    exit(0);
     return 0;
 }