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;
 }

Ubiquitous/XiZi_AIoT/services/boards/imx6q-sabrelite/test_irq_sender.c

@@ -96,5 +96,5 @@ int main()
         printf("%s: Soft interrupt send 1 time\n", prog_name);
     }
     printf("%s: Soft interrupt send done\n", prog_name);
-    exit();
+    exit(0);
 }

Ubiquitous/XiZi_AIoT/services/drivers/imx6q-sabrelite/clock/timer.c

@@ -178,7 +178,7 @@ int main(int argc, char** argv)
     static char server_name[] = "TimerServer";
     if (register_server(server_name) < 0) {
         printf("register server name %s failed\n", server_name);
-        exit();
+        exit(1);
     }
 
     static uint32_t epit_instance = HW_EPIT2;
@@ -188,7 +188,7 @@ int main(int argc, char** argv)
 
     ipc_server_loop(&IpcSabreliteTimer);
 
-    exit();
+    exit(0);
 }
 
 ////////////////////////////////////////////////////////////////////////////////

Ubiquitous/XiZi_AIoT/services/drivers/imx6q-sabrelite/enet/enet_test.c

@@ -250,23 +250,23 @@ int main(int argc, char** argv)
 {
     if (connect_session(&timer_session, timer_server_name, 4096) < 0) {
         printf("%s connect server: %s failed\n", enet_server_name, timer_server_name);
-        exit();
+        exit(1);
     }
 
     printf("%s: Mapping %08x(size: %x) to %08x\n", enet_server_name, AIPS1_ARB_PHY_BASE_ADDR, AIPS1_ARB_END_ADDR - AIPS1_ARB_BASE_ADDR, AIPS1_ARB_BASE_ADDR);
     if (!mmap(AIPS1_ARB_BASE_ADDR, AIPS1_ARB_PHY_BASE_ADDR, AIPS1_ARB_END_ADDR - AIPS1_ARB_BASE_ADDR, true)) {
         printf("%s: mmap AIPS1 ARB(%8x) failed\n", enet_server_name, AIPS1_ARB_PHY_BASE_ADDR);
-        exit();
+        exit(1);
     }
 
     printf("%s: Mapping %08x(size: %x) to %8x\n", enet_server_name, AIPS2_ARB_PHY_BASE_ADDR, AIPS2_ARB_END_ADDR - AIPS2_ARB_BASE_ADDR, AIPS2_ARB_BASE_ADDR);
     if (!mmap(AIPS2_ARB_BASE_ADDR, AIPS2_ARB_PHY_BASE_ADDR, AIPS2_ARB_END_ADDR - AIPS2_ARB_BASE_ADDR, true)) {
         printf("%s: mmap AIPS1 ARB(%08x) failed\n", enet_server_name, AIPS2_ARB_PHY_BASE_ADDR);
-        exit();
+        exit(1);
     }
 
     enet_test();
 
-    exit();
+    exit(0);
     return 0;
 }

Ubiquitous/XiZi_AIoT/services/fs/fs_server/fs_server.c

@@ -358,10 +358,10 @@ int main(int argc, char* argv[])
 
     if (register_server("MemFS") < 0) {
         printf("register server name: %s failed.\n", "MemFs");
-        exit();
+        exit(1);
     }
     ipc_server_loop(&IpcFsServer);
 
     // never reached
-    exit();
+    exit(0);
 }

Ubiquitous/XiZi_AIoT/services/lib/usyscall/usyscall.c

@@ -26,9 +26,9 @@ int spawn(struct Session* session, int fd, ipc_read_fn ipc_read, ipc_fsize_fn ip
     return ret;
 }
 
-int exit()
+void exit(int status)
 {
-    return syscall(SYSCALL_EXIT, 0, 0, 0, 0);
+    syscall(SYSCALL_EXIT, (uintptr_t)status, 0, 0, 0);
 }
 
 int yield(task_yield_reason reason)

Ubiquitous/XiZi_AIoT/services/lib/usyscall/usyscall.h

@@ -65,7 +65,7 @@ typedef int (*ipc_write_fn)(struct Session* session, int fd, char* src, int offs
 int syscall(int sys_num, intptr_t a1, intptr_t a2, intptr_t a3, intptr_t a4);
 
 int spawn(struct Session* session, int fd, ipc_read_fn ipc_read, ipc_fsize_fn ipc_fsize, char* name, char** argv);
-int exit();
+void exit(int status);
 int yield(task_yield_reason reason);
 int kill(int pid);
 int register_server(char* name);