Update vm.c

include/pocketpy/pocketpy.h

@@ -864,6 +864,7 @@ enum py_PredefinedType {
     tp_SyntaxError,
     tp_RecursionError,
     tp_OSError,
+    tp_PermissionError,
     tp_NotImplementedError,
     tp_TypeError,
     tp_IndexError,

src/interpreter/vm.c

@@ -195,6 +195,7 @@ void VM__ctor(VM* self) {
     INJECT_BUILTIN_EXC(SyntaxError, tp_Exception);
     INJECT_BUILTIN_EXC(RecursionError, tp_Exception);
     INJECT_BUILTIN_EXC(OSError, tp_Exception);
+    INJECT_BUILTIN_EXC(PermissionError, tp_Exception);
     INJECT_BUILTIN_EXC(NotImplementedError, tp_Exception);
     INJECT_BUILTIN_EXC(TypeError, tp_Exception);
     INJECT_BUILTIN_EXC(IndexError, tp_Exception);

src/modules/os.c

@@ -48,6 +48,7 @@ static bool os_chdir(int argc, py_Ref argv) {
 }
 
 static bool os_getcwd(int argc, py_Ref argv) {
+    PY_CHECK_ARGC(0);
     char buf[1024];
     if(!platform_getcwd(buf, sizeof(buf))) return OSError("getcwd() failed");
     py_newstr(py_retval(), buf);