update posix syscall make it more os specific

Author: xwings

qiling/os/posix/posix.py

@@ -128,16 +128,12 @@ def load_syscall(self, intno=None):
             self.syscall_name = self.syscall_map.__name__
         else:
             self.syscall_name = map_syscall(self.ql, self.syscall)
-
-            import qiling.os.posix.syscall
-            import qiling.os.linux.syscall
-            import qiling.os.macos.syscall
-            import qiling.os.freebsd.syscall
-
-            if self.syscall_name not in dir(qiling.os.posix.syscall) \
-            and self.syscall_name not in dir(qiling.os.linux.syscall) \
-            and self.syscall_name not in dir(qiling.os.macos.syscall) \
-            and self.syscall_name not in dir(qiling.os.freebsd.syscall):
+            _ostype_str = ostype_convert_str(self.ql.ostype)
+            _posix_syscall = ql_get_module_function(f"qiling.os.posix", "syscall")
+            _os_syscall = ql_get_module_function(f"qiling.os.{_ostype_str.lower()}", "syscall")
+            
+            if self.syscall_name not in dir(_posix_syscall) \
+            and self.syscall_name not in dir(_os_syscall):
 
                 syscall_name_str = self.syscall_name
                 self.syscall_map = None

qiling/os/utils.py

@@ -201,7 +201,7 @@ def _parse_param(param):
         fpass = f' (PASSTHRU)' if passthru else ''
 
         #TODO: Old code from demigod, ready to cleanup
-        if self.ql.ostype in QL_OS_POSIX and self.ql.loader.is_driver == True:
+        if self.ql.ostype in QL_OS_POSIX and self.ql.loader.is_driver:
             log = '0x%0.2x: %s(' % (address, function_name)
             for each in params:
                 value = params[each]