monitor: remove useless warning of main process stack usage

Remove the following runtime warning:

  MONITOR: Free stack of process 'main' is only 0 chars

We don't account stack usage for the process 'main', so this message can
be silenced.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@3233 38d2e660-2303-0410-9eaa-f027e97ec537

diff --git a/bertos/kern/monitor.c b/bertos/kern/monitor.c
index 8da306771b927778a3ff8b3823554259d2b4b339..edcf7776d9549277bf0aae4af9b7812dee372070 100644 (file)
--- a/bertos/kern/monitor.c
+++ b/bertos/kern/monitor.c
@@ -147,7 +147,7 @@ static void NORETURN monitor(void)
                        Process *p = containerof(node, Process, monitor.link);
                        size_t free = monitor_checkStack(p->stack_base, p->stack_size);
 
-                       if (free < 0x20)
+                       if (p->stack_base && free < 0x20)
                                kprintf("MONITOR: Free stack of process '%s' is only %u chars\n",
                                                p->monitor.name, (unsigned int)free);
                }