From: Antti Kantee <pooka@iki.fi>
Date: Tue, 20 Jan 2015 16:55:46 +0000 (+0100)
Subject: be verbose about error and workaround slow console
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=9bc666a119cb52fdf1cc2c0afc163f18d9d7b616;p=rumpuser-xen.git

be verbose about error and workaround slow console

In case the domu runs very quickly, there will be a complete failure
to observe any output.  Therefore, in case we exit with val != 0,
sleep a bit.  This is a cheap and dirty workaround.
---

diff --git a/lib/emul.c b/lib/emul.c
index e9bc299..7b3fdc1 100644
--- a/lib/emul.c
+++ b/lib/emul.c
@@ -96,7 +96,13 @@ void __dead
 _exit(int eval)
 {
 	/* XXX this duplicates _app_main / callmain cleanup */
-	minios_printk("\n=== _exit(%d) called ===\n", eval);
+	if (eval) {
+		minios_printk("\n=== ERROR: _exit(%d) called ===\n", eval);
+		/* XXX: work around the console being slow to attach */
+		sleep(1);
+	} else {
+		minios_printk("\n=== _exit(%d) called ===\n", eval);
+	}
 	_rumprun_deconfig();
 	_netbsd_fini();
 	minios_stop_kernel();