From a20617af34e3dbeba682cfa6bf6366f3fc0f8e14 Mon Sep 17 00:00:00 2001
From: fche <fche>
Date: Wed, 27 Feb 2008 23:11:19 +0000
Subject: PR5697: include tutorial & language reference guide

---
 doc/tutorial/embedded-C.stp | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 doc/tutorial/embedded-C.stp

(limited to 'doc/tutorial/embedded-C.stp')

diff --git a/doc/tutorial/embedded-C.stp b/doc/tutorial/embedded-C.stp
new file mode 100644
index 00000000..6834d728
--- /dev/null
+++ b/doc/tutorial/embedded-C.stp
@@ -0,0 +1,25 @@
+%{
+#include <linux/utsname.h>
+%}
+
+function utsname:string (field:long)
+%{
+  if (down_read_trylock (& uts_sem))
+    {
+      const char *f =
+         (THIS->field == 0 ? system_utsname.sysname :
+          THIS->field == 1 ? system_utsname.nodename :
+          THIS->field == 2 ? system_utsname.release :
+          THIS->field == 3 ? system_utsname.version :
+          THIS->field == 4 ? system_utsname.machine :
+          THIS->field == 5 ? system_utsname.domainname : "");
+      strlcpy (THIS->__retvalue, f, MAXSTRINGLEN);
+      up_read (& uts_sem);
+    }
+%}
+
+probe begin
+{
+  printf ("%s %s\n", utsname(0), utsname(2))
+  exit ()
+}
-- 
cgit