sms: Add a simple SystemTap probe to see SQL queries
This will proble all queries done in the system. This can
help to identify some issues with libdbi's performance.
diff --git a/openbsc/contrib/sms/sqlite-probe.tap.d b/openbsc/contrib/sms/sqlite-probe.tap.d
new file mode 100644
index 0000000..e75cdfc
--- /dev/null
+++ b/openbsc/contrib/sms/sqlite-probe.tap.d
@@ -0,0 +1,5 @@
+probe process("/usr/lib/libsqlite3.so.0.8.6").function("sqlite3_get_table")
+{
+ a = user_string($zSql);
+ printf("sqlite3_get_table called '%s'\n", a);
+}