From d74f8435ea7479fe558efa63c2ecc9aed5662db2 Mon Sep 17 00:00:00 2001
From: Denys Vlasenko <vda.linux@googlemail.com>
Date: Mon, 13 Jan 2014 11:45:34 +0100
Subject: docs: tweak keep_data_small.txt
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
---
docs/keep_data_small.txt | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
(limited to 'docs')
diff --git a/docs/keep_data_small.txt b/docs/keep_data_small.txt
index 9fc799646..3ced1a61d 100644
--- a/docs/keep_data_small.txt
+++ b/docs/keep_data_small.txt
@@ -103,7 +103,15 @@ smaller code. In order to assign it, use SET_PTR_TO_GLOBALS macro:
SET_PTR_TO_GLOBALS(xzalloc(sizeof(G)));
-Typically it is done in <applet>_main().
+Typically it is done in <applet>_main(). Another variation is
+to use stack:
+
+int <applet>_main(...)
+{
+#undef G
+ struct globals G;
+ memset(&G, 0, sizeof(G));
+ SET_PTR_TO_GLOBALS(&G);
Now you can reference "globals" by G.a, G.buf and so on, in any function.
--
cgit v1.2.3-55-g6feb