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-rw-r--r--arch/sandbox/os/common.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/sandbox/os/common.c b/arch/sandbox/os/common.c
index db347e2769..36c8d622b6 100644
--- a/arch/sandbox/os/common.c
+++ b/arch/sandbox/os/common.c
@@ -436,6 +436,10 @@ static void print_usage(const char *prgname)
*
* Options can be:
*
+ * -m, --malloc=\<size\>
+ *
+ * Start sandbox with a specified malloc-space \<size\> in bytes.
+ *
* -i \<file\>
*
* Map a \<file\> to barebox. This option can be given multiple times. The \<file\>s