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-rw-r--r--misc/cgo/test/callback_c.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/misc/cgo/test/callback_c.c b/misc/cgo/test/callback_c.c
index 5983a5e11..c296d70e0 100644
--- a/misc/cgo/test/callback_c.c
+++ b/misc/cgo/test/callback_c.c
@@ -8,5 +8,10 @@
void
callback(void *f)
{
+ // use some stack space
+ volatile char data[64*1024];
+
+ data[0] = 0;
goCallback(f);
+ data[sizeof(data)-1] = 0;
}