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src/tests/vm/mmap-null.c

+/* Verifies that memory mappings at address 0 are disallowed. */
+
+#include <syscall.h>
+#include "tests/lib.h"
+#include "tests/main.h"
+
+void
+test_main (void) 
+{
+  int handle;
+  
+  CHECK ((handle = open ("sample.txt")) > 1, "open \"sample.txt\"");
+  CHECK (mmap (handle, NULL) == MAP_FAILED, "try to mmap at address 0");
+}
+