More VM tests.

[pintos-anon] / grading / vm / mmap-overlap.c

diff --git a/grading/vm/mmap-overlap.c b/grading/vm/mmap-overlap.c
new file mode 100644 (file)
index 0000000..c4a06e6
--- /dev/null
+++ b/grading/vm/mmap-overlap.c
@@ -0,0 +1,46 @@
+#include <stdio.h>
+#include <string.h>
+#ifdef PINTOS
+#include <syscall.h>
+#else
+#include "posix-compat.h"
+#endif
+#include "sample.inc"
+
+int
+main (void) 
+{
+  char *start = (char *) 0x10000000;
+  size_t i;
+  int fd[2];
+
+  printf ("(mmap-overlap) begin\n");
+
+  for (i = 0; i < 2; i++) 
+    {
+      fd[i] = open ("zeros");
+      if (fd[i] < 0) 
+        {
+          printf ("(mmap-overlap) open() failed\n");
+          return 1;
+        }
+      if (!mmap (fd[i], start, 8192))
+        {
+          if (i == 1) 
+            return 0;
+          else
+            {
+              printf ("(mmap-overlap) mmap() failed\n");
+              return 1; 
+            }
+        }
+      start += 4096;
+    }
+
+  printf ("(mmap-overlap) fail: mmap of overlapped blocks succeeded\n");
+
+  /* Done. */
+  printf ("(mmap-overlap) end\n");
+
+  return 0;
+}