Initial Pintos

1 files changed, 22 insertions, 0 deletions

diff --git a/src/tests/userprog/sc-boundary-2.c b/src/tests/userprog/sc-boundary-2.c
new file mode 100644
index 0000000..8acf036
--- /dev/null
+++ b/src/tests/userprog/sc-boundary-2.c
@@ -0,0 +1,22 @@
+/* Invokes a system call with one byte of the system call's
+   argument on a separate page from the rest of the bytes.  This
+   must work. */
+
+#include <syscall-nr.h>
+#include "tests/userprog/boundary.h"
+#include "tests/lib.h"
+#include "tests/main.h"
+
+void
+test_main (void) 
+{
+  /* Make one byte of a syscall argument hang over into a second
+     page. */
+  int *p = (int *) ((char *) get_boundary_area () - 7);
+  p[0] = SYS_EXIT;
+  p[1] = 67;
+
+  /* Invoke the system call. */
+  asm volatile ("movl %0, %%esp; int $0x30" : : "g" (p));
+  fail ("should have called exit(67)");
+}