From e7bc50ca8ffcaa6ed68ebd2315f78b0f5a7d10ad Mon Sep 17 00:00:00 2001 From: klaar36 Date: Fri, 20 Mar 2015 17:30:24 +0100 Subject: Initial Pintos --- src/tests/userprog/sc-boundary-2.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 src/tests/userprog/sc-boundary-2.c (limited to 'src/tests/userprog/sc-boundary-2.c') 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 +#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)"); +} -- cgit v1.2.1