From b5f0874cd96ee2a62aabc645b9626c2749cb6a01 Mon Sep 17 00:00:00 2001 From: manuel Date: Mon, 26 Mar 2012 12:54:45 +0200 Subject: initial pintos checkin --- pintos-progos/tests/userprog/sc-bad-arg.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 pintos-progos/tests/userprog/sc-bad-arg.c (limited to 'pintos-progos/tests/userprog/sc-bad-arg.c') diff --git a/pintos-progos/tests/userprog/sc-bad-arg.c b/pintos-progos/tests/userprog/sc-bad-arg.c new file mode 100644 index 0000000..0b512a0 --- /dev/null +++ b/pintos-progos/tests/userprog/sc-bad-arg.c @@ -0,0 +1,17 @@ +/* Sticks a system call number (SYS_EXIT) at the very top of the + stack, then invokes a system call with the stack pointer + (%esp) set to its address. The process must be terminated + with -1 exit code because the argument to the system call + would be above the top of the user address space. */ + +#include +#include "tests/lib.h" +#include "tests/main.h" + +void +test_main (void) +{ + asm volatile ("movl $0xbffffffc, %%esp; movl %0, (%%esp); int $0x30" + : : "i" (SYS_EXIT)); + fail ("should have called exit(-1)"); +} -- cgit v1.2.3