From 4f670845ff9ab6c48bcb5f7bf4d4ef6dc3c3064b Mon Sep 17 00:00:00 2001 From: manuel Date: Tue, 27 Mar 2012 11:51:08 +0200 Subject: reorganize file structure to match the upstream requirements --- tests/userprog/sc-bad-arg.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 tests/userprog/sc-bad-arg.c (limited to 'tests/userprog/sc-bad-arg.c') diff --git a/tests/userprog/sc-bad-arg.c b/tests/userprog/sc-bad-arg.c new file mode 100644 index 0000000..0b512a0 --- /dev/null +++ b/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