CS代考计算机代写 /* Verifies that mapping over the stack segment is disallowed. */

/* Verifies that mapping over the stack segment is disallowed. */

#include
#include
#include
#include “tests/lib.h”
#include “tests/main.h”

void
test_main (void)
{
int handle;
uintptr_t handle_page = ROUND_DOWN ((uintptr_t) &handle, 4096);

CHECK ((handle = open (“sample.txt”)) > 1, “open ”sample.txt””);
CHECK (mmap (handle, (void *) handle_page) == MAP_FAILED,
“try to mmap over stack segment”);
}