int main(int argc, char *argv[]) {
printf("Usage: %s [item]\n\titem:\n\t"\
"1 - wild pointer dereference\n\t"\
"2 - null pointer dereference\n\t" \
"3 - write to read-only memory\n\t"\
"4 - buffer overflow\n\t"\
"5 - stack overflow\n\t"\
"\nInput item: ", argv[0]);
int item = 0;
scanf("%d", &item);
printf("item = %d\n", item);
switch (item) {
case 1:
wild_ptr_dereference();
break;
case 2:
null_ptr_dereference();
break;
case 3:
wirte_to_readonly_memory();
break;
case 4:
check_buffer_overflow();
break;
case 5:
check_stack_overflow();
break;
default:
break;
}
return 0;
}
asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs)
{
struct pt_regs *old_regs = set_irq_regs(regs);
irq_enter();
check_stack_overflow(irq);
/*
* Some hardware gives randomly wrong interrupts. Rather
* than crashing, do something sensible.
*/
if (irq >= NR_IRQS)
handle_bad_irq(&bad_irq_desc);
else
generic_handle_irq(irq);
maybe_lower_to_irq14();
irq_exit();
set_irq_regs(old_regs);
}
static void check_stack_overflow() {
return check_stack_overflow();
}
