Pintos: pintos/src/tests/userprog/sc-bad-arg.c Source File

00001 /* Sticks a system call number (SYS_EXIT) at the very top of the
00002    stack, then invokes a system call with the stack pointer
00003    (%esp) set to its address.  The process must be terminated
00004    with -1 exit code because the argument to the system call
00005    would be above the top of the user address space. */
00006 
00007 #include <syscall-nr.h>
00008 #include "tests/lib.h"
00009 #include "tests/main.h"
00010 
00011 void
00012 test_main (void) 
00013 {
00014   asm volatile ("movl $0xbffffffc, %%esp; movl %0, (%%esp); int $0x30"
00015                 : : "i" (SYS_EXIT));
00016   fail ("should have called exit(-1)");
00017 }