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OS/pintos-env/pintos/tests/userprog/sc-bad-arg.c

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/* 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 <syscall-nr.h>
#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)");
}