1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
|
/* COVERAGE: modify_ldt */
#define _GNU_SOURCE
#include <unistd.h>
#include <sys/types.h>
#include <sys/syscall.h>
#if defined(__NR_modify_ldt)
#include <asm/ldt.h>
static inline int
__modify_ldt(int func, void *ptr, unsigned long bytecount)
{
return syscall(__NR_modify_ldt, func, ptr, bytecount);
}
#endif
int main()
{
#if defined(__NR_modify_ldt)
struct user_desc desc;
__modify_ldt(0, &desc, sizeof(desc));
//staptest// modify_ldt (0, XXXX, NNNN) = 0
/* Limit testing. */
__modify_ldt(-1, &desc, sizeof(desc));
//staptest// modify_ldt (-1, XXXX, NNNN) = NNNN
__modify_ldt(0, (void *)-1, 0);
//staptest// modify_ldt (0, 0x[f]+, 0) = NNNN
__modify_ldt(0, NULL, (unsigned long)-1L);
#if __WORDSIZE == 64
//staptest// modify_ldt (0, 0x0, 18446744073709551615) = NNNN
#else
//staptest// modify_ldt (0, 0x0, 4294967295) = NNNN
#endif
#endif
}
|