xx                 29 kernel/printk.c printint(long long xx, int base, int sign)
xx                 35 kernel/printk.c   if (sign && (sign = (xx < 0)))
xx                 36 kernel/printk.c     x = -xx;
xx                 38 kernel/printk.c     x = xx;
xx                 16 user/printf.c  printint(int fd, long long xx, int base, int sgn)
xx                 23 user/printf.c    if (sgn && xx < 0) {
xx                 25 user/printf.c      x = -xx;
xx                 27 user/printf.c      x = xx;
xx               2704 user/usertests.c     void *xx = sbrk(0);
xx               2705 user/usertests.c     void *ret = sbrk(-(((uint64)xx) + 1));
xx               2706 user/usertests.c     if (ret != xx) {