r0 = mq_open(&(0x7f0000005c00)='-@\x00', 0x0, 0x0, 0x0)
preadv(r0, &(0x7f0000000240)=[{&(0x7f0000000000)=""/4, 0x4}], 0x1, 0x3c, 0x0)