r0 = getpid()
r1 = pidfd_open(r0, 0x0)
process_madvise(r1, &(0x7f0000000440)=[{&(0x7f0000000000)="dd", 0x1}, {&(0x7f0000000040)='_', 0x1}], 0x2, 0x0, 0x0)