r0 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0)
r1 = socket$netlink(0x10, 0x3, 0x0)
perf_event_open(0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
r2 = openat(r0, &(0x7f0000000000)='./file1\x00', 0x400000, 0x0)
fallocate(r2, 0x0, 0x0, 0x5)
sendfile(r1, r0, 0x0, 0x4000007ffffffc)