r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x1c5542, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0, 0x0)
sendfile(r0, r1, 0x0, 0x0)