r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x105142, 0x0)
r1 = openat(0xffffffffffffffff, &(0x7f0000000280)='/proc/self/exe\x00', 0x0, 0x0)
sendfile(r0, r1, 0x0, 0x100000002)
pwritev2(r0, &(0x7f0000000480)=[{&(0x7f0000000000)="e7", 0x1}], 0x1, 0x0, 0x0, 0x1c)