r0 = openat$bsg(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
r1 = openat(r0, &(0x7f0000000000)='./file1\x00', 0x1a3642, 0x0)
fallocate(r1, 0x0, 0x0, 0x6)
mmap(&(0x7f0000000000/0xc00000)=nil, 0xc00000, 0x1000009, 0x1f012, r1, 0x0)