From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: llvm-objdump...
Date: Tue, 25 Apr 2017 13:13:37 -0400 (EDT)
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I think there are some endianness issues ;-)

davem@patience:~/src/GIT/net-next/tools/testing/selftests/bpf$ llvm-objdump -S x.o

x.o:    file format ELF64-BPF

Disassembly of section test1:
process:
       0:       b7 00 00 00 00 00 00 02         r0 = 33554432
       1:       61 21 00 50 00 00 00 00         r1 = *(u32 *)(r2 + 20480)

That first instruction should be "r0 = 2"