On 04/11/2017 11:30 PM, David Daney wrote:
When debugging the JIT on an embedded platform or cross build
environment, libbfd may not be available, making it impossible to run
bpf_jit_disasm natively.
Add an option to emit a binary image of the JIT code to a file. This
file can then be disassembled off line. Typical usage in this case
might be (pasting mips64 dmesg output to cat command):
$ cat > jit.raw
$ bpf_jit_disasm -f jit.raw -O jit.bin
$ mips64-linux-gnu-objdump -D -b binary -m mips:isa64r2 -EB jit.bin
Signed-off-by: David Daney <david.daney@xxxxxxxxxx>
Seems good, we could at some point also add an -I jit.bin option
if needed for offline analysis/comparison instead of using -f
plain text.
Thanks!
Acked-by: Daniel Borkmann <daniel@xxxxxxxxxxxxx>