arch: arm: bpf: Converting cBPF to eBPF for arm 32 bit
From: davem@davemloft.net (David Miller)
Date: 2017-05-06 18:38:16
Also in:
netdev
Possibly related (same subject, not in this thread)
- 2017-05-23 · arch: arm: bpf: Converting cBPF to eBPF for arm 32 bit · Kees Cook <hidden>
- 2017-05-23 · arch: arm: bpf: Converting cBPF to eBPF for arm 32 bit · Kees Cook <hidden>
- 2017-05-23 · arch: arm: bpf: Converting cBPF to eBPF for arm 32 bit · Shubham Bansal <hidden>
- 2017-05-23 · arch: arm: bpf: Converting cBPF to eBPF for arm 32 bit · Kees Cook <hidden>
- 2017-05-23 · arch: arm: bpf: Converting cBPF to eBPF for arm 32 bit · Kees Cook <hidden>
From: Shubham Bansal <redacted> Date: Sat, 6 May 2017 22:18:16 +0530
Hi Daniel, Thanks for the last reply about the testing of eBPF JIT. I have one issue though, I am not able to find what BPF_ABS and BPF_IND instruction does exactly.
They are not instructions, they are modifiers for the BPF_LD instruction which indicate an SKB load is to be performed. You never need to ask what a BPF instruction does, it is clear defined in the BPF interperter found in kernel/bpf/core.c Look for the case statement LD_ABS_W and friends in __bpf_prog_run().