bpf_core_patch_insn
err = bpf_core_patch_insn((void *)ctx->log, insn, relo->insn_off / 8, relo, relo_idx,
err = bpf_core_patch_insn(prog->name, insn, insn_idx, rec, i, &targ_res);
int bpf_core_patch_insn(const char *prog_name, struct bpf_insn *insn,