disasm_insn
struct bpf_insn *disasm_insn(struct bpf_insn *insn, char *buf, size_t buf_sz);
cnt = disasm_insn(ctx, image, len, pc, buf, 1);
cnt = disasm_insn(ctx, image, len, pc, buf, sizeof(buf));
insn = disasm_insn(insn, insn_buf, sizeof(insn_buf));
insn = disasm_insn(insn, buf, sizeof(buf));