函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\bpf\verifier.c Create Date:2022-07-27 14:10:32
Last Modify:2022-05-19 20:02:10 Copyright©Brick
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函数名称：Backtrack one insn at a time. If idx is not at the top of recorded* history then previous instruction came from straight line execution.

函数原型：static int get_prev_insn_idx(struct bpf_verifier_state *st, int i, u32 *history)

返回类型：int

参数：

类型参数名称
struct bpf_verifier_state *st
inti
u32 *history
1494  cnt等于history
1496  如果cnt且idx恒等于i则
1497  i等于prev_idx
1498  history自减
1499  否则
1500  i自减
1502  返回:i
调用者
名称描述
__mark_chain_precision