函数逻辑报告 |
Source Code:kernel\bpf\verifier.c |
Create Date:2022-07-27 14:17:34 |
Last Modify:2022-05-19 20:02:10 | Copyright©Brick |
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函数名称:Return 0 if no propagation happened. Return negative error code if error* happened. Otherwise, return the propagated bit.
函数原型:static int propagate_liveness_reg(struct bpf_verifier_env *env, struct bpf_reg_state *reg, struct bpf_reg_state *parent_reg)
返回类型:int
参数:
类型 | 参数 | 名称 |
---|---|---|
struct bpf_verifier_env * | env | |
struct bpf_reg_state * | reg | |
struct bpf_reg_state * | parent_reg |
7361 | parent_flag等于live按位与REG_LIVE_READ |
7362 | flag等于live按位与REG_LIVE_READ |
7369 | 如果parent_flag恒等于likewise, but full 64-bit content matters 或非flag或parent_flag恒等于flag则返回:0 |
7376 | err等于Parentage chain of this register (or stack slot) should take care of all* issues like callee-saved registers, stack slot allocation time, etc. |
7380 | 返回:flag |
名称 | 描述 |
---|---|
propagate_liveness | A write screens off any subsequent reads; but write marks come from the* straight-line code between a state and its parent |
源代码转换工具 开放的插件接口 | X |
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支持:c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现:逻辑报告 代码生成和批量转换代码 |