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 14:15:25
Last Modify:2022-05-19 20:02:10 Copyright©Brick
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函数名称：Generate max value of the high 32-bit from TNUM info.

函数原型：static u64 gen_hi_max(struct tnum var)

返回类型：u64

参数：

类型参数名称
struct tnumvar
5550  返回:value按位或mask的值按位与0xffffffffULL的反
调用者
名称描述
reg_set_min_maxAdjusts the register min/max values in the case that the dst_reg is the* variable register that we are working on, and src_reg is a constant or we're* simply doing a BPF_K check.* In JEQ/JNE cases we also adjust the var_off values.
reg_set_min_max_invSame as above, but for the case that dst_reg holds a constant and src_reg is* the variable reg.