acquire_reference

函数名称：Acquire a pointer id from the env and update the state->refs to include* this new pointer reference.* On success, returns a valid pointer id to associate with the register* On failure, returns a negative errno.

函数原型：static int acquire_reference_state(struct bpf_verifier_env *env, int insn_idx)

返回类型：int

参数：

类型	参数	名称
struct bpf_verifier_env *	env
int	insn_idx

677

state等于cur_func(env)

678

new_ofs等于The following fields should be last. See copy_func_state()

681

err等于alloc_reference_state()

682

如果err则返回:err

684

id等于used to generate unique reg IDs 先自加

685

Track each reference created with a unique id, even if the same * instruction creates the reference multiple times (eg, via CALL).等于id

686

Instruction where the allocation of this reference occurred. This * is used purely to inform the user of a reference leak.等于insn_idx

688

返回:id

**调用者**
名称	描述
check_helper_call

源代码转换工具开放的插件接口	X
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

函数逻辑报告