user_access

函数名称：The "unsafe" user accesses aren't really "unsafe", but the naming* is a big fat warning: you have to not only do the access_ok()* checking before using them, but you have to surround them with the* user_access_begin/end() pair.

函数原型：static __must_check __always_inline bool user_access_begin(const void __user *ptr, size_t len)

返回类型：bool

参数：

类型	参数	名称
const void __user *	ptr
size_t	len

714

如果此条件成立可能性小(为编译器优化)(!access_ok - Checks if a user space pointer is valid*@addr: User space pointer to start of block to check*@size: Size of block to check* Context: User context only. This function may sleep if pagefaults are* enabled.(ptr, len))则返回:0

716

__uaccess_begin_nospec()

717

返回:1

**调用者**
名称	描述
check_zeroed_user	heck_zeroed_user: check if a userspace buffer only contains zero bytes*@from: Source address, in userspace
strncpy_from_user	复制用户字符串
strnlen_user	用户字符串长度
SYSCALL_DEFINE5
COMPAT_SYSCALL_DEFINE5
compat_get_bitmap
compat_put_bitmap
filldir
filldir64

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