kernel_read

函数名称：kernel_read

函数原型：ssize_t kernel_read(struct file *file, void *buf, size_t count, loff_t *pos)

返回类型：ssize_t

参数：

**调用者**
名称	描述
kernel_read_file
prepare_binprm	Fill the binprm structure from the inode.* Check permissions, then read the first BINPRM_BUF_SIZE bytes* This may be called multiple times for binary chains (scripts for example).
load_aout_library
load_misc_binary	he loader itself
elf_read
elf_fdpic_fetch_phdrs	ad the program headers table into memory
load_elf_fdpic_binary	load an fdpic binary into various bits of memory
do_mmap_private	set up a private mapping or an anonymous shared mapping

函数逻辑报告