函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\module.c Create Date:2022-07-27 11:58:46
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：__symbol_get

函数原型：void *__symbol_get(const char *symbol)

返回类型：void

参数：

类型参数名称
const char *symbol
2246  禁止抢占()
2247  sym等于Find an exported symbol and return it, along with, (optional) crc and* (optional) module which owns it. Needs preempt disabled or module_mutex.
2248  如果sym且We require a truly strong try_module_get(): 0 means success.* Otherwise an error is returned due to ongoing or failed* initialization etc.则sym = NULL
2250  禁用抢占和中断()
2252  返回:sym ? kernel_symbol_value(sym) : NULL