函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\fpu\init.c Create Date:2022-07-27 08:49:07
Last Modify:2020-03-12 14:18:49 Copyright©Brick
首页 函数Tree
注解内核,赢得工具下载SCCTEnglish

函数名称：We parse fpu parameters early because fpu__init_system() is executed* before parse_early_param().

函数原型：static void __init fpu__init_parse_early_param(void)

返回类型：void

参数：无

246  argptr等于arg
250  如果命令行查找选项则打印错误信息("Option 'no387' required CONFIG_MATH_EMULATION enabled.\n")
257  如果命令行查找选项则setup_clear_cpu_cap(FXSAVE/FXRSTOR, CR4.OSFXSR )
261  如果命令行查找选项则setup_clear_cpu_cap(XSAVE/XRSTOR/XSETBV/XGETBV instructions )
264  如果命令行查找选项则setup_clear_cpu_cap(XSAVEOPT instruction )
267  如果命令行查找选项则setup_clear_cpu_cap(XSAVES/XRSTORS instructions )
270  如果命令行查找参数且get_option - Parse integer from an option string*@str: option string*@pint: (output) integer value parsed from @str* Read an int from an option string; if available accept a subsequent* comma as well且bit大于等于0且bit小于N 32-bit words worth of info 乘32则setup_clear_cpu_cap(bit)
调用者
名称描述
fpu__init_systemCalled on the boot CPU once per system bootup, to set up the initial* FPU state that is later cloned into all processes: