函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\sys_x86_64.c Create Date:2022-07-27 08:41:53
Last Modify:2022-05-18 16:45:21 Copyright©Brick
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函数名称：align_vdso_addr

函数原型：unsigned long align_vdso_addr(unsigned long addr)

返回类型：unsigned long

参数：

类型参数名称
unsigned longaddr
59  align_mask等于Align a virtual address to avoid aliasing in the I$ on AMD F15h.
60  addr等于addr加align_mask按位与align_mask的反
61  返回:addr按位或To avoid aliasing in the I$ on AMD F15h, the bits defined by the* va_align.bits, [12:upper_bit), are set to a random value instead of* zeroing them. This random value is computed once per boot. This form* of ASLR is known as "per-boot ASLR".