Force all function address 64B aligned
configname: CONFIG_DEBUG_FORCE_FUNCTION_ALIGN_64B
Linux Kernel Configuration
└─>Kernel hacking
└─>Compile-time checks and compiler options
└─>Force all function address 64B aligned
In linux kernel since version 4.14.326 (release Date: 2023-09-23)
There are cases that a commit from one domain changes the function
address alignment of other domains, and cause magic performance
bump (regression or improvement). Enable this option will help to
verify if the bump is caused by function alignment changes, while
it will slightly increase the kernel size and affect icache usage.
It is mainly for debug and performance tuning use.
address alignment of other domains, and cause magic performance
bump (regression or improvement). Enable this option will help to
verify if the bump is caused by function alignment changes, while
it will slightly increase the kernel size and affect icache usage.
It is mainly for debug and performance tuning use.
depends
CONFIG_EXPERTCONFIG_ARC or CONFIG_ARM64 or CONFIG_PPC32 or CONFIG_PPC64 or CONFIG_RISCV or CONFIG_S390 or CONFIG_X86_64