On Mon, 3 Mar 2025 14:53:44 +0800 Menglong Dong <menglong8.dong@xxxxxxxxx> wrote: > In the third case, we make the kernel function 32 bytes aligned, and there > will be 32 bytes padding before the functions. According to my testing, > the text size didn't increase on this case, which is weird. > > With 16-bytes padding: > > -rwxr-xr-x 1 401190688 x86-dev/vmlinux* > -rw-r--r-- 1 251068 x86-dev/vmlinux.a > -rw-r--r-- 1 851892992 x86-dev/vmlinux.o > -rw-r--r-- 1 12395008 x86-dev/arch/x86/boot/bzImage > > With 32-bytes padding: > > -rwxr-xr-x 1 401318128 x86-dev/vmlinux* > -rw-r--r-- 1 251154 x86-dev/vmlinux.a > -rw-r--r-- 1 853636704 x86-dev/vmlinux.o > -rw-r--r-- 1 12509696 x86-dev/arch/x86/boot/bzImage Use the "size" command to see the differences in sizes and not the file size. $ size vmlinux text data bss dec hex filename 36892658 9798658 16982016 63673332 3cb93f4 vmlinux -- Steve
