From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matt Fleming Subject: [PATCH 05/13] arm64: vmlinux.lds.S: Handle .init.rodata.xxx and .init.bss sections Date: Wed, 17 Feb 2016 12:35:58 +0000 Message-ID: <1455712566-16727-6-git-send-email-matt@codeblueprint.co.uk> References: <1455712566-16727-1-git-send-email-matt@codeblueprint.co.uk> Return-path: In-Reply-To: <1455712566-16727-1-git-send-email-matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org> Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Ingo Molnar , Thomas Gleixner , "H . Peter Anvin" Cc: Ard Biesheuvel , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Matt Fleming , Mark Rutland , Will Deacon List-Id: linux-efi@vger.kernel.org From: Ard Biesheuvel The EFI stub is typically built into the decompressor (x86, ARM) so none of its symbols are annotated as __init. However, on arm64, the stub is linked into the kernel proper, and the code is __init annotated at the section level by prepending all names of SHF_ALLOC sections with '.init'. This results in section names like .init.rodata.str1.8 (for string literals) and .init.bss (which is tiny), both of which can be moved into the .init.data output section. Acked-by: Will Deacon Acked-by: Mark Rutland Tested-by: Mark Rutland Signed-off-by: Ard Biesheuvel Signed-off-by: Matt Fleming --- arch/arm64/kernel/vmlinux.lds.S | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S index e3928f578891..cbf4db440e9c 100644 --- a/arch/arm64/kernel/vmlinux.lds.S +++ b/arch/arm64/kernel/vmlinux.lds.S @@ -134,6 +134,7 @@ SECTIONS CON_INITCALL SECURITY_INITCALL INIT_RAM_FS + *(.init.rodata.* .init.bss) /* from the EFI stub */ } .exit.data : { ARM_EXIT_KEEP(EXIT_DATA) -- 2.6.2