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Groups > linux.kernel > #1340468
| From | tip-bot for Ard Biesheuvel <tipbot@zytor.com>@zytor.com |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [tip:efi/core] arm64/vmlinux.lds.S: Handle .init.rodata.xxx and .init.bss sections |
| Date | 2016-02-23 10:30 +0100 |
| Message-ID | <r5hs7-3h5-35@gated-at.bofh.it> (permalink) |
| References | <r39yG-6rV-21@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Commit-ID: 1ce99bf45306ba889faadced6baabebf7770c546
Gitweb: http://git.kernel.org/tip/1ce99bf45306ba889faadced6baabebf7770c546
Author: Ard Biesheuvel <ard.biesheuvel@linaro.org>
AuthorDate: Wed, 17 Feb 2016 12:35:58 +0000
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Mon, 22 Feb 2016 08:26:26 +0100
arm64/vmlinux.lds.S: Handle .init.rodata.xxx and .init.bss sections
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.
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1455712566-16727-6-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
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 e3928f5..cbf4db4 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)
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[GIT PULL 00/13] EFI changes for v4.6 part 2 Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-17 13:40 +0100
[PATCH 08/13] efi/arm: Check for LPAE support before booting a LPAE kernel Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-17 13:40 +0100
[tip:efi/core] efi/arm: Check for LPAE support before booting a LPAE kernel tip-bot for Ard Biesheuvel <tipbot@zytor.com>@zytor.com - 2016-02-23 10:30 +0100
[PATCH 11/13] x86/mm/pageattr: Don't implicitly allow _PAGE_RW in kernel_map_pages_in_pgd() Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-17 13:40 +0100
[tip:efi/core] x86/mm/pat: Don't implicitly allow _PAGE_RW in kernel_map_pages_in_pgd() tip-bot for Sai Praneeth <tipbot@zytor.com>@zytor.com - 2016-02-23 10:20 +0100
[PATCH 05/13] arm64: vmlinux.lds.S: Handle .init.rodata.xxx and .init.bss sections Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-17 13:40 +0100
[tip:efi/core] arm64/vmlinux.lds.S: Handle .init.rodata.xxx and .init.bss sections tip-bot for Ard Biesheuvel <tipbot@zytor.com>@zytor.com - 2016-02-23 10:30 +0100
[PATCH 03/13] x86/mm/pageattr: Use _PAGE_GLOBAL bit for EFI page table mappings Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-17 13:40 +0100
[tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings tip-bot for Sai Praneeth <tipbot@zytor.com>@zytor.com - 2016-02-23 10:20 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Andy Lutomirski <luto@amacapital.net> - 2016-02-23 18:50 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Linus Torvalds <torvalds@linux-foundation.org> - 2016-02-23 19:10 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Borislav Petkov <bp@alien8.de> - 2016-02-23 19:20 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings "H. Peter Anvin" <hpa@zytor.com> - 2016-02-24 03:20 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings "H. Peter Anvin" <hpa@zytor.com> - 2016-02-24 03:20 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Ingo Molnar <mingo@kernel.org> - 2016-02-25 10:00 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com> - 2016-02-24 02:00 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Andy Lutomirski <luto@amacapital.net> - 2016-02-24 03:50 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-24 15:20 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Borislav Petkov <bp@alien8.de> - 2016-02-24 17:30 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Andy Lutomirski <luto@amacapital.net> - 2016-02-24 17:40 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Linus Torvalds <torvalds@linux-foundation.org> - 2016-02-24 20:00 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-24 20:50 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Andy Lutomirski <luto@amacapital.net> - 2016-02-24 21:00 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Sylvain Chouleur <sylvain.chouleur@gmail.com> - 2016-02-29 12:00 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Matt Fleming <matt@codeblueprint.co.uk> - 2016-03-02 12:30 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-24 20:40 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Andy Lutomirski <luto@amacapital.net> - 2016-02-24 21:00 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Ingo Molnar <mingo@kernel.org> - 2016-02-25 10:10 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-25 16:30 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Andy Lutomirski <luto@amacapital.net> - 2016-02-24 17:50 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Borislav Petkov <bp@alien8.de> - 2016-02-24 17:50 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Andy Lutomirski <luto@amacapital.net> - 2016-02-24 17:50 +0100
Re: [tip:efi/core] x86/mm/pat: Use _PAGE_GLOBAL bit for EFI page table mappings Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-25 17:10 +0100
[PATCH 07/13] efi/arm-init: Use read-only early mappings Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-17 13:40 +0100
[tip:efi/core] efi/arm-init: Use read-only early mappings tip-bot for Ard Biesheuvel <tipbot@zytor.com>@zytor.com - 2016-02-23 10:30 +0100
[PATCH 06/13] efi/efistub: Prevent __init annotations from being used Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-17 13:40 +0100
[tip:efi/core] efi/efistub: Prevent __init annotations from being used tip-bot for Ard Biesheuvel <tipbot@zytor.com>@zytor.com - 2016-02-23 10:10 +0100
[PATCH 02/13] efi/runtime-wrappers: Run UEFI Runtime Services with interrupts enabled Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-17 13:40 +0100
[tip:efi/core] efi/runtime-wrappers: Run UEFI Runtime Services with interrupts enabled tip-bot for Ard Biesheuvel <tipbot@zytor.com>@zytor.com - 2016-02-23 10:30 +0100
[PATCH 13/13] x86/efi: Only map kernel text for EFI mixed mode Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-17 13:40 +0100
[tip:efi/core] x86/efi: Only map kernel text for EFI mixed mode tip-bot for Sai Praneeth <tipbot@zytor.com>@zytor.com - 2016-02-23 10:20 +0100
[PATCH 12/13] x86/efi: Map EFI_MEMORY_{XP,RO} memory region bits to EFI page tables Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-17 13:40 +0100
[tip:efi/core] x86/efi: Map EFI_MEMORY_{XP,RO} memory region bits to EFI page tables tip-bot for Sai Praneeth <tipbot@zytor.com>@zytor.com - 2016-02-23 10:20 +0100
[PATCH 10/13] efi/arm*: Perform hardware compatibility check Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-17 13:40 +0100
[tip:efi/core] efi/arm*: Perform hardware compatibility check tip-bot for Ard Biesheuvel <tipbot@zytor.com>@zytor.com - 2016-02-23 10:30 +0100
[PATCH 09/13] efi/arm64: Check for h/w support before booting a >4 KB granule kernel Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-17 13:40 +0100
[tip:efi/core] efi/arm64: Check for h/w support before booting a >4 KB granular kernel tip-bot for Ard Biesheuvel <tipbot@zytor.com>@zytor.com - 2016-02-23 10:30 +0100
[PATCH 01/13] efi: Reformat GUID tables to follow the format in UEFI spec Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-17 13:50 +0100
[tip:efi/core] efi: Reformat GUID tables to follow the format in UEFI spec tip-bot for Peter Jones <tipbot@zytor.com>@zytor.com - 2016-02-23 10:30 +0100
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