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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2016-02-17 13:35:58 +0100
committerIngo Molnar <mingo@kernel.org>2016-02-22 08:26:26 +0100
commit1ce99bf45306ba889faadced6baabebf7770c546 (patch)
tree2b88796ad3dd71167266dbb85468e0e93d5de00f
parentefi/arm64: Drop __init annotation from handle_kernel_image() (diff)
downloadlinux-1ce99bf45306ba889faadced6baabebf7770c546.tar.xz
linux-1ce99bf45306ba889faadced6baabebf7770c546.zip
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>
-rw-r--r--arch/arm64/kernel/vmlinux.lds.S1
1 files changed, 1 insertions, 0 deletions
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)