| From | Ben Hutchings <> | Date | Sun, 16 Jul 2017 14:56:46 +0100 | Subject | [PATCH 3.16 016/178] powerpc/boot: Fix zImage TOC alignment |
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3.16.46-rc1 review patch. If anyone has any objections, please let me know.
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From: Michael Ellerman <mpe@ellerman.id.au>
commit 97ee351b50a49717543533cfb85b4bf9d88c9680 upstream.
Recent toolchains force the TOC to be 256 byte aligned. We need to enforce this alignment in the zImage linker script, otherwise pointers to our TOC variables (__toc_start) could be incorrect. If the actual start of the TOC and __toc_start don't have the same value we crash early in the zImage wrapper.
Suggested-by: Alan Modra <amodra@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- arch/powerpc/boot/zImage.lds.S | 1 + 1 file changed, 1 insertion(+)
--- a/arch/powerpc/boot/zImage.lds.S +++ b/arch/powerpc/boot/zImage.lds.S @@ -68,6 +68,7 @@ SECTIONS } #ifdef CONFIG_PPC64_BOOT_WRAPPER + . = ALIGN(256); .got : { __toc_start = .;
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