Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.10 13/27] powerpc/boot: Fix zImage TOC alignment | Date | Fri, 24 Mar 2017 18:58:31 +0100 |
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4.10-stable 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- 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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