| From | lizf@kernel ... | Subject | [PATCH 3.4 103/146] powerpc: Align TOC to 256 bytes | Date | Tue, 15 Sep 2015 17:03:38 +0800 |
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From: Anton Blanchard <anton@samba.org>
3.4.109-rc1 review patch. If anyone has any objections, please let me know.
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commit 5e95235ccd5442d4a4fe11ec4eb99ba1b7959368 upstream.
Recent toolchains force the TOC to be 256 byte aligned. We need to enforce this alignment in our linker script, otherwise pointers to our TOC variables (__toc_start, __prom_init_toc_start) could be incorrect.
If they are bad, we die a few hundred instructions into boot.
Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Zefan Li <lizefan@huawei.com> --- arch/powerpc/kernel/vmlinux.lds.S | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index 7703569..6be807d 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -213,6 +213,7 @@ SECTIONS *(.opd) } + . = ALIGN(256); .got : AT(ADDR(.got) - LOAD_OFFSET) { __toc_start = .; *(.got) -- 1.9.1
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