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From 7d4d16a6ccdd6d965b84284262a67d5b63426d50 Mon Sep 17 00:00:00 2001
From: Zhenhua Luo <zhenhua.luo@freescale.com>
Date: Mon, 9 Nov 2015 04:36:29 -0600
Subject: [PATCH] powerpc: Align TOC to 256 bytes
Recent toolchains(gcc-5.2) 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.
Upstream-Status: Backport
Backport from https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5e95235
Signed-off-by: Zhenhua Luo <zhenhua.luo@freescale.com>
---
arch/powerpc/kernel/vmlinux.lds.S | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index f096e72..3266864 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -213,6 +213,8 @@ SECTIONS
*(.opd)
}
+ . = ALIGN(256);
+
.got : AT(ADDR(.got) - LOAD_OFFSET) {
__toc_start = .;
#ifndef CONFIG_RELOCATABLE
--
2.3.3
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