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Patch "powerpc: Align TOC to 256 bytes" has been added to the 4.0-stable tree

PATCH [email protected] 1 participant 1 message Jun 3, 2015

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This is a note to let you know that I've just added the patch titled

powerpc: Align TOC to 256 bytes

to the 4.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
powerpc-align-toc-to-256-bytes.patch
and it can be found in the queue-4.0 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 5e95235ccd5442d4a4fe11ec4eb99ba1b7959368 Mon Sep 17 00:00:00 2001

From: Anton Blanchard <[email protected]>
Date: Thu, 14 May 2015 14:45:40 +1000
Subject: powerpc: Align TOC to 256 bytes

From: Anton Blanchard <[email protected]>

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.

---
 arch/powerpc/kernel/vmlinux.lds.S |    1 +
 1 file changed, 1 insertion(+)
arch/powerpc/kernel/vmlinux.lds.S +1 -0
@@ -213,6 +213,7 @@ SECTIONS
 		*(.opd)
 	}
 
+	. = ALIGN(256);
 	.got : AT(ADDR(.got) - LOAD_OFFSET) {
 		__toc_start = .;
 #ifndef CONFIG_RELOCATABLE

Patches currently in stable-queue which might be from [email protected] are

queue-4.0/powerpc-align-toc-to-256-bytes.patch