linux-kernel - [PATCH 3.2 125/149] m68k: use non-MMU linker script for ColdFire MMU builds

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Date:	Mon, 21 Oct 2013 09:46:28 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:	akpm@...ux-foundation.org, "Matt Waddel" <mwaddel@...oo.com>,
	"Geert Uytterhoeven" <geert@...ux-m68k.org>,
	"Greg Ungerer" <gerg@...inux.org>,
	"Kurt Mahan" <kmahan@...ssion.com>
Subject: [PATCH 3.2 125/149] m68k: use non-MMU linker script for ColdFire
 MMU builds

3.2.52-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Greg Ungerer <gerg@...inux.org>

commit ed865e31a8273be200db9ddcdb6b844e48777abd upstream.

Use the non-MMU linker script for ColdFire builds when we are building
for MMU enabled. The image layout is correct for loading on existing
ColdFire dev boards. The only addition required to the current non-MMU
linker script is to add support for the fixup section.

Signed-off-by: Greg Ungerer <gerg@...inux.org>
Acked-by: Geert Uytterhoeven <geert@...ux-m68k.org>
Acked-by: Matt Waddel <mwaddel@...oo.com>
Acked-by: Kurt Mahan <kmahan@...ssion.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 arch/m68k/kernel/vmlinux-nommu.lds | 8 ++++++++
 arch/m68k/kernel/vmlinux.lds.S     | 2 +-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/m68k/kernel/vmlinux-nommu.lds b/arch/m68k/kernel/vmlinux-nommu.lds
index 4e23893..8e66ccb 100644
--- a/arch/m68k/kernel/vmlinux-nommu.lds
+++ b/arch/m68k/kernel/vmlinux-nommu.lds
@@ -69,6 +69,7 @@ SECTIONS {
 		SCHED_TEXT
 		LOCK_TEXT
 		*(.text..lock)
+		*(.fixup)
 
 		. = ALIGN(16);          /* Exception table              */
 		__start___ex_table = .;
@@ -161,6 +162,13 @@ SECTIONS {
 		_edata = . ;
 	} > DATA
 
+	.m68k_fixup : {
+		__start_fixup = .;
+		*(.m68k_fixup)
+		__stop_fixup = .;
+	} > DATA
+	NOTES > DATA
+
 	.init.text : {
 		. = ALIGN(PAGE_SIZE);
 		__init_begin = .;
diff --git a/arch/m68k/kernel/vmlinux.lds.S b/arch/m68k/kernel/vmlinux.lds.S
index 3d99a04..69ec796 100644
--- a/arch/m68k/kernel/vmlinux.lds.S
+++ b/arch/m68k/kernel/vmlinux.lds.S
@@ -1,4 +1,4 @@
-#ifdef CONFIG_MMU
+#if defined(CONFIG_MMU) && !defined(CONFIG_COLDFIRE)
 PHDRS
 {
   text PT_LOAD FILEHDR PHDRS FLAGS (7);

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