From 0fa63ad7d1450a7ea2b5e5f60bbc64f5ed5a5adc Mon Sep 17 00:00:00 2001
From: Bernd Schmidt <bernd.schmidt@analog.com>
Date: Wed, 25 Jul 2007 10:19:59 +0800
Subject: [PATCH] Blackfin arch: fix bug which unaligns the init thread's stack
 and causes the current macro to fail.

switch to using proper defines this time (THREAD_SIZE and PAGE_SIZE)
instead of just PAGE_SIZE everywhere

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 arch/blackfin/kernel/vmlinux.lds.S | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S
index d06f860f47..fb53780247 100644
--- a/arch/blackfin/kernel/vmlinux.lds.S
+++ b/arch/blackfin/kernel/vmlinux.lds.S
@@ -32,6 +32,7 @@
 #include <asm-generic/vmlinux.lds.h>
 #include <asm/mem_map.h>
 #include <asm/page.h>
+#include <asm/thread_info.h>
 
 OUTPUT_FORMAT("elf32-bfin")
 ENTRY(__start)
@@ -64,8 +65,12 @@ SECTIONS
 
 	.data :
 	{
-		. = ALIGN(PAGE_SIZE);
+		/* make sure the init_task is aligned to the
+		 * kernel thread size so we can locate the kernel
+		 * stack properly and quickly.
+		 */
 		__sdata = .;
+		. = ALIGN(THREAD_SIZE);
 		*(.data.init_task)
 		DATA_DATA
 		CONSTRUCTORS
@@ -73,14 +78,14 @@ SECTIONS
 		. = ALIGN(32);
 		*(.data.cacheline_aligned)
 
-		. = ALIGN(PAGE_SIZE);
+		. = ALIGN(THREAD_SIZE);
 		__edata = .;
 	}
 
-	. = ALIGN(PAGE_SIZE);
 	___init_begin = .;
 	.init :
 	{
+		. = ALIGN(PAGE_SIZE);
 		__sinittext = .;
 		*(.init.text)
 		__einittext = .;
@@ -153,10 +158,9 @@ SECTIONS
 		__ebss_b_l1 = .;
 	}
 
-	. = LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1);
-	___init_end = ALIGN(PAGE_SIZE);
+	___init_end = LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1);
 
-	.bss ___init_end :
+	.bss LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1) :
 	{
 		. = ALIGN(4);
 		___bss_start = .;
-- 
2.11.4.GIT