CRIS v10: vmlinux.lds.S: ix kernel oops on boot and use common defines

- Move alignment to page size of init data outside ifdef for BLK_DEV_INITRD.
  The reservation up to page size of memory after init data was previously
  not done if BLK_DEV_INITRD was undefined.
  This caused a kernel oops when init memory pages were freed after startup,
  data placed in the same page as the last init memory would also be freed
  and reused, with disastrous results.

- Use macros for initcalls and .text sections.

- Replace hardcoded page size constant with PAGE_SIZE define.

- Change include/asm-cris/page.h to use the _AC macro to instead
  of testing __ASSEMBLY__.
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Mikael Starvik <mikael.starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/cris/arch-v10/vmlinux.lds.S

@@ -9,6 +9,7 @@
  */	
 
 #include <asm-generic/vmlinux.lds.h>
+#include <asm/page.h>
 
 jiffies = jiffies_64;
 SECTIONS
@@ -23,7 +24,7 @@ SECTIONS
 	_stext = .;
 	__stext = .;
 	.text : {
-		*(.text)
+		TEXT_TEXT
 		SCHED_TEXT
 		LOCK_TEXT
 		*(.fixup)
@@ -49,10 +50,10 @@ SECTIONS
 	__edata = . ;                 /* End of data section */
 	_edata = . ;
 
-	. = ALIGN(8192);              /* init_task and stack, must be aligned */
+	. = ALIGN(PAGE_SIZE);	/* init_task and stack, must be aligned */
   	.data.init_task : { *(.data.init_task) }
 
-  	. = ALIGN(8192);              /* Init code and data */
+	. = ALIGN(PAGE_SIZE);	/* Init code and data */
   	__init_begin = .;
 	.init.text : { 
 		   _sinittext = .;
@@ -66,13 +67,7 @@ SECTIONS
   	__setup_end = .;
   	.initcall.init : {
 		__initcall_start = .;
-		*(.initcall1.init);
-		*(.initcall2.init);
-		*(.initcall3.init);
-		*(.initcall4.init);
-		*(.initcall5.init);
-		*(.initcall6.init);
-		*(.initcall7.init);
+		INITCALLS
 		__initcall_end = .;	
 	}
 
@@ -88,15 +83,17 @@ SECTIONS
 		__initramfs_start = .;
 		*(.init.ramfs)
 		__initramfs_end = .;
-		/* We fill to the next page, so we can discard all init
-		   pages without needing to consider what payload might be
-		   appended to the kernel image.  */
-		FILL (0); 
-		. = ALIGN (8192);
 	}
 #endif
-	
 	__vmlinux_end = .;            /* last address of the physical file */
+
+	/*
+	 * We fill to the next page, so we can discard all init
+	 * pages without needing to consider what payload might be
+	 * appended to the kernel image.
+	 */
+	. = ALIGN(PAGE_SIZE);
+
 	__init_end = .;
 
 	__data_end = . ;              /* Move to _edata ? */

include/asm-cris/page.h

@@ -4,14 +4,11 @@
 #ifdef __KERNEL__
 
 #include <asm/arch/page.h>
+#include <linux/const.h>
 
 /* PAGE_SHIFT determines the page size */
 #define PAGE_SHIFT	13
-#ifndef __ASSEMBLY__
-#define PAGE_SIZE	(1UL << PAGE_SHIFT)
-#else
-#define PAGE_SIZE	(1 << PAGE_SHIFT)
-#endif
+#define PAGE_SIZE	(_AC(1, UL) << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE-1))
 
 #define clear_page(page)        memset((void *)(page), 0, PAGE_SIZE)