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authorJesper Nilsson <jesper.nilsson@axis.com>2008-01-17 15:21:11 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-01-17 15:38:58 -0800
commitb0e86f0a3b9329bbebadb01ca935208459df18c3 (patch)
treee5c662538c6c35a76d6a11a1e2d8db550e369e4d
parentefe7cf2dcf4b72c7a9f991466d1f22850232244f (diff)
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>
-rw-r--r--arch/cris/arch-v10/vmlinux.lds.S33
-rw-r--r--include/asm-cris/page.h7
2 files changed, 17 insertions, 23 deletions
diff --git a/arch/cris/arch-v10/vmlinux.lds.S b/arch/cris/arch-v10/vmlinux.lds.S
index 9859d49d088..97a7876ed68 100644
--- a/arch/cris/arch-v10/vmlinux.lds.S
+++ b/arch/cris/arch-v10/vmlinux.lds.S
@@ -9,7 +9,8 @@
*/
#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 = .;
}
@@ -88,16 +83,18 @@ 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 */
- __init_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.
+ */
+ . = ALIGN(PAGE_SIZE);
+
+ __init_end = .;
__data_end = . ; /* Move to _edata ? */
__bss_start = .; /* BSS */
diff --git a/include/asm-cris/page.h b/include/asm-cris/page.h
index 0648e3153f8..b84353ef699 100644
--- a/include/asm-cris/page.h
+++ b/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)