From: Tim Abbott <tabbott@MIT.EDU>
To: Sam Ravnborg <sam@ravnborg.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Linux kernel mailing list <linux-kernel@vger.kernel.org>,
Anders Kaseorg <andersk@MIT.EDU>, Waseem Daher <wdaher@MIT.EDU>,
Denys Vlasenko <vda.linux@googlemail.com>,
Jeff Arnold <jbarnold@MIT.EDU>, Paul Mundt <lethal@linux-sh.org>,
Tim Abbott <tabbott@MIT.EDU>, Ingo Molnar <mingo@redhat.com>
Subject: [PATCH 14/14] x86: Use macros for .data.page_aligned.
Date: Mon, 27 Apr 2009 16:33:08 -0400 [thread overview]
Message-ID: <1240864388-26315-15-git-send-email-tabbott@mit.edu> (raw)
In-Reply-To: <1240864388-26315-14-git-send-email-tabbott@mit.edu>
.data.page_aligned should not need a separate output section. So, as
part of this cleanup I moved it into the .data output section in the
linker scripts in order to eliminate unnecessary references to the
section name.
Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: Ingo Molnar <mingo@redhat.com>
---
arch/x86/kernel/head_32.S | 2 +-
arch/x86/kernel/vmlinux_32.lds.S | 6 +-----
arch/x86/kernel/vmlinux_64.lds.S | 6 +-----
3 files changed, 3 insertions(+), 11 deletions(-)
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 9694aee..ad0510d 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -636,7 +636,7 @@ ENTRY(empty_zero_page)
* This starts the data section.
*/
#ifdef CONFIG_X86_PAE
-.section ".data.page_aligned","wa"
+__PAGE_ALIGNED_DATA
/* Page-aligned for the benefit of paravirt? */
.align PAGE_SIZE_asm
ENTRY(swapper_pg_dir)
diff --git a/arch/x86/kernel/vmlinux_32.lds.S b/arch/x86/kernel/vmlinux_32.lds.S
index a57d39c..b458ab4 100644
--- a/arch/x86/kernel/vmlinux_32.lds.S
+++ b/arch/x86/kernel/vmlinux_32.lds.S
@@ -61,6 +61,7 @@ SECTIONS
/* writeable */
. = ALIGN(PAGE_SIZE);
.data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */
+ PAGE_ALIGNED_DATA
DATA_DATA
CONSTRUCTORS
} :data
@@ -73,11 +74,6 @@ SECTIONS
__nosave_end = .;
}
- . = ALIGN(PAGE_SIZE);
- .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
- *(.data.page_aligned)
- }
-
. = ALIGN(32);
.data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
*(.data.cacheline_aligned)
diff --git a/arch/x86/kernel/vmlinux_64.lds.S b/arch/x86/kernel/vmlinux_64.lds.S
index 9b52841..056db9a 100644
--- a/arch/x86/kernel/vmlinux_64.lds.S
+++ b/arch/x86/kernel/vmlinux_64.lds.S
@@ -64,6 +64,7 @@ SECTIONS
. = ALIGN(PAGE_SIZE);
/* Data */
.data : AT(ADDR(.data) - LOAD_OFFSET) {
+ PAGE_ALIGNED_DATA
DATA_DATA
CONSTRUCTORS
/* End of data section */
@@ -157,11 +158,6 @@ SECTIONS
*(.data.init_task)
} :data.init
- .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) {
- . = ALIGN(PAGE_SIZE);
- *(.data.page_aligned)
- }
-
.smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
/* might get freed after init */
. = ALIGN(PAGE_SIZE);
--
1.6.2.1
next prev parent reply other threads:[~2009-04-27 20:35 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-27 20:32 [PATCH 00/14] clean up page aligned data and bss sections Tim Abbott
2009-04-27 20:32 ` [PATCH 01/14] Add new macros for page-aligned " Tim Abbott
2009-04-27 20:32 ` [PATCH 02/14] sh: Use macros for .bss.page_aligned section Tim Abbott
2009-04-27 20:32 ` [PATCH 03/14] mn10300: " Tim Abbott
2009-04-27 20:32 ` [PATCH 04/14] xtensa: " Tim Abbott
2009-04-27 20:32 ` [PATCH 05/14] x86: " Tim Abbott
2009-04-27 20:33 ` [PATCH 06/14] alpha: Use macros for .data.page_aligned Tim Abbott
2009-04-27 20:33 ` [PATCH 07/14] avr32: Use standard macros for .data.page_aligned section Tim Abbott
2009-04-27 20:33 ` [PATCH 08/14] sh: Use " Tim Abbott
2009-04-27 20:33 ` [PATCH 09/14] s390: Use macros for .data.page_aligned Tim Abbott
2009-04-27 20:33 ` [PATCH 10/14] powerpc: Remove unused __page_aligned macro Tim Abbott
2009-04-27 20:33 ` [PATCH 11/14] powerpc: Use macros for .data.page_aligned section Tim Abbott
2009-04-27 20:33 ` [PATCH 12/14] mn10300: Drop unused .data.idt section Tim Abbott
2009-04-27 20:33 ` [PATCH 13/14] x86: Use section .data.page_aligned for the idt_table Tim Abbott
2009-04-27 20:33 ` Tim Abbott [this message]
2009-04-28 4:41 ` [PATCH 12/14] mn10300: Drop unused .data.idt section Cyrill Gorcunov
2009-04-28 4:20 ` [PATCH 11/14] powerpc: Use macros for .data.page_aligned section Tim Abbott
2009-04-28 4:21 ` [PATCH 1/2] powerpc: share .data output section definition between 32 and 64 bits Tim Abbott
2009-04-28 4:21 ` [PATCH 2/2] powerpc: Use macros for .data.page_aligned section Tim Abbott
2009-04-28 15:07 ` [PATCH 11/14] " Stephen Rothwell
2009-04-28 15:13 ` Tim Abbott
2009-04-28 15:17 ` Stephen Rothwell
2009-04-28 7:39 ` [PATCH 09/14] s390: Use macros for .data.page_aligned Cyrill Gorcunov
2009-04-27 21:57 ` [PATCH 08/14] sh: Use macros for .data.page_aligned section Paul Mundt
2009-04-28 14:49 ` [PATCH 07/14] avr32: Use standard " Haavard Skinnemoen
2009-04-27 21:57 ` [PATCH 02/14] sh: Use macros for .bss.page_aligned section Paul Mundt
2009-04-27 23:43 ` [PATCH 03/14] mn10300: " David Howells
2009-04-27 23:48 ` Tim Abbott
2009-04-28 12:45 ` David Howells
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