diff mbox

[U-Boot,1/2] nds32: add linkage support

Message ID 1322640403-9927-1-git-send-email-macpaul@andestech.com
State Superseded
Delegated to: Macpaul Lin
Headers show

Commit Message

Macpaul Lin Nov. 30, 2011, 8:06 a.m. UTC
Add linkage support.

Signed-off-by: Macpaul Lin <macpaul@andestech.com>
---
 arch/nds32/include/asm/linkage.h |   31 +++++++++++++++++++++++++++++++
 1 files changed, 31 insertions(+), 0 deletions(-)
 create mode 100644 arch/nds32/include/asm/linkage.h

Comments

Mike Frysinger Nov. 30, 2011, 4:32 p.m. UTC | #1
On Wednesday 30 November 2011 03:06:42 Macpaul Lin wrote:
> Add linkage support.

let's add this to our linux/linkage.h:
#ifndef __ALIGN
#define __ALIGN     .align 4
#define __ALIGN_STR ".align 4"
#endif

i think most arches will be this way
-mike
Macpaul Lin Dec. 1, 2011, 2:29 a.m. UTC | #2
Hi Mike,

2011/12/1 Mike Frysinger <vapier@gentoo.org>

> On Wednesday 30 November 2011 03:06:42 Macpaul Lin wrote:
> > Add linkage support.
>
> let's add this to our linux/linkage.h:
> #ifndef __ALIGN
> #define __ALIGN     .align 4
> #define __ALIGN_STR ".align 4"
> #endif
>
> i think most arches will be this way
> -mike
>

I'm not sure for this because I've found there exists different
configurations for other
architectures in Linux.
For example,
../../../arch/arm/include/asm/linkage.h:4:#define __ALIGN .align 0
../../../arch/arm/include/asm/linkage.h:5:#define __ALIGN_STR ".align 0"
../../../arch/avr32/include/asm/linkage.h:4:#define __ALIGN .balign 2
../../../arch/avr32/include/asm/linkage.h:5:#define __ALIGN_STR ".balign 2"
../../../arch/score/include/asm/linkage.h:4:#define __ALIGN .align 2
../../../arch/score/include/asm/linkage.h:5:#define __ALIGN_STR ".align 2"
Mike Frysinger Dec. 1, 2011, 2:36 a.m. UTC | #3
On Wednesday 30 November 2011 21:29:02 Macpaul Lin wrote:
> 2011/12/1 Mike Frysinger <vapier@gentoo.org>
> > On Wednesday 30 November 2011 03:06:42 Macpaul Lin wrote:
> > > Add linkage support.
> > 
> > let's add this to our linux/linkage.h:
> > #ifndef __ALIGN
> > #define __ALIGN     .align 4
> > #define __ALIGN_STR ".align 4"
> > #endif
> > 
> > i think most arches will be this way
> 
> I'm not sure for this because I've found there exists different
> configurations for other
> architectures in Linux.

more than half will use ".align 4".  for the few that do not, they can still 
define __ALIGN themselves, and thus the "#ifndef __ALIGN" i quoted above will 
keep it from executing.
-mike
Macpaul Lin Dec. 1, 2011, 2:38 a.m. UTC | #4
Hi Mike,


> more than half will use ".align 4".  for the few that do not, they can
> still
> define __ALIGN themselves, and thus the "#ifndef __ALIGN" i quoted above
> will
> keep it from executing.
> -mike
>

Good! I will fix this up ASAP. :-)
diff mbox

Patch

diff --git a/arch/nds32/include/asm/linkage.h b/arch/nds32/include/asm/linkage.h
new file mode 100644
index 0000000..9d6edd9
--- /dev/null
+++ b/arch/nds32/include/asm/linkage.h
@@ -0,0 +1,31 @@ 
+/*
+ * U-boot - linkage.h
+ *
+ * Copyright (c) 2005-2007 Analog Devices Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#ifndef __ASM_LINKAGE_H
+#define __ASM_LINKAGE_H
+
+#define __ALIGN .align		4
+#define __ALIGN_STR		".align 4"
+
+#endif