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COMMON: Add __stringify() function 

Copied from Linux kernel:
commit 8f7c2c37319a81ef4c2bfdec67b1ccd5744d97e4
Date:   Wed Apr 8 16:58:57 2009 +0800

Pull in the __stringify() macro from Linux kernel. This macro is usually used to
convert numbers to strings at preprocessor level, yet it is not limited only to
that. This is useful as it allows higher usage of puts() in favour of printf().

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
utp
Marek Vasut 2012-09-27 17:08:15 +02:00 committed by Tom Rini
parent 868444faa0
commit 9aed508083
2 changed files with 13 additions and 0 deletions
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1
include/common.h
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@ -39,6 +39,7 @@ typedef volatile unsigned char vu_char;
#include <linux/bitops.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/stringify.h>
#include <asm/ptrace.h>
#include <stdarg.h>
#if defined(CONFIG_PCI) && (defined(CONFIG_4xx) && !defined(CONFIG_AP1000))

12
include/linux/stringify.h 100644
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@ -0,0 +1,12 @@
#ifndef __LINUX_STRINGIFY_H
#define __LINUX_STRINGIFY_H
/* Indirect stringification. Doing two levels allows the parameter to be a
* macro itself. For example, compile with -DFOO=bar, __stringify(FOO)
* converts to "bar".
*/
#define __stringify_1(x...) #x
#define __stringify(x...) __stringify_1(x)
#endif /* !__LINUX_STRINGIFY_H */