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* [U-Boot] [PATCH 1/3] COMMON: Add __stringify() function
@ 2012-08-08 10:52 Marek Vasut
  2012-08-08 10:52 ` [U-Boot] [PATCH 2/3] COMMON: Use __stringify() instead of xstr() Marek Vasut
                   ` (5 more replies)
  0 siblings, 6 replies; 19+ messages in thread
From: Marek Vasut @ 2012-08-08 10:52 UTC (permalink / raw)
  To: u-boot

This function converts static number to string in preprocessor.
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>
---
 include/common.h          |    1 +
 include/linux/stringify.h |   12 ++++++++++++
 2 files changed, 13 insertions(+)
 create mode 100644 include/linux/stringify.h

diff --git a/include/common.h b/include/common.h
index 39859d3..8f596ec 100644
--- a/include/common.h
+++ b/include/common.h
@@ -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))
diff --git a/include/linux/stringify.h b/include/linux/stringify.h
new file mode 100644
index 0000000..841cec8
--- /dev/null
+++ b/include/linux/stringify.h
@@ -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 */
-- 
1.7.10.4

^ permalink raw reply related	[flat|nested] 19+ messages in thread

end of thread, other threads:[~2012-08-10 21:23 UTC | newest]

Thread overview: 19+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-08-08 10:52 [U-Boot] [PATCH 1/3] COMMON: Add __stringify() function Marek Vasut
2012-08-08 10:52 ` [U-Boot] [PATCH 2/3] COMMON: Use __stringify() instead of xstr() Marek Vasut
2012-08-08 15:18   ` Mike Frysinger
2012-08-10 20:22   ` Anatolij Gustschin
2012-08-08 10:52 ` [U-Boot] [PATCH 3/3] COMMON: Use __stringify() instead of MK_STR() Marek Vasut
2012-08-08 15:17   ` Mike Frysinger
2012-08-10 20:26   ` Anatolij Gustschin
2012-08-10 21:17   ` Anatolij Gustschin
2012-08-10 21:20     ` Marek Vasut
2012-08-08 15:16 ` [U-Boot] [PATCH 1/3] COMMON: Add __stringify() function Mike Frysinger
2012-08-08 15:21 ` Mike Frysinger
2012-08-08 16:01   ` Marek Vasut
2012-08-09  2:08     ` Mike Frysinger
2012-08-10 20:21 ` Anatolij Gustschin
2012-08-10 20:45   ` Wolfgang Denk
2012-08-10 20:52     ` Marek Vasut
2012-08-10 21:20     ` Anatolij Gustschin
2012-08-10 21:23       ` Marek Vasut
2012-08-10 20:51 ` [U-Boot] [PATCH 1/3 V2] " Marek Vasut

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