Copied from Linux kernel include/linux/stringify.h: commit 8f7c2c37319a81ef4c2bfdec67b1ccd5744d97e4 Date: Wed Apr 8 16:58:57 2009 +0800
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 <ma...@denx.de> Cc: Wolfgang Denk <w...@denx.de> --- include/common.h | 1 + include/linux/stringify.h | 12 ++++++++++++ 2 files changed, 13 insertions(+) create mode 100644 include/linux/stringify.h V2: Add proper attribution 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 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
