From: Thierry Reding treding@nvidia.com
This macro can be overridden in source files (before including common.h) and can be used to specify a prefix for debug and error messages. An example of how to use this is shown below:
#define pr_fmt(fmt) "foo: " fmt
#include <common.h>
... debug("bar");
The resulting message will read:
foo: bar
Acked-by: Simon Glass sjg@chromium.org Signed-off-by: Thierry Reding treding@nvidia.com --- include/common.h | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/include/common.h b/include/common.h index 1d6cb48ff078..65db04b452d7 100644 --- a/include/common.h +++ b/include/common.h @@ -99,15 +99,19 @@ typedef volatile unsigned char vu_char; #define _DEBUG 0 #endif
+#ifndef pr_fmt +#define pr_fmt(fmt) fmt +#endif + /* * Output a debug text when condition "cond" is met. The "cond" should be * computed by a preprocessor in the best case, allowing for the best * optimization. */ -#define debug_cond(cond, fmt, args...) \ - do { \ - if (cond) \ - printf(fmt, ##args); \ +#define debug_cond(cond, fmt, args...) \ + do { \ + if (cond) \ + printf(pr_fmt(fmt), ##args); \ } while (0)
#define debug(fmt, args...) \ @@ -129,7 +133,7 @@ void __assert_fail(const char *assertion, const char *file, unsigned line, __assert_fail(#x, __FILE__, __LINE__, __func__); })
#define error(fmt, args...) do { \ - printf("ERROR: " fmt "\nat %s:%d/%s()\n", \ + printf("ERROR: " pr_fmt(fmt) "\nat %s:%d/%s()\n", \ ##args, __FILE__, __LINE__, __func__); \ } while (0)