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Add pr_fmt() macro

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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>
Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Thierry Reding 2014-11-12 18:26:50 -07:00 committed by Tom Rini
parent 4efe52bf23
commit be25d875b9
1 changed files with 9 additions and 5 deletions
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8
include/common.h
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@ -97,6 +97,10 @@ 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
@ -105,7 +109,7 @@ typedef volatile unsigned char vu_char;
#define debug_cond(cond, fmt, args...) \
do { \
if (cond) \
printf(fmt, ##args); \
printf(pr_fmt(fmt), ##args); \
} while (0)
#define debug(fmt, args...) \
@ -127,7 +131,7 @@ 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)