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spl: Add support for logging in SPL and TPL

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It is sometimes useful to log information in SPL and TPL. Add support for
this.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2018-11-15 18:43:49 -07:00
committed by Tom Rini
parent 734e207c5e
commit 4d8d3056f8
4 changed files with 60 additions and 6 deletions
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19
include/log.h
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@@ -108,6 +108,8 @@ int _log(enum log_category_t cat, enum log_level_t level, const char *file,
#define log_io(_fmt...)
#endif
#if CONFIG_IS_ENABLED(LOG)
/* Emit a log record if the level is less that the maximum */
#define log(_cat, _level, _fmt, _args...) ({ \
int _l = _level; \
@@ -116,6 +118,9 @@ int _log(enum log_category_t cat, enum log_level_t level, const char *file,
__func__, \
pr_fmt(_fmt), ##_args); \
})
#else
#define log(_cat, _level, _fmt, _args...)
#endif
#ifdef DEBUG
#define _DEBUG 1
@@ -175,7 +180,16 @@ void __assert_fail(const char *assertion, const char *file, unsigned int line,
({ if (!(x) && _DEBUG) \
__assert_fail(#x, __FILE__, __LINE__, __func__); })
#ifdef CONFIG_LOG_ERROR_RETURN
#if CONFIG_IS_ENABLED(LOG) && defined(CONFIG_LOG_ERROR_RETURN)
/*
* Log an error return value, possibly with a message. Usage:
*
* return log_ret(fred_call());
*
* or:
*
* return log_msg_ret("fred failed", fred_call());
*/
#define log_ret(_ret) ({ \
int __ret = (_ret); \
if (__ret < 0) \
@@ -190,8 +204,9 @@ void __assert_fail(const char *assertion, const char *file, unsigned int line,
__ret; \
})
#else
/* Non-logging versions of the above which just return the error code */
#define log_ret(_ret) (_ret)
#define log_msg_ret(_msg, _ret) (_ret)
#define log_msg_ret(_msg, _ret) ((void)(_msg), _ret)
#endif
/**