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feat(common/debug): add new macro ERROR_NL() to print just a newline

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Existing macro ERROR() prints string "ERROR" followed by string
specified by caller. Therefore via this existing macro it is not
possible to end incomplete / existing line by a newline character.

This change adds a new macro ERROR_NL() which prints just a newline
character without any prefix. Implementation of this macro is done via a
new function tf_log_newline() which based on supplied log level either
return or print newline character.

If needed in future based on this tf_log_newline() function can be
defined also macros for other log levels.

Signed-off-by: Pali Rohár <pali@kernel.org>
Change-Id: I05414ca177f94cdc0f6077394d9c4af4a4382306
This commit is contained in:
Pali Rohár 2021-07-20 23:57:47 +02:00
parent e2a16044ad
commit fd1360a339
2 changed files with 17 additions and 0 deletions
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14
common/tf_log.c
View File

@ -49,6 +49,20 @@ void tf_log(const char *fmt, ...)
va_end(args);
}
void tf_log_newline(const char log_fmt[2])
{
unsigned int log_level = log_fmt[0];
/* Verify that log_level is one of LOG_MARKER_* macro defined in debug.h */
assert((log_level > 0U) && (log_level <= LOG_LEVEL_VERBOSE));
assert((log_level % 10U) == 0U);
if (log_level > max_log_level)
return;
putchar('\n');
}
/*
* The helper function to set the log level dynamically by platform. The
* maximum log level is determined by `LOG_LEVEL` build flag at compile time

3
include/common/debug.h
View File

@ -61,8 +61,10 @@
#if LOG_LEVEL >= LOG_LEVEL_ERROR
# define ERROR(...) tf_log(LOG_MARKER_ERROR __VA_ARGS__)
# define ERROR_NL() tf_log_newline(LOG_MARKER_ERROR)
#else
# define ERROR(...) no_tf_log(LOG_MARKER_ERROR __VA_ARGS__)
# define ERROR_NL()
#endif
#if LOG_LEVEL >= LOG_LEVEL_NOTICE
@ -109,6 +111,7 @@ void __dead2 do_panic(void);
void __dead2 __stack_chk_fail(void);
void tf_log(const char *fmt, ...) __printflike(1, 2);
void tf_log_newline(const char log_fmt[2]);
void tf_log_set_max_level(unsigned int log_level);
#endif /* __ASSEMBLER__ */