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log: Add helpers for common log levels

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At present to output a log message you need something like:

   log(UCLASS_SPI, LOCL_INFO, "message1");
   log(UCLASS_SPI, LOCL_INFO, "message2");

but many files use the same category throughout. Also it is helpful to
shorten the length of log names, providing helpers for common logging
levels. Add some macros so that it is possible to do:

   (top of file, before #includes)
   #define LOG_CATEGORY UCLASS_SPI

   (later in the file)
   log_info("message1");
   log_debug("message2");
   log_err("message3");

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2018-10-01 11:55:06 -06:00
parent fbcf37e48e
commit cdd140af5c
4 changed files with 34 additions and 0 deletions
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1
configs/sandbox_flattree_defconfig
View file

@ -15,6 +15,7 @@ CONFIG_BOOTSTAGE_STASH_SIZE=0x4096
CONFIG_CONSOLE_RECORD=y
CONFIG_CONSOLE_RECORD_OUT_SIZE=0x1000
CONFIG_SILENT_CONSOLE=y
CONFIG_LOG_MAX_LEVEL=6
CONFIG_DISPLAY_BOARDINFO_LATE=y
CONFIG_CMD_CPU=y
CONFIG_CMD_LICENSE=y

14
include/log.h
View file

@ -88,8 +88,22 @@ int _log(enum log_category_t cat, enum log_level_t level, const char *file,
*/
#if CONFIG_IS_ENABLED(LOG)
#define _LOG_MAX_LEVEL CONFIG_VAL(LOG_MAX_LEVEL)
#define log_err(_fmt...) log(LOG_CATEGORY, LOGL_ERR, ##_fmt)
#define log_warning(_fmt...) log(LOG_CATEGORY, LOGL_WARNING, ##_fmt)
#define log_notice(_fmt...) log(LOG_CATEGORY, LOGL_NOTICE, ##_fmt)
#define log_info(_fmt...) log(LOG_CATEGORY, LOGL_INFO, ##_fmt)
#define log_debug(_fmt...) log(LOG_CATEGORY, LOGL_DEBUG, ##_fmt)
#define log_content(_fmt...) log(LOG_CATEGORY, LOGL_DEBUG_CONTENT, ##_fmt)
#define log_io(_fmt...) log(LOG_CATEGORY, LOGL_DEBUG_IO, ##_fmt)
#else
#define _LOG_MAX_LEVEL LOGL_INFO
#define log_err(_fmt...)
#define log_warning(_fmt...)
#define log_notice(_fmt...)
#define log_info(_fmt...)
#define log_debug(_fmt...)
#define log_content(_fmt...)
#define log_io(_fmt...)
#endif
/* Emit a log record if the level is less that the maximum */

13
test/log/log_test.c
View file

@ -181,6 +181,19 @@ static int log_test(int testnum)
return ret;
break;
}
case 10: {
log_err("level %d\n", LOGL_EMERG);
log_err("level %d\n", LOGL_ALERT);
log_err("level %d\n", LOGL_CRIT);
log_err("level %d\n", LOGL_ERR);
log_warning("level %d\n", LOGL_WARNING);
log_notice("level %d\n", LOGL_NOTICE);
log_info("level %d\n", LOGL_INFO);
log_debug("level %d\n", LOGL_DEBUG);
log_content("level %d\n", LOGL_DEBUG_CONTENT);
log_io("level %d\n", LOGL_DEBUG_IO);
break;
}
}
return 0;

6
test/py/tests/test_log.py
View file

@ -85,6 +85,11 @@ def test_log(u_boot_console):
lines = run_test(9)
check_log_entries(lines, 3)
def test10():
lines = run_test(10)
for i in range(7):
assert 'log_test() level %d' % i == lines.next()
# TODO(sjg@chromium.org): Consider structuring this as separate tests
cons = u_boot_console
test0()
@ -97,6 +102,7 @@ def test_log(u_boot_console):
test7()
test8()
test9()
test10()
@pytest.mark.buildconfigspec('cmd_log')
def test_log_format(u_boot_console):