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introduce compile time loglevel 

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2012-12-19 15:49:29 +01:00
parent 00c7c8ecab
commit f331ac288f
2 changed files with 54 additions and 28 deletions
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16
common/Kconfig
View File

@ -637,6 +637,22 @@ endmenu
menu "Debugging"
config COMPILE_LOGLEVEL
int "loglevel"
default 6
help
This defines the maximum loglevel compiled into the binary. Less important
messages will be compiled away resulting in a smaller binary.
0 system is unusable (emerg)
1 action must be taken immediately (alert)
2 critical conditions (crit)
3 error conditions (err)
4 warning conditions (warn)
5 normal but significant condition (notice)
6 informational (info)
7 debug-level messages (debug)
config DEBUG_INFO
bool
prompt "enable debug symbols"

66
include/printk.h
View File

@ -10,49 +10,59 @@
#define MSG_INFO 6 /* informational */
#define MSG_DEBUG 7 /* debug-level messages */
#ifdef DEBUG
#define LOGLEVEL MSG_DEBUG
#else
#define LOGLEVEL CONFIG_COMPILE_LOGLEVEL
#endif
/* debugging and troubleshooting/diagnostic helpers. */
int dev_printf(const struct device_d *dev, const char *format, ...)
__attribute__ ((format(__printf__, 2, 3)));
#define __dev_printf(level, dev, format, args...) \
({ \
int ret = 0; \
if (level <= LOGLEVEL) \
ret = dev_printf(dev, format, ##args); \
ret; \
})
#define dev_emerg(dev, format, arg...) \
dev_printf((dev) , format , ## arg)
__dev_printf(0, (dev) , format , ## arg)
#define dev_alert(dev, format, arg...) \
dev_printf((dev) , format , ## arg)
__dev_printf(1, (dev) , format , ## arg)
#define dev_crit(dev, format, arg...) \
dev_printf((dev) , format , ## arg)
__dev_printf(2, (dev) , format , ## arg)
#define dev_err(dev, format, arg...) \
dev_printf(dev , format , ## arg)
__dev_printf(3, (dev) , format , ## arg)
#define dev_warn(dev, format, arg...) \
dev_printf((dev) , format , ## arg)
__dev_printf(4, (dev) , format , ## arg)
#define dev_notice(dev, format, arg...) \
dev_printf((dev) , format , ## arg)
__dev_printf(5, (dev) , format , ## arg)
#define dev_info(dev, format, arg...) \
dev_printf((dev) , format , ## arg)
#if defined(DEBUG)
__dev_printf(6, (dev) , format , ## arg)
#define dev_dbg(dev, format, arg...) \
dev_printf((dev) , format , ## arg)
#else
#define dev_dbg(dev, format, arg...) \
({ if (0) dev_printf((dev), format, ##arg); 0; })
#endif
__dev_printf(7, (dev) , format , ## arg)
#define pr_info(fmt, arg...) printk(fmt, ##arg)
#define pr_notice(fmt, arg...) printk(fmt, ##arg)
#define pr_err(fmt, arg...) printk(fmt, ##arg)
#define pr_warning(fmt, arg...) printk(fmt, ##arg)
#define pr_crit(fmt, arg...) printk(fmt, ##arg)
#define pr_alert(fmt, arg...) printk(fmt, ##arg)
#define pr_emerg(fmt, arg...) printk(fmt, ##arg)
#define __pr_printk(level, format, args...) \
({ \
int ret = 0; \
if (level <= LOGLEVEL) \
ret = printk(format, ##args); \
ret; \
})
#ifdef DEBUG
#define pr_debug(fmt, arg...) printk(fmt, ##arg)
#define debug(fmt, arg...) printf(fmt, ##arg)
#else
#define pr_debug(fmt, arg...) do {} while(0)
#define debug(fmt, arg...) do {} while(0)
#endif
#define pr_emerg(fmt, arg...) __pr_printk(0, fmt, ##arg)
#define pr_alert(fmt, arg...) __pr_printk(1, fmt, ##arg)
#define pr_crit(fmt, arg...) __pr_printk(2, fmt, ##arg)
#define pr_warning(fmt, arg...) __pr_printk(3, fmt, ##arg)
#define pr_err(fmt, arg...) __pr_printk(4, fmt, ##arg)
#define pr_notice(fmt, arg...) __pr_printk(5, fmt, ##arg)
#define pr_info(fmt, arg...) __pr_printk(6, fmt, ##arg)
#define pr_debug(fmt, arg...) __pr_printk(7, fmt, ##arg)
#define debug(fmt, arg...) __pr_printk(7, fmt, ##arg)
#endif