mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-05 20:54:31 +00:00
b44b30260f
When we import code from Linux, with regular re-sync planned, we want to use printk() and pr_*(). U-Boot does not support them in a clean way. So, people end up with local macros, or compat headers here and there, then we occasionally see build errors of definition conflicts. We have include/linux/compat.h, but putting all sorts of unrelated things into a single header is just a temporal workaround. Hence this patch, to find the best home for all printk variants. If you want to use printk() and friends, please include <linux/printk.h>. This header is self-contained, and pulls in only a few headers. When I was testing this clean-up, I noticed the image size exceeded its platform limit on some boards. This is because all pr_*() that were previously defined as no-op in include/linux/mtd/mtd.h (unless CONFIG_MTD_DEBUG is set), are now enabled. To make such boards happy, this commit also implements CONFIG_LOGLEVEL. The concept is similar to the kernel parameter "loglevel". (Actually, the Kconfig help message was taken from kernel-paremeter.txt of Linux) Messages with a loglevel smaller than console loglevel will be printed. The difference is the loglevel is build-time determined. To save the image size, lower priority pr_*() are compiled out. I set the default of CONFIG_LOGLEVEL to 6, i.e. pr_notice and higher priority messages are compiled in. I adjusted CONFIG_LOGLEVEL to avoid build error for some boards. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> [trini: Add in SPL_LOGLEVEL that is the same as LOGLEVEL] Signed-off-by: Tom Rini <trini@konsulko.com>
79 lines
1.7 KiB
C
79 lines
1.7 KiB
C
#ifndef __KERNEL_PRINTK__
|
|
#define __KERNEL_PRINTK__
|
|
|
|
#include <stdio.h>
|
|
#include <linux/compiler.h>
|
|
|
|
#define KERN_EMERG
|
|
#define KERN_ALERT
|
|
#define KERN_CRIT
|
|
#define KERN_ERR
|
|
#define KERN_WARNING
|
|
#define KERN_NOTICE
|
|
#define KERN_INFO
|
|
#define KERN_DEBUG
|
|
#define KERN_CONT
|
|
|
|
#define printk(fmt, ...) \
|
|
printf(fmt, ##__VA_ARGS__)
|
|
|
|
/*
|
|
* Dummy printk for disabled debugging statements to use whilst maintaining
|
|
* gcc's format checking.
|
|
*/
|
|
#define no_printk(fmt, ...) \
|
|
({ \
|
|
if (0) \
|
|
printk(fmt, ##__VA_ARGS__); \
|
|
0; \
|
|
})
|
|
|
|
#define __printk(level, fmt, ...) \
|
|
({ \
|
|
level < CONFIG_LOGLEVEL ? printk(fmt, ##__VA_ARGS__) : 0; \
|
|
})
|
|
|
|
#ifndef pr_fmt
|
|
#define pr_fmt(fmt) fmt
|
|
#endif
|
|
|
|
#define pr_emerg(fmt, ...) \
|
|
__printk(0, pr_fmt(fmt), ##__VA_ARGS__)
|
|
#define pr_alert(fmt, ...) \
|
|
__printk(1, pr_fmt(fmt), ##__VA_ARGS__)
|
|
#define pr_crit(fmt, ...) \
|
|
__printk(2, pr_fmt(fmt), ##__VA_ARGS__)
|
|
#define pr_err(fmt, ...) \
|
|
__printk(3, pr_fmt(fmt), ##__VA_ARGS__)
|
|
#define pr_warning(fmt, ...) \
|
|
__printk(4, pr_fmt(fmt), ##__VA_ARGS__)
|
|
#define pr_warn pr_warning
|
|
#define pr_notice(fmt, ...) \
|
|
__printk(5, pr_fmt(fmt), ##__VA_ARGS__)
|
|
#define pr_info(fmt, ...) \
|
|
__printk(6, pr_fmt(fmt), ##__VA_ARGS__)
|
|
|
|
#define pr_cont(fmt, ...) \
|
|
printk(fmt, ##__VA_ARGS__)
|
|
|
|
/* pr_devel() should produce zero code unless DEBUG is defined */
|
|
#ifdef DEBUG
|
|
#define pr_devel(fmt, ...) \
|
|
__printk(7, pr_fmt(fmt), ##__VA_ARGS__)
|
|
#else
|
|
#define pr_devel(fmt, ...) \
|
|
no_printk(pr_fmt(fmt), ##__VA_ARGS__)
|
|
#endif
|
|
|
|
#ifdef DEBUG
|
|
#define pr_debug(fmt, ...) \
|
|
__printk(7, pr_fmt(fmt), ##__VA_ARGS__)
|
|
#else
|
|
#define pr_debug(fmt, ...) \
|
|
no_printk(pr_fmt(fmt), ##__VA_ARGS__)
|
|
#endif
|
|
|
|
#define printk_once(fmt, ...) \
|
|
printk(fmt, ##__VA_ARGS__)
|
|
|
|
#endif
|