u-boot/include/common.h

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/* SPDX-License-Identifier: GPL-2.0+ */
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/*
* Common header file for U-Boot
*
* This file still includes quite a few headers that should be included
* individually as needed. Patches to remove things are welcome.
*
* (C) Copyright 2000-2009
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*/
#ifndef __COMMON_H_
#define __COMMON_H_ 1
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#ifndef __ASSEMBLY__ /* put C only stuff in this section */
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#include <config.h>
#include <errno.h>
#include <time.h>
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#include <linux/types.h>
printk: collect printk stuff into <linux/printk.h> with loglevel support 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>
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#include <linux/printk.h>
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#include <linux/string.h>
#include <stdarg.h>
#include <stdio.h>
#include <linux/kernel.h>
#include <asm/u-boot.h> /* boot information for Linux kernel */
#include <vsprintf.h>
#endif /* __ASSEMBLY__ */
/* Pull in stuff for the build system */
#ifdef DO_DEPS_ONLY
# include <env_internal.h>
#endif
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#endif /* __COMMON_H_ */