include/linux/printk.h - LeafOS-Devices/android_kernel_samsung_exynos9820 - Gitiles

 /* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __KERNEL_PRINTK__
 #define __KERNEL_PRINTK__

 #include <stdarg.h>
 #include <linux/init.h>
 #include <linux/kern_levels.h>
 #include <linux/linkage.h>
 #include <linux/cache.h>

 extern const char linux_banner[];
 extern const char linux_proc_banner[];

 #define PRINTK_MAX_SINGLE_HEADER_LEN 2

 static inline int printk_get_level(const char *buffer)
 {
 	if (buffer[0] == KERN_SOH_ASCII && buffer[1]) {
 		switch (buffer[1]) {
 		case '0' ... '7':
 #ifdef CONFIG_SEC_DEBUG_AUTO_COMMENT
 		case 'B' ... 'J':
 #endif
 		case 'd':	/* KERN_DEFAULT */
 		case 'c':	/* KERN_CONT */
 			return buffer[1];
 		}
 	}
 	return 0;
 }

 static inline const char *printk_skip_level(const char *buffer)
 {
 	if (printk_get_level(buffer))
 		return buffer + 2;

 	return buffer;
 }

 static inline const char *printk_skip_headers(const char *buffer)
 {
 	while (printk_get_level(buffer))
 		buffer = printk_skip_level(buffer);

 	return buffer;
 }

 #define CONSOLE_EXT_LOG_MAX	8192

 /* printk's without a loglevel use this.. */
 #define MESSAGE_LOGLEVEL_DEFAULT CONFIG_MESSAGE_LOGLEVEL_DEFAULT

 /* We show everything that is MORE important than this.. */
 #define CONSOLE_LOGLEVEL_SILENT  0 /* Mum's the word */
 #define CONSOLE_LOGLEVEL_MIN	 1 /* Minimum loglevel we let people use */
 #define CONSOLE_LOGLEVEL_QUIET	 4 /* Shhh ..., when booted with "quiet" */
 #define CONSOLE_LOGLEVEL_DEBUG	10 /* issue debug messages */
 #define CONSOLE_LOGLEVEL_MOTORMOUTH 15	/* You can't shut this one up */

 /*
  * Default used to be hard-coded at 7, we're now allowing it to be set from
  * kernel config.
  */
 #define CONSOLE_LOGLEVEL_DEFAULT CONFIG_CONSOLE_LOGLEVEL_DEFAULT

 extern int console_printk[];

 #define console_loglevel (console_printk[0])
 #define default_message_loglevel (console_printk[1])
 #define minimum_console_loglevel (console_printk[2])
 #define default_console_loglevel (console_printk[3])

 static inline void console_silent(void)
 {
 	console_loglevel = CONSOLE_LOGLEVEL_SILENT;
 }

 static inline void console_verbose(void)
 {
 	if (console_loglevel)
 		console_loglevel = CONSOLE_LOGLEVEL_MOTORMOUTH;
 }

 /* strlen("ratelimit") + 1 */
 #define DEVKMSG_STR_MAX_SIZE 10
 extern char devkmsg_log_str[];
 struct ctl_table;

 struct va_format {
 	const char *fmt;
 	va_list *va;
 };

 /*
  * FW_BUG
  * Add this to a message where you are sure the firmware is buggy or behaves
  * really stupid or out of spec. Be aware that the responsible BIOS developer
  * should be able to fix this issue or at least get a concrete idea of the
  * problem by reading your message without the need of looking at the kernel
  * code.
  *
  * Use it for definite and high priority BIOS bugs.
  *
  * FW_WARN
  * Use it for not that clear (e.g. could the kernel messed up things already?)
  * and medium priority BIOS bugs.
  *
  * FW_INFO
  * Use this one if you want to tell the user or vendor about something
  * suspicious, but generally harmless related to the firmware.
  *
  * Use it for information or very low priority BIOS bugs.
  */
 #define FW_BUG		"[Firmware Bug]: "
 #define FW_WARN		"[Firmware Warn]: "
 #define FW_INFO		"[Firmware Info]: "

 /*
  * HW_ERR
  * Add this to a message for hardware errors, so that user can report
  * it to hardware vendor instead of LKML or software vendor.
  */
 #define HW_ERR		"[Hardware Error]: "

 /*
  * DEPRECATED
  * Add this to a message whenever you want to warn user space about the use
  * of a deprecated aspect of an API so they can stop using it
  */
 #define DEPRECATED	"[Deprecated]: "

 /*
  * Dummy printk for disabled debugging statements to use whilst maintaining
  * gcc's format checking.
  */
 #define no_printk(fmt, ...)				\
 ({							\
 	do {						\
 		if (0)					\
 			printk(fmt, ##__VA_ARGS__);	\
 	} while (0);					\
 	0;						\
 })

 #ifdef CONFIG_EARLY_PRINTK
 extern asmlinkage __printf(1, 2)
 void early_printk(const char *fmt, ...);
 #else
 static inline __printf(1, 2) __cold
 void early_printk(const char *s, ...) { }
 #endif

 #ifdef CONFIG_PRINTK_NMI
 extern void printk_nmi_enter(void);
 extern void printk_nmi_exit(void);
 extern void printk_nmi_direct_enter(void);
 extern void printk_nmi_direct_exit(void);
 #else
 static inline void printk_nmi_enter(void) { }
 static inline void printk_nmi_exit(void) { }
 static inline void printk_nmi_direct_enter(void) { }
 static inline void printk_nmi_direct_exit(void) { }
 #endif /* PRINTK_NMI */

 #ifdef CONFIG_PRINTK
 asmlinkage __printf(5, 0)
 int vprintk_emit(int facility, int level,
 		 const char *dict, size_t dictlen,
 		 const char *fmt, va_list args);

 asmlinkage __printf(1, 0)
 int vprintk(const char *fmt, va_list args);

 asmlinkage __printf(5, 6) __cold
 int printk_emit(int facility, int level,
 		const char *dict, size_t dictlen,
 		const char *fmt, ...);

 asmlinkage __printf(1, 2) __cold
 int printk(const char *fmt, ...);

 /*
  * Special printk facility for scheduler/timekeeping use only, _DO_NOT_USE_ !
  */
 __printf(1, 2) __cold int printk_deferred(const char *fmt, ...);

 /*
  * Please don't use printk_ratelimit(), because it shares ratelimiting state
  * with all other unrelated printk_ratelimit() callsites.  Instead use
  * printk_ratelimited() or plain old __ratelimit().
  */
 extern int __printk_ratelimit(const char *func);
 #define printk_ratelimit() __printk_ratelimit(__func__)
 extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
 				   unsigned int interval_msec);

 extern int printk_delay_msec;
 extern int dmesg_restrict;
 extern int kptr_restrict;

 extern int
 devkmsg_sysctl_set_loglvl(struct ctl_table *table, int write, void __user *buf,
 			  size_t *lenp, loff_t *ppos);

 extern void wake_up_klogd(void);

 char *log_buf_addr_get(void);
 u32 log_buf_len_get(void);
 void log_buf_vmcoreinfo_setup(void);
 void __init setup_log_buf(int early);
 __printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...);
 void dump_stack_print_info(const char *log_lvl);
 void show_regs_print_info(const char *log_lvl);
 extern void printk_safe_init(void);
 extern void printk_safe_flush(void);
 extern void printk_safe_flush_on_panic(void);
 #else
 static inline __printf(1, 0)
 int vprintk(const char *s, va_list args)
 {
 	return 0;
 }
 static inline __printf(1, 2) __cold
 int printk(const char *s, ...)
 {
 	return 0;
 }
 static inline __printf(1, 2) __cold
 int printk_deferred(const char *s, ...)
 {
 	return 0;
 }
 static inline int printk_ratelimit(void)
 {
 	return 0;
 }
 static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies,
 					  unsigned int interval_msec)
 {
 	return false;
 }

 static inline void wake_up_klogd(void)
 {
 }

 static inline char *log_buf_addr_get(void)
 {
 	return NULL;
 }

 static inline u32 log_buf_len_get(void)
 {
 	return 0;
 }

 static inline void log_buf_vmcoreinfo_setup(void)
 {
 }

 static inline void setup_log_buf(int early)
 {
 }

 static inline __printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...)
 {
 }

 static inline void dump_stack_print_info(const char *log_lvl)
 {
 }

 static inline void show_regs_print_info(const char *log_lvl)
 {
 }

 static inline void printk_safe_init(void)
 {
 }

 static inline void printk_safe_flush(void)
 {
 }

 static inline void printk_safe_flush_on_panic(void)
 {
 }
 #endif

 extern asmlinkage void dump_stack(void) __cold;

 #ifndef pr_fmt
 #define pr_fmt(fmt) fmt
 #endif

 /*
  * These can be used to print at the various log levels.
  * All of these will print unconditionally, although note that pr_debug()
  * and other debug macros are compiled out unless either DEBUG is defined
  * or CONFIG_DYNAMIC_DEBUG is set.
  */
 #define pr_emerg(fmt, ...) \
 	printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_alert(fmt, ...) \
 	printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_crit(fmt, ...) \
 	printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_err(fmt, ...) \
 	printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_warning(fmt, ...) \
 	printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_warn pr_warning
 #define pr_notice(fmt, ...) \
 	printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_info(fmt, ...) \
 	printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
 /*
  * Like KERN_CONT, pr_cont() should only be used when continuing
  * a line with no newline ('\n') enclosed. Otherwise it defaults
  * back to KERN_DEFAULT.
  */
 #define pr_cont(fmt, ...) \
 	printk(KERN_CONT fmt, ##__VA_ARGS__)

 #ifdef CONFIG_SEC_DEBUG_AUTO_COMMENT

 #define pr_auto(index, fmt, ...) \
 	printk(KERN_AUTO index pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_auto_disable(index) \
 	sec_debug_auto_comment_log_disable(index)
 #define pr_auto_once(index) \
 	sec_debug_auto_comment_log_once(index)

 #define ASL1	KERN_AUTO1
 #define ASL2	KERN_AUTO2
 #define ASL3	KERN_AUTO3
 #define ASL4	KERN_AUTO4
 #define ASL5	KERN_AUTO5
 #define ASL6	KERN_AUTO6
 #define ASL7	KERN_AUTO7
 #define ASL8	KERN_AUTO8
 #define ASL9	KERN_AUTO9

 #else
 /* TODO : retain the original log level */
 #define pr_auto(level, fmt, ...) \
 	printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_auto_disable(index) do { } while (0)
 #define pr_auto_once(index) do { } while (0)

 #endif

 /* pr_devel() should produce zero code unless DEBUG is defined */
 #ifdef DEBUG
 #define pr_devel(fmt, ...) \
 	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #else
 #define pr_devel(fmt, ...) \
 	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #endif


 /* If you are writing a driver, please use dev_dbg instead */
 #if defined(CONFIG_DYNAMIC_DEBUG)
 #include <linux/dynamic_debug.h>

 /* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */
 #define pr_debug(fmt, ...) \
 	dynamic_pr_debug(fmt, ##__VA_ARGS__)
 #elif defined(DEBUG)
 #define pr_debug(fmt, ...) \
 	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #else
 #define pr_debug(fmt, ...) \
 	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #endif

 /*
  * Print a one-time message (analogous to WARN_ONCE() et al):
  */

 #ifdef CONFIG_PRINTK
 #define printk_once(fmt, ...)					\
 ({								\
 	static bool __print_once __read_mostly;			\
 	bool __ret_print_once = !__print_once;			\
 								\
 	if (!__print_once) {					\
 		__print_once = true;				\
 		printk(fmt, ##__VA_ARGS__);			\
 	}							\
 	unlikely(__ret_print_once);				\
 })
 #define printk_deferred_once(fmt, ...)				\
 ({								\
 	static bool __print_once __read_mostly;			\
 	bool __ret_print_once = !__print_once;			\
 								\
 	if (!__print_once) {					\
 		__print_once = true;				\
 		printk_deferred(fmt, ##__VA_ARGS__);		\
 	}							\
 	unlikely(__ret_print_once);				\
 })
 #else
 #define printk_once(fmt, ...)					\
 	no_printk(fmt, ##__VA_ARGS__)
 #define printk_deferred_once(fmt, ...)				\
 	no_printk(fmt, ##__VA_ARGS__)
 #endif

 #define pr_emerg_once(fmt, ...)					\
 	printk_once(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_alert_once(fmt, ...)					\
 	printk_once(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_crit_once(fmt, ...)					\
 	printk_once(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_err_once(fmt, ...)					\
 	printk_once(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_warn_once(fmt, ...)					\
 	printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_notice_once(fmt, ...)				\
 	printk_once(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_info_once(fmt, ...)					\
 	printk_once(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_cont_once(fmt, ...)					\
 	printk_once(KERN_CONT pr_fmt(fmt), ##__VA_ARGS__)

 #if defined(DEBUG)
 #define pr_devel_once(fmt, ...)					\
 	printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #else
 #define pr_devel_once(fmt, ...)					\
 	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #endif

 /* If you are writing a driver, please use dev_dbg instead */
 #if defined(DEBUG)
 #define pr_debug_once(fmt, ...)					\
 	printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #else
 #define pr_debug_once(fmt, ...)					\
 	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #endif

 /*
  * ratelimited messages with local ratelimit_state,
  * no local ratelimit_state used in the !PRINTK case
  */
 #ifdef CONFIG_PRINTK
 #define printk_ratelimited(fmt, ...)					\
 ({									\
 	static DEFINE_RATELIMIT_STATE(_rs,				\
 				      DEFAULT_RATELIMIT_INTERVAL,	\
 				      DEFAULT_RATELIMIT_BURST);		\
 									\
 	if (__ratelimit(&_rs))						\
 		printk(fmt, ##__VA_ARGS__);				\
 })
 #else
 #define printk_ratelimited(fmt, ...)					\
 	no_printk(fmt, ##__VA_ARGS__)
 #endif

 #define pr_emerg_ratelimited(fmt, ...)					\
 	printk_ratelimited(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_alert_ratelimited(fmt, ...)					\
 	printk_ratelimited(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_crit_ratelimited(fmt, ...)					\
 	printk_ratelimited(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_err_ratelimited(fmt, ...)					\
 	printk_ratelimited(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_warn_ratelimited(fmt, ...)					\
 	printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_notice_ratelimited(fmt, ...)					\
 	printk_ratelimited(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
 #define pr_info_ratelimited(fmt, ...)					\
 	printk_ratelimited(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
 /* no pr_cont_ratelimited, don't do that... */

 #if defined(DEBUG)
 #define pr_devel_ratelimited(fmt, ...)					\
 	printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #else
 #define pr_devel_ratelimited(fmt, ...)					\
 	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #endif

 /* If you are writing a driver, please use dev_dbg instead */
 #if defined(CONFIG_DYNAMIC_DEBUG)
 /* descriptor check is first to prevent flooding with "callbacks suppressed" */
 #define pr_debug_ratelimited(fmt, ...)					\
 do {									\
 	static DEFINE_RATELIMIT_STATE(_rs,				\
 				      DEFAULT_RATELIMIT_INTERVAL,	\
 				      DEFAULT_RATELIMIT_BURST);		\
 	DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, pr_fmt(fmt));		\
 	if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT) &&	\
 	    __ratelimit(&_rs))						\
 		__dynamic_pr_debug(&descriptor, pr_fmt(fmt), ##__VA_ARGS__);	\
 } while (0)
 #elif defined(DEBUG)
 #define pr_debug_ratelimited(fmt, ...)					\
 	printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #else
 #define pr_debug_ratelimited(fmt, ...) \
 	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #endif

 extern const struct file_operations kmsg_fops;

 enum {
 	DUMP_PREFIX_NONE,
 	DUMP_PREFIX_ADDRESS,
 	DUMP_PREFIX_OFFSET
 };
 extern int hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
 			      int groupsize, char *linebuf, size_t linebuflen,
 			      bool ascii);
 #ifdef CONFIG_PRINTK
 extern void print_hex_dump(const char *level, const char *prefix_str,
 			   int prefix_type, int rowsize, int groupsize,
 			   const void *buf, size_t len, bool ascii);
 #if defined(CONFIG_DYNAMIC_DEBUG)
 #define print_hex_dump_bytes(prefix_str, prefix_type, buf, len)	\
 	dynamic_hex_dump(prefix_str, prefix_type, 16, 1, buf, len, true)
 #else
 extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
 				 const void *buf, size_t len);
 #endif /* defined(CONFIG_DYNAMIC_DEBUG) */
 #else
 static inline void print_hex_dump(const char *level, const char *prefix_str,
 				  int prefix_type, int rowsize, int groupsize,
 				  const void *buf, size_t len, bool ascii)
 {
 }
 static inline void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
 					const void *buf, size_t len)
 {
 }

 #endif

 #if defined(CONFIG_DYNAMIC_DEBUG)
 #define print_hex_dump_debug(prefix_str, prefix_type, rowsize,	\
 			     groupsize, buf, len, ascii)	\
 	dynamic_hex_dump(prefix_str, prefix_type, rowsize,	\
 			 groupsize, buf, len, ascii)
 #elif defined(DEBUG)
 #define print_hex_dump_debug(prefix_str, prefix_type, rowsize,		\
 			     groupsize, buf, len, ascii)		\
 	print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, rowsize,	\
 		       groupsize, buf, len, ascii)
 #else
 static inline void print_hex_dump_debug(const char *prefix_str, int prefix_type,
 					int rowsize, int groupsize,
 					const void *buf, size_t len, bool ascii)
 {
 }
 #endif

 #ifdef CONFIG_PRINTK
 extern void __printk_safe_enter(void);
 extern void __printk_safe_exit(void);
 /*
  * The printk_deferred_enter/exit macros are available only as a hack for
  * some code paths that need to defer all printk console printing. Interrupts
  * must be disabled for the deferred duration.
  */
 #define printk_deferred_enter __printk_safe_enter
 #define printk_deferred_exit __printk_safe_exit
 #else
 static inline void printk_deferred_enter(void)
 {
 }
 static inline void printk_deferred_exit(void)
 {
 }
 #endif

 #endif
	/* SPDX-License-Identifier: GPL-2.0 */
	#ifndef __KERNEL_PRINTK__
	#define __KERNEL_PRINTK__

	#include <stdarg.h>
	#include <linux/init.h>
	#include <linux/kern_levels.h>
	#include <linux/linkage.h>
	#include <linux/cache.h>

	extern const char linux_banner[];
	extern const char linux_proc_banner[];

	#define PRINTK_MAX_SINGLE_HEADER_LEN 2

	static inline int printk_get_level(const char *buffer)
	{
	if (buffer[0] == KERN_SOH_ASCII && buffer[1]) {
	switch (buffer[1]) {
	case '0' ... '7':
	#ifdef CONFIG_SEC_DEBUG_AUTO_COMMENT
	case 'B' ... 'J':
	#endif
	case 'd': /* KERN_DEFAULT */
	case 'c': /* KERN_CONT */
	return buffer[1];
	}
	}
	return 0;
	}

	static inline const char printk_skip_level(const char buffer)
	{
	if (printk_get_level(buffer))
	return buffer + 2;

	return buffer;
	}

	static inline const char printk_skip_headers(const char buffer)
	{
	while (printk_get_level(buffer))
	buffer = printk_skip_level(buffer);

	return buffer;
	}

	#define CONSOLE_EXT_LOG_MAX 8192

	/* printk's without a loglevel use this.. */
	#define MESSAGE_LOGLEVEL_DEFAULT CONFIG_MESSAGE_LOGLEVEL_DEFAULT

	/* We show everything that is MORE important than this.. */
	#define CONSOLE_LOGLEVEL_SILENT 0 /* Mum's the word */
	#define CONSOLE_LOGLEVEL_MIN 1 /* Minimum loglevel we let people use */
	#define CONSOLE_LOGLEVEL_QUIET 4 /* Shhh ..., when booted with "quiet" */
	#define CONSOLE_LOGLEVEL_DEBUG 10 /* issue debug messages */
	#define CONSOLE_LOGLEVEL_MOTORMOUTH 15 /* You can't shut this one up */

	/*
	* Default used to be hard-coded at 7, we're now allowing it to be set from
	* kernel config.
	*/
	#define CONSOLE_LOGLEVEL_DEFAULT CONFIG_CONSOLE_LOGLEVEL_DEFAULT

	extern int console_printk[];

	#define console_loglevel (console_printk[0])
	#define default_message_loglevel (console_printk[1])
	#define minimum_console_loglevel (console_printk[2])
	#define default_console_loglevel (console_printk[3])

	static inline void console_silent(void)
	{
	console_loglevel = CONSOLE_LOGLEVEL_SILENT;
	}

	static inline void console_verbose(void)
	{
	if (console_loglevel)
	console_loglevel = CONSOLE_LOGLEVEL_MOTORMOUTH;
	}

	/* strlen("ratelimit") + 1 */
	#define DEVKMSG_STR_MAX_SIZE 10
	extern char devkmsg_log_str[];
	struct ctl_table;

	struct va_format {
	const char *fmt;
	va_list *va;
	};

	/*
	* FW_BUG
	* Add this to a message where you are sure the firmware is buggy or behaves
	* really stupid or out of spec. Be aware that the responsible BIOS developer
	* should be able to fix this issue or at least get a concrete idea of the
	* problem by reading your message without the need of looking at the kernel
	* code.
	*
	* Use it for definite and high priority BIOS bugs.
	*
	* FW_WARN
	* Use it for not that clear (e.g. could the kernel messed up things already?)
	* and medium priority BIOS bugs.
	*
	* FW_INFO
	* Use this one if you want to tell the user or vendor about something
	* suspicious, but generally harmless related to the firmware.
	*
	* Use it for information or very low priority BIOS bugs.
	*/
	#define FW_BUG "[Firmware Bug]: "
	#define FW_WARN "[Firmware Warn]: "
	#define FW_INFO "[Firmware Info]: "

	/*
	* HW_ERR
	* Add this to a message for hardware errors, so that user can report
	* it to hardware vendor instead of LKML or software vendor.
	*/
	#define HW_ERR "[Hardware Error]: "

	/*
	* DEPRECATED
	* Add this to a message whenever you want to warn user space about the use
	* of a deprecated aspect of an API so they can stop using it
	*/
	#define DEPRECATED "[Deprecated]: "

	/*
	* Dummy printk for disabled debugging statements to use whilst maintaining
	* gcc's format checking.
	*/
	#define no_printk(fmt, ...) \
	({ \
	do { \
	if (0) \
	printk(fmt, ##__VA_ARGS__); \
	} while (0); \
	0; \
	})

	#ifdef CONFIG_EARLY_PRINTK
	extern asmlinkage __printf(1, 2)
	void early_printk(const char *fmt, ...);
	#else
	static inline __printf(1, 2) __cold
	void early_printk(const char *s, ...) { }
	#endif

	#ifdef CONFIG_PRINTK_NMI
	extern void printk_nmi_enter(void);
	extern void printk_nmi_exit(void);
	extern void printk_nmi_direct_enter(void);
	extern void printk_nmi_direct_exit(void);
	#else
	static inline void printk_nmi_enter(void) { }
	static inline void printk_nmi_exit(void) { }
	static inline void printk_nmi_direct_enter(void) { }
	static inline void printk_nmi_direct_exit(void) { }
	#endif /* PRINTK_NMI */

	#ifdef CONFIG_PRINTK
	asmlinkage __printf(5, 0)
	int vprintk_emit(int facility, int level,
	const char *dict, size_t dictlen,
	const char *fmt, va_list args);

	asmlinkage __printf(1, 0)
	int vprintk(const char *fmt, va_list args);

	asmlinkage __printf(5, 6) __cold
	int printk_emit(int facility, int level,
	const char *dict, size_t dictlen,
	const char *fmt, ...);

	asmlinkage __printf(1, 2) __cold
	int printk(const char *fmt, ...);

	/*
	* Special printk facility for scheduler/timekeeping use only, _DO_NOT_USE_ !
	*/
	__printf(1, 2) __cold int printk_deferred(const char *fmt, ...);

	/*
	* Please don't use printk_ratelimit(), because it shares ratelimiting state
	* with all other unrelated printk_ratelimit() callsites. Instead use
	* printk_ratelimited() or plain old __ratelimit().
	*/
	extern int __printk_ratelimit(const char *func);
	#define printk_ratelimit() __printk_ratelimit(__func__)
	extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
	unsigned int interval_msec);

	extern int printk_delay_msec;
	extern int dmesg_restrict;
	extern int kptr_restrict;

	extern int
	devkmsg_sysctl_set_loglvl(struct ctl_table table, int write, void __user buf,
	size_t lenp, loff_t ppos);

	extern void wake_up_klogd(void);

	char *log_buf_addr_get(void);
	u32 log_buf_len_get(void);
	void log_buf_vmcoreinfo_setup(void);
	void __init setup_log_buf(int early);
	__printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...);
	void dump_stack_print_info(const char *log_lvl);
	void show_regs_print_info(const char *log_lvl);
	extern void printk_safe_init(void);
	extern void printk_safe_flush(void);
	extern void printk_safe_flush_on_panic(void);
	#else
	static inline __printf(1, 0)
	int vprintk(const char *s, va_list args)
	{
	return 0;
	}
	static inline __printf(1, 2) __cold
	int printk(const char *s, ...)
	{
	return 0;
	}
	static inline __printf(1, 2) __cold
	int printk_deferred(const char *s, ...)
	{
	return 0;
	}
	static inline int printk_ratelimit(void)
	{
	return 0;
	}
	static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies,
	unsigned int interval_msec)
	{
	return false;
	}

	static inline void wake_up_klogd(void)
	{
	}

	static inline char *log_buf_addr_get(void)
	{
	return NULL;
	}

	static inline u32 log_buf_len_get(void)
	{
	return 0;
	}

	static inline void log_buf_vmcoreinfo_setup(void)
	{
	}

	static inline void setup_log_buf(int early)
	{
	}

	static inline __printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...)
	{
	}

	static inline void dump_stack_print_info(const char *log_lvl)
	{
	}

	static inline void show_regs_print_info(const char *log_lvl)
	{
	}

	static inline void printk_safe_init(void)
	{
	}

	static inline void printk_safe_flush(void)
	{
	}

	static inline void printk_safe_flush_on_panic(void)
	{
	}
	#endif

	extern asmlinkage void dump_stack(void) __cold;

	#ifndef pr_fmt
	#define pr_fmt(fmt) fmt
	#endif

	/*
	* These can be used to print at the various log levels.
	* All of these will print unconditionally, although note that pr_debug()
	* and other debug macros are compiled out unless either DEBUG is defined
	* or CONFIG_DYNAMIC_DEBUG is set.
	*/
	#define pr_emerg(fmt, ...) \
	printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_alert(fmt, ...) \
	printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_crit(fmt, ...) \
	printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_err(fmt, ...) \
	printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_warning(fmt, ...) \
	printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_warn pr_warning
	#define pr_notice(fmt, ...) \
	printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_info(fmt, ...) \
	printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
	/*
	* Like KERN_CONT, pr_cont() should only be used when continuing
	* a line with no newline ('\n') enclosed. Otherwise it defaults
	* back to KERN_DEFAULT.
	*/
	#define pr_cont(fmt, ...) \
	printk(KERN_CONT fmt, ##__VA_ARGS__)

	#ifdef CONFIG_SEC_DEBUG_AUTO_COMMENT

	#define pr_auto(index, fmt, ...) \
	printk(KERN_AUTO index pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_auto_disable(index) \
	sec_debug_auto_comment_log_disable(index)
	#define pr_auto_once(index) \
	sec_debug_auto_comment_log_once(index)

	#define ASL1 KERN_AUTO1
	#define ASL2 KERN_AUTO2
	#define ASL3 KERN_AUTO3
	#define ASL4 KERN_AUTO4
	#define ASL5 KERN_AUTO5
	#define ASL6 KERN_AUTO6
	#define ASL7 KERN_AUTO7
	#define ASL8 KERN_AUTO8
	#define ASL9 KERN_AUTO9

	#else
	/* TODO : retain the original log level */
	#define pr_auto(level, fmt, ...) \
	printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_auto_disable(index) do { } while (0)
	#define pr_auto_once(index) do { } while (0)

	#endif

	/* pr_devel() should produce zero code unless DEBUG is defined */
	#ifdef DEBUG
	#define pr_devel(fmt, ...) \
	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	#else
	#define pr_devel(fmt, ...) \
	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	#endif


	/* If you are writing a driver, please use dev_dbg instead */
	#if defined(CONFIG_DYNAMIC_DEBUG)
	#include <linux/dynamic_debug.h>

	/* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */
	#define pr_debug(fmt, ...) \
	dynamic_pr_debug(fmt, ##__VA_ARGS__)
	#elif defined(DEBUG)
	#define pr_debug(fmt, ...) \
	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	#else
	#define pr_debug(fmt, ...) \
	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	#endif

	/*
	* Print a one-time message (analogous to WARN_ONCE() et al):
	*/

	#ifdef CONFIG_PRINTK
	#define printk_once(fmt, ...) \
	({ \
	static bool __print_once __read_mostly; \
	bool __ret_print_once = !__print_once; \
	\
	if (!__print_once) { \
	__print_once = true; \
	printk(fmt, ##__VA_ARGS__); \
	} \
	unlikely(__ret_print_once); \
	})
	#define printk_deferred_once(fmt, ...) \
	({ \
	static bool __print_once __read_mostly; \
	bool __ret_print_once = !__print_once; \
	\
	if (!__print_once) { \
	__print_once = true; \
	printk_deferred(fmt, ##__VA_ARGS__); \
	} \
	unlikely(__ret_print_once); \
	})
	#else
	#define printk_once(fmt, ...) \
	no_printk(fmt, ##__VA_ARGS__)
	#define printk_deferred_once(fmt, ...) \
	no_printk(fmt, ##__VA_ARGS__)
	#endif

	#define pr_emerg_once(fmt, ...) \
	printk_once(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_alert_once(fmt, ...) \
	printk_once(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_crit_once(fmt, ...) \
	printk_once(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_err_once(fmt, ...) \
	printk_once(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_warn_once(fmt, ...) \
	printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_notice_once(fmt, ...) \
	printk_once(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_info_once(fmt, ...) \
	printk_once(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_cont_once(fmt, ...) \
	printk_once(KERN_CONT pr_fmt(fmt), ##__VA_ARGS__)

	#if defined(DEBUG)
	#define pr_devel_once(fmt, ...) \
	printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	#else
	#define pr_devel_once(fmt, ...) \
	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	#endif

	/* If you are writing a driver, please use dev_dbg instead */
	#if defined(DEBUG)
	#define pr_debug_once(fmt, ...) \
	printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	#else
	#define pr_debug_once(fmt, ...) \
	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	#endif

	/*
	* ratelimited messages with local ratelimit_state,
	* no local ratelimit_state used in the !PRINTK case
	*/
	#ifdef CONFIG_PRINTK
	#define printk_ratelimited(fmt, ...) \
	({ \
	static DEFINE_RATELIMIT_STATE(_rs, \
	DEFAULT_RATELIMIT_INTERVAL, \
	DEFAULT_RATELIMIT_BURST); \
	\
	if (__ratelimit(&_rs)) \
	printk(fmt, ##__VA_ARGS__); \
	})
	#else
	#define printk_ratelimited(fmt, ...) \
	no_printk(fmt, ##__VA_ARGS__)
	#endif

	#define pr_emerg_ratelimited(fmt, ...) \
	printk_ratelimited(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_alert_ratelimited(fmt, ...) \
	printk_ratelimited(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_crit_ratelimited(fmt, ...) \
	printk_ratelimited(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_err_ratelimited(fmt, ...) \
	printk_ratelimited(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_warn_ratelimited(fmt, ...) \
	printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_notice_ratelimited(fmt, ...) \
	printk_ratelimited(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
	#define pr_info_ratelimited(fmt, ...) \
	printk_ratelimited(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
	/* no pr_cont_ratelimited, don't do that... */

	#if defined(DEBUG)
	#define pr_devel_ratelimited(fmt, ...) \
	printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	#else
	#define pr_devel_ratelimited(fmt, ...) \
	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	#endif

	/* If you are writing a driver, please use dev_dbg instead */
	#if defined(CONFIG_DYNAMIC_DEBUG)
	/* descriptor check is first to prevent flooding with "callbacks suppressed" */
	#define pr_debug_ratelimited(fmt, ...) \
	do { \
	static DEFINE_RATELIMIT_STATE(_rs, \
	DEFAULT_RATELIMIT_INTERVAL, \
	DEFAULT_RATELIMIT_BURST); \
	DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, pr_fmt(fmt)); \
	if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT) && \
	__ratelimit(&_rs)) \
	__dynamic_pr_debug(&descriptor, pr_fmt(fmt), ##__VA_ARGS__); \
	} while (0)
	#elif defined(DEBUG)
	#define pr_debug_ratelimited(fmt, ...) \
	printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	#else
	#define pr_debug_ratelimited(fmt, ...) \
	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
	#endif

	extern const struct file_operations kmsg_fops;

	enum {
	DUMP_PREFIX_NONE,
	DUMP_PREFIX_ADDRESS,
	DUMP_PREFIX_OFFSET
	};
	extern int hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
	int groupsize, char *linebuf, size_t linebuflen,
	bool ascii);
	#ifdef CONFIG_PRINTK
	extern void print_hex_dump(const char level, const char prefix_str,
	int prefix_type, int rowsize, int groupsize,
	const void *buf, size_t len, bool ascii);
	#if defined(CONFIG_DYNAMIC_DEBUG)
	#define print_hex_dump_bytes(prefix_str, prefix_type, buf, len) \
	dynamic_hex_dump(prefix_str, prefix_type, 16, 1, buf, len, true)
	#else
	extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
	const void *buf, size_t len);
	#endif /* defined(CONFIG_DYNAMIC_DEBUG) */
	#else
	static inline void print_hex_dump(const char level, const char prefix_str,
	int prefix_type, int rowsize, int groupsize,
	const void *buf, size_t len, bool ascii)
	{
	}
	static inline void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
	const void *buf, size_t len)
	{
	}

	#endif

	#if defined(CONFIG_DYNAMIC_DEBUG)
	#define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \
	groupsize, buf, len, ascii) \
	dynamic_hex_dump(prefix_str, prefix_type, rowsize, \
	groupsize, buf, len, ascii)
	#elif defined(DEBUG)
	#define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \
	groupsize, buf, len, ascii) \
	print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, rowsize, \
	groupsize, buf, len, ascii)
	#else
	static inline void print_hex_dump_debug(const char *prefix_str, int prefix_type,
	int rowsize, int groupsize,
	const void *buf, size_t len, bool ascii)
	{
	}
	#endif

	#ifdef CONFIG_PRINTK
	extern void __printk_safe_enter(void);
	extern void __printk_safe_exit(void);
	/*
	* The printk_deferred_enter/exit macros are available only as a hack for
	* some code paths that need to defer all printk console printing. Interrupts
	* must be disabled for the deferred duration.
	*/
	#define printk_deferred_enter __printk_safe_enter
	#define printk_deferred_exit __printk_safe_exit
	#else
	static inline void printk_deferred_enter(void)
	{
	}
	static inline void printk_deferred_exit(void)
	{
	}
	#endif

	#endif