275 lines
8.4 KiB
C
275 lines
8.4 KiB
C
#ifndef __KERNEL_PRINTK__
|
|
#define __KERNEL_PRINTK__
|
|
|
|
#include <stdarg.h>
|
|
#include <linux/init.h>
|
|
#include <linux/linkage.h>
|
|
#include <linux/cache.h>
|
|
|
|
extern const char linux_banner[];
|
|
extern const char linux_proc_banner[];
|
|
|
|
extern char *log_buf_addr_get(void);
|
|
extern u32 log_buf_len_get(void);
|
|
|
|
/* 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_DEFAULT 7 /* anything MORE serious than KERN_DEBUG */
|
|
#define CONSOLE_LOGLEVEL_DEBUG 10 /* issue debug messages */
|
|
#define CONSOLE_LOGLEVEL_MOTORMOUTH 15 /* You can't shut this one up */
|
|
|
|
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 and side-effect checking.
|
|
*/
|
|
static inline __printf(1, 2)
|
|
int no_printk(const char *fmt, ...)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
__printf(1, 2) int dbgprintf(const char *fmt, ...);
|
|
|
|
#define printk(fmt, arg...) dbgprintf(fmt , ##arg)
|
|
|
|
#ifndef pr_fmt
|
|
#define pr_fmt(fmt) fmt
|
|
#endif
|
|
|
|
#define pr_debug(fmt, ...) \
|
|
printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
|
|
|
|
/*
|
|
* 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__)
|
|
|
|
/* 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
|
|
|
|
/*
|
|
* Print a one-time message (analogous to WARN_ONCE() et al):
|
|
*/
|
|
|
|
#ifdef CONFIG_PRINTK
|
|
#define printk_once(fmt, ...) \
|
|
({ \
|
|
static bool __print_once __read_mostly; \
|
|
\
|
|
if (!__print_once) { \
|
|
__print_once = true; \
|
|
printk(fmt, ##__VA_ARGS__); \
|
|
} \
|
|
})
|
|
#define printk_deferred_once(fmt, ...) \
|
|
({ \
|
|
static bool __print_once __read_mostly; \
|
|
\
|
|
if (!__print_once) { \
|
|
__print_once = true; \
|
|
printk_deferred(fmt, ##__VA_ARGS__); \
|
|
} \
|
|
})
|
|
#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, fmt); \
|
|
if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT) && \
|
|
__ratelimit(&_rs)) \
|
|
__dynamic_pr_debug(&descriptor, 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);
|
|
|
|
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);
|
|
extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
|
|
const void *buf, size_t len);
|
|
|
|
|
|
#endif
|