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| Rev | Author | Line No. | Line |
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| 5270 | serge | 1 | #ifndef __KERNEL_PRINTK__ |
| 2 | #define __KERNEL_PRINTK__ |
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| 3 | |||
| 4 | #include |
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| 5 | #include |
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| 6 | #include |
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| 7 | |||
| 8 | extern const char linux_banner[]; |
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| 9 | extern const char linux_proc_banner[]; |
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| 10 | |||
| 11 | extern char *log_buf_addr_get(void); |
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| 12 | extern u32 log_buf_len_get(void); |
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| 13 | |||
| 14 | /* printk's without a loglevel use this.. */ |
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| 15 | #define MESSAGE_LOGLEVEL_DEFAULT CONFIG_MESSAGE_LOGLEVEL_DEFAULT |
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| 16 | |||
| 17 | /* We show everything that is MORE important than this.. */ |
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| 18 | #define CONSOLE_LOGLEVEL_SILENT 0 /* Mum's the word */ |
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| 19 | #define CONSOLE_LOGLEVEL_MIN 1 /* Minimum loglevel we let people use */ |
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| 20 | #define CONSOLE_LOGLEVEL_QUIET 4 /* Shhh ..., when booted with "quiet" */ |
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| 21 | #define CONSOLE_LOGLEVEL_DEFAULT 7 /* anything MORE serious than KERN_DEBUG */ |
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| 22 | #define CONSOLE_LOGLEVEL_DEBUG 10 /* issue debug messages */ |
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| 23 | #define CONSOLE_LOGLEVEL_MOTORMOUTH 15 /* You can't shut this one up */ |
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| 24 | |||
| 25 | struct va_format { |
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| 26 | const char *fmt; |
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| 27 | va_list *va; |
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| 28 | }; |
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| 29 | |||
| 30 | /* |
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| 31 | * FW_BUG |
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| 32 | * Add this to a message where you are sure the firmware is buggy or behaves |
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| 33 | * really stupid or out of spec. Be aware that the responsible BIOS developer |
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| 34 | * should be able to fix this issue or at least get a concrete idea of the |
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| 35 | * problem by reading your message without the need of looking at the kernel |
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| 36 | * code. |
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| 37 | * |
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| 38 | * Use it for definite and high priority BIOS bugs. |
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| 39 | * |
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| 40 | * FW_WARN |
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| 41 | * Use it for not that clear (e.g. could the kernel messed up things already?) |
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| 42 | * and medium priority BIOS bugs. |
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| 43 | * |
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| 44 | * FW_INFO |
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| 45 | * Use this one if you want to tell the user or vendor about something |
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| 46 | * suspicious, but generally harmless related to the firmware. |
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| 47 | * |
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| 48 | * Use it for information or very low priority BIOS bugs. |
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| 49 | */ |
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| 50 | #define FW_BUG "[Firmware Bug]: " |
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| 51 | #define FW_WARN "[Firmware Warn]: " |
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| 52 | #define FW_INFO "[Firmware Info]: " |
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| 53 | |||
| 54 | /* |
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| 55 | * HW_ERR |
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| 56 | * Add this to a message for hardware errors, so that user can report |
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| 57 | * it to hardware vendor instead of LKML or software vendor. |
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| 58 | */ |
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| 59 | #define HW_ERR "[Hardware Error]: " |
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| 60 | |||
| 61 | /* |
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| 62 | * DEPRECATED |
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| 63 | * Add this to a message whenever you want to warn user space about the use |
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| 64 | * of a deprecated aspect of an API so they can stop using it |
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| 65 | */ |
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| 66 | #define DEPRECATED "[Deprecated]: " |
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| 67 | |||
| 6082 | serge | 68 | /* |
| 69 | * Dummy printk for disabled debugging statements to use whilst maintaining |
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| 70 | * gcc's format and side-effect checking. |
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| 71 | */ |
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| 5270 | serge | 72 | static inline __printf(1, 2) |
| 73 | int no_printk(const char *fmt, ...) |
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| 74 | { |
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| 75 | return 0; |
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| 76 | } |
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| 77 | |||
| 78 | __printf(1, 2) int dbgprintf(const char *fmt, ...); |
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| 79 | |||
| 80 | #define printk(fmt, arg...) dbgprintf(fmt , ##arg) |
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| 81 | |||
| 82 | #ifndef pr_fmt |
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| 83 | #define pr_fmt(fmt) fmt |
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| 84 | #endif |
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| 85 | |||
| 86 | #define pr_debug(fmt, ...) \ |
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| 87 | printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) |
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| 88 | |||
| 89 | /* |
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| 90 | * These can be used to print at the various log levels. |
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| 91 | * All of these will print unconditionally, although note that pr_debug() |
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| 92 | * and other debug macros are compiled out unless either DEBUG is defined |
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| 93 | * or CONFIG_DYNAMIC_DEBUG is set. |
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| 94 | */ |
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| 95 | #define pr_emerg(fmt, ...) \ |
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| 96 | printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) |
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| 97 | #define pr_alert(fmt, ...) \ |
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| 98 | printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__) |
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| 99 | #define pr_crit(fmt, ...) \ |
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| 100 | printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__) |
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| 101 | #define pr_err(fmt, ...) \ |
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| 102 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) |
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| 103 | #define pr_warning(fmt, ...) \ |
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| 104 | printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) |
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| 105 | #define pr_warn pr_warning |
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| 106 | #define pr_notice(fmt, ...) \ |
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| 107 | printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__) |
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| 108 | #define pr_info(fmt, ...) \ |
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| 109 | printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__) |
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| 6082 | serge | 110 | /* |
| 111 | * Like KERN_CONT, pr_cont() should only be used when continuing |
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| 112 | * a line with no newline ('\n') enclosed. Otherwise it defaults |
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| 113 | * back to KERN_DEFAULT. |
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| 114 | */ |
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| 5270 | serge | 115 | #define pr_cont(fmt, ...) \ |
| 116 | printk(KERN_CONT fmt, ##__VA_ARGS__) |
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| 117 | |||
| 118 | /* pr_devel() should produce zero code unless DEBUG is defined */ |
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| 119 | #ifdef DEBUG |
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| 120 | #define pr_devel(fmt, ...) \ |
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| 121 | printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) |
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| 122 | #else |
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| 123 | #define pr_devel(fmt, ...) \ |
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| 124 | no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) |
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| 125 | #endif |
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| 126 | |||
| 127 | /* |
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| 128 | * Print a one-time message (analogous to WARN_ONCE() et al): |
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| 129 | */ |
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| 130 | |||
| 131 | #ifdef CONFIG_PRINTK |
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| 132 | #define printk_once(fmt, ...) \ |
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| 133 | ({ \ |
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| 134 | static bool __print_once __read_mostly; \ |
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| 135 | \ |
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| 136 | if (!__print_once) { \ |
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| 137 | __print_once = true; \ |
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| 138 | printk(fmt, ##__VA_ARGS__); \ |
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| 139 | } \ |
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| 140 | }) |
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| 141 | #define printk_deferred_once(fmt, ...) \ |
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| 142 | ({ \ |
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| 143 | static bool __print_once __read_mostly; \ |
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| 144 | \ |
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| 145 | if (!__print_once) { \ |
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| 146 | __print_once = true; \ |
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| 147 | printk_deferred(fmt, ##__VA_ARGS__); \ |
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| 148 | } \ |
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| 149 | }) |
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| 150 | #else |
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| 151 | #define printk_once(fmt, ...) \ |
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| 152 | no_printk(fmt, ##__VA_ARGS__) |
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| 153 | #define printk_deferred_once(fmt, ...) \ |
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| 154 | no_printk(fmt, ##__VA_ARGS__) |
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| 155 | #endif |
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| 156 | |||
| 157 | #define pr_emerg_once(fmt, ...) \ |
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| 158 | printk_once(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) |
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| 159 | #define pr_alert_once(fmt, ...) \ |
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| 160 | printk_once(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__) |
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| 161 | #define pr_crit_once(fmt, ...) \ |
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| 162 | printk_once(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__) |
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| 163 | #define pr_err_once(fmt, ...) \ |
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| 164 | printk_once(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) |
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| 165 | #define pr_warn_once(fmt, ...) \ |
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| 166 | printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) |
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| 167 | #define pr_notice_once(fmt, ...) \ |
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| 168 | printk_once(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__) |
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| 169 | #define pr_info_once(fmt, ...) \ |
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| 170 | printk_once(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__) |
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| 171 | #define pr_cont_once(fmt, ...) \ |
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| 172 | printk_once(KERN_CONT pr_fmt(fmt), ##__VA_ARGS__) |
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| 173 | |||
| 174 | #if defined(DEBUG) |
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| 175 | #define pr_devel_once(fmt, ...) \ |
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| 176 | printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) |
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| 177 | #else |
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| 178 | #define pr_devel_once(fmt, ...) \ |
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| 179 | no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) |
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| 180 | #endif |
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| 181 | |||
| 182 | /* If you are writing a driver, please use dev_dbg instead */ |
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| 183 | #if defined(DEBUG) |
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| 184 | #define pr_debug_once(fmt, ...) \ |
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| 185 | printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) |
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| 186 | #else |
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| 187 | #define pr_debug_once(fmt, ...) \ |
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| 188 | no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) |
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| 189 | #endif |
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| 190 | |||
| 191 | /* |
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| 192 | * ratelimited messages with local ratelimit_state, |
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| 193 | * no local ratelimit_state used in the !PRINTK case |
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| 194 | */ |
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| 195 | #ifdef CONFIG_PRINTK |
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| 196 | #define printk_ratelimited(fmt, ...) \ |
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| 197 | ({ \ |
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| 198 | static DEFINE_RATELIMIT_STATE(_rs, \ |
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| 199 | DEFAULT_RATELIMIT_INTERVAL, \ |
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| 200 | DEFAULT_RATELIMIT_BURST); \ |
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| 201 | \ |
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| 202 | if (__ratelimit(&_rs)) \ |
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| 203 | printk(fmt, ##__VA_ARGS__); \ |
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| 204 | }) |
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| 205 | #else |
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| 206 | #define printk_ratelimited(fmt, ...) \ |
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| 207 | no_printk(fmt, ##__VA_ARGS__) |
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| 208 | #endif |
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| 209 | |||
| 210 | #define pr_emerg_ratelimited(fmt, ...) \ |
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| 211 | printk_ratelimited(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) |
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| 212 | #define pr_alert_ratelimited(fmt, ...) \ |
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| 213 | printk_ratelimited(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__) |
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| 214 | #define pr_crit_ratelimited(fmt, ...) \ |
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| 215 | printk_ratelimited(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__) |
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| 216 | #define pr_err_ratelimited(fmt, ...) \ |
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| 217 | printk_ratelimited(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) |
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| 218 | #define pr_warn_ratelimited(fmt, ...) \ |
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| 219 | printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) |
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| 220 | #define pr_notice_ratelimited(fmt, ...) \ |
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| 221 | printk_ratelimited(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__) |
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| 222 | #define pr_info_ratelimited(fmt, ...) \ |
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| 223 | printk_ratelimited(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__) |
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| 224 | /* no pr_cont_ratelimited, don't do that... */ |
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| 225 | |||
| 226 | #if defined(DEBUG) |
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| 227 | #define pr_devel_ratelimited(fmt, ...) \ |
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| 228 | printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) |
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| 229 | #else |
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| 230 | #define pr_devel_ratelimited(fmt, ...) \ |
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| 231 | no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) |
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| 232 | #endif |
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| 233 | |||
| 234 | /* If you are writing a driver, please use dev_dbg instead */ |
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| 235 | #if defined(CONFIG_DYNAMIC_DEBUG) |
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| 236 | /* descriptor check is first to prevent flooding with "callbacks suppressed" */ |
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| 237 | #define pr_debug_ratelimited(fmt, ...) \ |
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| 238 | do { \ |
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| 239 | static DEFINE_RATELIMIT_STATE(_rs, \ |
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| 240 | DEFAULT_RATELIMIT_INTERVAL, \ |
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| 241 | DEFAULT_RATELIMIT_BURST); \ |
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| 242 | DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \ |
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| 243 | if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT) && \ |
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| 244 | __ratelimit(&_rs)) \ |
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| 245 | __dynamic_pr_debug(&descriptor, fmt, ##__VA_ARGS__); \ |
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| 246 | } while (0) |
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| 247 | #elif defined(DEBUG) |
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| 248 | #define pr_debug_ratelimited(fmt, ...) \ |
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| 249 | printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) |
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| 250 | #else |
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| 251 | #define pr_debug_ratelimited(fmt, ...) \ |
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| 252 | no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) |
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| 253 | #endif |
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| 254 | |||
| 255 | extern const struct file_operations kmsg_fops; |
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| 256 | |||
| 257 | enum { |
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| 258 | DUMP_PREFIX_NONE, |
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| 259 | DUMP_PREFIX_ADDRESS, |
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| 260 | DUMP_PREFIX_OFFSET |
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| 261 | }; |
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| 6082 | serge | 262 | extern int hex_dump_to_buffer(const void *buf, size_t len, int rowsize, |
| 263 | int groupsize, char *linebuf, size_t linebuflen, |
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| 264 | bool ascii); |
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| 5270 | serge | 265 | |
| 266 | extern void print_hex_dump(const char *level, const char *prefix_str, |
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| 267 | int prefix_type, int rowsize, int groupsize, |
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| 268 | const void *buf, size_t len, bool ascii); |
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| 269 | extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type, |
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| 270 | const void *buf, size_t len); |
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| 271 | |||
| 272 | |||
| 273 | #endif |