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Diffstat (limited to 'include/linux/printk.h')
| -rw-r--r-- | include/linux/printk.h | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/include/linux/printk.h b/include/linux/printk.h new file mode 100644 index 0000000000..07403ea60c --- /dev/null +++ b/include/linux/printk.h @@ -0,0 +1,240 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef __LINUX_PRINTK_H +#define __LINUX_PRINTK_H + +#include <linux/list.h> +#include <linux/err.h> +#include <printk.h> +#include <stdarg.h> + +#define MSG_EMERG 0 /* system is unusable */ +#define MSG_ALERT 1 /* action must be taken immediately */ +#define MSG_CRIT 2 /* critical conditions */ +#define MSG_ERR 3 /* error conditions */ +#define MSG_WARNING 4 /* warning conditions */ +#define MSG_NOTICE 5 /* normal but significant condition */ +#define MSG_INFO 6 /* informational */ +#define MSG_DEBUG 7 /* debug-level messages */ +#define MSG_VDEBUG 8 /* verbose debug messages */ + +#ifdef VERBOSE_DEBUG +#define LOGLEVEL MSG_VDEBUG +#elif defined DEBUG +#define LOGLEVEL MSG_DEBUG +#else +#define LOGLEVEL CONFIG_COMPILE_LOGLEVEL +#endif + +/* debugging and troubleshooting/diagnostic helpers. */ +struct device; + +#ifndef CONFIG_CONSOLE_NONE +int dev_printf(int level, const struct device *dev, const char *format, ...) + __attribute__ ((format(__printf__, 3, 4))); +#else +static inline int dev_printf(int level, const struct device *dev, + const char *format, ...) +{ + return 0; +} +#endif + +#if (!defined(__PBL__) && !defined(CONFIG_CONSOLE_NONE)) || \ + (defined(__PBL__) && defined(CONFIG_PBL_CONSOLE)) +int pr_print(int level, const char *format, ...) + __attribute__ ((format(__printf__, 2, 3))); +#else +static int pr_print(int level, const char *format, ...) + __attribute__ ((format(__printf__, 2, 3))); +static inline int pr_print(int level, const char *format, ...) +{ + return 0; +} +#endif + +#define __dev_printf(level, dev, format, args...) \ + ({ \ + (level) <= LOGLEVEL ? dev_printf((level), (dev), (format), ##args) : 0; \ + }) + +#define __dev_printf_once(level, dev, format, args...) do { \ + static bool __print_once; \ + \ + if (!__print_once && (level) <= LOGLEVEL) { \ + __print_once = true; \ + dev_printf((level), (dev), (format), ##args); \ + } \ +} while (0) + +#define dev_emerg(dev, format, arg...) \ + __dev_printf(0, (dev) , format , ## arg) +#define dev_alert(dev, format, arg...) \ + __dev_printf(1, (dev) , format , ## arg) +#define dev_crit(dev, format, arg...) \ + __dev_printf(2, (dev) , format , ## arg) +#define dev_err(dev, format, arg...) \ + __dev_printf(3, (dev) , format , ## arg) +#define dev_warn(dev, format, arg...) \ + __dev_printf(4, (dev) , format , ## arg) +#define dev_notice(dev, format, arg...) \ + __dev_printf(5, (dev) , format , ## arg) +#define dev_info(dev, format, arg...) \ + __dev_printf(6, (dev) , format , ## arg) +#define dev_dbg(dev, format, arg...) \ + __dev_printf(7, (dev) , format , ## arg) +#define dev_vdbg(dev, format, arg...) \ + __dev_printf(8, (dev) , format , ## arg) + +#define dev_emerg_once(dev, format, arg...) \ + __dev_printf_once(0, (dev) , format , ## arg) +#define dev_alert_once(dev, format, arg...) \ + __dev_printf_once(1, (dev) , format , ## arg) +#define dev_crit_once(dev, format, arg...) \ + __dev_printf_once(2, (dev) , format , ## arg) +#define dev_err_once(dev, format, arg...) \ + __dev_prin_oncetf(3, (dev) , format , ## arg) +#define dev_warn_once(dev, format, arg...) \ + __dev_printf_once(4, (dev) , format , ## arg) +#define dev_notice_once(dev, format, arg...) \ + __dev_printf(_once5, (dev) , format , ## arg) +#define dev_info_once(dev, format, arg...) \ + __dev_printf_once(6, (dev) , format , ## arg) +#define dev_dbg_once(dev, format, arg...) \ + __dev_prin_oncetf(7, (dev) , format , ## arg) +#define dev_vdbg_once(dev, format, arg...) \ + __dev_printf_once(8, (dev) , format , ## arg) + +#if LOGLEVEL >= MSG_ERR +int dev_err_probe(struct device *dev, int err, const char *fmt, ...) + __attribute__ ((format(__printf__, 3, 4))); +#elif !defined(dev_err_probe) +static int dev_err_probe(struct device *dev, int err, const char *fmt, ...) + __attribute__ ((format(__printf__, 3, 4))); +static inline int dev_err_probe(struct device *dev, int err, const char *fmt, + ...) +{ + return err; +} +#endif + +#define dev_errp_probe(dev, errptr, args...) dev_err_probe((dev), PTR_ERR(errptr), args) + +#define __pr_printk(level, format, args...) \ + ({ \ + (level) <= LOGLEVEL ? pr_print((level), (format), ##args) : 0; \ + }) + +#define __pr_printk_once(level, format, args...) do { \ + static bool __print_once; \ + \ + if (!__print_once && (level) <= LOGLEVEL) { \ + __print_once = true; \ + pr_print((level), (format), ##args); \ + } \ +} while (0) + +#ifndef pr_fmt +#define pr_fmt(fmt) fmt +#endif + +#define pr_emerg(fmt, arg...) __pr_printk(0, pr_fmt(fmt), ##arg) +#define pr_alert(fmt, arg...) __pr_printk(1, pr_fmt(fmt), ##arg) +#define pr_crit(fmt, arg...) __pr_printk(2, pr_fmt(fmt), ##arg) +#define pr_err(fmt, arg...) __pr_printk(3, pr_fmt(fmt), ##arg) +#define pr_warning(fmt, arg...) __pr_printk(4, pr_fmt(fmt), ##arg) +#define pr_notice(fmt, arg...) __pr_printk(5, pr_fmt(fmt), ##arg) +#define pr_info(fmt, arg...) __pr_printk(6, pr_fmt(fmt), ##arg) +#define pr_debug(fmt, arg...) __pr_printk(7, pr_fmt(fmt), ##arg) +#define debug(fmt, arg...) __pr_printk(7, pr_fmt(fmt), ##arg) +#define pr_vdebug(fmt, arg...) __pr_printk(8, pr_fmt(fmt), ##arg) +#define pr_cont(fmt, arg...) __pr_printk(-1, fmt, ##arg) + +#define pr_emerg_once(fmt, arg...) __pr_printk_once(0, pr_fmt(fmt), ##arg) +#define pr_alert_once(fmt, arg...) __pr_printk_once(1, pr_fmt(fmt), ##arg) +#define pr_crit_once(fmt, arg...) __pr_printk_once(2, pr_fmt(fmt), ##arg) +#define pr_err_once(fmt, arg...) __pr_printk_once(3, pr_fmt(fmt), ##arg) +#define pr_warning_once(fmt, arg...) __pr_printk_once(4, pr_fmt(fmt), ##arg) +#define pr_notice_once(fmt, arg...) __pr_printk_once(5, pr_fmt(fmt), ##arg) +#define pr_info_once(fmt, arg...) __pr_printk_once(6, pr_fmt(fmt), ##arg) +#define pr_debug_once(fmt, arg...) __pr_printk_once(7, pr_fmt(fmt), ##arg) +#define pr_vdebug_once(fmt, arg...) __pr_printk_once(8, pr_fmt(fmt), ##arg) + +#define pr_warn pr_warning +#define pr_warn_once pr_warning_once + +int memory_display(const void *addr, loff_t offs, unsigned nbytes, int size, + int swab); +int __pr_memory_display(int level, const void *addr, loff_t offs, unsigned nbytes, + int size, int swab, const char *format, ...); + +#define pr_memory_display(level, addr, offs, nbytes, size, swab) \ + ({ \ + (level) <= LOGLEVEL ? __pr_memory_display((level), (addr), \ + (offs), (nbytes), (size), (swab), pr_fmt("")) : 0; \ + }) + +struct log_entry { + struct list_head list; + uint64_t timestamp; + int level; + char msg[]; +}; + +extern struct list_head barebox_logbuf; + +extern void log_clean(unsigned int limit); + +#define BAREBOX_LOG_PRINT_RAW BIT(2) +#define BAREBOX_LOG_DIFF_TIME BIT(1) +#define BAREBOX_LOG_PRINT_TIME BIT(0) + +int log_writefile(const char *filepath); +int log_print(unsigned flags, unsigned levels); + +struct va_format { + const char *fmt; + va_list *va; +}; + +#if LOGLEVEL >= MSG_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 + +/** + * print_hex_dump_bytes - shorthand form of print_hex_dump() with default params + * @prefix_str: string to prefix each line with; + * caller supplies trailing spaces for alignment if desired + * @prefix_type: controls whether prefix of an offset, address, or none + * is printed (%DUMP_PREFIX_OFFSET, %DUMP_PREFIX_ADDRESS, %DUMP_PREFIX_NONE) + * @buf: data blob to dump + * @len: number of bytes in the @buf + * + * Calls print_hex_dump(), with log level of KERN_DEBUG, + * rowsize of 16, groupsize of 1, and ASCII output included. + */ +#define print_hex_dump_bytes(prefix_str, prefix_type, buf, len) \ + print_hex_dump_debug(prefix_str, prefix_type, 16, 1, buf, len, true) + +#define dev_WARN_ONCE(dev, condition, format...) ({ \ + static int __warned; \ + int __ret_warn_once = !!(condition); \ + \ + if (unlikely(__ret_warn_once)) { \ + if (!__warned) { \ + __warned = 1; \ + dev_warn(dev, format); \ + } \ + } \ + unlikely(__ret_warn_once); \ +}) + +#endif |