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Diffstat (limited to 'include/linux/kernel.h')
| -rw-r--r-- | include/linux/kernel.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h new file mode 100644 index 000000000000..50ee12471896 --- /dev/null +++ b/include/linux/kernel.h @@ -0,0 +1,133 @@ +#ifndef _LINUX_KERNEL_H +#define _LINUX_KERNEL_H + +/* + * 'kernel.h' contains some often-used function prototypes etc + */ + +#ifdef __KERNEL__ + +#include <stdarg.h> +#include <linux/linkage.h> +#include <linux/stddef.h> + +/* Optimization barrier */ +/* The "volatile" is due to gcc bugs */ +#define barrier() __asm__ __volatile__("": : :"memory") + +#define INT_MAX ((int)(~0U>>1)) +#define INT_MIN (-INT_MAX - 1) +#define UINT_MAX (~0U) +#define LONG_MAX ((long)(~0UL>>1)) +#define LONG_MIN (-LONG_MAX - 1) +#define ULONG_MAX (~0UL) + +#define STACK_MAGIC 0xdeadbeef + +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) + +#define KERN_EMERG "<0>" /* system is unusable */ +#define KERN_ALERT "<1>" /* action must be taken immediately */ +#define KERN_CRIT "<2>" /* critical conditions */ +#define KERN_ERR "<3>" /* error conditions */ +#define KERN_WARNING "<4>" /* warning conditions */ +#define KERN_NOTICE "<5>" /* normal but significant condition */ +#define KERN_INFO "<6>" /* informational */ +#define KERN_DEBUG "<7>" /* debug-level messages */ + +# define NORET_TYPE /**/ +# define ATTRIB_NORET __attribute__((noreturn)) +# define NORET_AND noreturn, + +#ifdef __i386__ +#define FASTCALL(x) x __attribute__((regparm(3))) +#else +#define FASTCALL(x) x +#endif + +struct semaphore; + +extern struct notifier_block *panic_notifier_list; +NORET_TYPE void panic(const char * fmt, ...) + __attribute__ ((NORET_AND format (printf, 1, 2))); +NORET_TYPE void do_exit(long error_code) + ATTRIB_NORET; +NORET_TYPE void up_and_exit(struct semaphore *, long) + ATTRIB_NORET; +extern unsigned long simple_strtoul(const char *,char **,unsigned int); +extern long simple_strtol(const char *,char **,unsigned int); +extern unsigned long long simple_strtoull(const char *,char **,unsigned int); +extern long long simple_strtoll(const char *,char **,unsigned int); +extern int sprintf(char * buf, const char * fmt, ...); +extern int vsprintf(char *buf, const char *, va_list); +extern int get_option(char **str, int *pint); +extern char *get_options(char *str, int nints, int *ints); +extern unsigned long memparse(char *ptr, char **retptr); +extern void dev_probe_lock(void); +extern void dev_probe_unlock(void); + +extern int session_of_pgrp(int pgrp); + +asmlinkage int printk(const char * fmt, ...) + __attribute__ ((format (printf, 1, 2))); + +extern int console_loglevel; + +static inline void console_silent(void) +{ + console_loglevel = 0; +} + +static inline void console_verbose(void) +{ + if (console_loglevel) + console_loglevel = 15; +} + +#if DEBUG +#define pr_debug(fmt,arg...) \ + printk(KERN_DEBUG fmt,##arg) +#else +#define pr_debug(fmt,arg...) \ + do { } while (0) +#endif + +#define pr_info(fmt,arg...) \ + printk(KERN_INFO fmt,##arg) + +/* + * Display an IP address in readable format. + */ + +#define NIPQUAD(addr) \ + ((unsigned char *)&addr)[0], \ + ((unsigned char *)&addr)[1], \ + ((unsigned char *)&addr)[2], \ + ((unsigned char *)&addr)[3] + +#define HIPQUAD(addr) \ + ((unsigned char *)&addr)[3], \ + ((unsigned char *)&addr)[2], \ + ((unsigned char *)&addr)[1], \ + ((unsigned char *)&addr)[0] + +#endif /* __KERNEL__ */ + +#define SI_LOAD_SHIFT 16 +struct sysinfo { + long uptime; /* Seconds since boot */ + unsigned long loads[3]; /* 1, 5, and 15 minute load averages */ + unsigned long totalram; /* Total usable main memory size */ + unsigned long freeram; /* Available memory size */ + unsigned long sharedram; /* Amount of shared memory */ + unsigned long bufferram; /* Memory used by buffers */ + unsigned long totalswap; /* Total swap space size */ + unsigned long freeswap; /* swap space still available */ + unsigned short procs; /* Number of current processes */ + unsigned long totalhigh; /* Total high memory size */ + unsigned long freehigh; /* Available high memory size */ + unsigned int mem_unit; /* Memory unit size in bytes */ + char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */ +}; + +#endif |