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- /* $Id: kernel.h,v 1.2 2002/04/26 23:09:08 smilcke Exp $ */
-
- #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>
-
- /* Optimization barrier */
- /* The "volatile" is due to gcc bugs */
- //#define barrier() __asm__ __volatile__("": : :"memory")
- #define barrier()
-
- #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
-
- extern void math_error(void);
- extern struct notifier_block *panic_notifier_list;
- NORET_TYPE void panic(const char * fmt, ...);
-
- NORET_TYPE void do_exit(long error_code);
-
- extern unsigned long simple_strtoul(const char *,char **,unsigned int);
- extern long simple_strtol(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 int session_of_pgrp(int pgrp);
-
- extern int printk(const char * fmt, ...);
- // Conditional printk
- #ifdef USEPRINTK
- #define CPK(x) (x)
- #else
- #define CPK(x)
- #endif
-
- #if DEBUG
- #define pr_debug(fmt,arg)
- #else
- #define pr_debug(fmt,arg)
- #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]
-
- #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
-