| 1 | /* $Id: kernel.h 142 2000-04-23 14:55:46Z ktk $ */
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| 2 |
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| 3 | #ifndef _LINUX_KERNEL_H
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| 4 | #define _LINUX_KERNEL_H
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| 5 |
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| 6 | /*
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| 7 | * 'kernel.h' contains some often-used function prototypes etc
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| 8 | */
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| 9 |
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| 10 | #ifdef __KERNEL__
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| 11 |
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| 12 | #include <stdarg.h>
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| 13 | //#include <linux/linkage.h>
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| 14 |
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| 15 | /* Optimization barrier */
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| 16 | /* The "volatile" is due to gcc bugs */
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| 17 | #define barrier() __asm__ __volatile__("": : :"memory")
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| 18 |
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| 19 | #define STACK_MAGIC 0xdeadbeef
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| 20 |
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| 21 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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| 22 |
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| 23 | #define KERN_EMERG "<0>" /* system is unusable */
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| 24 | #define KERN_ALERT "<1>" /* action must be taken immediately */
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| 25 | #define KERN_CRIT "<2>" /* critical conditions */
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| 26 | #define KERN_ERR "<3>" /* error conditions */
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| 27 | #define KERN_WARNING "<4>" /* warning conditions */
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| 28 | #define KERN_NOTICE "<5>" /* normal but significant condition */
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| 29 | #define KERN_INFO "<6>" /* informational */
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| 30 | #define KERN_DEBUG "<7>" /* debug-level messages */
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| 31 |
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| 32 | # define NORET_TYPE /**/
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| 33 | # define ATTRIB_NORET __attribute__((noreturn))
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| 34 | # define NORET_AND noreturn,
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| 35 |
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| 36 | #ifdef __i386__
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| 37 | #define FASTCALL(x) x __attribute__((regparm(3)))
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| 38 | #else
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| 39 | #define FASTCALL(x) x
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| 40 | #endif
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| 41 |
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| 42 | extern void math_error(void);
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| 43 | extern struct notifier_block *panic_notifier_list;
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| 44 | NORET_TYPE void panic(const char * fmt, ...);
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| 45 |
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| 46 | NORET_TYPE void do_exit(long error_code);
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| 47 |
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| 48 | extern unsigned long simple_strtoul(const char *,char **,unsigned int);
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| 49 | extern long simple_strtol(const char *,char **,unsigned int);
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| 50 | extern int sprintf(char * buf, const char * fmt, ...);
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| 51 | extern int vsprintf(char *buf, const char *, va_list);
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| 52 | extern int get_option(char **str, int *pint);
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| 53 | extern char *get_options(char *str, int nints, int *ints);
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| 54 |
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| 55 | extern int session_of_pgrp(int pgrp);
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| 56 |
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| 57 | int printk(const char * fmt, ...);
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| 58 |
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| 59 |
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| 60 | #if DEBUG
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| 61 | #define pr_debug(fmt,arg)
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| 62 | #else
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| 63 | #define pr_debug(fmt,arg)
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| 64 | #endif
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| 65 |
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| 66 | #define pr_info(fmt,arg) \
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| 67 | printk(KERN_INFO fmt,##arg)
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| 68 |
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| 69 | /*
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| 70 | * Display an IP address in readable format.
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| 71 | */
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| 72 |
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| 73 | #define NIPQUAD(addr) \
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| 74 | ((unsigned char *)&addr)[0], \
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| 75 | ((unsigned char *)&addr)[1], \
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| 76 | ((unsigned char *)&addr)[2], \
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| 77 | ((unsigned char *)&addr)[3]
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| 78 |
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| 79 | #endif /* __KERNEL__ */
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| 80 |
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| 81 | #define SI_LOAD_SHIFT 16
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| 82 | struct sysinfo {
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| 83 | long uptime; /* Seconds since boot */
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| 84 | unsigned long loads[3]; /* 1, 5, and 15 minute load averages */
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| 85 | unsigned long totalram; /* Total usable main memory size */
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| 86 | unsigned long freeram; /* Available memory size */
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| 87 | unsigned long sharedram; /* Amount of shared memory */
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| 88 | unsigned long bufferram; /* Memory used by buffers */
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| 89 | unsigned long totalswap; /* Total swap space size */
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| 90 | unsigned long freeswap; /* swap space still available */
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| 91 | unsigned short procs; /* Number of current processes */
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| 92 | unsigned long totalhigh; /* Total high memory size */
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| 93 | unsigned long freehigh; /* Available high memory size */
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| 94 | unsigned int mem_unit; /* Memory unit size in bytes */
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| 95 | char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */
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| 96 | };
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| 97 |
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| 98 | #endif
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