The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/include/tools.h

Version: -  FREEBSD  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-2  -  FREEBSD-11-1  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-4  -  FREEBSD-10-3  -  FREEBSD-10-2  -  FREEBSD-10-1  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-3  -  FREEBSD-9-2  -  FREEBSD-9-1  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-4  -  FREEBSD-8-3  -  FREEBSD-8-2  -  FREEBSD-8-1  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-4  -  FREEBSD-7-3  -  FREEBSD-7-2  -  FREEBSD-7-1  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-4  -  FREEBSD-6-3  -  FREEBSD-6-2  -  FREEBSD-6-1  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-5  -  FREEBSD-5-4  -  FREEBSD-5-3  -  FREEBSD-5-2  -  FREEBSD-5-1  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
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    1 /* Constants describing the disk */
    2 #define SECTOR_SIZE     512
    3 #define SECTOR_SHIFT    9
    4 #define RATIO(b)        ((b)/SECTOR_SIZE)
    5 #define ISO_SECTOR_SIZE 2048
    6 #define ISO_PVD_OFFSET  16
    7 #define HRATIO          (SECTOR_SIZE / HCLICK_SIZE)
    8 #define PARAMSEC        1       /* sector containing boot parameters */
    9 #define DSKBASE         0x1E    /* floppy disk parameter vector */
   10 #define DSKPARSIZE      11      /* there are this many bytes of parameters */
   11 #define ESC             '\33'   /* escape key */
   12 #define HEADERSEG       0x0060  /* place for an array of struct exec's */
   13 #define MINIXSEG        0x0080  /* MINIX loaded here (rounded up to a click) */
   14 #define BOOTSEG         0x07C0  /* bootstraps are loaded here */
   15 #define SIGNATURE       0xAA55  /* proper bootstraps have this signature */
   16 #define SIGNATPOS       510     /* offset within bootblock */
   17 #define FREESEG         0x0800  /* Memory from FREESEG to cseg is free */
   18 #define MSEC_PER_TICK   55      /* 18.2 ticks per second */
   19 
   20 /* Scan codes for four different keyboards (from kernel/keyboard.c) */
   21 #define DUTCH_EXT_SCAN    32    /* 'd' */
   22 #define OLIVETTI_SCAN     12    /* '=' key on olivetti */
   23 #define STANDARD_SCAN     13    /* '=' key on IBM */
   24 #define US_EXT_SCAN       22    /* 'u' */
   25 
   26 /* Other */
   27 #define ROOT_INO ((ino_t) 1)    /* Inode nr of root dir. */
   28 #define IM_NAME_MAX       63
   29 
   30 /* Variables */
   31 #ifndef EXTERN
   32 #define EXTERN extern
   33 #endif
   34 
   35 typedef struct vector {
   36   u16_t offset;
   37   u16_t segment;
   38 } vector;
   39 
   40 struct image_header {
   41   char name[IM_NAME_MAX + 1];   /* Null terminated. */
   42   struct exec process;
   43 };
   44 
   45 EXTERN vector rem_part;         /* boot partition table entry */
   46 EXTERN u16_t cseg, dseg;        /* code and data segment of the boot program */
   47 EXTERN u32_t runsize;           /* size of this program */
   48 EXTERN u16_t device;            /* drive being booted from */
   49 EXTERN u16_t heads, sectors;    /* the drive's number of heads and sectors */
   50 extern u16_t eqscancode;        /* Set by peek/getch() if they see a '=' */
   51 
   52 /* Sticky attributes */
   53 #define E_SPECIAL       0x01    /* These are known to the program */
   54 #define E_DEV           0x02    /* The value is a device name */
   55 #define E_RESERVED      0x04    /* May not be set by user, e.g. scancode */
   56 #define E_STICKY        0x07    /* Don't go once set */
   57 
   58 /* Volatile attributes */
   59 #define E_VAR           0x08    /* Variable */
   60 #define E_FUNCTION      0x10    /* Function definition */
   61 
   62 typedef struct environment {
   63   struct environment *next;
   64   char flags;
   65   char *name;                   /* name = value */
   66   char *arg;                    /* name(arg) {value} */
   67   char *value;
   68   char *defval;                 /* Safehouse for default values */
   69 } environment;
   70 
   71 /* External variables */
   72 EXTERN environment *env;        /* Lists the environment */
   73 EXTERN int fsok;                /* True if the boot device contains an FS */
   74 EXTERN u32_t lowsec;            /* Offset to the file system on the boot dev */
   75 
   76 /* Prototypes */
   77 _PROTOTYPE( off_t r_super, (void));
   78 _PROTOTYPE( void r_stat, (Ino_t _inum, struct stat *_stp ));
   79 _PROTOTYPE( ino_t r_readdir, (char *_name ));
   80 _PROTOTYPE( off_t r_vir2abs, (off_t _virblk ));
   81 _PROTOTYPE( ino_t r_lookup, (Ino_t _cwd, char *_path ));
   82 
   83 #ifdef _MONHEAD
   84 _PROTOTYPE( void readerr, (off_t _sec, int _err ));
   85 _PROTOTYPE( int numprefix, (char *_s, char **_ps ));
   86 _PROTOTYPE( int numeric, (char *_s ));
   87 _PROTOTYPE( dev_t name2dev, (char *_name ));
   88 _PROTOTYPE( int delay, (char *_msec ));
   89 _PROTOTYPE( char *unix_err, (int _err ));
   90 _PROTOTYPE( void init_cache, (void));
   91 _PROTOTYPE( void invalidate_cache, (void));
   92 _PROTOTYPE( char *b_value, (char *_name ));
   93 _PROTOTYPE( void raw_copy, (int _doff, int _dseg, int _soff, int _sseg,
   94                                                 int _count));
   95 _PROTOTYPE( void raw_clear, (int _off, int _seg, int _count));
   96 _PROTOTYPE( void bootstrap, (int _device, int _partoff, int _partseg));
   97 
   98 _PROTOTYPE( long a2l, (char *_a ));
   99 _PROTOTYPE( char *ul2a, (u32_t _n ));
  100 _PROTOTYPE( char *u2a, (int _n1 ));
  101 
  102 /* Functions defined in monhead.s and usable by other files. */
  103 _PROTOTYPE( void reset_video, (int color));
  104 _PROTOTYPE( int dev_geometry, (void));
  105 _PROTOTYPE( u16_t get_ext_memsize, (void));
  106 _PROTOTYPE( u16_t get_low_memsize, (void));
  107 _PROTOTYPE( u16_t get_processor, (void));
  108 _PROTOTYPE( u32_t get_tick, (void));
  109 _PROTOTYPE( u16_t get_video, (void));
  110 _PROTOTYPE( u16_t get_word, (int _off, int _seg));
  111 _PROTOTYPE( int getchar, (void));
  112 _PROTOTYPE( void minix, (void));
  113 _PROTOTYPE( void minix86, (int _kcs, int _kds, char *_bpar, int _psize));
  114 _PROTOTYPE( void minix386, (int _kcs, int _kds, char *_bpar, int _psize));
  115 _PROTOTYPE( int peekchar, (void));
  116 _PROTOTYPE( void put_word, (int _off, int _seg, int _word));
  117 _PROTOTYPE( int putchar, (char _c));
  118 _PROTOTYPE( int readsectors, (int _off, int _seg, off_t _adr, int _ct));
  119 _PROTOTYPE( void reboot, (void));
  120 _PROTOTYPE( void relocate, (void));
  121 _PROTOTYPE( int writesectors, (int _off, int _seg, off_t _adr, int _ct));
  122 #endif
  123 

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