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-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
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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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