wok annotate linld/stuff/src/COMMON.H @ rev 24019

syslinux: fix build
author Pascal Bellard <pascal.bellard@slitaz.org>
date Sun Feb 28 16:32:57 2021 +0000 (2021-02-28)
parents bc4b94310a29
children 217c02cbbe8d
rev   line source
pascal@24019 1 //#define WITH_XMM_ALLOC add himem.sys driver
pascal@24019 2 //#define LARGE_ZIMAGE may load system in high memory temporarily
pascal@24019 3 //#define INT15_E820 add int15/eax=E820 driver
pascal@24019 4 //#define BASIC_ISO9660 non rockridge support
pascal@24019 5 #define ROCKRIDGE iso 9660 posix name support
pascal@24019 6 #define ISO9660 iso= support
pascal@24019 7 #define QUICK_BOOT /q bypass shutdown hack, /v keeps v86
pascal@24019 8 #define ISOHOOK iso image dos boot helper
pascal@24019 9 #define MOVE_SETUP spare few Kb in setup location for zImage system
pascal@24019 10 #define NO386 8088 support
pascal@24019 11 #define CPU64 /64 support
pascal@24019 12 #define LONG_FILENAME look for Win95+ long file name too
pascal@24019 13 #define SHUTDOWN disable int19 hooked drivers
pascal@24019 14 #define VCPI v86 mode support with VCPI 4.0+
pascal@24019 15 #define LINUX001 linux 0.01 support
pascal@24019 16 #define ELKS elks support
pascal@24019 17 #define IPXE ipxe support
pascal@24019 18 /* End of the optional features */
pascal@24019 19
pascal@24019 20 #ifdef ISOHOOK
pascal@24019 21 #ifndef ISO9660
pascal@24019 22 #define ISO9660
pascal@24019 23 #endif
pascal@24019 24 #ifndef ROCKRIDGE
pascal@24019 25 #define ROCKRIDGE
pascal@24019 26 #endif
pascal@24019 27 #ifndef CPU64
pascal@24019 28 #define CPU64
pascal@24019 29 #endif
pascal@24019 30 #endif
pascal@24019 31
pascal@19515 32 // This file is distributed under GPL
pascal@19515 33 //
pascal@19515 34 // Common defs not belonging to CRTL
pascal@19515 35
pascal@24019 36 #if defined(__BORLANDC__) && !defined(NO386)
pascal@24019 37 #pragma option -3
pascal@24019 38 asm{
pascal@24019 39 .386p
pascal@24019 40 }
pascal@24019 41 #endif
pascal@24019 42
pascal@21757 43 #define NL "\n"
pascal@19515 44 #define VERSION_STR "0.97"
pascal@19515 45
pascal@19515 46 #if 0 // DEBUG
pascal@19515 47 #undef NDEBUG
pascal@19515 48 #define DEBUG
pascal@19515 49 #define static
pascal@19515 50 #else // not DEBUG
pascal@19515 51 #define NDEBUG
pascal@19515 52 #undef DEBUG
pascal@19515 53 #endif
pascal@19515 54
pascal@19515 55 typedef unsigned long u32; typedef signed long s32;
pascal@19515 56 typedef unsigned short u16; typedef signed short s16;
pascal@19515 57 typedef unsigned char u8; typedef signed char s8;
pascal@19515 58
pascal@19515 59 const u16 _16k = 16*1024u;
pascal@19515 60 const u16 _32k = 32*1024u;
pascal@19515 61 const u32 _64k = 64*1024ul;
pascal@19515 62 const u32 _1m = 1024ul*1024ul;
pascal@19580 63 const u32 _32m = 32*1024ul*1024ul;
pascal@19580 64 const u32 _64m = 64*1024ul*1024ul;
pascal@19515 65
pascal@19515 66 const PAGE_BITS = 12;
pascal@19515 67 const PAGE_SIZE = 1<<PAGE_BITS;
pascal@19515 68 const PAGE_MASK = PAGE_SIZE-1;
pascal@19515 69
pascal@19515 70 // WARNING!
pascal@19515 71 // BC 3.1 bug: seg() will generate incorrect code if inlined!
pascal@19515 72 // replaced by _dirty_ hack for now
pascal@19515 73 // u16 seg(const void far* p) { return FP_SEG(p); }
pascal@19515 74 inline u16 seg(const void far*) { return _DS; }
pascal@19515 75
pascal@19515 76 inline u16 ofs(const void* p) { return FP_OFF(p); }
pascal@19515 77
pascal@19515 78 extern struct image_himem {
pascal@19515 79 int fd;
pascal@19515 80 u32 fallback;
pascal@19515 81 u32 size;
pascal@19515 82 u32 remaining;
pascal@19515 83 u32 buf;
pascal@19515 84 u32 *bufv;
pascal@19515 85 u32 chunk_size;
pascal@19515 86 u16 state;
pascal@19538 87 u16 fd2close;
pascal@19899 88 } imgs[2];
pascal@19899 89 #define pm (imgs[0])
pascal@19899 90 #define initrd (imgs[1])
pascal@20538 91 #define pm2initrd(p) (p+1)
pascal@19515 92
pascal@22288 93 extern u8 pm_low;
pascal@23996 94
pascal@21758 95 extern u32 far *initrd_desc;
pascal@23996 96 #define cmdline (cmdstr[0])
pascal@23996 97 #define kernel_name (cmdstr[1])
pascal@23996 98 #define initrd_name (cmdstr[2])
pascal@23996 99 #define isofile (cmdstr[3])
pascal@23996 100 extern const char* cmdstr[4];
pascal@23996 101
pascal@23996 102 #define root_dev (cmdnum[0])
pascal@23996 103 #define vid_mode (cmdnum[1]) // -3 = ask, -2 = Extended VGA, -1 = Normal VGA, n = as "n" was pressed
pascal@23996 104 #define topmem (cmdnum[2])
pascal@23996 105 #define base_himem (cmdnum[3])
pascal@23999 106 #define skip_alloc (* (char *) &cmdnum[4])
pascal@24013 107 #ifdef QUICK_BOOT
pascal@24013 108 extern u32 cmdnum[7];
pascal@24013 109 #else
pascal@23999 110 extern u32 cmdnum[5];
pascal@24013 111 #endif
pascal@19580 112
pascal@24013 113 extern _fastcall void memcpy_image_kernel();
pascal@24013 114 extern _fastcall void memcpy_image_initrd();
pascal@20538 115 extern _fastcall void storepage(u32 *dst);
pascal@20538 116 extern _fastcall void reset_bufv(unsigned long *p);
pascal@19571 117 extern "C" unsigned long* prev_bufv();
pascal@19571 118 extern "C" unsigned long* next_bufv();
pascal@19571 119 #define next(p) p = next_bufv()
pascal@19571 120 #define prev(p) p = prev_bufv()
pascal@19515 121 extern char vcpi;
pascal@22170 122 extern char version_string[];
pascal@19515 123 // External asm helpers
pascal@23992 124 #ifdef WITH_XMM_ALLOC
pascal@20538 125 extern _fastcall void xmm_alloc(struct image_himem *m);
pascal@23992 126 #endif
pascal@19515 127 extern "C" u32 memtop();
pascal@19515 128 extern "C" void enable_a20_or_die();
pascal@24013 129 extern "C" void far vm2rm();
pascal@19515 130 extern "C" void hook_int15_88();
pascal@19515 131
pascal@19515 132 // C++ helpers
pascal@19515 133 #ifdef DEBUG
pascal@19515 134 extern "C" void hang();
pascal@19515 135 #endif
pascal@19515 136
pascal@19515 137 void load_image(struct image_himem *m);
pascal@21649 138 extern _fastcall void open_image(struct image_himem *m, const char *name);
pascal@20538 139 extern _fastcall int read_image(struct image_himem *m);
pascal@22170 140 void load_kernel();
pascal@19515 141 void load_initrd();
pascal@19903 142 extern "C" void boot_kernel();