wok-6.x annotate linld/stuff/src/LINLD.CPP @ rev 24067

linld: add cpu detection
author Pascal Bellard <pascal.bellard@slitaz.org>
date Mon Jul 05 15:05:16 2021 +0000 (2021-07-05)
parents 324b3fa82b76
children c11594098e34
rev   line source
pascal@19515 1 // This file is distributed under GPL
pascal@19515 2 //
pascal@19515 3 // LINLD main() lives here
pascal@19515 4
pascal@19515 5 #include "crtl.h"
pascal@19515 6 #include "common.h"
pascal@23996 7 #include "iso9660.h"
pascal@19515 8
pascal@23996 9 extern char bzimagestr[];
pascal@23996 10 const char* cmdstr[4] = {"auto",bzimagestr,NULL,NULL};
pascal@19515 11
pascal@19515 12 inline void syntax() {
pascal@19515 13 die("Syntax:" NL
pascal@24019 14 "LINLD [image=file] [initrd=files] [vga=mode] [root=num] [mem=max] [cl=cmdline] "
pascal@24019 15 #ifdef ISO9660
pascal@24019 16 "[iso=file] "
pascal@24019 17 #endif
pascal@24019 18 "..." NL
pascal@19515 19 "vga mode: ask,extended,normal or dec/oct/hex number" NL
pascal@24067 20 #ifdef CPUTYPE
pascal@24067 21 "-m mincpu family*256+model" NL
pascal@24051 22 #endif
pascal@24019 23 #ifdef CPU64
pascal@21984 24 "-64 for cpu64 only" NL
pascal@24019 25 #endif
pascal@19515 26 "Defaults:" NL
pascal@19515 27 "\timage=bzImage" NL
pascal@19515 28 "\tinitrd,vga,root=(void)" NL
pascal@19515 29 "\tmem=256m" NL
pascal@19515 30 "\tcl=auto" NL
pascal@19580 31 "\t-b 1088k" NL
pascal@19515 32 "Use quotes: \"cl=...\" if you need spaces in cmdline" NL
pascal@19538 33 "Use cl=@filename to get it from a file"
pascal@19515 34 #if 1
pascal@19515 35 NL NL "Examples:" NL
pascal@23992 36 "\tLINLD "
pascal@23992 37 "-b 64m "
pascal@24067 38 #ifdef CPUTYPE
pascal@24067 39 "-m 0x600 "
pascal@24067 40 #endif
pascal@21569 41 "initrd=rootfs4.gz,rootfs3.gz,rootfs2.gz,rootfs1.gz "
pascal@23890 42 "\"cl=root=/dev/null video=-32\""
pascal@24015 43 NL "\tLINLD memtest"
pascal@19515 44 #endif
pascal@19515 45 );
pascal@19515 46 }
pascal@19515 47
pascal@19515 48 int main(int argc, char *argv[]) {
pascal@19571 49
pascal@19571 50 (void) argc;
pascal@19571 51
pascal@21569 52 ((u16*) &base_himem)[1] |= (_1m+_64k)>>16; // base_himem = _1m+_64k
pascal@19515 53 puts("LINLD v" VERSION_STR "+");
pascal@19515 54
pascal@19538 55 // Parse command line
pascal@23994 56 if (!*++argv) syntax();
pascal@23992 57 const char **clp = &cmdline;
pascal@23994 58 do {
pascal@24019 59 #ifdef CPU64
pascal@21984 60 if ((*(u16 *)*argv|2) == 0x362F) { // -64 /64
pascal@24051 61 if (cpuhaslm() == 0) exit();
pascal@21984 62 }
pascal@24019 63 #endif
pascal@24019 64 #ifdef ISO9660
pascal@23996 65 if (argstr(*argv,"cl|image|initrd|iso",clp) == (int) clp) continue;
pascal@24019 66 #else
pascal@24019 67 if (argstr(*argv,"cl|image|initrd",clp) == (int) clp) continue;
pascal@24019 68 #endif
pascal@24067 69 if (argnum(*argv,"root|vga|mem|-b|"
pascal@24067 70 #ifdef CPUTYPE
pascal@24067 71 "-m|"
pascal@24067 72 #endif
pascal@24067 73 "-f~"
pascal@24013 74 #ifdef QUICK_BOOT
pascal@24067 75 "-q~-v~"
pascal@24013 76 #endif
pascal@24067 77 ,&root_dev) >= (int) &base_himem) continue;
pascal@23992 78 if (fileexist(*argv) != -1) {
pascal@21984 79 kernel_name=*argv;
pascal@23992 80 continue;
pascal@23992 81 }
pascal@24022 82 *clp = (const char *) heap_top +1;
pascal@24022 83 strcatb((const char *) heap_top,*argv);
pascal@23994 84 } while (*++argv);
pascal@24067 85 #ifdef CPUTYPE
pascal@24067 86 if (mincpu > cputype) exit();
pascal@24067 87 #endif
pascal@23992 88 puts(*clp);
pascal@24022 89 asm{
pascal@24022 90 xchg ax,bx
pascal@24022 91 mov bx,offset _heap_top
pascal@24022 92 cmp ax,[bx]
pascal@24022 93 jc skip
pascal@24022 94 mov [bx],ax
pascal@24022 95 }
pascal@24022 96 skip:
pascal@24019 97 #ifdef ISO9660
pascal@23996 98 if (isofile) setiso(isofile);
pascal@24019 99 #endif
pascal@23992 100 set_cmdline(*clp);
pascal@23992 101 load_kernel();
pascal@23992 102 load_initrd();
pascal@24022 103 //boot_kernel();
pascal@19515 104
pascal@19515 105 // Let compiler be happy
pascal@23996 106 return _AX;
pascal@19515 107 }