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pascal@19515
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1 // This file is distributed under GPL
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pascal@19515
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2 //
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pascal@19515
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3 // LINLD main() lives here
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pascal@19515
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4
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pascal@19515
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5 #include "crtl.h"
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pascal@19515
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6 #include "common.h"
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pascal@19515
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7
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pascal@19515
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8 const char* kernel_name = "bzImage";
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pascal@19515
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9 const char* initrd_name;
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pascal@19515
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10 const char* cmdline = "auto";
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pascal@20528
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11 u32 root_dev;
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pascal@20528
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12 u32 vid_mode; // -3 = ask
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pascal@20528
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13 // -2 = Extended VGA
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pascal@20528
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14 // -1 = Normal VGA
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pascal@20528
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15 // n = as "n" was pressed
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pascal@20528
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16 u32 topmem;
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pascal@21569
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17 u32 base_himem;
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pascal@19515
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18
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pascal@19515
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19 inline void syntax() {
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pascal@19515
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20 die("Syntax:" NL
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pascal@19515
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21 "LINLD [image=file] [initrd=files] [vga=mode] [root=num] [mem=max] [cl=cmdline]" NL
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pascal@19515
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22 "vga mode: ask,extended,normal or dec/oct/hex number" NL
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pascal@19538
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23 "-f force" NL
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pascal@19515
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24 "Defaults:" NL
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pascal@19515
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25 "\timage=bzImage" NL
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pascal@19515
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26 "\tinitrd,vga,root=(void)" NL
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pascal@19515
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27 "\tmem=256m" NL
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pascal@19515
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28 "\tcl=auto" NL
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pascal@19580
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29 "\t-b 1088k" NL
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pascal@19515
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30 "Use quotes: \"cl=...\" if you need spaces in cmdline" NL
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pascal@19538
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31 "Use cl=@filename to get it from a file"
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pascal@19515
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32 #if 1
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pascal@19515
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33 NL NL "Examples:" NL
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pascal@21569
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34 "\tLINLD -f -b 64m "
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pascal@21569
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35 "initrd=rootfs4.gz,rootfs3.gz,rootfs2.gz,rootfs1.gz "
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pascal@21569
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36 "\"cl=rw root=/dev/null video=-32\""
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pascal@20451
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37 NL NL "\tLINLD image=memtest"
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pascal@19515
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38 #endif
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pascal@19515
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39 );
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pascal@19515
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40 }
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pascal@19515
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41
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pascal@20453
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42 static char buf_cmdline[128];
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pascal@19515
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43 int main(int argc, char *argv[]) {
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pascal@19571
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44
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pascal@19571
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45 (void) argc;
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pascal@19571
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46
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pascal@21569
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47 ((u16*) &base_himem)[1] |= (_1m+_64k)>>16; // base_himem = _1m+_64k
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pascal@19515
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48 puts("LINLD v" VERSION_STR "+");
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pascal@19515
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49
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pascal@19538
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50 // Parse command line
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pascal@20751
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51 #ifdef USE_ARGSTR
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pascal@21576
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52 if (!argv[1]) syntax();
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pascal@21576
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53 {for (;;) {
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pascal@20751
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54 const char **clp = &cmdline;
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pascal@20751
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55 next:
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pascal@20751
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56 argv++;
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pascal@20751
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57 if (!*argv) {
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pascal@20751
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58 puts(*clp);
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pascal@20751
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59 set_cmdline(*clp);
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pascal@20751
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60 puts(load_kernel());
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pascal@20751
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61 load_initrd();
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pascal@20751
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62 boot_kernel();
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pascal@20751
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63 }
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pascal@20751
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64 if ((*(u16 *)*argv|0x2002) == 0x662F) { // -F /f
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pascal@20751
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65 skip_alloc++;
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pascal@20751
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66 goto next;
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pascal@20751
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67 }
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pascal@21576
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68 if (argstr(*argv,"cl|image|initrd",clp) != -1);
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pascal@21576
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69 else if (fileexist(*argv) != -1)
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pascal@20751
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70 kernel_name=*argv;
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pascal@20751
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71 else if (*argv) {
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pascal@20751
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72 argnum(*argv,"root|vga|mem|-b",&root_dev);
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pascal@20751
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73 *clp = (const char *) buf_cmdline + 1;
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pascal@20751
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74 strcatb((const char *) buf_cmdline,*argv);
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pascal@20751
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75 }
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pascal@20751
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76 else
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pascal@20751
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77 break;
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pascal@20751
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78 }
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pascal@20751
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79 }
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pascal@20751
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80 #else
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pascal@21576
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81 if (!argv[1]) syntax();
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pascal@21576
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82 while (1) {
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pascal@19571
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83 char *s;
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pascal@19580
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84 next:
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pascal@19571
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85 argv++;
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pascal@19571
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86 s=*argv;
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pascal@19538
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87 if (!s) {
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pascal@19538
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88 puts(load_kernel());
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pascal@19538
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89 load_initrd();
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pascal@19538
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90 boot_kernel();
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pascal@19538
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91 }
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pascal@19515
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92 if(strhead(s,"image=") == 0) {
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pascal@19538
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93 s+=6;
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pascal@19825
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94 set_kernel_name:
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pascal@19538
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95 kernel_name=s;
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pascal@19515
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96 }
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pascal@19515
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97 else if(strhead(s,"initrd=") == 0) {
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pascal@21569
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98 initrd_name=s+7;
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pascal@19538
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99 }
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pascal@19538
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100 else if(strhead(s,"vga=") == 0) {
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pascal@21569
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101 *(u16*)&vid_mode = (u16)strtol(s+7); // support normal, extended & ask
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pascal@19515
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102 }
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pascal@19580
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103 else switch (*(u16 *)s|0x2002) {
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pascal@19580
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104 case 0x662F: // -F /f
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pascal@19580
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105 skip_alloc++;
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pascal@19580
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106 goto next;
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pascal@19580
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107 case 0x622F: // -B /b
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pascal@19580
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108 argv++;
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pascal@21569
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109 ((u16 *)&base_himem)[1] = (u16)(strtol(*argv)>>16);
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pascal@19580
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110 goto next;
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pascal@19580
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111 default:
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pascal@20793
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112 if(strhead(s,"cl=") == 0) {
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pascal@20793
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113 cmdline=s+=3;
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pascal@20793
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114 if (*s == '@') {
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pascal@20793
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115 static struct image_himem image;
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pascal@20793
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116 char c;
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pascal@19538
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117
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pascal@20793
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118 s++;
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pascal@20793
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119 image.errmsg = "Error in cl=@file";
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pascal@20793
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120 open_image(s, &image);
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pascal@21569
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121 s+=read(image.fd, (void *)cmdline=s=
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pascal@21569
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122 (char *)malloc_or_die(image.size), image.size);
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pascal@20793
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123 // Strip any trailing cr/lf
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pascal@20793
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124 c='\0';
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pascal@20793
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125 do {
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pascal@19538
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126 // Replace all other cr/lfs with spaces
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pascal@19538
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127 s--;
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pascal@19538
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128 if(*s>=' ') c=' ';
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pascal@19538
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129 else *s = c;
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pascal@20793
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130 } while (s>cmdline);
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pascal@20793
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131 puts("Kernel command line:");
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pascal@20793
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132 puts(cmdline);
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pascal@20793
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133 }
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pascal@20793
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134 }
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pascal@20793
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135 else if(strhead(s,"root=") == 0) {
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pascal@21569
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136 *(u16*)&root_dev = (u16)strtol(s+5);
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pascal@20793
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137 goto addincmdline;
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pascal@20793
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138 }
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pascal@20793
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139 else if(strhead(s,"mem=") == 0) {
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pascal@21569
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140 ((u16 *)&topmem)[1] = (u16)(strtol(s+4)>>16);
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pascal@20793
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141 goto addincmdline;
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pascal@20793
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142 }
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pascal@20793
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143 else {
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pascal@20793
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144 addincmdline:
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pascal@20793
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145 if(cmdline == (const char *) buf_cmdline + 1) {
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pascal@20793
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146 strcatb(buf_cmdline,*argv);
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pascal@20793
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147 }
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pascal@20793
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148 else {
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pascal@20793
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149 if(fileexist(s) != -1) goto set_kernel_name;
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pascal@20793
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150 cmdline = (const char *) buf_cmdline + 1;
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pascal@20793
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151 goto addincmdline;
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pascal@20793
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152 }
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pascal@20793
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153 }
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pascal@19580
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154 }
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pascal@20793
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155 }
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pascal@20751
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156 #endif
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pascal@19515
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157
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pascal@19515
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158 // Let compiler be happy
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pascal@19571
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159 return _AX;
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pascal@19515
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160 }
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