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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@19515
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17
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pascal@19515
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18 inline void syntax() {
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pascal@19515
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19 die("Syntax:" NL
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pascal@19515
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20 "LINLD [image=file] [initrd=files] [vga=mode] [root=num] [mem=max] [cl=cmdline]" NL
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pascal@19515
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21 "vga mode: ask,extended,normal or dec/oct/hex number" NL
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pascal@19538
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22 "-f force" NL
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pascal@19515
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23 "Defaults:" NL
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pascal@19515
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24 "\timage=bzImage" NL
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pascal@19515
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25 "\tinitrd,vga,root=(void)" NL
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pascal@19515
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26 "\tmem=256m" NL
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pascal@19515
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27 "\tcl=auto" NL
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pascal@20751
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28 #ifdef USE_ARGSTR
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pascal@20751
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29 "\t-b=1088k" NL
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pascal@20751
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30 #else
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pascal@19580
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31 "\t-b 1088k" NL
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pascal@20751
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32 #endif
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pascal@19515
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33 "Use quotes: \"cl=...\" if you need spaces in cmdline" NL
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pascal@19538
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34 "Use cl=@filename to get it from a file"
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pascal@19515
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35 #if 1
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pascal@19515
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36 NL NL "Examples:" NL
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pascal@20751
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37 #ifdef USE_ARGSTR
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pascal@20751
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38 "\tLINLD -f -b=64m initrd=rootfs4.gz,rootfs3.gz,rootfs2.gz,rootfs1.gz \"cl=rw root=/dev/null video=-32\""
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pascal@20751
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39 #else
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pascal@20451
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40 "\tLINLD -f -b 64m initrd=rootfs4.gz,rootfs3.gz,rootfs2.gz,rootfs1.gz \"cl=rw root=/dev/null video=-32\""
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pascal@20751
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41 #endif
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pascal@20451
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42 NL NL "\tLINLD image=memtest"
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pascal@19515
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43 #endif
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pascal@19515
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44 );
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pascal@19515
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45 }
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pascal@19515
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46
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pascal@20453
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47 static char buf_cmdline[128];
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pascal@19515
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48 int main(int argc, char *argv[]) {
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pascal@19571
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49
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pascal@19571
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50 (void) argc;
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pascal@19571
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51
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pascal@19515
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52 // Believe it or not - this enables A20
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pascal@19515
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53 // on my box! Must be DOS in HMA... -vda
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pascal@19515
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54 puts("LINLD v" VERSION_STR "+");
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pascal@19515
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55
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pascal@19538
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56 // Parse command line
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pascal@20751
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57 #ifdef USE_ARGSTR
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pascal@20751
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58 if (argv[1]) {for (;;) {
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pascal@20751
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59 const char **clp = &cmdline;
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pascal@20751
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60 next:
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pascal@20751
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61 argv++;
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pascal@20751
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62 if (!*argv) {
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pascal@20751
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63 puts(*clp);
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pascal@20751
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64 set_cmdline(*clp);
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pascal@20751
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65 puts(load_kernel());
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pascal@20751
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66 load_initrd();
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pascal@20751
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67 boot_kernel();
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pascal@20751
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68 }
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pascal@20751
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69 if ((*(u16 *)*argv|0x2002) == 0x662F) { // -F /f
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pascal@20751
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70 skip_alloc++;
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pascal@20751
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71 goto next;
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pascal@20751
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72 }
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pascal@20751
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73 if (argstr(*argv,"cl|image|initrd",clp) == 0);
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pascal@20751
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74 else if (fileexist(*argv) >= 0)
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pascal@20751
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75 kernel_name=*argv;
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pascal@20751
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76 else if (*argv) {
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pascal@20751
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77 argnum(*argv,"root|vga|mem|-b",&root_dev);
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pascal@20751
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78 *clp = (const char *) buf_cmdline + 1;
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pascal@20751
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79 strcatb((const char *) buf_cmdline,*argv);
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pascal@20751
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80 }
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pascal@20751
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81 else
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pascal@20751
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82 break;
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pascal@20751
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83 }
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pascal@20751
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84 }
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pascal@20751
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85 #else
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pascal@19571
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86 if (argv[1]) {for (char i=0;;) {
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pascal@19571
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87 char *s;
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pascal@19580
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88 next:
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pascal@19571
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89 argv++;
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pascal@19571
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90 s=*argv;
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pascal@19538
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91 i++;
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pascal@19538
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92 if (!s) {
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pascal@19538
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93 puts(load_kernel());
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pascal@19538
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94 load_initrd();
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pascal@19538
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95 boot_kernel();
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pascal@19538
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96 }
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pascal@19515
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97 if(strhead(s,"image=") == 0) {
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pascal@19538
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98 s+=6;
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pascal@19825
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99 set_kernel_name:
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pascal@19538
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100 kernel_name=s;
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pascal@19515
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101 }
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pascal@19515
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102 else if(strhead(s,"initrd=") == 0) {
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pascal@19538
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103 s+=7;
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pascal@19538
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104 initrd_name=s;
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pascal@19538
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105 }
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pascal@19538
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106 else if(strhead(s,"vga=") == 0) {
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pascal@19538
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107 s+=4;
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pascal@19538
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108 vid_mode = strtol(s); // support normal, extended & ask
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pascal@19515
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109 }
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pascal@19580
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110 else switch (*(u16 *)s|0x2002) {
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pascal@19580
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111 case 0x662F: // -F /f
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pascal@19580
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112 skip_alloc++;
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pascal@19580
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113 goto next;
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pascal@19580
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114 case 0x622F: // -B /b
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pascal@19580
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115 argv++;
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pascal@19580
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116 base_himem = strtol(*argv);
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pascal@19580
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117 goto next;
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pascal@19580
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118 default:
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pascal@19580
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119 if(strhead(s,"cl=") == 0) {
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pascal@19538
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120 cmdline=s+=3;
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pascal@19538
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121 if (*s == '@') {
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pascal@19538
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122 static struct image_himem image;
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pascal@19538
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123 char c;
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pascal@19538
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124
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pascal@19538
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125 s++;
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pascal@19538
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126 image.errmsg = "Error in cl=@file";
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pascal@19538
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127 open_image(s, &image);
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pascal@19538
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128 cmdline=s=(char *)malloc_or_die(image.size);
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pascal@19538
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129 s+=image.size;
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pascal@19538
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130 read(image.fd, (void *)cmdline, image.size);
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pascal@19538
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131 // Strip any trailing cr/lf
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pascal@19538
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132 c='\0';
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pascal@19538
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133 do {
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pascal@19538
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134 // Replace all other cr/lfs with spaces
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pascal@19538
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135 s--;
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pascal@19538
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136 if(*s>=' ') c=' ';
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pascal@19538
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137 else *s = c;
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pascal@19538
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138 } while (s>cmdline);
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pascal@19515
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139 puts("Kernel command line:");
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pascal@19515
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140 puts(cmdline);
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pascal@19515
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141 }
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pascal@19515
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142 }
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pascal@19515
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143 else if(strhead(s,"root=") == 0) {
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pascal@19538
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144 s+=5;
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pascal@19538
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145 root_dev = strtol(s);
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pascal@19538
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146 goto addincmdline;
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pascal@19515
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147 }
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pascal@19515
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148 else if(strhead(s,"mem=") == 0) {
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pascal@19538
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149 s+=4;
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pascal@19538
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150 topmem = strtol(s);
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pascal@19538
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151 goto addincmdline;
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pascal@19515
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152 }
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pascal@20453
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153 else if(cmdline == (const char *) buf_cmdline + 1) {
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pascal@19538
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154 addincmdline:
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pascal@20453
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155 strcatb(buf_cmdline,*argv);
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pascal@19515
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156 }
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pascal@20632
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157 else if(i == 1 && fileexist(s) != -1) {
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pascal@20453
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158 cmdline = (const char *) buf_cmdline + 1;
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pascal@19825
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159 goto set_kernel_name;
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pascal@19538
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160 }
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pascal@19538
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161 else
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pascal@19571
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162 break;
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pascal@19580
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163 }
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pascal@19515
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164 }}
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pascal@20751
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165 #endif
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pascal@19571
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166 syntax();
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pascal@19515
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167
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pascal@19515
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168 // Let compiler be happy
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pascal@19571
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169 return _AX;
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pascal@19515
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170 }
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