1 | /* Generate parameters for an a.out system. |
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2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995 |
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3 | Free Software Foundation, Inc. |
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4 | |
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5 | This file is part of BFD, the Binary File Descriptor library. |
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6 | |
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7 | This program is free software; you can redistribute it and/or modify |
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8 | it under the terms of the GNU General Public License as published by |
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9 | the Free Software Foundation; either version 2 of the License, or |
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10 | (at your option) any later version. |
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11 | |
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12 | This program is distributed in the hope that it will be useful, |
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13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 | GNU General Public License for more details. |
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16 | |
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17 | You should have received a copy of the GNU General Public License |
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18 | along with this program; if not, write to the Free Software |
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19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
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20 | |
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21 | #include "/usr/include/a.out.h" |
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22 | #include <stdio.h> |
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23 | |
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24 | int |
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25 | main (argc, argv) |
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26 | int argc; char** argv; |
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27 | { |
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28 | struct exec my_exec; |
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29 | int page_size; |
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30 | char *target = "unknown", *arch = "unknown"; |
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31 | FILE *file = fopen("gen-aout", "r"); |
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32 | |
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33 | if (file == NULL) { |
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34 | fprintf(stderr, "Cannot open gen-aout!\n"); |
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35 | return -1; |
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36 | } |
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37 | if (fread(&my_exec, sizeof(struct exec), 1, file) != 1) { |
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38 | fprintf(stderr, "Cannot read gen-aout!\n"); |
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39 | return -1; |
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40 | } |
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41 | |
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42 | target = argv[1]; |
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43 | if (target == NULL) { |
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44 | fprintf(stderr, "Usage: gen-aout target_name\n"); |
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45 | exit (1); |
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46 | } |
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47 | |
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48 | #ifdef N_TXTOFF |
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49 | page_size = N_TXTOFF(my_exec); |
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50 | if (page_size == 0) |
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51 | printf("#define N_HEADER_IN_TEXT(x) 1\n"); |
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52 | else |
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53 | printf("#define N_HEADER_IN_TEXT(x) 0\n"); |
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54 | #endif |
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55 | |
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56 | printf("#define BYTES_IN_WORD %d\n", sizeof (int)); |
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57 | if (my_exec.a_entry == 0) { |
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58 | printf("#define ENTRY_CAN_BE_ZERO\n"); |
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59 | printf("#define N_SHARED_LIB(x) 0 /* Avoids warning */\n"); |
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60 | } |
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61 | else { |
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62 | printf("/*#define ENTRY_CAN_BE_ZERO*/\n"); |
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63 | printf("/*#define N_SHARED_LIB(x) 0*/\n"); |
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64 | } |
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65 | |
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66 | printf("#define TEXT_START_ADDR %d\n", my_exec.a_entry); |
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67 | |
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68 | #ifdef PAGSIZ |
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69 | if (page_size == 0) |
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70 | page_size = PAGSIZ; |
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71 | #endif |
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72 | if (page_size != 0) |
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73 | printf("#define TARGET_PAGE_SIZE %d\n", page_size); |
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74 | else |
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75 | printf("/* #define TARGET_PAGE_SIZE ??? */\n"); |
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76 | printf("#define SEGMENT_SIZE TARGET_PAGE_SIZE\n"); |
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77 | |
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78 | #ifdef vax |
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79 | arch = "vax"; |
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80 | #endif |
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81 | #ifdef m68k |
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82 | arch = "m68k"; |
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83 | #endif |
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84 | if (arch[0] == '1') |
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85 | { |
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86 | fprintf (stderr, _("warning: preprocessor substituted architecture name inside string;")); |
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87 | fprintf (stderr, _(" fix DEFAULT_ARCH in the output file yourself\n")); |
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88 | arch = "unknown"; |
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89 | } |
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90 | printf("#define DEFAULT_ARCH bfd_arch_%s\n", arch); |
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91 | |
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92 | printf("\n#define MY(OP) CAT(%s_,OP)\n", target); |
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93 | printf("#define TARGETNAME \"a.out-%s\"\n\n", target); |
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94 | |
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95 | printf("#include \"bfd.h\"\n"); |
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96 | printf("#include \"sysdep.h\"\n"); |
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97 | printf("#include \"libbfd.h\"\n"); |
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98 | printf("#include \"libaout.h\"\n"); |
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99 | printf("\n#include \"aout-target.h\"\n"); |
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100 | |
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101 | return 0; |
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102 | } |
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