| 1 | /* Generate parameters for an a.out system. |
| 2 | Copyright 1990-2013 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of BFD, the Binary File Descriptor library. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 3 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 19 | MA 02110-1301, USA. */ |
| 20 | |
| 21 | #include "/usr/include/a.out.h" |
| 22 | #include <stdio.h> |
| 23 | |
| 24 | #ifndef _ |
| 25 | #define _(X) X |
| 26 | #endif |
| 27 | |
| 28 | int |
| 29 | main (int argc, char** argv) |
| 30 | { |
| 31 | struct exec my_exec; |
| 32 | int page_size; |
| 33 | char * target; |
| 34 | char * arch = "unknown"; |
| 35 | FILE * file; |
| 36 | |
| 37 | target = argv[1]; |
| 38 | if (target == NULL) |
| 39 | { |
| 40 | fprintf (stderr, "Usage: gen-aout target_name\n"); |
| 41 | exit (1); |
| 42 | } |
| 43 | |
| 44 | file = fopen ("gen-aout", "r"); |
| 45 | if (file == NULL) |
| 46 | { |
| 47 | fprintf (stderr, "Cannot open gen-aout!\n"); |
| 48 | return -1; |
| 49 | } |
| 50 | |
| 51 | if (fread (&my_exec, sizeof (struct exec), 1, file) != 1) |
| 52 | { |
| 53 | fprintf(stderr, "Cannot read gen-aout!\n"); |
| 54 | return -1; |
| 55 | } |
| 56 | |
| 57 | fclose (file); |
| 58 | |
| 59 | #ifdef N_TXTOFF |
| 60 | page_size = N_TXTOFF(my_exec); |
| 61 | if (page_size == 0) |
| 62 | printf ("#define N_HEADER_IN_TEXT(x) 1\n"); |
| 63 | else |
| 64 | printf ("#define N_HEADER_IN_TEXT(x) 0\n"); |
| 65 | #endif |
| 66 | |
| 67 | printf("#define BYTES_IN_WORD %d\n", sizeof (int)); |
| 68 | if (my_exec.a_entry == 0) |
| 69 | { |
| 70 | printf ("#define ENTRY_CAN_BE_ZERO\n"); |
| 71 | printf ("#define N_SHARED_LIB(x) 0 /* Avoids warning */\n"); |
| 72 | } |
| 73 | else |
| 74 | { |
| 75 | printf ("/*#define ENTRY_CAN_BE_ZERO*/\n"); |
| 76 | printf ("/*#define N_SHARED_LIB(x) 0*/\n"); |
| 77 | } |
| 78 | |
| 79 | printf ("#define TEXT_START_ADDR %d\n", my_exec.a_entry); |
| 80 | |
| 81 | #ifdef PAGSIZ |
| 82 | if (page_size == 0) |
| 83 | page_size = PAGSIZ; |
| 84 | #endif |
| 85 | |
| 86 | if (page_size != 0) |
| 87 | printf ("#define TARGET_PAGE_SIZE %d\n", page_size); |
| 88 | else |
| 89 | printf ("/* #define TARGET_PAGE_SIZE ??? */\n"); |
| 90 | |
| 91 | printf ("#define SEGMENT_SIZE TARGET_PAGE_SIZE\n"); |
| 92 | |
| 93 | #ifdef vax |
| 94 | arch = "vax"; |
| 95 | #endif |
| 96 | #ifdef m68k |
| 97 | arch = "m68k"; |
| 98 | #endif |
| 99 | if (arch[0] == '1') |
| 100 | { |
| 101 | fprintf (stderr, _("warning: preprocessor substituted architecture name inside string;")); |
| 102 | fprintf (stderr, _(" fix DEFAULT_ARCH in the output file yourself\n")); |
| 103 | arch = "unknown"; |
| 104 | } |
| 105 | printf ("#define DEFAULT_ARCH bfd_arch_%s\n\n", arch); |
| 106 | |
| 107 | printf ("/* Do not \"beautify\" the CONCAT* macro args. Traditional C will not"); |
| 108 | printf (" remove whitespace added here, and thus will fail to concatenate"); |
| 109 | printf (" the tokens. */"); |
| 110 | printf ("\n#define MY(OP) CONCAT2 (%s_,OP)\n\n", target); |
| 111 | printf ("#define TARGETNAME \"a.out-%s\"\n\n", target); |
| 112 | |
| 113 | printf ("#include \"sysdep.h\"\n"); |
| 114 | printf ("#include \"bfd.h\"\n"); |
| 115 | printf ("#include \"libbfd.h\"\n"); |
| 116 | printf ("#include \"libaout.h\"\n"); |
| 117 | printf ("\n#include \"aout-target.h\"\n"); |
| 118 | |
| 119 | return 0; |
| 120 | } |