| 1 | /* Generate parameters for an a.out system. |
| 2 | Copyright (C) 1990-1991 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 2 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | #include "/usr/include/a.out.h" |
| 21 | #include <stdio.h> |
| 22 | |
| 23 | /* Stuffed value of "ABCD" in a long, followed by a 0. */ |
| 24 | long int str[2] = { 0x41424344, 0x0 }; |
| 25 | |
| 26 | main () |
| 27 | { |
| 28 | struct exec my_exec; |
| 29 | int page_size; |
| 30 | FILE *file = fopen("gen-aout", "r"); |
| 31 | if (file == NULL) { |
| 32 | fprintf(stderr, "Cannot open gen-aout!\n"); |
| 33 | return -1; |
| 34 | } |
| 35 | if (fread(&my_exec, sizeof(struct exec), 1, file) != 1) { |
| 36 | fprintf(stderr, "Cannot read gen-aout!\n"); |
| 37 | return -1; |
| 38 | } |
| 39 | |
| 40 | if (strcmp ((char *)&str[0], "ABCD") == 0) |
| 41 | printf("#define TARGET_IS_BIG_ENDIAN_P\n"); |
| 42 | else |
| 43 | printf("#define TARGET_IS_LITTLE_ENDIAN_P\n"); |
| 44 | |
| 45 | #ifdef N_TXTOFF |
| 46 | page_size = N_TXTOFF(my_exec); |
| 47 | if (page_size == 0) |
| 48 | printf("#define N_HEADER_IN_TEXT(x) 1\n"); |
| 49 | else |
| 50 | printf("#define N_HEADER_IN_TEXT(x) 0\n"); |
| 51 | #endif |
| 52 | |
| 53 | printf("#define BYTES_IN_WORD 4\n"); |
| 54 | printf("#define ARCH 32\n"); |
| 55 | if (my_exec.a_entry == 0) |
| 56 | printf("#define ENTRY_CAN_BE_ZERO\n"); |
| 57 | printf("#define TEXT_START_ADDR %d\n", my_exec.a_entry); |
| 58 | |
| 59 | #ifdef PAGSIZ |
| 60 | if (page_size == 0) |
| 61 | page_size = PAGSIZ; |
| 62 | #endif |
| 63 | if (page_size != 0) |
| 64 | printf("#define PAGE_SIZE %d\n", page_size); |
| 65 | |
| 66 | return 0; |
| 67 | } |