1/* Generate parameters for an a.out system. 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 2001, 2002, 2007 3 Free Software Foundation, Inc. 4 5 This file is part of BFD, the Binary File Descriptor library. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 20 MA 02110-1301, USA. */ 21 22#include "/usr/include/a.out.h" 23#include <stdio.h> 24 25#ifndef _ 26#define _(X) X 27#endif 28 29int 30main (argc, argv) 31 int argc; char** argv; 32{ 33 struct exec my_exec; 34 int page_size; 35 char *target = "unknown", *arch = "unknown"; 36 FILE *file = fopen("gen-aout", "r"); 37 38 if (file == NULL) { 39 fprintf(stderr, "Cannot open gen-aout!\n"); 40 return -1; 41 } 42 if (fread(&my_exec, sizeof(struct exec), 1, file) != 1) { 43 fprintf(stderr, "Cannot read gen-aout!\n"); 44 return -1; 45 } 46 47 target = argv[1]; 48 if (target == NULL) { 49 fprintf(stderr, "Usage: gen-aout target_name\n"); 50 exit (1); 51 } 52 53#ifdef N_TXTOFF 54 page_size = N_TXTOFF(my_exec); 55 if (page_size == 0) 56 printf("#define N_HEADER_IN_TEXT(x) 1\n"); 57 else 58 printf("#define N_HEADER_IN_TEXT(x) 0\n"); 59#endif 60 61 printf("#define BYTES_IN_WORD %d\n", sizeof (int)); 62 if (my_exec.a_entry == 0) { 63 printf("#define ENTRY_CAN_BE_ZERO\n"); 64 printf("#define N_SHARED_LIB(x) 0 /* Avoids warning */\n"); 65 } 66 else { 67 printf("/*#define ENTRY_CAN_BE_ZERO*/\n"); 68 printf("/*#define N_SHARED_LIB(x) 0*/\n"); 69 } 70 71 printf("#define TEXT_START_ADDR %d\n", my_exec.a_entry); 72 73#ifdef PAGSIZ 74 if (page_size == 0) 75 page_size = PAGSIZ; 76#endif 77 if (page_size != 0) 78 printf("#define TARGET_PAGE_SIZE %d\n", page_size); 79 else 80 printf("/* #define TARGET_PAGE_SIZE ??? */\n"); 81 printf("#define SEGMENT_SIZE TARGET_PAGE_SIZE\n"); 82 83#ifdef vax 84 arch = "vax"; 85#endif 86#ifdef m68k 87 arch = "m68k"; 88#endif 89 if (arch[0] == '1') 90 { 91 fprintf (stderr, _("warning: preprocessor substituted architecture name inside string;")); 92 fprintf (stderr, _(" fix DEFAULT_ARCH in the output file yourself\n")); 93 arch = "unknown"; 94 } 95 printf("#define DEFAULT_ARCH bfd_arch_%s\n\n", arch); 96 97 printf("/* Do not \"beautify\" the CONCAT* macro args. Traditional C will not"); 98 printf(" remove whitespace added here, and thus will fail to concatenate"); 99 printf(" the tokens. */"); 100 printf("\n#define MY(OP) CONCAT2 (%s_,OP)\n\n", target); 101 printf("#define TARGETNAME \"a.out-%s\"\n\n", target); 102 103 printf("#include \"sysdep.h\"\n"); 104 printf("#include \"bfd.h\"\n"); 105 printf("#include \"libbfd.h\"\n"); 106 printf("#include \"libaout.h\"\n"); 107 printf("\n#include \"aout-target.h\"\n"); 108 109 return 0; 110} 111