1 /* Generate parameters for an a.out system. 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 2001, 2002 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 (argc, argv) 30 int argc; char** argv; 31 { 32 struct exec my_exec; 33 int page_size; 34 char *target = "unknown", *arch = "unknown"; 35 FILE *file = fopen("gen-aout", "r"); 36 37 if (file == NULL) { 38 fprintf(stderr, "Cannot open gen-aout!\n"); 39 return -1; 40 } 41 if (fread(&my_exec, sizeof(struct exec), 1, file) != 1) { 42 fprintf(stderr, "Cannot read gen-aout!\n"); 43 return -1; 44 } 45 46 target = argv[1]; 47 if (target == NULL) { 48 fprintf(stderr, "Usage: gen-aout target_name\n"); 49 exit (1); 50 } 51 52 #ifdef N_TXTOFF 53 page_size = N_TXTOFF(my_exec); 54 if (page_size == 0) 55 printf("#define N_HEADER_IN_TEXT(x) 1\n"); 56 else 57 printf("#define N_HEADER_IN_TEXT(x) 0\n"); 58 #endif 59 60 printf("#define BYTES_IN_WORD %d\n", sizeof (int)); 61 if (my_exec.a_entry == 0) { 62 printf("#define ENTRY_CAN_BE_ZERO\n"); 63 printf("#define N_SHARED_LIB(x) 0 /* Avoids warning */\n"); 64 } 65 else { 66 printf("/*#define ENTRY_CAN_BE_ZERO*/\n"); 67 printf("/*#define N_SHARED_LIB(x) 0*/\n"); 68 } 69 70 printf("#define TEXT_START_ADDR %d\n", my_exec.a_entry); 71 72 #ifdef PAGSIZ 73 if (page_size == 0) 74 page_size = PAGSIZ; 75 #endif 76 if (page_size != 0) 77 printf("#define TARGET_PAGE_SIZE %d\n", page_size); 78 else 79 printf("/* #define TARGET_PAGE_SIZE ??? */\n"); 80 printf("#define SEGMENT_SIZE TARGET_PAGE_SIZE\n"); 81 82 #ifdef vax 83 arch = "vax"; 84 #endif 85 #ifdef m68k 86 arch = "m68k"; 87 #endif 88 if (arch[0] == '1') 89 { 90 fprintf (stderr, _("warning: preprocessor substituted architecture name inside string;")); 91 fprintf (stderr, _(" fix DEFAULT_ARCH in the output file yourself\n")); 92 arch = "unknown"; 93 } 94 printf("#define DEFAULT_ARCH bfd_arch_%s\n\n", arch); 95 96 printf("/* Do not \"beautify\" the CONCAT* macro args. Traditional C will not"); 97 printf(" remove whitespace added here, and thus will fail to concatenate"); 98 printf(" the tokens. */"); 99 printf("\n#define MY(OP) CONCAT2 (%s_,OP)\n\n", target); 100 printf("#define TARGETNAME \"a.out-%s\"\n\n", target); 101 102 printf("#include \"bfd.h\"\n"); 103 printf("#include \"sysdep.h\"\n"); 104 printf("#include \"libbfd.h\"\n"); 105 printf("#include \"libaout.h\"\n"); 106 printf("\n#include \"aout-target.h\"\n"); 107 108 return 0; 109 } 110