gen-aout.c revision 1.4 
1/* Generate parameters for an a.out system.
2   Copyright 1990, 1991, 1992, 1993, 1994, 1995
3   Free Software Foundation, Inc.
4
5This file is part of BFD, the Binary File Descriptor library.
6
7This program is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2 of the License, or
10(at your option) any later version.
11
12This program is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with this program; if not, write to the Free Software
19Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
20
21#include "config.h"
22#include <sys/types.h>
23#include "/usr/include/a.out.h"
24#include <stdio.h>
25
26#ifdef HAVE_LOCALE_H
27# include <locale.h>
28#endif
29
30#ifdef ENABLE_NLS
31# include <libintl.h>
32# define _(String) gettext (String)
33# ifdef gettext_noop
34#  define N_(String) gettext_noop (String)
35# else
36#  define N_(String) (String)
37# endif
38#else
39/* Stubs that do something close enough.  */
40# define textdomain(String) (String)
41# define gettext(String) (String)
42# define dgettext(Domain,Message) (Message)
43# define dcgettext(Domain,Message,Type) (Message)
44# define bindtextdomain(Domain,Directory) (Domain)
45# define _(String) (String)
46# define N_(String) (String)
47#endif
48
49int
50main (argc, argv)
51     int argc; char** argv;
52{
53  struct exec my_exec;
54  int page_size;
55  char *target = "unknown", *arch = "unknown";
56  FILE *file = fopen("gen-aout", "r");
57
58  if (file == NULL) {
59      fprintf(stderr, "Cannot open gen-aout!\n");
60      return -1;
61  }
62  if (fread(&my_exec, sizeof(struct exec), 1, file) != 1) {
63      fprintf(stderr, "Cannot read gen-aout!\n");
64      return -1;
65  }
66
67  target = argv[1];
68  if (target == NULL) {
69      fprintf(stderr, "Usage: gen-aout target_name\n");
70      exit (1);
71  }
72
73#ifdef N_TXTOFF
74  page_size = N_TXTOFF(my_exec);
75  if (page_size == 0)
76    printf("#define N_HEADER_IN_TEXT(x) 1\n");
77  else
78    printf("#define N_HEADER_IN_TEXT(x) 0\n");
79#endif
80
81  printf("#define BYTES_IN_WORD %d\n", sizeof (int));
82  if (my_exec.a_entry == 0) {
83      printf("#define ENTRY_CAN_BE_ZERO\n");
84      printf("#define N_SHARED_LIB(x) 0 /* Avoids warning */\n");
85  }
86  else {
87      printf("/*#define ENTRY_CAN_BE_ZERO*/\n");
88      printf("/*#define N_SHARED_LIB(x) 0*/\n");
89  }
90
91  printf("#define TEXT_START_ADDR %d\n", my_exec.a_entry);
92
93#ifdef PAGSIZ
94  if (page_size == 0)
95    page_size = PAGSIZ;
96#endif
97  if (page_size != 0)
98    printf("#define TARGET_PAGE_SIZE %d\n", page_size);
99  else
100    printf("/* #define TARGET_PAGE_SIZE ??? */\n");
101  printf("#define SEGMENT_SIZE TARGET_PAGE_SIZE\n");
102
103#ifdef vax
104  arch = "vax";
105#endif
106#ifdef m68k
107  arch = "m68k";
108#endif
109  if (arch[0] == '1')
110    {
111      fprintf (stderr, _("warning: preprocessor substituted architecture name inside string;"));
112      fprintf (stderr, _("         fix DEFAULT_ARCH in the output file yourself\n"));
113      arch = "unknown";
114    }
115  printf("#define DEFAULT_ARCH bfd_arch_%s\n", arch);
116
117  printf("\n#define MY(OP) CAT(%s_,OP)\n", target);
118  printf("#define TARGETNAME \"a.out-%s\"\n\n", target);
119
120  printf("#include \"bfd.h\"\n");
121  printf("#include \"sysdep.h\"\n");
122  printf("#include \"libbfd.h\"\n");
123  printf("#include \"libaout.h\"\n");
124  printf("\n#include \"aout-target.h\"\n");
125
126  return 0;
127}
128