Automatic date update in version.in
[binutils-gdb.git] / bfd / gen-aout.c
blob26ef78359dbad07691f3939aae37b1d8af0b79a7
1 /* Generate parameters for an a.out system.
2 Copyright (C) 1990-2022 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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. */
21 #include "/usr/include/a.out.h"
22 #include <stdio.h>
24 #ifndef _
25 #define _(X) X
26 #endif
28 int
29 main (int argc, char** argv)
31 struct exec my_exec;
32 int page_size;
33 char * target;
34 char * arch = "unknown";
35 FILE * file;
37 target = argv[1];
38 if (target == NULL)
40 fprintf (stderr, "Usage: gen-aout target_name\n");
41 exit (1);
44 file = fopen ("gen-aout", "r");
45 if (file == NULL)
47 fprintf (stderr, "Cannot open gen-aout!\n");
48 return -1;
51 if (fread (&my_exec, sizeof (struct exec), 1, file) != 1)
53 fprintf(stderr, "Cannot read gen-aout!\n");
54 return -1;
57 fclose (file);
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
67 printf("#define BYTES_IN_WORD %d\n", sizeof (int));
68 if (my_exec.a_entry == 0)
70 printf ("#define ENTRY_CAN_BE_ZERO\n");
71 printf ("#define N_SHARED_LIB(x) 0 /* Avoids warning */\n");
73 else
75 printf ("/*#define ENTRY_CAN_BE_ZERO*/\n");
76 printf ("/*#define N_SHARED_LIB(x) 0*/\n");
79 printf ("#define TEXT_START_ADDR %d\n", my_exec.a_entry);
81 #ifdef PAGSIZ
82 if (page_size == 0)
83 page_size = PAGSIZ;
84 #endif
86 if (page_size != 0)
87 printf ("#define TARGET_PAGE_SIZE %d\n", page_size);
88 else
89 printf ("/* #define TARGET_PAGE_SIZE ??? */\n");
91 printf ("#define SEGMENT_SIZE TARGET_PAGE_SIZE\n");
93 #ifdef vax
94 arch = "vax";
95 #endif
96 if (arch[0] == '1')
98 fprintf (stderr, _("warning: preprocessor substituted architecture name inside string;"));
99 fprintf (stderr, _(" fix DEFAULT_ARCH in the output file yourself\n"));
100 arch = "unknown";
102 printf ("#define DEFAULT_ARCH bfd_arch_%s\n\n", arch);
104 printf ("/* Do not \"beautify\" the CONCAT* macro args. Traditional C will not");
105 printf (" remove whitespace added here, and thus will fail to concatenate");
106 printf (" the tokens. */");
107 printf ("\n#define MY(OP) CONCAT2 (%s_,OP)\n\n", target);
108 printf ("#define TARGETNAME \"a.out-%s\"\n\n", target);
110 printf ("#include \"sysdep.h\"\n");
111 printf ("#include \"bfd.h\"\n");
112 printf ("#include \"libbfd.h\"\n");
113 printf ("#include \"libaout.h\"\n");
114 printf ("\n#include \"aout-target.h\"\n");
116 return 0;