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252b5132 RH |
1 | /* Generate parameters for an a.out system. |
2 | Copyright (C) 1990, 91, 92, 93, 94, 98 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | #include "/usr/include/a.out.h" | |
21 | #include <stdio.h> | |
22 | ||
23 | int | |
24 | main (argc, argv) | |
25 | int argc; char** argv; | |
26 | { | |
27 | struct exec my_exec; | |
28 | int page_size; | |
29 | char *target = "unknown", *arch = "unknown"; | |
30 | FILE *file = fopen("gen-aout", "r"); | |
31 | ||
32 | if (file == NULL) { | |
33 | fprintf(stderr, "Cannot open gen-aout!\n"); | |
34 | return -1; | |
35 | } | |
36 | if (fread(&my_exec, sizeof(struct exec), 1, file) != 1) { | |
37 | fprintf(stderr, "Cannot read gen-aout!\n"); | |
38 | return -1; | |
39 | } | |
40 | ||
41 | target = argv[1]; | |
42 | if (target == NULL) { | |
43 | fprintf(stderr, "Usage: gen-aout target_name\n"); | |
44 | exit (1); | |
45 | } | |
46 | ||
47 | #ifdef N_TXTOFF | |
48 | page_size = N_TXTOFF(my_exec); | |
49 | if (page_size == 0) | |
50 | printf("#define N_HEADER_IN_TEXT(x) 1\n"); | |
51 | else | |
52 | printf("#define N_HEADER_IN_TEXT(x) 0\n"); | |
53 | #endif | |
54 | ||
55 | printf("#define BYTES_IN_WORD %d\n", sizeof (int)); | |
56 | if (my_exec.a_entry == 0) { | |
57 | printf("#define ENTRY_CAN_BE_ZERO\n"); | |
58 | printf("#define N_SHARED_LIB(x) 0 /* Avoids warning */\n"); | |
59 | } | |
60 | else { | |
61 | printf("/*#define ENTRY_CAN_BE_ZERO*/\n"); | |
62 | printf("/*#define N_SHARED_LIB(x) 0*/\n"); | |
63 | } | |
64 | ||
65 | printf("#define TEXT_START_ADDR %d\n", my_exec.a_entry); | |
66 | ||
67 | #ifdef PAGSIZ | |
68 | if (page_size == 0) | |
69 | page_size = PAGSIZ; | |
70 | #endif | |
71 | if (page_size != 0) | |
72 | printf("#define TARGET_PAGE_SIZE %d\n", page_size); | |
73 | else | |
74 | printf("/* #define TARGET_PAGE_SIZE ??? */\n"); | |
75 | printf("#define SEGMENT_SIZE TARGET_PAGE_SIZE\n"); | |
76 | ||
77 | #ifdef vax | |
78 | arch = "vax"; | |
79 | #endif | |
80 | #ifdef m68k | |
81 | arch = "m68k"; | |
82 | #endif | |
83 | if (arch[0] == '1') | |
84 | { | |
85 | fprintf (stderr, _("warning: preprocessor substituted architecture name inside string;")); | |
86 | fprintf (stderr, _(" fix DEFAULT_ARCH in the output file yourself\n")); | |
87 | arch = "unknown"; | |
88 | } | |
89 | printf("#define DEFAULT_ARCH bfd_arch_%s\n", arch); | |
90 | ||
91 | printf("\n#define MY(OP) CAT(%s_,OP)\n", target); | |
92 | printf("#define TARGETNAME \"a.out-%s\"\n\n", target); | |
93 | ||
94 | printf("#include \"bfd.h\"\n"); | |
95 | printf("#include \"sysdep.h\"\n"); | |
96 | printf("#include \"libbfd.h\"\n"); | |
97 | printf("#include \"libaout.h\"\n"); | |
98 | printf("\n#include \"aout-target.h\"\n"); | |
99 | ||
100 | return 0; | |
101 | } |