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68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
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/* Generate parameters for an a.out system.
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Copyright (C) 1990-1991 Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "/usr/include/a.out.h"
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#include <stdio.h>
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/* Stuffed value of "ABCD" in a long, followed by a 0. */
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long int str[2] = { 0x41424344, 0x0 };
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main ()
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{
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struct exec my_exec;
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int page_size;
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FILE *file = fopen("gen-aout", "r");
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if (file == NULL) {
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fprintf(stderr, "Cannot open gen-aout!\n");
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return -1;
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}
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if (fread(&my_exec, sizeof(struct exec), 1, file) != 1) {
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fprintf(stderr, "Cannot read gen-aout!\n");
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return -1;
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}
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if (strcmp ((char *)&str[0], "ABCD") == 0)
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printf("#define TARGET_IS_BIG_ENDIAN_P\n");
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else
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printf("#define TARGET_IS_LITTLE_ENDIAN_P\n");
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#ifdef N_TXTOFF
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page_size = N_TXTOFF(my_exec);
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if (page_size == 0)
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printf("#define N_HEADER_IN_TEXT(x) 1\n");
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else
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printf("#define N_HEADER_IN_TEXT(x) 0\n");
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#endif
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printf("#define BYTES_IN_WORD 4\n");
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printf("#define ARCH 32\n");
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if (my_exec.a_entry == 0)
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printf("#define ENTRY_CAN_BE_ZERO\n");
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printf("#define TEXT_START_ADDR %d\n", my_exec.a_entry);
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#ifdef PAGSIZ
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if (page_size == 0)
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page_size = PAGSIZ;
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#endif
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if (page_size != 0)
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printf("#define PAGE_SIZE %d\n", page_size);
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return 0;
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}
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