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118 lines
3.2 KiB
C
118 lines
3.2 KiB
C
/* Generate parameters for an a.out system.
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Copyright (C) 1990-2021 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include "/usr/include/a.out.h"
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#include <stdio.h>
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#ifndef _
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#define _(X) X
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#endif
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int
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main (int argc, char** argv)
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{
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struct exec my_exec;
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int page_size;
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char * target;
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char * arch = "unknown";
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FILE * file;
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target = argv[1];
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if (target == NULL)
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{
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fprintf (stderr, "Usage: gen-aout target_name\n");
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exit (1);
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}
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file = fopen ("gen-aout", "r");
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if (file == NULL)
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{
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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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{
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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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fclose (file);
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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 %d\n", sizeof (int));
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if (my_exec.a_entry == 0)
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{
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printf ("#define ENTRY_CAN_BE_ZERO\n");
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printf ("#define N_SHARED_LIB(x) 0 /* Avoids warning */\n");
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}
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else
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{
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printf ("/*#define ENTRY_CAN_BE_ZERO*/\n");
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printf ("/*#define N_SHARED_LIB(x) 0*/\n");
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}
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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 TARGET_PAGE_SIZE %d\n", page_size);
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else
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printf ("/* #define TARGET_PAGE_SIZE ??? */\n");
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printf ("#define SEGMENT_SIZE TARGET_PAGE_SIZE\n");
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#ifdef vax
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arch = "vax";
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#endif
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if (arch[0] == '1')
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{
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fprintf (stderr, _("warning: preprocessor substituted architecture name inside string;"));
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fprintf (stderr, _(" fix DEFAULT_ARCH in the output file yourself\n"));
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arch = "unknown";
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}
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printf ("#define DEFAULT_ARCH bfd_arch_%s\n\n", arch);
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printf ("/* Do not \"beautify\" the CONCAT* macro args. Traditional C will not");
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printf (" remove whitespace added here, and thus will fail to concatenate");
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printf (" the tokens. */");
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printf ("\n#define MY(OP) CONCAT2 (%s_,OP)\n\n", target);
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printf ("#define TARGETNAME \"a.out-%s\"\n\n", target);
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printf ("#include \"sysdep.h\"\n");
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printf ("#include \"bfd.h\"\n");
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printf ("#include \"libbfd.h\"\n");
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printf ("#include \"libaout.h\"\n");
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printf ("\n#include \"aout-target.h\"\n");
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return 0;
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}
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