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/* Generate parameters for an a.out system.
Copyright (C) 1990-2021 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
#include "/usr/include/a.out.h"
#include <stdio.h>
#ifndef _
#define _(X) X
#endif
int
main (int argc, char** argv)
{
struct exec my_exec;
int page_size;
char * target;
char * arch = "unknown";
FILE * file;
target = argv[1];
if (target == NULL)
{
fprintf (stderr, "Usage: gen-aout target_name\n");
exit (1);
}
file = fopen ("gen-aout", "r");
if (file == NULL)
{
fprintf (stderr, "Cannot open gen-aout!\n");
return -1;
}
if (fread (&my_exec, sizeof (struct exec), 1, file) != 1)
{
fprintf(stderr, "Cannot read gen-aout!\n");
return -1;
}
fclose (file);
#ifdef N_TXTOFF
page_size = N_TXTOFF (&my_exec);
if (page_size == 0)
printf ("#define N_HEADER_IN_TEXT(x) 1\n");
else
printf ("#define N_HEADER_IN_TEXT(x) 0\n");
#endif
printf("#define BYTES_IN_WORD %d\n", sizeof (int));
if (my_exec.a_entry == 0)
{
printf ("#define ENTRY_CAN_BE_ZERO\n");
printf ("#define N_SHARED_LIB(x) 0 /* Avoids warning */\n");
}
else
{
printf ("/*#define ENTRY_CAN_BE_ZERO*/\n");
printf ("/*#define N_SHARED_LIB(x) 0*/\n");
}
printf ("#define TEXT_START_ADDR %d\n", my_exec.a_entry);
#ifdef PAGSIZ
if (page_size == 0)
page_size = PAGSIZ;
#endif
if (page_size != 0)
printf ("#define TARGET_PAGE_SIZE %d\n", page_size);
else
printf ("/* #define TARGET_PAGE_SIZE ??? */\n");
printf ("#define SEGMENT_SIZE TARGET_PAGE_SIZE\n");
#ifdef vax
arch = "vax";
#endif
if (arch[0] == '1')
{
fprintf (stderr, _("warning: preprocessor substituted architecture name inside string;"));
fprintf (stderr, _(" fix DEFAULT_ARCH in the output file yourself\n"));
arch = "unknown";
}
printf ("#define DEFAULT_ARCH bfd_arch_%s\n\n", arch);
printf ("/* Do not \"beautify\" the CONCAT* macro args. Traditional C will not");
printf (" remove whitespace added here, and thus will fail to concatenate");
printf (" the tokens. */");
printf ("\n#define MY(OP) CONCAT2 (%s_,OP)\n\n", target);
printf ("#define TARGETNAME \"a.out-%s\"\n\n", target);
printf ("#include \"sysdep.h\"\n");
printf ("#include \"bfd.h\"\n");
printf ("#include \"libbfd.h\"\n");
printf ("#include \"libaout.h\"\n");
printf ("\n#include \"aout-target.h\"\n");
return 0;
}
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