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- /* Generate parameters for an a.out system.
- Copyright (C) 1990-2022 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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