| /* Generate parameters for an a.out system. |
| Copyright (C) 1990-2024 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; |
| } |