1 /* BFD back-end for i386 a.out binaries under dynix. 2 Copyright 1994, 1995, 2001, 2003 Free Software Foundation, Inc. 3 4 This file is part of BFD, the Binary File Descriptor library. 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 19 20 /* This BFD is currently only tested with gdb, writing object files 21 may not work. */ 22 23 #define TEXT_START_ADDR 4096 24 #define TARGET_PAGE_SIZE 4096 25 #define SEGMENT_SIZE TARGET_PAGE_SIZE 26 27 #include "aout/dynix3.h" 28 29 #define DEFAULT_ARCH bfd_arch_i386 30 #define MACHTYPE_OK(mtype) ((mtype) == M_386 || (mtype) == M_UNKNOWN) 31 32 /* Do not "beautify" the CONCAT* macro args. Traditional C will not 33 remove whitespace added here, and thus will fail to concatenate 34 the tokens. */ 35 #define MY(OP) CONCAT2 (i386dynix_,OP) 36 #define TARGETNAME "a.out-i386-dynix" 37 #define NAME(x,y) CONCAT3 (i386dynix,_32_,y) 38 #define ARCH_SIZE 32 39 #define NAME_swap_exec_header_in NAME(i386dynix_32_,swap_exec_header_in) 40 #define MY_get_section_contents aout_32_get_section_contents 41 42 /* aoutx.h requires definitions for NMAGIC, BMAGIC and QMAGIC. */ 43 #define NMAGIC 0 44 #define BMAGIC OMAGIC 45 #define QMAGIC XMAGIC 46 47 #include "aoutx.h" 48 49 /* (Ab)use some fields in the internal exec header to be able to read 50 executables that contain shared data. */ 51 52 #define a_shdata a_tload 53 #define a_shdrsize a_dload 54 55 void 56 i386dynix_32_swap_exec_header_in (abfd, raw_bytes, execp) 57 bfd *abfd; 58 struct external_exec *raw_bytes; 59 struct internal_exec *execp; 60 { 61 struct external_exec *bytes = (struct external_exec *)raw_bytes; 62 63 /* The internal_exec structure has some fields that are unused in this 64 configuration (IE for i960), so ensure that all such uninitialized 65 fields are zero'd out. There are places where two of these structs 66 are memcmp'd, and thus the contents do matter. */ 67 memset ((PTR) execp, 0, sizeof (struct internal_exec)); 68 /* Now fill in fields in the execp, from the bytes in the raw data. */ 69 execp->a_info = H_GET_32 (abfd, bytes->e_info); 70 execp->a_text = GET_WORD (abfd, bytes->e_text); 71 execp->a_data = GET_WORD (abfd, bytes->e_data); 72 execp->a_bss = GET_WORD (abfd, bytes->e_bss); 73 execp->a_syms = GET_WORD (abfd, bytes->e_syms); 74 execp->a_entry = GET_WORD (abfd, bytes->e_entry); 75 execp->a_trsize = GET_WORD (abfd, bytes->e_trsize); 76 execp->a_drsize = GET_WORD (abfd, bytes->e_drsize); 77 execp->a_shdata = GET_WORD (abfd, bytes->e_shdata); 78 execp->a_shdrsize = GET_WORD (abfd, bytes->e_shdrsize); 79 } 80 81 #include "aout-target.h" 82