diff options
Diffstat (limited to 'bfd/i386dynix.c')
| -rw-r--r-- | bfd/i386dynix.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/bfd/i386dynix.c b/bfd/i386dynix.c new file mode 100644 index 0000000..ff50a14 --- /dev/null +++ b/bfd/i386dynix.c @@ -0,0 +1,80 @@ +/* BFD back-end for i386 a.out binaries under dynix. + Copyright (C) 1994, 1995 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* This BFD is currently only tested with gdb, writing object files + may not work. */ + +#define BYTES_IN_WORD 4 + +#define TEXT_START_ADDR 4096 +#define TARGET_PAGE_SIZE 4096 +#define SEGMENT_SIZE TARGET_PAGE_SIZE + +#include "aout/dynix3.h" + +#define DEFAULT_ARCH bfd_arch_i386 +#define MACHTYPE_OK(mtype) ((mtype) == M_386 || (mtype) == M_UNKNOWN) + +#define MY(OP) CAT(i386dynix_,OP) +#define TARGETNAME "a.out-i386-dynix" +#define NAME(x,y) CAT3(i386dynix,_32_,y) +#define ARCH_SIZE 32 +#define NAME_swap_exec_header_in NAME(i386dynix_32_,swap_exec_header_in) +#define MY_get_section_contents aout_32_get_section_contents + +/* aoutx.h requires definitions for NMAGIC, BMAGIC and QMAGIC. */ +#define NMAGIC 0 +#define BMAGIC OMAGIC +#define QMAGIC XMAGIC + +#include "aoutx.h" + +/* (Ab)use some fields in the internal exec header to be able to read + executables that contain shared data. */ + +#define a_shdata a_tload +#define a_shdrsize a_dload + +void +i386dynix_32_swap_exec_header_in (abfd, raw_bytes, execp) + bfd *abfd; + struct external_exec *raw_bytes; + struct internal_exec *execp; +{ + struct external_exec *bytes = (struct external_exec *)raw_bytes; + + /* The internal_exec structure has some fields that are unused in this + configuration (IE for i960), so ensure that all such uninitialized + fields are zero'd out. There are places where two of these structs + are memcmp'd, and thus the contents do matter. */ + memset ((PTR) execp, 0, sizeof (struct internal_exec)); + /* Now fill in fields in the execp, from the bytes in the raw data. */ + execp->a_info = bfd_h_get_32 (abfd, bytes->e_info); + execp->a_text = GET_WORD (abfd, bytes->e_text); + execp->a_data = GET_WORD (abfd, bytes->e_data); + execp->a_bss = GET_WORD (abfd, bytes->e_bss); + execp->a_syms = GET_WORD (abfd, bytes->e_syms); + execp->a_entry = GET_WORD (abfd, bytes->e_entry); + execp->a_trsize = GET_WORD (abfd, bytes->e_trsize); + execp->a_drsize = GET_WORD (abfd, bytes->e_drsize); + execp->a_shdata = GET_WORD (abfd, bytes->e_shdata); + execp->a_shdrsize = GET_WORD (abfd, bytes->e_shdrsize); +} + +#include "aout-target.h" |