e475dba424
and generate an appropriate child object, which knows how to load its text & data into memory
(and symbols, for ecoff only at this point). Ecoff format supports Tru64 binaries, kernel, and
console. A.out format is used by PAL code. Elf support is there and appears to work for
Alpha/Linux binaries, but awaits a Linux syscall emulation layer before further testing.
arch/alpha/ecoff_machdep.h:
base/coff_sym.h:
base/coff_symconst.h:
base/exec_ecoff.h:
Add Id string & provenance comment, clean up types
base/object_file.cc:
base/object_file.hh:
Add auto format detection and text/data loading.
sim/prog.cc:
Moved binary loading & stack setup here (was in arch/alpha/loader.cc). Some of this is
platform-dependent, but I think most of it is not. We'll factor out the platform-dependent
parts when the need arises.
sim/prog.hh:
Get rid of unused environ_base field.
sim/system.cc:
Use new ObjectFile loader structure for console, kernel, & palcode.
--HG--
extra : convert_revision : 8eae509bf71cf204bc3ec78c68699cfd01baed97
111 lines
4 KiB
C
111 lines
4 KiB
C
/* $Id$ */
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/*
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* Taken from NetBSD sys/exec_ecoff.h
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*/
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/* $NetBSD: exec_ecoff.h,v 1.13 2003/01/18 09:53:18 thorpej Exp $ */
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/*
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* Copyright (c) 1994 Adam Glass
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Adam Glass.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SYS_EXEC_ECOFF_H_
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#define _SYS_EXEC_ECOFF_H_
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#include "ecoff_machdep.h"
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struct ecoff_filehdr {
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coff_ushort f_magic; /* magic number */
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coff_ushort f_nscns; /* # of sections */
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coff_uint f_timdat; /* time and date stamp */
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coff_ulong f_symptr; /* file offset of symbol table */
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coff_uint f_nsyms; /* # of symbol table entries */
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coff_ushort f_opthdr; /* sizeof the optional header */
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coff_ushort f_flags; /* flags??? */
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};
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struct ecoff_aouthdr {
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coff_ushort magic;
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coff_ushort vstamp;
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ECOFF_PAD
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coff_ulong tsize;
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coff_ulong dsize;
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coff_ulong bsize;
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coff_ulong entry;
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coff_ulong text_start;
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coff_ulong data_start;
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coff_ulong bss_start;
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ECOFF_MACHDEP;
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};
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struct ecoff_scnhdr { /* needed for size info */
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char s_name[8]; /* name */
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coff_ulong s_paddr; /* physical addr? for ROMing?*/
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coff_ulong s_vaddr; /* virtual addr? */
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coff_ulong s_size; /* size */
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coff_ulong s_scnptr; /* file offset of raw data */
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coff_ulong s_relptr; /* file offset of reloc data */
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coff_ulong s_lnnoptr; /* file offset of line data */
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coff_ushort s_nreloc; /* # of relocation entries */
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coff_ushort s_nlnno; /* # of line entries */
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coff_uint s_flags; /* flags */
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};
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struct ecoff_exechdr {
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struct ecoff_filehdr f;
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struct ecoff_aouthdr a;
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};
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#define ECOFF_HDR_SIZE (sizeof(struct ecoff_exechdr))
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#define ECOFF_OMAGIC 0407
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#define ECOFF_NMAGIC 0410
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#define ECOFF_ZMAGIC 0413
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#define ECOFF_ROUND(value, by) \
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(((value) + (by) - 1) & ~((by) - 1))
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#define ECOFF_BLOCK_ALIGN(ep, value) \
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((ep)->a.magic == ECOFF_ZMAGIC ? ECOFF_ROUND((value), ECOFF_LDPGSZ) : \
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(value))
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#define ECOFF_TXTOFF(ep) \
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((ep)->a.magic == ECOFF_ZMAGIC ? 0 : \
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ECOFF_ROUND(ECOFF_HDR_SIZE + (ep)->f.f_nscns * \
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sizeof(struct ecoff_scnhdr), ECOFF_SEGMENT_ALIGNMENT(ep)))
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#define ECOFF_DATOFF(ep) \
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(ECOFF_BLOCK_ALIGN((ep), ECOFF_TXTOFF(ep) + (ep)->a.tsize))
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#define ECOFF_SEGMENT_ALIGN(ep, value) \
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(ECOFF_ROUND((value), ((ep)->a.magic == ECOFF_ZMAGIC ? ECOFF_LDPGSZ : \
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ECOFF_SEGMENT_ALIGNMENT(ep))))
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#endif /* !_SYS_EXEC_ECOFF_H_ */
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