8eb1c4caf9
cross-releasing i386 on different architectures. This version provides an i386 version of <a.out.h>, and handles endianness. Tested on: alpha, sparc64
140 lines
5.2 KiB
C
140 lines
5.2 KiB
C
/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. 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 the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)exec.h 8.1 (Berkeley) 6/11/93
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* from: FreeBSD: src/sys/sys/imgact_aout.h,v 1.18 2002/09/05 07:54:03 bde Exp $
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* $FreeBSD$
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*/
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#ifndef _I386_AOUT_H_
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#define _I386_AOUT_H_
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#include <sys/types.h>
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#include "endian.h"
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#define __I386_LDPGSZ 4096
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#define I386_N_GETMAGIC(ex) \
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( LE32TOH((ex).a_midmag) & 0xffff )
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#define I386_N_SETMAGIC(ex,mag,mid,flag) \
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( (ex).a_midmag = HTOLE32((((flag) & 0x3f) <<26) | \
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(((mid) & 0x03ff) << 16) | \
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((mag) & 0xffff)) )
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#define I386_N_ALIGN(ex,x) \
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(I386_N_GETMAGIC(ex) == ZMAGIC || I386_N_GETMAGIC(ex) == QMAGIC ? \
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((x) + __I386_LDPGSZ - 1) & ~(uint32_t)(__I386_LDPGSZ - 1) : (x))
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/* Valid magic number check. */
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#define I386_N_BADMAG(ex) \
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(I386_N_GETMAGIC(ex) != OMAGIC && I386_N_GETMAGIC(ex) != NMAGIC && \
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I386_N_GETMAGIC(ex) != ZMAGIC && I386_N_GETMAGIC(ex) != QMAGIC)
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/* Address of the bottom of the text segment. */
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/*
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* This can not be done right. Abuse a_entry in some cases to handle kernels.
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*/
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#define I386_N_TXTADDR(ex) \
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((I386_N_GETMAGIC(ex) == OMAGIC || I386_N_GETMAGIC(ex) == NMAGIC || \
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I386_N_GETMAGIC(ex) == ZMAGIC) ? \
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(LE32TOH((ex).a_entry) < LE32TOH((ex).a_text) ? 0 : \
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LE32TOH((ex).a_entry) & ~__I386_LDPGSZ) : __I386_LDPGSZ)
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/* Address of the bottom of the data segment. */
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#define I386_N_DATADDR(ex) \
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I386_N_ALIGN(ex, I386_N_TXTADDR(ex) + LE32TOH((ex).a_text))
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/* Text segment offset. */
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#define I386_N_TXTOFF(ex) \
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(I386_N_GETMAGIC(ex) == ZMAGIC ? __I386_LDPGSZ : \
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(I386_N_GETMAGIC(ex) == QMAGIC ? 0 : sizeof(struct exec)))
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/* Data segment offset. */
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#define I386_N_DATOFF(ex) \
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I386_N_ALIGN(ex, I386_N_TXTOFF(ex) + LE32TOH((ex).a_text))
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/* Relocation table offset. */
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#define I386_N_RELOFF(ex) \
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I386_N_ALIGN(ex, I386_N_DATOFF(ex) + LE32TOH((ex).a_data))
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/* Symbol table offset. */
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#define I386_N_SYMOFF(ex) \
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(I386_N_RELOFF(ex) + LE32TOH((ex).a_trsize) + LE32TOH((ex).a_drsize))
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/* String table offset. */
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#define I386_N_STROFF(ex) (I386_N_SYMOFF(ex) + LE32TOH((ex).a_syms))
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/*
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* Header prepended to each a.out file.
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* only manipulate the a_midmag field via the
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* N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros in a.out.h
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*/
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struct i386_exec {
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uint32_t a_midmag; /* flags<<26 | mid<<16 | magic */
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uint32_t a_text; /* text segment size */
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uint32_t a_data; /* initialized data size */
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uint32_t a_bss; /* uninitialized data size */
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uint32_t a_syms; /* symbol table size */
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uint32_t a_entry; /* entry point */
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uint32_t a_trsize; /* text relocation size */
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uint32_t a_drsize; /* data relocation size */
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};
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#define a_magic a_midmag /* XXX Hack to work with current kern_execve.c */
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/* a_magic */
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#define OMAGIC 0407 /* old impure format */
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#define NMAGIC 0410 /* read-only text */
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#define ZMAGIC 0413 /* demand load format */
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#define QMAGIC 0314 /* "compact" demand load format */
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/* a_mid */
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#define MID_ZERO 0 /* unknown - implementation dependent */
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#define MID_SUN010 1 /* sun 68010/68020 binary */
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#define MID_SUN020 2 /* sun 68020-only binary */
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#define MID_I386 134 /* i386 BSD binary */
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#define MID_SPARC 138 /* sparc */
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#define MID_HP200 200 /* hp200 (68010) BSD binary */
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#define MID_HP300 300 /* hp300 (68020+68881) BSD binary */
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#define MID_HPUX 0x20C /* hp200/300 HP-UX binary */
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#define MID_HPUX800 0x20B /* hp800 HP-UX binary */
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/*
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* a_flags
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*/
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#define EX_PIC 0x10 /* contains position independent code */
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#define EX_DYNAMIC 0x20 /* contains run-time link-edit info */
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#define EX_DPMASK 0x30 /* mask for the above */
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#endif /* !_I386_AOUT_H_ */
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