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exec_coff.h
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exec_coff.h
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/* $NetBSD: exec_coff.h,v 1.7 2005/12/11 12:25:20 christos Exp $ */
/*-
* Copyright (C) 2000 SAITOH Masanobu. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SYS_EXEC_COFF_H_
#define _SYS_EXEC_COFF_H_
#include <machine/coff_machdep.h>
/*
* COFF file header
*/
struct coff_filehdr {
u_short f_magic; /* magic number */
u_short f_nscns; /* # of sections */
long f_timdat; /* timestamp */
long f_symptr; /* file offset of symbol table */
long f_nsyms; /* # of symbol table entries */
u_short f_opthdr; /* size of optional header */
u_short f_flags; /* flags */
};
/* f_flags */
#define COFF_F_RELFLG 0x1
#define COFF_F_EXEC 0x2
#define COFF_F_LNNO 0x4
#define COFF_F_LSYMS 0x8
#define COFF_F_SWABD 0x40
#define COFF_F_AR16WR 0x80
#define COFF_F_AR32WR 0x100
#define COFF_F_AR32W 0x200
/*
* COFF system header
*/
struct coff_aouthdr {
short a_magic;
short a_vstamp;
long a_tsize;
long a_dsize;
long a_bsize;
long a_entry;
long a_tstart;
long a_dstart;
};
/*
* COFF section header
*/
struct coff_scnhdr {
char s_name[8];
long s_paddr;
long s_vaddr;
long s_size;
long s_scnptr;
long s_relptr;
long s_lnnoptr;
u_short s_nreloc;
u_short s_nlnno;
long s_flags;
};
/* s_flags */
#define COFF_STYP_REG 0x00
#define COFF_STYP_DSECT 0x01
#define COFF_STYP_NOLOAD 0x02
#define COFF_STYP_GROUP 0x04
#define COFF_STYP_PAD 0x08
#define COFF_STYP_COPY 0x10
#define COFF_STYP_TEXT 0x20
#define COFF_STYP_DATA 0x40
#define COFF_STYP_BSS 0x80
#define COFF_STYP_INFO 0x200
#define COFF_STYP_OVER 0x400
#define COFF_STYP_SHLIB 0x800
/*
* COFF shared library header
*/
struct coff_slhdr {
long entry_len; /* in words */
long path_index; /* in words */
char sl_name[1];
};
struct coff_exechdr {
struct coff_filehdr f;
struct coff_aouthdr a;
};
#define COFF_ROUND(val, by) (((val) + by - 1) & ~(by - 1))
#define COFF_ALIGN(a) ((a) & ~(COFF_LDPGSZ - 1))
#define COFF_HDR_SIZE \
(sizeof(struct coff_filehdr) + sizeof(struct coff_aouthdr))
#define COFF_BLOCK_ALIGN(ap, value) \
((ap)->a_magic == COFF_ZMAGIC ? COFF_ROUND(value, COFF_LDPGSZ) : \
value)
#define COFF_TXTOFF(fp, ap) \
((ap)->a_magic == COFF_ZMAGIC ? 0 : \
COFF_ROUND(COFF_HDR_SIZE + (fp)->f_nscns * \
sizeof(struct coff_scnhdr), \
COFF_SEGMENT_ALIGNMENT(fp, ap)))
#define COFF_DATOFF(fp, ap) \
(COFF_BLOCK_ALIGN(ap, COFF_TXTOFF(fp, ap) + (ap)->a_tsize))
#define COFF_SEGMENT_ALIGN(fp, ap, value) \
(COFF_ROUND(value, ((ap)->a_magic == COFF_ZMAGIC ? COFF_LDPGSZ : \
COFF_SEGMENT_ALIGNMENT(fp, ap))))
#ifdef _KERNEL
int exec_coff_makecmds(struct lwp *, struct exec_package *);
int exec_coff_prep_omagic(struct lwp *, struct exec_package *,
struct coff_filehdr *,
struct coff_aouthdr *);
int exec_coff_prep_nmagic(struct lwp *, struct exec_package *,
struct coff_filehdr *,
struct coff_aouthdr *);
int exec_coff_prep_zmagic(struct lwp *, struct exec_package *,
struct coff_filehdr *,
struct coff_aouthdr *);
#endif /* _KERNEL */
#endif /* !_SYS_EXEC_COFF_H_ */