xnu-792.13.8.tar.gz

[apple/xnu.git] / osfmk / mach-o / mach_header.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code 
 * as defined in and that are subject to the Apple Public Source License 
 * Version 2.0 (the 'License'). You may not use this file except in 
 * compliance with the License.  The rights granted to you under the 
 * License may not be used to create, or enable the creation or 
 * redistribution of, unlawful or unlicensed copies of an Apple operating 
 * system, or to circumvent, violate, or enable the circumvention or 
 * violation of, any terms of an Apple operating system software license 
 * agreement.
 *
 * Please obtain a copy of the License at 
 * http://www.opensource.apple.com/apsl/ and read it before using this 
 * file.
 *
 * The Original Code and all software distributed under the License are 
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
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/*
 *	File: kern/mach_header.h
 *
 *    Definitions for accessing mach-o headers.  This header wraps the
 *    routines defined in osfmk/mach-o/mach_header.c; this is made clear
 *    by the existance of the getsectcmdsymtabfromheader() prototype.
 *
 * NOTE:      The functions prototyped by this header only operate againt
 *            32 bit mach headers.  Many of these functions imply the
 *            currently running kernel, and cannot be used against mach
 *            headers other than that of the currently running kernel.
 *
 * HISTORY
 * 29-Jan-92  Mike DeMoney (mike@next.com)
 *	Made into machine independent form from machdep/m68k/mach_header.h.
 *	Ifdef'ed out most of this since I couldn't find any references.
 */

#ifndef	_KERN_MACH_HEADER_
#define	_KERN_MACH_HEADER_

#include <mach/mach_types.h>
#include <mach-o/loader.h>

#if	MACH_KERNEL
struct mach_header **getmachheaders(void);
vm_offset_t getlastaddr(void);

struct segment_command *firstseg(void);
struct segment_command *firstsegfromheader(struct mach_header *header);
struct segment_command *nextseg(struct segment_command *sgp);
struct segment_command *nextsegfromheader(
	struct mach_header	*header,
	struct segment_command	*seg);
struct segment_command *getsegbyname(const char *seg_name);
struct segment_command *getsegbynamefromheader(
	struct mach_header	*header,
	const char		*seg_name);
void *getsegdatafromheader(struct mach_header *, const char *, int *);
struct section *getsectbyname(const char *seg_name, const char *sect_name);
struct section *getsectbynamefromheader(
	struct mach_header	*header,
	const char		*seg_name,
	const char		*sect_name);
void *getsectdatafromheader(struct mach_header *, const char *, const char *, int *);
struct section *firstsect(struct segment_command *sgp);
struct section *nextsect(struct segment_command *sgp, struct section *sp);
struct fvmlib_command *fvmlib(void);
struct fvmlib_command *fvmlibfromheader(struct mach_header *header);
struct segment_command *getfakefvmseg(void);
#ifdef MACH_KDB
struct symtab_command *getsectcmdsymtabfromheader(struct mach_header *);
boolean_t getsymtab(struct mach_header *, vm_offset_t *, int *,
	vm_offset_t *,  vm_size_t *);
#endif

#endif	/* KERNEL */

#endif	/* _KERN_MACH_HEADER_ */