libkern/mach-o/mach_header.h

   1 /*
   2  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*
  24  *      File: kern/mach_header.h
  25  *
  26  *      Definitions for accessing mach-o headers.  This header wraps the
  27  *      routines defined in osfmk/mach-o/mach_header.c; this is made clear
  28  *      by the existance of the getsectcmdsymtabfromheader() prototype.
  29  *
  30  * NOTE:        The functions prototyped by this header only operate againt
  31  *              32 bit mach headers.  Many of these functions imply the
  32  *              currently running kernel, and cannot be used against mach
  33  *              headers other than that of the currently running kernel.
  34  *
  35  * HISTORY
  36  * 29-Jan-92  Mike DeMoney (mike@next.com)
  37  *      Made into machine independent form from machdep/m68k/mach_header.h.
  38  *      Ifdef'ed out most of this since I couldn't find any references.
  39  */
  40
  41 #ifndef _KERN_MACH_HEADER_
  42 #define _KERN_MACH_HEADER_
  43
  44 #include <mach/mach_types.h>
  45 #include <mach-o/loader.h>
  46
  47 #if     KERNEL
  48 struct mach_header **getmachheaders(void);
  49 vm_offset_t getlastaddr(void);
  50
  51 struct segment_command *firstseg(void);
  52 struct segment_command *firstsegfromheader(struct mach_header *header);
  53 struct segment_command *nextseg(struct segment_command *sgp);
  54 struct segment_command *nextsegfromheader(
  55         struct mach_header      *header,
  56         struct segment_command  *seg);
  57 struct segment_command *getsegbyname(const char *seg_name);
  58 struct segment_command *getsegbynamefromheader(
  59         struct mach_header      *header,
  60         const char              *seg_name);
  61 void *getsegdatafromheader(struct mach_header *, const char *, int *);
  62 struct section *getsectbyname(const char *seg_name, const char *sect_name);
  63 struct section *getsectbynamefromheader(
  64         struct mach_header      *header,
  65         const char              *seg_name,
  66         const char              *sect_name);
  67 void *getsectdatafromheader(struct mach_header *, const char *, const char *, int *);
  68 struct section *firstsect(struct segment_command *sgp);
  69 struct section *nextsect(struct segment_command *sgp, struct section *sp);
  70 struct fvmlib_command *fvmlib(void);
  71 struct fvmlib_command *fvmlibfromheader(struct mach_header *header);
  72 struct segment_command *getfakefvmseg(void);
  73 #ifdef MACH_KDB
  74 struct symtab_command *getsectcmdsymtabfromheader(struct mach_header *);
  75 boolean_t getsymtab(struct mach_header *, vm_offset_t *, int *,
  76         vm_offset_t *,  vm_size_t *);
  77 #endif
  78
  79 #endif  /* KERNEL */
  80
  81 #endif  /* _KERN_MACH_HEADER_ */