/* * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_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, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1994, The University of Utah and * the Center for Software Science at the University of Utah (CSS). * All rights reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * THE UNIVERSITY OF UTAH AND CSS ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSS DISCLAIM ANY LIABILITY OF * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * CSS requests users of this software to return to css-dist@cs.utah.edu any * improvements that they make and grant CSS redistribution rights. * */ #ifndef _BSD_PPC_EXEC_H_ #define _BSD_PPC_EXEC_H_ #include <sys/appleapiopts.h> #ifdef BSD_KERNEL_PRIVATE /* Size of a page in an object file. */ #define __LDPGSZ 4096 /* Valid magic number check. */ #define N_BADMAG(ex) \ ((ex).a_magic != NMAGIC && (ex).a_magic != OMAGIC && \ (ex).a_magic != ZMAGIC) /* Address of the bottom of the text segment. */ #define N_TXTADDR(X) 0 /* Address of the bottom of the data segment. */ #define N_DATADDR(ex) \ (N_TXTADDR(ex) + ((ex).a_magic == OMAGIC ? (ex).a_text \ : __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1)))) /* Text segment offset. */ #define N_TXTOFF(ex) \ ((ex).a_magic == ZMAGIC ? __LDPGSZ : sizeof(struct exec)) /* Data segment offset. */ #define N_DATOFF(ex) \ (N_TXTOFF(ex) + ((ex).a_magic != ZMAGIC ? (ex).a_text : \ __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1)))) /* Symbol table offset. */ #define N_SYMOFF(ex) \ (N_TXTOFF(ex) + (ex).a_text + (ex).a_data + (ex).a_trsize + \ (ex).a_drsize) /* String table offset. */ #define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms) /* Description of the object file header (a.out format). */ struct exec { #define OMAGIC 0407 /* old impure format */ #define NMAGIC 0410 /* read-only text */ #define ZMAGIC 0413 /* demand load format */ #define QMAGIC 0314 /* demand load format. Header in text. */ unsigned int a_magic; /* magic number */ unsigned int a_text; /* text segment size */ unsigned int a_data; /* initialized data size */ unsigned int a_bss; /* uninitialized data size */ unsigned int a_syms; /* symbol table size */ unsigned int a_entry; /* entry point */ unsigned int a_trsize; /* text relocation size */ unsigned int a_drsize; /* data relocation size */ }; #endif /* BSD_KERNEL_PRIVATE */ #endif /* _BSD_PPC_EXEC_H_ */