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/*
* Copyright (c) 2000-2005 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@
*/
/*
*
* File: mach/shared_memory_server.h
*
* protos and struct definitions for shared library
* server and interface
*/
#ifndef _MACH_SHARED_MEMORY_SERVER_H_
#define _MACH_SHARED_MEMORY_SERVER_H_
#include <sys/cdefs.h>
#include <mach/vm_prot.h>
#include <mach/vm_types.h>
#include <mach/mach_types.h>
#define VM_PROT_COW 0x8 /* must not interfere with normal prot assignments */
#define VM_PROT_ZF 0x10 /* must not interfere with normal prot assignments */
#if !defined(__LP64__)
#define SHARED_LIBRARY_SERVER_SUPPORTED
#define GLOBAL_SHARED_TEXT_SEGMENT 0x90000000
#define GLOBAL_SHARED_DATA_SEGMENT 0xA0000000
#define GLOBAL_SHARED_SEGMENT_MASK 0xF0000000
#define SHARED_TEXT_REGION_SIZE 0x10000000
#define SHARED_DATA_REGION_SIZE 0x10000000
#define SHARED_ALTERNATE_LOAD_BASE 0x09000000
/*
* Note: the two masks below are useful because the assumption is
* made that these shared regions will always be mapped on natural boundaries
* i.e. if the size is 0x10000000 the object can be mapped at
* 0x20000000, or 0x30000000, but not 0x1000000
*/
#define SHARED_TEXT_REGION_MASK 0x0FFFFFFF
#define SHARED_DATA_REGION_MASK 0x0FFFFFFF
#define SHARED_LIB_ALIAS 0x10
/* flags field aliases for copyin_shared_file and load_shared_file */
/* IN */
#define ALTERNATE_LOAD_SITE 0x1
#define NEW_LOCAL_SHARED_REGIONS 0x2
#define QUERY_IS_SYSTEM_REGION 0x4
/* OUT */
#define SF_PREV_LOADED 0x1
#define SYSTEM_REGION_BACKED 0x2
struct sf_mapping {
vm_offset_t mapping_offset;
vm_size_t size;
vm_offset_t file_offset;
vm_prot_t protection; /* read/write/execute/COW/ZF */
vm_offset_t cksum;
};
typedef struct sf_mapping sf_mapping_t;
#ifndef KERNEL
/* load_shared_file and friends is deprecated */
__BEGIN_DECLS
int load_shared_file(char *, caddr_t, u_long,
caddr_t *, int, sf_mapping_t *, int *);
int reset_shared_file(caddr_t *, int, sf_mapping_t *);
int new_system_shared_regions(void);
__END_DECLS
#endif /* !KERNEL */
#endif /* !defined(__LP64__) */
/*
* All shared_region_* declarations are a private interface
* between dyld and the kernel.
*
*/
struct shared_file_mapping_np {
mach_vm_address_t sfm_address;
mach_vm_size_t sfm_size;
mach_vm_offset_t sfm_file_offset;
vm_prot_t sfm_max_prot;
vm_prot_t sfm_init_prot;
};
struct shared_region_range_np {
mach_vm_address_t srr_address;
mach_vm_size_t srr_size;
};
#ifndef KERNEL
__BEGIN_DECLS
int shared_region_map_file_np(int fd,
uint32_t mappingCount,
const struct shared_file_mapping_np *mappings,
int64_t *slide_p);
int shared_region_make_private_np(uint32_t rangeCount,
const struct shared_region_range_np *ranges);
__END_DECLS
#endif /* !KERNEL */
#endif /* _MACH_SHARED_MEMORY_SERVER_H_ */