X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/0b4e3aa066abc0728aacb4bbeb86f53f9737156e..527f99514973766e9c0382a4d8550dfb00f54939:/osfmk/mach/shared_memory_server.h diff --git a/osfmk/mach/shared_memory_server.h b/osfmk/mach/shared_memory_server.h index 2f31ef1fc..bd792319c 100644 --- a/osfmk/mach/shared_memory_server.h +++ b/osfmk/mach/shared_memory_server.h @@ -1,102 +1,95 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. + * 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. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * 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 OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * 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_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * - * File: kern/shared_memory_server.h + * File: mach/shared_memory_server.h * * protos and struct definitions for shared library * server and interface */ -#ifndef _SHARED_MEMORY_SERVER_H_ -#define _SHARED_MEMORY_SERVER_H_ - -#define SHARED_LIBRARY_SERVER_SUPPORTED -#define GLOBAL_SHARED_TEXT_SEGMENT 0x70000000 -#define GLOBAL_SHARED_DATA_SEGMENT 0x80000000 -#define GLOBAL_SHARED_SEGMENT_MASK 0xF0000000 - -#define SHARED_TEXT_REGION_SIZE 0x10000000 -#define SHARED_DATA_REGION_SIZE 0x10000000 -#define SHARED_ALTERNATE_LOAD_BASE 0x9000000 -/* - * 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 +/* + * XXX + * + * NOTE: this file is deprecated and will be removed in the near future. + * Any project that includes this file should be changed to: + * 1. use instead of this file, + * 2. handle the new shared regions, now available on more platforms */ -#define SHARED_TEXT_REGION_MASK 0xFFFFFFF -#define SHARED_DATA_REGION_MASK 0xFFFFFFF +#ifndef _MACH_SHARED_MEMORY_SERVER_H_ +#define _MACH_SHARED_MEMORY_SERVER_H_ + +#warning " is deprecated. Please use instead." +#include #include -#ifndef MACH_KERNEL -#include -#else -#include -#endif +#include +#include -#ifdef MACH_KERNEL_PRIVATE +#define VM_PROT_COW 0x8 /* must not interfere with normal prot assignments */ +#define VM_PROT_ZF 0x10 /* must not interfere with normal prot assignments */ -#include -#include -#include +#ifdef __arm__ +#define GLOBAL_SHARED_TEXT_SEGMENT 0x30000000U +#define GLOBAL_SHARED_DATA_SEGMENT 0x38000000U +#define GLOBAL_SHARED_SEGMENT_MASK 0xF8000000U -extern ipc_port_t shared_text_region_handle; -extern ipc_port_t shared_data_region_handle; -#else /* MACH_KERNEL_PRIVATE */ +#define SHARED_TEXT_REGION_SIZE 0x08000000 +#define SHARED_DATA_REGION_SIZE 0x08000000 +#else +#define GLOBAL_SHARED_TEXT_SEGMENT 0x90000000U +#define GLOBAL_SHARED_DATA_SEGMENT 0xA0000000U +#define GLOBAL_SHARED_SEGMENT_MASK 0xF0000000U -#ifdef KERNEL_PRIVATE -extern mach_port_t shared_text_region_handle; -extern mach_port_t shared_data_region_handle; +#define SHARED_TEXT_REGION_SIZE 0x10000000 +#define SHARED_DATA_REGION_SIZE 0x10000000 #endif -#endif /* MACH_KERNEL_PRIVATE*/ - -#ifdef KERNEL_PRIVATE - -extern vm_offset_t shared_file_mapping_array; +#if !defined(__LP64__) -struct shared_region_task_mappings { - ipc_port_t text_region; - vm_size_t text_size; - ipc_port_t data_region; - vm_size_t data_size; - vm_offset_t region_mappings; - vm_offset_t client_base; - vm_offset_t alternate_base; - vm_offset_t alternate_next; - int flags; - vm_offset_t self; -}; - -#define SHARED_REGION_SYSTEM 0x1 -#define SHARED_REGION_FULL 0x2 - -typedef struct shared_region_task_mappings *shared_region_task_mappings_t; -#endif /* KERNEL_PRIVATE */ +#define SHARED_LIBRARY_SERVER_SUPPORTED +#define SHARED_ALTERNATE_LOAD_BASE 0x09000000 -#define SHARED_LIB_ALIAS 0x10 +/* + * 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 + */ +#ifdef __arm__ +#define SHARED_TEXT_REGION_MASK 0x07FFFFFF +#define SHARED_DATA_REGION_MASK 0x07FFFFFF +#else +#define SHARED_TEXT_REGION_MASK 0x0FFFFFFF +#define SHARED_DATA_REGION_MASK 0x0FFFFFFF +#endif /* flags field aliases for copyin_shared_file and load_shared_file */ @@ -104,17 +97,13 @@ typedef struct shared_region_task_mappings *shared_region_task_mappings_t; /* 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 -#define load_file_hash(file_object, size) \ - ((((natural_t)file_object) & 0xffffff) % size) - -#define VM_PROT_COW 0x8 /* must not interfere with normal prot assignments */ -#define VM_PROT_ZF 0x10 /* must not interfere with normal prot assignments */ - struct sf_mapping { vm_offset_t mapping_offset; vm_size_t size; @@ -122,110 +111,39 @@ struct sf_mapping { vm_prot_t protection; /* read/write/execute/COW/ZF */ vm_offset_t cksum; }; - typedef struct sf_mapping sf_mapping_t; +#endif /* !defined(__LP64__) */ -#ifdef MACH_KERNEL_PRIVATE - -struct loaded_mapping { - vm_offset_t mapping_offset; - vm_size_t size; - vm_offset_t file_offset; - vm_prot_t protection; /* read/write/execute/COW/ZF */ - - struct loaded_mapping *next; +/* + * 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; }; -typedef struct loaded_mapping loaded_mapping_t; - -struct load_struct { - queue_chain_t links; - shared_region_mapping_t regions_instance; - int depth; - int file_object; - vm_offset_t base_address; - int mapping_cnt; - loaded_mapping_t *mappings; +struct shared_region_range_np { + mach_vm_address_t srr_address; + mach_vm_size_t srr_size; }; -#endif /* MACH_KERNEL_PRIVATE */ - -typedef struct load_struct load_struct_t; -typedef struct load_struct *load_struct_ptr_t; +#ifndef KERNEL -#ifdef MACH_KERNEL_PRIVATE +__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 -struct load_file_ele { - union { - sf_mapping_t mapping; - load_struct_t element; - } u; -}; - -struct shared_file_info { - mutex_t lock; /* lock for the structure */ - queue_head_t *hash; /* for later perf enhance */ - int hash_size; - boolean_t hash_init; -}; +#endif /* !KERNEL */ -typedef struct shared_file_info shared_file_info_t; - -extern kern_return_t -copyin_shared_file( - vm_offset_t mapped_file, - vm_size_t mapped_file_size, - vm_offset_t *base_address, - int map_cnt, - sf_mapping_t *mappings, - memory_object_control_t file_control, - shared_region_task_mappings_t shared_region, - int *flags); - -extern kern_return_t -shared_file_init( - ipc_port_t *shared_text_region_handle, - vm_size_t text_region_size, - ipc_port_t *shared_data_region_handle, - vm_size_t data_region_size, - vm_offset_t *shared_file_mapping_array); - -extern load_struct_t * -lsf_hash_lookup( - queue_head_t *hash_table, - void *file_object, - int size, - boolean_t alternate, - shared_region_task_mappings_t sm_info); - -extern load_struct_t * -lsf_hash_delete( - void *file_object, - vm_offset_t base_offset, - shared_region_task_mappings_t sm_info); - -extern void -lsf_hash_insert( - load_struct_t *entry, - shared_region_task_mappings_t sm_info); - -extern kern_return_t -lsf_load( - vm_offset_t mapped_file, - vm_size_t mapped_file_size, - vm_offset_t *base_address, - sf_mapping_t *mappings, - int map_cnt, - void *file_object, - int flags, - shared_region_task_mappings_t sm_info); - -extern void -lsf_unload( - void *file_object, - vm_offset_t base_offset, - shared_region_task_mappings_t sm_info); - -#endif /* MACH_KERNEL_PRIVATE */ -#endif /* _SHARED_MEMORY_SERVER_H_ */ +#endif /* _MACH_SHARED_MEMORY_SERVER_H_ */