X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/1c79356b52d46aa6b508fb032f5ae709b1f2897b..13fec9890cf095cc781fdf7b8917cb03bf32dd4c:/osfmk/mach/shared_memory_server.h?ds=sidebyside diff --git a/osfmk/mach/shared_memory_server.h b/osfmk/mach/shared_memory_server.h index 8d324489e..af2aea45c 100644 --- a/osfmk/mach/shared_memory_server.h +++ b/osfmk/mach/shared_memory_server.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * @@ -21,73 +21,42 @@ */ /* * - * 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_ +#ifndef _MACH_SHARED_MEMORY_SERVER_H_ +#define _MACH_SHARED_MEMORY_SERVER_H_ + +#include +#include +#include +#include + +#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 -#define SHARED_TEXT_REGION_SIZE 0x10000000 -#define SHARED_DATA_REGION_SIZE 0x10000000 /* * 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 0xFFFFFFF -#define SHARED_DATA_REGION_MASK 0xFFFFFFF - -#define SHARED_ALTERNATE_LOAD_BASE 0x9000000 - -#include -#ifndef MACH_KERNEL -#include -#else -#include -#endif - -#ifdef MACH_KERNEL_PRIVATE - -#include -#include - -extern ipc_port_t shared_text_region_handle; -extern ipc_port_t shared_data_region_handle; -#else /* MACH_KERNEL_PRIVATE */ - -#ifdef KERNEL_PRIVATE -extern mach_port_t shared_text_region_handle; -extern mach_port_t shared_data_region_handle; -#endif -#endif /* MACH_KERNEL_PRIVATE*/ - -#ifdef KERNEL_PRIVATE - -extern vm_offset_t shared_file_mapping_array; - - -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_TEXT_REGION_MASK 0x0FFFFFFF +#define SHARED_DATA_REGION_MASK 0x0FFFFFFF #define SHARED_LIB_ALIAS 0x10 @@ -97,17 +66,13 @@ 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; @@ -115,110 +80,49 @@ struct sf_mapping { 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 */ -#ifdef MACH_KERNEL_PRIVATE +#endif /* !defined(__LP64__) */ -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 */ +#ifndef KERNEL -typedef struct load_struct load_struct_t; -typedef struct load_struct *load_struct_ptr_t; +__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 -#ifdef MACH_KERNEL_PRIVATE - -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, - vm_object_t file_object, - 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_ */