/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
*/
/*
*
- * 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 <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
-#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 <mach/vm_prot.h>
-#ifndef MACH_KERNEL
-#include <mach/mach.h>
-#else
-#include <vm/vm_map.h>
-#endif
-
-#ifdef MACH_KERNEL_PRIVATE
-
-#include <kern/queue.h>
-#include <vm/vm_object.h>
-
-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
/* 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;
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_ */
projects / apple / xnu.git / blobdiff