shared_memory_server.h [plain text]
#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
#define VM_PROT_ZF 0x10
#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_MASK 0x0FFFFFFF
#define SHARED_DATA_REGION_MASK 0x0FFFFFFF
#define SHARED_LIB_ALIAS 0x10
#define ALTERNATE_LOAD_SITE 0x1
#define NEW_LOCAL_SHARED_REGIONS 0x2
#define QUERY_IS_SYSTEM_REGION 0x4
#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;
vm_offset_t cksum;
};
typedef struct sf_mapping sf_mapping_t;
#ifndef KERNEL
__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
#endif
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
#endif