1#ifndef _ASM_X86_64_COMPAT_H 2#define _ASM_X86_64_COMPAT_H 3 4/* 5 * Architecture specific compatibility types 6 */ 7#include <linux/types.h> 8#include <linux/sched.h> 9 10#define COMPAT_USER_HZ 100 11 12typedef u32 compat_size_t; 13typedef s32 compat_ssize_t; 14typedef s32 compat_time_t; 15typedef s32 compat_clock_t; 16typedef s32 compat_pid_t; 17typedef u16 compat_uid_t; 18typedef u16 compat_gid_t; 19typedef u32 compat_uid32_t; 20typedef u32 compat_gid32_t; 21typedef u16 compat_mode_t; 22typedef u32 compat_ino_t; 23typedef u16 compat_dev_t; 24typedef s32 compat_off_t; 25typedef s64 compat_loff_t; 26typedef u16 compat_nlink_t; 27typedef u16 compat_ipc_pid_t; 28typedef s32 compat_daddr_t; 29typedef u32 compat_caddr_t; 30typedef __kernel_fsid_t compat_fsid_t; 31typedef s32 compat_timer_t; 32typedef s32 compat_key_t; 33 34typedef s32 compat_int_t; 35typedef s32 compat_long_t; 36typedef u32 compat_uint_t; 37typedef u32 compat_ulong_t; 38 39struct compat_timespec { 40 compat_time_t tv_sec; 41 s32 tv_nsec; 42}; 43 44struct compat_timeval { 45 compat_time_t tv_sec; 46 s32 tv_usec; 47}; 48 49struct compat_stat { 50 compat_dev_t st_dev; 51 u16 __pad1; 52 compat_ino_t st_ino; 53 compat_mode_t st_mode; 54 compat_nlink_t st_nlink; 55 compat_uid_t st_uid; 56 compat_gid_t st_gid; 57 compat_dev_t st_rdev; 58 u16 __pad2; 59 u32 st_size; 60 u32 st_blksize; 61 u32 st_blocks; 62 u32 st_atime; 63 u32 st_atime_nsec; 64 u32 st_mtime; 65 u32 st_mtime_nsec; 66 u32 st_ctime; 67 u32 st_ctime_nsec; 68 u32 __unused4; 69 u32 __unused5; 70}; 71 72struct compat_flock { 73 short l_type; 74 short l_whence; 75 compat_off_t l_start; 76 compat_off_t l_len; 77 compat_pid_t l_pid; 78}; 79 80#define F_GETLK64 12 /* using 'struct flock64' */ 81#define F_SETLK64 13 82#define F_SETLKW64 14 83 84/* 85 * IA32 uses 4 byte alignment for 64 bit quantities, 86 * so we need to pack this structure. 87 */ 88struct compat_flock64 { 89 short l_type; 90 short l_whence; 91 compat_loff_t l_start; 92 compat_loff_t l_len; 93 compat_pid_t l_pid; 94} __attribute__((packed)); 95 96struct compat_statfs { 97 int f_type; 98 int f_bsize; 99 int f_blocks; 100 int f_bfree; 101 int f_bavail; 102 int f_files; 103 int f_ffree; 104 compat_fsid_t f_fsid; 105 int f_namelen; /* SunOS ignores this field. */ 106 int f_frsize; 107 int f_spare[5]; 108}; 109 110#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff 111#define COMPAT_RLIM_INFINITY 0xffffffff 112 113typedef u32 compat_old_sigset_t; /* at least 32 bits */ 114 115#define _COMPAT_NSIG 64 116#define _COMPAT_NSIG_BPW 32 117 118typedef u32 compat_sigset_word; 119 120#define COMPAT_OFF_T_MAX 0x7fffffff 121#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 122 123struct compat_ipc64_perm { 124 compat_key_t key; 125 compat_uid32_t uid; 126 compat_gid32_t gid; 127 compat_uid32_t cuid; 128 compat_gid32_t cgid; 129 unsigned short mode; 130 unsigned short __pad1; 131 unsigned short seq; 132 unsigned short __pad2; 133 compat_ulong_t unused1; 134 compat_ulong_t unused2; 135}; 136 137struct compat_semid64_ds { 138 struct compat_ipc64_perm sem_perm; 139 compat_time_t sem_otime; 140 compat_ulong_t __unused1; 141 compat_time_t sem_ctime; 142 compat_ulong_t __unused2; 143 compat_ulong_t sem_nsems; 144 compat_ulong_t __unused3; 145 compat_ulong_t __unused4; 146}; 147 148struct compat_msqid64_ds { 149 struct compat_ipc64_perm msg_perm; 150 compat_time_t msg_stime; 151 compat_ulong_t __unused1; 152 compat_time_t msg_rtime; 153 compat_ulong_t __unused2; 154 compat_time_t msg_ctime; 155 compat_ulong_t __unused3; 156 compat_ulong_t msg_cbytes; 157 compat_ulong_t msg_qnum; 158 compat_ulong_t msg_qbytes; 159 compat_pid_t msg_lspid; 160 compat_pid_t msg_lrpid; 161 compat_ulong_t __unused4; 162 compat_ulong_t __unused5; 163}; 164 165struct compat_shmid64_ds { 166 struct compat_ipc64_perm shm_perm; 167 compat_size_t shm_segsz; 168 compat_time_t shm_atime; 169 compat_ulong_t __unused1; 170 compat_time_t shm_dtime; 171 compat_ulong_t __unused2; 172 compat_time_t shm_ctime; 173 compat_ulong_t __unused3; 174 compat_pid_t shm_cpid; 175 compat_pid_t shm_lpid; 176 compat_ulong_t shm_nattch; 177 compat_ulong_t __unused4; 178 compat_ulong_t __unused5; 179}; 180 181/* 182 * A pointer passed in from user mode. This should not 183 * be used for syscall parameters, just declare them 184 * as pointers because the syscall entry code will have 185 * appropriately comverted them already. 186 */ 187typedef u32 compat_uptr_t; 188 189static inline void __user *compat_ptr(compat_uptr_t uptr) 190{ 191 return (void __user *)(unsigned long)uptr; 192} 193 194static inline compat_uptr_t ptr_to_compat(void __user *uptr) 195{ 196 return (u32)(unsigned long)uptr; 197} 198 199static __inline__ void __user *compat_alloc_user_space(long len) 200{ 201 struct pt_regs *regs = (void *)current->thread.rsp0 - sizeof(struct pt_regs); 202 return (void __user *)regs->rsp - len; 203} 204 205#endif /* _ASM_X86_64_COMPAT_H */ 206