1 #ifndef _ASM_POWERPC_COMPAT_H 2 #define _ASM_POWERPC_COMPAT_H 3 #ifdef __KERNEL__ 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 #define COMPAT_UTS_MACHINE "ppc\0\0" 12 13 typedef u32 compat_size_t; 14 typedef s32 compat_ssize_t; 15 typedef s32 compat_time_t; 16 typedef s32 compat_clock_t; 17 typedef s32 compat_pid_t; 18 typedef u32 __compat_uid_t; 19 typedef u32 __compat_gid_t; 20 typedef u32 __compat_uid32_t; 21 typedef u32 __compat_gid32_t; 22 typedef u32 compat_mode_t; 23 typedef u32 compat_ino_t; 24 typedef u32 compat_dev_t; 25 typedef s32 compat_off_t; 26 typedef s64 compat_loff_t; 27 typedef s16 compat_nlink_t; 28 typedef u16 compat_ipc_pid_t; 29 typedef s32 compat_daddr_t; 30 typedef u32 compat_caddr_t; 31 typedef __kernel_fsid_t compat_fsid_t; 32 typedef s32 compat_key_t; 33 typedef s32 compat_timer_t; 34 35 typedef s32 compat_int_t; 36 typedef s32 compat_long_t; 37 typedef s64 compat_s64; 38 typedef u32 compat_uint_t; 39 typedef u32 compat_ulong_t; 40 typedef u64 compat_u64; 41 typedef u32 compat_uptr_t; 42 43 struct compat_timespec { 44 compat_time_t tv_sec; 45 s32 tv_nsec; 46 }; 47 48 struct compat_timeval { 49 compat_time_t tv_sec; 50 s32 tv_usec; 51 }; 52 53 struct compat_stat { 54 compat_dev_t st_dev; 55 compat_ino_t st_ino; 56 compat_mode_t st_mode; 57 compat_nlink_t st_nlink; 58 __compat_uid32_t st_uid; 59 __compat_gid32_t st_gid; 60 compat_dev_t st_rdev; 61 compat_off_t st_size; 62 compat_off_t st_blksize; 63 compat_off_t st_blocks; 64 compat_time_t st_atime; 65 u32 st_atime_nsec; 66 compat_time_t st_mtime; 67 u32 st_mtime_nsec; 68 compat_time_t st_ctime; 69 u32 st_ctime_nsec; 70 u32 __unused4[2]; 71 }; 72 73 struct compat_flock { 74 short l_type; 75 short l_whence; 76 compat_off_t l_start; 77 compat_off_t l_len; 78 compat_pid_t l_pid; 79 }; 80 81 #define F_GETLK64 12 /* using 'struct flock64' */ 82 #define F_SETLK64 13 83 #define F_SETLKW64 14 84 85 struct compat_flock64 { 86 short l_type; 87 short l_whence; 88 compat_loff_t l_start; 89 compat_loff_t l_len; 90 compat_pid_t l_pid; 91 }; 92 93 struct compat_statfs { 94 int f_type; 95 int f_bsize; 96 int f_blocks; 97 int f_bfree; 98 int f_bavail; 99 int f_files; 100 int f_ffree; 101 compat_fsid_t f_fsid; 102 int f_namelen; /* SunOS ignores this field. */ 103 int f_frsize; 104 int f_flags; 105 int f_spare[4]; 106 }; 107 108 #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff 109 #define COMPAT_RLIM_INFINITY 0xffffffff 110 111 typedef u32 compat_old_sigset_t; 112 113 #define _COMPAT_NSIG 64 114 #define _COMPAT_NSIG_BPW 32 115 116 typedef u32 compat_sigset_word; 117 118 typedef union compat_sigval { 119 compat_int_t sival_int; 120 compat_uptr_t sival_ptr; 121 } compat_sigval_t; 122 123 #define SI_PAD_SIZE32 (128/sizeof(int) - 3) 124 125 typedef struct compat_siginfo { 126 int si_signo; 127 int si_errno; 128 int si_code; 129 130 union { 131 int _pad[SI_PAD_SIZE32]; 132 133 /* kill() */ 134 struct { 135 compat_pid_t _pid; /* sender's pid */ 136 __compat_uid_t _uid; /* sender's uid */ 137 } _kill; 138 139 /* POSIX.1b timers */ 140 struct { 141 compat_timer_t _tid; /* timer id */ 142 int _overrun; /* overrun count */ 143 compat_sigval_t _sigval; /* same as below */ 144 int _sys_private; /* not to be passed to user */ 145 } _timer; 146 147 /* POSIX.1b signals */ 148 struct { 149 compat_pid_t _pid; /* sender's pid */ 150 __compat_uid_t _uid; /* sender's uid */ 151 compat_sigval_t _sigval; 152 } _rt; 153 154 /* SIGCHLD */ 155 struct { 156 compat_pid_t _pid; /* which child */ 157 __compat_uid_t _uid; /* sender's uid */ 158 int _status; /* exit code */ 159 compat_clock_t _utime; 160 compat_clock_t _stime; 161 } _sigchld; 162 163 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGEMT */ 164 struct { 165 unsigned int _addr; /* faulting insn/memory ref. */ 166 } _sigfault; 167 168 /* SIGPOLL */ 169 struct { 170 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ 171 int _fd; 172 } _sigpoll; 173 } _sifields; 174 } compat_siginfo_t; 175 176 #define COMPAT_OFF_T_MAX 0x7fffffff 177 #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 178 179 /* 180 * A pointer passed in from user mode. This should not 181 * be used for syscall parameters, just declare them 182 * as pointers because the syscall entry code will have 183 * appropriately converted them already. 184 */ 185 186 static inline void __user *compat_ptr(compat_uptr_t uptr) 187 { 188 return (void __user *)(unsigned long)uptr; 189 } 190 191 static inline compat_uptr_t ptr_to_compat(void __user *uptr) 192 { 193 return (u32)(unsigned long)uptr; 194 } 195 196 static inline void __user *arch_compat_alloc_user_space(long len) 197 { 198 struct pt_regs *regs = current->thread.regs; 199 unsigned long usp = regs->gpr[1]; 200 201 /* 202 * We can't access below the stack pointer in the 32bit ABI and 203 * can access 288 bytes in the 64bit big-endian ABI, 204 * or 512 bytes with the new ELFv2 little-endian ABI. 205 */ 206 if (!is_32bit_task()) 207 usp -= USER_REDZONE_SIZE; 208 209 return (void __user *) (usp - len); 210 } 211 212 /* 213 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to 214 * it we may as well define it. 215 */ 216 struct compat_ipc64_perm { 217 compat_key_t key; 218 __compat_uid_t uid; 219 __compat_gid_t gid; 220 __compat_uid_t cuid; 221 __compat_gid_t cgid; 222 compat_mode_t mode; 223 unsigned int seq; 224 unsigned int __pad2; 225 unsigned long __unused1; /* yes they really are 64bit pads */ 226 unsigned long __unused2; 227 }; 228 229 struct compat_semid64_ds { 230 struct compat_ipc64_perm sem_perm; 231 unsigned int __unused1; 232 compat_time_t sem_otime; 233 unsigned int __unused2; 234 compat_time_t sem_ctime; 235 compat_ulong_t sem_nsems; 236 compat_ulong_t __unused3; 237 compat_ulong_t __unused4; 238 }; 239 240 struct compat_msqid64_ds { 241 struct compat_ipc64_perm msg_perm; 242 unsigned int __unused1; 243 compat_time_t msg_stime; 244 unsigned int __unused2; 245 compat_time_t msg_rtime; 246 unsigned int __unused3; 247 compat_time_t msg_ctime; 248 compat_ulong_t msg_cbytes; 249 compat_ulong_t msg_qnum; 250 compat_ulong_t msg_qbytes; 251 compat_pid_t msg_lspid; 252 compat_pid_t msg_lrpid; 253 compat_ulong_t __unused4; 254 compat_ulong_t __unused5; 255 }; 256 257 struct compat_shmid64_ds { 258 struct compat_ipc64_perm shm_perm; 259 unsigned int __unused1; 260 compat_time_t shm_atime; 261 unsigned int __unused2; 262 compat_time_t shm_dtime; 263 unsigned int __unused3; 264 compat_time_t shm_ctime; 265 unsigned int __unused4; 266 compat_size_t shm_segsz; 267 compat_pid_t shm_cpid; 268 compat_pid_t shm_lpid; 269 compat_ulong_t shm_nattch; 270 compat_ulong_t __unused5; 271 compat_ulong_t __unused6; 272 }; 273 274 static inline int is_compat_task(void) 275 { 276 return is_32bit_task(); 277 } 278 279 #endif /* __KERNEL__ */ 280 #endif /* _ASM_POWERPC_COMPAT_H */ 281