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 #ifdef __BIG_ENDIAN__ 12 #define COMPAT_UTS_MACHINE "ppc\0\0" 13 #else 14 #define COMPAT_UTS_MACHINE "ppcle\0\0" 15 #endif 16 17 typedef u32 compat_size_t; 18 typedef s32 compat_ssize_t; 19 typedef s32 compat_time_t; 20 typedef s32 compat_clock_t; 21 typedef s32 compat_pid_t; 22 typedef u32 __compat_uid_t; 23 typedef u32 __compat_gid_t; 24 typedef u32 __compat_uid32_t; 25 typedef u32 __compat_gid32_t; 26 typedef u32 compat_mode_t; 27 typedef u32 compat_ino_t; 28 typedef u32 compat_dev_t; 29 typedef s32 compat_off_t; 30 typedef s64 compat_loff_t; 31 typedef s16 compat_nlink_t; 32 typedef u16 compat_ipc_pid_t; 33 typedef s32 compat_daddr_t; 34 typedef u32 compat_caddr_t; 35 typedef __kernel_fsid_t compat_fsid_t; 36 typedef s32 compat_key_t; 37 typedef s32 compat_timer_t; 38 39 typedef s32 compat_int_t; 40 typedef s32 compat_long_t; 41 typedef s64 compat_s64; 42 typedef u32 compat_uint_t; 43 typedef u32 compat_ulong_t; 44 typedef u64 compat_u64; 45 typedef u32 compat_uptr_t; 46 47 struct compat_timespec { 48 compat_time_t tv_sec; 49 s32 tv_nsec; 50 }; 51 52 struct compat_timeval { 53 compat_time_t tv_sec; 54 s32 tv_usec; 55 }; 56 57 struct compat_stat { 58 compat_dev_t st_dev; 59 compat_ino_t st_ino; 60 compat_mode_t st_mode; 61 compat_nlink_t st_nlink; 62 __compat_uid32_t st_uid; 63 __compat_gid32_t st_gid; 64 compat_dev_t st_rdev; 65 compat_off_t st_size; 66 compat_off_t st_blksize; 67 compat_off_t st_blocks; 68 compat_time_t st_atime; 69 u32 st_atime_nsec; 70 compat_time_t st_mtime; 71 u32 st_mtime_nsec; 72 compat_time_t st_ctime; 73 u32 st_ctime_nsec; 74 u32 __unused4[2]; 75 }; 76 77 struct compat_flock { 78 short l_type; 79 short l_whence; 80 compat_off_t l_start; 81 compat_off_t l_len; 82 compat_pid_t l_pid; 83 }; 84 85 #define F_GETLK64 12 /* using 'struct flock64' */ 86 #define F_SETLK64 13 87 #define F_SETLKW64 14 88 89 struct compat_flock64 { 90 short l_type; 91 short l_whence; 92 compat_loff_t l_start; 93 compat_loff_t l_len; 94 compat_pid_t l_pid; 95 }; 96 97 struct compat_statfs { 98 int f_type; 99 int f_bsize; 100 int f_blocks; 101 int f_bfree; 102 int f_bavail; 103 int f_files; 104 int f_ffree; 105 compat_fsid_t f_fsid; 106 int f_namelen; /* SunOS ignores this field. */ 107 int f_frsize; 108 int f_flags; 109 int f_spare[4]; 110 }; 111 112 #define COMPAT_RLIM_INFINITY 0xffffffff 113 114 typedef u32 compat_old_sigset_t; 115 116 #define _COMPAT_NSIG 64 117 #define _COMPAT_NSIG_BPW 32 118 119 typedef u32 compat_sigset_word; 120 121 typedef union compat_sigval { 122 compat_int_t sival_int; 123 compat_uptr_t sival_ptr; 124 } compat_sigval_t; 125 126 #define SI_PAD_SIZE32 (128/sizeof(int) - 3) 127 128 typedef struct compat_siginfo { 129 int si_signo; 130 int si_errno; 131 int si_code; 132 133 union { 134 int _pad[SI_PAD_SIZE32]; 135 136 /* kill() */ 137 struct { 138 compat_pid_t _pid; /* sender's pid */ 139 __compat_uid_t _uid; /* sender's uid */ 140 } _kill; 141 142 /* POSIX.1b timers */ 143 struct { 144 compat_timer_t _tid; /* timer id */ 145 int _overrun; /* overrun count */ 146 compat_sigval_t _sigval; /* same as below */ 147 int _sys_private; /* not to be passed to user */ 148 } _timer; 149 150 /* POSIX.1b signals */ 151 struct { 152 compat_pid_t _pid; /* sender's pid */ 153 __compat_uid_t _uid; /* sender's uid */ 154 compat_sigval_t _sigval; 155 } _rt; 156 157 /* SIGCHLD */ 158 struct { 159 compat_pid_t _pid; /* which child */ 160 __compat_uid_t _uid; /* sender's uid */ 161 int _status; /* exit code */ 162 compat_clock_t _utime; 163 compat_clock_t _stime; 164 } _sigchld; 165 166 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGEMT */ 167 struct { 168 unsigned int _addr; /* faulting insn/memory ref. */ 169 } _sigfault; 170 171 /* SIGPOLL */ 172 struct { 173 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ 174 int _fd; 175 } _sigpoll; 176 177 /* SIGSYS */ 178 struct { 179 unsigned int _call_addr; /* calling insn */ 180 int _syscall; /* triggering system call number */ 181 unsigned int _arch; /* AUDIT_ARCH_* of syscall */ 182 } _sigsys; 183 } _sifields; 184 } compat_siginfo_t; 185 186 #define COMPAT_OFF_T_MAX 0x7fffffff 187 #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 188 189 /* 190 * A pointer passed in from user mode. This should not 191 * be used for syscall parameters, just declare them 192 * as pointers because the syscall entry code will have 193 * appropriately converted them already. 194 */ 195 196 static inline void __user *compat_ptr(compat_uptr_t uptr) 197 { 198 return (void __user *)(unsigned long)uptr; 199 } 200 201 static inline compat_uptr_t ptr_to_compat(void __user *uptr) 202 { 203 return (u32)(unsigned long)uptr; 204 } 205 206 static inline void __user *arch_compat_alloc_user_space(long len) 207 { 208 struct pt_regs *regs = current->thread.regs; 209 unsigned long usp = regs->gpr[1]; 210 211 /* 212 * We can't access below the stack pointer in the 32bit ABI and 213 * can access 288 bytes in the 64bit big-endian ABI, 214 * or 512 bytes with the new ELFv2 little-endian ABI. 215 */ 216 if (!is_32bit_task()) 217 usp -= USER_REDZONE_SIZE; 218 219 return (void __user *) (usp - len); 220 } 221 222 /* 223 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to 224 * it we may as well define it. 225 */ 226 struct compat_ipc64_perm { 227 compat_key_t key; 228 __compat_uid_t uid; 229 __compat_gid_t gid; 230 __compat_uid_t cuid; 231 __compat_gid_t cgid; 232 compat_mode_t mode; 233 unsigned int seq; 234 unsigned int __pad2; 235 unsigned long __unused1; /* yes they really are 64bit pads */ 236 unsigned long __unused2; 237 }; 238 239 struct compat_semid64_ds { 240 struct compat_ipc64_perm sem_perm; 241 unsigned int __unused1; 242 compat_time_t sem_otime; 243 unsigned int __unused2; 244 compat_time_t sem_ctime; 245 compat_ulong_t sem_nsems; 246 compat_ulong_t __unused3; 247 compat_ulong_t __unused4; 248 }; 249 250 struct compat_msqid64_ds { 251 struct compat_ipc64_perm msg_perm; 252 unsigned int __unused1; 253 compat_time_t msg_stime; 254 unsigned int __unused2; 255 compat_time_t msg_rtime; 256 unsigned int __unused3; 257 compat_time_t msg_ctime; 258 compat_ulong_t msg_cbytes; 259 compat_ulong_t msg_qnum; 260 compat_ulong_t msg_qbytes; 261 compat_pid_t msg_lspid; 262 compat_pid_t msg_lrpid; 263 compat_ulong_t __unused4; 264 compat_ulong_t __unused5; 265 }; 266 267 struct compat_shmid64_ds { 268 struct compat_ipc64_perm shm_perm; 269 unsigned int __unused1; 270 compat_time_t shm_atime; 271 unsigned int __unused2; 272 compat_time_t shm_dtime; 273 unsigned int __unused3; 274 compat_time_t shm_ctime; 275 unsigned int __unused4; 276 compat_size_t shm_segsz; 277 compat_pid_t shm_cpid; 278 compat_pid_t shm_lpid; 279 compat_ulong_t shm_nattch; 280 compat_ulong_t __unused5; 281 compat_ulong_t __unused6; 282 }; 283 284 static inline int is_compat_task(void) 285 { 286 return is_32bit_task(); 287 } 288 289 #endif /* __KERNEL__ */ 290 #endif /* _ASM_POWERPC_COMPAT_H */ 291