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_OLD_INFINITY 0x7fffffff 113 #define COMPAT_RLIM_INFINITY 0xffffffff 114 115 typedef u32 compat_old_sigset_t; 116 117 #define _COMPAT_NSIG 64 118 #define _COMPAT_NSIG_BPW 32 119 120 typedef u32 compat_sigset_word; 121 122 typedef union compat_sigval { 123 compat_int_t sival_int; 124 compat_uptr_t sival_ptr; 125 } compat_sigval_t; 126 127 #define SI_PAD_SIZE32 (128/sizeof(int) - 3) 128 129 typedef struct compat_siginfo { 130 int si_signo; 131 int si_errno; 132 int si_code; 133 134 union { 135 int _pad[SI_PAD_SIZE32]; 136 137 /* kill() */ 138 struct { 139 compat_pid_t _pid; /* sender's pid */ 140 __compat_uid_t _uid; /* sender's uid */ 141 } _kill; 142 143 /* POSIX.1b timers */ 144 struct { 145 compat_timer_t _tid; /* timer id */ 146 int _overrun; /* overrun count */ 147 compat_sigval_t _sigval; /* same as below */ 148 int _sys_private; /* not to be passed to user */ 149 } _timer; 150 151 /* POSIX.1b signals */ 152 struct { 153 compat_pid_t _pid; /* sender's pid */ 154 __compat_uid_t _uid; /* sender's uid */ 155 compat_sigval_t _sigval; 156 } _rt; 157 158 /* SIGCHLD */ 159 struct { 160 compat_pid_t _pid; /* which child */ 161 __compat_uid_t _uid; /* sender's uid */ 162 int _status; /* exit code */ 163 compat_clock_t _utime; 164 compat_clock_t _stime; 165 } _sigchld; 166 167 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGEMT */ 168 struct { 169 unsigned int _addr; /* faulting insn/memory ref. */ 170 } _sigfault; 171 172 /* SIGPOLL */ 173 struct { 174 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ 175 int _fd; 176 } _sigpoll; 177 178 /* SIGSYS */ 179 struct { 180 unsigned int _call_addr; /* calling insn */ 181 int _syscall; /* triggering system call number */ 182 unsigned int _arch; /* AUDIT_ARCH_* of syscall */ 183 } _sigsys; 184 } _sifields; 185 } compat_siginfo_t; 186 187 #define COMPAT_OFF_T_MAX 0x7fffffff 188 #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 189 190 /* 191 * A pointer passed in from user mode. This should not 192 * be used for syscall parameters, just declare them 193 * as pointers because the syscall entry code will have 194 * appropriately converted them already. 195 */ 196 197 static inline void __user *compat_ptr(compat_uptr_t uptr) 198 { 199 return (void __user *)(unsigned long)uptr; 200 } 201 202 static inline compat_uptr_t ptr_to_compat(void __user *uptr) 203 { 204 return (u32)(unsigned long)uptr; 205 } 206 207 static inline void __user *arch_compat_alloc_user_space(long len) 208 { 209 struct pt_regs *regs = current->thread.regs; 210 unsigned long usp = regs->gpr[1]; 211 212 /* 213 * We can't access below the stack pointer in the 32bit ABI and 214 * can access 288 bytes in the 64bit big-endian ABI, 215 * or 512 bytes with the new ELFv2 little-endian ABI. 216 */ 217 if (!is_32bit_task()) 218 usp -= USER_REDZONE_SIZE; 219 220 return (void __user *) (usp - len); 221 } 222 223 /* 224 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to 225 * it we may as well define it. 226 */ 227 struct compat_ipc64_perm { 228 compat_key_t key; 229 __compat_uid_t uid; 230 __compat_gid_t gid; 231 __compat_uid_t cuid; 232 __compat_gid_t cgid; 233 compat_mode_t mode; 234 unsigned int seq; 235 unsigned int __pad2; 236 unsigned long __unused1; /* yes they really are 64bit pads */ 237 unsigned long __unused2; 238 }; 239 240 struct compat_semid64_ds { 241 struct compat_ipc64_perm sem_perm; 242 unsigned int __unused1; 243 compat_time_t sem_otime; 244 unsigned int __unused2; 245 compat_time_t sem_ctime; 246 compat_ulong_t sem_nsems; 247 compat_ulong_t __unused3; 248 compat_ulong_t __unused4; 249 }; 250 251 struct compat_msqid64_ds { 252 struct compat_ipc64_perm msg_perm; 253 unsigned int __unused1; 254 compat_time_t msg_stime; 255 unsigned int __unused2; 256 compat_time_t msg_rtime; 257 unsigned int __unused3; 258 compat_time_t msg_ctime; 259 compat_ulong_t msg_cbytes; 260 compat_ulong_t msg_qnum; 261 compat_ulong_t msg_qbytes; 262 compat_pid_t msg_lspid; 263 compat_pid_t msg_lrpid; 264 compat_ulong_t __unused4; 265 compat_ulong_t __unused5; 266 }; 267 268 struct compat_shmid64_ds { 269 struct compat_ipc64_perm shm_perm; 270 unsigned int __unused1; 271 compat_time_t shm_atime; 272 unsigned int __unused2; 273 compat_time_t shm_dtime; 274 unsigned int __unused3; 275 compat_time_t shm_ctime; 276 unsigned int __unused4; 277 compat_size_t shm_segsz; 278 compat_pid_t shm_cpid; 279 compat_pid_t shm_lpid; 280 compat_ulong_t shm_nattch; 281 compat_ulong_t __unused5; 282 compat_ulong_t __unused6; 283 }; 284 285 static inline int is_compat_task(void) 286 { 287 return is_32bit_task(); 288 } 289 290 #endif /* __KERNEL__ */ 291 #endif /* _ASM_POWERPC_COMPAT_H */ 292