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 17typedef u32 compat_size_t; 18typedef s32 compat_ssize_t; 19typedef s32 compat_time_t; 20typedef s32 compat_clock_t; 21typedef s32 compat_pid_t; 22typedef u32 __compat_uid_t; 23typedef u32 __compat_gid_t; 24typedef u32 __compat_uid32_t; 25typedef u32 __compat_gid32_t; 26typedef u32 compat_mode_t; 27typedef u32 compat_ino_t; 28typedef u32 compat_dev_t; 29typedef s32 compat_off_t; 30typedef s64 compat_loff_t; 31typedef s16 compat_nlink_t; 32typedef u16 compat_ipc_pid_t; 33typedef s32 compat_daddr_t; 34typedef u32 compat_caddr_t; 35typedef __kernel_fsid_t compat_fsid_t; 36typedef s32 compat_key_t; 37typedef s32 compat_timer_t; 38 39typedef s32 compat_int_t; 40typedef s32 compat_long_t; 41typedef s64 compat_s64; 42typedef u32 compat_uint_t; 43typedef u32 compat_ulong_t; 44typedef u64 compat_u64; 45typedef u32 compat_uptr_t; 46 47struct compat_timespec { 48 compat_time_t tv_sec; 49 s32 tv_nsec; 50}; 51 52struct compat_timeval { 53 compat_time_t tv_sec; 54 s32 tv_usec; 55}; 56 57struct 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 77struct 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 89struct 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 97struct 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 115typedef u32 compat_old_sigset_t; 116 117#define _COMPAT_NSIG 64 118#define _COMPAT_NSIG_BPW 32 119 120typedef u32 compat_sigset_word; 121 122typedef 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 129typedef 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 } _sifields; 178} compat_siginfo_t; 179 180#define COMPAT_OFF_T_MAX 0x7fffffff 181#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 182 183/* 184 * A pointer passed in from user mode. This should not 185 * be used for syscall parameters, just declare them 186 * as pointers because the syscall entry code will have 187 * appropriately converted them already. 188 */ 189 190static inline void __user *compat_ptr(compat_uptr_t uptr) 191{ 192 return (void __user *)(unsigned long)uptr; 193} 194 195static inline compat_uptr_t ptr_to_compat(void __user *uptr) 196{ 197 return (u32)(unsigned long)uptr; 198} 199 200static inline void __user *arch_compat_alloc_user_space(long len) 201{ 202 struct pt_regs *regs = current->thread.regs; 203 unsigned long usp = regs->gpr[1]; 204 205 /* 206 * We can't access below the stack pointer in the 32bit ABI and 207 * can access 288 bytes in the 64bit big-endian ABI, 208 * or 512 bytes with the new ELFv2 little-endian ABI. 209 */ 210 if (!is_32bit_task()) 211 usp -= USER_REDZONE_SIZE; 212 213 return (void __user *) (usp - len); 214} 215 216/* 217 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to 218 * it we may as well define it. 219 */ 220struct compat_ipc64_perm { 221 compat_key_t key; 222 __compat_uid_t uid; 223 __compat_gid_t gid; 224 __compat_uid_t cuid; 225 __compat_gid_t cgid; 226 compat_mode_t mode; 227 unsigned int seq; 228 unsigned int __pad2; 229 unsigned long __unused1; /* yes they really are 64bit pads */ 230 unsigned long __unused2; 231}; 232 233struct compat_semid64_ds { 234 struct compat_ipc64_perm sem_perm; 235 unsigned int __unused1; 236 compat_time_t sem_otime; 237 unsigned int __unused2; 238 compat_time_t sem_ctime; 239 compat_ulong_t sem_nsems; 240 compat_ulong_t __unused3; 241 compat_ulong_t __unused4; 242}; 243 244struct compat_msqid64_ds { 245 struct compat_ipc64_perm msg_perm; 246 unsigned int __unused1; 247 compat_time_t msg_stime; 248 unsigned int __unused2; 249 compat_time_t msg_rtime; 250 unsigned int __unused3; 251 compat_time_t msg_ctime; 252 compat_ulong_t msg_cbytes; 253 compat_ulong_t msg_qnum; 254 compat_ulong_t msg_qbytes; 255 compat_pid_t msg_lspid; 256 compat_pid_t msg_lrpid; 257 compat_ulong_t __unused4; 258 compat_ulong_t __unused5; 259}; 260 261struct compat_shmid64_ds { 262 struct compat_ipc64_perm shm_perm; 263 unsigned int __unused1; 264 compat_time_t shm_atime; 265 unsigned int __unused2; 266 compat_time_t shm_dtime; 267 unsigned int __unused3; 268 compat_time_t shm_ctime; 269 unsigned int __unused4; 270 compat_size_t shm_segsz; 271 compat_pid_t shm_cpid; 272 compat_pid_t shm_lpid; 273 compat_ulong_t shm_nattch; 274 compat_ulong_t __unused5; 275 compat_ulong_t __unused6; 276}; 277 278static inline int is_compat_task(void) 279{ 280 return is_32bit_task(); 281} 282 283#endif /* __KERNEL__ */ 284#endif /* _ASM_POWERPC_COMPAT_H */ 285