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 13typedef u32 compat_size_t; 14typedef s32 compat_ssize_t; 15typedef s32 compat_time_t; 16typedef s32 compat_clock_t; 17typedef s32 compat_pid_t; 18typedef u32 __compat_uid_t; 19typedef u32 __compat_gid_t; 20typedef u32 __compat_uid32_t; 21typedef u32 __compat_gid32_t; 22typedef u32 compat_mode_t; 23typedef u32 compat_ino_t; 24typedef u32 compat_dev_t; 25typedef s32 compat_off_t; 26typedef s64 compat_loff_t; 27typedef s16 compat_nlink_t; 28typedef u16 compat_ipc_pid_t; 29typedef s32 compat_daddr_t; 30typedef u32 compat_caddr_t; 31typedef __kernel_fsid_t compat_fsid_t; 32typedef s32 compat_key_t; 33typedef s32 compat_timer_t; 34 35typedef s32 compat_int_t; 36typedef s32 compat_long_t; 37typedef s64 compat_s64; 38typedef u32 compat_uint_t; 39typedef u32 compat_ulong_t; 40typedef u64 compat_u64; 41typedef u32 compat_uptr_t; 42 43struct compat_timespec { 44 compat_time_t tv_sec; 45 s32 tv_nsec; 46}; 47 48struct compat_timeval { 49 compat_time_t tv_sec; 50 s32 tv_usec; 51}; 52 53struct 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 73struct 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 85struct 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 93struct 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 111typedef u32 compat_old_sigset_t; 112 113#define _COMPAT_NSIG 64 114#define _COMPAT_NSIG_BPW 32 115 116typedef u32 compat_sigset_word; 117 118typedef 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 125typedef 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 186static inline void __user *compat_ptr(compat_uptr_t uptr) 187{ 188 return (void __user *)(unsigned long)uptr; 189} 190 191static inline compat_uptr_t ptr_to_compat(void __user *uptr) 192{ 193 return (u32)(unsigned long)uptr; 194} 195 196static 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 ABI 204 */ 205 if (!is_32bit_task()) 206 usp -= 288; 207 208 return (void __user *) (usp - len); 209} 210 211/* 212 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to 213 * it we may as well define it. 214 */ 215struct compat_ipc64_perm { 216 compat_key_t key; 217 __compat_uid_t uid; 218 __compat_gid_t gid; 219 __compat_uid_t cuid; 220 __compat_gid_t cgid; 221 compat_mode_t mode; 222 unsigned int seq; 223 unsigned int __pad2; 224 unsigned long __unused1; /* yes they really are 64bit pads */ 225 unsigned long __unused2; 226}; 227 228struct compat_semid64_ds { 229 struct compat_ipc64_perm sem_perm; 230 unsigned int __unused1; 231 compat_time_t sem_otime; 232 unsigned int __unused2; 233 compat_time_t sem_ctime; 234 compat_ulong_t sem_nsems; 235 compat_ulong_t __unused3; 236 compat_ulong_t __unused4; 237}; 238 239struct compat_msqid64_ds { 240 struct compat_ipc64_perm msg_perm; 241 unsigned int __unused1; 242 compat_time_t msg_stime; 243 unsigned int __unused2; 244 compat_time_t msg_rtime; 245 unsigned int __unused3; 246 compat_time_t msg_ctime; 247 compat_ulong_t msg_cbytes; 248 compat_ulong_t msg_qnum; 249 compat_ulong_t msg_qbytes; 250 compat_pid_t msg_lspid; 251 compat_pid_t msg_lrpid; 252 compat_ulong_t __unused4; 253 compat_ulong_t __unused5; 254}; 255 256struct compat_shmid64_ds { 257 struct compat_ipc64_perm shm_perm; 258 unsigned int __unused1; 259 compat_time_t shm_atime; 260 unsigned int __unused2; 261 compat_time_t shm_dtime; 262 unsigned int __unused3; 263 compat_time_t shm_ctime; 264 unsigned int __unused4; 265 compat_size_t shm_segsz; 266 compat_pid_t shm_cpid; 267 compat_pid_t shm_lpid; 268 compat_ulong_t shm_nattch; 269 compat_ulong_t __unused5; 270 compat_ulong_t __unused6; 271}; 272 273static inline int is_compat_task(void) 274{ 275 return is_32bit_task(); 276} 277 278#endif /* __KERNEL__ */ 279#endif /* _ASM_POWERPC_COMPAT_H */ 280