arch/s390/kernel/compat_linux.h

   1 #ifndef _ASM_S390X_S390_H
   2 #define _ASM_S390X_S390_H
   3
   4 #include <linux/compat.h>
   5 #include <linux/socket.h>
   6 #include <linux/syscalls.h>
   7
   8 /* Macro that masks the high order bit of an 32 bit pointer and converts it*/
   9 /*       to a 64 bit pointer */
  10 #define A(__x) ((unsigned long)((__x) & 0x7FFFFFFFUL))
  11 #define AA(__x)                         \
  12         ((unsigned long)(__x))
  13
  14 /* Now 32bit compatibility types */
  15 struct ipc_kludge_32 {
  16         __u32   msgp;                           /* pointer              */
  17         __s32   msgtyp;
  18 };
  19
  20 struct old_sigaction32 {
  21        __u32                    sa_handler;     /* Really a pointer, but need to deal with 32 bits */
  22        compat_old_sigset_t      sa_mask;        /* A 32 bit mask */
  23        __u32                    sa_flags;
  24        __u32                    sa_restorer;    /* Another 32 bit pointer */
  25 };
  26
  27 typedef struct compat_siginfo {
  28         int     si_signo;
  29         int     si_errno;
  30         int     si_code;
  31
  32         union {
  33                 int _pad[((128/sizeof(int)) - 3)];
  34
  35                 /* kill() */
  36                 struct {
  37                         pid_t   _pid;   /* sender's pid */
  38                         uid_t   _uid;   /* sender's uid */
  39                 } _kill;
  40
  41                 /* POSIX.1b timers */
  42                 struct {
  43                         compat_timer_t _tid;            /* timer id */
  44                         int _overrun;           /* overrun count */
  45                         compat_sigval_t _sigval;        /* same as below */
  46                         int _sys_private;       /* not to be passed to user */
  47                 } _timer;
  48
  49                 /* POSIX.1b signals */
  50                 struct {
  51                         pid_t                   _pid;   /* sender's pid */
  52                         uid_t                   _uid;   /* sender's uid */
  53                         compat_sigval_t         _sigval;
  54                 } _rt;
  55
  56                 /* SIGCHLD */
  57                 struct {
  58                         pid_t                   _pid;   /* which child */
  59                         uid_t                   _uid;   /* sender's uid */
  60                         int                     _status;/* exit code */
  61                         compat_clock_t          _utime;
  62                         compat_clock_t          _stime;
  63                 } _sigchld;
  64
  65                 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
  66                 struct {
  67                         __u32   _addr;  /* faulting insn/memory ref. - pointer */
  68                 } _sigfault;
  69
  70                 /* SIGPOLL */
  71                 struct {
  72                         int     _band;  /* POLL_IN, POLL_OUT, POLL_MSG */
  73                         int     _fd;
  74                 } _sigpoll;
  75         } _sifields;
  76 } compat_siginfo_t;
  77
  78 /*
  79  * How these fields are to be accessed.
  80  */
  81 #define si_pid          _sifields._kill._pid
  82 #define si_uid          _sifields._kill._uid
  83 #define si_status       _sifields._sigchld._status
  84 #define si_utime        _sifields._sigchld._utime
  85 #define si_stime        _sifields._sigchld._stime
  86 #define si_value        _sifields._rt._sigval
  87 #define si_int          _sifields._rt._sigval.sival_int
  88 #define si_ptr          _sifields._rt._sigval.sival_ptr
  89 #define si_addr         _sifields._sigfault._addr
  90 #define si_band         _sifields._sigpoll._band
  91 #define si_fd           _sifields._sigpoll._fd
  92 #define si_tid          _sifields._timer._tid
  93 #define si_overrun      _sifields._timer._overrun
  94
  95 /* asm/sigcontext.h */
  96 typedef union
  97 {
  98         __u64   d;
  99         __u32   f;
 100 } freg_t32;
 101
 102 typedef struct
 103 {
 104         unsigned int    fpc;
 105         freg_t32        fprs[__NUM_FPRS];
 106 } _s390_fp_regs32;
 107
 108 typedef struct
 109 {
 110         __u32   mask;
 111         __u32   addr;
 112 } _psw_t32 __attribute__ ((aligned(8)));
 113
 114 typedef struct
 115 {
 116         _psw_t32        psw;
 117         __u32           gprs[__NUM_GPRS];
 118         __u32           acrs[__NUM_ACRS];
 119 } _s390_regs_common32;
 120
 121 typedef struct
 122 {
 123         _s390_regs_common32 regs;
 124         _s390_fp_regs32     fpregs;
 125 } _sigregs32;
 126
 127 #define _SIGCONTEXT_NSIG32      64
 128 #define _SIGCONTEXT_NSIG_BPW32  32
 129 #define __SIGNAL_FRAMESIZE32    96
 130 #define _SIGMASK_COPY_SIZE32    (sizeof(u32)*2)
 131
 132 struct sigcontext32
 133 {
 134         __u32   oldmask[_COMPAT_NSIG_WORDS];
 135         __u32   sregs;                          /* pointer */
 136 };
 137
 138 /* asm/signal.h */
 139 struct sigaction32 {
 140         __u32           sa_handler;             /* pointer */
 141         __u32           sa_flags;
 142         __u32           sa_restorer;            /* pointer */
 143         compat_sigset_t sa_mask;        /* mask last for extensibility */
 144 };
 145
 146 typedef struct {
 147         __u32                   ss_sp;          /* pointer */
 148         int                     ss_flags;
 149         compat_size_t           ss_size;
 150 } stack_t32;
 151
 152 /* asm/ucontext.h */
 153 struct ucontext32 {
 154         __u32                   uc_flags;
 155         __u32                   uc_link;        /* pointer */
 156         stack_t32               uc_stack;
 157         _sigregs32              uc_mcontext;
 158         compat_sigset_t         uc_sigmask;     /* mask last for extensibility */
 159 };
 160
 161 struct stat64_emu31;
 162 struct mmap_arg_struct_emu31;
 163 struct fadvise64_64_args;
 164 struct old_sigaction32;
 165 struct old_sigaction32;
 166
 167 long sys32_chown16(const char __user * filename, u16 user, u16 group);
 168 long sys32_lchown16(const char __user * filename, u16 user, u16 group);
 169 long sys32_fchown16(unsigned int fd, u16 user, u16 group);
 170 long sys32_setregid16(u16 rgid, u16 egid);
 171 long sys32_setgid16(u16 gid);
 172 long sys32_setreuid16(u16 ruid, u16 euid);
 173 long sys32_setuid16(u16 uid);
 174 long sys32_setresuid16(u16 ruid, u16 euid, u16 suid);
 175 long sys32_getresuid16(u16 __user *ruid, u16 __user *euid, u16 __user *suid);
 176 long sys32_setresgid16(u16 rgid, u16 egid, u16 sgid);
 177 long sys32_getresgid16(u16 __user *rgid, u16 __user *egid, u16 __user *sgid);
 178 long sys32_setfsuid16(u16 uid);
 179 long sys32_setfsgid16(u16 gid);
 180 long sys32_getgroups16(int gidsetsize, u16 __user *grouplist);
 181 long sys32_setgroups16(int gidsetsize, u16 __user *grouplist);
 182 long sys32_getuid16(void);
 183 long sys32_geteuid16(void);
 184 long sys32_getgid16(void);
 185 long sys32_getegid16(void);
 186 long sys32_ipc(u32 call, int first, int second, int third, u32 ptr);
 187 long sys32_truncate64(const char __user * path, unsigned long high,
 188                       unsigned long low);
 189 long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low);
 190 long sys32_sched_rr_get_interval(compat_pid_t pid,
 191                                  struct compat_timespec __user *interval);
 192 long sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
 193                           compat_sigset_t __user *oset, size_t sigsetsize);
 194 long sys32_rt_sigpending(compat_sigset_t __user *set, size_t sigsetsize);
 195 long sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo);
 196 long sys32_execve(const char __user *name, compat_uptr_t __user *argv,
 197                   compat_uptr_t __user *envp);
 198 long sys32_init_module(void __user *umod, unsigned long len,
 199                        const char __user *uargs);
 200 long sys32_delete_module(const char __user *name_user, unsigned int flags);
 201 long sys32_pread64(unsigned int fd, char __user *ubuf, size_t count,
 202                    u32 poshi, u32 poslo);
 203 long sys32_pwrite64(unsigned int fd, const char __user *ubuf,
 204                     size_t count, u32 poshi, u32 poslo);
 205 compat_ssize_t sys32_readahead(int fd, u32 offhi, u32 offlo, s32 count);
 206 long sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
 207                     size_t count);
 208 long sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset,
 209                       s32 count);
 210 long sys32_stat64(const char __user * filename, struct stat64_emu31 __user * statbuf);
 211 long sys32_lstat64(const char __user * filename,
 212                    struct stat64_emu31 __user * statbuf);
 213 long sys32_fstat64(unsigned long fd, struct stat64_emu31 __user * statbuf);
 214 long sys32_fstatat64(unsigned int dfd, const char __user *filename,
 215                      struct stat64_emu31 __user* statbuf, int flag);
 216 unsigned long old32_mmap(struct mmap_arg_struct_emu31 __user *arg);
 217 long sys32_mmap2(struct mmap_arg_struct_emu31 __user *arg);
 218 long sys32_read(unsigned int fd, char __user * buf, size_t count);
 219 long sys32_write(unsigned int fd, const char __user * buf, size_t count);
 220 long sys32_fadvise64(int fd, loff_t offset, size_t len, int advise);
 221 long sys32_fadvise64_64(struct fadvise64_64_args __user *args);
 222 long sys32_sigaction(int sig, const struct old_sigaction32 __user *act,
 223                      struct old_sigaction32 __user *oact);
 224 long sys32_rt_sigaction(int sig, const struct sigaction32 __user *act,
 225                         struct sigaction32 __user *oact, size_t sigsetsize);
 226 long sys32_sigaltstack(const stack_t32 __user *uss, stack_t32 __user *uoss);
 227 #endif /* _ASM_S390X_S390_H */