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 /* asm/sigcontext.h */
  21 typedef union
  22 {
  23         __u64   d;
  24         __u32   f;
  25 } freg_t32;
  26
  27 typedef struct
  28 {
  29         unsigned int    fpc;
  30         freg_t32        fprs[__NUM_FPRS];
  31 } _s390_fp_regs32;
  32
  33 typedef struct
  34 {
  35         __u32   mask;
  36         __u32   addr;
  37 } _psw_t32 __attribute__ ((aligned(8)));
  38
  39 typedef struct
  40 {
  41         _psw_t32        psw;
  42         __u32           gprs[__NUM_GPRS];
  43         __u32           acrs[__NUM_ACRS];
  44 } _s390_regs_common32;
  45
  46 typedef struct
  47 {
  48         _s390_regs_common32 regs;
  49         _s390_fp_regs32     fpregs;
  50 } _sigregs32;
  51
  52 #define _SIGCONTEXT_NSIG32      64
  53 #define _SIGCONTEXT_NSIG_BPW32  32
  54 #define __SIGNAL_FRAMESIZE32    96
  55 #define _SIGMASK_COPY_SIZE32    (sizeof(u32)*2)
  56
  57 struct sigcontext32
  58 {
  59         __u32   oldmask[_COMPAT_NSIG_WORDS];
  60         __u32   sregs;                          /* pointer */
  61 };
  62
  63 /* asm/signal.h */
  64
  65 /* asm/ucontext.h */
  66 struct ucontext32 {
  67         __u32                   uc_flags;
  68         __u32                   uc_link;        /* pointer */
  69         compat_stack_t          uc_stack;
  70         _sigregs32              uc_mcontext;
  71         compat_sigset_t         uc_sigmask;     /* mask last for extensibility */
  72 };
  73
  74 struct stat64_emu31;
  75 struct mmap_arg_struct_emu31;
  76 struct fadvise64_64_args;
  77
  78 long sys32_chown16(const char __user * filename, u16 user, u16 group);
  79 long sys32_lchown16(const char __user * filename, u16 user, u16 group);
  80 long sys32_fchown16(unsigned int fd, u16 user, u16 group);
  81 long sys32_setregid16(u16 rgid, u16 egid);
  82 long sys32_setgid16(u16 gid);
  83 long sys32_setreuid16(u16 ruid, u16 euid);
  84 long sys32_setuid16(u16 uid);
  85 long sys32_setresuid16(u16 ruid, u16 euid, u16 suid);
  86 long sys32_getresuid16(u16 __user *ruid, u16 __user *euid, u16 __user *suid);
  87 long sys32_setresgid16(u16 rgid, u16 egid, u16 sgid);
  88 long sys32_getresgid16(u16 __user *rgid, u16 __user *egid, u16 __user *sgid);
  89 long sys32_setfsuid16(u16 uid);
  90 long sys32_setfsgid16(u16 gid);
  91 long sys32_getgroups16(int gidsetsize, u16 __user *grouplist);
  92 long sys32_setgroups16(int gidsetsize, u16 __user *grouplist);
  93 long sys32_getuid16(void);
  94 long sys32_geteuid16(void);
  95 long sys32_getgid16(void);
  96 long sys32_getegid16(void);
  97 long sys32_truncate64(const char __user * path, unsigned long high,
  98                       unsigned long low);
  99 long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low);
 100 long sys32_init_module(void __user *umod, unsigned long len,
 101                        const char __user *uargs);
 102 long sys32_delete_module(const char __user *name_user, unsigned int flags);
 103 long sys32_pread64(unsigned int fd, char __user *ubuf, size_t count,
 104                    u32 poshi, u32 poslo);
 105 long sys32_pwrite64(unsigned int fd, const char __user *ubuf,
 106                     size_t count, u32 poshi, u32 poslo);
 107 compat_ssize_t sys32_readahead(int fd, u32 offhi, u32 offlo, s32 count);
 108 long sys32_stat64(const char __user * filename, struct stat64_emu31 __user * statbuf);
 109 long sys32_lstat64(const char __user * filename,
 110                    struct stat64_emu31 __user * statbuf);
 111 long sys32_fstat64(unsigned long fd, struct stat64_emu31 __user * statbuf);
 112 long sys32_fstatat64(unsigned int dfd, const char __user *filename,
 113                      struct stat64_emu31 __user* statbuf, int flag);
 114 unsigned long old32_mmap(struct mmap_arg_struct_emu31 __user *arg);
 115 long sys32_mmap2(struct mmap_arg_struct_emu31 __user *arg);
 116 long sys32_read(unsigned int fd, char __user * buf, size_t count);
 117 long sys32_write(unsigned int fd, const char __user * buf, size_t count);
 118 long sys32_fadvise64(int fd, loff_t offset, size_t len, int advise);
 119 long sys32_fadvise64_64(struct fadvise64_64_args __user *args);
 120 #endif /* _ASM_S390X_S390_H */