linux/arch/parisc/include/asm/compat.h
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   1#ifndef _ASM_PARISC_COMPAT_H
   2#define _ASM_PARISC_COMPAT_H
   3/*
   4 * Architecture specific compatibility types
   5 */
   6#include <linux/types.h>
   7#include <linux/sched.h>
   8#include <linux/thread_info.h>
   9
  10#define COMPAT_USER_HZ 100
  11
  12typedef u32     compat_size_t;
  13typedef s32     compat_ssize_t;
  14typedef s32     compat_time_t;
  15typedef s32     compat_clock_t;
  16typedef s32     compat_pid_t;
  17typedef u32     __compat_uid_t;
  18typedef u32     __compat_gid_t;
  19typedef u32     __compat_uid32_t;
  20typedef u32     __compat_gid32_t;
  21typedef u16     compat_mode_t;
  22typedef u32     compat_ino_t;
  23typedef u32     compat_dev_t;
  24typedef s32     compat_off_t;
  25typedef s64     compat_loff_t;
  26typedef u16     compat_nlink_t;
  27typedef u16     compat_ipc_pid_t;
  28typedef s32     compat_daddr_t;
  29typedef u32     compat_caddr_t;
  30typedef s32     compat_timer_t;
  31
  32typedef s32     compat_int_t;
  33typedef s32     compat_long_t;
  34typedef s64     compat_s64;
  35typedef u32     compat_uint_t;
  36typedef u32     compat_ulong_t;
  37typedef u64     compat_u64;
  38
  39struct compat_timespec {
  40        compat_time_t           tv_sec;
  41        s32                     tv_nsec;
  42};
  43
  44struct compat_timeval {
  45        compat_time_t           tv_sec;
  46        s32                     tv_usec;
  47};
  48
  49struct compat_stat {
  50        compat_dev_t            st_dev; /* dev_t is 32 bits on parisc */
  51        compat_ino_t            st_ino; /* 32 bits */
  52        compat_mode_t           st_mode;        /* 16 bits */
  53        compat_nlink_t          st_nlink;       /* 16 bits */
  54        u16                     st_reserved1;   /* old st_uid */
  55        u16                     st_reserved2;   /* old st_gid */
  56        compat_dev_t            st_rdev;
  57        compat_off_t            st_size;
  58        compat_time_t           st_atime;
  59        u32                     st_atime_nsec;
  60        compat_time_t           st_mtime;
  61        u32                     st_mtime_nsec;
  62        compat_time_t           st_ctime;
  63        u32                     st_ctime_nsec;
  64        s32                     st_blksize;
  65        s32                     st_blocks;
  66        u32                     __unused1;      /* ACL stuff */
  67        compat_dev_t            __unused2;      /* network */
  68        compat_ino_t            __unused3;      /* network */
  69        u32                     __unused4;      /* cnodes */
  70        u16                     __unused5;      /* netsite */
  71        short                   st_fstype;
  72        compat_dev_t            st_realdev;
  73        u16                     st_basemode;
  74        u16                     st_spareshort;
  75        __compat_uid32_t        st_uid;
  76        __compat_gid32_t        st_gid;
  77        u32                     st_spare4[3];
  78};
  79
  80struct compat_flock {
  81        short                   l_type;
  82        short                   l_whence;
  83        compat_off_t            l_start;
  84        compat_off_t            l_len;
  85        compat_pid_t            l_pid;
  86};
  87
  88struct compat_flock64 {
  89        short                   l_type;
  90        short                   l_whence;
  91        compat_loff_t           l_start;
  92        compat_loff_t           l_len;
  93        compat_pid_t            l_pid;
  94};
  95
  96struct compat_statfs {
  97        s32             f_type;
  98        s32             f_bsize;
  99        s32             f_blocks;
 100        s32             f_bfree;
 101        s32             f_bavail;
 102        s32             f_files;
 103        s32             f_ffree;
 104        __kernel_fsid_t f_fsid;
 105        s32             f_namelen;
 106        s32             f_frsize;
 107        s32             f_spare[5];
 108};
 109
 110struct compat_sigcontext {
 111        compat_int_t sc_flags;
 112        compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
 113        u64 sc_fr[32];
 114        compat_int_t sc_iasq[2];
 115        compat_int_t sc_iaoq[2];
 116        compat_int_t sc_sar; /* cr11 */
 117};
 118
 119#define COMPAT_RLIM_INFINITY 0xffffffff
 120
 121typedef u32             compat_old_sigset_t;    /* at least 32 bits */
 122
 123#define _COMPAT_NSIG            64
 124#define _COMPAT_NSIG_BPW        32
 125
 126typedef u32             compat_sigset_word;
 127
 128#define COMPAT_OFF_T_MAX        0x7fffffff
 129#define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 130
 131/*
 132 * A pointer passed in from user mode. This should not
 133 * be used for syscall parameters, just declare them
 134 * as pointers because the syscall entry code will have
 135 * appropriately converted them already.
 136 */
 137typedef u32             compat_uptr_t;
 138
 139static inline void __user *compat_ptr(compat_uptr_t uptr)
 140{
 141        return (void __user *)(unsigned long)uptr;
 142}
 143
 144static inline compat_uptr_t ptr_to_compat(void __user *uptr)
 145{
 146        return (u32)(unsigned long)uptr;
 147}
 148
 149static __inline__ void __user *compat_alloc_user_space(long len)
 150{
 151        struct pt_regs *regs = &current->thread.regs;
 152        return (void __user *)regs->gr[30];
 153}
 154
 155static inline int __is_compat_task(struct task_struct *t)
 156{
 157        return test_ti_thread_flag(task_thread_info(t), TIF_32BIT);
 158}
 159
 160static inline int is_compat_task(void)
 161{
 162        return __is_compat_task(current);
 163}
 164
 165#endif /* _ASM_PARISC_COMPAT_H */
 166