include/asm-x86_64/ia32.h

   1 #ifndef _ASM_X86_64_IA32_H
   2 #define _ASM_X86_64_IA32_H
   3
   4 #include <linux/config.h>
   5
   6 #ifdef CONFIG_IA32_EMULATION
   7
   8 #include <linux/compat.h>
   9
  10 /*
  11  * 32 bit structures for IA32 support.
  12  */
  13
  14 #include <asm/sigcontext32.h>
  15
  16 /* signal.h */
  17 struct sigaction32 {
  18        unsigned int  sa_handler;        /* Really a pointer, but need to deal
  19                                              with 32 bits */
  20        unsigned int sa_flags;
  21        unsigned int sa_restorer;        /* Another 32 bit pointer */
  22        compat_sigset_t sa_mask;         /* A 32 bit mask */
  23 };
  24
  25 struct old_sigaction32 {
  26        unsigned int  sa_handler;        /* Really a pointer, but need to deal
  27                                              with 32 bits */
  28        compat_old_sigset_t sa_mask;             /* A 32 bit mask */
  29        unsigned int sa_flags;
  30        unsigned int sa_restorer;        /* Another 32 bit pointer */
  31 };
  32
  33 typedef struct sigaltstack_ia32 {
  34         unsigned int    ss_sp;
  35         int             ss_flags;
  36         unsigned int    ss_size;
  37 } stack_ia32_t;
  38
  39 struct ucontext_ia32 {
  40         unsigned int      uc_flags;
  41         unsigned int      uc_link;
  42         stack_ia32_t      uc_stack;
  43         struct sigcontext_ia32 uc_mcontext;
  44         compat_sigset_t   uc_sigmask;   /* mask last for extensibility */
  45 };
  46
  47 /* This matches struct stat64 in glibc2.2, hence the absolutely
  48  * insane amounts of padding around dev_t's.
  49  */
  50 struct stat64 {
  51         unsigned long long      st_dev;
  52         unsigned char           __pad0[4];
  53
  54 #define STAT64_HAS_BROKEN_ST_INO        1
  55         unsigned int            __st_ino;
  56
  57         unsigned int            st_mode;
  58         unsigned int            st_nlink;
  59
  60         unsigned int            st_uid;
  61         unsigned int            st_gid;
  62
  63         unsigned long long      st_rdev;
  64         unsigned char           __pad3[4];
  65
  66         long long               st_size;
  67         unsigned int            st_blksize;
  68
  69         long long               st_blocks;/* Number 512-byte blocks allocated. */
  70
  71         unsigned                st_atime;
  72         unsigned                st_atime_nsec;
  73         unsigned                st_mtime;
  74         unsigned                st_mtime_nsec;
  75         unsigned                st_ctime;
  76         unsigned                st_ctime_nsec;
  77
  78         unsigned long long      st_ino;
  79 } __attribute__((packed));
  80
  81
  82 typedef union sigval32 {
  83         int sival_int;
  84         unsigned int sival_ptr;
  85 } sigval_t32;
  86
  87 typedef struct siginfo32 {
  88         int si_signo;
  89         int si_errno;
  90         int si_code;
  91
  92         union {
  93                 int _pad[((128/sizeof(int)) - 3)];
  94
  95                 /* kill() */
  96                 struct {
  97                         unsigned int _pid;      /* sender's pid */
  98                         unsigned int _uid;      /* sender's uid */
  99                 } _kill;
 100
 101                 /* POSIX.1b timers */
 102                 struct {
 103                         int _tid;               /* timer id */
 104                         int _overrun;           /* overrun count */
 105                         sigval_t32 _sigval;     /* same as below */
 106                         int _sys_private;       /* not to be passed to user */
 107                         int _overrun_incr;      /* amount to add to overrun */
 108                 } _timer;
 109
 110                 /* POSIX.1b signals */
 111                 struct {
 112                         unsigned int _pid;      /* sender's pid */
 113                         unsigned int _uid;      /* sender's uid */
 114                         sigval_t32 _sigval;
 115                 } _rt;
 116
 117                 /* SIGCHLD */
 118                 struct {
 119                         unsigned int _pid;      /* which child */
 120                         unsigned int _uid;      /* sender's uid */
 121                         int _status;            /* exit code */
 122                         compat_clock_t _utime;
 123                         compat_clock_t _stime;
 124                 } _sigchld;
 125
 126                 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
 127                 struct {
 128                         unsigned int _addr;     /* faulting insn/memory ref. */
 129                 } _sigfault;
 130
 131                 /* SIGPOLL */
 132                 struct {
 133                         int _band;      /* POLL_IN, POLL_OUT, POLL_MSG */
 134                         int _fd;
 135                 } _sigpoll;
 136         } _sifields;
 137 } siginfo_t32;
 138
 139 struct sigframe32
 140 {
 141         u32 pretcode;
 142         int sig;
 143         struct sigcontext_ia32 sc;
 144         struct _fpstate_ia32 fpstate;
 145         unsigned int extramask[_COMPAT_NSIG_WORDS-1];
 146 };
 147
 148 struct rt_sigframe32
 149 {
 150         u32 pretcode;
 151         int sig;
 152         u32 pinfo;
 153         u32 puc;
 154         struct siginfo32 info;
 155         struct ucontext_ia32 uc;
 156         struct _fpstate_ia32 fpstate;
 157 };
 158
 159 struct ustat32 {
 160         __u32   f_tfree;
 161         compat_ino_t            f_tinode;
 162         char                    f_fname[6];
 163         char                    f_fpack[6];
 164 };
 165
 166 #define IA32_STACK_TOP IA32_PAGE_OFFSET
 167
 168 #ifdef __KERNEL__
 169 struct user_desc;
 170 struct siginfo_t;
 171 int do_get_thread_area(struct thread_struct *t, struct user_desc __user *info);
 172 int do_set_thread_area(struct thread_struct *t, struct user_desc __user *info);
 173 int ia32_child_tls(struct task_struct *p, struct pt_regs *childregs);
 174 int ia32_copy_siginfo_from_user(siginfo_t *to, siginfo_t32 __user *from);
 175 int ia32_copy_siginfo_to_user(siginfo_t32 __user *to, siginfo_t *from);
 176 #endif
 177
 178 #endif /* !CONFIG_IA32_SUPPORT */
 179
 180 #endif