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      1 
      2 /*--------------------------------------------------------------------*/
      3 /*--- s390x/Linux-specific kernel interface.     vki-s390x-linux.h ---*/
      4 /*--------------------------------------------------------------------*/
      5 
      6 /*
      7    This file is part of Valgrind, a dynamic binary instrumentation
      8    framework.
      9 
     10    Copyright IBM Corp. 2010-2012
     11 
     12    This program is free software; you can redistribute it and/or
     13    modify it under the terms of the GNU General Public License as
     14    published by the Free Software Foundation; either version 2 of the
     15    License, or (at your option) any later version.
     16 
     17    This program is distributed in the hope that it will be useful, but
     18    WITHOUT ANY WARRANTY; without even the implied warranty of
     19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     20    General Public License for more details.
     21 
     22    You should have received a copy of the GNU General Public License
     23    along with this program; if not, write to the Free Software
     24    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
     25    02111-1307, USA.
     26 
     27    The GNU General Public License is contained in the file COPYING.
     28 */
     29 
     30 /* Contributed by Florian Krohm and Volker Sameske */
     31 
     32 #ifndef __VKI_S390X_LINUX_H
     33 #define __VKI_S390X_LINUX_H
     34 
     35 #define __force
     36 
     37 //----------------------------------------------------------------------
     38 // From linux-2.6.16.60/include/asm-s390/types.h
     39 //----------------------------------------------------------------------
     40 
     41 typedef __signed__ char __vki_s8;
     42 typedef unsigned char __vki_u8;
     43 
     44 typedef __signed__ short __vki_s16;
     45 typedef unsigned short __vki_u16;
     46 
     47 typedef __signed__ int __vki_s32;
     48 typedef unsigned int __vki_u32;
     49 
     50 typedef __signed__ long __vki_s64;
     51 typedef unsigned long __vki_u64;
     52 
     53 typedef unsigned short vki_u16;
     54 
     55 typedef unsigned int vki_u32;
     56 
     57 //----------------------------------------------------------------------
     58 // From linux-2.6.16.60/include/asm-s390/page.h
     59 //----------------------------------------------------------------------
     60 
     61 /* PAGE_SHIFT determines the page size */
     62 #define VKI_PAGE_SHIFT  12
     63 #define VKI_PAGE_SIZE   (1UL << VKI_PAGE_SHIFT)
     64 
     65 //----------------------------------------------------------------------
     66 // From linux-2.6.16.60/include/asm-s390/siginfo.h
     67 //----------------------------------------------------------------------
     68 
     69 /* We need that to ensure that sizeof(siginfo) == 128. */
     70 #ifdef __s390x__
     71 #define __VKI_ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
     72 #endif
     73 
     74 //----------------------------------------------------------------------
     75 // From linux-2.6.16.60/include/asm-s390/sigcontext.h
     76 //----------------------------------------------------------------------
     77 
     78 #define __VKI_NUM_GPRS 16
     79 #define __VKI_NUM_FPRS 16
     80 #define __VKI_NUM_ACRS 16
     81 
     82 #ifndef VGA_s390x
     83 
     84 /* Has to be at least _NSIG_WORDS from asm/signal.h */
     85 #define _VKI_SIGCONTEXT_NSIG	64
     86 #define _VKI_SIGCONTEXT_NSIG_BPW	32
     87 /* Size of stack frame allocated when calling signal handler. */
     88 #define __VKI_SIGNAL_FRAMESIZE	96
     89 
     90 #else /* VGA_s390x */
     91 
     92 /* Has to be at least _NSIG_WORDS from asm/signal.h */
     93 #define _VKI_SIGCONTEXT_NSIG	64
     94 #define _VKI_SIGCONTEXT_NSIG_BPW	64
     95 /* Size of stack frame allocated when calling signal handler. */
     96 #define __VKI_SIGNAL_FRAMESIZE	160
     97 
     98 #endif /* VGA_s390x */
     99 
    100 
    101 #define _VKI_SIGCONTEXT_NSIG_WORDS	(_VKI_SIGCONTEXT_NSIG / _VKI_SIGCONTEXT_NSIG_BPW)
    102 #define _VKI_SIGMASK_COPY_SIZE	(sizeof(unsigned long)*_VKI_SIGCONTEXT_NSIG_WORDS)
    103 
    104 typedef struct
    105 {
    106 	unsigned long mask;
    107 	unsigned long addr;
    108 } __attribute__ ((aligned(8))) _vki_psw_t;
    109 
    110 typedef struct
    111 {
    112 	_vki_psw_t psw;
    113 	unsigned long gprs[__VKI_NUM_GPRS];
    114 	unsigned int  acrs[__VKI_NUM_ACRS];
    115 } _vki_s390_regs_common;
    116 
    117 typedef struct
    118 {
    119 	unsigned int fpc;
    120 	double   fprs[__VKI_NUM_FPRS];
    121 } _vki_s390_fp_regs;
    122 
    123 typedef struct
    124 {
    125 	_vki_s390_regs_common regs;
    126 	_vki_s390_fp_regs     fpregs;
    127 } _vki_sigregs;
    128 
    129 
    130 struct vki_sigcontext
    131 {
    132 	unsigned long   oldmask[_VKI_SIGCONTEXT_NSIG_WORDS];
    133 	_vki_sigregs    __user *sregs;
    134 };
    135 
    136 
    137 //----------------------------------------------------------------------
    138 // From linux-2.6.16.60/include/asm-s390/signal.h
    139 //----------------------------------------------------------------------
    140 
    141 #define _VKI_NSIG           _VKI_SIGCONTEXT_NSIG
    142 #define _VKI_NSIG_BPW       _VKI_SIGCONTEXT_NSIG_BPW
    143 #define _VKI_NSIG_WORDS     _VKI_SIGCONTEXT_NSIG_WORDS
    144 
    145 typedef unsigned long vki_old_sigset_t;
    146 
    147 typedef struct {
    148 	unsigned long sig[_VKI_NSIG_WORDS];
    149 } vki_sigset_t;
    150 
    151 #define VKI_SIGHUP           1
    152 #define VKI_SIGINT           2
    153 #define VKI_SIGQUIT          3
    154 #define VKI_SIGILL           4
    155 #define VKI_SIGTRAP          5
    156 #define VKI_SIGABRT          6
    157 #define VKI_SIGIOT           6
    158 #define VKI_SIGBUS           7
    159 #define VKI_SIGFPE           8
    160 #define VKI_SIGKILL          9
    161 #define VKI_SIGUSR1         10
    162 #define VKI_SIGSEGV         11
    163 #define VKI_SIGUSR2         12
    164 #define VKI_SIGPIPE         13
    165 #define VKI_SIGALRM         14
    166 #define VKI_SIGTERM         15
    167 #define VKI_SIGSTKFLT       16
    168 #define VKI_SIGCHLD         17
    169 #define VKI_SIGCONT         18
    170 #define VKI_SIGSTOP         19
    171 #define VKI_SIGTSTP         20
    172 #define VKI_SIGTTIN         21
    173 #define VKI_SIGTTOU         22
    174 #define VKI_SIGURG          23
    175 #define VKI_SIGXCPU         24
    176 #define VKI_SIGXFSZ         25
    177 #define VKI_SIGVTALRM       26
    178 #define VKI_SIGPROF         27
    179 #define VKI_SIGWINCH        28
    180 #define VKI_SIGIO           29
    181 #define VKI_SIGPOLL         VKI_SIGIO
    182 /*
    183 #define VKI_SIGLOST         29
    184 */
    185 #define VKI_SIGPWR          30
    186 #define VKI_SIGSYS	    31
    187 #define VKI_SIGUNUSED       31
    188 
    189 /* These should not be considered constants from userland.  */
    190 #define VKI_SIGRTMIN        32
    191 #define VKI_SIGRTMAX        _VKI_NSIG
    192 
    193 /*
    194  * SA_FLAGS values:
    195  *
    196  * SA_ONSTACK indicates that a registered stack_t will be used.
    197  * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
    198  * SA_RESTART flag to get restarting signals (which were the default long ago)
    199  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
    200  * SA_RESETHAND clears the handler when the signal is delivered.
    201  * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
    202  * SA_NODEFER prevents the current signal from being masked in the handler.
    203  *
    204  * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
    205  * Unix names RESETHAND and NODEFER respectively.
    206  */
    207 #define VKI_SA_NOCLDSTOP    0x00000001
    208 #define VKI_SA_NOCLDWAIT    0x00000002
    209 #define VKI_SA_SIGINFO      0x00000004
    210 #define VKI_SA_ONSTACK      0x08000000
    211 #define VKI_SA_RESTART      0x10000000
    212 #define VKI_SA_NODEFER      0x40000000
    213 #define VKI_SA_RESETHAND    0x80000000
    214 
    215 #define VKI_SA_NOMASK       VKI_SA_NODEFER
    216 #define VKI_SA_ONESHOT      VKI_SA_RESETHAND
    217 #define VKI_SA_INTERRUPT    0x20000000 /* dummy -- ignored */
    218 
    219 #define VKI_SA_RESTORER     0x04000000
    220 
    221 /*
    222  * sigaltstack controls
    223  */
    224 #define VKI_SS_ONSTACK      1
    225 #define VKI_SS_DISABLE      2
    226 
    227 #define VKI_MINSIGSTKSZ     2048
    228 #define VKI_SIGSTKSZ        8192
    229 
    230 
    231 /* Next lines asm-generic/signal.h */
    232 #define VKI_SIG_BLOCK          0 /* for blocking signals */
    233 #define VKI_SIG_UNBLOCK        1 /* for unblocking signals */
    234 #define VKI_SIG_SETMASK        2 /* for setting the signal mask */
    235 
    236 typedef void __vki_signalfn_t(int);
    237 typedef __vki_signalfn_t __user *__vki_sighandler_t;
    238 
    239 /* default signal handling */
    240 #define VKI_SIG_DFL ((__force __vki_sighandler_t)0)
    241 /* ignore signal */
    242 #define VKI_SIG_IGN ((__force __vki_sighandler_t)1)
    243 /* error return from signal */
    244 #define VKI_SIG_ERR ((__force __vki_sighandler_t)-1)
    245 /* Back to asm-s390/signal.h */
    246 
    247 struct vki_old_sigaction {
    248         // [[Nb: a 'k' prefix is added to "sa_handler" because
    249         // bits/sigaction.h (which gets dragged in somehow via signal.h)
    250         // #defines it as something else.  Since that is done for glibc's
    251         // purposes, which we don't care about here, we use our own name.]]
    252         __vki_sighandler_t ksa_handler;
    253         vki_old_sigset_t sa_mask;
    254         unsigned long sa_flags;
    255         void (*sa_restorer)(void);
    256 };
    257 
    258 struct vki_sigaction {
    259         // [[See comment about extra 'k' above]]
    260         __vki_sighandler_t ksa_handler;
    261         unsigned long sa_flags;
    262         void (*sa_restorer)(void);
    263         vki_sigset_t sa_mask;               /* mask last for extensibility */
    264 };
    265 
    266 struct vki_k_sigaction {
    267         struct vki_sigaction sa;
    268 };
    269 
    270 
    271 /* On Linux we use the same type for passing sigactions to
    272    and from the kernel.  Hence: */
    273 typedef  struct vki_sigaction  vki_sigaction_toK_t;
    274 typedef  struct vki_sigaction  vki_sigaction_fromK_t;
    275 
    276 
    277 typedef struct vki_sigaltstack {
    278 	void __user *ss_sp;
    279 	int ss_flags;
    280 	vki_size_t ss_size;
    281 } vki_stack_t;
    282 
    283 
    284 //----------------------------------------------------------------------
    285 // From linux-2.6.16.60/include/asm-s390/mman.h
    286 //----------------------------------------------------------------------
    287 
    288 #define VKI_PROT_NONE   0x0             /* No page permissions */
    289 #define VKI_PROT_READ   0x1             /* page can be read */
    290 #define VKI_PROT_WRITE  0x2             /* page can be written */
    291 #define VKI_PROT_EXEC   0x4             /* page can be executed */
    292 #define VKI_PROT_GROWSDOWN 0x01000000   /* mprotect flag: extend
    293 					   change to start of
    294 					   growsdown vma */
    295 #define VKI_PROT_GROWSUP   0x02000000   /* mprotect flag:
    296 					   extend change to end
    297 					   of growsup vma */
    298 
    299 #define VKI_MAP_SHARED		0x0001  /* Share changes */
    300 #define VKI_MAP_PRIVATE 	0x0002	/*  */
    301 #define VKI_MAP_FIXED   	0x0010	/*  */
    302 #define VKI_MAP_ANONYMOUS	0x0020	/*  */
    303 
    304 
    305 //----------------------------------------------------------------------
    306 // From linux-2.6.16.60/include/asm-s390/fcntl.h
    307 //----------------------------------------------------------------------
    308 
    309 #define VKI_O_RDONLY        00000000
    310 #define VKI_O_WRONLY        00000001
    311 #define VKI_O_RDWR          00000002
    312 #define VKI_O_ACCMODE       00000003
    313 #define VKI_O_CREAT         00000100        /* not fcntl */
    314 #define VKI_O_EXCL          00000200        /* not fcntl */
    315 #define VKI_O_NOCTTY        00000400        /* not fcntl */
    316 #define VKI_O_TRUNC         00001000        /* not fcntl */
    317 #define VKI_O_APPEND        00002000
    318 #define VKI_O_NONBLOCK      00004000
    319 
    320 #define VKI_AT_FDCWD            -100
    321 
    322 #define VKI_F_DUPFD	0	/* dup */
    323 #define VKI_F_GETFD	1	/* get close_on_exec */
    324 #define VKI_F_SETFD	2	/* set/clear close_on_exec */
    325 #define VKI_F_GETFL	3	/* get file->f_flags */
    326 #define VKI_F_SETFL	4	/* set file->f_flags */
    327 #define VKI_F_GETLK	5
    328 #define VKI_F_SETLK	6
    329 #define VKI_F_SETLKW	7
    330 #define VKI_F_SETOWN	8	/* for sockets. */
    331 #define VKI_F_GETOWN	9	/* for sockets. */
    332 #define VKI_F_SETSIG	10	/* for sockets. */
    333 #define VKI_F_GETSIG	11	/* for sockets. */
    334 
    335 #define VKI_F_SETOWN_EX		15
    336 #define VKI_F_GETOWN_EX		16
    337 
    338 #define VKI_F_OWNER_TID		0
    339 #define VKI_F_OWNER_PID		1
    340 #define VKI_F_OWNER_PGRP	2
    341 
    342 struct vki_f_owner_ex {
    343 	int	type;
    344 	__vki_kernel_pid_t	pid;
    345 };
    346 
    347 #define VKI_FD_CLOEXEC  1  /* actually anything with low bit set goes */
    348 
    349 #define VKI_F_LINUX_SPECIFIC_BASE   1024
    350 
    351 
    352 //----------------------------------------------------------------------
    353 // From linux-2.6.16.60/include/asm-s390x/resource.h
    354 //----------------------------------------------------------------------
    355 
    356 // which just does #include <asm-generic/resource.h>
    357 
    358 #define VKI_RLIMIT_DATA             2       /* max data size */
    359 #define VKI_RLIMIT_STACK            3       /* max stack size */
    360 #define VKI_RLIMIT_CORE             4       /* max core file size */
    361 #define VKI_RLIMIT_NOFILE           7       /* max number of open files */
    362 
    363 
    364 //----------------------------------------------------------------------
    365 // From linux-2.6.16.60/include/asm-s390/socket.h
    366 //----------------------------------------------------------------------
    367 
    368 #define VKI_SOL_SOCKET      1
    369 
    370 #define VKI_SO_TYPE         3
    371 
    372 
    373 //----------------------------------------------------------------------
    374 // From linux-2.6.16.60/include/asm-s390/sockios.h
    375 //----------------------------------------------------------------------
    376 
    377 #define VKI_SIOCSPGRP       0x8902
    378 #define VKI_SIOCGPGRP       0x8904
    379 #define VKI_SIOCGSTAMP      0x8906          /* Get stamp (timeval) */
    380 /* since 2.6.22 */
    381 #define VKI_SIOCGSTAMPNS    0x8907          /* Get stamp (timespec) */
    382 
    383 
    384 //----------------------------------------------------------------------
    385 // From linux-2.6.16.60/include/asm-s390/stat.h
    386 //----------------------------------------------------------------------
    387 
    388 #ifndef VGA_s390x
    389 struct vki_stat {
    390         unsigned short st_dev;
    391         unsigned short __pad1;
    392         unsigned long  st_ino;
    393         unsigned short st_mode;
    394         unsigned short st_nlink;
    395         unsigned short st_uid;
    396         unsigned short st_gid;
    397         unsigned short st_rdev;
    398         unsigned short __pad2;
    399         unsigned long  st_size;
    400         unsigned long  st_blksize;
    401         unsigned long  st_blocks;
    402         unsigned long  st_atime;
    403         unsigned long  st_atime_nsec;
    404         unsigned long  st_mtime;
    405         unsigned long  st_mtime_nsec;
    406         unsigned long  st_ctime;
    407         unsigned long  st_ctime_nsec;
    408         unsigned long  __unused4;
    409         unsigned long  __unused5;
    410 };
    411 
    412 /* This matches struct stat64 in glibc2.1, hence the absolutely
    413  * insane amounts of padding around dev_t's.
    414  */
    415 struct vki_stat64 {
    416         unsigned long long	st_dev;
    417         unsigned int    __pad1;
    418         unsigned long   __st_ino;
    419         unsigned int    st_mode;
    420         unsigned int    st_nlink;
    421         unsigned long   st_uid;
    422         unsigned long   st_gid;
    423         unsigned long long	st_rdev;
    424         unsigned int    __pad3;
    425         long long	st_size;
    426         unsigned long   st_blksize;
    427         unsigned char   __pad4[4];
    428         unsigned long   __pad5;     /* future possible st_blocks high bits */
    429         unsigned long   st_blocks;  /* Number 512-byte blocks allocated. */
    430         unsigned long   st_atime;
    431         unsigned long   st_atime_nsec;
    432         unsigned long   st_mtime;
    433         unsigned long   st_mtime_nsec;
    434         unsigned long   st_ctime;
    435         unsigned long   st_ctime_nsec;  /* will be high 32 bits of ctime someday */
    436         unsigned long long	st_ino;
    437 };
    438 
    439 #else
    440 
    441 struct vki_stat {
    442         unsigned long  st_dev;
    443         unsigned long  st_ino;
    444         unsigned long  st_nlink;
    445         unsigned int   st_mode;
    446         unsigned int   st_uid;
    447         unsigned int   st_gid;
    448         unsigned int   __pad1;
    449         unsigned long  st_rdev;
    450         unsigned long  st_size;
    451         unsigned long  st_atime;
    452 	unsigned long  st_atime_nsec;
    453         unsigned long  st_mtime;
    454 	unsigned long  st_mtime_nsec;
    455         unsigned long  st_ctime;
    456 	unsigned long  st_ctime_nsec;
    457         unsigned long  st_blksize;
    458         long           st_blocks;
    459         unsigned long  __unused[3];
    460 };
    461 
    462 #endif /* VGA_s390x */
    463 
    464 
    465 //----------------------------------------------------------------------
    466 // From linux-2.6.16.60/include/asm-s390/statfs.h
    467 //----------------------------------------------------------------------
    468 
    469 struct vki_statfs {
    470         int  f_type;
    471         int  f_bsize;
    472         long f_blocks;
    473         long f_bfree;
    474         long f_bavail;
    475         long f_files;
    476         long f_ffree;
    477         __vki_kernel_fsid_t f_fsid;
    478         int  f_namelen;
    479         int  f_frsize;
    480         int  f_spare[5];
    481 };
    482 
    483 
    484 //----------------------------------------------------------------------
    485 // From linux-2.6.16.60/include/asm-s390/termios.h
    486 //----------------------------------------------------------------------
    487 
    488 struct vki_winsize {
    489 	unsigned short ws_row;
    490 	unsigned short ws_col;
    491 	unsigned short ws_xpixel;
    492 	unsigned short ws_ypixel;
    493 };
    494 
    495 #define VKI_NCC 8
    496 struct vki_termio {
    497 	unsigned short c_iflag;		/* input mode flags */
    498 	unsigned short c_oflag;		/* output mode flags */
    499 	unsigned short c_cflag;		/* control mode flags */
    500 	unsigned short c_lflag;		/* local mode flags */
    501 	unsigned char c_line;		/* line discipline */
    502 	unsigned char c_cc[VKI_NCC];	/* control characters */
    503 };
    504 
    505 
    506 //----------------------------------------------------------------------
    507 // From linux-2.6.16.60/include/asm-s390/termbits.h
    508 //----------------------------------------------------------------------
    509 
    510 typedef unsigned char   vki_cc_t;
    511 typedef unsigned int    vki_tcflag_t;
    512 
    513 #define VKI_NCCS 19
    514 struct vki_termios {
    515 	vki_tcflag_t c_iflag;		/* input mode flags */
    516 	vki_tcflag_t c_oflag;		/* output mode flags */
    517 	vki_tcflag_t c_cflag;		/* control mode flags */
    518 	vki_tcflag_t c_lflag;		/* local mode flags */
    519 	vki_cc_t c_line;		/* line discipline */
    520 	vki_cc_t c_cc[VKI_NCCS];	/* control characters */
    521 };
    522 
    523 
    524 //----------------------------------------------------------------------
    525 // From linux-2.6.16.60/include/asm-s390/ioctl.h
    526 //----------------------------------------------------------------------
    527 
    528 #define _VKI_IOC_NRBITS		8
    529 #define _VKI_IOC_TYPEBITS	8
    530 #define _VKI_IOC_SIZEBITS	14
    531 #define _VKI_IOC_DIRBITS	2
    532 
    533 #define _VKI_IOC_NRMASK		((1 << _VKI_IOC_NRBITS)-1)
    534 #define _VKI_IOC_TYPEMASK	((1 << _VKI_IOC_TYPEBITS)-1)
    535 #define _VKI_IOC_SIZEMASK	((1 << _VKI_IOC_SIZEBITS)-1)
    536 #define _VKI_IOC_DIRMASK	((1 << _VKI_IOC_DIRBITS)-1)
    537 
    538 #define _VKI_IOC_NRSHIFT	0
    539 #define _VKI_IOC_TYPESHIFT	(_VKI_IOC_NRSHIFT+_VKI_IOC_NRBITS)
    540 #define _VKI_IOC_SIZESHIFT	(_VKI_IOC_TYPESHIFT+_VKI_IOC_TYPEBITS)
    541 #define _VKI_IOC_DIRSHIFT	(_VKI_IOC_SIZESHIFT+_VKI_IOC_SIZEBITS)
    542 
    543 #define _VKI_IOC_NONE	0U
    544 #define _VKI_IOC_WRITE	1U
    545 #define _VKI_IOC_READ	2U
    546 
    547 #define _VKI_IOC(dir,type,nr,size) \
    548 	(((dir)  << _VKI_IOC_DIRSHIFT) | \
    549 	 ((type) << _VKI_IOC_TYPESHIFT) | \
    550 	 ((nr)   << _VKI_IOC_NRSHIFT) | \
    551 	 ((size) << _VKI_IOC_SIZESHIFT))
    552 
    553 /* used to create numbers */
    554 #define _VKI_IO(type,nr)	_VKI_IOC(_VKI_IOC_NONE,(type),(nr),0)
    555 #define _VKI_IOR(type,nr,size)	_VKI_IOC(_VKI_IOC_READ,(type),(nr),(_VKI_IOC_TYPECHECK(size)))
    556 #define _VKI_IOW(type,nr,size)	_VKI_IOC(_VKI_IOC_WRITE,(type),(nr),(_VKI_IOC_TYPECHECK(size)))
    557 #define _VKI_IOWR(type,nr,size)	_VKI_IOC(_VKI_IOC_READ|_VKI_IOC_WRITE,(type),(nr),(_VKI_IOC_TYPECHECK(size)))
    558 
    559 /* used to decode ioctl numbers.. */
    560 #define _VKI_IOC_DIR(nr)	(((nr) >> _VKI_IOC_DIRSHIFT) & _VKI_IOC_DIRMASK)
    561 #define _VKI_IOC_TYPE(nr)	(((nr) >> _VKI_IOC_TYPESHIFT) & _VKI_IOC_TYPEMASK)
    562 #define _VKI_IOC_NR(nr)		(((nr) >> _VKI_IOC_NRSHIFT) & _VKI_IOC_NRMASK)
    563 #define _VKI_IOC_SIZE(nr)	(((nr) >> _VKI_IOC_SIZESHIFT) & _VKI_IOC_SIZEMASK)
    564 
    565 //----------------------------------------------------------------------
    566 // From linux-2.6.16.60/include/asm-s390/ioctls.h
    567 //----------------------------------------------------------------------
    568 
    569 /* 0x54 is just a magic number to make these relatively unique ('T') */
    570 
    571 #define VKI_TCGETS	0x5401
    572 #define VKI_TCSETS	0x5402
    573 #define VKI_TCSETSW	0x5403
    574 #define VKI_TCSETSF	0x5404
    575 #define VKI_TCGETA	0x5405
    576 #define VKI_TCSETA	0x5406
    577 #define VKI_TCSETAW	0x5407
    578 #define VKI_TCSETAF	0x5408
    579 #define VKI_TCSBRK	0x5409
    580 #define VKI_TCXONC	0x540A
    581 #define VKI_TCFLSH	0x540B
    582 
    583 #define VKI_TIOCSCTTY	0x540E
    584 #define VKI_TIOCGPGRP	0x540F
    585 #define VKI_TIOCSPGRP	0x5410
    586 #define VKI_TIOCOUTQ	0x5411
    587 
    588 #define VKI_TIOCGWINSZ	0x5413
    589 #define VKI_TIOCSWINSZ	0x5414
    590 #define VKI_TIOCMGET	0x5415
    591 #define VKI_TIOCMBIS	0x5416
    592 #define VKI_TIOCMBIC	0x5417
    593 #define VKI_TIOCMSET	0x5418
    594 
    595 #define VKI_FIONREAD	0x541B
    596 #define VKI_TIOCLINUX	0x541C
    597 
    598 #define VKI_FIONBIO	0x5421
    599 
    600 #define VKI_TCSBRKP	0x5425	/* Needed for POSIX tcsendbreak() */
    601 
    602 #define VKI_TIOCGPTN	_VKI_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
    603 #define VKI_TIOCSPTLCK	_VKI_IOW('T',0x31, int)  /* Lock/unlock Pty */
    604 
    605 #define VKI_FIOASYNC	        0x5452
    606 
    607 #define VKI_TIOCSERGETLSR       0x5459 /* Get line status register */
    608 
    609 #define VKI_TIOCGICOUNT	0x545D	/* read serial port inline interrupt counts */
    610 
    611 //----------------------------------------------------------------------
    612 // From linux-2.6.39-rc2/arch/s390/include/asm/ioctls.h
    613 //----------------------------------------------------------------------
    614 
    615 #define VKI_FIOQSIZE 0x545E
    616 
    617 //----------------------------------------------------------------------
    618 // From linux-2.6.16.60/include/asm-s390/poll.h
    619 //----------------------------------------------------------------------
    620 
    621 struct vki_pollfd {
    622 	int fd;
    623 	short events;
    624 	short revents;
    625 };
    626 
    627 #define VKI_POLLIN          0x0001
    628 
    629 //----------------------------------------------------------------------
    630 // From linux-2.6.16.60/include/asm-s390/ptrace.h
    631 //----------------------------------------------------------------------
    632 #define VKI_NUM_GPRS	16
    633 #define VKI_NUM_FPRS	16
    634 #define VKI_NUM_CRS	16
    635 #define VKI_NUM_ACRS	16
    636 
    637 typedef union
    638 {
    639 	float   f;
    640 	double  d;
    641         __vki_u64   ui;
    642 	struct
    643 	{
    644 		__vki_u32 hi;
    645 		__vki_u32 lo;
    646 	} fp;
    647 } vki_freg_t;
    648 
    649 typedef struct
    650 {
    651 	__vki_u32   fpc;
    652 	vki_freg_t  fprs[VKI_NUM_FPRS];
    653 } vki_s390_fp_regs;
    654 
    655 typedef struct
    656 {
    657         unsigned long mask;
    658         unsigned long addr;
    659 } __attribute__ ((aligned(8))) vki_psw_t;
    660 
    661 typedef struct
    662 {
    663 	vki_psw_t psw;
    664 	unsigned long gprs[VKI_NUM_GPRS];
    665 	unsigned int  acrs[VKI_NUM_ACRS];
    666 	unsigned long orig_gpr2;
    667 } vki_s390_regs;
    668 
    669 /*
    670  * Now for the program event recording (trace) definitions.
    671  */
    672 typedef struct
    673 {
    674 	unsigned long cr[3];
    675 } vki_per_cr_words;
    676 
    677 typedef	struct
    678 {
    679 #ifdef VGA_s390x
    680 	unsigned                       : 32;
    681 #endif /* VGA_s390x */
    682 	unsigned em_branching          : 1;
    683 	unsigned em_instruction_fetch  : 1;
    684 	/*
    685 	 * Switching on storage alteration automatically fixes
    686 	 * the storage alteration event bit in the users std.
    687 	 */
    688 	unsigned em_storage_alteration : 1;
    689 	unsigned em_gpr_alt_unused     : 1;
    690 	unsigned em_store_real_address : 1;
    691 	unsigned                       : 3;
    692 	unsigned branch_addr_ctl       : 1;
    693 	unsigned                       : 1;
    694 	unsigned storage_alt_space_ctl : 1;
    695 	unsigned                       : 21;
    696 	unsigned long starting_addr;
    697 	unsigned long ending_addr;
    698 } vki_per_cr_bits;
    699 
    700 typedef struct
    701 {
    702 	unsigned short perc_atmid;
    703 	unsigned long address;
    704 	unsigned char access_id;
    705 } vki_per_lowcore_words;
    706 
    707 typedef struct
    708 {
    709 	unsigned perc_branching          : 1;
    710 	unsigned perc_instruction_fetch  : 1;
    711 	unsigned perc_storage_alteration : 1;
    712 	unsigned perc_gpr_alt_unused     : 1;
    713 	unsigned perc_store_real_address : 1;
    714 	unsigned                         : 3;
    715 	unsigned atmid_psw_bit_31        : 1;
    716 	unsigned atmid_validity_bit      : 1;
    717 	unsigned atmid_psw_bit_32        : 1;
    718 	unsigned atmid_psw_bit_5         : 1;
    719 	unsigned atmid_psw_bit_16        : 1;
    720 	unsigned atmid_psw_bit_17        : 1;
    721 	unsigned si                      : 2;
    722 	unsigned long address;
    723 	unsigned                         : 4;
    724 	unsigned access_id               : 4;
    725 } vki_per_lowcore_bits;
    726 
    727 typedef struct
    728 {
    729 	union {
    730 		vki_per_cr_words   words;
    731 		vki_per_cr_bits    bits;
    732 	} control_regs;
    733 	/*
    734 	 * Use these flags instead of setting em_instruction_fetch
    735 	 * directly they are used so that single stepping can be
    736 	 * switched on & off while not affecting other tracing
    737 	 */
    738 	unsigned  single_step       : 1;
    739 	unsigned  instruction_fetch : 1;
    740 	unsigned                    : 30;
    741 	/*
    742 	 * These addresses are copied into cr10 & cr11 if single
    743 	 * stepping is switched off
    744 	 */
    745 	unsigned long starting_addr;
    746 	unsigned long ending_addr;
    747 	union {
    748 		vki_per_lowcore_words words;
    749 		vki_per_lowcore_bits  bits;
    750 	} lowcore;
    751 } vki_per_struct;
    752 
    753 /*
    754  * The user_regs_struct defines the way the user registers are
    755  * store on the stack for signal handling.
    756  */
    757 struct vki_user_regs_struct
    758 {
    759 	vki_psw_t psw;
    760 	unsigned long gprs[VKI_NUM_GPRS];
    761 	unsigned int  acrs[VKI_NUM_ACRS];
    762 	unsigned long orig_gpr2;
    763 	vki_s390_fp_regs fp_regs;
    764 	/*
    765 	 * These per registers are in here so that gdb can modify them
    766 	 * itself as there is no "official" ptrace interface for hardware
    767 	 * watchpoints. This is the way intel does it.
    768 	 */
    769 	vki_per_struct per_info;
    770 	unsigned long ieee_instruction_pointer;
    771 	/* Used to give failing instruction back to user for ieee exceptions */
    772 };
    773 
    774 typedef struct
    775 {
    776 	unsigned int  vki_len;
    777 	unsigned long vki_kernel_addr;
    778 	unsigned long vki_process_addr;
    779 } vki_ptrace_area;
    780 
    781 /*
    782  * S/390 specific non posix ptrace requests
    783  */
    784 #define VKI_PTRACE_PEEKUSR_AREA       0x5000
    785 #define VKI_PTRACE_POKEUSR_AREA       0x5001
    786 
    787 //----------------------------------------------------------------------
    788 // From linux-2.6.16.60/include/asm-s390/elf.h
    789 //----------------------------------------------------------------------
    790 
    791 typedef vki_s390_fp_regs vki_elf_fpregset_t;
    792 typedef vki_s390_regs vki_elf_gregset_t;
    793 
    794 
    795 //----------------------------------------------------------------------
    796 // From linux-2.6.16.60/include/asm-s390/ucontext.h
    797 //----------------------------------------------------------------------
    798 
    799 struct vki_ucontext {
    800 	unsigned long	      uc_flags;
    801 	struct vki_ucontext  *uc_link;
    802 	vki_stack_t	      uc_stack;
    803 	_vki_sigregs          uc_mcontext;
    804 	vki_sigset_t	      uc_sigmask; /* mask last for extensibility */
    805 };
    806 
    807 //----------------------------------------------------------------------
    808 // From linux-2.6.16.60/include/asm-s390/ipcbuf.h
    809 //----------------------------------------------------------------------
    810 
    811 struct vki_ipc64_perm
    812 {
    813 	__vki_kernel_key_t	key;
    814 	__vki_kernel_uid32_t	uid;
    815 	__vki_kernel_gid32_t	gid;
    816 	__vki_kernel_uid32_t	cuid;
    817 	__vki_kernel_gid32_t	cgid;
    818 	__vki_kernel_mode_t	mode;
    819 	unsigned short		__pad1;
    820 	unsigned short		seq;
    821 #ifndef VGA_s390x
    822 	unsigned short		__pad2;
    823 #endif /* ! VGA_s390x */
    824 	unsigned long		__unused1;
    825 	unsigned long		__unused2;
    826 };
    827 
    828 
    829 //----------------------------------------------------------------------
    830 // From linux-2.6.16.60/include/asm-s390/sembuf.h
    831 //----------------------------------------------------------------------
    832 
    833 struct vki_semid64_ds {
    834 	struct vki_ipc64_perm sem_perm;		/* permissions .. see ipc.h */
    835 	__vki_kernel_time_t   sem_otime;	/* last semop time */
    836 #ifndef VGA_s390x
    837 	unsigned long	__unused1;
    838 #endif /* ! VGA_s390x */
    839 	__vki_kernel_time_t   sem_ctime;	/* last change time */
    840 #ifndef VGA_s390x
    841 	unsigned long	__unused2;
    842 #endif /* ! VGA_s390x */
    843 	unsigned long	sem_nsems;		/* no. of semaphores in array */
    844 	unsigned long	__unused3;
    845 	unsigned long	__unused4;
    846 };
    847 
    848 
    849 //----------------------------------------------------------------------
    850 // From linux-2.6.16.60/include/asm-s390/msgbuf.h
    851 //----------------------------------------------------------------------
    852 
    853 struct vki_msqid64_ds {
    854 	struct vki_ipc64_perm msg_perm;
    855 	__vki_kernel_time_t msg_stime;	/* last msgsnd time */
    856 #ifndef VGA_s390x
    857 	unsigned long	__unused1;
    858 #endif /* ! VGA_s390x */
    859 	__vki_kernel_time_t msg_rtime;	/* last msgrcv time */
    860 #ifndef VGA_s390x
    861 	unsigned long	__unused2;
    862 #endif /* ! VGA_s390x */
    863 	__vki_kernel_time_t msg_ctime;	/* last change time */
    864 #ifndef VGA_s390x
    865 	unsigned long	__unused3;
    866 #endif /* ! VGA_s390x */
    867 	unsigned long  msg_cbytes;	/* current number of bytes on queue */
    868 	unsigned long  msg_qnum;	/* number of messages in queue */
    869 	unsigned long  msg_qbytes;	/* max number of bytes on queue */
    870 	__vki_kernel_pid_t msg_lspid;	/* pid of last msgsnd */
    871 	__vki_kernel_pid_t msg_lrpid;	/* last receive pid */
    872 	unsigned long  __unused4;
    873 	unsigned long  __unused5;
    874 };
    875 
    876 
    877 //----------------------------------------------------------------------
    878 // From linux-2.6.16.60/include/asm-s390/ipc.h
    879 //----------------------------------------------------------------------
    880 
    881 struct vki_ipc_kludge {
    882 	struct vki_msgbuf __user *msgp;
    883 	long msgtyp;
    884 };
    885 
    886 #define VKI_SEMOP	 1
    887 #define VKI_SEMGET	 2
    888 #define VKI_SEMCTL	 3
    889 #define VKI_SEMTIMEDOP	 4
    890 #define VKI_MSGSND	11
    891 #define VKI_MSGRCV	12
    892 #define VKI_MSGGET	13
    893 #define VKI_MSGCTL	14
    894 #define VKI_SHMAT	21
    895 #define VKI_SHMDT	22
    896 #define VKI_SHMGET	23
    897 #define VKI_SHMCTL	24
    898 
    899 
    900 //----------------------------------------------------------------------
    901 // From linux-2.6.16.60/include/asm-s390/shmbuf.h
    902 //----------------------------------------------------------------------
    903 
    904 struct vki_shmid64_ds {
    905 	struct vki_ipc64_perm	shm_perm;	/* operation perms */
    906 	vki_size_t		shm_segsz;	/* size of segment (bytes) */
    907 	__vki_kernel_time_t	shm_atime;	/* last attach time */
    908 #ifndef VGA_s390x
    909 	unsigned long		__unused1;
    910 #endif /* ! VGA_s390x */
    911 	__vki_kernel_time_t	shm_dtime;	/* last detach time */
    912 #ifndef VGA_s390x
    913 	unsigned long		__unused2;
    914 #endif /* ! VGA_s390x */
    915 	__vki_kernel_time_t	shm_ctime;	/* last change time */
    916 #ifndef VGA_s390x
    917 	unsigned long		__unused3;
    918 #endif /* ! VGA_s390x */
    919 	__vki_kernel_pid_t	shm_cpid;	/* pid of creator */
    920 	__vki_kernel_pid_t	shm_lpid;	/* pid of last operator */
    921 	unsigned long		shm_nattch;	/* no. of current attaches */
    922 	unsigned long		__unused4;
    923 	unsigned long		__unused5;
    924 };
    925 
    926 struct vki_shminfo64 {
    927 	unsigned long	shmmax;
    928 	unsigned long	shmmin;
    929 	unsigned long	shmmni;
    930 	unsigned long	shmseg;
    931 	unsigned long	shmall;
    932 	unsigned long	__unused1;
    933 	unsigned long	__unused2;
    934 	unsigned long	__unused3;
    935 	unsigned long	__unused4;
    936 };
    937 
    938 
    939 //----------------------------------------------------------------------
    940 // The following are defined in the VKI namespace but are nowhere found
    941 // in the linux headers.
    942 //----------------------------------------------------------------------
    943 #define VKI_BIG_ENDIAN      1
    944 #define VKI_MAX_PAGE_SHIFT  VKI_PAGE_SHIFT
    945 #define VKI_MAX_PAGE_SIZE   VKI_PAGE_SIZE
    946 
    947 //----------------------------------------------------------------------
    948 // From linux-2.6.35.4/arch/s390x/include/asm/shmparam.h
    949 //----------------------------------------------------------------------
    950 
    951 #define VKI_SHMLBA  VKI_PAGE_SIZE
    952 
    953 /* If a system call returns a value >= VKI_MAX_ERRNO then that is considered
    954    an error condition. I.e. the system call failed. */
    955 #define VKI_MAX_ERRNO       -125
    956 
    957 #endif // __VKI_S390X_LINUX_H
    958 
    959 /*--------------------------------------------------------------------*/
    960 /*--- end                                                          ---*/
    961 /*--------------------------------------------------------------------*/
    962