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      1 
      2 /*--------------------------------------------------------------------*/
      3 /*--- ARM64/Linux-specific kernel interface.     vki-arm64-linux.h ---*/
      4 /*--------------------------------------------------------------------*/
      5 
      6 /*
      7    This file is part of Valgrind, a dynamic binary instrumentation
      8    framework.
      9 
     10    Copyright (C) 2013-2017 OpenWorks
     11       info (at) open-works.net
     12 
     13    This program is free software; you can redistribute it and/or
     14    modify it under the terms of the GNU General Public License as
     15    published by the Free Software Foundation; either version 2 of the
     16    License, or (at your option) any later version.
     17 
     18    This program is distributed in the hope that it will be useful, but
     19    WITHOUT ANY WARRANTY; without even the implied warranty of
     20    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     21    General Public License for more details.
     22 
     23    You should have received a copy of the GNU General Public License
     24    along with this program; if not, write to the Free Software
     25    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
     26    02111-1307, USA.
     27 
     28    The GNU General Public License is contained in the file COPYING.
     29 */
     30 
     31 #ifndef __VKI_ARM64_LINUX_H
     32 #define __VKI_ARM64_LINUX_H
     33 
     34 // ARM64 is little-endian.
     35 #define VKI_LITTLE_ENDIAN  1
     36 
     37 //----------------------------------------------------------------------
     38 // From linux-3.9.9/include/uapi/asm-generic/int-ll64.h
     39 //----------------------------------------------------------------------
     40 
     41 typedef unsigned char __vki_u8;
     42 
     43 typedef __signed__ short __vki_s16;
     44 typedef unsigned short __vki_u16;
     45 
     46 typedef __signed__ int __vki_s32;
     47 typedef unsigned int __vki_u32;
     48 
     49 typedef __signed__ long long __vki_s64;
     50 typedef unsigned long long __vki_u64;
     51 
     52 typedef unsigned short vki_u16;
     53 
     54 typedef unsigned int vki_u32;
     55 
     56 //----------------------------------------------------------------------
     57 // From linux-3.9.9/arch/arm64/include/asm/page.h
     58 //----------------------------------------------------------------------
     59 
     60 /* Looks like arm64 can do both 4k and 64k pages, so we
     61    use the at-startup detection scheme that ppc32/64 do. */
     62 extern UWord VKI_PAGE_SHIFT;
     63 extern UWord VKI_PAGE_SIZE;
     64 #define VKI_MAX_PAGE_SHIFT	16
     65 #define VKI_MAX_PAGE_SIZE	(1UL << VKI_MAX_PAGE_SHIFT)
     66 
     67 //----------------------------------------------------------------------
     68 // From linux-3.10.5/arch/arm64/include/asm/shmparam.h
     69 //----------------------------------------------------------------------
     70 
     71 // Trying to make sense of this .. it seems as if, for doing
     72 // shared memory with 64 bit processes, VKI_PAGE_SIZE is good
     73 // enough.  But if sharing with a 32 bit process then we need
     74 // the old-style 16k value (4 * VKI_PAGE_SIZE) to be safe.
     75 // (From reading between the lines of arch/arm64/include/asm/shmparam.h)
     76 #define VKI_SHMLBA  (4 * VKI_PAGE_SIZE)
     77 
     78 //----------------------------------------------------------------------
     79 // From linux-3.10.5/include/uapi/asm-generic/signal.h
     80 //----------------------------------------------------------------------
     81 
     82 #define _VKI_NSIG	64
     83 #define _VKI_NSIG_BPW	64
     84 #define _VKI_NSIG_WORDS	(_VKI_NSIG / _VKI_NSIG_BPW)
     85 
     86 typedef unsigned long vki_old_sigset_t;
     87 
     88 typedef struct {
     89 	unsigned long sig[_VKI_NSIG_WORDS];
     90 } vki_sigset_t;
     91 
     92 #define VKI_SIGHUP		 1
     93 #define VKI_SIGINT		 2
     94 #define VKI_SIGQUIT		 3
     95 #define VKI_SIGILL		 4
     96 #define VKI_SIGTRAP		 5
     97 #define VKI_SIGABRT		 6
     98 #define VKI_SIGBUS		 7
     99 #define VKI_SIGFPE		 8
    100 #define VKI_SIGKILL		 9
    101 #define VKI_SIGUSR1		10
    102 #define VKI_SIGSEGV		11
    103 #define VKI_SIGUSR2		12
    104 #define VKI_SIGPIPE		13
    105 #define VKI_SIGALRM		14
    106 #define VKI_SIGTERM		15
    107 #define VKI_SIGSTKFLT		16
    108 #define VKI_SIGCHLD		17
    109 #define VKI_SIGCONT		18
    110 #define VKI_SIGSTOP		19
    111 #define VKI_SIGTSTP		20
    112 #define VKI_SIGTTIN		21
    113 #define VKI_SIGTTOU		22
    114 #define VKI_SIGURG		23
    115 #define VKI_SIGXCPU		24
    116 #define VKI_SIGXFSZ		25
    117 #define VKI_SIGVTALRM		26
    118 #define VKI_SIGPROF		27
    119 #define VKI_SIGWINCH		28
    120 #define VKI_SIGIO		29
    121 #define VKI_SIGPWR		30
    122 #define VKI_SIGSYS		31
    123 #define	VKI_SIGUNUSED		31
    124 
    125 #define VKI_SIGRTMIN		32
    126 #define VKI_SIGRTMAX		_VKI_NSIG
    127 
    128 #define VKI_SA_NOCLDSTOP	0x00000001
    129 #define VKI_SA_NOCLDWAIT	0x00000002
    130 #define VKI_SA_SIGINFO		0x00000004
    131 #define VKI_SA_ONSTACK		0x08000000
    132 #define VKI_SA_RESTART		0x10000000
    133 #define VKI_SA_NODEFER		0x40000000
    134 #define VKI_SA_RESETHAND	0x80000000
    135 
    136 #define VKI_SA_NOMASK	VKI_SA_NODEFER
    137 #define VKI_SA_ONESHOT	VKI_SA_RESETHAND
    138 
    139 // This is obsolete and should not be defined for new archs
    140 #define VKI_SA_RESTORER	0x04000000
    141 
    142 #define VKI_SS_ONSTACK	1
    143 #define VKI_SS_DISABLE	2
    144 
    145 #define VKI_MINSIGSTKSZ	2048
    146 
    147 #define VKI_SIG_BLOCK          0	/* for blocking signals */
    148 #define VKI_SIG_UNBLOCK        1	/* for unblocking signals */
    149 #define VKI_SIG_SETMASK        2	/* for setting the signal mask */
    150 
    151 typedef void __vki_signalfn_t(int);
    152 typedef __vki_signalfn_t __user *__vki_sighandler_t;
    153 
    154 typedef void __vki_restorefn_t(void);
    155 typedef __vki_restorefn_t __user *__vki_sigrestore_t;
    156 
    157 #define VKI_SIG_DFL	((__vki_sighandler_t)0)	/* default signal handling */
    158 #define VKI_SIG_IGN	((__vki_sighandler_t)1)	/* ignore signal */
    159 
    160 struct vki_sigaction_base {
    161         // [[Nb: a 'k' prefix is added to "sa_handler" because
    162         // bits/sigaction.h (which gets dragged in somehow via signal.h)
    163         // #defines it as something else.  Since that is done for glibc's
    164         // purposes, which we don't care about here, we use our own name.]]
    165 	__vki_sighandler_t ksa_handler;
    166 	unsigned long sa_flags;
    167         __vki_sigrestore_t sa_restorer; // I don't think arm64 has this
    168 	vki_sigset_t sa_mask;		/* mask last for extensibility */
    169 };
    170 
    171 /* On Linux we use the same type for passing sigactions to
    172    and from the kernel.  Hence: */
    173 typedef  struct vki_sigaction_base  vki_sigaction_toK_t;
    174 typedef  struct vki_sigaction_base  vki_sigaction_fromK_t;
    175 
    176 
    177 typedef struct vki_sigaltstack {
    178 	void __user *ss_sp;
    179 	int ss_flags;
    180 	vki_size_t ss_size;
    181 } vki_stack_t;
    182 
    183 //----------------------------------------------------------------------
    184 // From linux-3.10.5/arch/arm64/include/uapi/asm/sigcontext.h
    185 //----------------------------------------------------------------------
    186 
    187 struct vki_sigcontext {
    188         __vki_u64 fault_address;
    189         /* AArch64 registers */
    190         __vki_u64 regs[31];
    191         __vki_u64 sp;
    192         __vki_u64 pc;
    193         __vki_u64 pstate;
    194         /* 4K reserved for FP/SIMD state and future expansion */
    195         __vki_u8 __reserved[4096] __attribute__((__aligned__(16)));
    196 };
    197 
    198 //----------------------------------------------------------------------
    199 // From linux-3.10.5/uapi/include/asm-generic/mman-common.h
    200 //----------------------------------------------------------------------
    201 
    202 #define VKI_PROT_READ	0x1		/* page can be read */
    203 #define VKI_PROT_WRITE	0x2		/* page can be written */
    204 #define VKI_PROT_EXEC	0x4		/* page can be executed */
    205 #define VKI_PROT_NONE	0x0		/* page can not be accessed */
    206 #define VKI_PROT_GROWSDOWN	0x01000000	/* mprotect flag: extend change to start of growsdown vma */
    207 #define VKI_PROT_GROWSUP	0x02000000	/* mprotect flag: extend change to end of growsup vma */
    208 
    209 #define VKI_MAP_SHARED	0x01		/* Share changes */
    210 #define VKI_MAP_PRIVATE	0x02		/* Changes are private */
    211 #define VKI_MAP_FIXED	0x10		/* Interpret addr exactly */
    212 #define VKI_MAP_ANONYMOUS	0x20	/* don't use a file */
    213 #define VKI_MAP_NORESERVE       0x4000  /* don't check for reservations */
    214 
    215 //----------------------------------------------------------------------
    216 // From linux-3.10.5/uapi/include/asm-generic/fcntl.h
    217 //----------------------------------------------------------------------
    218 
    219 #define VKI_O_ACCMODE	     03
    220 #define VKI_O_RDONLY	     00
    221 #define VKI_O_WRONLY	     01
    222 #define VKI_O_RDWR	     02
    223 #define VKI_O_CREAT	   0100	/* not fcntl */
    224 #define VKI_O_EXCL	   0200	/* not fcntl */
    225 #define VKI_O_TRUNC	  01000	/* not fcntl */
    226 #define VKI_O_APPEND	  02000
    227 #define VKI_O_NONBLOCK	  04000
    228 #define VKI_O_LARGEFILE	0100000
    229 
    230 #define VKI_AT_FDCWD            -100
    231 
    232 #define VKI_F_DUPFD		0	/* dup */
    233 #define VKI_F_GETFD		1	/* get close_on_exec */
    234 #define VKI_F_SETFD		2	/* set/clear close_on_exec */
    235 #define VKI_F_GETFL		3	/* get file->f_flags */
    236 #define VKI_F_SETFL		4	/* set file->f_flags */
    237 #define VKI_F_GETLK		5
    238 #define VKI_F_SETLK		6
    239 #define VKI_F_SETLKW		7
    240 
    241 #define VKI_F_SETOWN		8	/*  for sockets. */
    242 #define VKI_F_GETOWN		9	/*  for sockets. */
    243 #define VKI_F_SETSIG		10	/*  for sockets. */
    244 #define VKI_F_GETSIG		11	/*  for sockets. */
    245 
    246 #define VKI_F_SETOWN_EX		15
    247 #define VKI_F_GETOWN_EX		16
    248 
    249 #define VKI_F_OFD_GETLK		36
    250 #define VKI_F_OFD_SETLK		37
    251 #define VKI_F_OFD_SETLKW	38
    252 
    253 #define VKI_F_OWNER_TID		0
    254 #define VKI_F_OWNER_PID		1
    255 #define VKI_F_OWNER_PGRP	2
    256 
    257 struct vki_f_owner_ex {
    258 	int	type;
    259 	__vki_kernel_pid_t	pid;
    260 };
    261 
    262 #define VKI_FD_CLOEXEC	1	/* actually anything with low bit set goes */
    263 
    264 #define VKI_F_LINUX_SPECIFIC_BASE	1024
    265 
    266 //----------------------------------------------------------------------
    267 // From linux-3.10.5/include/uapi/asm-generic/resource.h
    268 //----------------------------------------------------------------------
    269 
    270 #define VKI_RLIMIT_DATA		2	/* max data size */
    271 #define VKI_RLIMIT_STACK	3	/* max stack size */
    272 #define VKI_RLIMIT_CORE		4	/* max core file size */
    273 #define VKI_RLIMIT_NOFILE	7	/* max number of open files */
    274 
    275 //----------------------------------------------------------------------
    276 // From linux-3.10.5/include/uapi/asm-generic/socket.h
    277 //----------------------------------------------------------------------
    278 
    279 #define VKI_SOL_SOCKET	1
    280 
    281 #define VKI_SO_TYPE	3
    282 
    283 #define VKI_SO_ATTACH_FILTER	26
    284 
    285 //----------------------------------------------------------------------
    286 // From linux-3.10.5/include/uapi/asm-generic/sockios.h
    287 //----------------------------------------------------------------------
    288 
    289 #define VKI_SIOCSPGRP		0x8902
    290 #define VKI_SIOCGPGRP		0x8904
    291 #define VKI_SIOCATMARK		0x8905
    292 #define VKI_SIOCGSTAMP		0x8906		/* Get stamp (timeval) */
    293 #define VKI_SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
    294 
    295 //----------------------------------------------------------------------
    296 // From linux-3.10.5/include/uapi/asm-generic/stat.h
    297 //----------------------------------------------------------------------
    298 
    299 struct vki_stat {
    300         unsigned long   st_dev;
    301         unsigned long   st_ino;
    302         unsigned int    st_mode;
    303         unsigned int    st_nlink;
    304         unsigned int    st_uid;
    305         unsigned int    st_gid;
    306         unsigned long   st_rdev;
    307         unsigned long   __pad1;
    308         long            st_size;
    309         int             st_blksize;
    310         int             __pad2;
    311         long            st_blocks;
    312         long            st_atime;
    313         unsigned long   st_atime_nsec;
    314         long            st_mtime;
    315         unsigned long   st_mtime_nsec;
    316         long            st_ctime;
    317         unsigned long   st_ctime_nsec;
    318         unsigned int    __unused4;
    319         unsigned int    __unused5;
    320 };
    321 
    322 //----------------------------------------------------------------------
    323 // From linux-3.10.5/include/uapi/asm-generic/statfs.h
    324 //----------------------------------------------------------------------
    325 
    326 struct vki_statfs {
    327 	long f_type;
    328 	long f_bsize;
    329 	long f_blocks;
    330 	long f_bfree;
    331 	long f_bavail;
    332 	long f_files;
    333 	long f_ffree;
    334 	__vki_kernel_fsid_t f_fsid;
    335 	long f_namelen;
    336 	long f_frsize;
    337 	long f_flags;
    338 	long f_spare[4];
    339 };
    340 
    341 //----------------------------------------------------------------------
    342 // From linux-3.10.5/include/uapi/asm-generic/termios.h
    343 //----------------------------------------------------------------------
    344 
    345 struct vki_winsize {
    346 	unsigned short ws_row;
    347 	unsigned short ws_col;
    348 	unsigned short ws_xpixel;
    349 	unsigned short ws_ypixel;
    350 };
    351 
    352 #define VKI_NCC 8
    353 struct vki_termio {
    354 	unsigned short c_iflag;		/* input mode flags */
    355 	unsigned short c_oflag;		/* output mode flags */
    356 	unsigned short c_cflag;		/* control mode flags */
    357 	unsigned short c_lflag;		/* local mode flags */
    358 	unsigned char c_line;		/* line discipline */
    359 	unsigned char c_cc[VKI_NCC];	/* control characters */
    360 };
    361 
    362 //----------------------------------------------------------------------
    363 // From linux-3.10.5/include/uapi/asm-generic/termbits.h
    364 //----------------------------------------------------------------------
    365 
    366 typedef unsigned char	vki_cc_t;
    367 typedef unsigned int	vki_tcflag_t;
    368 
    369 #define VKI_NCCS 19
    370 struct vki_termios {
    371 	vki_tcflag_t c_iflag;		/* input mode flags */
    372 	vki_tcflag_t c_oflag;		/* output mode flags */
    373 	vki_tcflag_t c_cflag;		/* control mode flags */
    374 	vki_tcflag_t c_lflag;		/* local mode flags */
    375 	vki_cc_t c_line;		/* line discipline */
    376 	vki_cc_t c_cc[VKI_NCCS];	/* control characters */
    377 };
    378 
    379 //----------------------------------------------------------------------
    380 // From linux-3.9.9/include/uapi/asm-generic/ioctl.h
    381 //----------------------------------------------------------------------
    382 
    383 #define _VKI_IOC_NRBITS		8
    384 #define _VKI_IOC_TYPEBITS	8
    385 #define _VKI_IOC_SIZEBITS	14
    386 #define _VKI_IOC_DIRBITS	2
    387 
    388 #define _VKI_IOC_SIZEMASK	((1 << _VKI_IOC_SIZEBITS)-1)
    389 #define _VKI_IOC_DIRMASK	((1 << _VKI_IOC_DIRBITS)-1)
    390 
    391 #define _VKI_IOC_NRSHIFT	0
    392 #define _VKI_IOC_TYPESHIFT	(_VKI_IOC_NRSHIFT+_VKI_IOC_NRBITS)
    393 #define _VKI_IOC_SIZESHIFT	(_VKI_IOC_TYPESHIFT+_VKI_IOC_TYPEBITS)
    394 #define _VKI_IOC_DIRSHIFT	(_VKI_IOC_SIZESHIFT+_VKI_IOC_SIZEBITS)
    395 
    396 #define _VKI_IOC_NONE	0U
    397 #define _VKI_IOC_WRITE	1U
    398 #define _VKI_IOC_READ	2U
    399 
    400 #define _VKI_IOC(dir,type,nr,size) \
    401 	(((dir)  << _VKI_IOC_DIRSHIFT) | \
    402 	 ((type) << _VKI_IOC_TYPESHIFT) | \
    403 	 ((nr)   << _VKI_IOC_NRSHIFT) | \
    404 	 ((size) << _VKI_IOC_SIZESHIFT))
    405 
    406 #define _VKI_IO(type,nr)	_VKI_IOC(_VKI_IOC_NONE,(type),(nr),0)
    407 #define _VKI_IOR(type,nr,size)	_VKI_IOC(_VKI_IOC_READ,(type),(nr),sizeof(size))
    408 #define _VKI_IOW(type,nr,size)	_VKI_IOC(_VKI_IOC_WRITE,(type),(nr),sizeof(size))
    409 #define _VKI_IOWR(type,nr,size)	_VKI_IOC(_VKI_IOC_READ|_VKI_IOC_WRITE,(type),(nr),sizeof(size))
    410 
    411 #define _VKI_IOC_DIR(nr)		(((nr) >> _VKI_IOC_DIRSHIFT) & _VKI_IOC_DIRMASK)
    412 #define _VKI_IOC_SIZE(nr)		(((nr) >> _VKI_IOC_SIZESHIFT) & _VKI_IOC_SIZEMASK)
    413 
    414 //----------------------------------------------------------------------
    415 // From linux-3.10.5/include/uapi/asm-generic/ioctls.h
    416 //----------------------------------------------------------------------
    417 
    418 #define VKI_TCGETS	0x5401
    419 #define VKI_TCSETS	0x5402
    420 #define VKI_TCSETSW	0x5403
    421 #define VKI_TCSETSF	0x5404
    422 #define VKI_TCGETA	0x5405
    423 #define VKI_TCSETA	0x5406
    424 #define VKI_TCSETAW	0x5407
    425 #define VKI_TCSETAF	0x5408
    426 #define VKI_TCSBRK	0x5409
    427 #define VKI_TCXONC	0x540A
    428 #define VKI_TCFLSH	0x540B
    429 #define VKI_TIOCSCTTY	0x540E
    430 #define VKI_TIOCGPGRP	0x540F
    431 #define VKI_TIOCSPGRP	0x5410
    432 #define VKI_TIOCOUTQ	0x5411
    433 #define VKI_TIOCGWINSZ	0x5413
    434 #define VKI_TIOCSWINSZ	0x5414
    435 #define VKI_TIOCMGET	0x5415
    436 #define VKI_TIOCMBIS	0x5416
    437 #define VKI_TIOCMBIC	0x5417
    438 #define VKI_TIOCMSET	0x5418
    439 #define VKI_FIONREAD	0x541B
    440 #define VKI_TIOCLINUX	0x541C
    441 #define VKI_FIONBIO	0x5421
    442 #define VKI_TIOCNOTTY	0x5422
    443 #define VKI_TCSBRKP	0x5425
    444 #define VKI_TIOCGPTN	_VKI_IOR('T',0x30, unsigned int)
    445 #define VKI_TIOCSPTLCK	_VKI_IOW('T',0x31, int)
    446 
    447 #define VKI_FIONCLEX    0x5450
    448 #define VKI_FIOCLEX     0x5451
    449 #define VKI_FIOASYNC	0x5452
    450 #define VKI_TIOCSERGETLSR   0x5459
    451 
    452 #define VKI_TIOCGICOUNT	0x545D
    453 
    454 //----------------------------------------------------------------------
    455 // From linux-3.9.9/include/uapi/asm-generic/poll.h
    456 //----------------------------------------------------------------------
    457 
    458 #define VKI_POLLIN		0x0001
    459 
    460 struct vki_pollfd {
    461 	int fd;
    462 	short events;
    463 	short revents;
    464 };
    465 
    466 //----------------------------------------------------------------------
    467 // From linux-3.10.5/arch/arm64/include/uapi/asm/ptrace.h
    468 //----------------------------------------------------------------------
    469 
    470 //ZZ struct vki_user_i387_struct {
    471 //ZZ 	unsigned short	cwd;
    472 //ZZ 	unsigned short	swd;
    473 //ZZ 	unsigned short	twd; /* Note this is not the same as the 32bit/x87/FSAVE twd */
    474 //ZZ 	unsigned short	fop;
    475 //ZZ 	__vki_u64	rip;
    476 //ZZ 	__vki_u64	rdp;
    477 //ZZ 	__vki_u32	mxcsr;
    478 //ZZ 	__vki_u32	mxcsr_mask;
    479 //ZZ 	__vki_u32	st_space[32];	/* 8*16 bytes for each FP-reg = 128 bytes */
    480 //ZZ 	__vki_u32	xmm_space[64];	/* 16*16 bytes for each XMM-reg = 256 bytes */
    481 //ZZ 	__vki_u32	padding[24];
    482 //ZZ };
    483 //ZZ
    484 //ZZ struct vki_user_regs_struct {
    485 //ZZ 	unsigned long r15,r14,r13,r12,rbp,rbx,r11,r10;
    486 //ZZ 	unsigned long r9,r8,rax,rcx,rdx,rsi,rdi,orig_rax;
    487 //ZZ 	unsigned long rip,cs,eflags;
    488 //ZZ 	unsigned long rsp,ss;
    489 //ZZ   	unsigned long fs_base, gs_base;
    490 //ZZ 	unsigned long ds,es,fs,gs;
    491 //ZZ };
    492 
    493 struct vki_user_pt_regs {
    494         __vki_u64           regs[31];
    495         __vki_u64           sp;
    496         __vki_u64           pc;
    497         __vki_u64           pstate;
    498 };
    499 
    500 /* I think that the new name in the kernel for these is "user_pt_regs"
    501    and the old name is "user_regs_struct".  Unfortunately can't clone
    502    a 'struct' type using 'typedef' and still have a 'struct' type, so
    503    use a blunter instrument instead. */
    504 #define vki_user_regs_struct vki_user_pt_regs
    505 
    506 struct vki_user_fpsimd_state {
    507         __uint128_t     vregs[32];
    508         __vki_u32           fpsr;
    509         __vki_u32           fpcr;
    510 };
    511 
    512 //----------------------------------------------------------------------
    513 // From linux-3.9.9/arch/arm64/include/asm/elf.h
    514 //----------------------------------------------------------------------
    515 
    516 typedef unsigned long vki_elf_greg_t;
    517 
    518 #define VKI_ELF_NGREG (sizeof (struct vki_user_pt_regs) / sizeof(vki_elf_greg_t))
    519 typedef vki_elf_greg_t vki_elf_gregset_t[VKI_ELF_NGREG];
    520 
    521 typedef struct vki_user_fpsimd_state vki_elf_fpregset_t;
    522 
    523 //----------------------------------------------------------------------
    524 // From linux-3.10.5/arch/arm64/include/asm/ucontext.h
    525 //----------------------------------------------------------------------
    526 
    527 struct vki_ucontext {
    528         unsigned long           uc_flags;
    529         struct vki_ucontext    *uc_link;
    530         vki_stack_t             uc_stack;
    531         vki_sigset_t            uc_sigmask;
    532         /* glibc uses a 1024-bit sigset_t */
    533         __vki_u8                __unused0[1024 / 8 - sizeof(vki_sigset_t)];
    534         /* last for future expansion */
    535         struct vki_sigcontext   uc_mcontext;
    536 };
    537 
    538 //ZZ //----------------------------------------------------------------------
    539 //ZZ // From linux-2.6.9/include/asm-x86_64/segment.h
    540 //ZZ //----------------------------------------------------------------------
    541 //ZZ
    542 //ZZ #define VKI_GDT_ENTRY_TLS_ENTRIES 3
    543 //ZZ
    544 //ZZ #define VKI_GDT_ENTRY_TLS_MIN 11
    545 //ZZ #define VKI_GDT_ENTRY_TLS_MAX 13
    546 //ZZ
    547 //ZZ //----------------------------------------------------------------------
    548 //ZZ // From linux-2.6.11.9/include/asm-x86_64/prctl.h
    549 //ZZ //----------------------------------------------------------------------
    550 //ZZ
    551 //ZZ #define VKI_ARCH_SET_GS 0x1001
    552 //ZZ #define VKI_ARCH_SET_FS 0x1002
    553 //ZZ #define VKI_ARCH_GET_FS 0x1003
    554 //ZZ #define VKI_ARCH_GET_GS 0x1004
    555 //ZZ
    556 //ZZ //----------------------------------------------------------------------
    557 //ZZ // From linux-2.6.9/include/asm-x86_64/ldt.h
    558 //ZZ //----------------------------------------------------------------------
    559 //ZZ
    560 //ZZ // I think this LDT stuff will have to be reinstated for amd64, but I'm not
    561 //ZZ // certain.  (Nb: The sys_arch_prctl seems to have replaced
    562 //ZZ // [gs]et_thread_area syscalls.)
    563 //ZZ //
    564 //ZZ // Note that the type here is very slightly different to the
    565 //ZZ // type for x86 (the final 'lm' field is added);  I'm not sure about the
    566 //ZZ // significance of that... --njn
    567 //ZZ
    568 //ZZ /* [[Nb: This is the structure passed to the modify_ldt syscall.  Just so as
    569 //ZZ    to confuse and annoy everyone, this is _not_ the same as an
    570 //ZZ    VgLdtEntry and has to be translated into such.  The logic for doing
    571 //ZZ    so, in vg_ldt.c, is copied from the kernel sources.]] */
    572 //ZZ /* Note also that a comment in ldt.h indicates that the below
    573 //ZZ    contains several fields ignored on 64bit, and that modify_ldt
    574 //ZZ    is rather for 32bit. */
    575 //ZZ struct vki_user_desc {
    576 //ZZ 	unsigned int  entry_number;
    577 //ZZ 	unsigned long base_addr;
    578 //ZZ 	unsigned int  limit;
    579 //ZZ 	unsigned int  seg_32bit:1;
    580 //ZZ 	unsigned int  contents:2;
    581 //ZZ 	unsigned int  read_exec_only:1;
    582 //ZZ 	unsigned int  limit_in_pages:1;
    583 //ZZ 	unsigned int  seg_not_present:1;
    584 //ZZ 	unsigned int  useable:1;
    585 //ZZ         unsigned int  lm:1;
    586 //ZZ };
    587 //ZZ
    588 //ZZ // [[Nb: for our convenience within Valgrind, use a more specific name]]
    589 
    590 typedef char vki_modify_ldt_t;
    591 
    592 //----------------------------------------------------------------------
    593 // From linux-3.10.5/include/asm-generic/ipcbuf.h
    594 //----------------------------------------------------------------------
    595 
    596 struct vki_ipc64_perm
    597 {
    598 	__vki_kernel_key_t	key;
    599 	__vki_kernel_uid32_t	uid;
    600 	__vki_kernel_gid32_t	gid;
    601 	__vki_kernel_uid32_t	cuid;
    602 	__vki_kernel_gid32_t	cgid;
    603 	__vki_kernel_mode_t	mode;
    604         unsigned char           __pad1[4 - sizeof(__vki_kernel_mode_t)];
    605 	unsigned short		seq;
    606 	unsigned short		__pad2;
    607 	unsigned long		__unused1;
    608 	unsigned long		__unused2;
    609 };
    610 
    611 //----------------------------------------------------------------------
    612 // From linux-3.10.5/include/uapi/asm-generic/sembuf.h
    613 //----------------------------------------------------------------------
    614 
    615 struct vki_semid64_ds {
    616 	struct vki_ipc64_perm sem_perm;		/* permissions .. see ipc.h */
    617 	__vki_kernel_time_t	sem_otime;		/* last semop time */
    618 	__vki_kernel_time_t	sem_ctime;		/* last change time */
    619 	unsigned long	sem_nsems;		/* no. of semaphores in array */
    620 	unsigned long	__unused3;
    621 	unsigned long	__unused4;
    622 };
    623 
    624 //----------------------------------------------------------------------
    625 // From linux-3.10.5/include/uapi/asm-generic/msgbuf.h
    626 //----------------------------------------------------------------------
    627 
    628 struct vki_msqid64_ds {
    629 	struct vki_ipc64_perm msg_perm;
    630 	__vki_kernel_time_t msg_stime;	/* last msgsnd time */
    631 	__vki_kernel_time_t msg_rtime;	/* last msgrcv time */
    632 	__vki_kernel_time_t msg_ctime;	/* last change time */
    633 	unsigned long  msg_cbytes;	/* current number of bytes on queue */
    634 	unsigned long  msg_qnum;	/* number of messages in queue */
    635 	unsigned long  msg_qbytes;	/* max number of bytes on queue */
    636 	__vki_kernel_pid_t msg_lspid;	/* pid of last msgsnd */
    637 	__vki_kernel_pid_t msg_lrpid;	/* last receive pid */
    638 	unsigned long  __unused4;
    639 	unsigned long  __unused5;
    640 };
    641 
    642 //----------------------------------------------------------------------
    643 // From linux-3.10.5/include/uapi/asm-generic/shmbuf.h
    644 //----------------------------------------------------------------------
    645 
    646 struct vki_shmid64_ds {
    647 	struct vki_ipc64_perm	shm_perm;	/* operation perms */
    648 	vki_size_t		shm_segsz;	/* size of segment (bytes) */
    649 	__vki_kernel_time_t	shm_atime;	/* last attach time */
    650 	__vki_kernel_time_t	shm_dtime;	/* last detach time */
    651 	__vki_kernel_time_t	shm_ctime;	/* last change time */
    652 	__vki_kernel_pid_t	shm_cpid;	/* pid of creator */
    653 	__vki_kernel_pid_t	shm_lpid;	/* pid of last operator */
    654 	unsigned long		shm_nattch;	/* no. of current attaches */
    655 	unsigned long		__unused4;
    656 	unsigned long		__unused5;
    657 };
    658 
    659 struct vki_shminfo64 {
    660 	unsigned long	shmmax;
    661 	unsigned long	shmmin;
    662 	unsigned long	shmmni;
    663 	unsigned long	shmseg;
    664 	unsigned long	shmall;
    665 	unsigned long	__unused1;
    666 	unsigned long	__unused2;
    667 	unsigned long	__unused3;
    668 	unsigned long	__unused4;
    669 };
    670 
    671 //----------------------------------------------------------------------
    672 // From linux-3.9.9/arch/arm64/include/asm/ptrace.h
    673 //----------------------------------------------------------------------
    674 
    675 #define VKI_PTRACE_GETREGS            12
    676 #define VKI_PTRACE_SETREGS            13
    677 //#define VKI_PTRACE_GETFPREGS          14
    678 //#define VKI_PTRACE_SETFPREGS          15
    679 
    680 //----------------------------------------------------------------------
    681 // From linux-2.6.8.1/include/asm-generic/errno.h
    682 //----------------------------------------------------------------------
    683 
    684 #define	VKI_ENOSYS       38  /* Function not implemented */
    685 #define	VKI_EOVERFLOW    75  /* Value too large for defined data type */
    686 
    687 //----------------------------------------------------------------------
    688 // From linux-3.19.0/include/uapi/asm-generic/ioctls.h
    689 //----------------------------------------------------------------------
    690 
    691 #define VKI_TIOCGSERIAL     0x541E
    692 #define VKI_TIOCSSERIAL     0x541F
    693 
    694 //----------------------------------------------------------------------
    695 // And that's it!
    696 //----------------------------------------------------------------------
    697 
    698 #endif // __VKI_ARM64_LINUX_H
    699 
    700 /*--------------------------------------------------------------------*/
    701 /*--- end                                                          ---*/
    702 /*--------------------------------------------------------------------*/
    703