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1 
2 /*--------------------------------------------------------------------*/
3 /*--- x86/Linux-specific kernel interface.         vki-x86-linux.h ---*/
4 /*--------------------------------------------------------------------*/
5 
6 /*
7    This file is part of Valgrind, a dynamic binary instrumentation
8    framework.
9 
10    Copyright (C) 2000-2017 Julian Seward
11       jseward@acm.org
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_X86_LINUX_H
32 #define __VKI_X86_LINUX_H
33 
34 // x86 is little-endian.
35 #define VKI_LITTLE_ENDIAN  1
36 
37 //----------------------------------------------------------------------
38 // From linux-2.6.8.1/include/asm-i386/types.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-2.6.8.1/include/asm-i386/page.h
58 //----------------------------------------------------------------------
59 
60 /* PAGE_SHIFT determines the page size */
61 #define VKI_PAGE_SHIFT	12
62 #define VKI_PAGE_SIZE	(1UL << VKI_PAGE_SHIFT)
63 #define VKI_MAX_PAGE_SHIFT	VKI_PAGE_SHIFT
64 #define VKI_MAX_PAGE_SIZE	VKI_PAGE_SIZE
65 
66 //----------------------------------------------------------------------
67 // From linux-2.6.35.4/arch/x86/include/asm/shmparam.h
68 //----------------------------------------------------------------------
69 
70 #define VKI_SHMLBA  VKI_PAGE_SIZE
71 
72 //----------------------------------------------------------------------
73 // From linux-2.6.8.1/include/asm-i386/signal.h
74 //----------------------------------------------------------------------
75 
76 #define VKI_MINSIGSTKSZ	2048
77 
78 #define VKI_SIG_BLOCK          0	/* for blocking signals */
79 #define VKI_SIG_UNBLOCK        1	/* for unblocking signals */
80 #define VKI_SIG_SETMASK        2	/* for setting the signal mask */
81 
82 /* Type of a signal handler.  */
83 typedef void __vki_signalfn_t(int);
84 typedef __vki_signalfn_t __user *__vki_sighandler_t;
85 
86 typedef void __vki_restorefn_t(void);
87 typedef __vki_restorefn_t __user *__vki_sigrestore_t;
88 
89 #define VKI_SIG_DFL	((__vki_sighandler_t)0)	/* default signal handling */
90 #define VKI_SIG_IGN	((__vki_sighandler_t)1)	/* ignore signal */
91 
92 #define _VKI_NSIG	64
93 #define _VKI_NSIG_BPW	32
94 #define _VKI_NSIG_WORDS	(_VKI_NSIG / _VKI_NSIG_BPW)
95 
96 typedef unsigned long vki_old_sigset_t;		/* at least 32 bits */
97 
98 typedef struct {
99 	unsigned long sig[_VKI_NSIG_WORDS];
100 } vki_sigset_t;
101 
102 #define VKI_SIGHUP		 1
103 #define VKI_SIGINT		 2
104 #define VKI_SIGQUIT		 3
105 #define VKI_SIGILL		 4
106 #define VKI_SIGTRAP		 5
107 #define VKI_SIGABRT		 6
108 //#define VKI_SIGIOT		 6
109 #define VKI_SIGBUS		 7
110 #define VKI_SIGFPE		 8
111 #define VKI_SIGKILL		 9
112 #define VKI_SIGUSR1		10
113 #define VKI_SIGSEGV		11
114 #define VKI_SIGUSR2		12
115 #define VKI_SIGPIPE		13
116 #define VKI_SIGALRM		14
117 #define VKI_SIGTERM		15
118 #define VKI_SIGSTKFLT		16
119 #define VKI_SIGCHLD		17
120 #define VKI_SIGCONT		18
121 #define VKI_SIGSTOP		19
122 #define VKI_SIGTSTP		20
123 #define VKI_SIGTTIN		21
124 #define VKI_SIGTTOU		22
125 #define VKI_SIGURG		23
126 #define VKI_SIGXCPU		24
127 #define VKI_SIGXFSZ		25
128 #define VKI_SIGVTALRM		26
129 #define VKI_SIGPROF		27
130 #define VKI_SIGWINCH		28
131 #define VKI_SIGIO		29
132 #define VKI_SIGPWR		30
133 #define VKI_SIGSYS		31
134 #define	VKI_SIGUNUSED		31
135 
136 /* These should not be considered constants from userland.  */
137 #define VKI_SIGRTMIN	32
138 // [[This was (_NSIG-1) in 2.4.X... not sure if it matters.]]
139 #define VKI_SIGRTMAX	_VKI_NSIG
140 
141 #define VKI_SA_NOCLDSTOP	0x00000001u
142 #define VKI_SA_NOCLDWAIT	0x00000002u
143 #define VKI_SA_SIGINFO		0x00000004u
144 #define VKI_SA_ONSTACK		0x08000000u
145 #define VKI_SA_RESTART		0x10000000u
146 #define VKI_SA_NODEFER		0x40000000u
147 #define VKI_SA_RESETHAND	0x80000000u
148 
149 #define VKI_SA_NOMASK		VKI_SA_NODEFER
150 #define VKI_SA_ONESHOT		VKI_SA_RESETHAND
151 //#define VKI_SA_INTERRUPT	0x20000000 /* dummy -- ignored */
152 
153 #define VKI_SA_RESTORER		0x04000000
154 
155 #define VKI_SS_ONSTACK	1
156 #define VKI_SS_DISABLE	2
157 
158 /* These are 'legacy' sigactions in which the size of sa_mask is fixed
159    (cannot be expanded at any future point) because it is sandwiched
160    between two other fields.
161    (there is identical kludgery in vki-ppc32-linux.h) */
162 struct vki_old_sigaction {
163         // [[Nb: a 'k' prefix is added to "sa_handler" because
164         // bits/sigaction.h (which gets dragged in somehow via signal.h)
165         // #defines it as something else.  Since that is done for glibc's
166         // purposes, which we don't care about here, we use our own name.]]
167         __vki_sighandler_t ksa_handler;
168         vki_old_sigset_t sa_mask;
169         unsigned long sa_flags;
170         __vki_sigrestore_t sa_restorer;
171 };
172 
173 struct vki_sigaction_base {
174         // [[See comment about extra 'k' above]]
175 	__vki_sighandler_t ksa_handler;
176 	unsigned long sa_flags;
177 	__vki_sigrestore_t sa_restorer;
178 	vki_sigset_t sa_mask;		/* mask last for extensibility */
179 };
180 
181 /* On Linux we use the same type for passing sigactions to
182    and from the kernel.  Hence: */
183 typedef  struct vki_sigaction_base  vki_sigaction_toK_t;
184 typedef  struct vki_sigaction_base  vki_sigaction_fromK_t;
185 
186 
187 typedef struct vki_sigaltstack {
188 	void __user *ss_sp;
189 	int ss_flags;
190 	vki_size_t ss_size;
191 } vki_stack_t;
192 
193 //----------------------------------------------------------------------
194 // From linux-2.6.8.1/include/asm-i386/sigcontext.h
195 //----------------------------------------------------------------------
196 
197 struct _vki_fpreg {
198 	unsigned short significand[4];
199 	unsigned short exponent;
200 };
201 
202 struct _vki_fpxreg {
203 	unsigned short significand[4];
204 	unsigned short exponent;
205 	unsigned short padding[3];
206 };
207 
208 struct _vki_xmmreg {
209 	unsigned long element[4];
210 };
211 
212 struct _vki_fpstate {
213 	/* Regular FPU environment */
214 	unsigned long 	cw;
215 	unsigned long	sw;
216 	unsigned long	tag;
217 	unsigned long	ipoff;
218 	unsigned long	cssel;
219 	unsigned long	dataoff;
220 	unsigned long	datasel;
221 	struct _vki_fpreg	_st[8];
222 	unsigned short	status;
223 	unsigned short	magic;		/* 0xffff = regular FPU data only */
224 
225 	/* FXSR FPU environment */
226 	unsigned long	_fxsr_env[6];	/* FXSR FPU env is ignored */
227 	unsigned long	mxcsr;
228 	unsigned long	reserved;
229 	struct _vki_fpxreg	_fxsr_st[8];	/* FXSR FPU reg data is ignored */
230 	struct _vki_xmmreg	_xmm[8];
231 	unsigned long	padding[56];
232 };
233 
234 struct vki_sigcontext {
235 	unsigned short gs, __gsh;
236 	unsigned short fs, __fsh;
237 	unsigned short es, __esh;
238 	unsigned short ds, __dsh;
239 	unsigned long edi;
240 	unsigned long esi;
241 	unsigned long ebp;
242 	unsigned long esp;
243 	unsigned long ebx;
244 	unsigned long edx;
245 	unsigned long ecx;
246 	unsigned long eax;
247 	unsigned long trapno;
248 	unsigned long err;
249 	unsigned long eip;
250 	unsigned short cs, __csh;
251 	unsigned long eflags;
252 	unsigned long esp_at_signal;
253 	unsigned short ss, __ssh;
254 	struct _vki_fpstate __user * fpstate;
255 	unsigned long oldmask;
256 	unsigned long cr2;
257 };
258 
259 //----------------------------------------------------------------------
260 // From linux-2.6.8.1/include/asm-i386/mman.h
261 //----------------------------------------------------------------------
262 
263 #define VKI_PROT_NONE	0x0		/* No page permissions */
264 #define VKI_PROT_READ	0x1		/* page can be read */
265 #define VKI_PROT_WRITE	0x2		/* page can be written */
266 #define VKI_PROT_EXEC	0x4		/* page can be executed */
267 #define VKI_PROT_GROWSDOWN	0x01000000	/* mprotect flag: extend change to start of growsdown vma */
268 #define VKI_PROT_GROWSUP	0x02000000	/* mprotect flag: extend change to end of growsup vma */
269 
270 #define VKI_MAP_SHARED	0x01		/* Share changes */
271 #define VKI_MAP_PRIVATE	0x02		/* Changes are private */
272 //#define VKI_MAP_TYPE	0x0f		/* Mask for type of mapping */
273 #define VKI_MAP_FIXED	0x10		/* Interpret addr exactly */
274 #define VKI_MAP_ANONYMOUS	0x20	/* don't use a file */
275 #define VKI_MAP_NORESERVE	0x4000		/* don't check for reservations */
276 
277 //----------------------------------------------------------------------
278 // From linux-2.6.8.1/include/asm-i386/fcntl.h
279 //----------------------------------------------------------------------
280 
281 #define VKI_O_ACCMODE	     03
282 #define VKI_O_RDONLY	     00
283 #define VKI_O_WRONLY	     01
284 #define VKI_O_RDWR	     02
285 #define VKI_O_CREAT	   0100	/* not fcntl */
286 #define VKI_O_EXCL	   0200	/* not fcntl */
287 #define VKI_O_TRUNC	  01000	/* not fcntl */
288 #define VKI_O_APPEND	  02000
289 #define VKI_O_NONBLOCK	  04000
290 #define VKI_O_LARGEFILE	0100000
291 
292 #define VKI_AT_FDCWD            -100
293 
294 #define VKI_F_DUPFD		0	/* dup */
295 #define VKI_F_GETFD		1	/* get close_on_exec */
296 #define VKI_F_SETFD		2	/* set/clear close_on_exec */
297 #define VKI_F_GETFL		3	/* get file->f_flags */
298 #define VKI_F_SETFL		4	/* set file->f_flags */
299 #define VKI_F_GETLK		5
300 #define VKI_F_SETLK		6
301 #define VKI_F_SETLKW		7
302 
303 #define VKI_F_SETOWN		8	/*  for sockets. */
304 #define VKI_F_GETOWN		9	/*  for sockets. */
305 #define VKI_F_SETSIG		10	/*  for sockets. */
306 #define VKI_F_GETSIG		11	/*  for sockets. */
307 
308 #define VKI_F_GETLK64		12	/*  using 'struct flock64' */
309 #define VKI_F_SETLK64		13
310 #define VKI_F_SETLKW64		14
311 
312 #define VKI_F_SETOWN_EX		15
313 #define VKI_F_GETOWN_EX		16
314 
315 #define VKI_F_OFD_GETLK		36
316 #define VKI_F_OFD_SETLK		37
317 #define VKI_F_OFD_SETLKW	38
318 
319 #define VKI_F_OWNER_TID		0
320 #define VKI_F_OWNER_PID		1
321 #define VKI_F_OWNER_PGRP	2
322 
323 struct vki_f_owner_ex {
324 	int	type;
325 	__vki_kernel_pid_t	pid;
326 };
327 
328 /* for F_[GET|SET]FL */
329 #define VKI_FD_CLOEXEC	1	/* actually anything with low bit set goes */
330 
331 #define VKI_F_LINUX_SPECIFIC_BASE	1024
332 
333 //----------------------------------------------------------------------
334 // From linux-2.6.8.1/include/asm-i386/resource.h
335 //----------------------------------------------------------------------
336 
337 #define VKI_RLIMIT_DATA		2	/* max data size */
338 #define VKI_RLIMIT_STACK	3	/* max stack size */
339 #define VKI_RLIMIT_CORE		4	/* max core file size */
340 #define VKI_RLIMIT_NOFILE	7	/* max number of open files */
341 
342 //----------------------------------------------------------------------
343 // From linux-2.6.8.1/include/asm-i386/socket.h
344 //----------------------------------------------------------------------
345 
346 #define VKI_SOL_SOCKET	1
347 
348 #define VKI_SO_TYPE	3
349 
350 #define VKI_SO_ATTACH_FILTER	26
351 
352 //----------------------------------------------------------------------
353 // From linux-2.6.8.1/include/asm-i386/sockios.h
354 //----------------------------------------------------------------------
355 
356 #define VKI_SIOCSPGRP		0x8902
357 #define VKI_SIOCGPGRP		0x8904
358 #define VKI_SIOCATMARK  	0x8905
359 #define VKI_SIOCGSTAMP		0x8906		/* Get stamp (timeval) */
360 #define VKI_SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
361 
362 //----------------------------------------------------------------------
363 // From linux-2.6.8.1/include/asm-i386/stat.h
364 //----------------------------------------------------------------------
365 
366 struct vki_stat {
367 	unsigned long  st_dev;
368 	unsigned long  st_ino;
369 	unsigned short st_mode;
370 	unsigned short st_nlink;
371 	unsigned short st_uid;
372 	unsigned short st_gid;
373 	unsigned long  st_rdev;
374 	unsigned long  st_size;
375 	unsigned long  st_blksize;
376 	unsigned long  st_blocks;
377 	unsigned long  st_atime;
378 	unsigned long  st_atime_nsec;
379 	unsigned long  st_mtime;
380 	unsigned long  st_mtime_nsec;
381 	unsigned long  st_ctime;
382 	unsigned long  st_ctime_nsec;
383 	unsigned long  __unused4;
384 	unsigned long  __unused5;
385 };
386 
387 struct vki_stat64 {
388 	unsigned long long	st_dev;
389 	unsigned char	__pad0[4];
390 
391 #define STAT64_HAS_BROKEN_ST_INO	1
392 	unsigned long	__st_ino;
393 
394 	unsigned int	st_mode;
395 	unsigned int	st_nlink;
396 
397 	unsigned long	st_uid;
398 	unsigned long	st_gid;
399 
400 	unsigned long long	st_rdev;
401 	unsigned char	__pad3[4];
402 
403 	long long	st_size;
404 	unsigned long	st_blksize;
405 
406 	unsigned long	st_blocks;	/* Number 512-byte blocks allocated. */
407 	unsigned long	__pad4;		/* future possible st_blocks high bits */
408 
409 	unsigned long	st_atime;
410 	unsigned long	st_atime_nsec;
411 
412 	unsigned long	st_mtime;
413 	unsigned int	st_mtime_nsec;
414 
415 	unsigned long	st_ctime;
416 	unsigned long	st_ctime_nsec;
417 
418 	unsigned long long	st_ino;
419 };
420 
421 //----------------------------------------------------------------------
422 // From linux-2.6.8.1/include/asm-i386/statfs.h
423 //----------------------------------------------------------------------
424 
425 // [[Nb: asm-i386/statfs.h just #include asm-generic/statfs.h directly]]
426 struct vki_statfs {
427 	__vki_u32 f_type;
428 	__vki_u32 f_bsize;
429 	__vki_u32 f_blocks;
430 	__vki_u32 f_bfree;
431 	__vki_u32 f_bavail;
432 	__vki_u32 f_files;
433 	__vki_u32 f_ffree;
434 	__vki_kernel_fsid_t f_fsid;
435 	__vki_u32 f_namelen;
436 	__vki_u32 f_frsize;
437 	__vki_u32 f_spare[5];
438 };
439 
440 //----------------------------------------------------------------------
441 // From linux-2.6.8.1/include/asm-i386/termios.h
442 //----------------------------------------------------------------------
443 
444 struct vki_winsize {
445 	unsigned short ws_row;
446 	unsigned short ws_col;
447 	unsigned short ws_xpixel;
448 	unsigned short ws_ypixel;
449 };
450 
451 #define VKI_NCC 8
452 struct vki_termio {
453 	unsigned short c_iflag;		/* input mode flags */
454 	unsigned short c_oflag;		/* output mode flags */
455 	unsigned short c_cflag;		/* control mode flags */
456 	unsigned short c_lflag;		/* local mode flags */
457 	unsigned char c_line;		/* line discipline */
458 	unsigned char c_cc[VKI_NCC];	/* control characters */
459 };
460 
461 
462 //----------------------------------------------------------------------
463 // From linux-2.6.8.1/include/asm-i386/termbits.h
464 //----------------------------------------------------------------------
465 
466 typedef unsigned char   vki_cc_t;
467 typedef unsigned int    vki_tcflag_t;
468 
469 #define VKI_NCCS 19
470 struct vki_termios {
471 	vki_tcflag_t c_iflag;		/* input mode flags */
472 	vki_tcflag_t c_oflag;		/* output mode flags */
473 	vki_tcflag_t c_cflag;		/* control mode flags */
474 	vki_tcflag_t c_lflag;		/* local mode flags */
475 	vki_cc_t c_line;		/* line discipline */
476 	vki_cc_t c_cc[VKI_NCCS];	/* control characters */
477 };
478 
479 //----------------------------------------------------------------------
480 // From linux-2.6.8.1/include/asm-i386/ioctl.h
481 //----------------------------------------------------------------------
482 
483 #define _VKI_IOC_NRBITS		8
484 #define _VKI_IOC_TYPEBITS	8
485 #define _VKI_IOC_SIZEBITS	14
486 #define _VKI_IOC_DIRBITS	2
487 
488 #define _VKI_IOC_NRMASK		((1 << _VKI_IOC_NRBITS)-1)
489 #define _VKI_IOC_TYPEMASK	((1 << _VKI_IOC_TYPEBITS)-1)
490 #define _VKI_IOC_SIZEMASK	((1 << _VKI_IOC_SIZEBITS)-1)
491 #define _VKI_IOC_DIRMASK	((1 << _VKI_IOC_DIRBITS)-1)
492 
493 #define _VKI_IOC_NRSHIFT	0
494 #define _VKI_IOC_TYPESHIFT	(_VKI_IOC_NRSHIFT+_VKI_IOC_NRBITS)
495 #define _VKI_IOC_SIZESHIFT	(_VKI_IOC_TYPESHIFT+_VKI_IOC_TYPEBITS)
496 #define _VKI_IOC_DIRSHIFT	(_VKI_IOC_SIZESHIFT+_VKI_IOC_SIZEBITS)
497 
498 #define _VKI_IOC_NONE	0U
499 #define _VKI_IOC_WRITE	1U
500 #define _VKI_IOC_READ	2U
501 
502 #define _VKI_IOC(dir,type,nr,size) \
503 	(((dir)  << _VKI_IOC_DIRSHIFT) | \
504 	 ((type) << _VKI_IOC_TYPESHIFT) | \
505 	 ((nr)   << _VKI_IOC_NRSHIFT) | \
506 	 ((size) << _VKI_IOC_SIZESHIFT))
507 
508 /* used to create numbers */
509 #define _VKI_IO(type,nr)	_VKI_IOC(_VKI_IOC_NONE,(type),(nr),0)
510 #define _VKI_IOR(type,nr,size)	_VKI_IOC(_VKI_IOC_READ,(type),(nr),(_VKI_IOC_TYPECHECK(size)))
511 #define _VKI_IOW(type,nr,size)	_VKI_IOC(_VKI_IOC_WRITE,(type),(nr),(_VKI_IOC_TYPECHECK(size)))
512 #define _VKI_IOWR(type,nr,size)	_VKI_IOC(_VKI_IOC_READ|_VKI_IOC_WRITE,(type),(nr),(_VKI_IOC_TYPECHECK(size)))
513 
514 /* used to decode ioctl numbers.. */
515 #define _VKI_IOC_DIR(nr)	(((nr) >> _VKI_IOC_DIRSHIFT) & _VKI_IOC_DIRMASK)
516 #define _VKI_IOC_TYPE(nr)	(((nr) >> _VKI_IOC_TYPESHIFT) & _VKI_IOC_TYPEMASK)
517 #define _VKI_IOC_NR(nr)		(((nr) >> _VKI_IOC_NRSHIFT) & _VKI_IOC_NRMASK)
518 #define _VKI_IOC_SIZE(nr)	(((nr) >> _VKI_IOC_SIZESHIFT) & _VKI_IOC_SIZEMASK)
519 
520 //----------------------------------------------------------------------
521 // From linux-2.6.8.1/include/asm-i386/ioctls.h
522 //----------------------------------------------------------------------
523 
524 #define VKI_TCGETS	0x5401
525 #define VKI_TCSETS	0x5402 /* Clashes with SNDCTL_TMR_START sound ioctl */
526 #define VKI_TCSETSW	0x5403
527 #define VKI_TCSETSF	0x5404
528 #define VKI_TCGETA	0x5405
529 #define VKI_TCSETA	0x5406
530 #define VKI_TCSETAW	0x5407
531 #define VKI_TCSETAF	0x5408
532 #define VKI_TCSBRK	0x5409
533 #define VKI_TCXONC	0x540A
534 #define VKI_TCFLSH	0x540B
535 #define VKI_TIOCSCTTY	0x540E
536 #define VKI_TIOCGPGRP	0x540F
537 #define VKI_TIOCSPGRP	0x5410
538 #define VKI_TIOCOUTQ	0x5411
539 #define VKI_TIOCGWINSZ	0x5413
540 #define VKI_TIOCSWINSZ	0x5414
541 #define VKI_TIOCMGET	0x5415
542 #define VKI_TIOCMBIS	0x5416
543 #define VKI_TIOCMBIC	0x5417
544 #define VKI_TIOCMSET	0x5418
545 #define VKI_FIONREAD	0x541B
546 #define VKI_TIOCLINUX	0x541C
547 #define VKI_FIONBIO	0x5421
548 #define VKI_TIOCNOTTY	0x5422
549 #define VKI_TCSBRKP	0x5425	/* Needed for POSIX tcsendbreak() */
550 #define VKI_TIOCGPTN	_VKI_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
551 #define VKI_TIOCSPTLCK	_VKI_IOW('T',0x31, int)  /* Lock/unlock Pty */
552 
553 #define VKI_FIONCLEX    0x5450
554 #define VKI_FIOCLEX     0x5451
555 #define VKI_FIOASYNC	0x5452
556 #define VKI_TIOCSERGETLSR   0x5459 /* Get line status register */
557 
558 #define VKI_TIOCGICOUNT	0x545D	/* read serial port inline interrupt counts */
559 
560 //----------------------------------------------------------------------
561 // From linux-2.6.8.1/include/asm-i386/poll.h
562 //----------------------------------------------------------------------
563 
564 /* These are specified by iBCS2 */
565 #define VKI_POLLIN		0x0001
566 
567 struct vki_pollfd {
568 	int fd;
569 	short events;
570 	short revents;
571 };
572 
573 //----------------------------------------------------------------------
574 // From linux-2.6.8.1/include/asm-i386/user.h
575 //----------------------------------------------------------------------
576 
577 struct vki_user_i387_struct {
578 	long	cwd;
579 	long	swd;
580 	long	twd;
581 	long	fip;
582 	long	fcs;
583 	long	foo;
584 	long	fos;
585 	long	st_space[20];	/* 8*10 bytes for each FP-reg = 80 bytes */
586 };
587 
588 struct vki_user_fxsr_struct {
589 	unsigned short	cwd;
590 	unsigned short	swd;
591 	unsigned short	twd;
592 	unsigned short	fop;
593 	long	fip;
594 	long	fcs;
595 	long	foo;
596 	long	fos;
597 	long	mxcsr;
598 	long	reserved;
599 	long	st_space[32];	/* 8*16 bytes for each FP-reg = 128 bytes */
600 	long	xmm_space[32];	/* 8*16 bytes for each XMM-reg = 128 bytes */
601 	long	padding[56];
602 };
603 
604 /*
605  * This is the old layout of "struct pt_regs", and
606  * is still the layout used by user mode (the new
607  * pt_regs doesn't have all registers as the kernel
608  * doesn't use the extra segment registers)
609  */
610 struct vki_user_regs_struct {
611 	long ebx, ecx, edx, esi, edi, ebp, eax;
612 	unsigned short ds, __ds, es, __es;
613 	unsigned short fs, __fs, gs, __gs;
614 	long orig_eax, eip;
615 	unsigned short cs, __cs;
616 	long eflags, esp;
617 	unsigned short ss, __ss;
618 };
619 
620 //----------------------------------------------------------------------
621 // From linux-2.6.8.1/include/asm-i386/elf.h
622 //----------------------------------------------------------------------
623 
624 typedef unsigned long vki_elf_greg_t;
625 
626 #define VKI_ELF_NGREG (sizeof (struct vki_user_regs_struct) / sizeof(vki_elf_greg_t))
627 typedef vki_elf_greg_t vki_elf_gregset_t[VKI_ELF_NGREG];
628 
629 typedef struct vki_user_i387_struct vki_elf_fpregset_t;
630 typedef struct vki_user_fxsr_struct vki_elf_fpxregset_t;
631 
632 #define VKI_AT_SYSINFO		32
633 
634 //----------------------------------------------------------------------
635 // From linux-2.6.8.1/include/asm-i386/ucontext.h
636 //----------------------------------------------------------------------
637 
638 struct vki_ucontext {
639 	unsigned long		uc_flags;
640 	struct vki_ucontext    *uc_link;
641 	vki_stack_t		uc_stack;
642 	struct vki_sigcontext	uc_mcontext;
643 	vki_sigset_t		uc_sigmask;	/* mask last for extensibility */
644 };
645 
646 //----------------------------------------------------------------------
647 // From linux-2.6.8.1/include/asm-i386/segment.h
648 //----------------------------------------------------------------------
649 
650 #define VKI_GDT_ENTRY_TLS_ENTRIES	3
651 #define VKI_GDT_ENTRY_TLS_MIN	6
652 #define VKI_GDT_ENTRY_TLS_MAX 	(VKI_GDT_ENTRY_TLS_MIN + VKI_GDT_ENTRY_TLS_ENTRIES - 1)
653 
654 //----------------------------------------------------------------------
655 // From linux-2.6.8.1/include/asm-i386/ldt.h
656 //----------------------------------------------------------------------
657 
658 /* [[Nb: This is the structure passed to the modify_ldt syscall.  Just so as
659    to confuse and annoy everyone, this is _not_ the same as an
660    VgLdtEntry and has to be translated into such.  The logic for doing
661    so, in vg_ldt.c, is copied from the kernel sources.]] */
662 struct vki_user_desc {
663 	unsigned int  entry_number;
664 	unsigned long base_addr;
665 	unsigned int  limit;
666 	unsigned int  seg_32bit:1;
667 	unsigned int  contents:2;
668 	unsigned int  read_exec_only:1;
669 	unsigned int  limit_in_pages:1;
670 	unsigned int  seg_not_present:1;
671 	unsigned int  useable:1;
672         // [[Nb: this field is not in the kernel sources, but it has always
673         // been in the Valgrind sources so I will keep it there in case it's
674         // important... this is an x86-defined data structure so who
675         // knows;  maybe it's important to set this field to zero at some
676         // point.  --njn]]
677 	unsigned int  reserved:25;
678 };
679 
680 // [[Nb: for our convenience within Valgrind, use a more specific name]]
681 typedef struct vki_user_desc vki_modify_ldt_t;
682 
683 //----------------------------------------------------------------------
684 // From linux-2.6.8.1/include/asm-i386/ipcbuf.h
685 //----------------------------------------------------------------------
686 
687 struct vki_ipc64_perm
688 {
689 	__vki_kernel_key_t	key;
690 	__vki_kernel_uid32_t	uid;
691 	__vki_kernel_gid32_t	gid;
692 	__vki_kernel_uid32_t	cuid;
693 	__vki_kernel_gid32_t	cgid;
694 	__vki_kernel_mode_t	mode;
695 	unsigned short		__pad1;
696 	unsigned short		seq;
697 	unsigned short		__pad2;
698 	unsigned long		__unused1;
699 	unsigned long		__unused2;
700 };
701 
702 //----------------------------------------------------------------------
703 // From linux-2.6.8.1/include/asm-i386/sembuf.h
704 //----------------------------------------------------------------------
705 
706 struct vki_semid64_ds {
707 	struct vki_ipc64_perm sem_perm;		/* permissions .. see ipc.h */
708 	__vki_kernel_time_t	sem_otime;		/* last semop time */
709 	unsigned long	__unused1;
710 	__vki_kernel_time_t	sem_ctime;		/* last change time */
711 	unsigned long	__unused2;
712 	unsigned long	sem_nsems;		/* no. of semaphores in array */
713 	unsigned long	__unused3;
714 	unsigned long	__unused4;
715 };
716 
717 //----------------------------------------------------------------------
718 // From linux-2.6.8.1/include/asm-i386/msgbuf.h
719 //----------------------------------------------------------------------
720 
721 struct vki_msqid64_ds {
722 	struct vki_ipc64_perm msg_perm;
723 	__vki_kernel_time_t msg_stime;	/* last msgsnd time */
724 	unsigned long	__unused1;
725 	__vki_kernel_time_t msg_rtime;	/* last msgrcv time */
726 	unsigned long	__unused2;
727 	__vki_kernel_time_t msg_ctime;	/* last change time */
728 	unsigned long	__unused3;
729 	unsigned long  msg_cbytes;	/* current number of bytes on queue */
730 	unsigned long  msg_qnum;	/* number of messages in queue */
731 	unsigned long  msg_qbytes;	/* max number of bytes on queue */
732 	__vki_kernel_pid_t msg_lspid;	/* pid of last msgsnd */
733 	__vki_kernel_pid_t msg_lrpid;	/* last receive pid */
734 	unsigned long  __unused4;
735 	unsigned long  __unused5;
736 };
737 
738 //----------------------------------------------------------------------
739 // From linux-2.6.8.1/include/asm-i386/ipc.h
740 //----------------------------------------------------------------------
741 
742 struct vki_ipc_kludge {
743 	struct vki_msgbuf __user *msgp;
744 	long msgtyp;
745 };
746 
747 #define VKI_SEMOP		 1
748 #define VKI_SEMGET		 2
749 #define VKI_SEMCTL		 3
750 #define VKI_SEMTIMEDOP	 	 4
751 #define VKI_MSGSND		11
752 #define VKI_MSGRCV		12
753 #define VKI_MSGGET		13
754 #define VKI_MSGCTL		14
755 #define VKI_SHMAT		21
756 #define VKI_SHMDT		22
757 #define VKI_SHMGET		23
758 #define VKI_SHMCTL		24
759 
760 
761 //----------------------------------------------------------------------
762 // From linux-2.6.8.1/include/asm-i386/shmbuf.h
763 //----------------------------------------------------------------------
764 
765 struct vki_shmid64_ds {
766 	struct vki_ipc64_perm	shm_perm;	/* operation perms */
767 	vki_size_t		shm_segsz;	/* size of segment (bytes) */
768 	__vki_kernel_time_t	shm_atime;	/* last attach time */
769 	unsigned long		__unused1;
770 	__vki_kernel_time_t	shm_dtime;	/* last detach time */
771 	unsigned long		__unused2;
772 	__vki_kernel_time_t	shm_ctime;	/* last change time */
773 	unsigned long		__unused3;
774 	__vki_kernel_pid_t	shm_cpid;	/* pid of creator */
775 	__vki_kernel_pid_t	shm_lpid;	/* pid of last operator */
776 	unsigned long		shm_nattch;	/* no. of current attaches */
777 	unsigned long		__unused4;
778 	unsigned long		__unused5;
779 };
780 
781 struct vki_shminfo64 {
782 	unsigned long	shmmax;
783 	unsigned long	shmmin;
784 	unsigned long	shmmni;
785 	unsigned long	shmseg;
786 	unsigned long	shmall;
787 	unsigned long	__unused1;
788 	unsigned long	__unused2;
789 	unsigned long	__unused3;
790 	unsigned long	__unused4;
791 };
792 
793 //----------------------------------------------------------------------
794 // DRM ioctls
795 //----------------------------------------------------------------------
796 
797 // jrs 20050207: where did all this stuff come from?  Is it really
798 // i386 specific, or should it go into the linux-generic category?
799 //struct vki_drm_buf_pub {
800 //	Int		  idx;	       /**< Index into the master buffer list */
801 //	Int		  total;       /**< Buffer size */
802 //	Int		  used;	       /**< Amount of buffer in use (for DMA) */
803 //	void	  __user *address;     /**< Address of buffer */
804 //};
805 //
806 //struct vki_drm_buf_map {
807 //	Int	      count;		/**< Length of the buffer list */
808 //	void	      __user *virtual;	/**< Mmap'd area in user-virtual */
809 //	struct vki_drm_buf_pub __user *list;	/**< Buffer information */
810 //};
811 //
812 ///* We need to pay attention to this, because it mmaps memory */
813 //#define VKI_DRM_IOCTL_MAP_BUFS		_VKI_IOWR('d', 0x19, struct vki_drm_buf_map)
814 
815 //----------------------------------------------------------------------
816 // From linux-2.6.9/include/asm-i386/ptrace.h
817 //----------------------------------------------------------------------
818 
819 #define VKI_PTRACE_GETREGS            12
820 #define VKI_PTRACE_SETREGS            13
821 #define VKI_PTRACE_GETFPREGS          14
822 #define VKI_PTRACE_SETFPREGS          15
823 #define VKI_PTRACE_GETFPXREGS         18
824 #define VKI_PTRACE_SETFPXREGS         19
825 #define VKI_PTRACE_GET_THREAD_AREA    25
826 #define VKI_PTRACE_SET_THREAD_AREA    26
827 
828 //----------------------------------------------------------------------
829 // From linux-2.6.15.4/include/asm-i386/vm86.h
830 //----------------------------------------------------------------------
831 
832 #define VKI_VM86_PLUS_INSTALL_CHECK	0
833 #define VKI_VM86_ENTER			1
834 #define VKI_VM86_ENTER_NO_BYPASS	2
835 #define	VKI_VM86_REQUEST_IRQ		3
836 #define VKI_VM86_FREE_IRQ		4
837 #define VKI_VM86_GET_IRQ_BITS		5
838 #define VKI_VM86_GET_AND_RESET_IRQ	6
839 
840 struct vki_vm86_regs {
841 /*
842  * normal regs, with special meaning for the segment descriptors..
843  */
844 	long ebx;
845 	long ecx;
846 	long edx;
847 	long esi;
848 	long edi;
849 	long ebp;
850 	long eax;
851 	long __null_ds;
852 	long __null_es;
853 	long __null_fs;
854 	long __null_gs;
855 	long orig_eax;
856 	long eip;
857 	unsigned short cs, __csh;
858 	long eflags;
859 	long esp;
860 	unsigned short ss, __ssh;
861 /*
862  * these are specific to v86 mode:
863  */
864 	unsigned short es, __esh;
865 	unsigned short ds, __dsh;
866 	unsigned short fs, __fsh;
867 	unsigned short gs, __gsh;
868 };
869 
870 struct vki_revectored_struct {
871 	unsigned long __map[8];			/* 256 bits */
872 };
873 
874 struct vki_vm86_struct {
875 	struct vki_vm86_regs regs;
876 	unsigned long flags;
877 	unsigned long screen_bitmap;
878 	unsigned long cpu_type;
879 	struct vki_revectored_struct int_revectored;
880 	struct vki_revectored_struct int21_revectored;
881 };
882 
883 struct vki_vm86plus_info_struct {
884 	unsigned long force_return_for_pic:1;
885 	unsigned long vm86dbg_active:1;       /* for debugger */
886 	unsigned long vm86dbg_TFpendig:1;     /* for debugger */
887 	unsigned long unused:28;
888 	unsigned long is_vm86pus:1;	      /* for vm86 internal use */
889 	unsigned char vm86dbg_intxxtab[32];   /* for debugger */
890 };
891 
892 struct vki_vm86plus_struct {
893 	struct vki_vm86_regs regs;
894 	unsigned long flags;
895 	unsigned long screen_bitmap;
896 	unsigned long cpu_type;
897 	struct vki_revectored_struct int_revectored;
898 	struct vki_revectored_struct int21_revectored;
899 	struct vki_vm86plus_info_struct vm86plus;
900 };
901 
902 //----------------------------------------------------------------------
903 // From linux-2.6.8.1/include/asm-generic/errno.h
904 //----------------------------------------------------------------------
905 
906 #define	VKI_ENOSYS       38  /* Function not implemented */
907 #define	VKI_EOVERFLOW    75  /* Value too large for defined data type */
908 
909 //----------------------------------------------------------------------
910 // From linux-3.19.0/include/uapi/asm-generic/ioctls.h
911 //----------------------------------------------------------------------
912 
913 #define VKI_TIOCGSERIAL     0x541E
914 #define VKI_TIOCSSERIAL     0x541F
915 
916 //----------------------------------------------------------------------
917 // And that's it!
918 //----------------------------------------------------------------------
919 
920 #endif // __VKI_X86_LINUX_H
921 
922 /*--------------------------------------------------------------------*/
923 /*--- end                                                          ---*/
924 /*--------------------------------------------------------------------*/
925