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) 2000-2011 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
41typedef unsigned char __vki_u8;
42
43typedef __signed__ short __vki_s16;
44typedef unsigned short __vki_u16;
45
46typedef __signed__ int __vki_s32;
47typedef unsigned int __vki_u32;
48
49typedef __signed__ long long __vki_s64;
50typedef unsigned long long __vki_u64;
51
52typedef unsigned short vki_u16;
53
54typedef 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.  */
83typedef void __vki_signalfn_t(int);
84typedef __vki_signalfn_t __user *__vki_sighandler_t;
85
86typedef void __vki_restorefn_t(void);
87typedef __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
96typedef unsigned long vki_old_sigset_t;		/* at least 32 bits */
97
98typedef 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) */
162struct 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
173struct 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: */
183typedef  struct vki_sigaction_base  vki_sigaction_toK_t;
184typedef  struct vki_sigaction_base  vki_sigaction_fromK_t;
185
186
187typedef 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
197struct _vki_fpreg {
198	unsigned short significand[4];
199	unsigned short exponent;
200};
201
202struct _vki_fpxreg {
203	unsigned short significand[4];
204	unsigned short exponent;
205	unsigned short padding[3];
206};
207
208struct _vki_xmmreg {
209	unsigned long element[4];
210};
211
212struct _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
234struct 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_RDONLY	     00
282#define VKI_O_WRONLY	     01
283#define VKI_O_RDWR	     02
284#define VKI_O_CREAT	   0100	/* not fcntl */
285#define VKI_O_EXCL	   0200	/* not fcntl */
286#define VKI_O_TRUNC	  01000	/* not fcntl */
287#define VKI_O_APPEND	  02000
288#define VKI_O_NONBLOCK	  04000
289#define VKI_O_LARGEFILE	0100000
290
291#define VKI_AT_FDCWD            -100
292
293#define VKI_F_DUPFD		0	/* dup */
294#define VKI_F_GETFD		1	/* get close_on_exec */
295#define VKI_F_SETFD		2	/* set/clear close_on_exec */
296#define VKI_F_GETFL		3	/* get file->f_flags */
297#define VKI_F_SETFL		4	/* set file->f_flags */
298#define VKI_F_GETLK		5
299#define VKI_F_SETLK		6
300#define VKI_F_SETLKW		7
301
302#define VKI_F_SETOWN		8	/*  for sockets. */
303#define VKI_F_GETOWN		9	/*  for sockets. */
304#define VKI_F_SETSIG		10	/*  for sockets. */
305#define VKI_F_GETSIG		11	/*  for sockets. */
306
307#define VKI_F_GETLK64		12	/*  using 'struct flock64' */
308#define VKI_F_SETLK64		13
309#define VKI_F_SETLKW64		14
310
311/* for F_[GET|SET]FL */
312#define VKI_FD_CLOEXEC	1	/* actually anything with low bit set goes */
313
314#define VKI_F_LINUX_SPECIFIC_BASE	1024
315
316//----------------------------------------------------------------------
317// From linux-2.6.8.1/include/asm-i386/resource.h
318//----------------------------------------------------------------------
319
320#define VKI_RLIMIT_DATA		2	/* max data size */
321#define VKI_RLIMIT_STACK	3	/* max stack size */
322#define VKI_RLIMIT_CORE		4	/* max core file size */
323#define VKI_RLIMIT_NOFILE	7	/* max number of open files */
324
325//----------------------------------------------------------------------
326// From linux-2.6.8.1/include/asm-i386/socket.h
327//----------------------------------------------------------------------
328
329#define VKI_SOL_SOCKET	1
330
331#define VKI_SO_TYPE	3
332
333//----------------------------------------------------------------------
334// From linux-2.6.8.1/include/asm-i386/sockios.h
335//----------------------------------------------------------------------
336
337#define VKI_SIOCSPGRP		0x8902
338#define VKI_SIOCGPGRP		0x8904
339#define VKI_SIOCGSTAMP		0x8906		/* Get stamp (timeval) */
340#define VKI_SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
341
342//----------------------------------------------------------------------
343// From linux-2.6.8.1/include/asm-i386/stat.h
344//----------------------------------------------------------------------
345
346struct vki_stat {
347	unsigned long  st_dev;
348	unsigned long  st_ino;
349	unsigned short st_mode;
350	unsigned short st_nlink;
351	unsigned short st_uid;
352	unsigned short st_gid;
353	unsigned long  st_rdev;
354	unsigned long  st_size;
355	unsigned long  st_blksize;
356	unsigned long  st_blocks;
357	unsigned long  st_atime;
358	unsigned long  st_atime_nsec;
359	unsigned long  st_mtime;
360	unsigned long  st_mtime_nsec;
361	unsigned long  st_ctime;
362	unsigned long  st_ctime_nsec;
363	unsigned long  __unused4;
364	unsigned long  __unused5;
365};
366
367struct vki_stat64 {
368	unsigned long long	st_dev;
369	unsigned char	__pad0[4];
370
371#define STAT64_HAS_BROKEN_ST_INO	1
372	unsigned long	__st_ino;
373
374	unsigned int	st_mode;
375	unsigned int	st_nlink;
376
377	unsigned long	st_uid;
378	unsigned long	st_gid;
379
380	unsigned long long	st_rdev;
381	unsigned char	__pad3[4];
382
383	long long	st_size;
384	unsigned long	st_blksize;
385
386	unsigned long	st_blocks;	/* Number 512-byte blocks allocated. */
387	unsigned long	__pad4;		/* future possible st_blocks high bits */
388
389	unsigned long	st_atime;
390	unsigned long	st_atime_nsec;
391
392	unsigned long	st_mtime;
393	unsigned int	st_mtime_nsec;
394
395	unsigned long	st_ctime;
396	unsigned long	st_ctime_nsec;
397
398	unsigned long long	st_ino;
399};
400
401//----------------------------------------------------------------------
402// From linux-2.6.8.1/include/asm-i386/statfs.h
403//----------------------------------------------------------------------
404
405// [[Nb: asm-i386/statfs.h just #include asm-generic/statfs.h directly]]
406struct vki_statfs {
407	__vki_u32 f_type;
408	__vki_u32 f_bsize;
409	__vki_u32 f_blocks;
410	__vki_u32 f_bfree;
411	__vki_u32 f_bavail;
412	__vki_u32 f_files;
413	__vki_u32 f_ffree;
414	__vki_kernel_fsid_t f_fsid;
415	__vki_u32 f_namelen;
416	__vki_u32 f_frsize;
417	__vki_u32 f_spare[5];
418};
419
420//----------------------------------------------------------------------
421// From linux-2.6.8.1/include/asm-i386/termios.h
422//----------------------------------------------------------------------
423
424struct vki_winsize {
425	unsigned short ws_row;
426	unsigned short ws_col;
427	unsigned short ws_xpixel;
428	unsigned short ws_ypixel;
429};
430
431#define VKI_NCC 8
432struct vki_termio {
433	unsigned short c_iflag;		/* input mode flags */
434	unsigned short c_oflag;		/* output mode flags */
435	unsigned short c_cflag;		/* control mode flags */
436	unsigned short c_lflag;		/* local mode flags */
437	unsigned char c_line;		/* line discipline */
438	unsigned char c_cc[VKI_NCC];	/* control characters */
439};
440
441
442//----------------------------------------------------------------------
443// From linux-2.6.8.1/include/asm-i386/termbits.h
444//----------------------------------------------------------------------
445
446typedef unsigned char   vki_cc_t;
447typedef unsigned int    vki_tcflag_t;
448
449#define VKI_NCCS 19
450struct vki_termios {
451	vki_tcflag_t c_iflag;		/* input mode flags */
452	vki_tcflag_t c_oflag;		/* output mode flags */
453	vki_tcflag_t c_cflag;		/* control mode flags */
454	vki_tcflag_t c_lflag;		/* local mode flags */
455	vki_cc_t c_line;		/* line discipline */
456	vki_cc_t c_cc[VKI_NCCS];	/* control characters */
457};
458
459//----------------------------------------------------------------------
460// From linux-2.6.8.1/include/asm-i386/ioctl.h
461//----------------------------------------------------------------------
462
463#define _VKI_IOC_NRBITS		8
464#define _VKI_IOC_TYPEBITS	8
465#define _VKI_IOC_SIZEBITS	14
466#define _VKI_IOC_DIRBITS	2
467
468#define _VKI_IOC_NRMASK		((1 << _VKI_IOC_NRBITS)-1)
469#define _VKI_IOC_TYPEMASK	((1 << _VKI_IOC_TYPEBITS)-1)
470#define _VKI_IOC_SIZEMASK	((1 << _VKI_IOC_SIZEBITS)-1)
471#define _VKI_IOC_DIRMASK	((1 << _VKI_IOC_DIRBITS)-1)
472
473#define _VKI_IOC_NRSHIFT	0
474#define _VKI_IOC_TYPESHIFT	(_VKI_IOC_NRSHIFT+_VKI_IOC_NRBITS)
475#define _VKI_IOC_SIZESHIFT	(_VKI_IOC_TYPESHIFT+_VKI_IOC_TYPEBITS)
476#define _VKI_IOC_DIRSHIFT	(_VKI_IOC_SIZESHIFT+_VKI_IOC_SIZEBITS)
477
478#define _VKI_IOC_NONE	0U
479#define _VKI_IOC_WRITE	1U
480#define _VKI_IOC_READ	2U
481
482#define _VKI_IOC(dir,type,nr,size) \
483	(((dir)  << _VKI_IOC_DIRSHIFT) | \
484	 ((type) << _VKI_IOC_TYPESHIFT) | \
485	 ((nr)   << _VKI_IOC_NRSHIFT) | \
486	 ((size) << _VKI_IOC_SIZESHIFT))
487
488/* used to create numbers */
489#define _VKI_IO(type,nr)	_VKI_IOC(_VKI_IOC_NONE,(type),(nr),0)
490#define _VKI_IOR(type,nr,size)	_VKI_IOC(_VKI_IOC_READ,(type),(nr),(_VKI_IOC_TYPECHECK(size)))
491#define _VKI_IOW(type,nr,size)	_VKI_IOC(_VKI_IOC_WRITE,(type),(nr),(_VKI_IOC_TYPECHECK(size)))
492#define _VKI_IOWR(type,nr,size)	_VKI_IOC(_VKI_IOC_READ|_VKI_IOC_WRITE,(type),(nr),(_VKI_IOC_TYPECHECK(size)))
493
494/* used to decode ioctl numbers.. */
495#define _VKI_IOC_DIR(nr)	(((nr) >> _VKI_IOC_DIRSHIFT) & _VKI_IOC_DIRMASK)
496#define _VKI_IOC_TYPE(nr)	(((nr) >> _VKI_IOC_TYPESHIFT) & _VKI_IOC_TYPEMASK)
497#define _VKI_IOC_NR(nr)		(((nr) >> _VKI_IOC_NRSHIFT) & _VKI_IOC_NRMASK)
498#define _VKI_IOC_SIZE(nr)	(((nr) >> _VKI_IOC_SIZESHIFT) & _VKI_IOC_SIZEMASK)
499
500//----------------------------------------------------------------------
501// From linux-2.6.8.1/include/asm-i386/ioctls.h
502//----------------------------------------------------------------------
503
504#define VKI_TCGETS	0x5401
505#define VKI_TCSETS	0x5402 /* Clashes with SNDCTL_TMR_START sound ioctl */
506#define VKI_TCSETSW	0x5403
507#define VKI_TCSETSF	0x5404
508#define VKI_TCGETA	0x5405
509#define VKI_TCSETA	0x5406
510#define VKI_TCSETAW	0x5407
511#define VKI_TCSETAF	0x5408
512#define VKI_TCSBRK	0x5409
513#define VKI_TCXONC	0x540A
514#define VKI_TCFLSH	0x540B
515#define VKI_TIOCSCTTY	0x540E
516#define VKI_TIOCGPGRP	0x540F
517#define VKI_TIOCSPGRP	0x5410
518#define VKI_TIOCOUTQ	0x5411
519#define VKI_TIOCGWINSZ	0x5413
520#define VKI_TIOCSWINSZ	0x5414
521#define VKI_TIOCMGET	0x5415
522#define VKI_TIOCMBIS	0x5416
523#define VKI_TIOCMBIC	0x5417
524#define VKI_TIOCMSET	0x5418
525#define VKI_FIONREAD	0x541B
526#define VKI_TIOCLINUX	0x541C
527#define VKI_FIONBIO	0x5421
528#define VKI_TCSBRKP	0x5425	/* Needed for POSIX tcsendbreak() */
529#define VKI_TIOCGPTN	_VKI_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
530#define VKI_TIOCSPTLCK	_VKI_IOW('T',0x31, int)  /* Lock/unlock Pty */
531
532#define VKI_FIOASYNC	0x5452
533#define VKI_TIOCSERGETLSR   0x5459 /* Get line status register */
534
535#define VKI_TIOCGICOUNT	0x545D	/* read serial port inline interrupt counts */
536
537//----------------------------------------------------------------------
538// From linux-2.6.8.1/include/asm-i386/poll.h
539//----------------------------------------------------------------------
540
541/* These are specified by iBCS2 */
542#define VKI_POLLIN		0x0001
543
544struct vki_pollfd {
545	int fd;
546	short events;
547	short revents;
548};
549
550//----------------------------------------------------------------------
551// From linux-2.6.8.1/include/asm-i386/user.h
552//----------------------------------------------------------------------
553
554struct vki_user_i387_struct {
555	long	cwd;
556	long	swd;
557	long	twd;
558	long	fip;
559	long	fcs;
560	long	foo;
561	long	fos;
562	long	st_space[20];	/* 8*10 bytes for each FP-reg = 80 bytes */
563};
564
565struct vki_user_fxsr_struct {
566	unsigned short	cwd;
567	unsigned short	swd;
568	unsigned short	twd;
569	unsigned short	fop;
570	long	fip;
571	long	fcs;
572	long	foo;
573	long	fos;
574	long	mxcsr;
575	long	reserved;
576	long	st_space[32];	/* 8*16 bytes for each FP-reg = 128 bytes */
577	long	xmm_space[32];	/* 8*16 bytes for each XMM-reg = 128 bytes */
578	long	padding[56];
579};
580
581/*
582 * This is the old layout of "struct pt_regs", and
583 * is still the layout used by user mode (the new
584 * pt_regs doesn't have all registers as the kernel
585 * doesn't use the extra segment registers)
586 */
587struct vki_user_regs_struct {
588	long ebx, ecx, edx, esi, edi, ebp, eax;
589	unsigned short ds, __ds, es, __es;
590	unsigned short fs, __fs, gs, __gs;
591	long orig_eax, eip;
592	unsigned short cs, __cs;
593	long eflags, esp;
594	unsigned short ss, __ss;
595};
596
597//----------------------------------------------------------------------
598// From linux-2.6.8.1/include/asm-i386/elf.h
599//----------------------------------------------------------------------
600
601typedef unsigned long vki_elf_greg_t;
602
603#define VKI_ELF_NGREG (sizeof (struct vki_user_regs_struct) / sizeof(vki_elf_greg_t))
604typedef vki_elf_greg_t vki_elf_gregset_t[VKI_ELF_NGREG];
605
606typedef struct vki_user_i387_struct vki_elf_fpregset_t;
607typedef struct vki_user_fxsr_struct vki_elf_fpxregset_t;
608
609#define VKI_AT_SYSINFO		32
610
611//----------------------------------------------------------------------
612// From linux-2.6.8.1/include/asm-i386/ucontext.h
613//----------------------------------------------------------------------
614
615struct vki_ucontext {
616	unsigned long		uc_flags;
617	struct vki_ucontext    *uc_link;
618	vki_stack_t		uc_stack;
619	struct vki_sigcontext	uc_mcontext;
620	vki_sigset_t		uc_sigmask;	/* mask last for extensibility */
621};
622
623//----------------------------------------------------------------------
624// From linux-2.6.8.1/include/asm-i386/segment.h
625//----------------------------------------------------------------------
626
627#define VKI_GDT_ENTRY_TLS_ENTRIES	3
628#define VKI_GDT_ENTRY_TLS_MIN	6
629#define VKI_GDT_ENTRY_TLS_MAX 	(VKI_GDT_ENTRY_TLS_MIN + VKI_GDT_ENTRY_TLS_ENTRIES - 1)
630
631//----------------------------------------------------------------------
632// From linux-2.6.8.1/include/asm-i386/ldt.h
633//----------------------------------------------------------------------
634
635/* [[Nb: This is the structure passed to the modify_ldt syscall.  Just so as
636   to confuse and annoy everyone, this is _not_ the same as an
637   VgLdtEntry and has to be translated into such.  The logic for doing
638   so, in vg_ldt.c, is copied from the kernel sources.]] */
639struct vki_user_desc {
640	unsigned int  entry_number;
641	unsigned long base_addr;
642	unsigned int  limit;
643	unsigned int  seg_32bit:1;
644	unsigned int  contents:2;
645	unsigned int  read_exec_only:1;
646	unsigned int  limit_in_pages:1;
647	unsigned int  seg_not_present:1;
648	unsigned int  useable:1;
649        // [[Nb: this field is not in the kernel sources, but it has always
650        // been in the Valgrind sources so I will keep it there in case it's
651        // important... this is an x86-defined data structure so who
652        // knows;  maybe it's important to set this field to zero at some
653        // point.  --njn]]
654	unsigned int  reserved:25;
655};
656
657// [[Nb: for our convenience within Valgrind, use a more specific name]]
658typedef struct vki_user_desc vki_modify_ldt_t;
659
660//----------------------------------------------------------------------
661// From linux-2.6.8.1/include/asm-i386/ipcbuf.h
662//----------------------------------------------------------------------
663
664struct vki_ipc64_perm
665{
666	__vki_kernel_key_t	key;
667	__vki_kernel_uid32_t	uid;
668	__vki_kernel_gid32_t	gid;
669	__vki_kernel_uid32_t	cuid;
670	__vki_kernel_gid32_t	cgid;
671	__vki_kernel_mode_t	mode;
672	unsigned short		__pad1;
673	unsigned short		seq;
674	unsigned short		__pad2;
675	unsigned long		__unused1;
676	unsigned long		__unused2;
677};
678
679//----------------------------------------------------------------------
680// From linux-2.6.8.1/include/asm-i386/sembuf.h
681//----------------------------------------------------------------------
682
683struct vki_semid64_ds {
684	struct vki_ipc64_perm sem_perm;		/* permissions .. see ipc.h */
685	__vki_kernel_time_t	sem_otime;		/* last semop time */
686	unsigned long	__unused1;
687	__vki_kernel_time_t	sem_ctime;		/* last change time */
688	unsigned long	__unused2;
689	unsigned long	sem_nsems;		/* no. of semaphores in array */
690	unsigned long	__unused3;
691	unsigned long	__unused4;
692};
693
694//----------------------------------------------------------------------
695// From linux-2.6.8.1/include/asm-i386/msgbuf.h
696//----------------------------------------------------------------------
697
698struct vki_msqid64_ds {
699	struct vki_ipc64_perm msg_perm;
700	__vki_kernel_time_t msg_stime;	/* last msgsnd time */
701	unsigned long	__unused1;
702	__vki_kernel_time_t msg_rtime;	/* last msgrcv time */
703	unsigned long	__unused2;
704	__vki_kernel_time_t msg_ctime;	/* last change time */
705	unsigned long	__unused3;
706	unsigned long  msg_cbytes;	/* current number of bytes on queue */
707	unsigned long  msg_qnum;	/* number of messages in queue */
708	unsigned long  msg_qbytes;	/* max number of bytes on queue */
709	__vki_kernel_pid_t msg_lspid;	/* pid of last msgsnd */
710	__vki_kernel_pid_t msg_lrpid;	/* last receive pid */
711	unsigned long  __unused4;
712	unsigned long  __unused5;
713};
714
715//----------------------------------------------------------------------
716// From linux-2.6.8.1/include/asm-i386/ipc.h
717//----------------------------------------------------------------------
718
719struct vki_ipc_kludge {
720	struct vki_msgbuf __user *msgp;
721	long msgtyp;
722};
723
724#define VKI_SEMOP		 1
725#define VKI_SEMGET		 2
726#define VKI_SEMCTL		 3
727#define VKI_SEMTIMEDOP	 	 4
728#define VKI_MSGSND		11
729#define VKI_MSGRCV		12
730#define VKI_MSGGET		13
731#define VKI_MSGCTL		14
732#define VKI_SHMAT		21
733#define VKI_SHMDT		22
734#define VKI_SHMGET		23
735#define VKI_SHMCTL		24
736
737
738//----------------------------------------------------------------------
739// From linux-2.6.8.1/include/asm-i386/shmbuf.h
740//----------------------------------------------------------------------
741
742struct vki_shmid64_ds {
743	struct vki_ipc64_perm	shm_perm;	/* operation perms */
744	vki_size_t		shm_segsz;	/* size of segment (bytes) */
745	__vki_kernel_time_t	shm_atime;	/* last attach time */
746	unsigned long		__unused1;
747	__vki_kernel_time_t	shm_dtime;	/* last detach time */
748	unsigned long		__unused2;
749	__vki_kernel_time_t	shm_ctime;	/* last change time */
750	unsigned long		__unused3;
751	__vki_kernel_pid_t	shm_cpid;	/* pid of creator */
752	__vki_kernel_pid_t	shm_lpid;	/* pid of last operator */
753	unsigned long		shm_nattch;	/* no. of current attaches */
754	unsigned long		__unused4;
755	unsigned long		__unused5;
756};
757
758struct vki_shminfo64 {
759	unsigned long	shmmax;
760	unsigned long	shmmin;
761	unsigned long	shmmni;
762	unsigned long	shmseg;
763	unsigned long	shmall;
764	unsigned long	__unused1;
765	unsigned long	__unused2;
766	unsigned long	__unused3;
767	unsigned long	__unused4;
768};
769
770//----------------------------------------------------------------------
771// DRM ioctls
772//----------------------------------------------------------------------
773
774// jrs 20050207: where did all this stuff come from?  Is it really
775// i386 specific, or should it go into the linux-generic category?
776//struct vki_drm_buf_pub {
777//	Int		  idx;	       /**< Index into the master buffer list */
778//	Int		  total;       /**< Buffer size */
779//	Int		  used;	       /**< Amount of buffer in use (for DMA) */
780//	void	  __user *address;     /**< Address of buffer */
781//};
782//
783//struct vki_drm_buf_map {
784//	Int	      count;		/**< Length of the buffer list */
785//	void	      __user *virtual;	/**< Mmap'd area in user-virtual */
786//	struct vki_drm_buf_pub __user *list;	/**< Buffer information */
787//};
788//
789///* We need to pay attention to this, because it mmaps memory */
790//#define VKI_DRM_IOCTL_MAP_BUFS		_VKI_IOWR('d', 0x19, struct vki_drm_buf_map)
791
792//----------------------------------------------------------------------
793// From linux-2.6.9/include/asm-i386/ptrace.h
794//----------------------------------------------------------------------
795
796#define VKI_PTRACE_GETREGS            12
797#define VKI_PTRACE_SETREGS            13
798#define VKI_PTRACE_GETFPREGS          14
799#define VKI_PTRACE_SETFPREGS          15
800#define VKI_PTRACE_GETFPXREGS         18
801#define VKI_PTRACE_SETFPXREGS         19
802
803//----------------------------------------------------------------------
804// From linux-2.6.15.4/include/asm-i386/vm86.h
805//----------------------------------------------------------------------
806
807#define VKI_VM86_PLUS_INSTALL_CHECK	0
808#define VKI_VM86_ENTER			1
809#define VKI_VM86_ENTER_NO_BYPASS	2
810#define	VKI_VM86_REQUEST_IRQ		3
811#define VKI_VM86_FREE_IRQ		4
812#define VKI_VM86_GET_IRQ_BITS		5
813#define VKI_VM86_GET_AND_RESET_IRQ	6
814
815struct vki_vm86_regs {
816/*
817 * normal regs, with special meaning for the segment descriptors..
818 */
819	long ebx;
820	long ecx;
821	long edx;
822	long esi;
823	long edi;
824	long ebp;
825	long eax;
826	long __null_ds;
827	long __null_es;
828	long __null_fs;
829	long __null_gs;
830	long orig_eax;
831	long eip;
832	unsigned short cs, __csh;
833	long eflags;
834	long esp;
835	unsigned short ss, __ssh;
836/*
837 * these are specific to v86 mode:
838 */
839	unsigned short es, __esh;
840	unsigned short ds, __dsh;
841	unsigned short fs, __fsh;
842	unsigned short gs, __gsh;
843};
844
845struct vki_revectored_struct {
846	unsigned long __map[8];			/* 256 bits */
847};
848
849struct vki_vm86_struct {
850	struct vki_vm86_regs regs;
851	unsigned long flags;
852	unsigned long screen_bitmap;
853	unsigned long cpu_type;
854	struct vki_revectored_struct int_revectored;
855	struct vki_revectored_struct int21_revectored;
856};
857
858struct vki_vm86plus_info_struct {
859	unsigned long force_return_for_pic:1;
860	unsigned long vm86dbg_active:1;       /* for debugger */
861	unsigned long vm86dbg_TFpendig:1;     /* for debugger */
862	unsigned long unused:28;
863	unsigned long is_vm86pus:1;	      /* for vm86 internal use */
864	unsigned char vm86dbg_intxxtab[32];   /* for debugger */
865};
866
867struct vki_vm86plus_struct {
868	struct vki_vm86_regs regs;
869	unsigned long flags;
870	unsigned long screen_bitmap;
871	unsigned long cpu_type;
872	struct vki_revectored_struct int_revectored;
873	struct vki_revectored_struct int21_revectored;
874	struct vki_vm86plus_info_struct vm86plus;
875};
876
877//----------------------------------------------------------------------
878// And that's it!
879//----------------------------------------------------------------------
880
881#endif // __VKI_X86_LINUX_H
882
883/*--------------------------------------------------------------------*/
884/*--- end                                                          ---*/
885/*--------------------------------------------------------------------*/
886