1 /*-
2 * Copyright (c) 2004 Tim J. Robbins
3 * Copyright (c) 2001 Doug Rabson
4 * Copyright (c) 1994-1996 Søren Schmidt
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer
12 * in this position and unchanged.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 * $FreeBSD: releng/10.3/sys/amd64/linux32/linux.h 294368 2016-01-20 01:09:53Z jhb $
31 */
32
33 #ifndef _AMD64_LINUX_H_
34 #define _AMD64_LINUX_H_
35
36 #include <compat/linux/linux.h>
37 #include <amd64/linux32/linux32_syscall.h>
38
39 /*
40 * debugging support
41 */
42 extern u_char linux_debug_map[];
43 #define ldebug(name) isclr(linux_debug_map, LINUX32_SYS_linux_ ## name)
44 #define ARGS(nm, fmt) "linux(%ld/%ld): "#nm"("fmt")\n", \
45 (long)td->td_proc->p_pid, (long)td->td_tid
46 #define LMSG(fmt) "linux(%ld/%ld): "fmt"\n", \
47 (long)td->td_proc->p_pid, (long)td->td_tid
48 #define LINUX_DTRACE linuxulator32
49
50 #define LINUX32_MAXUSER ((1ul << 32) - PAGE_SIZE)
51 #define LINUX32_SHAREDPAGE (LINUX32_MAXUSER - PAGE_SIZE)
52 #define LINUX32_USRSTACK LINUX32_SHAREDPAGE
53
54 /* XXX 16 = sizeof(linux32_ps_strings) */
55 #define LINUX32_PS_STRINGS (LINUX32_USRSTACK - 16)
56 #define LINUX32_MAXDSIZ (512 * 1024 * 1024) /* 512MB */
57 #define LINUX32_MAXSSIZ (64 * 1024 * 1024) /* 64MB */
58 #define LINUX32_MAXVMEM 0 /* Unlimited */
59
60 #define PTRIN(v) (void *)(uintptr_t)(v)
61 #define PTROUT(v) (l_uintptr_t)(uintptr_t)(v)
62
63 #define CP(src,dst,fld) do { (dst).fld = (src).fld; } while (0)
64 #define CP2(src,dst,sfld,dfld) do { (dst).dfld = (src).sfld; } while (0)
65 #define PTRIN_CP(src,dst,fld) \
66 do { (dst).fld = PTRIN((src).fld); } while (0)
67
68 /*
69 * Provide a separate set of types for the Linux types.
70 */
71 typedef int l_int;
72 typedef int32_t l_long;
73 typedef int64_t l_longlong;
74 typedef short l_short;
75 typedef unsigned int l_uint;
76 typedef uint32_t l_ulong;
77 typedef uint64_t l_ulonglong;
78 typedef unsigned short l_ushort;
79
80 typedef l_ulong l_uintptr_t;
81 typedef l_long l_clock_t;
82 typedef l_int l_daddr_t;
83 typedef l_ushort l_dev_t;
84 typedef l_uint l_gid_t;
85 typedef l_ushort l_gid16_t;
86 typedef l_ulong l_ino_t;
87 typedef l_int l_key_t;
88 typedef l_longlong l_loff_t;
89 typedef l_ushort l_mode_t;
90 typedef l_long l_off_t;
91 typedef l_int l_pid_t;
92 typedef l_uint l_size_t;
93 typedef l_long l_suseconds_t;
94 typedef l_long l_time_t;
95 typedef l_uint l_uid_t;
96 typedef l_ushort l_uid16_t;
97 typedef l_int l_timer_t;
98 typedef l_int l_mqd_t;
99 typedef l_ulong l_fd_mask;
100
101 typedef struct {
102 l_int val[2];
103 } __packed l_fsid_t;
104
105 typedef struct {
106 l_time_t tv_sec;
107 l_suseconds_t tv_usec;
108 } l_timeval;
109
110 #define l_fd_set fd_set
111
112 /*
113 * Miscellaneous
114 */
115 #define LINUX_AT_COUNT 20 /* Count of used aux entry types.
116 * Keep this synchronized with
117 * elf_linux_fixup() code.
118 */
119 struct l___sysctl_args
120 {
121 l_uintptr_t name;
122 l_int nlen;
123 l_uintptr_t oldval;
124 l_uintptr_t oldlenp;
125 l_uintptr_t newval;
126 l_size_t newlen;
127 l_ulong __spare[4];
128 } __packed;
129
130 /* Resource limits */
131 #define LINUX_RLIMIT_CPU 0
132 #define LINUX_RLIMIT_FSIZE 1
133 #define LINUX_RLIMIT_DATA 2
134 #define LINUX_RLIMIT_STACK 3
135 #define LINUX_RLIMIT_CORE 4
136 #define LINUX_RLIMIT_RSS 5
137 #define LINUX_RLIMIT_NPROC 6
138 #define LINUX_RLIMIT_NOFILE 7
139 #define LINUX_RLIMIT_MEMLOCK 8
140 #define LINUX_RLIMIT_AS 9 /* Address space limit */
141
142 #define LINUX_RLIM_NLIMITS 10
143
144 struct l_rlimit {
145 l_ulong rlim_cur;
146 l_ulong rlim_max;
147 } __packed;
148
149 struct l_rusage {
150 l_timeval ru_utime;
151 l_timeval ru_stime;
152 l_long ru_maxrss;
153 l_long ru_ixrss;
154 l_long ru_idrss;
155 l_long ru_isrss;
156 l_long ru_minflt;
157 l_long ru_majflt;
158 l_long ru_nswap;
159 l_long ru_inblock;
160 l_long ru_oublock;
161 l_long ru_msgsnd;
162 l_long ru_msgrcv;
163 l_long ru_nsignals;
164 l_long ru_nvcsw;
165 l_long ru_nivcsw;
166 } __packed;
167
168 /* mmap options */
169 #define LINUX_MAP_SHARED 0x0001
170 #define LINUX_MAP_PRIVATE 0x0002
171 #define LINUX_MAP_FIXED 0x0010
172 #define LINUX_MAP_ANON 0x0020
173 #define LINUX_MAP_GROWSDOWN 0x0100
174
175 struct l_mmap_argv {
176 l_uintptr_t addr;
177 l_size_t len;
178 l_int prot;
179 l_int flags;
180 l_int fd;
181 l_ulong pgoff;
182 };
183
184 /*
185 * stat family of syscalls
186 */
187 struct l_timespec {
188 l_time_t tv_sec;
189 l_long tv_nsec;
190 } __packed;
191
192 struct l_newstat {
193 l_ushort st_dev;
194 l_ushort __pad1;
195 l_ulong st_ino;
196 l_ushort st_mode;
197 l_ushort st_nlink;
198 l_ushort st_uid;
199 l_ushort st_gid;
200 l_ushort st_rdev;
201 l_ushort __pad2;
202 l_ulong st_size;
203 l_ulong st_blksize;
204 l_ulong st_blocks;
205 struct l_timespec st_atim;
206 struct l_timespec st_mtim;
207 struct l_timespec st_ctim;
208 l_ulong __unused4;
209 l_ulong __unused5;
210 } __packed;
211
212 struct l_stat {
213 l_ushort st_dev;
214 l_ulong st_ino;
215 l_ushort st_mode;
216 l_ushort st_nlink;
217 l_ushort st_uid;
218 l_ushort st_gid;
219 l_ushort st_rdev;
220 l_long st_size;
221 struct l_timespec st_atim;
222 struct l_timespec st_mtim;
223 struct l_timespec st_ctim;
224 l_long st_blksize;
225 l_long st_blocks;
226 l_ulong st_flags;
227 l_ulong st_gen;
228 };
229
230 struct l_stat64 {
231 l_ushort st_dev;
232 u_char __pad0[10];
233 l_ulong __st_ino;
234 l_uint st_mode;
235 l_uint st_nlink;
236 l_ulong st_uid;
237 l_ulong st_gid;
238 l_ushort st_rdev;
239 u_char __pad3[10];
240 l_longlong st_size;
241 l_ulong st_blksize;
242 l_ulong st_blocks;
243 l_ulong __pad4;
244 struct l_timespec st_atim;
245 struct l_timespec st_mtim;
246 struct l_timespec st_ctim;
247 l_ulonglong st_ino;
248 } __packed;
249
250 struct l_statfs64 {
251 l_int f_type;
252 l_int f_bsize;
253 uint64_t f_blocks;
254 uint64_t f_bfree;
255 uint64_t f_bavail;
256 uint64_t f_files;
257 uint64_t f_ffree;
258 l_fsid_t f_fsid;
259 l_int f_namelen;
260 l_int f_spare[6];
261 } __packed;
262
263 /* sigaction flags */
264 #define LINUX_SA_NOCLDSTOP 0x00000001
265 #define LINUX_SA_NOCLDWAIT 0x00000002
266 #define LINUX_SA_SIGINFO 0x00000004
267 #define LINUX_SA_RESTORER 0x04000000
268 #define LINUX_SA_ONSTACK 0x08000000
269 #define LINUX_SA_RESTART 0x10000000
270 #define LINUX_SA_INTERRUPT 0x20000000
271 #define LINUX_SA_NOMASK 0x40000000
272 #define LINUX_SA_ONESHOT 0x80000000
273
274 /* sigprocmask actions */
275 #define LINUX_SIG_BLOCK 0
276 #define LINUX_SIG_UNBLOCK 1
277 #define LINUX_SIG_SETMASK 2
278
279 /* sigaltstack */
280 #define LINUX_MINSIGSTKSZ 2048
281
282 typedef l_uintptr_t l_handler_t;
283 typedef l_ulong l_osigset_t;
284
285 typedef struct {
286 l_handler_t lsa_handler;
287 l_osigset_t lsa_mask;
288 l_ulong lsa_flags;
289 l_uintptr_t lsa_restorer;
290 } __packed l_osigaction_t;
291
292 typedef struct {
293 l_handler_t lsa_handler;
294 l_ulong lsa_flags;
295 l_uintptr_t lsa_restorer;
296 l_sigset_t lsa_mask;
297 } __packed l_sigaction_t;
298
299 typedef struct {
300 l_uintptr_t ss_sp;
301 l_int ss_flags;
302 l_size_t ss_size;
303 } __packed l_stack_t;
304
305 /* The Linux sigcontext, pretty much a standard 386 trapframe. */
306 struct l_sigcontext {
307 l_uint sc_gs;
308 l_uint sc_fs;
309 l_uint sc_es;
310 l_uint sc_ds;
311 l_uint sc_edi;
312 l_uint sc_esi;
313 l_uint sc_ebp;
314 l_uint sc_esp;
315 l_uint sc_ebx;
316 l_uint sc_edx;
317 l_uint sc_ecx;
318 l_uint sc_eax;
319 l_uint sc_trapno;
320 l_uint sc_err;
321 l_uint sc_eip;
322 l_uint sc_cs;
323 l_uint sc_eflags;
324 l_uint sc_esp_at_signal;
325 l_uint sc_ss;
326 l_uint sc_387;
327 l_uint sc_mask;
328 l_uint sc_cr2;
329 } __packed;
330
331 struct l_ucontext {
332 l_ulong uc_flags;
333 l_uintptr_t uc_link;
334 l_stack_t uc_stack;
335 struct l_sigcontext uc_mcontext;
336 l_sigset_t uc_sigmask;
337 } __packed;
338
339 #define LINUX_SI_MAX_SIZE 128
340 #define LINUX_SI_PAD_SIZE ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3)
341
342 typedef union l_sigval {
343 l_int sival_int;
344 l_uintptr_t sival_ptr;
345 } l_sigval_t;
346
347 typedef struct l_siginfo {
348 l_int lsi_signo;
349 l_int lsi_errno;
350 l_int lsi_code;
351 union {
352 l_int _pad[LINUX_SI_PAD_SIZE];
353
354 struct {
355 l_pid_t _pid;
356 l_uid_t _uid;
357 } __packed _kill;
358
359 struct {
360 l_timer_t _tid;
361 l_int _overrun;
362 char _pad[sizeof(l_uid_t) - sizeof(l_int)];
363 l_sigval_t _sigval;
364 l_int _sys_private;
365 } __packed _timer;
366
367 struct {
368 l_pid_t _pid; /* sender's pid */
369 l_uid_t _uid; /* sender's uid */
370 l_sigval_t _sigval;
371 } __packed _rt;
372
373 struct {
374 l_pid_t _pid; /* which child */
375 l_uid_t _uid; /* sender's uid */
376 l_int _status; /* exit code */
377 l_clock_t _utime;
378 l_clock_t _stime;
379 } __packed _sigchld;
380
381 struct {
382 l_uintptr_t _addr; /* Faulting insn/memory ref. */
383 } __packed _sigfault;
384
385 struct {
386 l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */
387 l_int _fd;
388 } __packed _sigpoll;
389 } _sifields;
390 } __packed l_siginfo_t;
391
392 #define lsi_pid _sifields._kill._pid
393 #define lsi_uid _sifields._kill._uid
394 #define lsi_tid _sifields._timer._tid
395 #define lsi_overrun _sifields._timer._overrun
396 #define lsi_sys_private _sifields._timer._sys_private
397 #define lsi_status _sifields._sigchld._status
398 #define lsi_utime _sifields._sigchld._utime
399 #define lsi_stime _sifields._sigchld._stime
400 #define lsi_value _sifields._rt._sigval
401 #define lsi_int _sifields._rt._sigval.sival_int
402 #define lsi_ptr _sifields._rt._sigval.sival_ptr
403 #define lsi_addr _sifields._sigfault._addr
404 #define lsi_band _sifields._sigpoll._band
405 #define lsi_fd _sifields._sigpoll._fd
406
407 struct l_fpreg {
408 u_int16_t significand[4];
409 u_int16_t exponent;
410 } __packed;
411
412 struct l_fpxreg {
413 u_int16_t significand[4];
414 u_int16_t exponent;
415 u_int16_t padding[3];
416 } __packed;
417
418 struct l_xmmreg {
419 u_int32_t element[4];
420 } __packed;
421
422 struct l_fpstate {
423 /* Regular FPU environment */
424 u_int32_t cw;
425 u_int32_t sw;
426 u_int32_t tag;
427 u_int32_t ipoff;
428 u_int32_t cssel;
429 u_int32_t dataoff;
430 u_int32_t datasel;
431 struct l_fpreg _st[8];
432 u_int16_t status;
433 u_int16_t magic; /* 0xffff = regular FPU data */
434
435 /* FXSR FPU environment */
436 u_int32_t _fxsr_env[6]; /* env is ignored. */
437 u_int32_t mxcsr;
438 u_int32_t reserved;
439 struct l_fpxreg _fxsr_st[8]; /* reg data is ignored. */
440 struct l_xmmreg _xmm[8];
441 u_int32_t padding[56];
442 } __packed;
443
444 /*
445 * We make the stack look like Linux expects it when calling a signal
446 * handler, but use the BSD way of calling the handler and sigreturn().
447 * This means that we need to pass the pointer to the handler too.
448 * It is appended to the frame to not interfere with the rest of it.
449 */
450 struct l_sigframe {
451 l_int sf_sig;
452 struct l_sigcontext sf_sc;
453 struct l_fpstate sf_fpstate;
454 l_uint sf_extramask[1];
455 l_handler_t sf_handler;
456 } __packed;
457
458 struct l_rt_sigframe {
459 l_int sf_sig;
460 l_uintptr_t sf_siginfo;
461 l_uintptr_t sf_ucontext;
462 l_siginfo_t sf_si;
463 struct l_ucontext sf_sc;
464 l_handler_t sf_handler;
465 } __packed;
466
467 /*
468 * arch specific open/fcntl flags
469 */
470 #define LINUX_F_GETLK64 12
471 #define LINUX_F_SETLK64 13
472 #define LINUX_F_SETLKW64 14
473
474 union l_semun {
475 l_int val;
476 l_uintptr_t buf;
477 l_uintptr_t array;
478 l_uintptr_t __buf;
479 l_uintptr_t __pad;
480 } __packed;
481
482 struct l_ipc_perm {
483 l_key_t key;
484 l_uid16_t uid;
485 l_gid16_t gid;
486 l_uid16_t cuid;
487 l_gid16_t cgid;
488 l_ushort mode;
489 l_ushort seq;
490 };
491
492 /*
493 * Socket defines
494 */
495 #define LINUX_SOL_SOCKET 1
496 #define LINUX_SOL_IP 0
497 #define LINUX_SOL_IPX 256
498 #define LINUX_SOL_AX25 257
499 #define LINUX_SOL_TCP 6
500 #define LINUX_SOL_UDP 17
501
502 #define LINUX_SO_DEBUG 1
503 #define LINUX_SO_REUSEADDR 2
504 #define LINUX_SO_TYPE 3
505 #define LINUX_SO_ERROR 4
506 #define LINUX_SO_DONTROUTE 5
507 #define LINUX_SO_BROADCAST 6
508 #define LINUX_SO_SNDBUF 7
509 #define LINUX_SO_RCVBUF 8
510 #define LINUX_SO_KEEPALIVE 9
511 #define LINUX_SO_OOBINLINE 10
512 #define LINUX_SO_NO_CHECK 11
513 #define LINUX_SO_PRIORITY 12
514 #define LINUX_SO_LINGER 13
515 #define LINUX_SO_PEERCRED 17
516 #define LINUX_SO_RCVLOWAT 18
517 #define LINUX_SO_SNDLOWAT 19
518 #define LINUX_SO_RCVTIMEO 20
519 #define LINUX_SO_SNDTIMEO 21
520 #define LINUX_SO_TIMESTAMP 29
521 #define LINUX_SO_ACCEPTCONN 30
522
523 struct l_sockaddr {
524 l_ushort sa_family;
525 char sa_data[14];
526 } __packed;
527
528 struct l_ifmap {
529 l_ulong mem_start;
530 l_ulong mem_end;
531 l_ushort base_addr;
532 u_char irq;
533 u_char dma;
534 u_char port;
535 } __packed;
536
537 #define LINUX_IFHWADDRLEN 6
538 #define LINUX_IFNAMSIZ 16
539
540 struct l_ifreq {
541 union {
542 char ifrn_name[LINUX_IFNAMSIZ];
543 } ifr_ifrn;
544
545 union {
546 struct l_sockaddr ifru_addr;
547 struct l_sockaddr ifru_dstaddr;
548 struct l_sockaddr ifru_broadaddr;
549 struct l_sockaddr ifru_netmask;
550 struct l_sockaddr ifru_hwaddr;
551 l_short ifru_flags[1];
552 l_int ifru_metric;
553 l_int ifru_mtu;
554 struct l_ifmap ifru_map;
555 char ifru_slave[LINUX_IFNAMSIZ];
556 l_uintptr_t ifru_data;
557 } ifr_ifru;
558 } __packed;
559
560 #define ifr_name ifr_ifrn.ifrn_name /* Interface name */
561 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */
562
563 struct l_ifconf {
564 int ifc_len;
565 union {
566 l_uintptr_t ifcu_buf;
567 l_uintptr_t ifcu_req;
568 } ifc_ifcu;
569 } __packed;
570
571 #define ifc_buf ifc_ifcu.ifcu_buf
572 #define ifc_req ifc_ifcu.ifcu_req
573
574 /*
575 * poll()
576 */
577 #define LINUX_POLLIN 0x0001
578 #define LINUX_POLLPRI 0x0002
579 #define LINUX_POLLOUT 0x0004
580 #define LINUX_POLLERR 0x0008
581 #define LINUX_POLLHUP 0x0010
582 #define LINUX_POLLNVAL 0x0020
583 #define LINUX_POLLRDNORM 0x0040
584 #define LINUX_POLLRDBAND 0x0080
585 #define LINUX_POLLWRNORM 0x0100
586 #define LINUX_POLLWRBAND 0x0200
587 #define LINUX_POLLMSG 0x0400
588
589 struct l_pollfd {
590 l_int fd;
591 l_short events;
592 l_short revents;
593 } __packed;
594
595 struct l_user_desc {
596 l_uint entry_number;
597 l_uint base_addr;
598 l_uint limit;
599 l_uint seg_32bit:1;
600 l_uint contents:2;
601 l_uint read_exec_only:1;
602 l_uint limit_in_pages:1;
603 l_uint seg_not_present:1;
604 l_uint useable:1;
605 };
606
607 #define LINUX_LOWERWORD 0x0000ffff
608
609 /*
610 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h.
611 * These convert Linux user space descriptor to machine one.
612 */
613 #define LINUX_LDT_entry_a(info) \
614 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \
615 ((info)->limit & LINUX_LOWERWORD))
616
617 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9
618 #define LINUX_ENTRY_B_CONTENTS 10
619 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15
620 #define LINUX_ENTRY_B_BASE_ADDR 16
621 #define LINUX_ENTRY_B_USEABLE 20
622 #define LINUX_ENTRY_B_SEG32BIT 22
623 #define LINUX_ENTRY_B_LIMIT 23
624
625 #define LINUX_LDT_entry_b(info) \
626 (((info)->base_addr & 0xff000000) | \
627 ((info)->limit & 0xf0000) | \
628 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \
629 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \
630 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \
631 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \
632 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \
633 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \
634 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000)
635
636 #define LINUX_LDT_empty(info) \
637 ((info)->base_addr == 0 && \
638 (info)->limit == 0 && \
639 (info)->contents == 0 && \
640 (info)->seg_not_present == 1 && \
641 (info)->read_exec_only == 1 && \
642 (info)->seg_32bit == 0 && \
643 (info)->limit_in_pages == 0 && \
644 (info)->useable == 0)
645
646 /*
647 * Macros for converting segments.
648 * They do the same as those in arch/i386/kernel/process.c in Linux.
649 */
650 #define LINUX_GET_BASE(desc) \
651 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \
652 (((desc)->b << 16) & 0x00ff0000) | \
653 ((desc)->b & 0xff000000))
654
655 #define LINUX_GET_LIMIT(desc) \
656 (((desc)->a & LINUX_LOWERWORD) | \
657 ((desc)->b & 0xf0000))
658
659 #define LINUX_GET_32BIT(desc) \
660 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1)
661 #define LINUX_GET_CONTENTS(desc) \
662 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3)
663 #define LINUX_GET_WRITABLE(desc) \
664 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1)
665 #define LINUX_GET_LIMIT_PAGES(desc) \
666 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1)
667 #define LINUX_GET_PRESENT(desc) \
668 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1)
669 #define LINUX_GET_USEABLE(desc) \
670 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1)
671
672 struct iovec;
673
674 struct l_iovec32 {
675 uint32_t iov_base;
676 l_size_t iov_len;
677 };
678
679 int linux32_copyiniov(struct l_iovec32 *iovp32, l_ulong iovcnt,
680 struct iovec **iovp, int error);
681 int linux_copyout_rusage(struct rusage *ru, void *uaddr);
682
683 /* robust futexes */
684 struct linux_robust_list {
685 l_uintptr_t next;
686 };
687
688 struct linux_robust_list_head {
689 struct linux_robust_list list;
690 l_long futex_offset;
691 l_uintptr_t pending_list;
692 };
693
694 #endif /* !_AMD64_LINUX_H_ */
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