2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2004 Tim J. Robbins
5 * Copyright (c) 2001 Doug Rabson
6 * Copyright (c) 1994-1996 Søren Schmidt
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer
14 * in this position and unchanged.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 #ifndef _AMD64_LINUX_H_
36 #define _AMD64_LINUX_H_
38 #include <sys/abi_compat.h>
40 #include <compat/linux/linux.h>
41 #include <amd64/linux32/linux32_syscall.h>
43 #define LINUX_LEGACY_SYSCALLS
45 #define LINUX_DTRACE linuxulator32
47 #define LINUX32_MAXUSER ((1ul << 32) - PAGE_SIZE)
48 #define LINUX32_SHAREDPAGE (LINUX32_MAXUSER - PAGE_SIZE)
49 #define LINUX32_USRSTACK LINUX32_SHAREDPAGE
51 /* XXX 16 = sizeof(linux32_ps_strings) */
52 #define LINUX32_PS_STRINGS (LINUX32_USRSTACK - 16)
53 #define LINUX32_MAXDSIZ (512 * 1024 * 1024) /* 512MB */
54 #define LINUX32_MAXSSIZ (64 * 1024 * 1024) /* 64MB */
55 #define LINUX32_MAXVMEM 0 /* Unlimited */
58 * Provide a separate set of types for the Linux types.
61 typedef int32_t l_long;
62 typedef int64_t l_longlong;
63 typedef short l_short;
64 typedef unsigned int l_uint;
65 typedef uint32_t l_ulong;
66 typedef uint64_t l_ulonglong;
67 typedef unsigned short l_ushort;
69 typedef l_ulong l_uintptr_t;
70 typedef l_long l_clock_t;
71 typedef l_int l_daddr_t;
72 typedef l_ushort l_dev_t;
73 typedef l_uint l_gid_t;
74 typedef l_ushort l_gid16_t;
75 typedef l_ulong l_ino_t;
76 typedef l_int l_key_t;
77 typedef l_longlong l_loff_t;
78 typedef l_ushort l_mode_t;
79 typedef l_long l_off_t;
80 typedef l_int l_pid_t;
81 typedef l_uint l_size_t;
82 typedef l_long l_suseconds_t;
83 typedef l_long l_time_t;
84 typedef l_longlong l_time64_t;
85 typedef l_uint l_uid_t;
86 typedef l_ushort l_uid16_t;
87 typedef l_int l_timer_t;
88 typedef l_int l_mqd_t;
89 typedef l_ulong l_fd_mask;
97 l_suseconds_t tv_usec;
100 #define l_fd_set fd_set
105 #define LINUX_AT_COUNT 21 /* Count of used aux entry types.
106 * Keep this synchronized with
107 * linux_fixup_elf() code.
109 struct l___sysctl_args
120 /* Resource limits */
121 #define LINUX_RLIMIT_CPU 0
122 #define LINUX_RLIMIT_FSIZE 1
123 #define LINUX_RLIMIT_DATA 2
124 #define LINUX_RLIMIT_STACK 3
125 #define LINUX_RLIMIT_CORE 4
126 #define LINUX_RLIMIT_RSS 5
127 #define LINUX_RLIMIT_NPROC 6
128 #define LINUX_RLIMIT_NOFILE 7
129 #define LINUX_RLIMIT_MEMLOCK 8
130 #define LINUX_RLIMIT_AS 9 /* Address space limit */
132 #define LINUX_RLIM_NLIMITS 10
168 * stat family of syscalls
175 /* __kernel_timespec */
176 struct l_timespec64 {
194 struct l_timespec st_atim;
195 struct l_timespec st_mtim;
196 struct l_timespec st_ctim;
210 struct l_timespec st_atim;
211 struct l_timespec st_mtim;
212 struct l_timespec st_ctim;
233 struct l_timespec st_atim;
234 struct l_timespec st_mtim;
235 struct l_timespec st_ctim;
254 /* sigaction flags */
255 #define LINUX_SA_NOCLDSTOP 0x00000001
256 #define LINUX_SA_NOCLDWAIT 0x00000002
257 #define LINUX_SA_SIGINFO 0x00000004
258 #define LINUX_SA_RESTORER 0x04000000
259 #define LINUX_SA_ONSTACK 0x08000000
260 #define LINUX_SA_RESTART 0x10000000
261 #define LINUX_SA_INTERRUPT 0x20000000
262 #define LINUX_SA_NOMASK 0x40000000
263 #define LINUX_SA_ONESHOT 0x80000000
265 /* sigprocmask actions */
266 #define LINUX_SIG_BLOCK 0
267 #define LINUX_SIG_UNBLOCK 1
268 #define LINUX_SIG_SETMASK 2
271 #define LINUX_MINSIGSTKSZ 2048
273 typedef l_uintptr_t l_handler_t;
274 typedef l_ulong l_osigset_t;
277 l_handler_t lsa_handler;
278 l_osigset_t lsa_mask;
280 l_uintptr_t lsa_restorer;
284 l_handler_t lsa_handler;
286 l_uintptr_t lsa_restorer;
288 } __packed l_sigaction_t;
296 /* The Linux sigcontext, pretty much a standard 386 trapframe. */
297 struct l_sigcontext {
315 l_uint sc_esp_at_signal;
326 struct l_sigcontext uc_mcontext;
327 l_sigset_t uc_sigmask;
330 #define LINUX_SI_MAX_SIZE 128
331 #define LINUX_SI_PAD_SIZE ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3)
333 typedef union l_sigval {
335 l_uintptr_t sival_ptr;
338 typedef struct l_siginfo {
343 l_int _pad[LINUX_SI_PAD_SIZE];
353 char _pad[sizeof(l_uid_t) - sizeof(l_int)];
359 l_pid_t _pid; /* sender's pid */
360 l_uid_t _uid; /* sender's uid */
365 l_pid_t _pid; /* which child */
366 l_uid_t _uid; /* sender's uid */
367 l_int _status; /* exit code */
373 l_uintptr_t _addr; /* Faulting insn/memory ref. */
377 l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */
383 #define lsi_pid _sifields._kill._pid
384 #define lsi_uid _sifields._kill._uid
385 #define lsi_tid _sifields._timer._tid
386 #define lsi_overrun _sifields._timer._overrun
387 #define lsi_sys_private _sifields._timer._sys_private
388 #define lsi_status _sifields._sigchld._status
389 #define lsi_utime _sifields._sigchld._utime
390 #define lsi_stime _sifields._sigchld._stime
391 #define lsi_value _sifields._rt._sigval
392 #define lsi_int _sifields._rt._sigval.sival_int
393 #define lsi_ptr _sifields._rt._sigval.sival_ptr
394 #define lsi_addr _sifields._sigfault._addr
395 #define lsi_band _sifields._sigpoll._band
396 #define lsi_fd _sifields._sigpoll._fd
399 u_int16_t significand[4];
404 u_int16_t significand[4];
406 u_int16_t padding[3];
410 u_int32_t element[4];
414 /* Regular FPU environment */
422 struct l_fpreg _st[8];
424 u_int16_t magic; /* 0xffff = regular FPU data */
426 /* FXSR FPU environment */
427 u_int32_t _fxsr_env[6]; /* env is ignored. */
430 struct l_fpxreg _fxsr_st[8]; /* reg data is ignored. */
431 struct l_xmmreg _xmm[8];
432 u_int32_t padding[56];
436 * We make the stack look like Linux expects it when calling a signal
437 * handler, but use the BSD way of calling the handler and sigreturn().
438 * This means that we need to pass the pointer to the handler too.
439 * It is appended to the frame to not interfere with the rest of it.
443 struct l_sigcontext sf_sc;
444 struct l_fpstate sf_fpstate;
445 l_uint sf_extramask[1];
446 l_handler_t sf_handler;
449 struct l_rt_sigframe {
451 l_uintptr_t sf_siginfo;
452 l_uintptr_t sf_ucontext;
454 struct l_ucontext sf_sc;
455 l_handler_t sf_handler;
459 * arch specific open/fcntl flags
461 #define LINUX_F_GETLK64 12
462 #define LINUX_F_SETLK64 13
463 #define LINUX_F_SETLKW64 14
485 char ifrn_name[LINUX_IFNAMSIZ];
489 struct l_sockaddr ifru_addr;
490 struct l_sockaddr ifru_dstaddr;
491 struct l_sockaddr ifru_broadaddr;
492 struct l_sockaddr ifru_netmask;
493 struct l_sockaddr ifru_hwaddr;
494 l_short ifru_flags[1];
497 struct l_ifmap ifru_map;
498 char ifru_slave[LINUX_IFNAMSIZ];
499 l_uintptr_t ifru_data;
503 #define ifr_name ifr_ifrn.ifrn_name /* Interface name */
504 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */
505 #define ifr_ifindex ifr_ifru.ifru_ivalue /* Interface index */
510 l_uintptr_t ifcu_buf;
511 l_uintptr_t ifcu_req;
515 #define ifc_buf ifc_ifcu.ifcu_buf
516 #define ifc_req ifc_ifcu.ifcu_req
521 #define LINUX_POLLIN 0x0001
522 #define LINUX_POLLPRI 0x0002
523 #define LINUX_POLLOUT 0x0004
524 #define LINUX_POLLERR 0x0008
525 #define LINUX_POLLHUP 0x0010
526 #define LINUX_POLLNVAL 0x0020
527 #define LINUX_POLLRDNORM 0x0040
528 #define LINUX_POLLRDBAND 0x0080
529 #define LINUX_POLLWRNORM 0x0100
530 #define LINUX_POLLWRBAND 0x0200
531 #define LINUX_POLLMSG 0x0400
545 l_uint read_exec_only:1;
546 l_uint limit_in_pages:1;
547 l_uint seg_not_present:1;
551 #define LINUX_LOWERWORD 0x0000ffff
554 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h.
555 * These convert Linux user space descriptor to machine one.
557 #define LINUX_LDT_entry_a(info) \
558 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \
559 ((info)->limit & LINUX_LOWERWORD))
561 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9
562 #define LINUX_ENTRY_B_CONTENTS 10
563 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15
564 #define LINUX_ENTRY_B_BASE_ADDR 16
565 #define LINUX_ENTRY_B_USEABLE 20
566 #define LINUX_ENTRY_B_SEG32BIT 22
567 #define LINUX_ENTRY_B_LIMIT 23
569 #define LINUX_LDT_entry_b(info) \
570 (((info)->base_addr & 0xff000000) | \
571 ((info)->limit & 0xf0000) | \
572 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \
573 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \
574 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \
575 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \
576 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \
577 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \
578 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000)
580 #define LINUX_LDT_empty(info) \
581 ((info)->base_addr == 0 && \
582 (info)->limit == 0 && \
583 (info)->contents == 0 && \
584 (info)->seg_not_present == 1 && \
585 (info)->read_exec_only == 1 && \
586 (info)->seg_32bit == 0 && \
587 (info)->limit_in_pages == 0 && \
588 (info)->useable == 0)
591 * Macros for converting segments.
592 * They do the same as those in arch/i386/kernel/process.c in Linux.
594 #define LINUX_GET_BASE(desc) \
595 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \
596 (((desc)->b << 16) & 0x00ff0000) | \
597 ((desc)->b & 0xff000000))
599 #define LINUX_GET_LIMIT(desc) \
600 (((desc)->a & LINUX_LOWERWORD) | \
601 ((desc)->b & 0xf0000))
603 #define LINUX_GET_32BIT(desc) \
604 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1)
605 #define LINUX_GET_CONTENTS(desc) \
606 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3)
607 #define LINUX_GET_WRITABLE(desc) \
608 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1)
609 #define LINUX_GET_LIMIT_PAGES(desc) \
610 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1)
611 #define LINUX_GET_PRESENT(desc) \
612 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1)
613 #define LINUX_GET_USEABLE(desc) \
614 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1)
624 int linux32_copyiniov(struct l_iovec32 *iovp32, l_ulong iovcnt,
625 struct iovec **iovp, int error);
626 int linux32_copyinuio(struct l_iovec32 *iovp, l_ulong iovcnt,
628 int linux_copyout_rusage(struct rusage *ru, void *uaddr);
631 struct linux_robust_list {
635 struct linux_robust_list_head {
636 struct linux_robust_list list;
638 l_uintptr_t pending_list;
641 /* This corresponds to 'struct user_regs_struct32' in Linux. */
642 struct linux_pt_regset32 {
664 void bsd_to_linux_regset32(struct reg32 *b_reg,
665 struct linux_pt_regset32 *l_regset);
667 #endif /* !_AMD64_LINUX_H_ */