2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 1994-1996 Søren Schmidt
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #ifndef _I386_LINUX_H_
31 #define _I386_LINUX_H_
33 #include <sys/abi_compat.h>
34 #include <sys/signal.h> /* for sigval union */
36 #include <compat/linux/linux.h>
37 #include <i386/linux/linux_syscall.h>
39 #define LINUX_LEGACY_SYSCALLS
41 #define LINUX_DTRACE linuxulator
43 #define LINUX_SHAREDPAGE (VM_MAXUSER_ADDRESS - PAGE_SIZE)
44 #define LINUX_USRSTACK LINUX_SHAREDPAGE
47 * Provide a separate set of types for the Linux types.
50 typedef int32_t l_long;
51 typedef int64_t l_longlong;
52 typedef short l_short;
53 typedef unsigned int l_uint;
54 typedef uint32_t l_ulong;
55 typedef uint64_t l_ulonglong;
56 typedef unsigned short l_ushort;
58 typedef char *l_caddr_t;
59 typedef l_ulong l_uintptr_t;
60 typedef l_long l_clock_t;
61 typedef l_int l_daddr_t;
62 typedef l_ushort l_dev_t;
63 typedef l_uint l_gid_t;
64 typedef l_ushort l_gid16_t;
65 typedef l_ulong l_ino_t;
66 typedef l_int l_key_t;
67 typedef l_longlong l_loff_t;
68 typedef l_ushort l_mode_t;
69 typedef l_long l_off_t;
70 typedef l_int l_pid_t;
71 typedef l_uint l_size_t;
72 typedef l_long l_suseconds_t;
73 typedef l_long l_time_t;
74 typedef l_uint l_uid_t;
75 typedef l_ushort l_uid16_t;
76 typedef l_int l_timer_t;
77 typedef l_int l_mqd_t;
78 typedef l_ulong l_fd_mask;
86 l_suseconds_t tv_usec;
89 #define l_fd_set fd_set
94 #define LINUX_AT_COUNT 20 /* Count of used aux entry types.
95 * Keep this synchronized with
96 * linux_fixup_elf() code.
98 struct l___sysctl_args
109 /* Resource limits */
110 #define LINUX_RLIMIT_CPU 0
111 #define LINUX_RLIMIT_FSIZE 1
112 #define LINUX_RLIMIT_DATA 2
113 #define LINUX_RLIMIT_STACK 3
114 #define LINUX_RLIMIT_CORE 4
115 #define LINUX_RLIMIT_RSS 5
116 #define LINUX_RLIMIT_NPROC 6
117 #define LINUX_RLIMIT_NOFILE 7
118 #define LINUX_RLIMIT_MEMLOCK 8
119 #define LINUX_RLIMIT_AS 9 /* Address space limit */
121 #define LINUX_RLIM_NLIMITS 10
138 * stat family of syscalls
158 struct l_timespec st_atim;
159 struct l_timespec st_mtim;
160 struct l_timespec st_ctim;
174 struct l_timespec st_atim;
175 struct l_timespec st_mtim;
176 struct l_timespec st_ctim;
197 struct l_timespec st_atim;
198 struct l_timespec st_mtim;
199 struct l_timespec st_ctim;
218 #define LINUX_NSIG_WORDS 2
220 /* sigaction flags */
221 #define LINUX_SA_NOCLDSTOP 0x00000001
222 #define LINUX_SA_NOCLDWAIT 0x00000002
223 #define LINUX_SA_SIGINFO 0x00000004
224 #define LINUX_SA_RESTORER 0x04000000
225 #define LINUX_SA_ONSTACK 0x08000000
226 #define LINUX_SA_RESTART 0x10000000
227 #define LINUX_SA_INTERRUPT 0x20000000
228 #define LINUX_SA_NOMASK 0x40000000
229 #define LINUX_SA_ONESHOT 0x80000000
231 /* sigprocmask actions */
232 #define LINUX_SIG_BLOCK 0
233 #define LINUX_SIG_UNBLOCK 1
234 #define LINUX_SIG_SETMASK 2
237 #define LINUX_MINSIGSTKSZ 2048
239 typedef void (*l_handler_t)(l_int);
240 typedef l_ulong l_osigset_t;
243 l_handler_t lsa_handler;
244 l_osigset_t lsa_mask;
246 void (*lsa_restorer)(void);
250 l_handler_t lsa_handler;
252 void (*lsa_restorer)(void);
262 /* The Linux sigcontext, pretty much a standard 386 trapframe. */
263 struct l_sigcontext {
281 l_int sc_esp_at_signal;
292 struct l_sigcontext uc_mcontext;
293 l_sigset_t uc_sigmask;
296 #define LINUX_SI_MAX_SIZE 128
297 #define LINUX_SI_PAD_SIZE ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3)
299 typedef union l_sigval {
301 l_uintptr_t sival_ptr;
304 typedef struct l_siginfo {
309 l_int _pad[LINUX_SI_PAD_SIZE];
319 char _pad[sizeof(l_uid_t) - sizeof(l_int)];
325 l_pid_t _pid; /* sender's pid */
326 l_uid_t _uid; /* sender's uid */
331 l_pid_t _pid; /* which child */
332 l_uid_t _uid; /* sender's uid */
333 l_int _status; /* exit code */
339 l_uintptr_t _addr; /* Faulting insn/memory ref. */
343 l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */
349 #define lsi_pid _sifields._kill._pid
350 #define lsi_uid _sifields._kill._uid
351 #define lsi_tid _sifields._timer._tid
352 #define lsi_overrun _sifields._timer._overrun
353 #define lsi_sys_private _sifields._timer._sys_private
354 #define lsi_status _sifields._sigchld._status
355 #define lsi_utime _sifields._sigchld._utime
356 #define lsi_stime _sifields._sigchld._stime
357 #define lsi_value _sifields._rt._sigval
358 #define lsi_int _sifields._rt._sigval.sival_int
359 #define lsi_ptr _sifields._rt._sigval.sival_ptr
360 #define lsi_addr _sifields._sigfault._addr
361 #define lsi_band _sifields._sigpoll._band
362 #define lsi_fd _sifields._sigpoll._fd
365 u_int16_t significand[4];
370 u_int16_t significand[4];
372 u_int16_t padding[3];
376 u_int32_t element[4];
380 /* Regular FPU environment */
388 struct l_fpreg _st[8];
390 u_int16_t magic; /* 0xffff = regular FPU data */
392 /* FXSR FPU environment */
393 u_int32_t _fxsr_env[6]; /* env is ignored. */
396 struct l_fpxreg _fxsr_st[8]; /* reg data is ignored. */
397 struct l_xmmreg _xmm[8];
398 u_int32_t padding[56];
402 * We make the stack look like Linux expects it when calling a signal
403 * handler, but use the BSD way of calling the handler and sigreturn().
404 * This means that we need to pass the pointer to the handler too.
405 * It is appended to the frame to not interfere with the rest of it.
409 struct l_sigcontext sf_sc;
410 struct l_fpstate sf_fpstate;
411 l_uint sf_extramask[LINUX_NSIG_WORDS-1];
412 l_handler_t sf_handler;
415 struct l_rt_sigframe {
417 l_siginfo_t *sf_siginfo;
418 struct l_ucontext *sf_ucontext;
420 struct l_ucontext sf_sc;
421 l_handler_t sf_handler;
424 extern struct sysentvec linux_sysvec;
427 * arch specific open/fcntl flags
429 #define LINUX_F_GETLK64 12
430 #define LINUX_F_SETLK64 13
431 #define LINUX_F_SETLKW64 14
452 char ifrn_name[LINUX_IFNAMSIZ];
456 struct l_sockaddr ifru_addr;
457 struct l_sockaddr ifru_dstaddr;
458 struct l_sockaddr ifru_broadaddr;
459 struct l_sockaddr ifru_netmask;
460 struct l_sockaddr ifru_hwaddr;
461 l_short ifru_flags[1];
464 struct l_ifmap ifru_map;
465 char ifru_slave[LINUX_IFNAMSIZ];
470 #define ifr_name ifr_ifrn.ifrn_name /* Interface name */
471 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */
472 #define ifr_ifindex ifr_ifru.ifru_ivalue /* Interface index */
477 #define LINUX_POLLIN 0x0001
478 #define LINUX_POLLPRI 0x0002
479 #define LINUX_POLLOUT 0x0004
480 #define LINUX_POLLERR 0x0008
481 #define LINUX_POLLHUP 0x0010
482 #define LINUX_POLLNVAL 0x0020
483 #define LINUX_POLLRDNORM 0x0040
484 #define LINUX_POLLRDBAND 0x0080
485 #define LINUX_POLLWRNORM 0x0100
486 #define LINUX_POLLWRBAND 0x0200
487 #define LINUX_POLLMSG 0x0400
501 l_uint read_exec_only:1;
502 l_uint limit_in_pages:1;
503 l_uint seg_not_present:1;
507 struct l_desc_struct {
512 #define LINUX_LOWERWORD 0x0000ffff
515 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h.
516 * These convert Linux user space descriptor to machine one.
518 #define LINUX_LDT_entry_a(info) \
519 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \
520 ((info)->limit & LINUX_LOWERWORD))
522 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9
523 #define LINUX_ENTRY_B_CONTENTS 10
524 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15
525 #define LINUX_ENTRY_B_BASE_ADDR 16
526 #define LINUX_ENTRY_B_USEABLE 20
527 #define LINUX_ENTRY_B_SEG32BIT 22
528 #define LINUX_ENTRY_B_LIMIT 23
530 #define LINUX_LDT_entry_b(info) \
531 (((info)->base_addr & 0xff000000) | \
532 ((info)->limit & 0xf0000) | \
533 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \
534 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \
535 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \
536 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \
537 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \
538 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \
539 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000)
541 #define LINUX_LDT_empty(info) \
542 ((info)->base_addr == 0 && \
543 (info)->limit == 0 && \
544 (info)->contents == 0 && \
545 (info)->seg_not_present == 1 && \
546 (info)->read_exec_only == 1 && \
547 (info)->seg_32bit == 0 && \
548 (info)->limit_in_pages == 0 && \
549 (info)->useable == 0)
552 * Macros for converting segments.
553 * They do the same as those in arch/i386/kernel/process.c in Linux.
555 #define LINUX_GET_BASE(desc) \
556 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \
557 (((desc)->b << 16) & 0x00ff0000) | \
558 ((desc)->b & 0xff000000))
560 #define LINUX_GET_LIMIT(desc) \
561 (((desc)->a & LINUX_LOWERWORD) | \
562 ((desc)->b & 0xf0000))
564 #define LINUX_GET_32BIT(desc) \
565 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1)
566 #define LINUX_GET_CONTENTS(desc) \
567 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3)
568 #define LINUX_GET_WRITABLE(desc) \
569 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1)
570 #define LINUX_GET_LIMIT_PAGES(desc) \
571 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1)
572 #define LINUX_GET_PRESENT(desc) \
573 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1)
574 #define LINUX_GET_USEABLE(desc) \
575 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1)
577 #define linux_copyout_rusage(r, u) copyout(r, u, sizeof(*r))
580 struct linux_robust_list {
581 struct linux_robust_list *next;
584 struct linux_robust_list_head {
585 struct linux_robust_list list;
587 struct linux_robust_list *pending_list;
590 #endif /* !_I386_LINUX_H_ */