libc/unix/linux_like/linux/gnu/
mod.rs

1use crate::off64_t;
2use crate::prelude::*;
3
4pub type pthread_t = c_ulong;
5pub type __priority_which_t = c_uint;
6pub type __rlimit_resource_t = c_uint;
7pub type Lmid_t = c_long;
8pub type regoff_t = c_int;
9pub type __kernel_rwf_t = c_int;
10
11cfg_if! {
12    if #[cfg(doc)] {
13        // Used in `linux::arch` to define ioctl constants.
14        pub(crate) type Ioctl = c_ulong;
15    } else {
16        #[doc(hidden)]
17        pub type Ioctl = c_ulong;
18    }
19}
20
21s! {
22    pub struct aiocb {
23        pub aio_fildes: c_int,
24        pub aio_lio_opcode: c_int,
25        pub aio_reqprio: c_int,
26        pub aio_buf: *mut c_void,
27        pub aio_nbytes: size_t,
28        pub aio_sigevent: crate::sigevent,
29        __next_prio: *mut aiocb,
30        __abs_prio: c_int,
31        __policy: c_int,
32        __error_code: c_int,
33        __return_value: ssize_t,
34        pub aio_offset: off_t,
35        #[cfg(all(
36            not(gnu_file_offset_bits64),
37            not(target_arch = "x86_64"),
38            target_pointer_width = "32"
39        ))]
40        __unused1: [c_char; 4],
41        __glibc_reserved: [c_char; 32],
42    }
43
44    pub struct __exit_status {
45        pub e_termination: c_short,
46        pub e_exit: c_short,
47    }
48
49    pub struct __timeval {
50        pub tv_sec: i32,
51        pub tv_usec: i32,
52    }
53
54    pub struct glob64_t {
55        pub gl_pathc: size_t,
56        pub gl_pathv: *mut *mut c_char,
57        pub gl_offs: size_t,
58        pub gl_flags: c_int,
59
60        __unused1: *mut c_void,
61        __unused2: *mut c_void,
62        __unused3: *mut c_void,
63        __unused4: *mut c_void,
64        __unused5: *mut c_void,
65    }
66
67    pub struct msghdr {
68        pub msg_name: *mut c_void,
69        pub msg_namelen: crate::socklen_t,
70        pub msg_iov: *mut crate::iovec,
71        pub msg_iovlen: size_t,
72        pub msg_control: *mut c_void,
73        pub msg_controllen: size_t,
74        pub msg_flags: c_int,
75    }
76
77    pub struct cmsghdr {
78        pub cmsg_len: size_t,
79        pub cmsg_level: c_int,
80        pub cmsg_type: c_int,
81    }
82
83    pub struct termios {
84        pub c_iflag: crate::tcflag_t,
85        pub c_oflag: crate::tcflag_t,
86        pub c_cflag: crate::tcflag_t,
87        pub c_lflag: crate::tcflag_t,
88        pub c_line: crate::cc_t,
89        pub c_cc: [crate::cc_t; crate::NCCS],
90        #[cfg(not(any(
91            target_arch = "sparc",
92            target_arch = "sparc64",
93            target_arch = "mips",
94            target_arch = "mips32r6",
95            target_arch = "mips64",
96            target_arch = "mips64r6"
97        )))]
98        pub c_ispeed: crate::speed_t,
99        #[cfg(not(any(
100            target_arch = "sparc",
101            target_arch = "sparc64",
102            target_arch = "mips",
103            target_arch = "mips32r6",
104            target_arch = "mips64",
105            target_arch = "mips64r6"
106        )))]
107        pub c_ospeed: crate::speed_t,
108    }
109
110    pub struct mallinfo {
111        pub arena: c_int,
112        pub ordblks: c_int,
113        pub smblks: c_int,
114        pub hblks: c_int,
115        pub hblkhd: c_int,
116        pub usmblks: c_int,
117        pub fsmblks: c_int,
118        pub uordblks: c_int,
119        pub fordblks: c_int,
120        pub keepcost: c_int,
121    }
122
123    pub struct mallinfo2 {
124        pub arena: size_t,
125        pub ordblks: size_t,
126        pub smblks: size_t,
127        pub hblks: size_t,
128        pub hblkhd: size_t,
129        pub usmblks: size_t,
130        pub fsmblks: size_t,
131        pub uordblks: size_t,
132        pub fordblks: size_t,
133        pub keepcost: size_t,
134    }
135
136    pub struct nl_pktinfo {
137        pub group: u32,
138    }
139
140    pub struct nl_mmap_req {
141        pub nm_block_size: c_uint,
142        pub nm_block_nr: c_uint,
143        pub nm_frame_size: c_uint,
144        pub nm_frame_nr: c_uint,
145    }
146
147    pub struct nl_mmap_hdr {
148        pub nm_status: c_uint,
149        pub nm_len: c_uint,
150        pub nm_group: u32,
151        pub nm_pid: u32,
152        pub nm_uid: u32,
153        pub nm_gid: u32,
154    }
155
156    pub struct rtentry {
157        pub rt_pad1: c_ulong,
158        pub rt_dst: crate::sockaddr,
159        pub rt_gateway: crate::sockaddr,
160        pub rt_genmask: crate::sockaddr,
161        pub rt_flags: c_ushort,
162        pub rt_pad2: c_short,
163        pub rt_pad3: c_ulong,
164        pub rt_tos: c_uchar,
165        pub rt_class: c_uchar,
166        #[cfg(target_pointer_width = "64")]
167        pub rt_pad4: [c_short; 3usize],
168        #[cfg(not(target_pointer_width = "64"))]
169        pub rt_pad4: c_short,
170        pub rt_metric: c_short,
171        pub rt_dev: *mut c_char,
172        pub rt_mtu: c_ulong,
173        pub rt_window: c_ulong,
174        pub rt_irtt: c_ushort,
175    }
176
177    pub struct timex {
178        pub modes: c_uint,
179        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
180        pub offset: i64,
181        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
182        pub offset: c_long,
183        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
184        pub freq: i64,
185        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
186        pub freq: c_long,
187        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
188        pub maxerror: i64,
189        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
190        pub maxerror: c_long,
191        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
192        pub esterror: i64,
193        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
194        pub esterror: c_long,
195        pub status: c_int,
196        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
197        pub constant: i64,
198        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
199        pub constant: c_long,
200        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
201        pub precision: i64,
202        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
203        pub precision: c_long,
204        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
205        pub tolerance: i64,
206        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
207        pub tolerance: c_long,
208        pub time: crate::timeval,
209        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
210        pub tick: i64,
211        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
212        pub tick: c_long,
213        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
214        pub ppsfreq: i64,
215        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
216        pub ppsfreq: c_long,
217        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
218        pub jitter: i64,
219        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
220        pub jitter: c_long,
221        pub shift: c_int,
222        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
223        pub stabil: i64,
224        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
225        pub stabil: c_long,
226        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
227        pub jitcnt: i64,
228        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
229        pub jitcnt: c_long,
230        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
231        pub calcnt: i64,
232        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
233        pub calcnt: c_long,
234        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
235        pub errcnt: i64,
236        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
237        pub errcnt: c_long,
238        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
239        pub stbcnt: i64,
240        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
241        pub stbcnt: c_long,
242        pub tai: c_int,
243        pub __unused1: i32,
244        pub __unused2: i32,
245        pub __unused3: i32,
246        pub __unused4: i32,
247        pub __unused5: i32,
248        pub __unused6: i32,
249        pub __unused7: i32,
250        pub __unused8: i32,
251        pub __unused9: i32,
252        pub __unused10: i32,
253        pub __unused11: i32,
254    }
255
256    pub struct ntptimeval {
257        pub time: crate::timeval,
258        pub maxerror: c_long,
259        pub esterror: c_long,
260        pub tai: c_long,
261        pub __glibc_reserved1: c_long,
262        pub __glibc_reserved2: c_long,
263        pub __glibc_reserved3: c_long,
264        pub __glibc_reserved4: c_long,
265    }
266
267    pub struct regex_t {
268        __buffer: *mut c_void,
269        __allocated: size_t,
270        __used: size_t,
271        __syntax: c_ulong,
272        __fastmap: *mut c_char,
273        __translate: *mut c_char,
274        __re_nsub: size_t,
275        __bitfield: u8,
276    }
277
278    pub struct Elf64_Chdr {
279        pub ch_type: crate::Elf64_Word,
280        pub ch_reserved: crate::Elf64_Word,
281        pub ch_size: crate::Elf64_Xword,
282        pub ch_addralign: crate::Elf64_Xword,
283    }
284
285    pub struct Elf32_Chdr {
286        pub ch_type: crate::Elf32_Word,
287        pub ch_size: crate::Elf32_Word,
288        pub ch_addralign: crate::Elf32_Word,
289    }
290
291    pub struct seminfo {
292        pub semmap: c_int,
293        pub semmni: c_int,
294        pub semmns: c_int,
295        pub semmnu: c_int,
296        pub semmsl: c_int,
297        pub semopm: c_int,
298        pub semume: c_int,
299        pub semusz: c_int,
300        pub semvmx: c_int,
301        pub semaem: c_int,
302    }
303
304    pub struct ptrace_peeksiginfo_args {
305        pub off: crate::__u64,
306        pub flags: crate::__u32,
307        pub nr: crate::__s32,
308    }
309
310    pub struct __c_anonymous_ptrace_syscall_info_entry {
311        pub nr: crate::__u64,
312        pub args: [crate::__u64; 6],
313    }
314
315    pub struct __c_anonymous_ptrace_syscall_info_exit {
316        pub sval: crate::__s64,
317        pub is_error: crate::__u8,
318    }
319
320    pub struct __c_anonymous_ptrace_syscall_info_seccomp {
321        pub nr: crate::__u64,
322        pub args: [crate::__u64; 6],
323        pub ret_data: crate::__u32,
324    }
325
326    pub struct ptrace_syscall_info {
327        pub op: crate::__u8,
328        pub pad: [crate::__u8; 3],
329        pub arch: crate::__u32,
330        pub instruction_pointer: crate::__u64,
331        pub stack_pointer: crate::__u64,
332        pub u: __c_anonymous_ptrace_syscall_info_data,
333    }
334
335    pub struct ptrace_sud_config {
336        pub mode: crate::__u64,
337        pub selector: crate::__u64,
338        pub offset: crate::__u64,
339        pub len: crate::__u64,
340    }
341
342    pub struct iocb {
343        pub aio_data: crate::__u64,
344        #[cfg(target_endian = "little")]
345        pub aio_key: crate::__u32,
346        #[cfg(target_endian = "little")]
347        pub aio_rw_flags: crate::__kernel_rwf_t,
348        #[cfg(target_endian = "big")]
349        pub aio_rw_flags: crate::__kernel_rwf_t,
350        #[cfg(target_endian = "big")]
351        pub aio_key: crate::__u32,
352        pub aio_lio_opcode: crate::__u16,
353        pub aio_reqprio: crate::__s16,
354        pub aio_fildes: crate::__u32,
355        pub aio_buf: crate::__u64,
356        pub aio_nbytes: crate::__u64,
357        pub aio_offset: crate::__s64,
358        aio_reserved2: crate::__u64,
359        pub aio_flags: crate::__u32,
360        pub aio_resfd: crate::__u32,
361    }
362
363    // netinet/tcp.h
364
365    pub struct tcp_info {
366        pub tcpi_state: u8,
367        pub tcpi_ca_state: u8,
368        pub tcpi_retransmits: u8,
369        pub tcpi_probes: u8,
370        pub tcpi_backoff: u8,
371        pub tcpi_options: u8,
372        /// This contains the bitfields `tcpi_snd_wscale` and `tcpi_rcv_wscale`.
373        /// Each is 4 bits.
374        pub tcpi_snd_rcv_wscale: u8,
375        pub tcpi_rto: u32,
376        pub tcpi_ato: u32,
377        pub tcpi_snd_mss: u32,
378        pub tcpi_rcv_mss: u32,
379        pub tcpi_unacked: u32,
380        pub tcpi_sacked: u32,
381        pub tcpi_lost: u32,
382        pub tcpi_retrans: u32,
383        pub tcpi_fackets: u32,
384        pub tcpi_last_data_sent: u32,
385        pub tcpi_last_ack_sent: u32,
386        pub tcpi_last_data_recv: u32,
387        pub tcpi_last_ack_recv: u32,
388        pub tcpi_pmtu: u32,
389        pub tcpi_rcv_ssthresh: u32,
390        pub tcpi_rtt: u32,
391        pub tcpi_rttvar: u32,
392        pub tcpi_snd_ssthresh: u32,
393        pub tcpi_snd_cwnd: u32,
394        pub tcpi_advmss: u32,
395        pub tcpi_reordering: u32,
396        pub tcpi_rcv_rtt: u32,
397        pub tcpi_rcv_space: u32,
398        pub tcpi_total_retrans: u32,
399    }
400
401    pub struct fanotify_event_info_pidfd {
402        pub hdr: crate::fanotify_event_info_header,
403        pub pidfd: crate::__s32,
404    }
405
406    pub struct fanotify_event_info_error {
407        pub hdr: crate::fanotify_event_info_header,
408        pub error: crate::__s32,
409        pub error_count: crate::__u32,
410    }
411
412    // FIXME(1.0) this is actually a union
413    #[cfg_attr(target_pointer_width = "32", repr(align(4)))]
414    #[cfg_attr(target_pointer_width = "64", repr(align(8)))]
415    pub struct sem_t {
416        #[cfg(target_pointer_width = "32")]
417        __size: [c_char; 16],
418        #[cfg(target_pointer_width = "64")]
419        __size: [c_char; 32],
420    }
421
422    pub struct mbstate_t {
423        __count: c_int,
424        __wchb: [c_char; 4],
425    }
426
427    pub struct fpos64_t {
428        __pos: off64_t,
429        __state: crate::mbstate_t,
430    }
431
432    pub struct fpos_t {
433        #[cfg(not(gnu_file_offset_bits64))]
434        __pos: off_t,
435        #[cfg(gnu_file_offset_bits64)]
436        __pos: off64_t,
437        __state: crate::mbstate_t,
438    }
439}
440
441impl siginfo_t {
442    pub unsafe fn si_addr(&self) -> *mut c_void {
443        #[repr(C)]
444        struct siginfo_sigfault {
445            _si_signo: c_int,
446            _si_errno: c_int,
447            _si_code: c_int,
448            si_addr: *mut c_void,
449        }
450        (*(self as *const siginfo_t as *const siginfo_sigfault)).si_addr
451    }
452
453    pub unsafe fn si_value(&self) -> crate::sigval {
454        #[repr(C)]
455        struct siginfo_timer {
456            _si_signo: c_int,
457            _si_errno: c_int,
458            _si_code: c_int,
459            _si_tid: c_int,
460            _si_overrun: c_int,
461            si_sigval: crate::sigval,
462        }
463        (*(self as *const siginfo_t as *const siginfo_timer)).si_sigval
464    }
465}
466
467// Internal, for casts to access union fields
468#[repr(C)]
469struct sifields_sigchld {
470    si_pid: crate::pid_t,
471    si_uid: crate::uid_t,
472    si_status: c_int,
473    si_utime: c_long,
474    si_stime: c_long,
475}
476impl Copy for sifields_sigchld {}
477impl Clone for sifields_sigchld {
478    fn clone(&self) -> sifields_sigchld {
479        *self
480    }
481}
482
483// Internal, for casts to access union fields
484#[repr(C)]
485union sifields {
486    _align_pointer: *mut c_void,
487    sigchld: sifields_sigchld,
488}
489
490// Internal, for casts to access union fields. Note that some variants
491// of sifields start with a pointer, which makes the alignment of
492// sifields vary on 32-bit and 64-bit architectures.
493#[repr(C)]
494struct siginfo_f {
495    _siginfo_base: [c_int; 3],
496    sifields: sifields,
497}
498
499impl siginfo_t {
500    unsafe fn sifields(&self) -> &sifields {
501        &(*(self as *const siginfo_t as *const siginfo_f)).sifields
502    }
503
504    pub unsafe fn si_pid(&self) -> crate::pid_t {
505        self.sifields().sigchld.si_pid
506    }
507
508    pub unsafe fn si_uid(&self) -> crate::uid_t {
509        self.sifields().sigchld.si_uid
510    }
511
512    pub unsafe fn si_status(&self) -> c_int {
513        self.sifields().sigchld.si_status
514    }
515
516    pub unsafe fn si_utime(&self) -> c_long {
517        self.sifields().sigchld.si_utime
518    }
519
520    pub unsafe fn si_stime(&self) -> c_long {
521        self.sifields().sigchld.si_stime
522    }
523}
524
525pub union __c_anonymous_ptrace_syscall_info_data {
526    pub entry: __c_anonymous_ptrace_syscall_info_entry,
527    pub exit: __c_anonymous_ptrace_syscall_info_exit,
528    pub seccomp: __c_anonymous_ptrace_syscall_info_seccomp,
529}
530impl Copy for __c_anonymous_ptrace_syscall_info_data {}
531impl Clone for __c_anonymous_ptrace_syscall_info_data {
532    fn clone(&self) -> __c_anonymous_ptrace_syscall_info_data {
533        *self
534    }
535}
536
537s_no_extra_traits! {
538    pub struct utmpx {
539        pub ut_type: c_short,
540        pub ut_pid: crate::pid_t,
541        pub ut_line: [c_char; __UT_LINESIZE],
542        pub ut_id: [c_char; 4],
543
544        pub ut_user: [c_char; __UT_NAMESIZE],
545        pub ut_host: [c_char; __UT_HOSTSIZE],
546        pub ut_exit: __exit_status,
547
548        #[cfg(any(
549            target_arch = "aarch64",
550            target_arch = "s390x",
551            target_arch = "loongarch64",
552            all(target_pointer_width = "32", not(target_arch = "x86_64"))
553        ))]
554        pub ut_session: c_long,
555        #[cfg(any(
556            target_arch = "aarch64",
557            target_arch = "s390x",
558            target_arch = "loongarch64",
559            all(target_pointer_width = "32", not(target_arch = "x86_64"))
560        ))]
561        pub ut_tv: crate::timeval,
562
563        #[cfg(not(any(
564            target_arch = "aarch64",
565            target_arch = "s390x",
566            target_arch = "loongarch64",
567            all(target_pointer_width = "32", not(target_arch = "x86_64"))
568        )))]
569        pub ut_session: i32,
570        #[cfg(not(any(
571            target_arch = "aarch64",
572            target_arch = "s390x",
573            target_arch = "loongarch64",
574            all(target_pointer_width = "32", not(target_arch = "x86_64"))
575        )))]
576        pub ut_tv: __timeval,
577
578        pub ut_addr_v6: [i32; 4],
579        __glibc_reserved: [c_char; 20],
580    }
581}
582
583cfg_if! {
584    if #[cfg(feature = "extra_traits")] {
585        impl PartialEq for utmpx {
586            fn eq(&self, other: &utmpx) -> bool {
587                self.ut_type == other.ut_type
588                    && self.ut_pid == other.ut_pid
589                    && self.ut_line == other.ut_line
590                    && self.ut_id == other.ut_id
591                    && self.ut_user == other.ut_user
592                    && self
593                        .ut_host
594                        .iter()
595                        .zip(other.ut_host.iter())
596                        .all(|(a, b)| a == b)
597                    && self.ut_exit == other.ut_exit
598                    && self.ut_session == other.ut_session
599                    && self.ut_tv == other.ut_tv
600                    && self.ut_addr_v6 == other.ut_addr_v6
601                    && self.__glibc_reserved == other.__glibc_reserved
602            }
603        }
604
605        impl Eq for utmpx {}
606
607        impl fmt::Debug for utmpx {
608            fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
609                f.debug_struct("utmpx")
610                    .field("ut_type", &self.ut_type)
611                    .field("ut_pid", &self.ut_pid)
612                    .field("ut_line", &self.ut_line)
613                    .field("ut_id", &self.ut_id)
614                    .field("ut_user", &self.ut_user)
615                    // FIXME(debug): .field("ut_host", &self.ut_host)
616                    .field("ut_exit", &self.ut_exit)
617                    .field("ut_session", &self.ut_session)
618                    .field("ut_tv", &self.ut_tv)
619                    .field("ut_addr_v6", &self.ut_addr_v6)
620                    .field("__glibc_reserved", &self.__glibc_reserved)
621                    .finish()
622            }
623        }
624
625        impl hash::Hash for utmpx {
626            fn hash<H: hash::Hasher>(&self, state: &mut H) {
627                self.ut_type.hash(state);
628                self.ut_pid.hash(state);
629                self.ut_line.hash(state);
630                self.ut_id.hash(state);
631                self.ut_user.hash(state);
632                self.ut_host.hash(state);
633                self.ut_exit.hash(state);
634                self.ut_session.hash(state);
635                self.ut_tv.hash(state);
636                self.ut_addr_v6.hash(state);
637                self.__glibc_reserved.hash(state);
638            }
639        }
640
641        impl PartialEq for __c_anonymous_ptrace_syscall_info_data {
642            fn eq(&self, other: &__c_anonymous_ptrace_syscall_info_data) -> bool {
643                unsafe {
644                    self.entry == other.entry
645                        || self.exit == other.exit
646                        || self.seccomp == other.seccomp
647                }
648            }
649        }
650
651        impl Eq for __c_anonymous_ptrace_syscall_info_data {}
652
653        impl fmt::Debug for __c_anonymous_ptrace_syscall_info_data {
654            fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
655                unsafe {
656                    f.debug_struct("__c_anonymous_ptrace_syscall_info_data")
657                        .field("entry", &self.entry)
658                        .field("exit", &self.exit)
659                        .field("seccomp", &self.seccomp)
660                        .finish()
661                }
662            }
663        }
664
665        impl hash::Hash for __c_anonymous_ptrace_syscall_info_data {
666            fn hash<H: hash::Hasher>(&self, state: &mut H) {
667                unsafe {
668                    self.entry.hash(state);
669                    self.exit.hash(state);
670                    self.seccomp.hash(state);
671                }
672            }
673        }
674    }
675}
676
677// include/uapi/asm-generic/hugetlb_encode.h
678pub const HUGETLB_FLAG_ENCODE_SHIFT: c_int = 26;
679pub const HUGETLB_FLAG_ENCODE_MASK: c_int = 0x3f;
680
681pub const HUGETLB_FLAG_ENCODE_64KB: c_int = 16 << HUGETLB_FLAG_ENCODE_SHIFT;
682pub const HUGETLB_FLAG_ENCODE_512KB: c_int = 19 << HUGETLB_FLAG_ENCODE_SHIFT;
683pub const HUGETLB_FLAG_ENCODE_1MB: c_int = 20 << HUGETLB_FLAG_ENCODE_SHIFT;
684pub const HUGETLB_FLAG_ENCODE_2MB: c_int = 21 << HUGETLB_FLAG_ENCODE_SHIFT;
685pub const HUGETLB_FLAG_ENCODE_8MB: c_int = 23 << HUGETLB_FLAG_ENCODE_SHIFT;
686pub const HUGETLB_FLAG_ENCODE_16MB: c_int = 24 << HUGETLB_FLAG_ENCODE_SHIFT;
687pub const HUGETLB_FLAG_ENCODE_32MB: c_int = 25 << HUGETLB_FLAG_ENCODE_SHIFT;
688pub const HUGETLB_FLAG_ENCODE_256MB: c_int = 28 << HUGETLB_FLAG_ENCODE_SHIFT;
689pub const HUGETLB_FLAG_ENCODE_512MB: c_int = 29 << HUGETLB_FLAG_ENCODE_SHIFT;
690pub const HUGETLB_FLAG_ENCODE_1GB: c_int = 30 << HUGETLB_FLAG_ENCODE_SHIFT;
691pub const HUGETLB_FLAG_ENCODE_2GB: c_int = 31 << HUGETLB_FLAG_ENCODE_SHIFT;
692pub const HUGETLB_FLAG_ENCODE_16GB: c_int = 34 << HUGETLB_FLAG_ENCODE_SHIFT;
693
694// include/uapi/linux/mman.h
695/*
696 * Huge page size encoding when MAP_HUGETLB is specified, and a huge page
697 * size other than the default is desired.  See hugetlb_encode.h.
698 * All known huge page size encodings are provided here.  It is the
699 * responsibility of the application to know which sizes are supported on
700 * the running system.  See mmap(2) man page for details.
701 */
702pub const MAP_HUGE_SHIFT: c_int = HUGETLB_FLAG_ENCODE_SHIFT;
703pub const MAP_HUGE_MASK: c_int = HUGETLB_FLAG_ENCODE_MASK;
704
705pub const MAP_HUGE_64KB: c_int = HUGETLB_FLAG_ENCODE_64KB;
706pub const MAP_HUGE_512KB: c_int = HUGETLB_FLAG_ENCODE_512KB;
707pub const MAP_HUGE_1MB: c_int = HUGETLB_FLAG_ENCODE_1MB;
708pub const MAP_HUGE_2MB: c_int = HUGETLB_FLAG_ENCODE_2MB;
709pub const MAP_HUGE_8MB: c_int = HUGETLB_FLAG_ENCODE_8MB;
710pub const MAP_HUGE_16MB: c_int = HUGETLB_FLAG_ENCODE_16MB;
711pub const MAP_HUGE_32MB: c_int = HUGETLB_FLAG_ENCODE_32MB;
712pub const MAP_HUGE_256MB: c_int = HUGETLB_FLAG_ENCODE_256MB;
713pub const MAP_HUGE_512MB: c_int = HUGETLB_FLAG_ENCODE_512MB;
714pub const MAP_HUGE_1GB: c_int = HUGETLB_FLAG_ENCODE_1GB;
715pub const MAP_HUGE_2GB: c_int = HUGETLB_FLAG_ENCODE_2GB;
716pub const MAP_HUGE_16GB: c_int = HUGETLB_FLAG_ENCODE_16GB;
717
718pub const PRIO_PROCESS: crate::__priority_which_t = 0;
719pub const PRIO_PGRP: crate::__priority_which_t = 1;
720pub const PRIO_USER: crate::__priority_which_t = 2;
721
722pub const MS_RMT_MASK: c_ulong = 0x02800051;
723
724pub const __UT_LINESIZE: usize = 32;
725pub const __UT_NAMESIZE: usize = 32;
726pub const __UT_HOSTSIZE: usize = 256;
727pub const EMPTY: c_short = 0;
728pub const RUN_LVL: c_short = 1;
729pub const BOOT_TIME: c_short = 2;
730pub const NEW_TIME: c_short = 3;
731pub const OLD_TIME: c_short = 4;
732pub const INIT_PROCESS: c_short = 5;
733pub const LOGIN_PROCESS: c_short = 6;
734pub const USER_PROCESS: c_short = 7;
735pub const DEAD_PROCESS: c_short = 8;
736pub const ACCOUNTING: c_short = 9;
737
738// dlfcn.h
739pub const LM_ID_BASE: c_long = 0;
740pub const LM_ID_NEWLM: c_long = -1;
741
742pub const RTLD_DI_LMID: c_int = 1;
743pub const RTLD_DI_LINKMAP: c_int = 2;
744pub const RTLD_DI_CONFIGADDR: c_int = 3;
745pub const RTLD_DI_SERINFO: c_int = 4;
746pub const RTLD_DI_SERINFOSIZE: c_int = 5;
747pub const RTLD_DI_ORIGIN: c_int = 6;
748pub const RTLD_DI_PROFILENAME: c_int = 7;
749pub const RTLD_DI_PROFILEOUT: c_int = 8;
750pub const RTLD_DI_TLS_MODID: c_int = 9;
751pub const RTLD_DI_TLS_DATA: c_int = 10;
752
753pub const SOCK_NONBLOCK: c_int = O_NONBLOCK;
754pub const PIDFD_NONBLOCK: c_uint = O_NONBLOCK as c_uint;
755
756pub const SOL_RXRPC: c_int = 272;
757pub const SOL_PPPOL2TP: c_int = 273;
758pub const SOL_PNPIPE: c_int = 275;
759pub const SOL_RDS: c_int = 276;
760pub const SOL_IUCV: c_int = 277;
761pub const SOL_CAIF: c_int = 278;
762pub const SOL_NFC: c_int = 280;
763
764pub const MSG_TRYHARD: c_int = 4;
765
766pub const LC_PAPER: c_int = 7;
767pub const LC_NAME: c_int = 8;
768pub const LC_ADDRESS: c_int = 9;
769pub const LC_TELEPHONE: c_int = 10;
770pub const LC_MEASUREMENT: c_int = 11;
771pub const LC_IDENTIFICATION: c_int = 12;
772pub const LC_PAPER_MASK: c_int = 1 << LC_PAPER;
773pub const LC_NAME_MASK: c_int = 1 << LC_NAME;
774pub const LC_ADDRESS_MASK: c_int = 1 << LC_ADDRESS;
775pub const LC_TELEPHONE_MASK: c_int = 1 << LC_TELEPHONE;
776pub const LC_MEASUREMENT_MASK: c_int = 1 << LC_MEASUREMENT;
777pub const LC_IDENTIFICATION_MASK: c_int = 1 << LC_IDENTIFICATION;
778pub const LC_ALL_MASK: c_int = crate::LC_CTYPE_MASK
779    | crate::LC_NUMERIC_MASK
780    | crate::LC_TIME_MASK
781    | crate::LC_COLLATE_MASK
782    | crate::LC_MONETARY_MASK
783    | crate::LC_MESSAGES_MASK
784    | LC_PAPER_MASK
785    | LC_NAME_MASK
786    | LC_ADDRESS_MASK
787    | LC_TELEPHONE_MASK
788    | LC_MEASUREMENT_MASK
789    | LC_IDENTIFICATION_MASK;
790
791pub const ENOTSUP: c_int = EOPNOTSUPP;
792
793pub const SOCK_SEQPACKET: c_int = 5;
794pub const SOCK_DCCP: c_int = 6;
795#[deprecated(since = "0.2.70", note = "AF_PACKET must be used instead")]
796pub const SOCK_PACKET: c_int = 10;
797
798pub const AF_IB: c_int = 27;
799pub const AF_MPLS: c_int = 28;
800pub const AF_NFC: c_int = 39;
801pub const AF_VSOCK: c_int = 40;
802pub const AF_XDP: c_int = 44;
803pub const PF_IB: c_int = AF_IB;
804pub const PF_MPLS: c_int = AF_MPLS;
805pub const PF_NFC: c_int = AF_NFC;
806pub const PF_VSOCK: c_int = AF_VSOCK;
807pub const PF_XDP: c_int = AF_XDP;
808
809pub const SIGEV_THREAD_ID: c_int = 4;
810
811pub const BUFSIZ: c_uint = 8192;
812pub const TMP_MAX: c_uint = 238328;
813pub const FOPEN_MAX: c_uint = 16;
814pub const FILENAME_MAX: c_uint = 4096;
815pub const POSIX_MADV_DONTNEED: c_int = 4;
816pub const _CS_GNU_LIBC_VERSION: c_int = 2;
817pub const _CS_GNU_LIBPTHREAD_VERSION: c_int = 3;
818pub const _CS_V6_ENV: c_int = 1148;
819pub const _CS_V7_ENV: c_int = 1149;
820pub const _SC_EQUIV_CLASS_MAX: c_int = 41;
821pub const _SC_CHARCLASS_NAME_MAX: c_int = 45;
822pub const _SC_PII: c_int = 53;
823pub const _SC_PII_XTI: c_int = 54;
824pub const _SC_PII_SOCKET: c_int = 55;
825pub const _SC_PII_INTERNET: c_int = 56;
826pub const _SC_PII_OSI: c_int = 57;
827pub const _SC_POLL: c_int = 58;
828pub const _SC_SELECT: c_int = 59;
829pub const _SC_PII_INTERNET_STREAM: c_int = 61;
830pub const _SC_PII_INTERNET_DGRAM: c_int = 62;
831pub const _SC_PII_OSI_COTS: c_int = 63;
832pub const _SC_PII_OSI_CLTS: c_int = 64;
833pub const _SC_PII_OSI_M: c_int = 65;
834pub const _SC_T_IOV_MAX: c_int = 66;
835pub const _SC_2_C_VERSION: c_int = 96;
836pub const _SC_CHAR_BIT: c_int = 101;
837pub const _SC_CHAR_MAX: c_int = 102;
838pub const _SC_CHAR_MIN: c_int = 103;
839pub const _SC_INT_MAX: c_int = 104;
840pub const _SC_INT_MIN: c_int = 105;
841pub const _SC_LONG_BIT: c_int = 106;
842pub const _SC_WORD_BIT: c_int = 107;
843pub const _SC_MB_LEN_MAX: c_int = 108;
844pub const _SC_SSIZE_MAX: c_int = 110;
845pub const _SC_SCHAR_MAX: c_int = 111;
846pub const _SC_SCHAR_MIN: c_int = 112;
847pub const _SC_SHRT_MAX: c_int = 113;
848pub const _SC_SHRT_MIN: c_int = 114;
849pub const _SC_UCHAR_MAX: c_int = 115;
850pub const _SC_UINT_MAX: c_int = 116;
851pub const _SC_ULONG_MAX: c_int = 117;
852pub const _SC_USHRT_MAX: c_int = 118;
853pub const _SC_NL_ARGMAX: c_int = 119;
854pub const _SC_NL_LANGMAX: c_int = 120;
855pub const _SC_NL_MSGMAX: c_int = 121;
856pub const _SC_NL_NMAX: c_int = 122;
857pub const _SC_NL_SETMAX: c_int = 123;
858pub const _SC_NL_TEXTMAX: c_int = 124;
859pub const _SC_BASE: c_int = 134;
860pub const _SC_C_LANG_SUPPORT: c_int = 135;
861pub const _SC_C_LANG_SUPPORT_R: c_int = 136;
862pub const _SC_DEVICE_IO: c_int = 140;
863pub const _SC_DEVICE_SPECIFIC: c_int = 141;
864pub const _SC_DEVICE_SPECIFIC_R: c_int = 142;
865pub const _SC_FD_MGMT: c_int = 143;
866pub const _SC_FIFO: c_int = 144;
867pub const _SC_PIPE: c_int = 145;
868pub const _SC_FILE_ATTRIBUTES: c_int = 146;
869pub const _SC_FILE_LOCKING: c_int = 147;
870pub const _SC_FILE_SYSTEM: c_int = 148;
871pub const _SC_MULTI_PROCESS: c_int = 150;
872pub const _SC_SINGLE_PROCESS: c_int = 151;
873pub const _SC_NETWORKING: c_int = 152;
874pub const _SC_REGEX_VERSION: c_int = 156;
875pub const _SC_SIGNALS: c_int = 158;
876pub const _SC_SYSTEM_DATABASE: c_int = 162;
877pub const _SC_SYSTEM_DATABASE_R: c_int = 163;
878pub const _SC_USER_GROUPS: c_int = 166;
879pub const _SC_USER_GROUPS_R: c_int = 167;
880pub const _SC_LEVEL1_ICACHE_SIZE: c_int = 185;
881pub const _SC_LEVEL1_ICACHE_ASSOC: c_int = 186;
882pub const _SC_LEVEL1_ICACHE_LINESIZE: c_int = 187;
883pub const _SC_LEVEL1_DCACHE_SIZE: c_int = 188;
884pub const _SC_LEVEL1_DCACHE_ASSOC: c_int = 189;
885pub const _SC_LEVEL1_DCACHE_LINESIZE: c_int = 190;
886pub const _SC_LEVEL2_CACHE_SIZE: c_int = 191;
887pub const _SC_LEVEL2_CACHE_ASSOC: c_int = 192;
888pub const _SC_LEVEL2_CACHE_LINESIZE: c_int = 193;
889pub const _SC_LEVEL3_CACHE_SIZE: c_int = 194;
890pub const _SC_LEVEL3_CACHE_ASSOC: c_int = 195;
891pub const _SC_LEVEL3_CACHE_LINESIZE: c_int = 196;
892pub const _SC_LEVEL4_CACHE_SIZE: c_int = 197;
893pub const _SC_LEVEL4_CACHE_ASSOC: c_int = 198;
894pub const _SC_LEVEL4_CACHE_LINESIZE: c_int = 199;
895pub const O_ACCMODE: c_int = 3;
896pub const ST_RELATIME: c_ulong = 4096;
897pub const NI_MAXHOST: crate::socklen_t = 1025;
898
899// Most `*_SUPER_MAGIC` constants are defined at the `linux_like` level; the
900// following are only available on newer Linux versions than the versions
901// currently used in CI in some configurations, so we define them here.
902cfg_if! {
903    if #[cfg(not(target_arch = "s390x"))] {
904        pub const BINDERFS_SUPER_MAGIC: c_long = 0x6c6f6f70;
905        pub const XFS_SUPER_MAGIC: c_long = 0x58465342;
906    } else if #[cfg(target_arch = "s390x")] {
907        pub const BINDERFS_SUPER_MAGIC: c_uint = 0x6c6f6f70;
908        pub const XFS_SUPER_MAGIC: c_uint = 0x58465342;
909    }
910}
911
912pub const CPU_SETSIZE: c_int = 0x400;
913
914pub const PTRACE_TRACEME: c_uint = 0;
915pub const PTRACE_PEEKTEXT: c_uint = 1;
916pub const PTRACE_PEEKDATA: c_uint = 2;
917pub const PTRACE_PEEKUSER: c_uint = 3;
918pub const PTRACE_POKETEXT: c_uint = 4;
919pub const PTRACE_POKEDATA: c_uint = 5;
920pub const PTRACE_POKEUSER: c_uint = 6;
921pub const PTRACE_CONT: c_uint = 7;
922pub const PTRACE_KILL: c_uint = 8;
923pub const PTRACE_SINGLESTEP: c_uint = 9;
924pub const PTRACE_ATTACH: c_uint = 16;
925pub const PTRACE_SYSCALL: c_uint = 24;
926pub const PTRACE_SETOPTIONS: c_uint = 0x4200;
927pub const PTRACE_GETEVENTMSG: c_uint = 0x4201;
928pub const PTRACE_GETSIGINFO: c_uint = 0x4202;
929pub const PTRACE_SETSIGINFO: c_uint = 0x4203;
930pub const PTRACE_GETREGSET: c_uint = 0x4204;
931pub const PTRACE_SETREGSET: c_uint = 0x4205;
932pub const PTRACE_SEIZE: c_uint = 0x4206;
933pub const PTRACE_INTERRUPT: c_uint = 0x4207;
934pub const PTRACE_LISTEN: c_uint = 0x4208;
935pub const PTRACE_PEEKSIGINFO: c_uint = 0x4209;
936pub const PTRACE_GETSIGMASK: c_uint = 0x420a;
937pub const PTRACE_SETSIGMASK: c_uint = 0x420b;
938pub const PTRACE_GET_SYSCALL_INFO: c_uint = 0x420e;
939pub const PTRACE_SYSCALL_INFO_NONE: crate::__u8 = 0;
940pub const PTRACE_SYSCALL_INFO_ENTRY: crate::__u8 = 1;
941pub const PTRACE_SYSCALL_INFO_EXIT: crate::__u8 = 2;
942pub const PTRACE_SYSCALL_INFO_SECCOMP: crate::__u8 = 3;
943pub const PTRACE_SET_SYSCALL_USER_DISPATCH_CONFIG: crate::__u8 = 0x4210;
944pub const PTRACE_GET_SYSCALL_USER_DISPATCH_CONFIG: crate::__u8 = 0x4211;
945
946// linux/fs.h
947
948// Flags for preadv2/pwritev2
949pub const RWF_HIPRI: c_int = 0x00000001;
950pub const RWF_DSYNC: c_int = 0x00000002;
951pub const RWF_SYNC: c_int = 0x00000004;
952pub const RWF_NOWAIT: c_int = 0x00000008;
953pub const RWF_APPEND: c_int = 0x00000010;
954
955// linux/rtnetlink.h
956pub const TCA_PAD: c_ushort = 9;
957pub const TCA_DUMP_INVISIBLE: c_ushort = 10;
958pub const TCA_CHAIN: c_ushort = 11;
959pub const TCA_HW_OFFLOAD: c_ushort = 12;
960
961pub const RTM_DELNETCONF: u16 = 81;
962pub const RTM_NEWSTATS: u16 = 92;
963pub const RTM_GETSTATS: u16 = 94;
964pub const RTM_NEWCACHEREPORT: u16 = 96;
965
966pub const RTM_F_LOOKUP_TABLE: c_uint = 0x1000;
967pub const RTM_F_FIB_MATCH: c_uint = 0x2000;
968
969pub const RTA_VIA: c_ushort = 18;
970pub const RTA_NEWDST: c_ushort = 19;
971pub const RTA_PREF: c_ushort = 20;
972pub const RTA_ENCAP_TYPE: c_ushort = 21;
973pub const RTA_ENCAP: c_ushort = 22;
974pub const RTA_EXPIRES: c_ushort = 23;
975pub const RTA_PAD: c_ushort = 24;
976pub const RTA_UID: c_ushort = 25;
977pub const RTA_TTL_PROPAGATE: c_ushort = 26;
978
979// linux/neighbor.h
980pub const NTF_EXT_LEARNED: u8 = 0x10;
981pub const NTF_OFFLOADED: u8 = 0x20;
982
983pub const NDA_MASTER: c_ushort = 9;
984pub const NDA_LINK_NETNSID: c_ushort = 10;
985pub const NDA_SRC_VNI: c_ushort = 11;
986
987// linux/personality.h
988pub const UNAME26: c_int = 0x0020000;
989pub const FDPIC_FUNCPTRS: c_int = 0x0080000;
990
991pub const MAX_LINKS: c_int = 32;
992
993pub const GENL_UNS_ADMIN_PERM: c_int = 0x10;
994
995pub const GENL_ID_VFS_DQUOT: c_int = crate::NLMSG_MIN_TYPE + 1;
996pub const GENL_ID_PMCRAID: c_int = crate::NLMSG_MIN_TYPE + 2;
997
998pub const ELFOSABI_ARM_AEABI: u8 = 64;
999
1000// linux/sched.h
1001pub const CLONE_NEWTIME: c_int = 0x80;
1002// DIFF(main): changed to `c_ulonglong` in e9abac9ac2
1003pub const CLONE_CLEAR_SIGHAND: c_int = 0x100000000;
1004pub const CLONE_INTO_CGROUP: c_int = 0x200000000;
1005
1006// linux/keyctl.h
1007pub const KEYCTL_DH_COMPUTE: u32 = 23;
1008pub const KEYCTL_PKEY_QUERY: u32 = 24;
1009pub const KEYCTL_PKEY_ENCRYPT: u32 = 25;
1010pub const KEYCTL_PKEY_DECRYPT: u32 = 26;
1011pub const KEYCTL_PKEY_SIGN: u32 = 27;
1012pub const KEYCTL_PKEY_VERIFY: u32 = 28;
1013pub const KEYCTL_RESTRICT_KEYRING: u32 = 29;
1014
1015pub const KEYCTL_SUPPORTS_ENCRYPT: u32 = 0x01;
1016pub const KEYCTL_SUPPORTS_DECRYPT: u32 = 0x02;
1017pub const KEYCTL_SUPPORTS_SIGN: u32 = 0x04;
1018pub const KEYCTL_SUPPORTS_VERIFY: u32 = 0x08;
1019cfg_if! {
1020    if #[cfg(not(any(
1021        target_arch = "mips",
1022        target_arch = "mips32r6",
1023        target_arch = "mips64",
1024        target_arch = "mips64r6"
1025    )))] {
1026        pub const KEYCTL_MOVE: u32 = 30;
1027        pub const KEYCTL_CAPABILITIES: u32 = 31;
1028
1029        pub const KEYCTL_CAPS0_CAPABILITIES: u32 = 0x01;
1030        pub const KEYCTL_CAPS0_PERSISTENT_KEYRINGS: u32 = 0x02;
1031        pub const KEYCTL_CAPS0_DIFFIE_HELLMAN: u32 = 0x04;
1032        pub const KEYCTL_CAPS0_PUBLIC_KEY: u32 = 0x08;
1033        pub const KEYCTL_CAPS0_BIG_KEY: u32 = 0x10;
1034        pub const KEYCTL_CAPS0_INVALIDATE: u32 = 0x20;
1035        pub const KEYCTL_CAPS0_RESTRICT_KEYRING: u32 = 0x40;
1036        pub const KEYCTL_CAPS0_MOVE: u32 = 0x80;
1037        pub const KEYCTL_CAPS1_NS_KEYRING_NAME: u32 = 0x01;
1038        pub const KEYCTL_CAPS1_NS_KEY_TAG: u32 = 0x02;
1039    }
1040}
1041
1042pub const M_MXFAST: c_int = 1;
1043pub const M_NLBLKS: c_int = 2;
1044pub const M_GRAIN: c_int = 3;
1045pub const M_KEEP: c_int = 4;
1046pub const M_TRIM_THRESHOLD: c_int = -1;
1047pub const M_TOP_PAD: c_int = -2;
1048pub const M_MMAP_THRESHOLD: c_int = -3;
1049pub const M_MMAP_MAX: c_int = -4;
1050pub const M_CHECK_ACTION: c_int = -5;
1051pub const M_PERTURB: c_int = -6;
1052pub const M_ARENA_TEST: c_int = -7;
1053pub const M_ARENA_MAX: c_int = -8;
1054
1055pub const SOMAXCONN: c_int = 4096;
1056
1057// linux/mount.h
1058pub const MOVE_MOUNT_F_SYMLINKS: c_uint = 0x00000001;
1059pub const MOVE_MOUNT_F_AUTOMOUNTS: c_uint = 0x00000002;
1060pub const MOVE_MOUNT_F_EMPTY_PATH: c_uint = 0x00000004;
1061pub const MOVE_MOUNT_T_SYMLINKS: c_uint = 0x00000010;
1062pub const MOVE_MOUNT_T_AUTOMOUNTS: c_uint = 0x00000020;
1063pub const MOVE_MOUNT_T_EMPTY_PATH: c_uint = 0x00000040;
1064pub const MOVE_MOUNT_SET_GROUP: c_uint = 0x00000100;
1065pub const MOVE_MOUNT_BENEATH: c_uint = 0x00000200;
1066
1067// sys/timex.h
1068pub const ADJ_OFFSET: c_uint = 0x0001;
1069pub const ADJ_FREQUENCY: c_uint = 0x0002;
1070pub const ADJ_MAXERROR: c_uint = 0x0004;
1071pub const ADJ_ESTERROR: c_uint = 0x0008;
1072pub const ADJ_STATUS: c_uint = 0x0010;
1073pub const ADJ_TIMECONST: c_uint = 0x0020;
1074pub const ADJ_TAI: c_uint = 0x0080;
1075pub const ADJ_SETOFFSET: c_uint = 0x0100;
1076pub const ADJ_MICRO: c_uint = 0x1000;
1077pub const ADJ_NANO: c_uint = 0x2000;
1078pub const ADJ_TICK: c_uint = 0x4000;
1079pub const ADJ_OFFSET_SINGLESHOT: c_uint = 0x8001;
1080pub const ADJ_OFFSET_SS_READ: c_uint = 0xa001;
1081pub const MOD_OFFSET: c_uint = ADJ_OFFSET;
1082pub const MOD_FREQUENCY: c_uint = ADJ_FREQUENCY;
1083pub const MOD_MAXERROR: c_uint = ADJ_MAXERROR;
1084pub const MOD_ESTERROR: c_uint = ADJ_ESTERROR;
1085pub const MOD_STATUS: c_uint = ADJ_STATUS;
1086pub const MOD_TIMECONST: c_uint = ADJ_TIMECONST;
1087pub const MOD_CLKB: c_uint = ADJ_TICK;
1088pub const MOD_CLKA: c_uint = ADJ_OFFSET_SINGLESHOT;
1089pub const MOD_TAI: c_uint = ADJ_TAI;
1090pub const MOD_MICRO: c_uint = ADJ_MICRO;
1091pub const MOD_NANO: c_uint = ADJ_NANO;
1092pub const STA_PLL: c_int = 0x0001;
1093pub const STA_PPSFREQ: c_int = 0x0002;
1094pub const STA_PPSTIME: c_int = 0x0004;
1095pub const STA_FLL: c_int = 0x0008;
1096pub const STA_INS: c_int = 0x0010;
1097pub const STA_DEL: c_int = 0x0020;
1098pub const STA_UNSYNC: c_int = 0x0040;
1099pub const STA_FREQHOLD: c_int = 0x0080;
1100pub const STA_PPSSIGNAL: c_int = 0x0100;
1101pub const STA_PPSJITTER: c_int = 0x0200;
1102pub const STA_PPSWANDER: c_int = 0x0400;
1103pub const STA_PPSERROR: c_int = 0x0800;
1104pub const STA_CLOCKERR: c_int = 0x1000;
1105pub const STA_NANO: c_int = 0x2000;
1106pub const STA_MODE: c_int = 0x4000;
1107pub const STA_CLK: c_int = 0x8000;
1108pub const STA_RONLY: c_int = STA_PPSSIGNAL
1109    | STA_PPSJITTER
1110    | STA_PPSWANDER
1111    | STA_PPSERROR
1112    | STA_CLOCKERR
1113    | STA_NANO
1114    | STA_MODE
1115    | STA_CLK;
1116pub const NTP_API: c_int = 4;
1117pub const TIME_OK: c_int = 0;
1118pub const TIME_INS: c_int = 1;
1119pub const TIME_DEL: c_int = 2;
1120pub const TIME_OOP: c_int = 3;
1121pub const TIME_WAIT: c_int = 4;
1122pub const TIME_ERROR: c_int = 5;
1123pub const TIME_BAD: c_int = TIME_ERROR;
1124pub const MAXTC: c_long = 6;
1125
1126// Portable GLOB_* flags are defined at the `linux_like` level.
1127// The following are GNU extensions.
1128pub const GLOB_PERIOD: c_int = 1 << 7;
1129pub const GLOB_ALTDIRFUNC: c_int = 1 << 9;
1130pub const GLOB_BRACE: c_int = 1 << 10;
1131pub const GLOB_NOMAGIC: c_int = 1 << 11;
1132pub const GLOB_TILDE: c_int = 1 << 12;
1133pub const GLOB_ONLYDIR: c_int = 1 << 13;
1134pub const GLOB_TILDE_CHECK: c_int = 1 << 14;
1135
1136pub const MADV_COLLAPSE: c_int = 25;
1137
1138cfg_if! {
1139    if #[cfg(any(
1140        target_arch = "arm",
1141        target_arch = "x86",
1142        target_arch = "x86_64",
1143        target_arch = "s390x",
1144        target_arch = "riscv64",
1145        target_arch = "riscv32"
1146    ))] {
1147        pub const PTHREAD_STACK_MIN: size_t = 16384;
1148    } else if #[cfg(any(target_arch = "sparc", target_arch = "sparc64"))] {
1149        pub const PTHREAD_STACK_MIN: size_t = 0x6000;
1150    } else {
1151        pub const PTHREAD_STACK_MIN: size_t = 131072;
1152    }
1153}
1154pub const PTHREAD_MUTEX_ADAPTIVE_NP: c_int = 3;
1155
1156pub const REG_STARTEND: c_int = 4;
1157
1158pub const REG_EEND: c_int = 14;
1159pub const REG_ESIZE: c_int = 15;
1160pub const REG_ERPAREN: c_int = 16;
1161
1162cfg_if! {
1163    if #[cfg(any(
1164        target_arch = "x86",
1165        target_arch = "x86_64",
1166        target_arch = "arm",
1167        target_arch = "aarch64",
1168        target_arch = "loongarch64",
1169        target_arch = "riscv64",
1170        target_arch = "s390x"
1171    ))] {
1172        pub const TUNSETCARRIER: Ioctl = 0x400454e2;
1173        pub const TUNGETDEVNETNS: Ioctl = 0x54e3;
1174    } else if #[cfg(any(
1175        target_arch = "mips",
1176        target_arch = "mips64",
1177        target_arch = "powerpc",
1178        target_arch = "powerpc64",
1179        target_arch = "sparc",
1180        target_arch = "sparc64"
1181    ))] {
1182        pub const TUNSETCARRIER: Ioctl = 0x800454e2;
1183        pub const TUNGETDEVNETNS: Ioctl = 0x200054e3;
1184    } else {
1185        // Unknown target_arch
1186    }
1187}
1188
1189extern "C" {
1190    pub fn fgetspent_r(
1191        fp: *mut crate::FILE,
1192        spbuf: *mut crate::spwd,
1193        buf: *mut c_char,
1194        buflen: size_t,
1195        spbufp: *mut *mut crate::spwd,
1196    ) -> c_int;
1197    pub fn sgetspent_r(
1198        s: *const c_char,
1199        spbuf: *mut crate::spwd,
1200        buf: *mut c_char,
1201        buflen: size_t,
1202        spbufp: *mut *mut crate::spwd,
1203    ) -> c_int;
1204    pub fn getspent_r(
1205        spbuf: *mut crate::spwd,
1206        buf: *mut c_char,
1207        buflen: size_t,
1208        spbufp: *mut *mut crate::spwd,
1209    ) -> c_int;
1210    pub fn qsort_r(
1211        base: *mut c_void,
1212        num: size_t,
1213        size: size_t,
1214        compar: Option<unsafe extern "C" fn(*const c_void, *const c_void, *mut c_void) -> c_int>,
1215        arg: *mut c_void,
1216    );
1217    pub fn sendmmsg(
1218        sockfd: c_int,
1219        msgvec: *mut crate::mmsghdr,
1220        vlen: c_uint,
1221        flags: c_int,
1222    ) -> c_int;
1223    pub fn recvmmsg(
1224        sockfd: c_int,
1225        msgvec: *mut crate::mmsghdr,
1226        vlen: c_uint,
1227        flags: c_int,
1228        timeout: *mut crate::timespec,
1229    ) -> c_int;
1230
1231    pub fn getrlimit64(resource: crate::__rlimit_resource_t, rlim: *mut crate::rlimit64) -> c_int;
1232    pub fn setrlimit64(resource: crate::__rlimit_resource_t, rlim: *const crate::rlimit64)
1233        -> c_int;
1234    #[cfg_attr(gnu_file_offset_bits64, link_name = "getrlimit64")]
1235    pub fn getrlimit(resource: crate::__rlimit_resource_t, rlim: *mut crate::rlimit) -> c_int;
1236    #[cfg_attr(gnu_file_offset_bits64, link_name = "setrlimit64")]
1237    pub fn setrlimit(resource: crate::__rlimit_resource_t, rlim: *const crate::rlimit) -> c_int;
1238    #[cfg_attr(gnu_file_offset_bits64, link_name = "prlimit64")]
1239    pub fn prlimit(
1240        pid: crate::pid_t,
1241        resource: crate::__rlimit_resource_t,
1242        new_limit: *const crate::rlimit,
1243        old_limit: *mut crate::rlimit,
1244    ) -> c_int;
1245    pub fn prlimit64(
1246        pid: crate::pid_t,
1247        resource: crate::__rlimit_resource_t,
1248        new_limit: *const crate::rlimit64,
1249        old_limit: *mut crate::rlimit64,
1250    ) -> c_int;
1251    pub fn utmpname(file: *const c_char) -> c_int;
1252    pub fn utmpxname(file: *const c_char) -> c_int;
1253    pub fn getutxent() -> *mut utmpx;
1254    pub fn getutxid(ut: *const utmpx) -> *mut utmpx;
1255    pub fn getutxline(ut: *const utmpx) -> *mut utmpx;
1256    pub fn pututxline(ut: *const utmpx) -> *mut utmpx;
1257    pub fn setutxent();
1258    pub fn endutxent();
1259    pub fn getpt() -> c_int;
1260    pub fn mallopt(param: c_int, value: c_int) -> c_int;
1261    pub fn gettimeofday(tp: *mut crate::timeval, tz: *mut crate::timezone) -> c_int;
1262    pub fn getentropy(buf: *mut c_void, buflen: size_t) -> c_int;
1263    pub fn getrandom(buf: *mut c_void, buflen: size_t, flags: c_uint) -> ssize_t;
1264    pub fn getauxval(type_: c_ulong) -> c_ulong;
1265
1266    pub fn adjtimex(buf: *mut timex) -> c_int;
1267    pub fn ntp_adjtime(buf: *mut timex) -> c_int;
1268    #[link_name = "ntp_gettimex"]
1269    pub fn ntp_gettime(buf: *mut ntptimeval) -> c_int;
1270    pub fn clock_adjtime(clk_id: crate::clockid_t, buf: *mut crate::timex) -> c_int;
1271
1272    pub fn fanotify_mark(
1273        fd: c_int,
1274        flags: c_uint,
1275        mask: u64,
1276        dirfd: c_int,
1277        path: *const c_char,
1278    ) -> c_int;
1279    #[cfg_attr(gnu_file_offset_bits64, link_name = "preadv64v2")]
1280    pub fn preadv2(
1281        fd: c_int,
1282        iov: *const crate::iovec,
1283        iovcnt: c_int,
1284        offset: off_t,
1285        flags: c_int,
1286    ) -> ssize_t;
1287    #[cfg_attr(gnu_file_offset_bits64, link_name = "pwritev64v2")]
1288    pub fn pwritev2(
1289        fd: c_int,
1290        iov: *const crate::iovec,
1291        iovcnt: c_int,
1292        offset: off_t,
1293        flags: c_int,
1294    ) -> ssize_t;
1295    pub fn preadv64v2(
1296        fd: c_int,
1297        iov: *const crate::iovec,
1298        iovcnt: c_int,
1299        offset: off64_t,
1300        flags: c_int,
1301    ) -> ssize_t;
1302    pub fn pwritev64v2(
1303        fd: c_int,
1304        iov: *const crate::iovec,
1305        iovcnt: c_int,
1306        offset: off64_t,
1307        flags: c_int,
1308    ) -> ssize_t;
1309    pub fn renameat2(
1310        olddirfd: c_int,
1311        oldpath: *const c_char,
1312        newdirfd: c_int,
1313        newpath: *const c_char,
1314        flags: c_uint,
1315    ) -> c_int;
1316
1317    // Added in `glibc` 2.25
1318    pub fn explicit_bzero(s: *mut c_void, len: size_t);
1319    // Added in `glibc` 2.29
1320    pub fn reallocarray(ptr: *mut c_void, nmemb: size_t, size: size_t) -> *mut c_void;
1321
1322    pub fn ctermid(s: *mut c_char) -> *mut c_char;
1323    pub fn backtrace(buf: *mut *mut c_void, sz: c_int) -> c_int;
1324    pub fn glob64(
1325        pattern: *const c_char,
1326        flags: c_int,
1327        errfunc: Option<extern "C" fn(epath: *const c_char, errno: c_int) -> c_int>,
1328        pglob: *mut glob64_t,
1329    ) -> c_int;
1330    pub fn globfree64(pglob: *mut glob64_t);
1331    pub fn ptrace(request: c_uint, ...) -> c_long;
1332    pub fn pthread_attr_getaffinity_np(
1333        attr: *const crate::pthread_attr_t,
1334        cpusetsize: size_t,
1335        cpuset: *mut crate::cpu_set_t,
1336    ) -> c_int;
1337    pub fn pthread_attr_setaffinity_np(
1338        attr: *mut crate::pthread_attr_t,
1339        cpusetsize: size_t,
1340        cpuset: *const crate::cpu_set_t,
1341    ) -> c_int;
1342    pub fn getpriority(which: crate::__priority_which_t, who: crate::id_t) -> c_int;
1343    pub fn setpriority(which: crate::__priority_which_t, who: crate::id_t, prio: c_int) -> c_int;
1344    pub fn pthread_rwlockattr_getkind_np(
1345        attr: *const crate::pthread_rwlockattr_t,
1346        val: *mut c_int,
1347    ) -> c_int;
1348    pub fn pthread_rwlockattr_setkind_np(
1349        attr: *mut crate::pthread_rwlockattr_t,
1350        val: c_int,
1351    ) -> c_int;
1352    pub fn pthread_sigqueue(thread: crate::pthread_t, sig: c_int, value: crate::sigval) -> c_int;
1353    pub fn mallinfo() -> crate::mallinfo;
1354    pub fn mallinfo2() -> crate::mallinfo2;
1355    pub fn malloc_stats();
1356    pub fn malloc_info(options: c_int, stream: *mut crate::FILE) -> c_int;
1357    pub fn malloc_usable_size(ptr: *mut c_void) -> size_t;
1358    pub fn getpwent_r(
1359        pwd: *mut crate::passwd,
1360        buf: *mut c_char,
1361        buflen: size_t,
1362        result: *mut *mut crate::passwd,
1363    ) -> c_int;
1364    pub fn getgrent_r(
1365        grp: *mut crate::group,
1366        buf: *mut c_char,
1367        buflen: size_t,
1368        result: *mut *mut crate::group,
1369    ) -> c_int;
1370    pub fn fgetpwent_r(
1371        stream: *mut crate::FILE,
1372        pwd: *mut crate::passwd,
1373        buf: *mut c_char,
1374        buflen: size_t,
1375        result: *mut *mut crate::passwd,
1376    ) -> c_int;
1377    pub fn fgetgrent_r(
1378        stream: *mut crate::FILE,
1379        grp: *mut crate::group,
1380        buf: *mut c_char,
1381        buflen: size_t,
1382        result: *mut *mut crate::group,
1383    ) -> c_int;
1384
1385    pub fn putpwent(p: *const crate::passwd, stream: *mut crate::FILE) -> c_int;
1386    pub fn putgrent(grp: *const crate::group, stream: *mut crate::FILE) -> c_int;
1387
1388    pub fn sethostid(hostid: c_long) -> c_int;
1389
1390    pub fn memfd_create(name: *const c_char, flags: c_uint) -> c_int;
1391    pub fn mlock2(addr: *const c_void, len: size_t, flags: c_uint) -> c_int;
1392
1393    pub fn euidaccess(pathname: *const c_char, mode: c_int) -> c_int;
1394    pub fn eaccess(pathname: *const c_char, mode: c_int) -> c_int;
1395
1396    pub fn asctime_r(tm: *const crate::tm, buf: *mut c_char) -> *mut c_char;
1397    pub fn ctime_r(timep: *const time_t, buf: *mut c_char) -> *mut c_char;
1398
1399    pub fn dirname(path: *mut c_char) -> *mut c_char;
1400    /// POSIX version of `basename(3)`, defined in `libgen.h`.
1401    #[link_name = "__xpg_basename"]
1402    pub fn posix_basename(path: *mut c_char) -> *mut c_char;
1403    /// GNU version of `basename(3)`, defined in `string.h`.
1404    #[link_name = "basename"]
1405    pub fn gnu_basename(path: *const c_char) -> *mut c_char;
1406    pub fn dlmopen(lmid: Lmid_t, filename: *const c_char, flag: c_int) -> *mut c_void;
1407    pub fn dlinfo(handle: *mut c_void, request: c_int, info: *mut c_void) -> c_int;
1408    pub fn dladdr1(
1409        addr: *const c_void,
1410        info: *mut crate::Dl_info,
1411        extra_info: *mut *mut c_void,
1412        flags: c_int,
1413    ) -> c_int;
1414    pub fn malloc_trim(__pad: size_t) -> c_int;
1415    pub fn gnu_get_libc_release() -> *const c_char;
1416    pub fn gnu_get_libc_version() -> *const c_char;
1417
1418    // posix/spawn.h
1419    // Added in `glibc` 2.29
1420    pub fn posix_spawn_file_actions_addchdir_np(
1421        actions: *mut crate::posix_spawn_file_actions_t,
1422        path: *const c_char,
1423    ) -> c_int;
1424    // Added in `glibc` 2.29
1425    pub fn posix_spawn_file_actions_addfchdir_np(
1426        actions: *mut crate::posix_spawn_file_actions_t,
1427        fd: c_int,
1428    ) -> c_int;
1429    // Added in `glibc` 2.34
1430    pub fn posix_spawn_file_actions_addclosefrom_np(
1431        actions: *mut crate::posix_spawn_file_actions_t,
1432        from: c_int,
1433    ) -> c_int;
1434    // Added in `glibc` 2.35
1435    pub fn posix_spawn_file_actions_addtcsetpgrp_np(
1436        actions: *mut crate::posix_spawn_file_actions_t,
1437        tcfd: c_int,
1438    ) -> c_int;
1439
1440    // mntent.h
1441    pub fn getmntent_r(
1442        stream: *mut crate::FILE,
1443        mntbuf: *mut crate::mntent,
1444        buf: *mut c_char,
1445        buflen: c_int,
1446    ) -> *mut crate::mntent;
1447
1448    pub fn execveat(
1449        dirfd: c_int,
1450        pathname: *const c_char,
1451        argv: *const *mut c_char,
1452        envp: *const *mut c_char,
1453        flags: c_int,
1454    ) -> c_int;
1455
1456    // Added in `glibc` 2.34
1457    pub fn close_range(first: c_uint, last: c_uint, flags: c_int) -> c_int;
1458
1459    pub fn mq_notify(mqdes: crate::mqd_t, sevp: *const crate::sigevent) -> c_int;
1460
1461    pub fn epoll_pwait2(
1462        epfd: c_int,
1463        events: *mut crate::epoll_event,
1464        maxevents: c_int,
1465        timeout: *const crate::timespec,
1466        sigmask: *const crate::sigset_t,
1467    ) -> c_int;
1468
1469    pub fn mempcpy(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void;
1470}
1471
1472cfg_if! {
1473    if #[cfg(any(
1474        target_arch = "x86",
1475        target_arch = "arm",
1476        target_arch = "m68k",
1477        target_arch = "csky",
1478        target_arch = "mips",
1479        target_arch = "mips32r6",
1480        target_arch = "powerpc",
1481        target_arch = "sparc",
1482        target_arch = "riscv32"
1483    ))] {
1484        mod b32;
1485        pub use self::b32::*;
1486    } else if #[cfg(any(
1487        target_arch = "x86_64",
1488        target_arch = "aarch64",
1489        target_arch = "powerpc64",
1490        target_arch = "mips64",
1491        target_arch = "mips64r6",
1492        target_arch = "s390x",
1493        target_arch = "sparc64",
1494        target_arch = "riscv64",
1495        target_arch = "loongarch64"
1496    ))] {
1497        mod b64;
1498        pub use self::b64::*;
1499    } else {
1500        // Unknown target_arch
1501    }
1502}