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: Padding<[c_char; 4]>,
41        __glibc_reserved: Padding<[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: Padding<*mut c_void>,
61        __unused2: Padding<*mut c_void>,
62        __unused3: Padding<*mut c_void>,
63        __unused4: Padding<*mut c_void>,
64        __unused5: Padding<*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 ntptimeval {
137        pub time: crate::timeval,
138        pub maxerror: c_long,
139        pub esterror: c_long,
140        pub tai: c_long,
141        pub __glibc_reserved1: c_long,
142        pub __glibc_reserved2: c_long,
143        pub __glibc_reserved3: c_long,
144        pub __glibc_reserved4: c_long,
145    }
146
147    pub struct regex_t {
148        __buffer: *mut c_void,
149        __allocated: size_t,
150        __used: size_t,
151        __syntax: c_ulong,
152        __fastmap: *mut c_char,
153        __translate: *mut c_char,
154        __re_nsub: size_t,
155        __bitfield: u8,
156    }
157
158    pub struct Elf64_Chdr {
159        pub ch_type: crate::Elf64_Word,
160        pub ch_reserved: crate::Elf64_Word,
161        pub ch_size: crate::Elf64_Xword,
162        pub ch_addralign: crate::Elf64_Xword,
163    }
164
165    pub struct Elf32_Chdr {
166        pub ch_type: crate::Elf32_Word,
167        pub ch_size: crate::Elf32_Word,
168        pub ch_addralign: crate::Elf32_Word,
169    }
170
171    pub struct seminfo {
172        pub semmap: c_int,
173        pub semmni: c_int,
174        pub semmns: c_int,
175        pub semmnu: c_int,
176        pub semmsl: c_int,
177        pub semopm: c_int,
178        pub semume: c_int,
179        pub semusz: c_int,
180        pub semvmx: c_int,
181        pub semaem: c_int,
182    }
183
184    pub struct ptrace_peeksiginfo_args {
185        pub off: crate::__u64,
186        pub flags: crate::__u32,
187        pub nr: crate::__s32,
188    }
189
190    pub struct __c_anonymous_ptrace_syscall_info_entry {
191        pub nr: crate::__u64,
192        pub args: [crate::__u64; 6],
193    }
194
195    pub struct __c_anonymous_ptrace_syscall_info_exit {
196        pub sval: crate::__s64,
197        pub is_error: crate::__u8,
198    }
199
200    pub struct __c_anonymous_ptrace_syscall_info_seccomp {
201        pub nr: crate::__u64,
202        pub args: [crate::__u64; 6],
203        pub ret_data: crate::__u32,
204    }
205
206    pub struct ptrace_syscall_info {
207        pub op: crate::__u8,
208        pub pad: [crate::__u8; 3],
209        pub arch: crate::__u32,
210        pub instruction_pointer: crate::__u64,
211        pub stack_pointer: crate::__u64,
212        pub u: __c_anonymous_ptrace_syscall_info_data,
213    }
214
215    pub struct ptrace_sud_config {
216        pub mode: crate::__u64,
217        pub selector: crate::__u64,
218        pub offset: crate::__u64,
219        pub len: crate::__u64,
220    }
221
222    pub struct iocb {
223        pub aio_data: crate::__u64,
224        #[cfg(target_endian = "little")]
225        pub aio_key: crate::__u32,
226        #[cfg(target_endian = "little")]
227        pub aio_rw_flags: crate::__kernel_rwf_t,
228        #[cfg(target_endian = "big")]
229        pub aio_rw_flags: crate::__kernel_rwf_t,
230        #[cfg(target_endian = "big")]
231        pub aio_key: crate::__u32,
232        pub aio_lio_opcode: crate::__u16,
233        pub aio_reqprio: crate::__s16,
234        pub aio_fildes: crate::__u32,
235        pub aio_buf: crate::__u64,
236        pub aio_nbytes: crate::__u64,
237        pub aio_offset: crate::__s64,
238        aio_reserved2: Padding<crate::__u64>,
239        pub aio_flags: crate::__u32,
240        pub aio_resfd: crate::__u32,
241    }
242
243    // netinet/tcp.h
244
245    pub struct tcp_info {
246        pub tcpi_state: u8,
247        pub tcpi_ca_state: u8,
248        pub tcpi_retransmits: u8,
249        pub tcpi_probes: u8,
250        pub tcpi_backoff: u8,
251        pub tcpi_options: u8,
252        /// This contains the bitfields `tcpi_snd_wscale` and `tcpi_rcv_wscale`.
253        /// Each is 4 bits.
254        pub tcpi_snd_rcv_wscale: u8,
255        pub tcpi_rto: u32,
256        pub tcpi_ato: u32,
257        pub tcpi_snd_mss: u32,
258        pub tcpi_rcv_mss: u32,
259        pub tcpi_unacked: u32,
260        pub tcpi_sacked: u32,
261        pub tcpi_lost: u32,
262        pub tcpi_retrans: u32,
263        pub tcpi_fackets: u32,
264        pub tcpi_last_data_sent: u32,
265        pub tcpi_last_ack_sent: u32,
266        pub tcpi_last_data_recv: u32,
267        pub tcpi_last_ack_recv: u32,
268        pub tcpi_pmtu: u32,
269        pub tcpi_rcv_ssthresh: u32,
270        pub tcpi_rtt: u32,
271        pub tcpi_rttvar: u32,
272        pub tcpi_snd_ssthresh: u32,
273        pub tcpi_snd_cwnd: u32,
274        pub tcpi_advmss: u32,
275        pub tcpi_reordering: u32,
276        pub tcpi_rcv_rtt: u32,
277        pub tcpi_rcv_space: u32,
278        pub tcpi_total_retrans: u32,
279    }
280
281    pub struct fanotify_event_info_pidfd {
282        pub hdr: crate::fanotify_event_info_header,
283        pub pidfd: crate::__s32,
284    }
285
286    pub struct fanotify_event_info_error {
287        pub hdr: crate::fanotify_event_info_header,
288        pub error: crate::__s32,
289        pub error_count: crate::__u32,
290    }
291
292    // FIXME(1.0) this is actually a union
293    #[cfg_attr(target_pointer_width = "32", repr(align(4)))]
294    #[cfg_attr(target_pointer_width = "64", repr(align(8)))]
295    pub struct sem_t {
296        #[cfg(target_pointer_width = "32")]
297        __size: [c_char; 16],
298        #[cfg(target_pointer_width = "64")]
299        __size: [c_char; 32],
300    }
301
302    pub struct mbstate_t {
303        __count: c_int,
304        __wchb: [c_char; 4],
305    }
306
307    pub struct fpos64_t {
308        __pos: off64_t,
309        __state: crate::mbstate_t,
310    }
311
312    pub struct fpos_t {
313        #[cfg(not(gnu_file_offset_bits64))]
314        __pos: off_t,
315        #[cfg(gnu_file_offset_bits64)]
316        __pos: off64_t,
317        __state: crate::mbstate_t,
318    }
319
320    // linux x32 compatibility
321    // See https://sourceware.org/bugzilla/show_bug.cgi?id=16437
322    pub struct timespec {
323        pub tv_sec: time_t,
324        #[cfg(all(gnu_time_bits64, target_endian = "big"))]
325        __pad: Padding<i32>,
326        #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
327        pub tv_nsec: c_long,
328        #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
329        pub tv_nsec: i64,
330        #[cfg(all(gnu_time_bits64, target_endian = "little"))]
331        __pad: Padding<i32>,
332    }
333
334    pub struct utmpx {
335        pub ut_type: c_short,
336        pub ut_pid: crate::pid_t,
337        pub ut_line: [c_char; __UT_LINESIZE],
338        pub ut_id: [c_char; 4],
339
340        pub ut_user: [c_char; __UT_NAMESIZE],
341        pub ut_host: [c_char; __UT_HOSTSIZE],
342        pub ut_exit: __exit_status,
343
344        #[cfg(any(
345            target_arch = "aarch64",
346            target_arch = "s390x",
347            target_arch = "loongarch64",
348            all(target_pointer_width = "32", not(target_arch = "x86_64"))
349        ))]
350        pub ut_session: c_long,
351        #[cfg(any(
352            target_arch = "aarch64",
353            target_arch = "s390x",
354            target_arch = "loongarch64",
355            all(target_pointer_width = "32", not(target_arch = "x86_64"))
356        ))]
357        pub ut_tv: crate::timeval,
358
359        #[cfg(not(any(
360            target_arch = "aarch64",
361            target_arch = "s390x",
362            target_arch = "loongarch64",
363            all(target_pointer_width = "32", not(target_arch = "x86_64"))
364        )))]
365        pub ut_session: i32,
366        #[cfg(not(any(
367            target_arch = "aarch64",
368            target_arch = "s390x",
369            target_arch = "loongarch64",
370            all(target_pointer_width = "32", not(target_arch = "x86_64"))
371        )))]
372        pub ut_tv: __timeval,
373
374        pub ut_addr_v6: [i32; 4],
375        __glibc_reserved: Padding<[c_char; 20]>,
376    }
377}
378
379impl siginfo_t {
380    pub unsafe fn si_addr(&self) -> *mut c_void {
381        #[repr(C)]
382        struct siginfo_sigfault {
383            _si_signo: c_int,
384            _si_errno: c_int,
385            _si_code: c_int,
386            si_addr: *mut c_void,
387        }
388        (*(self as *const siginfo_t).cast::<siginfo_sigfault>()).si_addr
389    }
390
391    pub unsafe fn si_value(&self) -> crate::sigval {
392        #[repr(C)]
393        struct siginfo_timer {
394            _si_signo: c_int,
395            _si_errno: c_int,
396            _si_code: c_int,
397            _si_tid: c_int,
398            _si_overrun: c_int,
399            si_sigval: crate::sigval,
400        }
401        (*(self as *const siginfo_t).cast::<siginfo_timer>()).si_sigval
402    }
403}
404
405s_no_extra_traits! {
406    // Internal, for casts to access union fields
407    struct sifields_sigchld {
408        si_pid: crate::pid_t,
409        si_uid: crate::uid_t,
410        si_status: c_int,
411        si_utime: c_long,
412        si_stime: c_long,
413    }
414
415    // Internal, for casts to access union fields
416    union sifields {
417        _align_pointer: *mut c_void,
418        sigchld: sifields_sigchld,
419    }
420
421    // Internal, for casts to access union fields. Note that some variants
422    // of sifields start with a pointer, which makes the alignment of
423    // sifields vary on 32-bit and 64-bit architectures.
424    struct siginfo_f {
425        _siginfo_base: [c_int; 3],
426        sifields: sifields,
427    }
428}
429
430impl siginfo_t {
431    unsafe fn sifields(&self) -> &sifields {
432        &(*(self as *const siginfo_t).cast::<siginfo_f>()).sifields
433    }
434
435    pub unsafe fn si_pid(&self) -> crate::pid_t {
436        self.sifields().sigchld.si_pid
437    }
438
439    pub unsafe fn si_uid(&self) -> crate::uid_t {
440        self.sifields().sigchld.si_uid
441    }
442
443    pub unsafe fn si_status(&self) -> c_int {
444        self.sifields().sigchld.si_status
445    }
446
447    pub unsafe fn si_utime(&self) -> c_long {
448        self.sifields().sigchld.si_utime
449    }
450
451    pub unsafe fn si_stime(&self) -> c_long {
452        self.sifields().sigchld.si_stime
453    }
454}
455
456s_no_extra_traits! {
457    pub union __c_anonymous_ptrace_syscall_info_data {
458        pub entry: __c_anonymous_ptrace_syscall_info_entry,
459        pub exit: __c_anonymous_ptrace_syscall_info_exit,
460        pub seccomp: __c_anonymous_ptrace_syscall_info_seccomp,
461    }
462}
463
464cfg_if! {
465    if #[cfg(feature = "extra_traits")] {
466        impl PartialEq for __c_anonymous_ptrace_syscall_info_data {
467            fn eq(&self, other: &__c_anonymous_ptrace_syscall_info_data) -> bool {
468                unsafe {
469                    self.entry == other.entry
470                        || self.exit == other.exit
471                        || self.seccomp == other.seccomp
472                }
473            }
474        }
475
476        impl Eq for __c_anonymous_ptrace_syscall_info_data {}
477
478        impl hash::Hash for __c_anonymous_ptrace_syscall_info_data {
479            fn hash<H: hash::Hasher>(&self, state: &mut H) {
480                unsafe {
481                    self.entry.hash(state);
482                    self.exit.hash(state);
483                    self.seccomp.hash(state);
484                }
485            }
486        }
487    }
488}
489
490// include/uapi/asm-generic/hugetlb_encode.h
491pub const HUGETLB_FLAG_ENCODE_SHIFT: c_int = 26;
492pub const HUGETLB_FLAG_ENCODE_MASK: c_int = 0x3f;
493
494pub const HUGETLB_FLAG_ENCODE_64KB: c_int = 16 << HUGETLB_FLAG_ENCODE_SHIFT;
495pub const HUGETLB_FLAG_ENCODE_512KB: c_int = 19 << HUGETLB_FLAG_ENCODE_SHIFT;
496pub const HUGETLB_FLAG_ENCODE_1MB: c_int = 20 << HUGETLB_FLAG_ENCODE_SHIFT;
497pub const HUGETLB_FLAG_ENCODE_2MB: c_int = 21 << HUGETLB_FLAG_ENCODE_SHIFT;
498pub const HUGETLB_FLAG_ENCODE_8MB: c_int = 23 << HUGETLB_FLAG_ENCODE_SHIFT;
499pub const HUGETLB_FLAG_ENCODE_16MB: c_int = 24 << HUGETLB_FLAG_ENCODE_SHIFT;
500pub const HUGETLB_FLAG_ENCODE_32MB: c_int = 25 << HUGETLB_FLAG_ENCODE_SHIFT;
501pub const HUGETLB_FLAG_ENCODE_256MB: c_int = 28 << HUGETLB_FLAG_ENCODE_SHIFT;
502pub const HUGETLB_FLAG_ENCODE_512MB: c_int = 29 << HUGETLB_FLAG_ENCODE_SHIFT;
503pub const HUGETLB_FLAG_ENCODE_1GB: c_int = 30 << HUGETLB_FLAG_ENCODE_SHIFT;
504pub const HUGETLB_FLAG_ENCODE_2GB: c_int = 31 << HUGETLB_FLAG_ENCODE_SHIFT;
505pub const HUGETLB_FLAG_ENCODE_16GB: c_int = 34 << HUGETLB_FLAG_ENCODE_SHIFT;
506
507// include/uapi/linux/mman.h
508/*
509 * Huge page size encoding when MAP_HUGETLB is specified, and a huge page
510 * size other than the default is desired.  See hugetlb_encode.h.
511 * All known huge page size encodings are provided here.  It is the
512 * responsibility of the application to know which sizes are supported on
513 * the running system.  See mmap(2) man page for details.
514 */
515pub const MAP_HUGE_SHIFT: c_int = HUGETLB_FLAG_ENCODE_SHIFT;
516pub const MAP_HUGE_MASK: c_int = HUGETLB_FLAG_ENCODE_MASK;
517
518pub const MAP_HUGE_64KB: c_int = HUGETLB_FLAG_ENCODE_64KB;
519pub const MAP_HUGE_512KB: c_int = HUGETLB_FLAG_ENCODE_512KB;
520pub const MAP_HUGE_1MB: c_int = HUGETLB_FLAG_ENCODE_1MB;
521pub const MAP_HUGE_2MB: c_int = HUGETLB_FLAG_ENCODE_2MB;
522pub const MAP_HUGE_8MB: c_int = HUGETLB_FLAG_ENCODE_8MB;
523pub const MAP_HUGE_16MB: c_int = HUGETLB_FLAG_ENCODE_16MB;
524pub const MAP_HUGE_32MB: c_int = HUGETLB_FLAG_ENCODE_32MB;
525pub const MAP_HUGE_256MB: c_int = HUGETLB_FLAG_ENCODE_256MB;
526pub const MAP_HUGE_512MB: c_int = HUGETLB_FLAG_ENCODE_512MB;
527pub const MAP_HUGE_1GB: c_int = HUGETLB_FLAG_ENCODE_1GB;
528pub const MAP_HUGE_2GB: c_int = HUGETLB_FLAG_ENCODE_2GB;
529pub const MAP_HUGE_16GB: c_int = HUGETLB_FLAG_ENCODE_16GB;
530
531pub const PRIO_PROCESS: crate::__priority_which_t = 0;
532pub const PRIO_PGRP: crate::__priority_which_t = 1;
533pub const PRIO_USER: crate::__priority_which_t = 2;
534
535pub const MS_RMT_MASK: c_ulong = 0x02800051;
536
537pub const __UT_LINESIZE: usize = 32;
538pub const __UT_NAMESIZE: usize = 32;
539pub const __UT_HOSTSIZE: usize = 256;
540pub const EMPTY: c_short = 0;
541pub const RUN_LVL: c_short = 1;
542pub const BOOT_TIME: c_short = 2;
543pub const NEW_TIME: c_short = 3;
544pub const OLD_TIME: c_short = 4;
545pub const INIT_PROCESS: c_short = 5;
546pub const LOGIN_PROCESS: c_short = 6;
547pub const USER_PROCESS: c_short = 7;
548pub const DEAD_PROCESS: c_short = 8;
549pub const ACCOUNTING: c_short = 9;
550
551// dlfcn.h
552pub const LM_ID_BASE: c_long = 0;
553pub const LM_ID_NEWLM: c_long = -1;
554
555pub const RTLD_DI_LMID: c_int = 1;
556pub const RTLD_DI_LINKMAP: c_int = 2;
557pub const RTLD_DI_CONFIGADDR: c_int = 3;
558pub const RTLD_DI_SERINFO: c_int = 4;
559pub const RTLD_DI_SERINFOSIZE: c_int = 5;
560pub const RTLD_DI_ORIGIN: c_int = 6;
561pub const RTLD_DI_PROFILENAME: c_int = 7;
562pub const RTLD_DI_PROFILEOUT: c_int = 8;
563pub const RTLD_DI_TLS_MODID: c_int = 9;
564pub const RTLD_DI_TLS_DATA: c_int = 10;
565
566pub const SOCK_NONBLOCK: c_int = O_NONBLOCK;
567
568pub const SOL_RXRPC: c_int = 272;
569pub const SOL_PPPOL2TP: c_int = 273;
570pub const SOL_PNPIPE: c_int = 275;
571pub const SOL_RDS: c_int = 276;
572pub const SOL_IUCV: c_int = 277;
573pub const SOL_CAIF: c_int = 278;
574pub const SOL_NFC: c_int = 280;
575
576pub const MSG_TRYHARD: c_int = 4;
577
578pub const LC_PAPER: c_int = 7;
579pub const LC_NAME: c_int = 8;
580pub const LC_ADDRESS: c_int = 9;
581pub const LC_TELEPHONE: c_int = 10;
582pub const LC_MEASUREMENT: c_int = 11;
583pub const LC_IDENTIFICATION: c_int = 12;
584pub const LC_PAPER_MASK: c_int = 1 << LC_PAPER;
585pub const LC_NAME_MASK: c_int = 1 << LC_NAME;
586pub const LC_ADDRESS_MASK: c_int = 1 << LC_ADDRESS;
587pub const LC_TELEPHONE_MASK: c_int = 1 << LC_TELEPHONE;
588pub const LC_MEASUREMENT_MASK: c_int = 1 << LC_MEASUREMENT;
589pub const LC_IDENTIFICATION_MASK: c_int = 1 << LC_IDENTIFICATION;
590pub const LC_ALL_MASK: c_int = crate::LC_CTYPE_MASK
591    | crate::LC_NUMERIC_MASK
592    | crate::LC_TIME_MASK
593    | crate::LC_COLLATE_MASK
594    | crate::LC_MONETARY_MASK
595    | crate::LC_MESSAGES_MASK
596    | LC_PAPER_MASK
597    | LC_NAME_MASK
598    | LC_ADDRESS_MASK
599    | LC_TELEPHONE_MASK
600    | LC_MEASUREMENT_MASK
601    | LC_IDENTIFICATION_MASK;
602
603pub const ENOTSUP: c_int = EOPNOTSUPP;
604
605pub const SOCK_SEQPACKET: c_int = 5;
606pub const SOCK_DCCP: c_int = 6;
607#[deprecated(since = "0.2.70", note = "AF_PACKET must be used instead")]
608pub const SOCK_PACKET: c_int = 10;
609
610pub const AF_IB: c_int = 27;
611pub const AF_MPLS: c_int = 28;
612pub const AF_NFC: c_int = 39;
613pub const AF_VSOCK: c_int = 40;
614pub const AF_XDP: c_int = 44;
615pub const PF_IB: c_int = AF_IB;
616pub const PF_MPLS: c_int = AF_MPLS;
617pub const PF_NFC: c_int = AF_NFC;
618pub const PF_VSOCK: c_int = AF_VSOCK;
619pub const PF_XDP: c_int = AF_XDP;
620
621pub const SIGEV_THREAD_ID: c_int = 4;
622
623pub const BUFSIZ: c_uint = 8192;
624pub const TMP_MAX: c_uint = 238328;
625pub const FOPEN_MAX: c_uint = 16;
626pub const FILENAME_MAX: c_uint = 4096;
627pub const _CS_GNU_LIBC_VERSION: c_int = 2;
628pub const _CS_GNU_LIBPTHREAD_VERSION: c_int = 3;
629pub const _CS_V6_ENV: c_int = 1148;
630pub const _CS_V7_ENV: c_int = 1149;
631pub const _SC_EQUIV_CLASS_MAX: c_int = 41;
632pub const _SC_CHARCLASS_NAME_MAX: c_int = 45;
633pub const _SC_PII: c_int = 53;
634pub const _SC_PII_XTI: c_int = 54;
635pub const _SC_PII_SOCKET: c_int = 55;
636pub const _SC_PII_INTERNET: c_int = 56;
637pub const _SC_PII_OSI: c_int = 57;
638pub const _SC_POLL: c_int = 58;
639pub const _SC_SELECT: c_int = 59;
640pub const _SC_PII_INTERNET_STREAM: c_int = 61;
641pub const _SC_PII_INTERNET_DGRAM: c_int = 62;
642pub const _SC_PII_OSI_COTS: c_int = 63;
643pub const _SC_PII_OSI_CLTS: c_int = 64;
644pub const _SC_PII_OSI_M: c_int = 65;
645pub const _SC_T_IOV_MAX: c_int = 66;
646pub const _SC_2_C_VERSION: c_int = 96;
647pub const _SC_CHAR_BIT: c_int = 101;
648pub const _SC_CHAR_MAX: c_int = 102;
649pub const _SC_CHAR_MIN: c_int = 103;
650pub const _SC_INT_MAX: c_int = 104;
651pub const _SC_INT_MIN: c_int = 105;
652pub const _SC_LONG_BIT: c_int = 106;
653pub const _SC_WORD_BIT: c_int = 107;
654pub const _SC_MB_LEN_MAX: c_int = 108;
655pub const _SC_SSIZE_MAX: c_int = 110;
656pub const _SC_SCHAR_MAX: c_int = 111;
657pub const _SC_SCHAR_MIN: c_int = 112;
658pub const _SC_SHRT_MAX: c_int = 113;
659pub const _SC_SHRT_MIN: c_int = 114;
660pub const _SC_UCHAR_MAX: c_int = 115;
661pub const _SC_UINT_MAX: c_int = 116;
662pub const _SC_ULONG_MAX: c_int = 117;
663pub const _SC_USHRT_MAX: c_int = 118;
664pub const _SC_NL_ARGMAX: c_int = 119;
665pub const _SC_NL_LANGMAX: c_int = 120;
666pub const _SC_NL_MSGMAX: c_int = 121;
667pub const _SC_NL_NMAX: c_int = 122;
668pub const _SC_NL_SETMAX: c_int = 123;
669pub const _SC_NL_TEXTMAX: c_int = 124;
670pub const _SC_BASE: c_int = 134;
671pub const _SC_C_LANG_SUPPORT: c_int = 135;
672pub const _SC_C_LANG_SUPPORT_R: c_int = 136;
673pub const _SC_DEVICE_IO: c_int = 140;
674pub const _SC_DEVICE_SPECIFIC: c_int = 141;
675pub const _SC_DEVICE_SPECIFIC_R: c_int = 142;
676pub const _SC_FD_MGMT: c_int = 143;
677pub const _SC_FIFO: c_int = 144;
678pub const _SC_PIPE: c_int = 145;
679pub const _SC_FILE_ATTRIBUTES: c_int = 146;
680pub const _SC_FILE_LOCKING: c_int = 147;
681pub const _SC_FILE_SYSTEM: c_int = 148;
682pub const _SC_MULTI_PROCESS: c_int = 150;
683pub const _SC_SINGLE_PROCESS: c_int = 151;
684pub const _SC_NETWORKING: c_int = 152;
685pub const _SC_REGEX_VERSION: c_int = 156;
686pub const _SC_SIGNALS: c_int = 158;
687pub const _SC_SYSTEM_DATABASE: c_int = 162;
688pub const _SC_SYSTEM_DATABASE_R: c_int = 163;
689pub const _SC_USER_GROUPS: c_int = 166;
690pub const _SC_USER_GROUPS_R: c_int = 167;
691pub const _SC_LEVEL1_ICACHE_SIZE: c_int = 185;
692pub const _SC_LEVEL1_ICACHE_ASSOC: c_int = 186;
693pub const _SC_LEVEL1_ICACHE_LINESIZE: c_int = 187;
694pub const _SC_LEVEL1_DCACHE_SIZE: c_int = 188;
695pub const _SC_LEVEL1_DCACHE_ASSOC: c_int = 189;
696pub const _SC_LEVEL1_DCACHE_LINESIZE: c_int = 190;
697pub const _SC_LEVEL2_CACHE_SIZE: c_int = 191;
698pub const _SC_LEVEL2_CACHE_ASSOC: c_int = 192;
699pub const _SC_LEVEL2_CACHE_LINESIZE: c_int = 193;
700pub const _SC_LEVEL3_CACHE_SIZE: c_int = 194;
701pub const _SC_LEVEL3_CACHE_ASSOC: c_int = 195;
702pub const _SC_LEVEL3_CACHE_LINESIZE: c_int = 196;
703pub const _SC_LEVEL4_CACHE_SIZE: c_int = 197;
704pub const _SC_LEVEL4_CACHE_ASSOC: c_int = 198;
705pub const _SC_LEVEL4_CACHE_LINESIZE: c_int = 199;
706pub const O_ACCMODE: c_int = 3;
707pub const ST_RELATIME: c_ulong = 4096;
708pub const NI_MAXHOST: crate::socklen_t = 1025;
709
710// Most `*_SUPER_MAGIC` constants are defined at the `linux_like` level; the
711// following are only available on newer Linux versions than the versions
712// currently used in CI in some configurations, so we define them here.
713cfg_if! {
714    if #[cfg(not(target_arch = "s390x"))] {
715        pub const BINDERFS_SUPER_MAGIC: c_long = 0x6c6f6f70;
716        pub const XFS_SUPER_MAGIC: c_long = 0x58465342;
717    } else if #[cfg(target_arch = "s390x")] {
718        pub const BINDERFS_SUPER_MAGIC: c_uint = 0x6c6f6f70;
719        pub const XFS_SUPER_MAGIC: c_uint = 0x58465342;
720    }
721}
722
723pub const CPU_SETSIZE: c_int = 0x400;
724
725pub const PTRACE_TRACEME: c_uint = 0;
726pub const PTRACE_PEEKTEXT: c_uint = 1;
727pub const PTRACE_PEEKDATA: c_uint = 2;
728pub const PTRACE_PEEKUSER: c_uint = 3;
729pub const PTRACE_POKETEXT: c_uint = 4;
730pub const PTRACE_POKEDATA: c_uint = 5;
731pub const PTRACE_POKEUSER: c_uint = 6;
732pub const PTRACE_CONT: c_uint = 7;
733pub const PTRACE_KILL: c_uint = 8;
734pub const PTRACE_SINGLESTEP: c_uint = 9;
735pub const PTRACE_ATTACH: c_uint = 16;
736pub const PTRACE_SYSCALL: c_uint = 24;
737pub const PTRACE_SETOPTIONS: c_uint = 0x4200;
738pub const PTRACE_GETEVENTMSG: c_uint = 0x4201;
739pub const PTRACE_GETSIGINFO: c_uint = 0x4202;
740pub const PTRACE_SETSIGINFO: c_uint = 0x4203;
741pub const PTRACE_GETREGSET: c_uint = 0x4204;
742pub const PTRACE_SETREGSET: c_uint = 0x4205;
743pub const PTRACE_SEIZE: c_uint = 0x4206;
744pub const PTRACE_INTERRUPT: c_uint = 0x4207;
745pub const PTRACE_LISTEN: c_uint = 0x4208;
746pub const PTRACE_PEEKSIGINFO: c_uint = 0x4209;
747pub const PTRACE_GETSIGMASK: c_uint = 0x420a;
748pub const PTRACE_SETSIGMASK: c_uint = 0x420b;
749pub const PTRACE_GET_SYSCALL_INFO: c_uint = 0x420e;
750pub const PTRACE_SYSCALL_INFO_NONE: crate::__u8 = 0;
751pub const PTRACE_SYSCALL_INFO_ENTRY: crate::__u8 = 1;
752pub const PTRACE_SYSCALL_INFO_EXIT: crate::__u8 = 2;
753pub const PTRACE_SYSCALL_INFO_SECCOMP: crate::__u8 = 3;
754pub const PTRACE_SET_SYSCALL_USER_DISPATCH_CONFIG: crate::__u8 = 0x4210;
755pub const PTRACE_GET_SYSCALL_USER_DISPATCH_CONFIG: crate::__u8 = 0x4211;
756
757// linux/rtnetlink.h
758pub const TCA_PAD: c_ushort = 9;
759pub const TCA_DUMP_INVISIBLE: c_ushort = 10;
760pub const TCA_CHAIN: c_ushort = 11;
761pub const TCA_HW_OFFLOAD: c_ushort = 12;
762
763pub const RTM_DELNETCONF: u16 = 81;
764pub const RTM_NEWSTATS: u16 = 92;
765pub const RTM_GETSTATS: u16 = 94;
766pub const RTM_NEWCACHEREPORT: u16 = 96;
767
768pub const RTM_F_LOOKUP_TABLE: c_uint = 0x1000;
769pub const RTM_F_FIB_MATCH: c_uint = 0x2000;
770
771pub const RTA_VIA: c_ushort = 18;
772pub const RTA_NEWDST: c_ushort = 19;
773pub const RTA_PREF: c_ushort = 20;
774pub const RTA_ENCAP_TYPE: c_ushort = 21;
775pub const RTA_ENCAP: c_ushort = 22;
776pub const RTA_EXPIRES: c_ushort = 23;
777pub const RTA_PAD: c_ushort = 24;
778pub const RTA_UID: c_ushort = 25;
779pub const RTA_TTL_PROPAGATE: c_ushort = 26;
780
781// linux/neighbor.h
782pub const NTF_EXT_LEARNED: u8 = 0x10;
783pub const NTF_OFFLOADED: u8 = 0x20;
784
785pub const NDA_MASTER: c_ushort = 9;
786pub const NDA_LINK_NETNSID: c_ushort = 10;
787pub const NDA_SRC_VNI: c_ushort = 11;
788
789// linux/personality.h
790pub const UNAME26: c_int = 0x0020000;
791pub const FDPIC_FUNCPTRS: c_int = 0x0080000;
792
793pub const GENL_UNS_ADMIN_PERM: c_int = 0x10;
794
795pub const GENL_ID_VFS_DQUOT: c_int = crate::NLMSG_MIN_TYPE + 1;
796pub const GENL_ID_PMCRAID: c_int = crate::NLMSG_MIN_TYPE + 2;
797
798pub const ELFOSABI_ARM_AEABI: u8 = 64;
799
800// linux/sched.h
801pub const CLONE_NEWTIME: c_int = 0x80;
802// DIFF(main): changed to `c_ulonglong` in e9abac9ac2
803pub const CLONE_CLEAR_SIGHAND: c_int = 0x100000000;
804pub const CLONE_INTO_CGROUP: c_int = 0x200000000;
805
806pub const M_MXFAST: c_int = 1;
807pub const M_NLBLKS: c_int = 2;
808pub const M_GRAIN: c_int = 3;
809pub const M_KEEP: c_int = 4;
810pub const M_TRIM_THRESHOLD: c_int = -1;
811pub const M_TOP_PAD: c_int = -2;
812pub const M_MMAP_THRESHOLD: c_int = -3;
813pub const M_MMAP_MAX: c_int = -4;
814pub const M_CHECK_ACTION: c_int = -5;
815pub const M_PERTURB: c_int = -6;
816pub const M_ARENA_TEST: c_int = -7;
817pub const M_ARENA_MAX: c_int = -8;
818
819pub const SOMAXCONN: c_int = 4096;
820
821// linux/mount.h
822pub const MOVE_MOUNT_F_SYMLINKS: c_uint = 0x00000001;
823pub const MOVE_MOUNT_F_AUTOMOUNTS: c_uint = 0x00000002;
824pub const MOVE_MOUNT_F_EMPTY_PATH: c_uint = 0x00000004;
825pub const MOVE_MOUNT_T_SYMLINKS: c_uint = 0x00000010;
826pub const MOVE_MOUNT_T_AUTOMOUNTS: c_uint = 0x00000020;
827pub const MOVE_MOUNT_T_EMPTY_PATH: c_uint = 0x00000040;
828pub const MOVE_MOUNT_SET_GROUP: c_uint = 0x00000100;
829pub const MOVE_MOUNT_BENEATH: c_uint = 0x00000200;
830
831// sys/timex.h
832pub const ADJ_OFFSET: c_uint = 0x0001;
833pub const ADJ_FREQUENCY: c_uint = 0x0002;
834pub const ADJ_MAXERROR: c_uint = 0x0004;
835pub const ADJ_ESTERROR: c_uint = 0x0008;
836pub const ADJ_STATUS: c_uint = 0x0010;
837pub const ADJ_TIMECONST: c_uint = 0x0020;
838pub const ADJ_TAI: c_uint = 0x0080;
839pub const ADJ_SETOFFSET: c_uint = 0x0100;
840pub const ADJ_MICRO: c_uint = 0x1000;
841pub const ADJ_NANO: c_uint = 0x2000;
842pub const ADJ_TICK: c_uint = 0x4000;
843pub const ADJ_OFFSET_SINGLESHOT: c_uint = 0x8001;
844pub const ADJ_OFFSET_SS_READ: c_uint = 0xa001;
845pub const MOD_OFFSET: c_uint = ADJ_OFFSET;
846pub const MOD_FREQUENCY: c_uint = ADJ_FREQUENCY;
847pub const MOD_MAXERROR: c_uint = ADJ_MAXERROR;
848pub const MOD_ESTERROR: c_uint = ADJ_ESTERROR;
849pub const MOD_STATUS: c_uint = ADJ_STATUS;
850pub const MOD_TIMECONST: c_uint = ADJ_TIMECONST;
851pub const MOD_CLKB: c_uint = ADJ_TICK;
852pub const MOD_CLKA: c_uint = ADJ_OFFSET_SINGLESHOT;
853pub const MOD_TAI: c_uint = ADJ_TAI;
854pub const MOD_MICRO: c_uint = ADJ_MICRO;
855pub const MOD_NANO: c_uint = ADJ_NANO;
856pub const STA_PLL: c_int = 0x0001;
857pub const STA_PPSFREQ: c_int = 0x0002;
858pub const STA_PPSTIME: c_int = 0x0004;
859pub const STA_FLL: c_int = 0x0008;
860pub const STA_INS: c_int = 0x0010;
861pub const STA_DEL: c_int = 0x0020;
862pub const STA_UNSYNC: c_int = 0x0040;
863pub const STA_FREQHOLD: c_int = 0x0080;
864pub const STA_PPSSIGNAL: c_int = 0x0100;
865pub const STA_PPSJITTER: c_int = 0x0200;
866pub const STA_PPSWANDER: c_int = 0x0400;
867pub const STA_PPSERROR: c_int = 0x0800;
868pub const STA_CLOCKERR: c_int = 0x1000;
869pub const STA_NANO: c_int = 0x2000;
870pub const STA_MODE: c_int = 0x4000;
871pub const STA_CLK: c_int = 0x8000;
872pub const STA_RONLY: c_int = STA_PPSSIGNAL
873    | STA_PPSJITTER
874    | STA_PPSWANDER
875    | STA_PPSERROR
876    | STA_CLOCKERR
877    | STA_NANO
878    | STA_MODE
879    | STA_CLK;
880pub const NTP_API: c_int = 4;
881pub const TIME_OK: c_int = 0;
882pub const TIME_INS: c_int = 1;
883pub const TIME_DEL: c_int = 2;
884pub const TIME_OOP: c_int = 3;
885pub const TIME_WAIT: c_int = 4;
886pub const TIME_ERROR: c_int = 5;
887pub const TIME_BAD: c_int = TIME_ERROR;
888pub const MAXTC: c_long = 6;
889
890// Portable GLOB_* flags are defined at the `linux_like` level.
891// The following are GNU extensions.
892pub const GLOB_PERIOD: c_int = 1 << 7;
893pub const GLOB_ALTDIRFUNC: c_int = 1 << 9;
894pub const GLOB_BRACE: c_int = 1 << 10;
895pub const GLOB_NOMAGIC: c_int = 1 << 11;
896pub const GLOB_TILDE: c_int = 1 << 12;
897pub const GLOB_ONLYDIR: c_int = 1 << 13;
898pub const GLOB_TILDE_CHECK: c_int = 1 << 14;
899
900pub const MADV_COLLAPSE: c_int = 25;
901
902cfg_if! {
903    if #[cfg(any(
904        target_arch = "arm",
905        target_arch = "x86",
906        target_arch = "x86_64",
907        target_arch = "s390x",
908        target_arch = "riscv64",
909        target_arch = "riscv32"
910    ))] {
911        pub const PTHREAD_STACK_MIN: size_t = 16384;
912    } else if #[cfg(any(target_arch = "sparc", target_arch = "sparc64"))] {
913        pub const PTHREAD_STACK_MIN: size_t = 0x6000;
914    } else {
915        pub const PTHREAD_STACK_MIN: size_t = 131072;
916    }
917}
918pub const PTHREAD_MUTEX_ADAPTIVE_NP: c_int = 3;
919
920pub const REG_STARTEND: c_int = 4;
921
922pub const REG_EEND: c_int = 14;
923pub const REG_ESIZE: c_int = 15;
924pub const REG_ERPAREN: c_int = 16;
925
926extern "C" {
927    pub fn fgetspent_r(
928        fp: *mut crate::FILE,
929        spbuf: *mut crate::spwd,
930        buf: *mut c_char,
931        buflen: size_t,
932        spbufp: *mut *mut crate::spwd,
933    ) -> c_int;
934    pub fn sgetspent_r(
935        s: *const c_char,
936        spbuf: *mut crate::spwd,
937        buf: *mut c_char,
938        buflen: size_t,
939        spbufp: *mut *mut crate::spwd,
940    ) -> c_int;
941    pub fn getspent_r(
942        spbuf: *mut crate::spwd,
943        buf: *mut c_char,
944        buflen: size_t,
945        spbufp: *mut *mut crate::spwd,
946    ) -> c_int;
947    pub fn qsort_r(
948        base: *mut c_void,
949        num: size_t,
950        size: size_t,
951        compar: Option<unsafe extern "C" fn(*const c_void, *const c_void, *mut c_void) -> c_int>,
952        arg: *mut c_void,
953    );
954    #[cfg_attr(gnu_time_bits64, link_name = "__sendmmsg64")]
955    pub fn sendmmsg(
956        sockfd: c_int,
957        msgvec: *mut crate::mmsghdr,
958        vlen: c_uint,
959        flags: c_int,
960    ) -> c_int;
961    #[cfg_attr(gnu_time_bits64, link_name = "__recvmmsg64")]
962    pub fn recvmmsg(
963        sockfd: c_int,
964        msgvec: *mut crate::mmsghdr,
965        vlen: c_uint,
966        flags: c_int,
967        timeout: *mut crate::timespec,
968    ) -> c_int;
969
970    pub fn getrlimit64(resource: crate::__rlimit_resource_t, rlim: *mut crate::rlimit64) -> c_int;
971    pub fn setrlimit64(resource: crate::__rlimit_resource_t, rlim: *const crate::rlimit64)
972        -> c_int;
973    #[cfg_attr(gnu_file_offset_bits64, link_name = "getrlimit64")]
974    pub fn getrlimit(resource: crate::__rlimit_resource_t, rlim: *mut crate::rlimit) -> c_int;
975    #[cfg_attr(gnu_file_offset_bits64, link_name = "setrlimit64")]
976    pub fn setrlimit(resource: crate::__rlimit_resource_t, rlim: *const crate::rlimit) -> c_int;
977    #[cfg_attr(gnu_file_offset_bits64, link_name = "prlimit64")]
978    pub fn prlimit(
979        pid: crate::pid_t,
980        resource: crate::__rlimit_resource_t,
981        new_limit: *const crate::rlimit,
982        old_limit: *mut crate::rlimit,
983    ) -> c_int;
984    pub fn prlimit64(
985        pid: crate::pid_t,
986        resource: crate::__rlimit_resource_t,
987        new_limit: *const crate::rlimit64,
988        old_limit: *mut crate::rlimit64,
989    ) -> c_int;
990    pub fn utmpname(file: *const c_char) -> c_int;
991    pub fn utmpxname(file: *const c_char) -> c_int;
992    pub fn getutxent() -> *mut utmpx;
993    pub fn getutxid(ut: *const utmpx) -> *mut utmpx;
994    pub fn getutxline(ut: *const utmpx) -> *mut utmpx;
995    pub fn pututxline(ut: *const utmpx) -> *mut utmpx;
996    pub fn setutxent();
997    pub fn endutxent();
998    pub fn getpt() -> c_int;
999    pub fn mallopt(param: c_int, value: c_int) -> c_int;
1000    #[cfg_attr(gnu_time_bits64, link_name = "__gettimeofday64")]
1001    pub fn gettimeofday(tp: *mut crate::timeval, tz: *mut crate::timezone) -> c_int;
1002    pub fn getentropy(buf: *mut c_void, buflen: size_t) -> c_int;
1003    pub fn getrandom(buf: *mut c_void, buflen: size_t, flags: c_uint) -> ssize_t;
1004    pub fn getauxval(type_: c_ulong) -> c_ulong;
1005
1006    #[cfg_attr(gnu_time_bits64, link_name = "___adjtimex64")]
1007    pub fn adjtimex(buf: *mut timex) -> c_int;
1008    #[cfg_attr(gnu_time_bits64, link_name = "___adjtimex64")]
1009    pub fn ntp_adjtime(buf: *mut timex) -> c_int;
1010    #[cfg_attr(not(gnu_time_bits64), link_name = "ntp_gettimex")]
1011    #[cfg_attr(gnu_time_bits64, link_name = "__ntp_gettime64")]
1012    pub fn ntp_gettime(buf: *mut ntptimeval) -> c_int;
1013    #[cfg_attr(gnu_time_bits64, link_name = "__clock_adjtime64")]
1014    pub fn clock_adjtime(clk_id: crate::clockid_t, buf: *mut crate::timex) -> c_int;
1015
1016    pub fn fanotify_mark(
1017        fd: c_int,
1018        flags: c_uint,
1019        mask: u64,
1020        dirfd: c_int,
1021        path: *const c_char,
1022    ) -> c_int;
1023    #[cfg_attr(gnu_file_offset_bits64, link_name = "preadv64v2")]
1024    pub fn preadv2(
1025        fd: c_int,
1026        iov: *const crate::iovec,
1027        iovcnt: c_int,
1028        offset: off_t,
1029        flags: c_int,
1030    ) -> ssize_t;
1031    #[cfg_attr(gnu_file_offset_bits64, link_name = "pwritev64v2")]
1032    pub fn pwritev2(
1033        fd: c_int,
1034        iov: *const crate::iovec,
1035        iovcnt: c_int,
1036        offset: off_t,
1037        flags: c_int,
1038    ) -> ssize_t;
1039    pub fn preadv64v2(
1040        fd: c_int,
1041        iov: *const crate::iovec,
1042        iovcnt: c_int,
1043        offset: off64_t,
1044        flags: c_int,
1045    ) -> ssize_t;
1046    pub fn pwritev64v2(
1047        fd: c_int,
1048        iov: *const crate::iovec,
1049        iovcnt: c_int,
1050        offset: off64_t,
1051        flags: c_int,
1052    ) -> ssize_t;
1053    pub fn renameat2(
1054        olddirfd: c_int,
1055        oldpath: *const c_char,
1056        newdirfd: c_int,
1057        newpath: *const c_char,
1058        flags: c_uint,
1059    ) -> c_int;
1060
1061    // Added in `glibc` 2.25
1062    pub fn explicit_bzero(s: *mut c_void, len: size_t);
1063    // Added in `glibc` 2.29
1064    pub fn reallocarray(ptr: *mut c_void, nmemb: size_t, size: size_t) -> *mut c_void;
1065
1066    pub fn ctermid(s: *mut c_char) -> *mut c_char;
1067    pub fn backtrace(buf: *mut *mut c_void, sz: c_int) -> c_int;
1068    pub fn backtrace_symbols(buffer: *const *mut c_void, len: c_int) -> *mut *mut c_char;
1069    pub fn backtrace_symbols_fd(buffer: *const *mut c_void, len: c_int, fd: c_int);
1070    #[cfg_attr(gnu_time_bits64, link_name = "__glob64_time64")]
1071    pub fn glob64(
1072        pattern: *const c_char,
1073        flags: c_int,
1074        errfunc: Option<extern "C" fn(epath: *const c_char, errno: c_int) -> c_int>,
1075        pglob: *mut glob64_t,
1076    ) -> c_int;
1077    #[cfg_attr(gnu_time_bits64, link_name = "__globfree64_time64")]
1078    pub fn globfree64(pglob: *mut glob64_t);
1079    pub fn ptrace(request: c_uint, ...) -> c_long;
1080    pub fn pthread_attr_getaffinity_np(
1081        attr: *const crate::pthread_attr_t,
1082        cpusetsize: size_t,
1083        cpuset: *mut crate::cpu_set_t,
1084    ) -> c_int;
1085    pub fn pthread_attr_setaffinity_np(
1086        attr: *mut crate::pthread_attr_t,
1087        cpusetsize: size_t,
1088        cpuset: *const crate::cpu_set_t,
1089    ) -> c_int;
1090    pub fn getpriority(which: crate::__priority_which_t, who: crate::id_t) -> c_int;
1091    pub fn setpriority(which: crate::__priority_which_t, who: crate::id_t, prio: c_int) -> c_int;
1092    pub fn pthread_rwlockattr_getkind_np(
1093        attr: *const crate::pthread_rwlockattr_t,
1094        val: *mut c_int,
1095    ) -> c_int;
1096    pub fn pthread_rwlockattr_setkind_np(
1097        attr: *mut crate::pthread_rwlockattr_t,
1098        val: c_int,
1099    ) -> c_int;
1100    pub fn pthread_sigqueue(thread: crate::pthread_t, sig: c_int, value: crate::sigval) -> c_int;
1101    pub fn pthread_tryjoin_np(thread: crate::pthread_t, retval: *mut *mut c_void) -> c_int;
1102    #[cfg_attr(
1103        all(target_pointer_width = "32", gnu_time_bits64),
1104        link_name = "__pthread_timedjoin_np64"
1105    )]
1106    pub fn pthread_timedjoin_np(
1107        thread: crate::pthread_t,
1108        retval: *mut *mut c_void,
1109        abstime: *const crate::timespec,
1110    ) -> c_int;
1111    pub fn mallinfo() -> crate::mallinfo;
1112    pub fn mallinfo2() -> crate::mallinfo2;
1113    pub fn malloc_stats();
1114    pub fn malloc_info(options: c_int, stream: *mut crate::FILE) -> c_int;
1115    pub fn malloc_usable_size(ptr: *mut c_void) -> size_t;
1116    pub fn getpwent_r(
1117        pwd: *mut crate::passwd,
1118        buf: *mut c_char,
1119        buflen: size_t,
1120        result: *mut *mut crate::passwd,
1121    ) -> c_int;
1122    pub fn getgrent_r(
1123        grp: *mut crate::group,
1124        buf: *mut c_char,
1125        buflen: size_t,
1126        result: *mut *mut crate::group,
1127    ) -> c_int;
1128    pub fn fgetpwent_r(
1129        stream: *mut crate::FILE,
1130        pwd: *mut crate::passwd,
1131        buf: *mut c_char,
1132        buflen: size_t,
1133        result: *mut *mut crate::passwd,
1134    ) -> c_int;
1135    pub fn fgetgrent_r(
1136        stream: *mut crate::FILE,
1137        grp: *mut crate::group,
1138        buf: *mut c_char,
1139        buflen: size_t,
1140        result: *mut *mut crate::group,
1141    ) -> c_int;
1142
1143    pub fn putpwent(p: *const crate::passwd, stream: *mut crate::FILE) -> c_int;
1144    pub fn putgrent(grp: *const crate::group, stream: *mut crate::FILE) -> c_int;
1145
1146    pub fn sethostid(hostid: c_long) -> c_int;
1147
1148    pub fn memfd_create(name: *const c_char, flags: c_uint) -> c_int;
1149    pub fn mlock2(addr: *const c_void, len: size_t, flags: c_uint) -> c_int;
1150
1151    pub fn euidaccess(pathname: *const c_char, mode: c_int) -> c_int;
1152    pub fn eaccess(pathname: *const c_char, mode: c_int) -> c_int;
1153
1154    pub fn asctime_r(tm: *const crate::tm, buf: *mut c_char) -> *mut c_char;
1155    #[cfg_attr(gnu_time_bits64, link_name = "__ctime64_r")]
1156    pub fn ctime_r(timep: *const time_t, buf: *mut c_char) -> *mut c_char;
1157
1158    pub fn dirname(path: *mut c_char) -> *mut c_char;
1159    /// POSIX version of `basename(3)`, defined in `libgen.h`.
1160    #[link_name = "__xpg_basename"]
1161    pub fn posix_basename(path: *mut c_char) -> *mut c_char;
1162    /// GNU version of `basename(3)`, defined in `string.h`.
1163    #[link_name = "basename"]
1164    pub fn gnu_basename(path: *const c_char) -> *mut c_char;
1165    pub fn dlmopen(lmid: Lmid_t, filename: *const c_char, flag: c_int) -> *mut c_void;
1166    pub fn dlinfo(handle: *mut c_void, request: c_int, info: *mut c_void) -> c_int;
1167    pub fn dladdr1(
1168        addr: *const c_void,
1169        info: *mut crate::Dl_info,
1170        extra_info: *mut *mut c_void,
1171        flags: c_int,
1172    ) -> c_int;
1173    pub fn dlvsym(
1174        handle: *mut c_void,
1175        symbol: *const c_char,
1176        version: *const c_char,
1177    ) -> *mut c_void;
1178    pub fn malloc_trim(__pad: size_t) -> c_int;
1179    pub fn gnu_get_libc_release() -> *const c_char;
1180    pub fn gnu_get_libc_version() -> *const c_char;
1181
1182    // posix/spawn.h
1183    // Added in `glibc` 2.29
1184    pub fn posix_spawn_file_actions_addchdir_np(
1185        actions: *mut crate::posix_spawn_file_actions_t,
1186        path: *const c_char,
1187    ) -> c_int;
1188    // Added in `glibc` 2.29
1189    pub fn posix_spawn_file_actions_addfchdir_np(
1190        actions: *mut crate::posix_spawn_file_actions_t,
1191        fd: c_int,
1192    ) -> c_int;
1193    // Added in `glibc` 2.34
1194    pub fn posix_spawn_file_actions_addclosefrom_np(
1195        actions: *mut crate::posix_spawn_file_actions_t,
1196        from: c_int,
1197    ) -> c_int;
1198    // Added in `glibc` 2.35
1199    pub fn posix_spawn_file_actions_addtcsetpgrp_np(
1200        actions: *mut crate::posix_spawn_file_actions_t,
1201        tcfd: c_int,
1202    ) -> c_int;
1203
1204    // mntent.h
1205    pub fn getmntent_r(
1206        stream: *mut crate::FILE,
1207        mntbuf: *mut crate::mntent,
1208        buf: *mut c_char,
1209        buflen: c_int,
1210    ) -> *mut crate::mntent;
1211
1212    pub fn execveat(
1213        dirfd: c_int,
1214        pathname: *const c_char,
1215        argv: *const *mut c_char,
1216        envp: *const *mut c_char,
1217        flags: c_int,
1218    ) -> c_int;
1219
1220    // Added in `glibc` 2.34
1221    pub fn close_range(first: c_uint, last: c_uint, flags: c_int) -> c_int;
1222
1223    pub fn mq_notify(mqdes: crate::mqd_t, sevp: *const crate::sigevent) -> c_int;
1224
1225    #[cfg_attr(gnu_time_bits64, link_name = "__epoll_pwait2_time64")]
1226    pub fn epoll_pwait2(
1227        epfd: c_int,
1228        events: *mut crate::epoll_event,
1229        maxevents: c_int,
1230        timeout: *const crate::timespec,
1231        sigmask: *const crate::sigset_t,
1232    ) -> c_int;
1233
1234    pub fn mempcpy(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void;
1235}
1236
1237cfg_if! {
1238    if #[cfg(any(
1239        target_arch = "x86",
1240        target_arch = "arm",
1241        target_arch = "m68k",
1242        target_arch = "csky",
1243        target_arch = "mips",
1244        target_arch = "mips32r6",
1245        target_arch = "powerpc",
1246        target_arch = "sparc",
1247        target_arch = "riscv32"
1248    ))] {
1249        mod b32;
1250        pub use self::b32::*;
1251    } else if #[cfg(any(
1252        target_arch = "x86_64",
1253        target_arch = "aarch64",
1254        target_arch = "powerpc64",
1255        target_arch = "mips64",
1256        target_arch = "mips64r6",
1257        target_arch = "s390x",
1258        target_arch = "sparc64",
1259        target_arch = "riscv64",
1260        target_arch = "loongarch64"
1261    ))] {
1262        mod b64;
1263        pub use self::b64::*;
1264    } else {
1265        // Unknown target_arch
1266    }
1267}