xref: /rust-libc-0.2.174/libc-test/build.rs (revision 04fae4bd)
1 #![deny(warnings)]
2 
3 extern crate cc;
4 extern crate ctest2 as ctest;
5 
6 use std::fs::File;
7 use std::io::{BufRead, BufReader, BufWriter, Write};
8 use std::path::{Path, PathBuf};
9 use std::{env, io};
10 
11 fn do_cc() {
12     let target = env::var("TARGET").unwrap();
13     if cfg!(unix) {
14         let exclude = ["redox", "wasi"];
15         if !exclude.iter().any(|x| target.contains(x)) {
16             let mut cmsg = cc::Build::new();
17 
18             cmsg.file("src/cmsg.c");
19 
20             if target.contains("solaris") || target.contains("illumos") {
21                 cmsg.define("_XOPEN_SOURCE", "700");
22             }
23             cmsg.compile("cmsg");
24         }
25 
26         if target.contains("linux")
27             || target.contains("android")
28             || target.contains("emscripten")
29             || target.contains("fuchsia")
30             || target.contains("bsd")
31         {
32             cc::Build::new().file("src/makedev.c").compile("makedev");
33         }
34     }
35     if target.contains("android") || target.contains("linux") {
36         cc::Build::new().file("src/errqueue.c").compile("errqueue");
37     }
38     if target.contains("linux")
39         || target.contains("l4re")
40         || target.contains("android")
41         || target.contains("emscripten")
42     {
43         cc::Build::new().file("src/sigrt.c").compile("sigrt");
44     }
45 }
46 
47 fn do_ctest() {
48     match &env::var("TARGET").unwrap() {
49         t if t.contains("android") => return test_android(t),
50         t if t.contains("apple") => return test_apple(t),
51         t if t.contains("dragonfly") => return test_dragonflybsd(t),
52         t if t.contains("emscripten") => return test_emscripten(t),
53         t if t.contains("freebsd") => return test_freebsd(t),
54         t if t.contains("haiku") => return test_haiku(t),
55         t if t.contains("linux") => return test_linux(t),
56         t if t.contains("netbsd") => return test_netbsd(t),
57         t if t.contains("openbsd") => return test_openbsd(t),
58         t if t.contains("redox") => return test_redox(t),
59         t if t.contains("solaris") => return test_solarish(t),
60         t if t.contains("illumos") => return test_solarish(t),
61         t if t.contains("wasi") => return test_wasi(t),
62         t if t.contains("windows") => return test_windows(t),
63         t if t.contains("vxworks") => return test_vxworks(t),
64         t if t.contains("nto-qnx") => return test_neutrino(t),
65         t => panic!("unknown target {}", t),
66     }
67 }
68 
69 fn ctest_cfg() -> ctest::TestGenerator {
70     let mut cfg = ctest::TestGenerator::new();
71     let libc_cfgs = [
72         "libc_priv_mod_use",
73         "libc_union",
74         "libc_const_size_of",
75         "libc_align",
76         "libc_core_cvoid",
77         "libc_packedN",
78         "libc_thread_local",
79     ];
80     for f in &libc_cfgs {
81         cfg.cfg(f, None);
82     }
83     cfg
84 }
85 
86 fn do_semver() {
87     let mut out = PathBuf::from(env::var("OUT_DIR").unwrap());
88     out.push("semver.rs");
89     let mut output = BufWriter::new(File::create(&out).unwrap());
90 
91     let family = env::var("CARGO_CFG_TARGET_FAMILY").unwrap();
92     let vendor = env::var("CARGO_CFG_TARGET_VENDOR").unwrap();
93     let os = env::var("CARGO_CFG_TARGET_OS").unwrap();
94     let arch = env::var("CARGO_CFG_TARGET_ARCH").unwrap();
95     let target_env = env::var("CARGO_CFG_TARGET_ENV").unwrap();
96 
97     // `libc-test/semver` dir.
98     let mut semver_root = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap());
99     semver_root.push("semver");
100 
101     // NOTE: Windows has the same `family` as `os`, no point in including it
102     // twice.
103     // NOTE: Android doesn't include the unix file (or the Linux file) because
104     // there are some many definitions missing it's actually easier just to
105     // maintain a file for Android.
106     if family != os && os != "android" {
107         process_semver_file(&mut output, &mut semver_root, &family);
108     }
109     process_semver_file(&mut output, &mut semver_root, &vendor);
110     process_semver_file(&mut output, &mut semver_root, &os);
111     let os_arch = format!("{}-{}", os, arch);
112     process_semver_file(&mut output, &mut semver_root, &os_arch);
113     if target_env != "" {
114         let os_env = format!("{}-{}", os, target_env);
115         process_semver_file(&mut output, &mut semver_root, &os_env);
116 
117         let os_env_arch = format!("{}-{}-{}", os, target_env, arch);
118         process_semver_file(&mut output, &mut semver_root, &os_env_arch);
119     }
120 }
121 
122 fn process_semver_file<W: Write, P: AsRef<Path>>(output: &mut W, path: &mut PathBuf, file: P) {
123     // NOTE: `path` is reused between calls, so always remove the file again.
124     path.push(file);
125     path.set_extension("txt");
126 
127     println!("cargo:rerun-if-changed={}", path.display());
128     let input_file = match File::open(&*path) {
129         Ok(file) => file,
130         Err(ref err) if err.kind() == io::ErrorKind::NotFound => {
131             path.pop();
132             return;
133         }
134         Err(err) => panic!("unexpected error opening file: {}", err),
135     };
136     let input = BufReader::new(input_file);
137 
138     write!(output, "// Source: {}.\n", path.display()).unwrap();
139     output.write(b"use libc::{\n").unwrap();
140     for line in input.lines() {
141         let line = line.unwrap().into_bytes();
142         match line.first() {
143             // Ignore comments and empty lines.
144             Some(b'#') | None => continue,
145             _ => {
146                 output.write(b"    ").unwrap();
147                 output.write(&line).unwrap();
148                 output.write(b",\n").unwrap();
149             }
150         }
151     }
152     output.write(b"};\n\n").unwrap();
153     path.pop();
154 }
155 
156 fn main() {
157     do_cc();
158     do_ctest();
159     do_semver();
160 }
161 
162 macro_rules! headers {
163     ($cfg:ident: [$m:expr]: $header:literal) => {
164         if $m {
165             $cfg.header($header);
166         }
167     };
168     ($cfg:ident: $header:literal) => {
169         $cfg.header($header);
170     };
171     ($($cfg:ident: $([$c:expr]:)* $header:literal,)*) => {
172         $(headers!($cfg: $([$c]:)* $header);)*
173     };
174     ($cfg:ident: $( $([$c:expr]:)* $header:literal,)*) => {
175         headers!($($cfg: $([$c]:)* $header,)*);
176     };
177     ($cfg:ident: $( $([$c:expr]:)* $header:literal),*) => {
178         headers!($($cfg: $([$c]:)* $header,)*);
179     };
180 }
181 
182 fn test_apple(target: &str) {
183     assert!(target.contains("apple"));
184     let x86_64 = target.contains("x86_64");
185     let i686 = target.contains("i686");
186 
187     let mut cfg = ctest_cfg();
188     cfg.flag("-Wno-deprecated-declarations");
189     cfg.define("__APPLE_USE_RFC_3542", None);
190 
191     headers! { cfg:
192         "aio.h",
193         "CommonCrypto/CommonCrypto.h",
194         "CommonCrypto/CommonRandom.h",
195         "copyfile.h",
196         "crt_externs.h",
197         "ctype.h",
198         "dirent.h",
199         "dlfcn.h",
200         "errno.h",
201         "execinfo.h",
202         "fcntl.h",
203         "getopt.h",
204         "glob.h",
205         "grp.h",
206         "iconv.h",
207         "ifaddrs.h",
208         "langinfo.h",
209         "libgen.h",
210         "libproc.h",
211         "limits.h",
212         "locale.h",
213         "mach-o/dyld.h",
214         "mach/mach_init.h",
215         "mach/mach.h",
216         "mach/mach_time.h",
217         "mach/mach_types.h",
218         "mach/mach_vm.h",
219         "mach/thread_act.h",
220         "mach/thread_policy.h",
221         "malloc/malloc.h",
222         "net/bpf.h",
223         "net/dlil.h",
224         "net/if.h",
225         "net/if_arp.h",
226         "net/if_dl.h",
227         "net/if_utun.h",
228         "net/if_var.h",
229         "net/ndrv.h",
230         "net/route.h",
231         "netdb.h",
232         "netinet/if_ether.h",
233         "netinet/in.h",
234         "netinet/ip.h",
235         "netinet/tcp.h",
236         "netinet/udp.h",
237         "os/lock.h",
238         "os/signpost.h",
239         "poll.h",
240         "pthread.h",
241         "pthread_spis.h",
242         "pthread/introspection.h",
243         "pthread/spawn.h",
244         "pthread/stack_np.h",
245         "pwd.h",
246         "regex.h",
247         "resolv.h",
248         "sched.h",
249         "semaphore.h",
250         "signal.h",
251         "spawn.h",
252         "stddef.h",
253         "stdint.h",
254         "stdio.h",
255         "stdlib.h",
256         "string.h",
257         "sysdir.h",
258         "sys/appleapiopts.h",
259         "sys/attr.h",
260         "sys/clonefile.h",
261         "sys/event.h",
262         "sys/file.h",
263         "sys/ioctl.h",
264         "sys/ipc.h",
265         "sys/kern_control.h",
266         "sys/mman.h",
267         "sys/mount.h",
268         "sys/proc_info.h",
269         "sys/ptrace.h",
270         "sys/quota.h",
271         "sys/resource.h",
272         "sys/sem.h",
273         "sys/shm.h",
274         "sys/socket.h",
275         "sys/stat.h",
276         "sys/statvfs.h",
277         "sys/sys_domain.h",
278         "sys/sysctl.h",
279         "sys/time.h",
280         "sys/times.h",
281         "sys/timex.h",
282         "sys/types.h",
283         "sys/uio.h",
284         "sys/un.h",
285         "sys/utsname.h",
286         "sys/wait.h",
287         "sys/xattr.h",
288         "syslog.h",
289         "termios.h",
290         "time.h",
291         "unistd.h",
292         "util.h",
293         "utime.h",
294         "utmpx.h",
295         "wchar.h",
296         "xlocale.h",
297         [x86_64]: "crt_externs.h",
298     }
299 
300     cfg.skip_struct(move |ty| {
301         match ty {
302             // FIXME: actually a union
303             "sigval" => true,
304 
305             // FIXME: The size is changed in recent macOSes.
306             "malloc_zone_t" => true,
307 
308             _ => false,
309         }
310     });
311 
312     cfg.skip_type(move |ty| match ty {
313         _ => false,
314     });
315 
316     cfg.skip_const(move |name| {
317         // They're declared via `deprecated_mach` and we don't support it anymore.
318         if name.starts_with("VM_FLAGS_") {
319             return true;
320         }
321         match name {
322             // These OSX constants are removed in Sierra.
323             // https://developer.apple.com/library/content/releasenotes/General/APIDiffsMacOS10_12/Swift/Darwin.html
324             "KERN_KDENABLE_BG_TRACE" | "KERN_KDDISABLE_BG_TRACE" => true,
325             // FIXME: the value has been changed since Catalina (0xffff0000 -> 0x3fff0000).
326             "SF_SETTABLE" => true,
327 
328             // FIXME: XCode 13.1 doesn't have it.
329             "TIOCREMOTE" => true,
330             _ => false,
331         }
332     });
333 
334     cfg.skip_fn(move |name| {
335         // skip those that are manually verified
336         match name {
337             // FIXME: https://github.com/rust-lang/libc/issues/1272
338             "execv" | "execve" | "execvp" => true,
339 
340             // close calls the close_nocancel system call
341             "close" => true,
342 
343             // FIXME: libstd removed libresolv support: https://github.com/rust-lang/rust/pull/102766
344             "res_init" => true,
345 
346             // FIXME: remove once the target in CI is updated
347             "pthread_jit_write_freeze_callbacks_np" => true,
348 
349             // FIXME: ABI has been changed on recent macOSes.
350             "os_unfair_lock_assert_owner" | "os_unfair_lock_assert_not_owner" => true,
351 
352             _ => false,
353         }
354     });
355 
356     cfg.skip_field(move |struct_, field| {
357         match (struct_, field) {
358             // FIXME: the array size has been changed since macOS 10.15 ([8] -> [7]).
359             ("statfs", "f_reserved") => true,
360             ("__darwin_arm_neon_state64", "__v") => true,
361             // MAXPATHLEN is too big for auto-derive traits on arrays.
362             ("vnode_info_path", "vip_path") => true,
363             _ => false,
364         }
365     });
366 
367     cfg.skip_field_type(move |struct_, field| {
368         match (struct_, field) {
369             // FIXME: actually a union
370             ("sigevent", "sigev_value") => true,
371             _ => false,
372         }
373     });
374 
375     cfg.volatile_item(|i| {
376         use ctest::VolatileItemKind::*;
377         match i {
378             StructField(ref n, ref f) if n == "aiocb" && f == "aio_buf" => true,
379             _ => false,
380         }
381     });
382 
383     cfg.type_name(move |ty, is_struct, is_union| {
384         match ty {
385             // Just pass all these through, no need for a "struct" prefix
386             "FILE" | "DIR" | "Dl_info" => ty.to_string(),
387 
388             // OSX calls this something else
389             "sighandler_t" => "sig_t".to_string(),
390 
391             t if is_union => format!("union {}", t),
392             t if t.ends_with("_t") => t.to_string(),
393             t if is_struct => format!("struct {}", t),
394             t => t.to_string(),
395         }
396     });
397 
398     cfg.field_name(move |struct_, field| {
399         match field {
400             s if s.ends_with("_nsec") && struct_.starts_with("stat") => {
401                 s.replace("e_nsec", "espec.tv_nsec")
402             }
403             // FIXME: sigaction actually contains a union with two variants:
404             // a sa_sigaction with type: (*)(int, struct __siginfo *, void *)
405             // a sa_handler with type sig_t
406             "sa_sigaction" if struct_ == "sigaction" => "sa_handler".to_string(),
407             s => s.to_string(),
408         }
409     });
410 
411     cfg.skip_roundtrip(move |s| match s {
412         // FIXME: this type has the wrong ABI
413         "max_align_t" if i686 => true,
414         // Can't return an array from a C function.
415         "uuid_t" | "vol_capabilities_set_t" => true,
416         _ => false,
417     });
418     cfg.generate("../src/lib.rs", "main.rs");
419 }
420 
421 fn test_openbsd(target: &str) {
422     assert!(target.contains("openbsd"));
423 
424     let mut cfg = ctest_cfg();
425     cfg.flag("-Wno-deprecated-declarations");
426 
427     let x86_64 = target.contains("x86_64");
428 
429     headers! { cfg:
430         "elf.h",
431         "errno.h",
432         "execinfo.h",
433         "fcntl.h",
434         "getopt.h",
435         "libgen.h",
436         "limits.h",
437         "link.h",
438         "locale.h",
439         "stddef.h",
440         "stdint.h",
441         "stdio.h",
442         "stdlib.h",
443         "sys/stat.h",
444         "sys/types.h",
445         "time.h",
446         "wchar.h",
447         "ctype.h",
448         "dirent.h",
449         "sys/socket.h",
450         [x86_64]:"machine/fpu.h",
451         "net/if.h",
452         "net/route.h",
453         "net/if_arp.h",
454         "netdb.h",
455         "netinet/in.h",
456         "netinet/ip.h",
457         "netinet/tcp.h",
458         "netinet/udp.h",
459         "net/bpf.h",
460         "regex.h",
461         "resolv.h",
462         "pthread.h",
463         "dlfcn.h",
464         "search.h",
465         "signal.h",
466         "string.h",
467         "sys/file.h",
468         "sys/futex.h",
469         "sys/ioctl.h",
470         "sys/ipc.h",
471         "sys/mman.h",
472         "sys/param.h",
473         "sys/resource.h",
474         "sys/shm.h",
475         "sys/socket.h",
476         "sys/time.h",
477         "sys/uio.h",
478         "sys/ktrace.h",
479         "sys/un.h",
480         "sys/wait.h",
481         "unistd.h",
482         "utime.h",
483         "pwd.h",
484         "grp.h",
485         "sys/utsname.h",
486         "sys/ptrace.h",
487         "sys/mount.h",
488         "sys/uio.h",
489         "sched.h",
490         "termios.h",
491         "poll.h",
492         "syslog.h",
493         "semaphore.h",
494         "sys/statvfs.h",
495         "sys/times.h",
496         "glob.h",
497         "ifaddrs.h",
498         "langinfo.h",
499         "sys/sysctl.h",
500         "utmp.h",
501         "sys/event.h",
502         "net/if_dl.h",
503         "util.h",
504         "ufs/ufs/quota.h",
505         "pthread_np.h",
506         "sys/syscall.h",
507         "sys/shm.h",
508         "sys/param.h",
509     }
510 
511     cfg.skip_struct(move |ty| {
512         match ty {
513             // FIXME: actually a union
514             "sigval" => true,
515 
516             _ => false,
517         }
518     });
519 
520     cfg.skip_const(move |name| {
521         match name {
522             // Removed in OpenBSD 6.0
523             "KERN_USERMOUNT" | "KERN_ARND" => true,
524             // Removed in OpenBSD 7.2
525             "KERN_NSELCOLL" => true,
526             // Good chance it's going to be wrong depending on the host release
527             "KERN_MAXID" | "NET_RT_MAXID" => true,
528             "EV_SYSFLAGS" => true,
529             _ => false,
530         }
531     });
532 
533     cfg.skip_fn(move |name| {
534         match name {
535             // FIXME: https://github.com/rust-lang/libc/issues/1272
536             "execv" | "execve" | "execvp" | "execvpe" => true,
537 
538             // Removed in OpenBSD 6.5
539             // https://marc.info/?l=openbsd-cvs&m=154723400730318
540             "mincore" => true,
541 
542             // futex() has volatile arguments, but that doesn't exist in Rust.
543             "futex" => true,
544 
545             // Available for openBSD 7.3
546             "mimmutable" => true,
547 
548             _ => false,
549         }
550     });
551 
552     cfg.type_name(move |ty, is_struct, is_union| {
553         match ty {
554             // Just pass all these through, no need for a "struct" prefix
555             "FILE" | "DIR" | "Dl_info" | "Elf32_Phdr" | "Elf64_Phdr" => ty.to_string(),
556 
557             // OSX calls this something else
558             "sighandler_t" => "sig_t".to_string(),
559 
560             t if is_union => format!("union {}", t),
561             t if t.ends_with("_t") => t.to_string(),
562             t if is_struct => format!("struct {}", t),
563             t => t.to_string(),
564         }
565     });
566 
567     cfg.field_name(move |struct_, field| match field {
568         "st_birthtime" if struct_.starts_with("stat") => "__st_birthtime".to_string(),
569         "st_birthtime_nsec" if struct_.starts_with("stat") => "__st_birthtimensec".to_string(),
570         s if s.ends_with("_nsec") && struct_.starts_with("stat") => s.replace("e_nsec", ".tv_nsec"),
571         "sa_sigaction" if struct_ == "sigaction" => "sa_handler".to_string(),
572         s => s.to_string(),
573     });
574 
575     cfg.skip_field_type(move |struct_, field| {
576         // type siginfo_t.si_addr changed from OpenBSD 6.0 to 6.1
577         struct_ == "siginfo_t" && field == "si_addr"
578     });
579 
580     cfg.skip_field(|struct_, field| {
581         match (struct_, field) {
582             // conflicting with `p_type` macro from <resolve.h>.
583             ("Elf32_Phdr", "p_type") => true,
584             ("Elf64_Phdr", "p_type") => true,
585             _ => false,
586         }
587     });
588 
589     cfg.generate("../src/lib.rs", "main.rs");
590 }
591 
592 fn test_windows(target: &str) {
593     assert!(target.contains("windows"));
594     let gnu = target.contains("gnu");
595 
596     let mut cfg = ctest_cfg();
597     if target.contains("msvc") {
598         cfg.flag("/wd4324");
599     }
600     cfg.define("_WIN32_WINNT", Some("0x8000"));
601 
602     headers! { cfg:
603         "direct.h",
604         "errno.h",
605         "fcntl.h",
606         "io.h",
607         "limits.h",
608         "locale.h",
609         "process.h",
610         "signal.h",
611         "stddef.h",
612         "stdint.h",
613         "stdio.h",
614         "stdlib.h",
615         "sys/stat.h",
616         "sys/types.h",
617         "sys/utime.h",
618         "time.h",
619         "wchar.h",
620         [gnu]: "ws2tcpip.h",
621         [!gnu]: "Winsock2.h",
622     }
623 
624     cfg.type_name(move |ty, is_struct, is_union| {
625         match ty {
626             // Just pass all these through, no need for a "struct" prefix
627             "FILE" | "DIR" | "Dl_info" => ty.to_string(),
628 
629             // FIXME: these don't exist:
630             "time64_t" => "__time64_t".to_string(),
631             "ssize_t" => "SSIZE_T".to_string(),
632 
633             "sighandler_t" if !gnu => "_crt_signal_t".to_string(),
634             "sighandler_t" if gnu => "__p_sig_fn_t".to_string(),
635 
636             t if is_union => format!("union {}", t),
637             t if t.ends_with("_t") => t.to_string(),
638 
639             // Windows uppercase structs don't have `struct` in front:
640             t if is_struct => {
641                 if ty.clone().chars().next().unwrap().is_uppercase() {
642                     t.to_string()
643                 } else if t == "stat" {
644                     "struct __stat64".to_string()
645                 } else if t == "utimbuf" {
646                     "struct __utimbuf64".to_string()
647                 } else {
648                     // put `struct` in front of all structs:
649                     format!("struct {}", t)
650                 }
651             }
652             t => t.to_string(),
653         }
654     });
655 
656     cfg.fn_cname(move |name, cname| cname.unwrap_or(name).to_string());
657 
658     cfg.skip_type(move |name| match name {
659         "SSIZE_T" if !gnu => true,
660         "ssize_t" if !gnu => true,
661         _ => false,
662     });
663 
664     cfg.skip_struct(move |ty| {
665         if ty.starts_with("__c_anonymous_") {
666             return true;
667         }
668         return false;
669     });
670 
671     cfg.skip_const(move |name| {
672         match name {
673             // FIXME: API error:
674             // SIG_ERR type is "void (*)(int)", not "int"
675             "SIG_ERR" |
676             // Similar for SIG_DFL/IGN/GET/SGE/ACK
677             "SIG_DFL" | "SIG_IGN" | "SIG_GET" | "SIG_SGE" | "SIG_ACK" => true,
678             // FIXME: newer windows-gnu environment on CI?
679             "_O_OBTAIN_DIR" if gnu => true,
680             _ => false,
681         }
682     });
683 
684     cfg.skip_field(move |s, field| match s {
685         "CONTEXT" if field == "Fp" => true,
686         _ => false,
687     });
688     // FIXME: All functions point to the wrong addresses?
689     cfg.skip_fn_ptrcheck(|_| true);
690 
691     cfg.skip_signededness(move |c| {
692         match c {
693             // windows-isms
694             n if n.starts_with("P") => true,
695             n if n.starts_with("H") => true,
696             n if n.starts_with("LP") => true,
697             "sighandler_t" if gnu => true,
698             _ => false,
699         }
700     });
701 
702     cfg.skip_fn(move |name| {
703         match name {
704             // FIXME: https://github.com/rust-lang/libc/issues/1272
705             "execv" | "execve" | "execvp" | "execvpe" => true,
706 
707             _ => false,
708         }
709     });
710 
711     cfg.generate("../src/lib.rs", "main.rs");
712 }
713 
714 fn test_redox(target: &str) {
715     assert!(target.contains("redox"));
716 
717     let mut cfg = ctest_cfg();
718     cfg.flag("-Wno-deprecated-declarations");
719 
720     headers! {
721         cfg:
722         "ctype.h",
723         "dirent.h",
724         "dlfcn.h",
725         "errno.h",
726         "fcntl.h",
727         "grp.h",
728         "limits.h",
729         "locale.h",
730         "netdb.h",
731         "netinet/in.h",
732         "netinet/ip.h",
733         "netinet/tcp.h",
734         "poll.h",
735         "pwd.h",
736         "semaphore.h",
737         "string.h",
738         "strings.h",
739         "sys/file.h",
740         "sys/ioctl.h",
741         "sys/mman.h",
742         "sys/ptrace.h",
743         "sys/resource.h",
744         "sys/socket.h",
745         "sys/stat.h",
746         "sys/statvfs.h",
747         "sys/time.h",
748         "sys/types.h",
749         "sys/uio.h",
750         "sys/un.h",
751         "sys/utsname.h",
752         "sys/wait.h",
753         "termios.h",
754         "time.h",
755         "unistd.h",
756         "utime.h",
757         "wchar.h",
758     }
759 
760     cfg.generate("../src/lib.rs", "main.rs");
761 }
762 
763 fn test_solarish(target: &str) {
764     let is_solaris = target.contains("solaris");
765     let is_illumos = target.contains("illumos");
766     assert!(is_solaris || is_illumos);
767 
768     // ctest generates arguments supported only by clang, so make sure to run with CC=clang.
769     // While debugging, "CFLAGS=-ferror-limit=<large num>" is useful to get more error output.
770     let mut cfg = ctest_cfg();
771     cfg.flag("-Wno-deprecated-declarations");
772 
773     cfg.define("_XOPEN_SOURCE", Some("700"));
774     cfg.define("__EXTENSIONS__", None);
775     cfg.define("_LCONV_C99", None);
776 
777     headers! {
778         cfg:
779         "ctype.h",
780         "dirent.h",
781         "dlfcn.h",
782         "door.h",
783         "errno.h",
784         "execinfo.h",
785         "fcntl.h",
786         "getopt.h",
787         "glob.h",
788         "grp.h",
789         "ifaddrs.h",
790         "langinfo.h",
791         "limits.h",
792         "link.h",
793         "locale.h",
794         "mqueue.h",
795         "net/if.h",
796         "net/if_arp.h",
797         "net/route.h",
798         "netdb.h",
799         "netinet/in.h",
800         "netinet/ip.h",
801         "netinet/tcp.h",
802         "netinet/udp.h",
803         "poll.h",
804         "port.h",
805         "pthread.h",
806         "pwd.h",
807         "resolv.h",
808         "sched.h",
809         "semaphore.h",
810         "signal.h",
811         "stddef.h",
812         "stdint.h",
813         "stdio.h",
814         "stdlib.h",
815         "string.h",
816         "sys/auxv.h",
817         "sys/epoll.h",
818         "sys/eventfd.h",
819         "sys/file.h",
820         "sys/filio.h",
821         "sys/ioctl.h",
822         "sys/lgrp_user.h",
823         "sys/loadavg.h",
824         "sys/mman.h",
825         "sys/mount.h",
826         "sys/priv.h",
827         "sys/pset.h",
828         "sys/random.h",
829         "sys/resource.h",
830         "sys/sendfile.h",
831         "sys/socket.h",
832         "sys/stat.h",
833         "sys/statvfs.h",
834         "sys/stropts.h",
835         "sys/shm.h",
836         "sys/systeminfo.h",
837         "sys/time.h",
838         "sys/times.h",
839         "sys/timex.h",
840         "sys/types.h",
841         "sys/uio.h",
842         "sys/un.h",
843         "sys/utsname.h",
844         "sys/wait.h",
845         "syslog.h",
846         "termios.h",
847         "thread.h",
848         "time.h",
849         "priv.h",
850         "ucontext.h",
851         "unistd.h",
852         "utime.h",
853         "utmpx.h",
854         "wchar.h",
855     }
856 
857     cfg.skip_type(move |ty| match ty {
858         "sighandler_t" => true,
859         _ => false,
860     });
861 
862     cfg.type_name(move |ty, is_struct, is_union| match ty {
863         "FILE" => "__FILE".to_string(),
864         "DIR" | "Dl_info" => ty.to_string(),
865         t if t.ends_with("_t") => t.to_string(),
866         t if is_struct => format!("struct {}", t),
867         t if is_union => format!("union {}", t),
868         t => t.to_string(),
869     });
870 
871     cfg.field_name(move |struct_, field| {
872         match struct_ {
873             // rust struct uses raw u64, rather than union
874             "epoll_event" if field == "u64" => "data.u64".to_string(),
875             // rust struct was committed with typo for Solaris
876             "door_arg_t" if field == "dec_num" => "desc_num".to_string(),
877             "stat" if field.ends_with("_nsec") => {
878                 // expose stat.Xtim.tv_nsec fields
879                 field.trim_end_matches("e_nsec").to_string() + ".tv_nsec"
880             }
881             _ => field.to_string(),
882         }
883     });
884 
885     cfg.skip_const(move |name| match name {
886         "DT_FIFO" | "DT_CHR" | "DT_DIR" | "DT_BLK" | "DT_REG" | "DT_LNK" | "DT_SOCK"
887         | "USRQUOTA" | "GRPQUOTA" | "PRIO_MIN" | "PRIO_MAX" => true,
888 
889         // skip sighandler_t assignments
890         "SIG_DFL" | "SIG_ERR" | "SIG_IGN" => true,
891 
892         "DT_UNKNOWN" => true,
893 
894         "_UTX_LINESIZE" | "_UTX_USERSIZE" | "_UTX_PADSIZE" | "_UTX_IDSIZE" | "_UTX_HOSTSIZE" => {
895             true
896         }
897 
898         "EADI" | "EXTPROC" | "IPC_SEAT" => true,
899 
900         // This evaluates to a sysconf() call rather than a constant
901         "PTHREAD_STACK_MIN" => true,
902 
903         // EPOLLEXCLUSIVE is a relatively recent addition to the epoll interface and may not be
904         // defined on older systems.  It is, however, safe to use on systems which do not
905         // explicitly support it. (A no-op is an acceptable implementation of EPOLLEXCLUSIVE.)
906         "EPOLLEXCLUSIVE" => true,
907 
908         _ => false,
909     });
910 
911     cfg.skip_struct(move |ty| {
912         if ty.starts_with("__c_anonymous_") {
913             return true;
914         }
915         // the union handling is a mess
916         if ty.contains("door_desc_t_") {
917             return true;
918         }
919         match ty {
920             // union, not a struct
921             "sigval" => true,
922             // a bunch of solaris-only fields
923             "utmpx" if is_illumos => true,
924             _ => false,
925         }
926     });
927 
928     cfg.skip_field(move |s, field| {
929         match s {
930             // C99 sizing on this is tough
931             "dirent" if field == "d_name" => true,
932             // the union/macro makes this rough
933             "sigaction" if field == "sa_sigaction" => true,
934             // Missing in illumos
935             "sigevent" if field == "ss_sp" => true,
936             // Avoid sigval union issues
937             "sigevent" if field == "sigev_value" => true,
938             // const issues
939             "sigevent" if field == "sigev_notify_attributes" => true,
940 
941             // Avoid const and union issues
942             "door_arg" if field == "desc_ptr" => true,
943             "door_desc_t" if field == "d_data" => true,
944             "door_arg_t" if field.ends_with("_ptr") => true,
945             "door_arg_t" if field.ends_with("rbuf") => true,
946 
947             // anonymous union challenges
948             "fpregset_t" if field == "fp_reg_set" => true,
949 
950             // The LX brand (integrated into some illumos distros) commandeered several of the
951             // `uc_filler` fields to use for brand-specific state.
952             "ucontext_t" if is_illumos && (field == "uc_filler" || field == "uc_brand_data") => {
953                 true
954             }
955 
956             _ => false,
957         }
958     });
959 
960     cfg.skip_fn(move |name| {
961         // skip those that are manually verified
962         match name {
963             // const-ness only added recently
964             "dladdr" => true,
965 
966             // Definition of those functions as changed since unified headers
967             // from NDK r14b These changes imply some API breaking changes but
968             // are still ABI compatible. We can wait for the next major release
969             // to be compliant with the new API.
970             //
971             // FIXME: unskip these for next major release
972             "setpriority" | "personality" => true,
973 
974             // signal is defined in terms of sighandler_t, so ignore
975             "signal" => true,
976 
977             // Currently missing
978             "cfmakeraw" | "cfsetspeed" => true,
979 
980             // const-ness issues
981             "execv" | "execve" | "execvp" | "settimeofday" | "sethostname" => true,
982 
983             // Solaris-different
984             "getpwent_r" | "getgrent_r" | "updwtmpx" if is_illumos => true,
985             "madvise" | "mprotect" if is_illumos => true,
986             "door_call" | "door_return" | "door_create" if is_illumos => true,
987 
988             // Not visible when build with _XOPEN_SOURCE=700
989             "mmapobj" | "mmap64" | "meminfo" | "getpagesizes" | "getpagesizes2" => true,
990 
991             // These functions may return int or void depending on the exact
992             // configuration of the compilation environment, but the return
993             // value is not useful (always 0) so we can ignore it:
994             "setservent" | "endservent" if is_illumos => true,
995 
996             _ => false,
997         }
998     });
999 
1000     cfg.generate("../src/lib.rs", "main.rs");
1001 }
1002 
1003 fn test_netbsd(target: &str) {
1004     assert!(target.contains("netbsd"));
1005     let mut cfg = ctest_cfg();
1006 
1007     cfg.flag("-Wno-deprecated-declarations");
1008     cfg.define("_NETBSD_SOURCE", Some("1"));
1009 
1010     headers! {
1011         cfg:
1012         "elf.h",
1013         "errno.h",
1014         "fcntl.h",
1015         "getopt.h",
1016         "libgen.h",
1017         "limits.h",
1018         "link.h",
1019         "locale.h",
1020         "stddef.h",
1021         "stdint.h",
1022         "stdio.h",
1023         "stdlib.h",
1024         "sys/stat.h",
1025         "sys/types.h",
1026         "time.h",
1027         "wchar.h",
1028         "aio.h",
1029         "ctype.h",
1030         "dirent.h",
1031         "dlfcn.h",
1032         "glob.h",
1033         "grp.h",
1034         "ifaddrs.h",
1035         "langinfo.h",
1036         "net/bpf.h",
1037         "net/if.h",
1038         "net/if_arp.h",
1039         "net/if_dl.h",
1040         "net/route.h",
1041         "netdb.h",
1042         "netinet/in.h",
1043         "netinet/ip.h",
1044         "netinet/tcp.h",
1045         "netinet/udp.h",
1046         "poll.h",
1047         "pthread.h",
1048         "pwd.h",
1049         "regex.h",
1050         "resolv.h",
1051         "sched.h",
1052         "semaphore.h",
1053         "signal.h",
1054         "string.h",
1055         "sys/endian.h",
1056         "sys/exec_elf.h",
1057         "sys/xattr.h",
1058         "sys/extattr.h",
1059         "sys/file.h",
1060         "sys/ioctl.h",
1061         "sys/ioctl_compat.h",
1062         "sys/ipc.h",
1063         "sys/ktrace.h",
1064         "sys/mman.h",
1065         "sys/mount.h",
1066         "sys/ptrace.h",
1067         "sys/resource.h",
1068         "sys/shm.h",
1069         "sys/socket.h",
1070         "sys/statvfs.h",
1071         "sys/sysctl.h",
1072         "sys/time.h",
1073         "sys/times.h",
1074         "sys/timex.h",
1075         "sys/ucontext.h",
1076         "sys/ucred.h",
1077         "sys/uio.h",
1078         "sys/un.h",
1079         "sys/utsname.h",
1080         "sys/wait.h",
1081         "syslog.h",
1082         "termios.h",
1083         "ufs/ufs/quota.h",
1084         "ufs/ufs/quota1.h",
1085         "unistd.h",
1086         "util.h",
1087         "utime.h",
1088         "mqueue.h",
1089         "netinet/dccp.h",
1090         "sys/event.h",
1091         "sys/quota.h",
1092         "sys/shm.h",
1093         "iconv.h",
1094     }
1095 
1096     cfg.type_name(move |ty, is_struct, is_union| {
1097         match ty {
1098             // Just pass all these through, no need for a "struct" prefix
1099             "FILE" | "fd_set" | "Dl_info" | "DIR" | "Elf32_Phdr" | "Elf64_Phdr" | "Elf32_Shdr"
1100             | "Elf64_Shdr" | "Elf32_Sym" | "Elf64_Sym" | "Elf32_Ehdr" | "Elf64_Ehdr"
1101             | "Elf32_Chdr" | "Elf64_Chdr" => ty.to_string(),
1102 
1103             // OSX calls this something else
1104             "sighandler_t" => "sig_t".to_string(),
1105 
1106             t if is_union => format!("union {}", t),
1107 
1108             t if t.ends_with("_t") => t.to_string(),
1109 
1110             // put `struct` in front of all structs:.
1111             t if is_struct => format!("struct {}", t),
1112 
1113             t => t.to_string(),
1114         }
1115     });
1116 
1117     cfg.field_name(move |struct_, field| {
1118         match field {
1119             // Our stat *_nsec fields normally don't actually exist but are part
1120             // of a timeval struct
1121             s if s.ends_with("_nsec") && struct_.starts_with("stat") => {
1122                 s.replace("e_nsec", ".tv_nsec")
1123             }
1124             "u64" if struct_ == "epoll_event" => "data.u64".to_string(),
1125             s => s.to_string(),
1126         }
1127     });
1128 
1129     cfg.skip_type(move |ty| {
1130         if ty.starts_with("__c_anonymous_") {
1131             return true;
1132         }
1133         match ty {
1134             // FIXME: sighandler_t is crazy across platforms
1135             "sighandler_t" => true,
1136             _ => false,
1137         }
1138     });
1139 
1140     cfg.skip_struct(move |ty| {
1141         match ty {
1142             // This is actually a union, not a struct
1143             "sigval" => true,
1144             // These are tested as part of the linux_fcntl tests since there are
1145             // header conflicts when including them with all the other structs.
1146             "termios2" => true,
1147             _ => false,
1148         }
1149     });
1150 
1151     cfg.skip_signededness(move |c| {
1152         match c {
1153             "LARGE_INTEGER" | "float" | "double" => true,
1154             n if n.starts_with("pthread") => true,
1155             // sem_t is a struct or pointer
1156             "sem_t" => true,
1157             _ => false,
1158         }
1159     });
1160 
1161     cfg.skip_const(move |name| {
1162         match name {
1163             "SIG_DFL" | "SIG_ERR" | "SIG_IGN" => true, // sighandler_t weirdness
1164             "SIGUNUSED" => true,                       // removed in glibc 2.26
1165 
1166             // weird signed extension or something like that?
1167             "MS_NOUSER" => true,
1168             "MS_RMT_MASK" => true, // updated in glibc 2.22 and musl 1.1.13
1169             "BOTHER" => true,
1170             "GRND_RANDOM" | "GRND_INSECURE" | "GRND_NONBLOCK" => true, // netbsd 10 minimum
1171 
1172             _ => false,
1173         }
1174     });
1175 
1176     cfg.skip_fn(move |name| {
1177         match name {
1178             // FIXME: https://github.com/rust-lang/libc/issues/1272
1179             "execv" | "execve" | "execvp" => true,
1180             // FIXME: netbsd 10 minimum
1181             "getentropy" | "getrandom" => true,
1182 
1183             "getrlimit" | "getrlimit64" |    // non-int in 1st arg
1184             "setrlimit" | "setrlimit64" |    // non-int in 1st arg
1185             "prlimit" | "prlimit64" |        // non-int in 2nd arg
1186 
1187             _ => false,
1188         }
1189     });
1190 
1191     cfg.skip_field_type(move |struct_, field| {
1192         // This is a weird union, don't check the type.
1193         (struct_ == "ifaddrs" && field == "ifa_ifu") ||
1194         // sighandler_t type is super weird
1195         (struct_ == "sigaction" && field == "sa_sigaction") ||
1196         // sigval is actually a union, but we pretend it's a struct
1197         (struct_ == "sigevent" && field == "sigev_value") ||
1198         // aio_buf is "volatile void*" and Rust doesn't understand volatile
1199         (struct_ == "aiocb" && field == "aio_buf")
1200     });
1201 
1202     cfg.skip_field(|struct_, field| {
1203         match (struct_, field) {
1204             // conflicting with `p_type` macro from <resolve.h>.
1205             ("Elf32_Phdr", "p_type") => true,
1206             ("Elf64_Phdr", "p_type") => true,
1207             // pthread_spin_t is a volatile uchar
1208             ("pthread_spinlock_t", "pts_spin") => true,
1209             _ => false,
1210         }
1211     });
1212 
1213     cfg.generate("../src/lib.rs", "main.rs");
1214 }
1215 
1216 fn test_dragonflybsd(target: &str) {
1217     assert!(target.contains("dragonfly"));
1218     let mut cfg = ctest_cfg();
1219     cfg.flag("-Wno-deprecated-declarations");
1220 
1221     headers! {
1222         cfg:
1223         "aio.h",
1224         "ctype.h",
1225         "dirent.h",
1226         "dlfcn.h",
1227         "errno.h",
1228         "execinfo.h",
1229         "fcntl.h",
1230         "getopt.h",
1231         "glob.h",
1232         "grp.h",
1233         "ifaddrs.h",
1234         "kvm.h",
1235         "langinfo.h",
1236         "libgen.h",
1237         "limits.h",
1238         "link.h",
1239         "locale.h",
1240         "mqueue.h",
1241         "net/bpf.h",
1242         "net/if.h",
1243         "net/if_arp.h",
1244         "net/if_dl.h",
1245         "net/route.h",
1246         "netdb.h",
1247         "netinet/in.h",
1248         "netinet/ip.h",
1249         "netinet/tcp.h",
1250         "netinet/udp.h",
1251         "poll.h",
1252         "pthread.h",
1253         "pthread_np.h",
1254         "pwd.h",
1255         "regex.h",
1256         "resolv.h",
1257         "sched.h",
1258         "semaphore.h",
1259         "signal.h",
1260         "stddef.h",
1261         "stdint.h",
1262         "stdio.h",
1263         "stdlib.h",
1264         "string.h",
1265         "sys/event.h",
1266         "sys/file.h",
1267         "sys/ioctl.h",
1268         "sys/cpuctl.h",
1269         "sys/eui64.h",
1270         "sys/ipc.h",
1271         "sys/kinfo.h",
1272         "sys/ktrace.h",
1273         "sys/malloc.h",
1274         "sys/mman.h",
1275         "sys/mount.h",
1276         "sys/procctl.h",
1277         "sys/ptrace.h",
1278         "sys/resource.h",
1279         "sys/rtprio.h",
1280         "sys/sched.h",
1281         "sys/shm.h",
1282         "sys/socket.h",
1283         "sys/stat.h",
1284         "sys/statvfs.h",
1285         "sys/sysctl.h",
1286         "sys/time.h",
1287         "sys/times.h",
1288         "sys/timex.h",
1289         "sys/types.h",
1290         "sys/checkpoint.h",
1291         "sys/uio.h",
1292         "sys/un.h",
1293         "sys/utsname.h",
1294         "sys/wait.h",
1295         "syslog.h",
1296         "termios.h",
1297         "time.h",
1298         "ucontext.h",
1299         "unistd.h",
1300         "util.h",
1301         "utime.h",
1302         "utmpx.h",
1303         "vfs/ufs/quota.h",
1304         "vm/vm_map.h",
1305         "wchar.h",
1306         "iconv.h",
1307     }
1308 
1309     cfg.type_name(move |ty, is_struct, is_union| {
1310         match ty {
1311             // Just pass all these through, no need for a "struct" prefix
1312             "FILE" | "fd_set" | "Dl_info" | "DIR" | "Elf32_Phdr" | "Elf64_Phdr" | "Elf32_Shdr"
1313             | "Elf64_Shdr" | "Elf32_Sym" | "Elf64_Sym" | "Elf32_Ehdr" | "Elf64_Ehdr"
1314             | "Elf32_Chdr" | "Elf64_Chdr" => ty.to_string(),
1315 
1316             // FIXME: OSX calls this something else
1317             "sighandler_t" => "sig_t".to_string(),
1318 
1319             t if is_union => format!("union {}", t),
1320 
1321             t if t.ends_with("_t") => t.to_string(),
1322 
1323             // sigval is a struct in Rust, but a union in C:
1324             "sigval" => format!("union sigval"),
1325 
1326             // put `struct` in front of all structs:.
1327             t if is_struct => format!("struct {}", t),
1328 
1329             t => t.to_string(),
1330         }
1331     });
1332 
1333     cfg.field_name(move |struct_, field| {
1334         match field {
1335             // Our stat *_nsec fields normally don't actually exist but are part
1336             // of a timeval struct
1337             s if s.ends_with("_nsec") && struct_.starts_with("stat") => {
1338                 s.replace("e_nsec", ".tv_nsec")
1339             }
1340             "u64" if struct_ == "epoll_event" => "data.u64".to_string(),
1341             // Field is named `type` in C but that is a Rust keyword,
1342             // so these fields are translated to `type_` in the bindings.
1343             "type_" if struct_ == "rtprio" => "type".to_string(),
1344             s => s.to_string(),
1345         }
1346     });
1347 
1348     cfg.skip_type(move |ty| {
1349         match ty {
1350             // sighandler_t is crazy across platforms
1351             "sighandler_t" => true,
1352 
1353             _ => false,
1354         }
1355     });
1356 
1357     cfg.skip_struct(move |ty| {
1358         if ty.starts_with("__c_anonymous_") {
1359             return true;
1360         }
1361         match ty {
1362             // FIXME: These are tested as part of the linux_fcntl tests since
1363             // there are header conflicts when including them with all the other
1364             // structs.
1365             "termios2" => true,
1366 
1367             _ => false,
1368         }
1369     });
1370 
1371     cfg.skip_signededness(move |c| {
1372         match c {
1373             "LARGE_INTEGER" | "float" | "double" => true,
1374             // uuid_t is a struct, not an integer.
1375             "uuid_t" => true,
1376             n if n.starts_with("pthread") => true,
1377             // sem_t is a struct or pointer
1378             "sem_t" => true,
1379             // mqd_t is a pointer on DragonFly
1380             "mqd_t" => true,
1381 
1382             _ => false,
1383         }
1384     });
1385 
1386     cfg.skip_const(move |name| {
1387         match name {
1388             "SIG_DFL" | "SIG_ERR" | "SIG_IGN" => true, // sighandler_t weirdness
1389 
1390             // weird signed extension or something like that?
1391             "MS_NOUSER" => true,
1392             "MS_RMT_MASK" => true, // updated in glibc 2.22 and musl 1.1.13
1393 
1394             // These are defined for Solaris 11, but the crate is tested on
1395             // illumos, where they are currently not defined
1396             "EADI" | "PORT_SOURCE_POSTWAIT" | "PORT_SOURCE_SIGNAL" | "PTHREAD_STACK_MIN" => true,
1397 
1398             _ => false,
1399         }
1400     });
1401 
1402     cfg.skip_fn(move |name| {
1403         // skip those that are manually verified
1404         match name {
1405             // FIXME: https://github.com/rust-lang/libc/issues/1272
1406             "execv" | "execve" | "execvp" | "fexecve" => true,
1407 
1408             "getrlimit" | "getrlimit64" |    // non-int in 1st arg
1409             "setrlimit" | "setrlimit64" |    // non-int in 1st arg
1410             "prlimit" | "prlimit64"        // non-int in 2nd arg
1411              => true,
1412 
1413             _ => false,
1414         }
1415     });
1416 
1417     cfg.skip_field_type(move |struct_, field| {
1418         // This is a weird union, don't check the type.
1419         (struct_ == "ifaddrs" && field == "ifa_ifu") ||
1420         // sighandler_t type is super weird
1421         (struct_ == "sigaction" && field == "sa_sigaction") ||
1422         // sigval is actually a union, but we pretend it's a struct
1423         (struct_ == "sigevent" && field == "sigev_value") ||
1424         // aio_buf is "volatile void*" and Rust doesn't understand volatile
1425         (struct_ == "aiocb" && field == "aio_buf")
1426     });
1427 
1428     cfg.skip_field(move |struct_, field| {
1429         // this is actually a union on linux, so we can't represent it well and
1430         // just insert some padding.
1431         (struct_ == "siginfo_t" && field == "_pad") ||
1432         // sigev_notify_thread_id is actually part of a sigev_un union
1433         (struct_ == "sigevent" && field == "sigev_notify_thread_id")
1434     });
1435 
1436     cfg.generate("../src/lib.rs", "main.rs");
1437 }
1438 
1439 fn test_wasi(target: &str) {
1440     assert!(target.contains("wasi"));
1441 
1442     let mut cfg = ctest_cfg();
1443     cfg.define("_GNU_SOURCE", None);
1444 
1445     headers! { cfg:
1446         "ctype.h",
1447         "dirent.h",
1448         "errno.h",
1449         "fcntl.h",
1450         "limits.h",
1451         "locale.h",
1452         "malloc.h",
1453         "poll.h",
1454         "sched.h",
1455         "stdbool.h",
1456         "stddef.h",
1457         "stdint.h",
1458         "stdio.h",
1459         "stdlib.h",
1460         "string.h",
1461         "sys/resource.h",
1462         "sys/select.h",
1463         "sys/socket.h",
1464         "sys/stat.h",
1465         "sys/times.h",
1466         "sys/types.h",
1467         "sys/uio.h",
1468         "sys/utsname.h",
1469         "sys/ioctl.h",
1470         "time.h",
1471         "unistd.h",
1472         "wasi/api.h",
1473         "wasi/libc.h",
1474         "wasi/libc-find-relpath.h",
1475         "wasi/libc-nocwd.h",
1476         "wchar.h",
1477     }
1478 
1479     cfg.type_name(move |ty, is_struct, is_union| match ty {
1480         "FILE" | "fd_set" | "DIR" => ty.to_string(),
1481         t if is_union => format!("union {}", t),
1482         t if t.starts_with("__wasi") && t.ends_with("_u") => format!("union {}", t),
1483         t if t.starts_with("__wasi") && is_struct => format!("struct {}", t),
1484         t if t.ends_with("_t") => t.to_string(),
1485         t if is_struct => format!("struct {}", t),
1486         t => t.to_string(),
1487     });
1488 
1489     cfg.field_name(move |_struct, field| {
1490         match field {
1491             // deal with fields as rust keywords
1492             "type_" => "type".to_string(),
1493             s => s.to_string(),
1494         }
1495     });
1496 
1497     // Looks like LLD doesn't merge duplicate imports, so if the Rust
1498     // code imports from a module and the C code also imports from a
1499     // module we end up with two imports of function pointers which
1500     // import the same thing but have different function pointers
1501     cfg.skip_fn_ptrcheck(|f| f.starts_with("__wasi"));
1502 
1503     // d_name is declared as a flexible array in WASI libc, so it
1504     // doesn't support sizeof.
1505     cfg.skip_field(|s, field| s == "dirent" && field == "d_name");
1506 
1507     // Currently Rust/clang disagree on function argument ABI, so skip these
1508     // tests. For more info see WebAssembly/tool-conventions#88
1509     cfg.skip_roundtrip(|_| true);
1510 
1511     cfg.generate("../src/lib.rs", "main.rs");
1512 }
1513 
1514 fn test_android(target: &str) {
1515     assert!(target.contains("android"));
1516     let target_pointer_width = match target {
1517         t if t.contains("aarch64") || t.contains("x86_64") => 64,
1518         t if t.contains("i686") || t.contains("arm") => 32,
1519         t => panic!("unsupported target: {}", t),
1520     };
1521     let x86 = target.contains("i686") || target.contains("x86_64");
1522 
1523     let mut cfg = ctest_cfg();
1524     cfg.define("_GNU_SOURCE", None);
1525 
1526     headers! { cfg:
1527                "arpa/inet.h",
1528                "ctype.h",
1529                "dirent.h",
1530                "dlfcn.h",
1531                "elf.h",
1532                "errno.h",
1533                "fcntl.h",
1534                "getopt.h",
1535                "grp.h",
1536                "ifaddrs.h",
1537                "libgen.h",
1538                "limits.h",
1539                "link.h",
1540                "locale.h",
1541                "malloc.h",
1542                "net/ethernet.h",
1543                "net/if.h",
1544                "net/if_arp.h",
1545                "net/route.h",
1546                "netdb.h",
1547                "netinet/in.h",
1548                "netinet/ip.h",
1549                "netinet/tcp.h",
1550                "netinet/udp.h",
1551                "netpacket/packet.h",
1552                "poll.h",
1553                "pthread.h",
1554                "pty.h",
1555                "pwd.h",
1556                "regex.h",
1557                "resolv.h",
1558                "sched.h",
1559                "semaphore.h",
1560                "signal.h",
1561                "stddef.h",
1562                "stdint.h",
1563                "stdio.h",
1564                "stdlib.h",
1565                "string.h",
1566                "sys/auxv.h",
1567                "sys/epoll.h",
1568                "sys/eventfd.h",
1569                "sys/file.h",
1570                "sys/fsuid.h",
1571                "sys/inotify.h",
1572                "sys/ioctl.h",
1573                "sys/mman.h",
1574                "sys/mount.h",
1575                "sys/personality.h",
1576                "sys/prctl.h",
1577                "sys/ptrace.h",
1578                "sys/random.h",
1579                "sys/reboot.h",
1580                "sys/resource.h",
1581                "sys/sendfile.h",
1582                "sys/signalfd.h",
1583                "sys/socket.h",
1584                "sys/stat.h",
1585                "sys/statvfs.h",
1586                "sys/swap.h",
1587                "sys/syscall.h",
1588                "sys/sysinfo.h",
1589                "sys/system_properties.h",
1590                "sys/time.h",
1591                "sys/timerfd.h",
1592                "sys/times.h",
1593                "sys/types.h",
1594                "sys/ucontext.h",
1595                "sys/uio.h",
1596                "sys/un.h",
1597                "sys/user.h",
1598                "sys/utsname.h",
1599                "sys/vfs.h",
1600                "sys/xattr.h",
1601                "sys/wait.h",
1602                "syslog.h",
1603                "termios.h",
1604                "time.h",
1605                "unistd.h",
1606                "utime.h",
1607                "utmp.h",
1608                "wchar.h",
1609                "xlocale.h",
1610                // time64_t is not defined for 64-bit targets If included it will
1611                // generate the error 'Your time_t is already 64-bit'
1612                [target_pointer_width == 32]: "time64.h",
1613                [x86]: "sys/reg.h",
1614     }
1615 
1616     // Include linux headers at the end:
1617     headers! { cfg:
1618                 "asm/mman.h",
1619                 "linux/auxvec.h",
1620                 "linux/dccp.h",
1621                 "linux/elf.h",
1622                 "linux/errqueue.h",
1623                 "linux/falloc.h",
1624                 "linux/filter.h",
1625                 "linux/futex.h",
1626                 "linux/fs.h",
1627                 "linux/genetlink.h",
1628                 "linux/if_alg.h",
1629                 "linux/if_addr.h",
1630                 "linux/if_ether.h",
1631                 "linux/if_link.h",
1632                 "linux/rtnetlink.h",
1633                 "linux/if_tun.h",
1634                 "linux/kexec.h",
1635                 "linux/magic.h",
1636                 "linux/membarrier.h",
1637                 "linux/memfd.h",
1638                 "linux/mempolicy.h",
1639                 "linux/module.h",
1640                 "linux/mount.h",
1641                 "linux/net_tstamp.h",
1642                 "linux/netfilter/nfnetlink.h",
1643                 "linux/netfilter/nfnetlink_log.h",
1644                 "linux/netfilter/nfnetlink_queue.h",
1645                 "linux/netfilter/nf_tables.h",
1646                 "linux/netfilter_ipv4.h",
1647                 "linux/netfilter_ipv6.h",
1648                 "linux/netfilter_ipv6/ip6_tables.h",
1649                 "linux/netlink.h",
1650                 "linux/quota.h",
1651                 "linux/reboot.h",
1652                 "linux/seccomp.h",
1653                 "linux/sched.h",
1654                 "linux/sockios.h",
1655                 "linux/uinput.h",
1656                 "linux/vm_sockets.h",
1657                 "linux/wait.h",
1658 
1659     }
1660 
1661     // Include Android-specific headers:
1662     headers! { cfg:
1663                 "android/set_abort_message.h"
1664     }
1665 
1666     cfg.type_name(move |ty, is_struct, is_union| {
1667         match ty {
1668             // Just pass all these through, no need for a "struct" prefix
1669             "FILE" | "fd_set" | "Dl_info" | "Elf32_Phdr" | "Elf64_Phdr" => ty.to_string(),
1670 
1671             t if is_union => format!("union {}", t),
1672 
1673             t if t.ends_with("_t") => t.to_string(),
1674 
1675             // sigval is a struct in Rust, but a union in C:
1676             "sigval" => format!("union sigval"),
1677 
1678             // put `struct` in front of all structs:.
1679             t if is_struct => format!("struct {}", t),
1680 
1681             t => t.to_string(),
1682         }
1683     });
1684 
1685     cfg.field_name(move |struct_, field| {
1686         match field {
1687             // Our stat *_nsec fields normally don't actually exist but are part
1688             // of a timeval struct
1689             s if s.ends_with("_nsec") && struct_.starts_with("stat") => s.to_string(),
1690             // FIXME: appears that `epoll_event.data` is an union
1691             "u64" if struct_ == "epoll_event" => "data.u64".to_string(),
1692             // The following structs have a field called `type` in C,
1693             // but `type` is a Rust keyword, so these fields are translated
1694             // to `type_` in Rust.
1695             "type_"
1696                 if struct_ == "input_event"
1697                     || struct_ == "input_mask"
1698                     || struct_ == "ff_effect" =>
1699             {
1700                 "type".to_string()
1701             }
1702 
1703             s => s.to_string(),
1704         }
1705     });
1706 
1707     cfg.skip_type(move |ty| {
1708         match ty {
1709             // FIXME: `sighandler_t` type is incorrect, see:
1710             // https://github.com/rust-lang/libc/issues/1359
1711             "sighandler_t" => true,
1712 
1713             // These are tested in the `linux_elf.rs` file.
1714             "Elf64_Phdr" | "Elf32_Phdr" => true,
1715             _ => false,
1716         }
1717     });
1718 
1719     cfg.skip_struct(move |ty| {
1720         if ty.starts_with("__c_anonymous_") {
1721             return true;
1722         }
1723         match ty {
1724             // These are tested as part of the linux_fcntl tests since there are
1725             // header conflicts when including them with all the other structs.
1726             "termios2" => true,
1727             // uc_sigmask and uc_sigmask64 of ucontext_t are an anonymous union
1728             "ucontext_t" => true,
1729             // 'private' type
1730             "prop_info" => true,
1731 
1732             // These are tested in the `linux_elf.rs` file.
1733             "Elf64_Phdr" | "Elf32_Phdr" => true,
1734 
1735             _ => false,
1736         }
1737     });
1738 
1739     cfg.skip_const(move |name| {
1740         match name {
1741             // The IPV6 constants are tested in the `linux_ipv6.rs` tests:
1742             | "IPV6_FLOWINFO"
1743             | "IPV6_FLOWLABEL_MGR"
1744             | "IPV6_FLOWINFO_SEND"
1745             | "IPV6_FLOWINFO_FLOWLABEL"
1746             | "IPV6_FLOWINFO_PRIORITY"
1747             // The F_ fnctl constants are tested in the `linux_fnctl.rs` tests:
1748             | "F_CANCELLK"
1749             | "F_ADD_SEALS"
1750             | "F_GET_SEALS"
1751             | "F_SEAL_SEAL"
1752             | "F_SEAL_SHRINK"
1753             | "F_SEAL_GROW"
1754             | "F_SEAL_WRITE" => true,
1755 
1756             // The `ARPHRD_CAN` is tested in the `linux_if_arp.rs` tests:
1757             "ARPHRD_CAN" => true,
1758 
1759             // FIXME: deprecated: not available in any header
1760             // See: https://github.com/rust-lang/libc/issues/1356
1761             "ENOATTR" => true,
1762 
1763             // FIXME: still necessary?
1764             "SIG_DFL" | "SIG_ERR" | "SIG_IGN" => true, // sighandler_t weirdness
1765             // FIXME: deprecated - removed in glibc 2.26
1766             "SIGUNUSED" => true,
1767 
1768             // Needs a newer Android SDK for the definition
1769             "P_PIDFD" => true,
1770 
1771             // Requires Linux kernel 5.6
1772             "VMADDR_CID_LOCAL" => true,
1773 
1774             // FIXME: conflicts with standard C headers and is tested in
1775             // `linux_termios.rs` below:
1776             "BOTHER" => true,
1777             "IBSHIFT" => true,
1778             "TCGETS2" | "TCSETS2" | "TCSETSW2" | "TCSETSF2" => true,
1779 
1780             // is a private value for kernel usage normally
1781             "FUSE_SUPER_MAGIC" => true,
1782             // linux 5.12 min
1783             "MPOL_F_NUMA_BALANCING" => true,
1784 
1785             // GRND_INSECURE was added in platform-tools-30.0.0
1786             "GRND_INSECURE" => true,
1787 
1788             // kernel 5.10 minimum required
1789             "MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_RSEQ" | "MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ" => true,
1790 
1791             _ => false,
1792         }
1793     });
1794 
1795     cfg.skip_fn(move |name| {
1796         // skip those that are manually verified
1797         match name {
1798             // FIXME: https://github.com/rust-lang/libc/issues/1272
1799             "execv" | "execve" | "execvp" | "execvpe" | "fexecve" => true,
1800 
1801             // There are two versions of the sterror_r function, see
1802             //
1803             // https://linux.die.net/man/3/strerror_r
1804             //
1805             // An XSI-compliant version provided if:
1806             //
1807             // (_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && ! _GNU_SOURCE
1808             //
1809             // and a GNU specific version provided if _GNU_SOURCE is defined.
1810             //
1811             // libc provides bindings for the XSI-compliant version, which is
1812             // preferred for portable applications.
1813             //
1814             // We skip the test here since here _GNU_SOURCE is defined, and
1815             // test the XSI version below.
1816             "strerror_r" => true,
1817             "reallocarray" => true,
1818             "__system_property_wait" => true,
1819 
1820             // Added in API level 30, but tests use level 28.
1821             "mlock2" => true,
1822 
1823             // Added in glibc 2.25.
1824             "getentropy" => true,
1825 
1826             // Added in API level 28, but some tests use level 24.
1827             "getrandom" => true,
1828 
1829             // Added in API level 28, but some tests use level 24.
1830             "syncfs" => true,
1831 
1832             _ => false,
1833         }
1834     });
1835 
1836     cfg.skip_field_type(move |struct_, field| {
1837         // This is a weird union, don't check the type.
1838         (struct_ == "ifaddrs" && field == "ifa_ifu") ||
1839         // sigval is actually a union, but we pretend it's a struct
1840         (struct_ == "sigevent" && field == "sigev_value") ||
1841         // this one is an anonymous union
1842         (struct_ == "ff_effect" && field == "u") ||
1843         // FIXME: `sa_sigaction` has type `sighandler_t` but that type is
1844         // incorrect, see: https://github.com/rust-lang/libc/issues/1359
1845         (struct_ == "sigaction" && field == "sa_sigaction") ||
1846         // signalfd had SIGSYS fields added in Android 4.19, but CI does not have that version yet.
1847         (struct_ == "signalfd_siginfo" && field == "ssi_call_addr")
1848     });
1849 
1850     cfg.skip_field(move |struct_, field| {
1851         // this is actually a union on linux, so we can't represent it well and
1852         // just insert some padding.
1853         (struct_ == "siginfo_t" && field == "_pad") ||
1854         // FIXME: `sa_sigaction` has type `sighandler_t` but that type is
1855         // incorrect, see: https://github.com/rust-lang/libc/issues/1359
1856         (struct_ == "sigaction" && field == "sa_sigaction") ||
1857         // sigev_notify_thread_id is actually part of a sigev_un union
1858         (struct_ == "sigevent" && field == "sigev_notify_thread_id") ||
1859         // signalfd had SIGSYS fields added in Android 4.19, but CI does not have that version yet.
1860         (struct_ == "signalfd_siginfo" && (field == "ssi_syscall" ||
1861                                            field == "ssi_call_addr" ||
1862                                            field == "ssi_arch"))
1863     });
1864 
1865     cfg.skip_field(|struct_, field| {
1866         match (struct_, field) {
1867             // conflicting with `p_type` macro from <resolve.h>.
1868             ("Elf32_Phdr", "p_type") => true,
1869             ("Elf64_Phdr", "p_type") => true,
1870 
1871             // this is actually a union on linux, so we can't represent it well and
1872             // just insert some padding.
1873             ("siginfo_t", "_pad") => true,
1874 
1875             _ => false,
1876         }
1877     });
1878 
1879     cfg.generate("../src/lib.rs", "main.rs");
1880 
1881     test_linux_like_apis(target);
1882 }
1883 
1884 fn test_freebsd(target: &str) {
1885     assert!(target.contains("freebsd"));
1886     let mut cfg = ctest_cfg();
1887 
1888     let freebsd_ver = which_freebsd();
1889 
1890     match freebsd_ver {
1891         Some(12) => cfg.cfg("freebsd12", None),
1892         Some(13) => cfg.cfg("freebsd13", None),
1893         Some(14) => cfg.cfg("freebsd14", None),
1894         _ => &mut cfg,
1895     };
1896 
1897     // For sched linux compat fn
1898     cfg.define("_WITH_CPU_SET_T", None);
1899     // Required for `getline`:
1900     cfg.define("_WITH_GETLINE", None);
1901     // Required for making freebsd11_stat available in the headers
1902     cfg.define("_WANT_FREEBSD11_STAT", None);
1903 
1904     let freebsd13 = match freebsd_ver {
1905         Some(n) if n >= 13 => true,
1906         _ => false,
1907     };
1908 
1909     headers! { cfg:
1910                 "aio.h",
1911                 "arpa/inet.h",
1912                 "bsm/audit.h",
1913                 "ctype.h",
1914                 "dirent.h",
1915                 "dlfcn.h",
1916                 "elf.h",
1917                 "errno.h",
1918                 "execinfo.h",
1919                 "fcntl.h",
1920                 "getopt.h",
1921                 "glob.h",
1922                 "grp.h",
1923                 "iconv.h",
1924                 "ifaddrs.h",
1925                 "langinfo.h",
1926                 "libgen.h",
1927                 "libutil.h",
1928                 "limits.h",
1929                 "link.h",
1930                 "locale.h",
1931                 "machine/elf.h",
1932                 "machine/reg.h",
1933                 "malloc_np.h",
1934                 "memstat.h",
1935                 "mqueue.h",
1936                 "net/bpf.h",
1937                 "net/if.h",
1938                 "net/if_arp.h",
1939                 "net/if_dl.h",
1940                 "net/if_mib.h",
1941                 "net/route.h",
1942                 "netdb.h",
1943                 "netinet/ip.h",
1944                 "netinet/in.h",
1945                 "netinet/sctp.h",
1946                 "netinet/tcp.h",
1947                 "netinet/udp.h",
1948                 "poll.h",
1949                 "pthread.h",
1950                 "pthread_np.h",
1951                 "pwd.h",
1952                 "regex.h",
1953                 "resolv.h",
1954                 "sched.h",
1955                 "semaphore.h",
1956                 "signal.h",
1957                 "spawn.h",
1958                 "stddef.h",
1959                 "stdint.h",
1960                 "stdio.h",
1961                 "stdlib.h",
1962                 "string.h",
1963                 "sys/capsicum.h",
1964                 "sys/auxv.h",
1965                 "sys/cpuset.h",
1966                 "sys/domainset.h",
1967                 "sys/eui64.h",
1968                 "sys/event.h",
1969                 [freebsd13]:"sys/eventfd.h",
1970                 "sys/extattr.h",
1971                 "sys/file.h",
1972                 "sys/ioctl.h",
1973                 "sys/ipc.h",
1974                 "sys/jail.h",
1975                 "sys/mman.h",
1976                 "sys/mount.h",
1977                 "sys/msg.h",
1978                 "sys/procctl.h",
1979                 "sys/procdesc.h",
1980                 "sys/ptrace.h",
1981                 "sys/queue.h",
1982                 "sys/random.h",
1983                 "sys/resource.h",
1984                 "sys/rtprio.h",
1985                 "sys/sem.h",
1986                 "sys/shm.h",
1987                 "sys/socket.h",
1988                 "sys/stat.h",
1989                 "sys/statvfs.h",
1990                 "sys/sysctl.h",
1991                 "sys/thr.h",
1992                 "sys/time.h",
1993                 "sys/times.h",
1994                 "sys/timex.h",
1995                 "sys/types.h",
1996                 "sys/proc.h",
1997                 "kvm.h", // must be after "sys/types.h"
1998                 "sys/ucontext.h",
1999                 "sys/uio.h",
2000                 "sys/ktrace.h",
2001                 "sys/umtx.h",
2002                 "sys/un.h",
2003                 "sys/user.h",
2004                 "sys/utsname.h",
2005                 "sys/uuid.h",
2006                 "sys/vmmeter.h",
2007                 "sys/wait.h",
2008                 "libprocstat.h",
2009                 "devstat.h",
2010                 "syslog.h",
2011                 "termios.h",
2012                 "time.h",
2013                 "ufs/ufs/quota.h",
2014                 "unistd.h",
2015                 "utime.h",
2016                 "utmpx.h",
2017                 "wchar.h",
2018     }
2019 
2020     cfg.type_name(move |ty, is_struct, is_union| {
2021         match ty {
2022             // Just pass all these through, no need for a "struct" prefix
2023             "FILE"
2024             | "fd_set"
2025             | "Dl_info"
2026             | "DIR"
2027             | "Elf32_Phdr"
2028             | "Elf64_Phdr"
2029             | "Elf32_Auxinfo"
2030             | "Elf64_Auxinfo"
2031             | "devstat_select_mode"
2032             | "devstat_support_flags"
2033             | "devstat_type_flags"
2034             | "devstat_match_flags"
2035             | "devstat_priority" => ty.to_string(),
2036 
2037             // FIXME: https://github.com/rust-lang/libc/issues/1273
2038             "sighandler_t" => "sig_t".to_string(),
2039 
2040             t if is_union => format!("union {}", t),
2041 
2042             t if t.ends_with("_t") => t.to_string(),
2043 
2044             // sigval is a struct in Rust, but a union in C:
2045             "sigval" => format!("union sigval"),
2046 
2047             // put `struct` in front of all structs:.
2048             t if is_struct => format!("struct {}", t),
2049 
2050             t => t.to_string(),
2051         }
2052     });
2053 
2054     cfg.field_name(move |struct_, field| {
2055         match field {
2056             // Our stat *_nsec fields normally don't actually exist but are part
2057             // of a timeval struct
2058             s if s.ends_with("_nsec") && struct_.starts_with("stat") => {
2059                 s.replace("e_nsec", ".tv_nsec")
2060             }
2061             // Field is named `type` in C but that is a Rust keyword,
2062             // so these fields are translated to `type_` in the bindings.
2063             "type_" if struct_ == "rtprio" => "type".to_string(),
2064             "type_" if struct_ == "sockstat" => "type".to_string(),
2065             "type_" if struct_ == "devstat_match_table" => "type".to_string(),
2066             s => s.to_string(),
2067         }
2068     });
2069 
2070     cfg.skip_const(move |name| {
2071         match name {
2072             // These constants were introduced in FreeBSD 13:
2073             "F_ADD_SEALS" | "F_GET_SEALS" | "F_SEAL_SEAL" | "F_SEAL_SHRINK" | "F_SEAL_GROW"
2074             | "F_SEAL_WRITE"
2075                 if Some(13) > freebsd_ver =>
2076             {
2077                 true
2078             }
2079 
2080             // These constants were introduced in FreeBSD 13:
2081             "EFD_CLOEXEC" | "EFD_NONBLOCK" | "EFD_SEMAPHORE" if Some(13) > freebsd_ver => true,
2082 
2083             // These constants were introduced in FreeBSD 12:
2084             "AT_RESOLVE_BENEATH" | "O_RESOLVE_BENEATH" if Some(12) > freebsd_ver => true,
2085 
2086             // These constants were introduced in FreeBSD 13:
2087             "O_DSYNC" | "O_PATH" | "O_EMPTY_PATH" | "AT_EMPTY_PATH" if Some(13) > freebsd_ver => {
2088                 true
2089             }
2090 
2091             // These aliases were introduced in FreeBSD 13:
2092             // (note however that the constants themselves work on any version)
2093             "CLOCK_BOOTTIME" | "CLOCK_REALTIME_COARSE" | "CLOCK_MONOTONIC_COARSE"
2094                 if Some(13) > freebsd_ver =>
2095             {
2096                 true
2097             }
2098 
2099             // FIXME: These are deprecated - remove in a couple of releases.
2100             // These constants were removed in FreeBSD 11 (svn r273250) but will
2101             // still be accepted and ignored at runtime.
2102             "MAP_RENAME" | "MAP_NORESERVE" => true,
2103 
2104             // FIXME: These are deprecated - remove in a couple of releases.
2105             // These constants were removed in FreeBSD 11 (svn r262489),
2106             // and they've never had any legitimate use outside of the
2107             // base system anyway.
2108             "CTL_MAXID" | "KERN_MAXID" | "HW_MAXID" | "USER_MAXID" => true,
2109 
2110             // FIXME: This is deprecated - remove in a couple of releases.
2111             // This was removed in FreeBSD 14 (git 1b4701fe1e8) and never
2112             // should've been used anywhere anyway.
2113             "TDF_UNUSED23" => true,
2114 
2115             // FIXME: These are deprecated - remove in a couple of releases.
2116             // These symbols are not stable across OS-versions.  They were
2117             // changed for FreeBSD 14 in git revisions b62848b0c3f and
2118             // 2cf7870864e.
2119             "PRI_MAX_ITHD" | "PRI_MIN_REALTIME" | "PRI_MAX_REALTIME" | "PRI_MIN_KERN"
2120             | "PRI_MAX_KERN" | "PSWP" | "PVM" | "PINOD" | "PRIBIO" | "PVFS" | "PZERO" | "PSOCK"
2121             | "PWAIT" | "PLOCK" | "PPAUSE" | "PRI_MIN_TIMESHARE" | "PUSER" | "PI_AV" | "PI_NET"
2122             | "PI_DISK" | "PI_TTY" | "PI_DULL" | "PI_SOFT" => true,
2123 
2124             // This symbol changed in FreeBSD 14 (git 051e7d78b03), but the new
2125             // version should be safe to use on older releases.
2126             "IFCAP_CANTCHANGE" => true,
2127 
2128             // These were removed in FreeBSD 14 (git c6d31b8306e)
2129             "TDF_ASTPENDING" | "TDF_NEEDSUSPCHK" | "TDF_NEEDRESCHED" | "TDF_NEEDSIGCHK"
2130             | "TDF_ALRMPEND" | "TDF_PROFPEND" | "TDF_MACPEND" => true,
2131 
2132             // This constant was removed in FreeBSD 13 (svn r363622), and never
2133             // had any legitimate use outside of the base system anyway.
2134             "CTL_P1003_1B_MAXID" => true,
2135 
2136             // This was renamed in FreeBSD 12.2 and 13 (r352486).
2137             "CTL_UNSPEC" | "CTL_SYSCTL" => true,
2138 
2139             // This was renamed in FreeBSD 12.2 and 13 (r350749).
2140             "IPPROTO_SEP" | "IPPROTO_DCCP" => true,
2141 
2142             // This was changed to 96(0x60) in FreeBSD 13:
2143             // https://github.com/freebsd/freebsd/
2144             // commit/06b00ceaa914a3907e4e27bad924f44612bae1d7
2145             "MINCORE_SUPER" if Some(13) <= freebsd_ver => true,
2146 
2147             // Added in FreeBSD 13.0 (r356667)
2148             "GRND_INSECURE" if Some(13) > freebsd_ver => true,
2149 
2150             // Added in FreeBSD 13.0 (r349609)
2151             "PROC_PROTMAX_CTL"
2152             | "PROC_PROTMAX_STATUS"
2153             | "PROC_PROTMAX_FORCE_ENABLE"
2154             | "PROC_PROTMAX_FORCE_DISABLE"
2155             | "PROC_PROTMAX_NOFORCE"
2156             | "PROC_PROTMAX_ACTIVE"
2157             | "PROC_NO_NEW_PRIVS_CTL"
2158             | "PROC_NO_NEW_PRIVS_STATUS"
2159             | "PROC_NO_NEW_PRIVS_ENABLE"
2160             | "PROC_NO_NEW_PRIVS_DISABLE"
2161             | "PROC_WXMAP_CTL"
2162             | "PROC_WXMAP_STATUS"
2163             | "PROC_WX_MAPPINGS_PERMIT"
2164             | "PROC_WX_MAPPINGS_DISALLOW_EXEC"
2165             | "PROC_WXORX_ENFORCE"
2166                 if Some(13) > freebsd_ver =>
2167             {
2168                 true
2169             }
2170 
2171             // Added in in FreeBSD 13.0 (r367776 and r367287)
2172             "SCM_CREDS2" | "LOCAL_CREDS_PERSISTENT" if Some(13) > freebsd_ver => true,
2173 
2174             // Added in FreeBSD 14
2175             "SPACECTL_DEALLOC" if Some(14) > freebsd_ver => true,
2176 
2177             // Added in FreeBSD 13.
2178             "KERN_PROC_SIGFASTBLK"
2179             | "USER_LOCALBASE"
2180             | "TDP_SIGFASTBLOCK"
2181             | "TDP_UIOHELD"
2182             | "TDP_SIGFASTPENDING"
2183             | "TDP2_COMPAT32RB"
2184             | "P2_PROTMAX_ENABLE"
2185             | "P2_PROTMAX_DISABLE"
2186             | "CTLFLAG_NEEDGIANT"
2187             | "CTL_SYSCTL_NEXTNOSKIP"
2188                 if Some(13) > freebsd_ver =>
2189             {
2190                 true
2191             }
2192 
2193             // Added in freebsd 14.
2194             "IFCAP_MEXTPG" if Some(14) > freebsd_ver => true,
2195             // Added in freebsd 13.
2196             "IFF_KNOWSEPOCH" | "IFCAP_TXTLS4" | "IFCAP_TXTLS6" | "IFCAP_VXLAN_HWCSUM"
2197             | "IFCAP_VXLAN_HWTSO" | "IFCAP_TXTLS_RTLMT" | "IFCAP_TXTLS"
2198                 if Some(13) > freebsd_ver =>
2199             {
2200                 true
2201             }
2202             // Added in FreeBSD 13.
2203             "PS_FST_TYPE_EVENTFD" if Some(13) > freebsd_ver => true,
2204 
2205             // Added in FreeBSD 14.
2206             "MNT_RECURSE" | "MNT_DEFERRED" if Some(14) > freebsd_ver => true,
2207 
2208             // Added in FreeBSD 13.
2209             "MNT_EXTLS" | "MNT_EXTLSCERT" | "MNT_EXTLSCERTUSER" | "MNT_NOCOVER"
2210             | "MNT_EMPTYDIR"
2211                 if Some(13) > freebsd_ver =>
2212             {
2213                 true
2214             }
2215 
2216             // Added in FreeBSD 14.
2217             "PT_COREDUMP" | "PC_ALL" | "PC_COMPRESS" | "PT_GETREGSET" | "PT_SETREGSET"
2218             | "PT_SC_REMOTE"
2219                 if Some(14) > freebsd_ver =>
2220             {
2221                 true
2222             }
2223 
2224             // Added in FreeBSD 14.
2225             "F_KINFO" => true, // FIXME: depends how frequent freebsd 14 is updated on CI, this addition went this week only.
2226             "SHM_RENAME_NOREPLACE"
2227             | "SHM_RENAME_EXCHANGE"
2228             | "SHM_LARGEPAGE_ALLOC_DEFAULT"
2229             | "SHM_LARGEPAGE_ALLOC_NOWAIT"
2230             | "SHM_LARGEPAGE_ALLOC_HARD"
2231             | "MFD_CLOEXEC"
2232             | "MFD_ALLOW_SEALING"
2233             | "MFD_HUGETLB"
2234             | "MFD_HUGE_MASK"
2235             | "MFD_HUGE_64KB"
2236             | "MFD_HUGE_512KB"
2237             | "MFD_HUGE_1MB"
2238             | "MFD_HUGE_2MB"
2239             | "MFD_HUGE_8MB"
2240             | "MFD_HUGE_16MB"
2241             | "MFD_HUGE_32MB"
2242             | "MFD_HUGE_256MB"
2243             | "MFD_HUGE_512MB"
2244             | "MFD_HUGE_1GB"
2245             | "MFD_HUGE_2GB"
2246             | "MFD_HUGE_16GB"
2247                 if Some(13) > freebsd_ver =>
2248             {
2249                 true
2250             }
2251 
2252             // Flags introduced in FreeBSD 14.
2253             "TCP_MAXUNACKTIME"
2254             | "TCP_MAXPEAKRATE"
2255             | "TCP_IDLE_REDUCE"
2256             | "TCP_REMOTE_UDP_ENCAPS_PORT"
2257             | "TCP_DELACK"
2258             | "TCP_FIN_IS_RST"
2259             | "TCP_LOG_LIMIT"
2260             | "TCP_SHARED_CWND_ALLOWED"
2261             | "TCP_PROC_ACCOUNTING"
2262             | "TCP_USE_CMP_ACKS"
2263             | "TCP_PERF_INFO"
2264             | "TCP_LRD"
2265                 if Some(14) > freebsd_ver =>
2266             {
2267                 true
2268             }
2269 
2270             // Added in FreeBSD 14
2271             "LIO_READV" | "LIO_WRITEV" | "LIO_VECTORED" if Some(14) > freebsd_ver => true,
2272 
2273             // Added in FreeBSD 13
2274             "FIOSSHMLPGCNF" if Some(13) > freebsd_ver => true,
2275 
2276             // Added in FreeBSD 14
2277             "IFCAP_NV" if Some(14) > freebsd_ver => true,
2278 
2279             // FIXME: Removed in https://reviews.freebsd.org/D38574 and https://reviews.freebsd.org/D38822
2280             // We maybe should deprecate them once a stable release ships them.
2281             "IP_BINDMULTI" | "IP_RSS_LISTEN_BUCKET" => true,
2282 
2283             // FIXME: Removed in https://reviews.freebsd.org/D39127.
2284             "KERN_VNODE" => true,
2285 
2286             // Added in FreeBSD 14
2287             "EV_KEEPUDATA" if Some(14) > freebsd_ver => true,
2288 
2289             _ => false,
2290         }
2291     });
2292 
2293     cfg.skip_type(move |ty| {
2294         match ty {
2295             // the struct "__kvm" is quite tricky to bind so since we only use a pointer to it
2296             // for now, it doesn't matter too much...
2297             "kvm_t" => true,
2298 
2299             _ => false,
2300         }
2301     });
2302 
2303     cfg.skip_struct(move |ty| {
2304         if ty.starts_with("__c_anonymous_") {
2305             return true;
2306         }
2307         match ty {
2308             // `procstat` is a private struct
2309             "procstat" => true,
2310 
2311             // `spacectl_range` was introduced in FreeBSD 14
2312             "spacectl_range" if Some(14) > freebsd_ver => true,
2313 
2314             // `ptrace_coredump` introduced in FreeBSD 14.
2315             "ptrace_coredump" if Some(14) > freebsd_ver => true,
2316             // `ptrace_sc_remote` introduced in FreeBSD 14.
2317             "ptrace_sc_remote" if Some(14) > freebsd_ver => true,
2318 
2319             // `sockcred2` is not available in FreeBSD 12.
2320             "sockcred2" if Some(13) > freebsd_ver => true,
2321             // `shm_largepage_conf` was introduced in FreeBSD 13.
2322             "shm_largepage_conf" if Some(13) > freebsd_ver => true,
2323 
2324             // Those are private types
2325             "memory_type" => true,
2326             "memory_type_list" => true,
2327             "pidfh" => true,
2328             "sctp_gen_error_cause"
2329             | "sctp_error_missing_param"
2330             | "sctp_remote_error"
2331             | "sctp_assoc_change"
2332             | "sctp_send_failed_event"
2333             | "sctp_stream_reset_event" => true,
2334 
2335             _ => false,
2336         }
2337     });
2338 
2339     cfg.skip_fn(move |name| {
2340         // skip those that are manually verified
2341         match name {
2342             // FIXME: https://github.com/rust-lang/libc/issues/1272
2343             "execv" | "execve" | "execvp" | "execvpe" | "fexecve" => true,
2344 
2345             // The `uname` function in the `utsname.h` FreeBSD header is a C
2346             // inline function (has no symbol) that calls the `__xuname` symbol.
2347             // Therefore the function pointer comparison does not make sense for it.
2348             "uname" => true,
2349 
2350             // FIXME: Our API is unsound. The Rust API allows aliasing
2351             // pointers, but the C API requires pointers not to alias.
2352             // We should probably be at least using `&`/`&mut` here, see:
2353             // https://github.com/gnzlbg/ctest/issues/68
2354             "lio_listio" => true,
2355 
2356             // Those are introduced in FreeBSD 12.
2357             "clock_nanosleep" | "getrandom" | "elf_aux_info" | "setproctitle_fast"
2358             | "timingsafe_bcmp" | "timingsafe_memcmp"
2359                 if Some(12) > freebsd_ver =>
2360             {
2361                 true
2362             }
2363 
2364             // Those are introduced in FreeBSD 13.
2365             "memfd_create"
2366             | "shm_create_largepage"
2367             | "shm_rename"
2368             | "getentropy"
2369             | "eventfd"
2370             | "SOCKCRED2SIZE"
2371             | "getlocalbase"
2372             | "aio_readv"
2373             | "aio_writev"
2374             | "copy_file_range"
2375                 if Some(13) > freebsd_ver =>
2376             {
2377                 true
2378             }
2379 
2380             // Those are introduced in FreeBSD 14.
2381             "sched_getaffinity" | "sched_setaffinity" | "sched_getcpu" | "fspacectl"
2382                 if Some(14) > freebsd_ver =>
2383             {
2384                 true
2385             }
2386 
2387             _ => false,
2388         }
2389     });
2390 
2391     cfg.volatile_item(|i| {
2392         use ctest::VolatileItemKind::*;
2393         match i {
2394             // aio_buf is a volatile void** but since we cannot express that in
2395             // Rust types, we have to explicitly tell the checker about it here:
2396             StructField(ref n, ref f) if n == "aiocb" && f == "aio_buf" => true,
2397             _ => false,
2398         }
2399     });
2400 
2401     cfg.skip_field(move |struct_, field| {
2402         match (struct_, field) {
2403             // FIXME: `sa_sigaction` has type `sighandler_t` but that type is
2404             // incorrect, see: https://github.com/rust-lang/libc/issues/1359
2405             ("sigaction", "sa_sigaction") => true,
2406 
2407             // conflicting with `p_type` macro from <resolve.h>.
2408             ("Elf32_Phdr", "p_type") => true,
2409             ("Elf64_Phdr", "p_type") => true,
2410 
2411             // not available until FreeBSD 12, and is an anonymous union there.
2412             ("xucred", "cr_pid__c_anonymous_union") => true,
2413 
2414             // m_owner field is a volatile __lwpid_t
2415             ("umutex", "m_owner") => true,
2416             // c_has_waiters field is a volatile int32_t
2417             ("ucond", "c_has_waiters") => true,
2418             // is PATH_MAX long but tests can't accept multi array as equivalent.
2419             ("kinfo_vmentry", "kve_path") => true,
2420 
2421             // a_un field is a union
2422             ("Elf32_Auxinfo", "a_un") => true,
2423             ("Elf64_Auxinfo", "a_un") => true,
2424 
2425             // union fields
2426             ("if_data", "__ifi_epoch") => true,
2427             ("if_data", "__ifi_lastchange") => true,
2428             ("ifreq", "ifr_ifru") => true,
2429             ("ifconf", "ifc_ifcu") => true,
2430 
2431             // anonymous struct
2432             ("devstat", "dev_links") => true,
2433 
2434             // FIXME: structs too complicated to bind for now...
2435             ("kinfo_proc", "ki_paddr") => true,
2436             ("kinfo_proc", "ki_addr") => true,
2437             ("kinfo_proc", "ki_tracep") => true,
2438             ("kinfo_proc", "ki_textvp") => true,
2439             ("kinfo_proc", "ki_fd") => true,
2440             ("kinfo_proc", "ki_vmspace") => true,
2441             ("kinfo_proc", "ki_pcb") => true,
2442             ("kinfo_proc", "ki_tdaddr") => true,
2443             ("kinfo_proc", "ki_pd") => true,
2444 
2445             // Anonymous type.
2446             ("filestat", "next") => true,
2447 
2448             // We ignore this field because we needed to use a hack in order to make rust 1.19
2449             // happy...
2450             ("kinfo_proc", "ki_sparestrings") => true,
2451 
2452             // `__sem_base` is a private struct field
2453             ("semid_ds", "__sem_base") => true,
2454 
2455             // `snap_time` is a `long double`, but it's a nightmare to bind correctly in rust
2456             // for the moment, so it's a best effort thing...
2457             ("statinfo", "snap_time") => true,
2458             ("sctp_sndrcvinfo", "__reserve_pad") => true,
2459             ("sctp_extrcvinfo", "__reserve_pad") => true,
2460             // `tcp_snd_wscale` and `tcp_rcv_wscale` are bitfields
2461             ("tcp_info", "tcp_snd_wscale") => true,
2462             ("tcp_info", "tcp_rcv_wscale") => true,
2463 
2464             _ => false,
2465         }
2466     });
2467 
2468     cfg.generate("../src/lib.rs", "main.rs");
2469 }
2470 
2471 fn test_emscripten(target: &str) {
2472     assert!(target.contains("emscripten"));
2473 
2474     let mut cfg = ctest_cfg();
2475     cfg.define("_GNU_SOURCE", None); // FIXME: ??
2476 
2477     headers! { cfg:
2478                "aio.h",
2479                "ctype.h",
2480                "dirent.h",
2481                "dlfcn.h",
2482                "errno.h",
2483                "fcntl.h",
2484                "glob.h",
2485                "grp.h",
2486                "ifaddrs.h",
2487                "langinfo.h",
2488                "limits.h",
2489                "locale.h",
2490                "malloc.h",
2491                "mntent.h",
2492                "mqueue.h",
2493                "net/ethernet.h",
2494                "net/if.h",
2495                "net/if_arp.h",
2496                "net/route.h",
2497                "netdb.h",
2498                "netinet/in.h",
2499                "netinet/ip.h",
2500                "netinet/tcp.h",
2501                "netinet/udp.h",
2502                "netpacket/packet.h",
2503                "poll.h",
2504                "pthread.h",
2505                "pty.h",
2506                "pwd.h",
2507                "resolv.h",
2508                "sched.h",
2509                "sched.h",
2510                "semaphore.h",
2511                "shadow.h",
2512                "signal.h",
2513                "stddef.h",
2514                "stdint.h",
2515                "stdio.h",
2516                "stdlib.h",
2517                "string.h",
2518                "sys/epoll.h",
2519                "sys/eventfd.h",
2520                "sys/file.h",
2521                "sys/ioctl.h",
2522                "sys/ipc.h",
2523                "sys/mman.h",
2524                "sys/mount.h",
2525                "sys/msg.h",
2526                "sys/personality.h",
2527                "sys/prctl.h",
2528                "sys/ptrace.h",
2529                "sys/quota.h",
2530                "sys/reboot.h",
2531                "sys/resource.h",
2532                "sys/sem.h",
2533                "sys/shm.h",
2534                "sys/signalfd.h",
2535                "sys/socket.h",
2536                "sys/stat.h",
2537                "sys/statvfs.h",
2538                "sys/swap.h",
2539                "sys/syscall.h",
2540                "sys/sysctl.h",
2541                "sys/sysinfo.h",
2542                "sys/time.h",
2543                "sys/timerfd.h",
2544                "sys/times.h",
2545                "sys/types.h",
2546                "sys/uio.h",
2547                "sys/un.h",
2548                "sys/user.h",
2549                "sys/utsname.h",
2550                "sys/vfs.h",
2551                "sys/wait.h",
2552                "sys/xattr.h",
2553                "syslog.h",
2554                "termios.h",
2555                "time.h",
2556                "ucontext.h",
2557                "unistd.h",
2558                "utime.h",
2559                "utmp.h",
2560                "utmpx.h",
2561                "wchar.h",
2562     }
2563 
2564     cfg.type_name(move |ty, is_struct, is_union| {
2565         match ty {
2566             // Just pass all these through, no need for a "struct" prefix
2567             "FILE" | "fd_set" | "Dl_info" | "DIR" => ty.to_string(),
2568 
2569             "os_unfair_lock" => "struct os_unfair_lock_s".to_string(),
2570 
2571             t if is_union => format!("union {}", t),
2572 
2573             t if t.ends_with("_t") => t.to_string(),
2574 
2575             // put `struct` in front of all structs:.
2576             t if is_struct => format!("struct {}", t),
2577 
2578             t => t.to_string(),
2579         }
2580     });
2581 
2582     cfg.field_name(move |struct_, field| {
2583         match field {
2584             // Our stat *_nsec fields normally don't actually exist but are part
2585             // of a timeval struct
2586             s if s.ends_with("_nsec") && struct_.starts_with("stat") => {
2587                 s.replace("e_nsec", ".tv_nsec")
2588             }
2589             // FIXME: appears that `epoll_event.data` is an union
2590             "u64" if struct_ == "epoll_event" => "data.u64".to_string(),
2591             s => s.to_string(),
2592         }
2593     });
2594 
2595     cfg.skip_type(move |ty| {
2596         match ty {
2597             // sighandler_t is crazy across platforms
2598             // FIXME: is this necessary?
2599             "sighandler_t" => true,
2600 
2601             // FIXME: The size has been changed due to musl's time64
2602             "time_t" => true,
2603 
2604             _ => false,
2605         }
2606     });
2607 
2608     cfg.skip_struct(move |ty| {
2609         match ty {
2610             // This is actually a union, not a struct
2611             // FIXME: is this necessary?
2612             "sigval" => true,
2613 
2614             // FIXME: It was removed in
2615             // emscripten-core/emscripten@953e414
2616             "pthread_mutexattr_t" => true,
2617 
2618             // FIXME: Investigate why the test fails.
2619             // Skip for now to unblock CI.
2620             "pthread_condattr_t" => true,
2621 
2622             // FIXME: The size has been changed when upgraded to musl 1.2.2
2623             "pthread_mutex_t" => true,
2624 
2625             // FIXME: Lowered from 16 to 8 bytes in
2626             // llvm/llvm-project@d1a96e9
2627             "max_align_t" => true,
2628 
2629             // FIXME: The size has been changed due to time64
2630             "utimbuf" | "timeval" | "timespec" | "rusage" | "itimerval" | "sched_param"
2631             | "stat" | "stat64" | "shmid_ds" | "msqid_ds" => true,
2632 
2633             _ => false,
2634         }
2635     });
2636 
2637     cfg.skip_fn(move |name| {
2638         match name {
2639             // Emscripten does not support fork/exec/wait or any kind of multi-process support
2640             // https://github.com/emscripten-core/emscripten/blob/3.1.30/tools/system_libs.py#L973
2641             "execv" | "execve" | "execvp" | "execvpe" | "fexecve" | "wait4" => true,
2642 
2643             // FIXME: Remove after emscripten-core/emscripten#18492 is released (> 3.1.30).
2644             "clearenv" => true,
2645 
2646             _ => false,
2647         }
2648     });
2649 
2650     cfg.skip_const(move |name| {
2651         match name {
2652             // FIXME: deprecated - SIGNUNUSED was removed in glibc 2.26
2653             // users should use SIGSYS instead
2654             "SIGUNUSED" => true,
2655 
2656             // FIXME: emscripten uses different constants to constructs these
2657             n if n.contains("__SIZEOF_PTHREAD") => true,
2658 
2659             // FIXME: `SYS_gettid` was removed in
2660             // emscripten-core/emscripten@6d6474e
2661             "SYS_gettid" => true,
2662 
2663             // FIXME: These values have been changed
2664             | "POSIX_MADV_DONTNEED" // to 4
2665             | "RLIMIT_NLIMITS" // to 16
2666             | "RLIM_NLIMITS" // to 16
2667             | "IPPROTO_MAX" // to 263
2668             | "F_GETLK" // to 5
2669             | "F_SETLK" // to 6
2670             | "F_SETLKW" // to 7
2671             | "O_TMPFILE" // to 65
2672             | "SIG_IGN" // -1
2673                 => true,
2674 
2675             _ => false,
2676         }
2677     });
2678 
2679     cfg.skip_field_type(move |struct_, field| {
2680         // This is a weird union, don't check the type.
2681         // FIXME: is this necessary?
2682         (struct_ == "ifaddrs" && field == "ifa_ifu") ||
2683         // sighandler_t type is super weird
2684         // FIXME: is this necessary?
2685         (struct_ == "sigaction" && field == "sa_sigaction") ||
2686         // sigval is actually a union, but we pretend it's a struct
2687         // FIXME: is this necessary?
2688         (struct_ == "sigevent" && field == "sigev_value") ||
2689         // aio_buf is "volatile void*" and Rust doesn't understand volatile
2690         // FIXME: is this necessary?
2691         (struct_ == "aiocb" && field == "aio_buf")
2692     });
2693 
2694     cfg.skip_field(move |struct_, field| {
2695         // this is actually a union on linux, so we can't represent it well and
2696         // just insert some padding.
2697         // FIXME: is this necessary?
2698         (struct_ == "siginfo_t" && field == "_pad") ||
2699         // musl names this __dummy1 but it's still there
2700         // FIXME: is this necessary?
2701         (struct_ == "glob_t" && field == "gl_flags") ||
2702         // musl seems to define this as an *anonymous* bitfield
2703         // FIXME: is this necessary?
2704         (struct_ == "statvfs" && field == "__f_unused") ||
2705         // sigev_notify_thread_id is actually part of a sigev_un union
2706         (struct_ == "sigevent" && field == "sigev_notify_thread_id") ||
2707         // signalfd had SIGSYS fields added in Linux 4.18, but no libc release has them yet.
2708         (struct_ == "signalfd_siginfo" && (field == "ssi_addr_lsb" ||
2709                                            field == "_pad2" ||
2710                                            field == "ssi_syscall" ||
2711                                            field == "ssi_call_addr" ||
2712                                            field == "ssi_arch")) ||
2713         // FIXME: After musl 1.1.24, it have only one field `sched_priority`,
2714         // while other fields become reserved.
2715         (struct_ == "sched_param" && [
2716             "sched_ss_low_priority",
2717             "sched_ss_repl_period",
2718             "sched_ss_init_budget",
2719             "sched_ss_max_repl",
2720         ].contains(&field))
2721     });
2722 
2723     // FIXME: test linux like
2724     cfg.generate("../src/lib.rs", "main.rs");
2725 }
2726 
2727 fn test_neutrino(target: &str) {
2728     assert!(target.contains("nto-qnx"));
2729 
2730     let mut cfg = ctest_cfg();
2731 
2732     headers! { cfg:
2733         "ctype.h",
2734         "dirent.h",
2735         "dlfcn.h",
2736         "sys/elf.h",
2737         "fcntl.h",
2738         "glob.h",
2739         "grp.h",
2740         "iconv.h",
2741         "ifaddrs.h",
2742         "limits.h",
2743         "sys/link.h",
2744         "locale.h",
2745         "sys/malloc.h",
2746         "rcheck/malloc.h",
2747         "malloc.h",
2748         "mqueue.h",
2749         "net/if.h",
2750         "net/if_arp.h",
2751         "net/route.h",
2752         "netdb.h",
2753         "netinet/in.h",
2754         "netinet/ip.h",
2755         "netinet/tcp.h",
2756         "netinet/udp.h",
2757         "netinet/ip_var.h",
2758         "sys/poll.h",
2759         "pthread.h",
2760         "pwd.h",
2761         "regex.h",
2762         "resolv.h",
2763         "sys/sched.h",
2764         "sched.h",
2765         "semaphore.h",
2766         "shadow.h",
2767         "signal.h",
2768         "spawn.h",
2769         "stddef.h",
2770         "stdint.h",
2771         "stdio.h",
2772         "stdlib.h",
2773         "string.h",
2774         "sys/sysctl.h",
2775         "sys/file.h",
2776         "sys/inotify.h",
2777         "sys/ioctl.h",
2778         "sys/ipc.h",
2779         "sys/mman.h",
2780         "sys/mount.h",
2781         "sys/msg.h",
2782         "sys/resource.h",
2783         "sys/sem.h",
2784         "sys/socket.h",
2785         "sys/stat.h",
2786         "sys/statvfs.h",
2787         "sys/swap.h",
2788         "sys/termio.h",
2789         "sys/time.h",
2790         "sys/times.h",
2791         "sys/types.h",
2792         "sys/uio.h",
2793         "sys/un.h",
2794         "sys/utsname.h",
2795         "sys/wait.h",
2796         "syslog.h",
2797         "termios.h",
2798         "time.h",
2799         "sys/time.h",
2800         "ucontext.h",
2801         "unistd.h",
2802         "utime.h",
2803         "utmp.h",
2804         "wchar.h",
2805         "aio.h",
2806         "nl_types.h",
2807         "langinfo.h",
2808         "unix.h",
2809         "nbutil.h",
2810         "aio.h",
2811         "net/bpf.h",
2812         "net/if_dl.h",
2813         "sys/syspage.h",
2814 
2815         // TODO: The following header file doesn't appear as part of the default headers
2816         //       found in a standard installation of Neutrino 7.1 SDP.  The structures/
2817         //       functions dependent on it are currently commented out.
2818         //"sys/asyncmsg.h",
2819     }
2820 
2821     // Create and include a header file containing
2822     // items which are not included in any official
2823     // header file.
2824     let internal_header = "internal.h";
2825     let out_dir = env::var("OUT_DIR").unwrap();
2826     cfg.header(internal_header);
2827     cfg.include(&out_dir);
2828     std::fs::write(
2829         out_dir.to_owned() + "/" + internal_header,
2830         "#ifndef __internal_h__
2831         #define __internal_h__
2832         void __my_thread_exit(const void **);
2833         #endif",
2834     )
2835     .unwrap();
2836 
2837     cfg.type_name(move |ty, is_struct, is_union| {
2838         match ty {
2839             // Just pass all these through, no need for a "struct" prefix
2840             "FILE" | "fd_set" | "Dl_info" | "DIR" | "Elf32_Phdr" | "Elf64_Phdr" | "Elf32_Shdr"
2841             | "Elf64_Shdr" | "Elf32_Sym" | "Elf64_Sym" | "Elf32_Ehdr" | "Elf64_Ehdr"
2842             | "Elf32_Chdr" | "Elf64_Chdr" | "aarch64_qreg_t" | "syspage_entry_info"
2843             | "syspage_array_info" => ty.to_string(),
2844 
2845             "Ioctl" => "int".to_string(),
2846 
2847             t if is_union => format!("union {}", t),
2848 
2849             t if t.ends_with("_t") => t.to_string(),
2850 
2851             // put `struct` in front of all structs:.
2852             t if is_struct => format!("struct {}", t),
2853 
2854             t => t.to_string(),
2855         }
2856     });
2857 
2858     cfg.field_name(move |_struct_, field| match field {
2859         "type_" => "type".to_string(),
2860 
2861         s => s.to_string(),
2862     });
2863 
2864     cfg.volatile_item(|i| {
2865         use ctest::VolatileItemKind::*;
2866         match i {
2867             // The following fields are volatie but since we cannot express that in
2868             // Rust types, we have to explicitly tell the checker about it here:
2869             StructField(ref n, ref f) if n == "aiocb" && f == "aio_buf" => true,
2870             StructField(ref n, ref f) if n == "qtime_entry" && f == "nsec_tod_adjust" => true,
2871             StructField(ref n, ref f) if n == "qtime_entry" && f == "nsec" => true,
2872             StructField(ref n, ref f) if n == "qtime_entry" && f == "nsec_stable" => true,
2873             StructField(ref n, ref f) if n == "intrspin" && f == "value" => true,
2874             _ => false,
2875         }
2876     });
2877 
2878     cfg.skip_type(move |ty| {
2879         match ty {
2880             // FIXME: `sighandler_t` type is incorrect, see:
2881             // https://github.com/rust-lang/libc/issues/1359
2882             "sighandler_t" => true,
2883 
2884             // Does not exist in Neutrino
2885             "locale_t" => true,
2886 
2887             _ => false,
2888         }
2889     });
2890 
2891     cfg.skip_struct(move |ty| {
2892         if ty.starts_with("__c_anonymous_") {
2893             return true;
2894         }
2895         match ty {
2896             "Elf64_Phdr" | "Elf32_Phdr" => true,
2897 
2898             // FIXME: This is actually a union, not a struct
2899             "sigval" => true,
2900 
2901             // union
2902             "_channel_connect_attr" => true,
2903 
2904             _ => false,
2905         }
2906     });
2907 
2908     cfg.skip_const(move |name| {
2909         match name {
2910             // These signal "functions" are actually integer values that are casted to a fn ptr
2911             // This causes the compiler to err because of "illegal cast of int to ptr".
2912             "SIG_DFL" => true,
2913             "SIG_IGN" => true,
2914             "SIG_ERR" => true,
2915 
2916             _ => false,
2917         }
2918     });
2919 
2920     cfg.skip_fn(move |name| {
2921         // skip those that are manually verified
2922         match name {
2923             // FIXME: https://github.com/rust-lang/libc/issues/1272
2924             "execv" | "execve" | "execvp" | "execvpe" => true,
2925 
2926             // wrong signature
2927             "signal" => true,
2928 
2929             // wrong signature of callback ptr
2930             "__cxa_atexit" => true,
2931 
2932             // FIXME: Our API is unsound. The Rust API allows aliasing
2933             // pointers, but the C API requires pointers not to alias.
2934             // We should probably be at least using `&`/`&mut` here, see:
2935             // https://github.com/gnzlbg/ctest/issues/68
2936             "lio_listio" => true,
2937 
2938             // 2 fields are actually unions which we're simply representing
2939             // as structures.
2940             "ChannelConnectAttr" => true,
2941 
2942             // fields contains unions
2943             "SignalKillSigval" => true,
2944             "SignalKillSigval_r" => true,
2945 
2946             // Not defined in any headers.  Defined to work around a
2947             // stack unwinding bug.
2948             "__my_thread_exit" => true,
2949 
2950             _ => false,
2951         }
2952     });
2953 
2954     cfg.skip_field_type(move |struct_, field| {
2955         // sigval is actually a union, but we pretend it's a struct
2956         struct_ == "sigevent" && field == "sigev_value" ||
2957         // Anonymous structures
2958         struct_ == "_idle_hook" && field == "time"
2959     });
2960 
2961     cfg.skip_field(move |struct_, field| {
2962         (struct_ == "__sched_param" && field == "reserved") ||
2963         (struct_ == "sched_param" && field == "reserved") ||
2964         (struct_ == "sigevent" && field == "__sigev_un1") || // union
2965         (struct_ == "sigevent" && field == "__sigev_un2") || // union
2966         // sighandler_t type is super weird
2967         (struct_ == "sigaction" && field == "sa_sigaction") ||
2968         // does not exist
2969         (struct_ == "syspage_entry" && field == "__reserved") ||
2970         false // keep me for smaller diffs when something is added above
2971     });
2972 
2973     cfg.skip_static(move |name| (name == "__dso_handle"));
2974 
2975     cfg.generate("../src/lib.rs", "main.rs");
2976 }
2977 
2978 fn test_vxworks(target: &str) {
2979     assert!(target.contains("vxworks"));
2980 
2981     let mut cfg = ctest::TestGenerator::new();
2982     headers! { cfg:
2983                "vxWorks.h",
2984                "yvals.h",
2985                "nfs/nfsCommon.h",
2986                "rtpLibCommon.h",
2987                "randomNumGen.h",
2988                "taskLib.h",
2989                "sysLib.h",
2990                "ioLib.h",
2991                "inetLib.h",
2992                "socket.h",
2993                "errnoLib.h",
2994                "ctype.h",
2995                "dirent.h",
2996                "dlfcn.h",
2997                "elf.h",
2998                "fcntl.h",
2999                "grp.h",
3000                "sys/poll.h",
3001                "ifaddrs.h",
3002                "langinfo.h",
3003                "limits.h",
3004                "link.h",
3005                "locale.h",
3006                "sys/stat.h",
3007                "netdb.h",
3008                "pthread.h",
3009                "pwd.h",
3010                "sched.h",
3011                "semaphore.h",
3012                "signal.h",
3013                "stddef.h",
3014                "stdint.h",
3015                "stdio.h",
3016                "stdlib.h",
3017                "string.h",
3018                "sys/file.h",
3019                "sys/ioctl.h",
3020                "sys/socket.h",
3021                "sys/time.h",
3022                "sys/times.h",
3023                "sys/types.h",
3024                "sys/uio.h",
3025                "sys/un.h",
3026                "sys/utsname.h",
3027                "sys/wait.h",
3028                "netinet/tcp.h",
3029                "syslog.h",
3030                "termios.h",
3031                "time.h",
3032                "ucontext.h",
3033                "unistd.h",
3034                "utime.h",
3035                "wchar.h",
3036                "errno.h",
3037                "sys/mman.h",
3038                "pathLib.h",
3039                "mqueue.h",
3040     }
3041     // FIXME
3042     cfg.skip_const(move |name| match name {
3043         // sighandler_t weirdness
3044         "SIG_DFL" | "SIG_ERR" | "SIG_IGN"
3045         // This is not defined in vxWorks
3046         | "RTLD_DEFAULT"   => true,
3047         _ => false,
3048     });
3049     // FIXME
3050     cfg.skip_type(move |ty| match ty {
3051         "stat64" | "sighandler_t" | "off64_t" => true,
3052         _ => false,
3053     });
3054 
3055     cfg.skip_field_type(move |struct_, field| match (struct_, field) {
3056         ("siginfo_t", "si_value") | ("stat", "st_size") | ("sigaction", "sa_u") => true,
3057         _ => false,
3058     });
3059 
3060     cfg.skip_roundtrip(move |s| match s {
3061         _ => false,
3062     });
3063 
3064     cfg.type_name(move |ty, is_struct, is_union| match ty {
3065         "DIR" | "FILE" | "Dl_info" | "RTP_DESC" => ty.to_string(),
3066         t if is_union => format!("union {}", t),
3067         t if t.ends_with("_t") => t.to_string(),
3068         t if is_struct => format!("struct {}", t),
3069         t => t.to_string(),
3070     });
3071 
3072     // FIXME
3073     cfg.skip_fn(move |name| match name {
3074         // sigval
3075         "sigqueue" | "_sigqueue"
3076         // sighandler_t
3077         | "signal"
3078         // not used in static linking by default
3079         | "dlerror" => true,
3080         _ => false,
3081     });
3082 
3083     cfg.generate("../src/lib.rs", "main.rs");
3084 }
3085 
3086 fn test_linux(target: &str) {
3087     assert!(target.contains("linux"));
3088 
3089     // target_env
3090     let gnu = target.contains("gnu");
3091     let musl = target.contains("musl") || target.contains("ohos");
3092     let uclibc = target.contains("uclibc");
3093 
3094     match (gnu, musl, uclibc) {
3095         (true, false, false) => (),
3096         (false, true, false) => (),
3097         (false, false, true) => (),
3098         (_, _, _) => panic!(
3099             "linux target lib is gnu: {}, musl: {}, uclibc: {}",
3100             gnu, musl, uclibc
3101         ),
3102     }
3103 
3104     let arm = target.contains("arm");
3105     let i686 = target.contains("i686");
3106     let mips = target.contains("mips");
3107     let mips32 = mips && !target.contains("64");
3108     let mips64 = mips && target.contains("64");
3109     let ppc = target.contains("powerpc");
3110     let ppc64 = target.contains("powerpc64");
3111     let s390x = target.contains("s390x");
3112     let sparc64 = target.contains("sparc64");
3113     let x32 = target.contains("x32");
3114     let x86_32 = target.contains("i686");
3115     let x86_64 = target.contains("x86_64");
3116     let aarch64_musl = target.contains("aarch64") && musl;
3117     let gnueabihf = target.contains("gnueabihf");
3118     let x86_64_gnux32 = target.contains("gnux32") && x86_64;
3119     let riscv64 = target.contains("riscv64");
3120     let uclibc = target.contains("uclibc");
3121 
3122     let mut cfg = ctest_cfg();
3123     cfg.define("_GNU_SOURCE", None);
3124     // This macro re-deifnes fscanf,scanf,sscanf to link to the symbols that are
3125     // deprecated since glibc >= 2.29. This allows Rust binaries to link against
3126     // glibc versions older than 2.29.
3127     cfg.define("__GLIBC_USE_DEPRECATED_SCANF", None);
3128 
3129     headers! { cfg:
3130                "ctype.h",
3131                "dirent.h",
3132                "dlfcn.h",
3133                "elf.h",
3134                "fcntl.h",
3135                "getopt.h",
3136                "glob.h",
3137                [gnu]: "gnu/libc-version.h",
3138                "grp.h",
3139                "iconv.h",
3140                "ifaddrs.h",
3141                "langinfo.h",
3142                "libgen.h",
3143                "limits.h",
3144                "link.h",
3145                "locale.h",
3146                "malloc.h",
3147                "mntent.h",
3148                "mqueue.h",
3149                "net/ethernet.h",
3150                "net/if.h",
3151                "net/if_arp.h",
3152                "net/route.h",
3153                "netdb.h",
3154                "netinet/in.h",
3155                "netinet/ip.h",
3156                "netinet/tcp.h",
3157                "netinet/udp.h",
3158                "netpacket/packet.h",
3159                "poll.h",
3160                "pthread.h",
3161                "pty.h",
3162                "pwd.h",
3163                "regex.h",
3164                "resolv.h",
3165                "sched.h",
3166                "semaphore.h",
3167                "shadow.h",
3168                "signal.h",
3169                "spawn.h",
3170                "stddef.h",
3171                "stdint.h",
3172                "stdio.h",
3173                "stdlib.h",
3174                "string.h",
3175                "sys/epoll.h",
3176                "sys/eventfd.h",
3177                "sys/file.h",
3178                "sys/fsuid.h",
3179                "sys/inotify.h",
3180                "sys/ioctl.h",
3181                "sys/ipc.h",
3182                "sys/mman.h",
3183                "sys/mount.h",
3184                "sys/msg.h",
3185                "sys/personality.h",
3186                "sys/prctl.h",
3187                "sys/ptrace.h",
3188                "sys/quota.h",
3189                "sys/random.h",
3190                "sys/reboot.h",
3191                "sys/resource.h",
3192                "sys/sem.h",
3193                "sys/sendfile.h",
3194                "sys/shm.h",
3195                "sys/signalfd.h",
3196                "sys/socket.h",
3197                "sys/stat.h",
3198                "sys/statvfs.h",
3199                "sys/swap.h",
3200                "sys/syscall.h",
3201                "sys/time.h",
3202                "sys/timerfd.h",
3203                "sys/times.h",
3204                "sys/timex.h",
3205                "sys/types.h",
3206                "sys/uio.h",
3207                "sys/un.h",
3208                "sys/user.h",
3209                "sys/utsname.h",
3210                "sys/vfs.h",
3211                "sys/wait.h",
3212                "syslog.h",
3213                "termios.h",
3214                "time.h",
3215                "ucontext.h",
3216                "unistd.h",
3217                "utime.h",
3218                "utmp.h",
3219                "utmpx.h",
3220                "wchar.h",
3221                "errno.h",
3222                // `sys/io.h` is only available on x86*, Alpha, IA64, and 32-bit
3223                // ARM: https://bugzilla.redhat.com/show_bug.cgi?id=1116162
3224                // Also unavailable on gnueabihf with glibc 2.30.
3225                // https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=6b33f373c7b9199e00ba5fbafd94ac9bfb4337b1
3226                [(x86_64 || x86_32 || arm) && !gnueabihf]: "sys/io.h",
3227                // `sys/reg.h` is only available on x86 and x86_64
3228                [x86_64 || x86_32]: "sys/reg.h",
3229                // sysctl system call is deprecated and not available on musl
3230                // It is also unsupported in x32, deprecated since glibc 2.30:
3231                [!(x32 || musl || gnu)]: "sys/sysctl.h",
3232                // <execinfo.h> is not supported by musl:
3233                // https://www.openwall.com/lists/musl/2015/04/09/3
3234                // <execinfo.h> is not present on uclibc.
3235                [!(musl || uclibc)]: "execinfo.h",
3236     }
3237 
3238     // Include linux headers at the end:
3239     headers! {
3240         cfg:
3241         "asm/mman.h",
3242         "linux/can.h",
3243         "linux/can/raw.h",
3244         // FIXME: requires kernel headers >= 5.4.1.
3245         [!musl]: "linux/can/j1939.h",
3246         "linux/dccp.h",
3247         "linux/errqueue.h",
3248         "linux/falloc.h",
3249         "linux/filter.h",
3250         "linux/fs.h",
3251         "linux/futex.h",
3252         "linux/genetlink.h",
3253         "linux/if.h",
3254         "linux/if_addr.h",
3255         "linux/if_alg.h",
3256         "linux/if_ether.h",
3257         "linux/if_tun.h",
3258         "linux/input.h",
3259         "linux/ipv6.h",
3260         "linux/kexec.h",
3261         "linux/keyctl.h",
3262         "linux/magic.h",
3263         "linux/memfd.h",
3264         "linux/membarrier.h",
3265         "linux/mempolicy.h",
3266         "linux/mman.h",
3267         "linux/module.h",
3268         // FIXME: requires kernel headers >= 5.1.
3269         [!musl]: "linux/mount.h",
3270         "linux/net_tstamp.h",
3271         "linux/netfilter/nfnetlink.h",
3272         "linux/netfilter/nfnetlink_log.h",
3273         "linux/netfilter/nfnetlink_queue.h",
3274         "linux/netfilter/nf_tables.h",
3275         "linux/netfilter_ipv4.h",
3276         "linux/netfilter_ipv6.h",
3277         "linux/netfilter_ipv6/ip6_tables.h",
3278         "linux/netlink.h",
3279         // FIXME: requires Linux >= 5.6:
3280         [!musl && !sparc64]: "linux/openat2.h",
3281         [!musl]: "linux/ptrace.h",
3282         "linux/quota.h",
3283         "linux/random.h",
3284         "linux/reboot.h",
3285         "linux/rtnetlink.h",
3286         "linux/sched.h",
3287         "linux/sctp.h",
3288         "linux/seccomp.h",
3289         "linux/sock_diag.h",
3290         "linux/sockios.h",
3291         "linux/uinput.h",
3292         "linux/vm_sockets.h",
3293         "linux/wait.h",
3294         "sys/fanotify.h",
3295         // <sys/auxv.h> is not present on uclibc
3296         [!uclibc]: "sys/auxv.h",
3297     }
3298 
3299     // note: aio.h must be included before sys/mount.h
3300     headers! {
3301         cfg:
3302         "sys/xattr.h",
3303         "sys/sysinfo.h",
3304         // AIO is not supported by uclibc:
3305         [!uclibc]: "aio.h",
3306     }
3307 
3308     cfg.type_name(move |ty, is_struct, is_union| {
3309         match ty {
3310             // Just pass all these through, no need for a "struct" prefix
3311             "FILE" | "fd_set" | "Dl_info" | "DIR" | "Elf32_Phdr" | "Elf64_Phdr" | "Elf32_Shdr"
3312             | "Elf64_Shdr" | "Elf32_Sym" | "Elf64_Sym" | "Elf32_Ehdr" | "Elf64_Ehdr"
3313             | "Elf32_Chdr" | "Elf64_Chdr" => ty.to_string(),
3314 
3315             "Ioctl" if gnu => "unsigned long".to_string(),
3316             "Ioctl" => "int".to_string(),
3317 
3318             t if is_union => format!("union {}", t),
3319 
3320             t if t.ends_with("_t") => t.to_string(),
3321 
3322             // In MUSL `flock64` is a typedef to `flock`.
3323             "flock64" if musl => format!("struct {}", ty),
3324 
3325             // put `struct` in front of all structs:.
3326             t if is_struct => format!("struct {}", t),
3327 
3328             t => t.to_string(),
3329         }
3330     });
3331 
3332     cfg.field_name(move |struct_, field| {
3333         match field {
3334             // Our stat *_nsec fields normally don't actually exist but are part
3335             // of a timeval struct
3336             s if s.ends_with("_nsec") && struct_.starts_with("stat") => {
3337                 s.replace("e_nsec", ".tv_nsec")
3338             }
3339             // FIXME: epoll_event.data is actually a union in C, but in Rust
3340             // it is only a u64 because we only expose one field
3341             // http://man7.org/linux/man-pages/man2/epoll_wait.2.html
3342             "u64" if struct_ == "epoll_event" => "data.u64".to_string(),
3343             // The following structs have a field called `type` in C,
3344             // but `type` is a Rust keyword, so these fields are translated
3345             // to `type_` in Rust.
3346             "type_"
3347                 if struct_ == "input_event"
3348                     || struct_ == "input_mask"
3349                     || struct_ == "ff_effect" =>
3350             {
3351                 "type".to_string()
3352             }
3353 
3354             s => s.to_string(),
3355         }
3356     });
3357 
3358     cfg.skip_type(move |ty| {
3359         match ty {
3360             // FIXME: `sighandler_t` type is incorrect, see:
3361             // https://github.com/rust-lang/libc/issues/1359
3362             "sighandler_t" => true,
3363 
3364             // These cannot be tested when "resolv.h" is included and are tested
3365             // in the `linux_elf.rs` file.
3366             "Elf64_Phdr" | "Elf32_Phdr" => true,
3367 
3368             // This type is private on Linux. It is implemented as a C `enum`
3369             // (`c_uint`) and this clashes with the type of the `rlimit` APIs
3370             // which expect a `c_int` even though both are ABI compatible.
3371             "__rlimit_resource_t" => true,
3372             // on Linux, this is a volatile int
3373             "pthread_spinlock_t" => true,
3374 
3375             // For internal use only, to define architecture specific ioctl constants with a libc specific type.
3376             "Ioctl" => true,
3377 
3378             // FIXME: requires >= 5.4.1 kernel headers
3379             "pgn_t" if musl => true,
3380             "priority_t" if musl => true,
3381             "name_t" if musl => true,
3382 
3383             _ => false,
3384         }
3385     });
3386 
3387     cfg.skip_struct(move |ty| {
3388         if ty.starts_with("__c_anonymous_") {
3389             return true;
3390         }
3391         // FIXME: musl CI has old headers
3392         if (musl || sparc64) && ty.starts_with("uinput_") {
3393             return true;
3394         }
3395         // FIXME(https://github.com/rust-lang/libc/issues/1558): passing by
3396         // value corrupts the value for reasons not understood.
3397         if (gnu && sparc64) && (ty == "ip_mreqn" || ty == "hwtstamp_config") {
3398             return true;
3399         }
3400         match ty {
3401             // These cannot be tested when "resolv.h" is included and are tested
3402             // in the `linux_elf.rs` file.
3403             "Elf64_Phdr" | "Elf32_Phdr" => true,
3404 
3405             // On Linux, the type of `ut_tv` field of `struct utmpx`
3406             // can be an anonymous struct, so an extra struct,
3407             // which is absent in glibc, has to be defined.
3408             "__timeval" => true,
3409 
3410             // FIXME: This is actually a union, not a struct
3411             "sigval" => true,
3412 
3413             // This type is tested in the `linux_termios.rs` file since there
3414             // are header conflicts when including them with all the other
3415             // structs.
3416             "termios2" => true,
3417 
3418             // FIXME: remove once we set minimum supported glibc version.
3419             // ucontext_t added a new field as of glibc 2.28; our struct definition is
3420             // conservative and omits the field, but that means the size doesn't match for newer
3421             // glibcs (see https://github.com/rust-lang/libc/issues/1410)
3422             "ucontext_t" if gnu => true,
3423 
3424             // FIXME: Somehow we cannot include headers correctly in glibc 2.30.
3425             // So let's ignore for now and re-visit later.
3426             // Probably related: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91085
3427             "statx" => true,
3428             "statx_timestamp" => true,
3429 
3430             // On Linux, the type of `ut_exit` field of struct `utmpx`
3431             // can be an anonymous struct, so an extra struct,
3432             // which is absent in musl, has to be defined.
3433             "__exit_status" if musl => true,
3434 
3435             // clone_args might differ b/w libc versions
3436             "clone_args" => true,
3437 
3438             // Might differ between kernel versions
3439             "open_how" => true,
3440 
3441             // FIXME: requires >= 5.4.1 kernel headers
3442             "j1939_filter" if musl => true,
3443 
3444             // FIXME: requires >= 5.4 kernel headers
3445             "sockaddr_can" if musl => true,
3446 
3447             // FIXME: Unignore once we update Ubuntu to 22.04
3448             "mallinfo2" if sparc64 => true,
3449             "ptrace_rseq_configuration" if sparc64 => true,
3450             "sctp_initmsg" | "sctp_sndrcvinfo" | "sctp_sndinfo" | "sctp_rcvinfo"
3451             | "sctp_nxtinfo" | "sctp_prinfo" | "sctp_authinfo" => true,
3452 
3453             _ => false,
3454         }
3455     });
3456 
3457     cfg.skip_const(move |name| {
3458         if !gnu {
3459             // Skip definitions from the kernel on non-glibc Linux targets.
3460             // They're libc-independent, so we only need to check them on one
3461             // libc. We don't want to break CI if musl or another libc doesn't
3462             // have the definitions yet. (We do still want to check them on
3463             // every glibc target, though, as some of them can vary by
3464             // architecture.)
3465             //
3466             // This is not an exhaustive list of kernel constants, just a list
3467             // of prefixes of all those that have appeared here or that get
3468             // updated regularly and seem likely to cause breakage.
3469             if name.starts_with("AF_")
3470                 || name.starts_with("ARPHRD_")
3471                 || name.starts_with("EPOLL")
3472                 || name.starts_with("F_")
3473                 || name.starts_with("FALLOC_FL_")
3474                 || name.starts_with("IFLA_")
3475                 || name.starts_with("KEXEC_")
3476                 || name.starts_with("MS_")
3477                 || name.starts_with("MSG_")
3478                 || name.starts_with("OPEN_TREE_")
3479                 || name.starts_with("P_")
3480                 || name.starts_with("PF_")
3481                 || name.starts_with("RLIMIT_")
3482                 || name.starts_with("RTEXT_FILTER_")
3483                 || name.starts_with("SOL_")
3484                 || name.starts_with("STATX_")
3485                 || name.starts_with("SW_")
3486                 || name.starts_with("SYS_")
3487                 || name.starts_with("TCP_")
3488                 || name.starts_with("UINPUT_")
3489                 || name.starts_with("VMADDR_")
3490             {
3491                 return true;
3492             }
3493         }
3494         if musl || sparc64 {
3495             // FIXME: Requires >= 5.4.1 kernel headers
3496             if name.starts_with("J1939")
3497                 || name.starts_with("RTEXT_FILTER_")
3498                 || name.starts_with("SO_J1939")
3499                 || name.starts_with("SCM_J1939")
3500             {
3501                 return true;
3502             }
3503             // FIXME: Requires >= 5.10 kernel headers
3504             if name.starts_with("MEMBARRIER_CMD_REGISTER")
3505                 || name.starts_with("MEMBARRIER_CMD_PRIVATE")
3506             {
3507                 return true;
3508             }
3509         }
3510         match name {
3511             // These constants are not available if gnu headers have been included
3512             // and can therefore not be tested here
3513             //
3514             // The IPV6 constants are tested in the `linux_ipv6.rs` tests:
3515             | "IPV6_FLOWINFO"
3516             | "IPV6_FLOWLABEL_MGR"
3517             | "IPV6_FLOWINFO_SEND"
3518             | "IPV6_FLOWINFO_FLOWLABEL"
3519             | "IPV6_FLOWINFO_PRIORITY"
3520             // The F_ fnctl constants are tested in the `linux_fnctl.rs` tests:
3521             | "F_CANCELLK"
3522             | "F_ADD_SEALS"
3523             | "F_GET_SEALS"
3524             | "F_SEAL_SEAL"
3525             | "F_SEAL_SHRINK"
3526             | "F_SEAL_GROW"
3527             | "F_SEAL_WRITE" => true,
3528             // The `ARPHRD_CAN` is tested in the `linux_if_arp.rs` tests
3529             // because including `linux/if_arp.h` causes some conflicts:
3530             "ARPHRD_CAN" => true,
3531 
3532             // FIXME: deprecated: not available in any header
3533             // See: https://github.com/rust-lang/libc/issues/1356
3534             "ENOATTR" => true,
3535 
3536             // FIXME: SIGUNUSED was removed in glibc 2.26
3537             // Users should use SIGSYS instead.
3538             "SIGUNUSED" => true,
3539 
3540             // FIXME: conflicts with glibc headers and is tested in
3541             // `linux_termios.rs` below:
3542             | "BOTHER"
3543             | "IBSHIFT"
3544             | "TCGETS2"
3545             | "TCSETS2"
3546             | "TCSETSW2"
3547             | "TCSETSF2" => true,
3548 
3549             // FIXME: on musl the pthread types are defined a little differently
3550             // - these constants are used by the glibc implementation.
3551             n if musl && n.contains("__SIZEOF_PTHREAD") => true,
3552 
3553             // FIXME: It was extended to 4096 since glibc 2.31 (Linux 5.4).
3554             // We should do so after a while.
3555             "SOMAXCONN" if gnu => true,
3556 
3557             // deprecated: not available from Linux kernel 5.6:
3558             "VMADDR_CID_RESERVED" => true,
3559 
3560             // IPPROTO_MAX was increased in 5.6 for IPPROTO_MPTCP:
3561             | "IPPROTO_MAX"
3562             | "IPPROTO_MPTCP" => true,
3563 
3564             // FIXME: Not currently available in headers
3565             "P_PIDFD" if mips => true,
3566             "SYS_pidfd_open" if mips => true,
3567 
3568             // FIXME: Not currently available in headers on MIPS
3569             // Not yet implemented on sparc64
3570             "SYS_clone3" if mips | sparc64 => true,
3571 
3572             // FIXME: Not defined on ARM, gnueabihf, MIPS, musl, PowerPC, riscv64, s390x, and sparc64.
3573             "SYS_memfd_secret" if arm | gnueabihf | mips | musl | ppc | riscv64 | s390x | sparc64 => true,
3574 
3575             // FIXME: Added in Linux 5.16
3576             // https://github.com/torvalds/linux/commit/039c0ec9bb77446d7ada7f55f90af9299b28ca49
3577             "SYS_futex_waitv" => true,
3578 
3579             // FIXME: Added in Linux 5.17
3580             // https://github.com/torvalds/linux/commit/c6018b4b254971863bd0ad36bb5e7d0fa0f0ddb0
3581             "SYS_set_mempolicy_home_node" => true,
3582 
3583             // FIXME: Added in Linux 5.18
3584             // https://github.com/torvalds/linux/commit/8b5413647262dda8d8d0e07e14ea1de9ac7cf0b2
3585             "NFQA_PRIORITY" => true,
3586 
3587             // FIXME: requires more recent kernel headers on CI
3588             | "UINPUT_VERSION"
3589             | "SW_MAX"
3590             | "SW_CNT"
3591                 if mips || ppc64 || riscv64 || sparc64 => true,
3592 
3593             // FIXME: Not currently available in headers on ARM, MIPS and musl.
3594             "NETLINK_GET_STRICT_CHK" if arm || mips || musl => true,
3595 
3596             // kernel constants not available in uclibc 1.0.34
3597             | "EXTPROC"
3598             | "FAN_MARK_FILESYSTEM"
3599             | "FAN_MARK_INODE"
3600             | "IPPROTO_BEETPH"
3601             | "IPPROTO_MPLS"
3602             | "IPV6_HDRINCL"
3603             | "IPV6_MULTICAST_ALL"
3604             | "IPV6_PMTUDISC_INTERFACE"
3605             | "IPV6_PMTUDISC_OMIT"
3606             | "IPV6_ROUTER_ALERT_ISOLATE"
3607             | "PACKET_MR_UNICAST"
3608             | "RUSAGE_THREAD"
3609             | "SHM_EXEC"
3610             | "UDP_GRO"
3611             | "UDP_SEGMENT"
3612                 if uclibc => true,
3613 
3614             // headers conflicts with linux/pidfd.h
3615             "PIDFD_NONBLOCK" => true,
3616 
3617             // is a private value for kernel usage normally
3618             "FUSE_SUPER_MAGIC" => true,
3619 
3620             // linux 5.17 min
3621             "PR_SET_VMA" | "PR_SET_VMA_ANON_NAME" => true,
3622 
3623             // present in recent kernels only
3624             "PR_SCHED_CORE" | "PR_SCHED_CORE_CREATE" | "PR_SCHED_CORE_GET" | "PR_SCHED_CORE_MAX" | "PR_SCHED_CORE_SCOPE_PROCESS_GROUP" | "PR_SCHED_CORE_SCOPE_THREAD" | "PR_SCHED_CORE_SCOPE_THREAD_GROUP" | "PR_SCHED_CORE_SHARE_FROM" | "PR_SCHED_CORE_SHARE_TO" => true,
3625 
3626             // present in recent kernels only >= 5.13
3627             "PR_PAC_SET_ENABLED_KEYS" | "PR_PAC_GET_ENABLED_KEYS" => true,
3628             // present in recent kernels only >= 5.19
3629             "PR_SME_SET_VL" | "PR_SME_GET_VL" | "PR_SME_VL_LEN_MAX" | "PR_SME_SET_VL_INHERIT" | "PR_SME_SET_VL_ONE_EXEC" => true,
3630 
3631             // Added in Linux 5.14
3632             "FUTEX_LOCK_PI2" => true,
3633 
3634             // Added in  linux 6.1
3635             "STATX_DIOALIGN" => true,
3636 
3637             // FIXME: Parts of netfilter/nfnetlink*.h require more recent kernel headers:
3638             | "RTNLGRP_MCTP_IFADDR" // linux v5.17+
3639             | "RTNLGRP_TUNNEL" // linux v5.18+
3640             | "RTNLGRP_STATS" // linux v5.18+
3641                 => true,
3642 
3643             // FIXME: The below is no longer const in glibc 2.34:
3644             // https://github.com/bminor/glibc/commit/5d98a7dae955bafa6740c26eaba9c86060ae0344
3645             | "PTHREAD_STACK_MIN"
3646             | "SIGSTKSZ"
3647             | "MINSIGSTKSZ"
3648                 if gnu => true,
3649 
3650             // FIXME: Linux >= 5.16 changed its value:
3651             // https://github.com/torvalds/linux/commit/42df6e1d221dddc0f2acf2be37e68d553ad65f96
3652             "NF_NETDEV_NUMHOOKS" => true,
3653 
3654             // FIXME: requires Linux >= 5.6:
3655             | "RESOLVE_BENEATH"
3656             | "RESOLVE_CACHED"
3657             | "RESOLVE_IN_ROOT"
3658             | "RESOLVE_NO_MAGICLINKS"
3659             | "RESOLVE_NO_SYMLINKS"
3660             | "RESOLVE_NO_XDEV" if musl || sparc64 => true,
3661 
3662             // FIXME: requires Linux >= 5.4:
3663             | "CAN_J1939"
3664             | "CAN_NPROTO" if musl || sparc64 => true,
3665 
3666             // FIXME: requires Linux >= 5.6
3667             "GRND_INSECURE" if musl || sparc64 => true,
3668 
3669             // FIXME: requires Linux >= 5.7:
3670             "MREMAP_DONTUNMAP" if musl || sparc64 => true,
3671 
3672             // FIXME: Requires more recent kernel headers (5.9 / 5.11):
3673             | "CLOSE_RANGE_UNSHARE"
3674             | "CLOSE_RANGE_CLOEXEC" if musl || sparc64 => true,
3675 
3676             // FIXME: requires Linux >= 5.12:
3677             "MPOL_F_NUMA_BALANCING" if musl || sparc64 => true,
3678 
3679             // FIXME: Requires more recent kernel headers
3680             | "NFNL_SUBSYS_COUNT" // bumped in v5.14
3681             | "NFNL_SUBSYS_HOOK" // v5.14+
3682             | "NFULA_VLAN" // v5.4+
3683             | "NFULA_L2HDR" // v5.4+
3684             | "NFULA_VLAN_PROTO" // v5.4+
3685             | "NFULA_VLAN_TCI" // v5.4+
3686             | "NFULA_VLAN_UNSPEC" // v5.4+
3687             | "RTNLGRP_NEXTHOP" // linux v5.3+
3688             | "RTNLGRP_BRVLAN" // linux v5.6+
3689             if musl || sparc64 => true,
3690 
3691             // FIXME: Unignore once we update Ubuntu to 22.04
3692             | "VMADDR_CID_LOCAL"
3693             | "STATX_MNT_ID"
3694             | "SYS_close_range"
3695             | "SYS_openat2"
3696             | "SYS_pidfd_getfd"
3697             | "SYS_faccessat2"
3698             | "SYS_process_madvise"
3699             | "SYS_epoll_pwait2"
3700             | "SYS_mount_setattr"
3701             | "SYS_quotactl_fd"
3702             | "SYS_landlock_create_ruleset"
3703             | "SYS_landlock_add_rule"
3704             | "SYS_landlock_restrict_self"
3705             | "SYS_process_mrelease"
3706             | "IFLA_PROP_LIST"
3707             | "IFLA_ALT_IFNAME"
3708             | "IFLA_PERM_ADDRESS"
3709             | "IFLA_PROTO_DOWN_REASON"
3710             | "STATX_ATTR_MOUNT_ROOT"
3711             | "STATX_ATTR_VERITY"
3712             | "STATX_ATTR_DAX"
3713             if sparc64 => true,
3714             // Added in Linux 5.13
3715             "PTRACE_GET_RSEQ_CONFIGURATION" if sparc64 => true,
3716 
3717             // FIXME: Requires more recent kernel headers
3718             | "IFLA_PARENT_DEV_NAME"     // linux v5.13+
3719             | "IFLA_PARENT_DEV_BUS_NAME" // linux v5.13+
3720             | "IFLA_GRO_MAX_SIZE"        // linux v5.16+
3721             | "IFLA_TSO_MAX_SIZE"        // linux v5.18+
3722             | "IFLA_TSO_MAX_SEGS"        // linux v5.18+
3723             | "IFLA_ALLMULTI"            // linux v6.0+
3724                 => true,
3725             "SCTP_FUTURE_ASSOC" | "SCTP_CURRENT_ASSOC" | "SCTP_ALL_ASSOC" | "SCTP_PEER_ADDR_THLDS_V2" => true, // linux 5.5+
3726 
3727             // FIXME: Requires more recent kernel headers
3728             "HWTSTAMP_TX_ONESTEP_P2P" if sparc64 || musl => true, // linux v5.6+
3729 
3730             _ => false,
3731         }
3732     });
3733 
3734     cfg.skip_fn(move |name| {
3735         // skip those that are manually verified
3736         match name {
3737             // FIXME: https://github.com/rust-lang/libc/issues/1272
3738             "execv" | "execve" | "execvp" | "execvpe" | "fexecve" => true,
3739 
3740             // There are two versions of the sterror_r function, see
3741             //
3742             // https://linux.die.net/man/3/strerror_r
3743             //
3744             // An XSI-compliant version provided if:
3745             //
3746             // (_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600)
3747             //  && ! _GNU_SOURCE
3748             //
3749             // and a GNU specific version provided if _GNU_SOURCE is defined.
3750             //
3751             // libc provides bindings for the XSI-compliant version, which is
3752             // preferred for portable applications.
3753             //
3754             // We skip the test here since here _GNU_SOURCE is defined, and
3755             // test the XSI version below.
3756             "strerror_r" => true,
3757 
3758             // FIXME: Our API is unsound. The Rust API allows aliasing
3759             // pointers, but the C API requires pointers not to alias.
3760             // We should probably be at least using `&`/`&mut` here, see:
3761             // https://github.com/gnzlbg/ctest/issues/68
3762             "lio_listio" if musl => true,
3763 
3764             // FIXME: the glibc version used by the Sparc64 build jobs
3765             // which use Debian 10.0 is too old.
3766             "statx" if sparc64 => true,
3767             // Needs glibc 2.34 or later.
3768             "posix_spawn_file_actions_addclosefrom_np" if gnu && sparc64 => true,
3769             // Needs glibc 2.35 or later.
3770             "posix_spawn_file_actions_addtcsetpgrp_np" if gnu && sparc64 => true,
3771 
3772             // FIXME: Deprecated since glibc 2.30. Remove fn once upstream does.
3773             "sysctl" if gnu => true,
3774 
3775             // FIXME: It now takes c_void instead of timezone since glibc 2.31.
3776             "gettimeofday" if gnu => true,
3777 
3778             // These are all implemented as static inline functions in uclibc, so
3779             // they cannot be linked against.
3780             // If implementations are required, they might need to be implemented
3781             // in this crate.
3782             "posix_spawnattr_init" if uclibc => true,
3783             "posix_spawnattr_destroy" if uclibc => true,
3784             "posix_spawnattr_getsigdefault" if uclibc => true,
3785             "posix_spawnattr_setsigdefault" if uclibc => true,
3786             "posix_spawnattr_getsigmask" if uclibc => true,
3787             "posix_spawnattr_setsigmask" if uclibc => true,
3788             "posix_spawnattr_getflags" if uclibc => true,
3789             "posix_spawnattr_setflags" if uclibc => true,
3790             "posix_spawnattr_getpgroup" if uclibc => true,
3791             "posix_spawnattr_setpgroup" if uclibc => true,
3792             "posix_spawnattr_getschedpolicy" if uclibc => true,
3793             "posix_spawnattr_setschedpolicy" if uclibc => true,
3794             "posix_spawnattr_getschedparam" if uclibc => true,
3795             "posix_spawnattr_setschedparam" if uclibc => true,
3796             "posix_spawn_file_actions_init" if uclibc => true,
3797             "posix_spawn_file_actions_destroy" if uclibc => true,
3798 
3799             // uclibc defines the flags type as a uint, but dependent crates
3800             // assume it's a int instead.
3801             "getnameinfo" if uclibc => true,
3802 
3803             // FIXME: This needs musl 1.2.2 or later.
3804             "gettid" if musl => true,
3805 
3806             // Needs glibc 2.33 or later.
3807             "mallinfo2" => true,
3808 
3809             "reallocarray" if musl => true,
3810 
3811             // Not defined in uclibc as of 1.0.34
3812             "gettid" if uclibc => true,
3813 
3814             // Needs musl 1.2.3 or later.
3815             "pthread_getname_np" if musl => true,
3816 
3817             // pthread_sigqueue uses sigval, which was initially declared
3818             // as a struct but should be defined as a union. However due
3819             // to the issues described here: https://github.com/rust-lang/libc/issues/2816
3820             // it can't be changed from struct.
3821             "pthread_sigqueue" => true,
3822 
3823             // There are two versions of basename(3) on Linux with glibc, see
3824             //
3825             // https://man7.org/linux/man-pages/man3/basename.3.html
3826             //
3827             // If libgen.h is included, then the POSIX version will be available;
3828             // If _GNU_SOURCE is defined and string.h is included, then the GNU one
3829             // will be used.
3830             //
3831             // libc exposes both of them, providing a prefix to differentiate between
3832             // them.
3833             //
3834             // Because the name with prefix is not a valid symbol in C, we have to
3835             // skip the tests.
3836             "posix_basename" if gnu => true,
3837             "gnu_basename" if gnu => true,
3838 
3839             _ => false,
3840         }
3841     });
3842 
3843     cfg.skip_field_type(move |struct_, field| {
3844         // This is a weird union, don't check the type.
3845         (struct_ == "ifaddrs" && field == "ifa_ifu") ||
3846         // sighandler_t type is super weird
3847         (struct_ == "sigaction" && field == "sa_sigaction") ||
3848         // __timeval type is a patch which doesn't exist in glibc
3849         (struct_ == "utmpx" && field == "ut_tv") ||
3850         // sigval is actually a union, but we pretend it's a struct
3851         (struct_ == "sigevent" && field == "sigev_value") ||
3852         // this one is an anonymous union
3853         (struct_ == "ff_effect" && field == "u") ||
3854         // `__exit_status` type is a patch which is absent in musl
3855         (struct_ == "utmpx" && field == "ut_exit" && musl) ||
3856         // `can_addr` is an anonymous union
3857         (struct_ == "sockaddr_can" && field == "can_addr")
3858     });
3859 
3860     cfg.volatile_item(|i| {
3861         use ctest::VolatileItemKind::*;
3862         match i {
3863             // aio_buf is a volatile void** but since we cannot express that in
3864             // Rust types, we have to explicitly tell the checker about it here:
3865             StructField(ref n, ref f) if n == "aiocb" && f == "aio_buf" => true,
3866             _ => false,
3867         }
3868     });
3869 
3870     cfg.skip_field(move |struct_, field| {
3871         // this is actually a union on linux, so we can't represent it well and
3872         // just insert some padding.
3873         (struct_ == "siginfo_t" && field == "_pad") ||
3874         // musl names this __dummy1 but it's still there
3875         (musl && struct_ == "glob_t" && field == "gl_flags") ||
3876         // musl seems to define this as an *anonymous* bitfield
3877         (musl && struct_ == "statvfs" && field == "__f_unused") ||
3878         // sigev_notify_thread_id is actually part of a sigev_un union
3879         (struct_ == "sigevent" && field == "sigev_notify_thread_id") ||
3880         // signalfd had SIGSYS fields added in Linux 4.18, but no libc release
3881         // has them yet.
3882         (struct_ == "signalfd_siginfo" && (field == "ssi_addr_lsb" ||
3883                                            field == "_pad2" ||
3884                                            field == "ssi_syscall" ||
3885                                            field == "ssi_call_addr" ||
3886                                            field == "ssi_arch")) ||
3887         // FIXME: After musl 1.1.24, it have only one field `sched_priority`,
3888         // while other fields become reserved.
3889         (struct_ == "sched_param" && [
3890             "sched_ss_low_priority",
3891             "sched_ss_repl_period",
3892             "sched_ss_init_budget",
3893             "sched_ss_max_repl",
3894         ].contains(&field) && musl) ||
3895         // FIXME: After musl 1.1.24, the type becomes `int` instead of `unsigned short`.
3896         (struct_ == "ipc_perm" && field == "__seq" && aarch64_musl) ||
3897         // glibc uses unnamed fields here and Rust doesn't support that yet
3898         (struct_ == "timex" && field.starts_with("__unused")) ||
3899         // FIXME: It now takes mode_t since glibc 2.31 on some targets.
3900         (struct_ == "ipc_perm" && field == "mode"
3901             && ((x86_64 || i686 || arm || riscv64) && gnu || x86_64_gnux32)
3902         ) ||
3903         // the `u` field is in fact an anonymous union
3904         (gnu && struct_ == "ptrace_syscall_info" && (field == "u" || field == "pad")) ||
3905         // the vregs field is a `__uint128_t` C's type.
3906         (struct_ == "user_fpsimd_struct" && field == "vregs") ||
3907         // Linux >= 5.11 tweaked the `svm_zero` field of the `sockaddr_vm` struct.
3908         // https://github.com/torvalds/linux/commit/dc8eeef73b63ed8988224ba6b5ed19a615163a7f
3909         (struct_ == "sockaddr_vm" && field == "svm_zero") ||
3910         // the `ifr_ifru` field is an anonymous union
3911         (struct_ == "ifreq" && field == "ifr_ifru") ||
3912         // glibc uses a single array `uregs` instead of individual fields.
3913         (struct_ == "user_regs" && arm)
3914     });
3915 
3916     cfg.skip_roundtrip(move |s| match s {
3917         // FIXME:
3918         "utsname" if mips32 || mips64 => true,
3919         // FIXME:
3920         "mcontext_t" if s390x => true,
3921         // FIXME: This is actually a union.
3922         "fpreg_t" if s390x => true,
3923 
3924         "sockaddr_un" | "sembuf" | "ff_constant_effect" if mips32 && (gnu || musl) => true,
3925         "ipv6_mreq"
3926         | "ip_mreq_source"
3927         | "sockaddr_in6"
3928         | "sockaddr_ll"
3929         | "in_pktinfo"
3930         | "arpreq"
3931         | "arpreq_old"
3932         | "sockaddr_un"
3933         | "ff_constant_effect"
3934         | "ff_ramp_effect"
3935         | "ff_condition_effect"
3936         | "Elf32_Ehdr"
3937         | "Elf32_Chdr"
3938         | "ucred"
3939         | "in6_pktinfo"
3940         | "sockaddr_nl"
3941         | "termios"
3942         | "nlmsgerr"
3943             if (mips64 || sparc64) && gnu =>
3944         {
3945             true
3946         }
3947 
3948         // FIXME: the call ABI of max_align_t is incorrect on these platforms:
3949         "max_align_t" if i686 || mips64 || ppc64 => true,
3950 
3951         _ => false,
3952     });
3953 
3954     cfg.generate("../src/lib.rs", "main.rs");
3955 
3956     test_linux_like_apis(target);
3957 }
3958 
3959 // This function tests APIs that are incompatible to test when other APIs
3960 // are included (e.g. because including both sets of headers clashes)
3961 fn test_linux_like_apis(target: &str) {
3962     let gnu = target.contains("gnu");
3963     let musl = target.contains("musl") || target.contains("ohos");
3964     let linux = target.contains("linux");
3965     let emscripten = target.contains("emscripten");
3966     let android = target.contains("android");
3967     assert!(linux || android || emscripten);
3968 
3969     if linux || android || emscripten {
3970         // test strerror_r from the `string.h` header
3971         let mut cfg = ctest_cfg();
3972         cfg.skip_type(|_| true).skip_static(|_| true);
3973 
3974         headers! { cfg: "string.h" }
3975         cfg.skip_fn(|f| match f {
3976             "strerror_r" => false,
3977             _ => true,
3978         })
3979         .skip_const(|_| true)
3980         .skip_struct(|_| true);
3981         cfg.generate("../src/lib.rs", "linux_strerror_r.rs");
3982     }
3983 
3984     if linux || android || emscripten {
3985         // test fcntl - see:
3986         // http://man7.org/linux/man-pages/man2/fcntl.2.html
3987         let mut cfg = ctest_cfg();
3988 
3989         if musl {
3990             cfg.header("fcntl.h");
3991         } else {
3992             cfg.header("linux/fcntl.h");
3993         }
3994 
3995         cfg.skip_type(|_| true)
3996             .skip_static(|_| true)
3997             .skip_struct(|_| true)
3998             .skip_fn(|_| true)
3999             .skip_const(move |name| match name {
4000                 // test fcntl constants:
4001                 "F_CANCELLK" | "F_ADD_SEALS" | "F_GET_SEALS" | "F_SEAL_SEAL" | "F_SEAL_SHRINK"
4002                 | "F_SEAL_GROW" | "F_SEAL_WRITE" => false,
4003                 _ => true,
4004             })
4005             .type_name(move |ty, is_struct, is_union| match ty {
4006                 t if is_struct => format!("struct {}", t),
4007                 t if is_union => format!("union {}", t),
4008                 t => t.to_string(),
4009             });
4010 
4011         cfg.generate("../src/lib.rs", "linux_fcntl.rs");
4012     }
4013 
4014     if linux || android {
4015         // test termios
4016         let mut cfg = ctest_cfg();
4017         cfg.header("asm/termbits.h");
4018         cfg.header("linux/termios.h");
4019         cfg.skip_type(|_| true)
4020             .skip_static(|_| true)
4021             .skip_fn(|_| true)
4022             .skip_const(|c| match c {
4023                 "BOTHER" | "IBSHIFT" => false,
4024                 "TCGETS2" | "TCSETS2" | "TCSETSW2" | "TCSETSF2" => false,
4025                 _ => true,
4026             })
4027             .skip_struct(|s| s != "termios2")
4028             .type_name(move |ty, is_struct, is_union| match ty {
4029                 "Ioctl" if gnu => "unsigned long".to_string(),
4030                 "Ioctl" => "int".to_string(),
4031                 t if is_struct => format!("struct {}", t),
4032                 t if is_union => format!("union {}", t),
4033                 t => t.to_string(),
4034             });
4035         cfg.generate("../src/lib.rs", "linux_termios.rs");
4036     }
4037 
4038     if linux || android {
4039         // test IPV6_ constants:
4040         let mut cfg = ctest_cfg();
4041         headers! {
4042             cfg:
4043             "linux/in6.h"
4044         }
4045         cfg.skip_type(|_| true)
4046             .skip_static(|_| true)
4047             .skip_fn(|_| true)
4048             .skip_const(|_| true)
4049             .skip_struct(|_| true)
4050             .skip_const(move |name| match name {
4051                 "IPV6_FLOWINFO"
4052                 | "IPV6_FLOWLABEL_MGR"
4053                 | "IPV6_FLOWINFO_SEND"
4054                 | "IPV6_FLOWINFO_FLOWLABEL"
4055                 | "IPV6_FLOWINFO_PRIORITY" => false,
4056                 _ => true,
4057             })
4058             .type_name(move |ty, is_struct, is_union| match ty {
4059                 t if is_struct => format!("struct {}", t),
4060                 t if is_union => format!("union {}", t),
4061                 t => t.to_string(),
4062             });
4063         cfg.generate("../src/lib.rs", "linux_ipv6.rs");
4064     }
4065 
4066     if linux || android {
4067         // Test Elf64_Phdr and Elf32_Phdr
4068         // These types have a field called `p_type`, but including
4069         // "resolve.h" defines a `p_type` macro that expands to `__p_type`
4070         // making the tests for these fails when both are included.
4071         let mut cfg = ctest_cfg();
4072         cfg.header("elf.h");
4073         cfg.skip_fn(|_| true)
4074             .skip_static(|_| true)
4075             .skip_const(|_| true)
4076             .type_name(move |ty, _is_struct, _is_union| ty.to_string())
4077             .skip_struct(move |ty| match ty {
4078                 "Elf64_Phdr" | "Elf32_Phdr" => false,
4079                 _ => true,
4080             })
4081             .skip_type(move |ty| match ty {
4082                 "Elf64_Phdr" | "Elf32_Phdr" => false,
4083                 _ => true,
4084             });
4085         cfg.generate("../src/lib.rs", "linux_elf.rs");
4086     }
4087 
4088     if linux || android {
4089         // Test `ARPHRD_CAN`.
4090         let mut cfg = ctest_cfg();
4091         cfg.header("linux/if_arp.h");
4092         cfg.skip_fn(|_| true)
4093             .skip_static(|_| true)
4094             .skip_const(move |name| match name {
4095                 "ARPHRD_CAN" => false,
4096                 _ => true,
4097             })
4098             .skip_struct(|_| true)
4099             .skip_type(|_| true);
4100         cfg.generate("../src/lib.rs", "linux_if_arp.rs");
4101     }
4102 }
4103 
4104 fn which_freebsd() -> Option<i32> {
4105     let output = std::process::Command::new("freebsd-version")
4106         .output()
4107         .ok()?;
4108     if !output.status.success() {
4109         return None;
4110     }
4111 
4112     let stdout = String::from_utf8(output.stdout).ok()?;
4113 
4114     match &stdout {
4115         s if s.starts_with("10") => Some(10),
4116         s if s.starts_with("11") => Some(11),
4117         s if s.starts_with("12") => Some(12),
4118         s if s.starts_with("13") => Some(13),
4119         s if s.starts_with("14") => Some(14),
4120         _ => None,
4121     }
4122 }
4123 
4124 fn test_haiku(target: &str) {
4125     assert!(target.contains("haiku"));
4126 
4127     let mut cfg = ctest_cfg();
4128     cfg.flag("-Wno-deprecated-declarations");
4129     cfg.define("__USE_GNU", Some("1"));
4130     cfg.define("_GNU_SOURCE", None);
4131     cfg.language(ctest::Lang::CXX);
4132 
4133     // POSIX API
4134     headers! { cfg:
4135                "alloca.h",
4136                "arpa/inet.h",
4137                "arpa/nameser.h",
4138                "arpa/nameser_compat.h",
4139                "assert.h",
4140                "complex.h",
4141                "ctype.h",
4142                "dirent.h",
4143                "div_t.h",
4144                "dlfcn.h",
4145                "endian.h",
4146                "errno.h",
4147                "fcntl.h",
4148                "fenv.h",
4149                "fnmatch.h",
4150                "fts.h",
4151                "ftw.h",
4152                "getopt.h",
4153                "glob.h",
4154                "grp.h",
4155                "inttypes.h",
4156                "iovec.h",
4157                "langinfo.h",
4158                "libgen.h",
4159                "libio.h",
4160                "limits.h",
4161                "locale.h",
4162                "malloc.h",
4163                "malloc_debug.h",
4164                "math.h",
4165                "memory.h",
4166                "monetary.h",
4167                "net/if.h",
4168                "net/if_dl.h",
4169                "net/if_media.h",
4170                "net/if_tun.h",
4171                "net/if_types.h",
4172                "net/route.h",
4173                "netdb.h",
4174                "netinet/in.h",
4175                "netinet/ip.h",
4176                "netinet/ip6.h",
4177                "netinet/ip_icmp.h",
4178                "netinet/ip_var.h",
4179                "netinet/tcp.h",
4180                "netinet/udp.h",
4181                "netinet6/in6.h",
4182                "nl_types.h",
4183                "null.h",
4184                "poll.h",
4185                "pthread.h",
4186                "pwd.h",
4187                "regex.h",
4188                "resolv.h",
4189                "sched.h",
4190                "search.h",
4191                "semaphore.h",
4192                "setjmp.h",
4193                "shadow.h",
4194                "signal.h",
4195                "size_t.h",
4196                "spawn.h",
4197                "stdint.h",
4198                "stdio.h",
4199                "stdlib.h",
4200                "string.h",
4201                "strings.h",
4202                "sys/cdefs.h",
4203                "sys/file.h",
4204                "sys/ioctl.h",
4205                "sys/ipc.h",
4206                "sys/mman.h",
4207                "sys/msg.h",
4208                "sys/param.h",
4209                "sys/poll.h",
4210                "sys/resource.h",
4211                "sys/select.h",
4212                "sys/sem.h",
4213                "sys/socket.h",
4214                "sys/sockio.h",
4215                "sys/stat.h",
4216                "sys/statvfs.h",
4217                "sys/time.h",
4218                "sys/timeb.h",
4219                "sys/times.h",
4220                "sys/types.h",
4221                "sys/uio.h",
4222                "sys/un.h",
4223                "sys/utsname.h",
4224                "sys/wait.h",
4225                "syslog.h",
4226                "tar.h",
4227                "termios.h",
4228                "time.h",
4229                "uchar.h",
4230                "unistd.h",
4231                "utime.h",
4232                "utmpx.h",
4233                "wchar.h",
4234                "wchar_t.h",
4235                "wctype.h"
4236     }
4237 
4238     // BSD Extensions
4239     headers! { cfg:
4240                "ifaddrs.h",
4241                "libutil.h",
4242                "link.h",
4243                "pty.h",
4244                "stringlist.h",
4245                "sys/link_elf.h",
4246     }
4247 
4248     // Native API
4249     headers! { cfg:
4250                "kernel/OS.h",
4251                "kernel/fs_attr.h",
4252                "kernel/fs_index.h",
4253                "kernel/fs_info.h",
4254                "kernel/fs_query.h",
4255                "kernel/fs_volume.h",
4256                "kernel/image.h",
4257                "kernel/scheduler.h",
4258                "storage/FindDirectory.h",
4259                "storage/StorageDefs.h",
4260                "support/Errors.h",
4261                "support/SupportDefs.h",
4262                "support/TypeConstants.h"
4263     }
4264 
4265     cfg.skip_struct(move |ty| {
4266         if ty.starts_with("__c_anonymous_") {
4267             return true;
4268         }
4269         match ty {
4270             // FIXME: actually a union
4271             "sigval" => true,
4272             // FIXME: locale_t does not exist on Haiku
4273             "locale_t" => true,
4274             // FIXME: rusage has a different layout on Haiku
4275             "rusage" => true,
4276             // FIXME?: complains that rust aligns on 4 byte boundary, but
4277             //         Haiku does not align it at all.
4278             "in6_addr" => true,
4279             // The d_name attribute is an array of 1 on Haiku, with the
4280             // intention that the developer allocates a larger or smaller
4281             // piece of memory depending on the expected/actual size of the name.
4282             // Other platforms have sensible defaults. In Rust, the d_name field
4283             // is sized as the _POSIX_MAX_PATH, so that path names will fit in
4284             // newly allocated dirent objects. This breaks the automated tests.
4285             "dirent" => true,
4286             // The following structs contain function pointers, which cannot be initialized
4287             // with mem::zeroed(), so skip the automated test
4288             "image_info" | "thread_info" => true,
4289 
4290             "Elf64_Phdr" => true,
4291 
4292             // is an union
4293             "cpuid_info" => true,
4294 
4295             _ => false,
4296         }
4297     });
4298 
4299     cfg.skip_type(move |ty| {
4300         match ty {
4301             // FIXME: locale_t does not exist on Haiku
4302             "locale_t" => true,
4303             // These cause errors, to be reviewed in the future
4304             "sighandler_t" => true,
4305             "pthread_t" => true,
4306             "pthread_condattr_t" => true,
4307             "pthread_mutexattr_t" => true,
4308             "pthread_rwlockattr_t" => true,
4309             _ => false,
4310         }
4311     });
4312 
4313     cfg.skip_fn(move |name| {
4314         // skip those that are manually verified
4315         match name {
4316             // FIXME: https://github.com/rust-lang/libc/issues/1272
4317             "execv" | "execve" | "execvp" | "execvpe" => true,
4318             // FIXME: does not exist on haiku
4319             "open_wmemstream" => true,
4320             "mlockall" | "munlockall" => true,
4321             "tcgetsid" => true,
4322             "cfsetspeed" => true,
4323             // ignore for now, will be part of Haiku R1 beta 3
4324             "mlock" | "munlock" => true,
4325             // returns const char * on Haiku
4326             "strsignal" => true,
4327             // uses an enum as a parameter argument, which is incorrectly
4328             // translated into a struct argument
4329             "find_path" => true,
4330 
4331             "get_cpuid" => true,
4332 
4333             // uses varargs parameter
4334             "ioctl" => true,
4335 
4336             _ => false,
4337         }
4338     });
4339 
4340     cfg.skip_const(move |name| {
4341         match name {
4342             // FIXME: these constants do not exist on Haiku
4343             "DT_UNKNOWN" | "DT_FIFO" | "DT_CHR" | "DT_DIR" | "DT_BLK" | "DT_REG" | "DT_LNK"
4344             | "DT_SOCK" => true,
4345             "USRQUOTA" | "GRPQUOTA" => true,
4346             "SIGIOT" => true,
4347             "ARPOP_REQUEST" | "ARPOP_REPLY" | "ATF_COM" | "ATF_PERM" | "ATF_PUBL"
4348             | "ATF_USETRAILERS" => true,
4349             // Haiku does not have MAP_FILE, but rustc requires it
4350             "MAP_FILE" => true,
4351             // The following does not exist on Haiku but is required by
4352             // several crates
4353             "FIOCLEX" => true,
4354             // just skip this one, it is not defined on Haiku beta 2 but
4355             // since it is meant as a mask and not a parameter it can exist
4356             // here
4357             "LOG_PRIMASK" => true,
4358             // not defined on Haiku, but [get|set]priority is, so they are
4359             // useful
4360             "PRIO_MIN" | "PRIO_MAX" => true,
4361             //
4362             _ => false,
4363         }
4364     });
4365 
4366     cfg.skip_field(move |struct_, field| {
4367         match (struct_, field) {
4368             // FIXME: the stat struct actually has timespec members, whereas
4369             //        the current representation has these unpacked.
4370             ("stat", "st_atime") => true,
4371             ("stat", "st_atime_nsec") => true,
4372             ("stat", "st_mtime") => true,
4373             ("stat", "st_mtime_nsec") => true,
4374             ("stat", "st_ctime") => true,
4375             ("stat", "st_ctime_nsec") => true,
4376             ("stat", "st_crtime") => true,
4377             ("stat", "st_crtime_nsec") => true,
4378 
4379             // these are actually unions, but we cannot represent it well
4380             ("siginfo_t", "sigval") => true,
4381             ("sem_t", "named_sem_id") => true,
4382             ("sigaction", "sa_sigaction") => true,
4383             ("sigevent", "sigev_value") => true,
4384             ("fpu_state", "_fpreg") => true,
4385             // these fields have a simplified data definition in libc
4386             ("fpu_state", "_xmm") => true,
4387             ("savefpu", "_fp_ymm") => true,
4388 
4389             // skip these enum-type fields
4390             ("thread_info", "state") => true,
4391             ("image_info", "image_type") => true,
4392             _ => false,
4393         }
4394     });
4395 
4396     cfg.skip_roundtrip(move |s| match s {
4397         // FIXME: for some reason the roundtrip check fails for cpu_info
4398         "cpu_info" => true,
4399         _ => false,
4400     });
4401 
4402     cfg.type_name(move |ty, is_struct, is_union| {
4403         match ty {
4404             // Just pass all these through, no need for a "struct" prefix
4405             "area_info" | "port_info" | "port_message_info" | "team_info" | "sem_info"
4406             | "team_usage_info" | "thread_info" | "cpu_info" | "system_info"
4407             | "object_wait_info" | "image_info" | "attr_info" | "index_info" | "fs_info"
4408             | "FILE" | "DIR" | "Dl_info" => ty.to_string(),
4409 
4410             // enums don't need a prefix
4411             "directory_which" | "path_base_directory" => ty.to_string(),
4412 
4413             // is actually a union
4414             "sigval" => format!("union sigval"),
4415             t if is_union => format!("union {}", t),
4416             t if t.ends_with("_t") => t.to_string(),
4417             t if is_struct => format!("struct {}", t),
4418             t => t.to_string(),
4419         }
4420     });
4421 
4422     cfg.field_name(move |struct_, field| {
4423         match field {
4424             // Field is named `type` in C but that is a Rust keyword,
4425             // so these fields are translated to `type_` in the bindings.
4426             "type_" if struct_ == "object_wait_info" => "type".to_string(),
4427             "type_" if struct_ == "sem_t" => "type".to_string(),
4428             "type_" if struct_ == "attr_info" => "type".to_string(),
4429             "type_" if struct_ == "index_info" => "type".to_string(),
4430             "image_type" if struct_ == "image_info" => "type".to_string(),
4431             s => s.to_string(),
4432         }
4433     });
4434     cfg.generate("../src/lib.rs", "main.rs");
4435 }
4436