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build.rs
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build.rs
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#![deny(warnings)]
extern crate ctest2 as ctest;
use std::fs::File;
use std::io::{BufRead, BufReader, BufWriter, Write};
use std::path::{Path, PathBuf};
use std::{env, io};
fn do_cc() {
let target = env::var("TARGET").unwrap();
if cfg!(unix) {
let exclude = ["redox", "wasi"];
if !exclude.iter().any(|x| target.contains(x)) {
let mut cmsg = cc::Build::new();
cmsg.file("src/cmsg.c");
if target.contains("solaris") || target.contains("illumos") {
cmsg.define("_XOPEN_SOURCE", "700");
}
cmsg.compile("cmsg");
}
if target.contains("linux")
|| target.contains("android")
|| target.contains("emscripten")
|| target.contains("fuchsia")
|| target.contains("bsd")
{
cc::Build::new().file("src/makedev.c").compile("makedev");
}
}
if target.contains("android") || target.contains("linux") {
cc::Build::new().file("src/errqueue.c").compile("errqueue");
}
if target.contains("linux")
|| target.contains("l4re")
|| target.contains("android")
|| target.contains("emscripten")
{
cc::Build::new().file("src/sigrt.c").compile("sigrt");
}
}
fn do_ctest() {
match &env::var("TARGET").unwrap() {
t if t.contains("android") => return test_android(t),
t if t.contains("apple") => return test_apple(t),
t if t.contains("dragonfly") => return test_dragonflybsd(t),
t if t.contains("emscripten") => return test_emscripten(t),
t if t.contains("freebsd") => return test_freebsd(t),
t if t.contains("haiku") => return test_haiku(t),
t if t.contains("linux") => return test_linux(t),
t if t.contains("netbsd") => return test_netbsd(t),
t if t.contains("openbsd") => return test_openbsd(t),
t if t.contains("redox") => return test_redox(t),
t if t.contains("solaris") => return test_solarish(t),
t if t.contains("illumos") => return test_solarish(t),
t if t.contains("wasi") => return test_wasi(t),
t if t.contains("windows") => return test_windows(t),
t if t.contains("vxworks") => return test_vxworks(t),
t if t.contains("nto-qnx") => return test_neutrino(t),
t => panic!("unknown target {}", t),
}
}
fn ctest_cfg() -> ctest::TestGenerator {
ctest::TestGenerator::new()
}
fn do_semver() {
let mut out = PathBuf::from(env::var("OUT_DIR").unwrap());
out.push("semver.rs");
let mut output = BufWriter::new(File::create(&out).unwrap());
let family = env::var("CARGO_CFG_TARGET_FAMILY").unwrap();
let vendor = env::var("CARGO_CFG_TARGET_VENDOR").unwrap();
let os = env::var("CARGO_CFG_TARGET_OS").unwrap();
let arch = env::var("CARGO_CFG_TARGET_ARCH").unwrap();
let target_env = env::var("CARGO_CFG_TARGET_ENV").unwrap();
// `libc-test/semver` dir.
let mut semver_root = PathBuf::from("semver");
// NOTE: Windows has the same `family` as `os`, no point in including it
// twice.
// NOTE: Android doesn't include the unix file (or the Linux file) because
// there are some many definitions missing it's actually easier just to
// maintain a file for Android.
if family != os && os != "android" {
process_semver_file(&mut output, &mut semver_root, &family);
}
// We don't do semver for unknown targets.
if vendor != "unknown" {
process_semver_file(&mut output, &mut semver_root, &vendor);
}
process_semver_file(&mut output, &mut semver_root, &os);
let os_arch = format!("{}-{}", os, arch);
process_semver_file(&mut output, &mut semver_root, &os_arch);
if target_env != "" {
let os_env = format!("{}-{}", os, target_env);
process_semver_file(&mut output, &mut semver_root, &os_env);
let os_env_arch = format!("{}-{}-{}", os, target_env, arch);
process_semver_file(&mut output, &mut semver_root, &os_env_arch);
}
}
fn process_semver_file<W: Write, P: AsRef<Path>>(output: &mut W, path: &mut PathBuf, file: P) {
// NOTE: `path` is reused between calls, so always remove the file again.
path.push(file);
path.set_extension("txt");
println!("cargo:rerun-if-changed={}", path.display());
let input_file = match File::open(&*path) {
Ok(file) => file,
Err(ref err) if err.kind() == io::ErrorKind::NotFound => {
path.pop();
return;
}
Err(err) => panic!("unexpected error opening file: {}", err),
};
let input = BufReader::new(input_file);
write!(output, "// Source: {}.\n", path.display()).unwrap();
output.write(b"use libc::{\n").unwrap();
for line in input.lines() {
let line = line.unwrap().into_bytes();
match line.first() {
// Ignore comments and empty lines.
Some(b'#') | None => continue,
_ => {
output.write(b" ").unwrap();
output.write(&line).unwrap();
output.write(b",\n").unwrap();
}
}
}
output.write(b"};\n\n").unwrap();
path.pop();
}
fn main() {
// Avoid unnecessary re-building.
println!("cargo:rerun-if-changed=build.rs");
do_cc();
do_ctest();
do_semver();
}
macro_rules! headers {
($cfg:ident: [$m:expr]: $header:literal) => {
if $m {
$cfg.header($header);
}
};
($cfg:ident: $header:literal) => {
$cfg.header($header);
};
($($cfg:ident: $([$c:expr]:)* $header:literal,)*) => {
$(headers!($cfg: $([$c]:)* $header);)*
};
($cfg:ident: $( $([$c:expr]:)* $header:literal,)*) => {
headers!($($cfg: $([$c]:)* $header,)*);
};
($cfg:ident: $( $([$c:expr]:)* $header:literal),*) => {
headers!($($cfg: $([$c]:)* $header,)*);
};
}
fn test_apple(target: &str) {
assert!(target.contains("apple"));
let x86_64 = target.contains("x86_64");
let i686 = target.contains("i686");
let mut cfg = ctest_cfg();
cfg.flag("-Wno-deprecated-declarations");
cfg.define("__APPLE_USE_RFC_3542", None);
headers! { cfg:
"aio.h",
"CommonCrypto/CommonCrypto.h",
"CommonCrypto/CommonRandom.h",
"copyfile.h",
"crt_externs.h",
"ctype.h",
"dirent.h",
"dlfcn.h",
"errno.h",
"execinfo.h",
"fcntl.h",
"getopt.h",
"glob.h",
"grp.h",
"iconv.h",
"ifaddrs.h",
"langinfo.h",
"libgen.h",
"libproc.h",
"limits.h",
"locale.h",
"malloc/malloc.h",
"net/bpf.h",
"net/dlil.h",
"net/if.h",
"net/if_arp.h",
"net/if_dl.h",
"net/if_utun.h",
"net/if_var.h",
"net/ndrv.h",
"net/route.h",
"netdb.h",
"netinet/if_ether.h",
"netinet/in.h",
"netinet/ip.h",
"netinet/tcp.h",
"netinet/udp.h",
"netinet6/in6_var.h",
"os/clock.h",
"os/lock.h",
"os/signpost.h",
// FIXME: Requires the macOS 14.4 SDK.
//"os/os_sync_wait_on_address.h",
"poll.h",
"pthread.h",
"pthread_spis.h",
"pthread/introspection.h",
"pthread/spawn.h",
"pthread/stack_np.h",
"pwd.h",
"regex.h",
"resolv.h",
"sched.h",
"semaphore.h",
"signal.h",
"spawn.h",
"stddef.h",
"stdint.h",
"stdio.h",
"stdlib.h",
"string.h",
"sysdir.h",
"sys/appleapiopts.h",
"sys/attr.h",
"sys/clonefile.h",
"sys/event.h",
"sys/file.h",
"sys/ioctl.h",
"sys/ipc.h",
"sys/kern_control.h",
"sys/mman.h",
"sys/mount.h",
"sys/proc_info.h",
"sys/ptrace.h",
"sys/quota.h",
"sys/random.h",
"sys/resource.h",
"sys/sem.h",
"sys/shm.h",
"sys/socket.h",
"sys/stat.h",
"sys/statvfs.h",
"sys/sys_domain.h",
"sys/sysctl.h",
"sys/time.h",
"sys/times.h",
"sys/timex.h",
"sys/types.h",
"sys/uio.h",
"sys/un.h",
"sys/utsname.h",
"sys/vsock.h",
"sys/wait.h",
"sys/xattr.h",
"syslog.h",
"termios.h",
"time.h",
"unistd.h",
"util.h",
"utime.h",
"utmpx.h",
"wchar.h",
"xlocale.h",
[x86_64]: "crt_externs.h",
}
cfg.skip_struct(move |ty| {
if ty.starts_with("__c_anonymous_") {
return true;
}
match ty {
// FIXME: actually a union
"sigval" => true,
// FIXME: The size is changed in recent macOSes.
"malloc_zone_t" => true,
// it is a moving target, changing through versions
// also contains bitfields members
"tcp_connection_info" => true,
// FIXME: The size is changed in recent macOSes.
"malloc_introspection_t" => true,
// sonoma changes the padding `rmx_filler` field.
"rt_metrics" => true,
_ => false,
}
});
cfg.skip_type(move |ty| {
if ty.starts_with("__c_anonymous_") {
return true;
}
match ty {
// FIXME: Requires the macOS 14.4 SDK.
"os_sync_wake_by_address_flags_t" | "os_sync_wait_on_address_flags_t" => true,
_ => false,
}
});
cfg.skip_const(move |name| {
match name {
// These OSX constants are removed in Sierra.
// https://developer.apple.com/library/content/releasenotes/General/APIDiffsMacOS10_12/Swift/Darwin.html
"KERN_KDENABLE_BG_TRACE" | "KERN_KDDISABLE_BG_TRACE" => true,
// FIXME: the value has been changed since Catalina (0xffff0000 -> 0x3fff0000).
"SF_SETTABLE" => true,
// FIXME: XCode 13.1 doesn't have it.
"TIOCREMOTE" => true,
// FIXME: Requires the macOS 14.4 SDK.
"OS_SYNC_WAKE_BY_ADDRESS_NONE"
| "OS_SYNC_WAKE_BY_ADDRESS_SHARED"
| "OS_SYNC_WAIT_ON_ADDRESS_NONE"
| "OS_SYNC_WAIT_ON_ADDRESS_SHARED" => true,
_ => false,
}
});
cfg.skip_fn(move |name| {
// skip those that are manually verified
match name {
// close calls the close_nocancel system call
"close" => true,
// FIXME: std removed libresolv support: https://github.com/rust-lang/rust/pull/102766
"res_init" => true,
// FIXME: remove once the target in CI is updated
"pthread_jit_write_freeze_callbacks_np" => true,
// FIXME: ABI has been changed on recent macOSes.
"os_unfair_lock_assert_owner" | "os_unfair_lock_assert_not_owner" => true,
// FIXME: Once the SDK get updated to Ventura's level
"freadlink" | "mknodat" | "mkfifoat" => true,
// FIXME: Requires the macOS 14.4 SDK.
"os_sync_wake_by_address_any"
| "os_sync_wake_by_address_all"
| "os_sync_wake_by_address_flags_t"
| "os_sync_wait_on_address"
| "os_sync_wait_on_address_flags_t"
| "os_sync_wait_on_address_with_deadline"
| "os_sync_wait_on_address_with_timeout" => true,
_ => false,
}
});
cfg.skip_field(move |struct_, field| {
match (struct_, field) {
// FIXME: the array size has been changed since macOS 10.15 ([8] -> [7]).
("statfs", "f_reserved") => true,
("__darwin_arm_neon_state64", "__v") => true,
// MAXPATHLEN is too big for auto-derive traits on arrays.
("vnode_info_path", "vip_path") => true,
("ifreq", "ifr_ifru") => true,
("in6_ifreq", "ifr_ifru") => true,
("ifkpi", "ifk_data") => true,
("ifconf", "ifc_ifcu") => true,
_ => false,
}
});
cfg.skip_field_type(move |struct_, field| {
match (struct_, field) {
// FIXME: actually a union
("sigevent", "sigev_value") => true,
_ => false,
}
});
cfg.volatile_item(|i| {
use ctest::VolatileItemKind::*;
match i {
StructField(ref n, ref f) if n == "aiocb" && f == "aio_buf" => true,
_ => false,
}
});
cfg.type_name(move |ty, is_struct, is_union| {
match ty {
// Just pass all these through, no need for a "struct" prefix
"FILE" | "DIR" | "Dl_info" => ty.to_string(),
// OSX calls this something else
"sighandler_t" => "sig_t".to_string(),
t if is_union => format!("union {}", t),
t if t.ends_with("_t") => t.to_string(),
t if is_struct => format!("struct {}", t),
t => t.to_string(),
}
});
cfg.field_name(move |struct_, field| {
match field {
s if s.ends_with("_nsec") && struct_.starts_with("stat") => {
s.replace("e_nsec", "espec.tv_nsec")
}
// FIXME: sigaction actually contains a union with two variants:
// a sa_sigaction with type: (*)(int, struct __siginfo *, void *)
// a sa_handler with type sig_t
"sa_sigaction" if struct_ == "sigaction" => "sa_handler".to_string(),
s => s.to_string(),
}
});
cfg.skip_roundtrip(move |s| match s {
// FIXME: this type has the wrong ABI
"max_align_t" if i686 => true,
// Can't return an array from a C function.
"uuid_t" | "vol_capabilities_set_t" => true,
_ => false,
});
cfg.generate("../src/lib.rs", "main.rs");
}
fn test_openbsd(target: &str) {
assert!(target.contains("openbsd"));
let mut cfg = ctest_cfg();
cfg.flag("-Wno-deprecated-declarations");
let x86_64 = target.contains("x86_64");
headers! { cfg:
"elf.h",
"errno.h",
"execinfo.h",
"fcntl.h",
"getopt.h",
"libgen.h",
"limits.h",
"link.h",
"locale.h",
"stddef.h",
"stdint.h",
"stdio.h",
"stdlib.h",
"sys/stat.h",
"sys/types.h",
"time.h",
"wchar.h",
"ctype.h",
"dirent.h",
"sys/socket.h",
[x86_64]:"machine/fpu.h",
"net/if.h",
"net/route.h",
"net/if_arp.h",
"netdb.h",
"netinet/in.h",
"netinet/ip.h",
"netinet/tcp.h",
"netinet/udp.h",
"net/bpf.h",
"regex.h",
"resolv.h",
"pthread.h",
"dlfcn.h",
"search.h",
"spawn.h",
"signal.h",
"string.h",
"sys/file.h",
"sys/futex.h",
"sys/ioctl.h",
"sys/ipc.h",
"sys/mman.h",
"sys/param.h",
"sys/resource.h",
"sys/shm.h",
"sys/socket.h",
"sys/time.h",
"sys/uio.h",
"sys/ktrace.h",
"sys/un.h",
"sys/wait.h",
"unistd.h",
"utime.h",
"pwd.h",
"grp.h",
"sys/utsname.h",
"sys/ptrace.h",
"sys/mount.h",
"sys/uio.h",
"sched.h",
"termios.h",
"poll.h",
"syslog.h",
"semaphore.h",
"sys/statvfs.h",
"sys/times.h",
"glob.h",
"ifaddrs.h",
"langinfo.h",
"sys/sysctl.h",
"utmp.h",
"sys/event.h",
"net/if_dl.h",
"util.h",
"ufs/ufs/quota.h",
"pthread_np.h",
"sys/reboot.h",
"sys/syscall.h",
"sys/shm.h",
"sys/param.h",
}
cfg.skip_struct(move |ty| {
if ty.starts_with("__c_anonymous_") {
return true;
}
match ty {
// FIXME: actually a union
"sigval" => true,
_ => false,
}
});
cfg.skip_fn(move |name| {
match name {
// futex() has volatile arguments, but that doesn't exist in Rust.
"futex" => true,
_ => false,
}
});
cfg.type_name(move |ty, is_struct, is_union| {
match ty {
// Just pass all these through, no need for a "struct" prefix
"FILE" | "DIR" | "Dl_info" | "Elf32_Phdr" | "Elf64_Phdr" => ty.to_string(),
// OSX calls this something else
"sighandler_t" => "sig_t".to_string(),
t if is_union => format!("union {}", t),
t if t.ends_with("_t") => t.to_string(),
t if is_struct => format!("struct {}", t),
t => t.to_string(),
}
});
cfg.field_name(move |struct_, field| match field {
"st_birthtime" if struct_.starts_with("stat") => "__st_birthtime".to_string(),
"st_birthtime_nsec" if struct_.starts_with("stat") => "__st_birthtimensec".to_string(),
s if s.ends_with("_nsec") && struct_.starts_with("stat") => s.replace("e_nsec", ".tv_nsec"),
"sa_sigaction" if struct_ == "sigaction" => "sa_handler".to_string(),
s => s.to_string(),
});
cfg.skip_field_type(move |struct_, field| {
// type siginfo_t.si_addr changed from OpenBSD 6.0 to 6.1
struct_ == "siginfo_t" && field == "si_addr"
});
cfg.skip_field(|struct_, field| {
match (struct_, field) {
// conflicting with `p_type` macro from <resolve.h>.
("Elf32_Phdr", "p_type") => true,
("Elf64_Phdr", "p_type") => true,
// ifr_ifru is defined is an union
("ifreq", "ifr_ifru") => true,
_ => false,
}
});
cfg.generate("../src/lib.rs", "main.rs");
}
fn test_windows(target: &str) {
assert!(target.contains("windows"));
let gnu = target.contains("gnu");
let i686 = target.contains("i686");
let mut cfg = ctest_cfg();
if target.contains("msvc") {
cfg.flag("/wd4324");
}
cfg.define("_WIN32_WINNT", Some("0x8000"));
headers! { cfg:
"direct.h",
"errno.h",
"fcntl.h",
"io.h",
"limits.h",
"locale.h",
"process.h",
"signal.h",
"stddef.h",
"stdint.h",
"stdio.h",
"stdlib.h",
"sys/stat.h",
"sys/types.h",
"sys/utime.h",
"time.h",
"wchar.h",
[gnu]: "ws2tcpip.h",
[!gnu]: "Winsock2.h",
}
cfg.type_name(move |ty, is_struct, is_union| {
match ty {
// Just pass all these through, no need for a "struct" prefix
"FILE" | "DIR" | "Dl_info" => ty.to_string(),
// FIXME: these don't exist:
"time64_t" => "__time64_t".to_string(),
"ssize_t" => "SSIZE_T".to_string(),
"sighandler_t" if !gnu => "_crt_signal_t".to_string(),
"sighandler_t" if gnu => "__p_sig_fn_t".to_string(),
t if is_union => format!("union {}", t),
t if t.ends_with("_t") => t.to_string(),
// Windows uppercase structs don't have `struct` in front:
t if is_struct => {
if ty.chars().next().unwrap().is_uppercase() {
t.to_string()
} else if t == "stat" {
"struct __stat64".to_string()
} else if t == "utimbuf" {
"struct __utimbuf64".to_string()
} else {
// put `struct` in front of all structs:
format!("struct {}", t)
}
}
t => t.to_string(),
}
});
cfg.fn_cname(move |name, cname| cname.unwrap_or(name).to_string());
cfg.skip_type(move |name| match name {
"SSIZE_T" if !gnu => true,
"ssize_t" if !gnu => true,
// FIXME: The size and alignment of this type are incorrect
"time_t" if gnu && i686 => true,
_ => false,
});
cfg.skip_struct(move |ty| {
if ty.starts_with("__c_anonymous_") {
return true;
}
match ty {
// FIXME: The size and alignment of this struct are incorrect
"timespec" if gnu && i686 => true,
_ => false,
}
});
cfg.skip_const(move |name| {
match name {
// FIXME: API error:
// SIG_ERR type is "void (*)(int)", not "int"
"SIG_ERR" |
// Similar for SIG_DFL/IGN/GET/SGE/ACK
"SIG_DFL" | "SIG_IGN" | "SIG_GET" | "SIG_SGE" | "SIG_ACK" => true,
// FIXME: newer windows-gnu environment on CI?
"_O_OBTAIN_DIR" if gnu => true,
_ => false,
}
});
cfg.skip_field(move |s, field| match s {
"CONTEXT" if field == "Fp" => true,
_ => false,
});
// FIXME: All functions point to the wrong addresses?
cfg.skip_fn_ptrcheck(|_| true);
cfg.skip_signededness(move |c| {
match c {
// windows-isms
n if n.starts_with("P") => true,
n if n.starts_with("H") => true,
n if n.starts_with("LP") => true,
"sighandler_t" if gnu => true,
_ => false,
}
});
cfg.skip_fn(|_| false);
cfg.generate("../src/lib.rs", "main.rs");
}
fn test_redox(target: &str) {
assert!(target.contains("redox"));
let mut cfg = ctest_cfg();
cfg.flag("-Wno-deprecated-declarations");
headers! {
cfg:
"ctype.h",
"dirent.h",
"dlfcn.h",
"errno.h",
"fcntl.h",
"grp.h",
"limits.h",
"locale.h",
"netdb.h",
"netinet/in.h",
"netinet/ip.h",
"netinet/tcp.h",
"poll.h",
"pwd.h",
"semaphore.h",
"string.h",
"strings.h",
"sys/file.h",
"sys/ioctl.h",
"sys/mman.h",
"sys/ptrace.h",
"sys/resource.h",
"sys/socket.h",
"sys/stat.h",
"sys/statvfs.h",
"sys/time.h",
"sys/types.h",
"sys/uio.h",
"sys/un.h",
"sys/utsname.h",
"sys/wait.h",
"termios.h",
"time.h",
"unistd.h",
"utime.h",
"wchar.h",
}
cfg.generate("../src/lib.rs", "main.rs");
}
fn test_solarish(target: &str) {
let is_solaris = target.contains("solaris");
let is_illumos = target.contains("illumos");
assert!(is_solaris || is_illumos);
// ctest generates arguments supported only by clang, so make sure to run with CC=clang.
// While debugging, "CFLAGS=-ferror-limit=<large num>" is useful to get more error output.
let mut cfg = ctest_cfg();
cfg.flag("-Wno-deprecated-declarations");
cfg.define("_XOPEN_SOURCE", Some("700"));
cfg.define("__EXTENSIONS__", None);
cfg.define("_LCONV_C99", None);
headers! {
cfg:
"ctype.h",
"dirent.h",
"dlfcn.h",
"door.h",
"errno.h",
"execinfo.h",
"fcntl.h",
"getopt.h",
"glob.h",
"grp.h",
"ifaddrs.h",
"langinfo.h",
"limits.h",
"link.h",
"locale.h",
"mqueue.h",
"net/if.h",
"net/if_arp.h",
"net/route.h",
"netdb.h",
"netinet/in.h",
"netinet/ip.h",
"netinet/tcp.h",
"netinet/udp.h",
"poll.h",
"port.h",
"pthread.h",
"pwd.h",
"resolv.h",
"sched.h",
"semaphore.h",
"signal.h",
"stddef.h",
"stdint.h",
"stdio.h",
"stdlib.h",
"string.h",
"sys/auxv.h",
"sys/epoll.h",
"sys/eventfd.h",
"sys/file.h",
"sys/filio.h",
"sys/ioctl.h",
"sys/lgrp_user.h",
"sys/loadavg.h",
"sys/mkdev.h",
"sys/mman.h",
"sys/mount.h",
"sys/priv.h",
"sys/pset.h",
"sys/random.h",
"sys/resource.h",
"sys/sendfile.h",
"sys/socket.h",
"sys/stat.h",
"sys/statvfs.h",
"sys/stropts.h",
"sys/shm.h",
"sys/systeminfo.h",
"sys/time.h",
"sys/times.h",
"sys/timex.h",
"sys/types.h",
"sys/uio.h",
"sys/un.h",
"sys/utsname.h",
"sys/wait.h",
"syslog.h",
"termios.h",
"thread.h",
"time.h",
"priv.h",
"ucontext.h",
"unistd.h",
"utime.h",
"utmpx.h",
"wchar.h",
}
cfg.skip_type(move |ty| match ty {
"sighandler_t" => true,
_ => false,
});
cfg.type_name(move |ty, is_struct, is_union| match ty {
"FILE" => "__FILE".to_string(),
"DIR" | "Dl_info" => ty.to_string(),
t if t.ends_with("_t") => t.to_string(),
t if is_struct => format!("struct {}", t),
t if is_union => format!("union {}", t),
t => t.to_string(),
});
cfg.field_name(move |struct_, field| {
match struct_ {
// rust struct uses raw u64, rather than union
"epoll_event" if field == "u64" => "data.u64".to_string(),
// rust struct was committed with typo for Solaris
"door_arg_t" if field == "dec_num" => "desc_num".to_string(),
"stat" if field.ends_with("_nsec") => {
// expose stat.Xtim.tv_nsec fields
field.trim_end_matches("e_nsec").to_string() + ".tv_nsec"
}
_ => field.to_string(),
}
});
cfg.skip_const(move |name| match name {
"DT_FIFO" | "DT_CHR" | "DT_DIR" | "DT_BLK" | "DT_REG" | "DT_LNK" | "DT_SOCK"
| "USRQUOTA" | "GRPQUOTA" | "PRIO_MIN" | "PRIO_MAX" => true,
// skip sighandler_t assignments
"SIG_DFL" | "SIG_ERR" | "SIG_IGN" => true,
"DT_UNKNOWN" => true,
"_UTX_LINESIZE" | "_UTX_USERSIZE" | "_UTX_PADSIZE" | "_UTX_IDSIZE" | "_UTX_HOSTSIZE" => {
true
}
"EADI" | "EXTPROC" | "IPC_SEAT" => true,
// This evaluates to a sysconf() call rather than a constant
"PTHREAD_STACK_MIN" => true,
// EPOLLEXCLUSIVE is a relatively recent addition to the epoll interface and may not be
// defined on older systems. It is, however, safe to use on systems which do not
// explicitly support it. (A no-op is an acceptable implementation of EPOLLEXCLUSIVE.)
"EPOLLEXCLUSIVE" => true,
_ => false,
});
cfg.skip_struct(move |ty| {
if ty.starts_with("__c_anonymous_") {
return true;
}
// the union handling is a mess
if ty.contains("door_desc_t_") {
return true;
}
match ty {
// union, not a struct
"sigval" => true,
// a bunch of solaris-only fields
"utmpx" if is_illumos => true,
_ => false,
}
});
cfg.skip_field(move |s, field| {
match s {
// C99 sizing on this is tough
"dirent" if field == "d_name" => true,
// the union/macro makes this rough
"sigaction" if field == "sa_sigaction" => true,
// Missing in illumos
"sigevent" if field == "ss_sp" => true,
// Avoid sigval union issues
"sigevent" if field == "sigev_value" => true,
// const issues
"sigevent" if field == "sigev_notify_attributes" => true,
// Avoid const and union issues
"door_arg" if field == "desc_ptr" => true,
"door_desc_t" if field == "d_data" => true,
"door_arg_t" if field.ends_with("_ptr") => true,
"door_arg_t" if field.ends_with("rbuf") => true,
// anonymous union challenges
"fpregset_t" if field == "fp_reg_set" => true,
// The LX brand (integrated into some illumos distros) commandeered several of the
// `uc_filler` fields to use for brand-specific state.
"ucontext_t" if is_illumos && (field == "uc_filler" || field == "uc_brand_data") => {
true
}
_ => false,
}
});
cfg.skip_fn(move |name| {
// skip those that are manually verified
match name {
// const-ness only added recently
"dladdr" => true,
// Definition of those functions as changed since unified headers
// from NDK r14b These changes imply some API breaking changes but
// are still ABI compatible. We can wait for the next major release
// to be compliant with the new API.
//
// FIXME: unskip these for next major release
"setpriority" | "personality" => true,
// signal is defined in terms of sighandler_t, so ignore
"signal" => true,
// Currently missing
"cfmakeraw" | "cfsetspeed" => true,
// const-ness issues
"settimeofday" | "sethostname" => true,
// Solaris-different
"getpwent_r" | "getgrent_r" | "updwtmpx" if is_illumos => true,
"madvise" | "mprotect" if is_illumos => true,
"door_call" | "door_return" | "door_create" if is_illumos => true,
// The compat functions use these "native" functions linked to their
// non-prefixed implementations in libc.
"native_getpwent_r" | "native_getgrent_r" => true,
// Not visible when build with _XOPEN_SOURCE=700