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Clean libc-test for apple targets 

This cleans up the build.rs of `libc-test` for apple targets.

I wanted to update the docker containers of some targets so that we can start
testing newer currently-skipped APIs properly, but it is impossible to figure
out which headers and APIs are skipped for each target.

This PR separates the testing of apple targets into its own self-contained
function. This allows seeing exactly which headers are included, and which items
are skipped. A lot of work will be required to separate the testing of all major
platforms and make the script reasonable.

During the clean up, I discovered that, at least for apple targets, deprecated
but not removed APIs are not tested. I re-enabled testing for those, and fixed
`daemon`, which was not properly linking its symbol. I also added the
`#[deprecated]` attribute to the `#[deprecated]` APIs of the apple targets. The
attribute is available since Rust 1.9.0 and the min. Rust version we support is
Rust 1.13.0.

Many other APIs are also currently not tested "because they are weird" which I
interpret as "the test failed for an unknown reason", as a consequence:

* the signatures of execv, execve, and execvp are incorrect (see
  https://github.com/rust-lang/libc/issues/1272)

* the `sig_t` type is called `sighandler_t` in libc for some reason:
  https://github.com/rust-lang/libc/issues/1273

This probably explains why some other things, like the
`sa_handler`/`sa_sigaction` fields of `sigaction` were skipped. The field is
actually a union, which can be either a `sig_t` for the `sa_handler` field, or
some other type for the `sa_sigaction` field, but because the distinction was
not made, the field was not checked.

The latest ctest version can check volatile pointers, so a couple of skipped
tests are now tested using this feature.
This commit is contained in:
gnzlbg 2019-02-22 14:10:52 +01:00
parent 8c571e0ce9
commit f5cbdbc2b9
14 changed files with 269 additions and 132 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

320
libc-test/build.rs
View File

@ -23,7 +23,6 @@ fn do_ctest() {
let linux = target.contains("unknown-linux");
let android = target.contains("android");
let apple = target.contains("apple");
let ios = target.contains("apple-ios");
let emscripten = target.contains("asm");
let musl = target.contains("musl") || emscripten;
let uclibc = target.contains("uclibc");
@ -39,13 +38,15 @@ fn do_ctest() {
let bsdlike = freebsd || apple || netbsd || openbsd || dragonfly;
let mut cfg = ctest::TestGenerator::new();
if apple {
return test_apple(&target);
}
// Pull in extra goodies
if linux || android || emscripten {
cfg.define("_GNU_SOURCE", None);
} else if netbsd {
cfg.define("_NETBSD_SOURCE", Some("1"));
} else if apple {
cfg.define("__APPLE_USE_RFC_3542", None);
} else if windows {
cfg.define("_WIN32_WINNT", Some("0x8000"));
} else if solaris {
@ -98,10 +99,8 @@ fn do_ctest() {
cfg.header("sys/socket.h");
}
cfg.header("net/if.h");
if !ios {
cfg.header("net/route.h");
cfg.header("net/if_arp.h");
}
cfg.header("net/route.h");
cfg.header("net/if_arp.h");
if linux || android {
cfg.header("linux/if_alg.h");
}
@ -132,7 +131,7 @@ fn do_ctest() {
cfg.header("pwd.h");
cfg.header("grp.h");
cfg.header("sys/utsname.h");
if !solaris && !ios {
if !solaris {
cfg.header("sys/ptrace.h");
}
cfg.header("sys/mount.h");
@ -185,33 +184,6 @@ fn do_ctest() {
}
}
if apple {
cfg.header("spawn.h");
cfg.header("mach-o/dyld.h");
cfg.header("mach/mach_time.h");
cfg.header("malloc/malloc.h");
cfg.header("util.h");
cfg.header("xlocale.h");
cfg.header("sys/xattr.h");
if target.starts_with("x86") && !ios {
cfg.header("crt_externs.h");
}
cfg.header("netinet/in.h");
cfg.header("sys/ipc.h");
cfg.header("sys/sem.h");
cfg.header("sys/shm.h");
if !ios {
cfg.header("sys/sys_domain.h");
cfg.header("net/if_utun.h");
cfg.header("net/bpf.h");
cfg.header("net/route.h");
cfg.header("netinet/if_ether.h");
cfg.header("sys/proc_info.h");
cfg.header("sys/kern_control.h");
}
}
if bsdlike {
cfg.header("sys/event.h");
cfg.header("net/if_dl.h");
@ -364,7 +336,7 @@ fn do_ctest() {
cfg.header("sys/loadavg.h");
}
if linux || freebsd || dragonfly || netbsd || apple || emscripten {
if linux || freebsd || dragonfly || netbsd || emscripten {
if !uclibc {
cfg.header("aio.h");
}
@ -426,9 +398,7 @@ fn do_ctest() {
// Our stat *_nsec fields normally don't actually exist but are part
// of a timeval struct
s if s.ends_with("_nsec") && struct_.starts_with("stat") => {
if target2.contains("apple") {
s.replace("_nsec", "spec.tv_nsec")
} else if target2.contains("android") {
if target2.contains("android") {
s.to_string()
} else {
s.replace("e_nsec", ".tv_nsec")
@ -466,11 +436,6 @@ fn do_ctest() {
// which is absent in glibc, has to be defined.
"__timeval" if linux => true,
// Fixed on feature=align with repr(packed(4))
// Once repr_packed stabilizes we can fix this unconditionally
// and remove this check.
"kevent" | "shmid_ds" | "semid_ds" if apple && x86_64 => true,
// This is actually a union, not a struct
"sigval" => true,
@ -487,26 +452,13 @@ fn do_ctest() {
// header conflicts when including them with all the other structs.
"termios2" => true,
// Present on historical versions of iOS but missing in more recent
// SDKs
"bpf_hdr" | "proc_taskinfo" | "proc_taskallinfo"
| "proc_bsdinfo" | "proc_threadinfo" | "sockaddr_inarp"
| "sockaddr_ctl" | "arphdr"
if ios =>
{
true
}
_ => false,
}
});
cfg.skip_signededness(move |c| {
match c {
"LARGE_INTEGER"
| "mach_timebase_info_data_t"
| "float"
| "double" => true,
"LARGE_INTEGER" | "float" | "double" => true,
// uuid_t is a struct, not an integer.
"uuid_t" if dragonfly => true,
n if n.starts_with("pthread") => true,
@ -515,9 +467,6 @@ fn do_ctest() {
// mqd_t is a pointer on FreeBSD and DragonFly
"mqd_t" if freebsd || dragonfly => true,
// Just some typedefs on osx, no need to check their sign
"posix_spawnattr_t" | "posix_spawn_file_actions_t" => true,
// windows-isms
n if n.starts_with("P") => true,
n if n.starts_with("H") => true,
@ -562,9 +511,6 @@ fn do_ctest() {
"MS_NOUSER" => true,
"MS_RMT_MASK" => true, // updated in glibc 2.22 and musl 1.1.13
// These OSX constants are flagged as deprecated
"NOTE_EXIT_REPARENTED" | "NOTE_REAP" if apple => true,
// These constants were removed in FreeBSD 11 (svn r273250) but will
// still be accepted and ignored at runtime.
"MAP_RENAME" | "MAP_NORESERVE" if freebsd => true,
@ -590,11 +536,6 @@ fn do_ctest() {
// These constants were added in FreeBSD 12
"SF_USER_READAHEAD" | "SO_REUSEPORT_LB" if freebsd => true,
// These OSX constants are removed in Sierra.
// https://developer.apple.com/library/content/releasenotes/General/APIDiffsMacOS10_12/Swift/Darwin.html
"KERN_KDENABLE_BG_TRACE" if apple => true,
"KERN_KDDISABLE_BG_TRACE" if apple => true,
// These constants were removed in OpenBSD 6 (https://git.io/v7gBO
// https://git.io/v7gBq)
"KERN_USERMOUNT" | "KERN_ARND" if openbsd => true,
@ -714,34 +655,6 @@ fn do_ctest() {
true
}
// Present on historical versions of iOS, but now removed in more
// recent SDKs
"ARPOP_REQUEST"
| "ARPOP_REPLY"
| "ATF_COM"
| "ATF_PERM"
| "ATF_PUBL"
| "ATF_USETRAILERS"
| "AF_SYS_CONTROL"
| "SYSPROTO_EVENT"
| "PROC_PIDTASKALLINFO"
| "PROC_PIDTASKINFO"
| "PROC_PIDTHREADINFO"
| "UTUN_OPT_FLAGS"
| "UTUN_OPT_IFNAME"
| "BPF_ALIGNMENT"
| "SYSPROTO_CONTROL"
if ios =>
{
true
}
s if ios && s.starts_with("RTF_") => true,
s if ios && s.starts_with("RTM_") => true,
s if ios && s.starts_with("RTA_") => true,
s if ios && s.starts_with("RTAX_") => true,
s if ios && s.starts_with("RTV_") => true,
s if ios && s.starts_with("DLT_") => true,
| "IP_ORIGDSTADDR"
| "IP_RECVORIGDSTADDR"
| "IPV6_ORIGDSTADDR"
@ -784,18 +697,6 @@ fn do_ctest() {
"dlerror" if android => true, // const-ness is added
"dladdr" if musl || solaris => true, // const-ness only added recently
// OSX has 'struct tm *const' which we can't actually represent in
// Rust, but is close enough to *mut
"timegm" if apple => true,
// OSX's daemon is deprecated in 10.5 so we'll get a warning (which
// we turn into an error) so just ignore it.
"daemon" if apple => true,
// Deprecated on OSX
"sem_destroy" if apple => true,
"sem_init" if apple => true,
// These functions presumably exist on netbsd but don't look like
// they're implemented on rumprun yet, just let them slide for now.
// Some of them look like they have headers but then don't have
@ -852,7 +753,6 @@ fn do_ctest() {
// it's in a header file?
"endpwent" if android => true,
// These are either unimplemented or optionally built into uClibc
// or "sysinfo", where it's defined but the structs in linux/sysinfo.h and sys/sysinfo.h
// clash so it can't be tested
@ -867,15 +767,6 @@ fn do_ctest() {
// https://mail.gnome.org/archives/commits-list/2013-May/msg01329.html
"res_init" if android => true,
// On macOS and iOS, res_init is available, but requires linking with libresolv:
// http://blog.achernya.com/2013/03/os-x-has-silly-libsystem.html
// See discussion for skipping here:
// https://github.com/rust-lang/libc/pull/585#discussion_r114561460
"res_init" if apple => true,
// On Mac we don't use the default `close()`, instead using their $NOCANCEL variants.
"close" if apple => true,
// Definition of those functions as changed since unified headers from NDK r14b
// These changes imply some API breaking changes but are still ABI compatible.
// We can wait for the next major release to be compliant with the new API.
@ -894,10 +785,6 @@ fn do_ctest() {
// FIXME: mincore is defined with caddr_t on Solaris.
"mincore" if solaris => true,
// These were all included in historical versions of iOS but appear
// to be removed now
"system" | "ptrace" if ios => true,
// Removed in OpenBSD 6.5
// https://marc.info/?l=openbsd-cvs&m=154723400730318
"mincore" if openbsd => true,
@ -1019,3 +906,190 @@ fn main() {
do_cc();
do_ctest();
}
macro_rules! headers {
($cfg:ident: $header:expr) => {
$cfg.header($header);
};
($cfg:ident: $($header:expr),*) => {
$(headers!($cfg: $header);)*
};
($cfg:ident: $($header:expr,)*) => {
$(headers!($cfg: $header);)*
};
}
fn test_apple(target: &str) {
assert!(target.contains("apple"));
let x86_64 = target.contains("x86_64");
let mut cfg = ctest::TestGenerator::new();
cfg.flag("-Wno-deprecated-declarations");
cfg.define("__APPLE_USE_RFC_3542", None);
headers! { cfg:
"aio.h",
"ctype.h",
"dirent.h",
"dlfcn.h",
"errno.h",
"execinfo.h",
"fcntl.h",
"glob.h",
"grp.h",
"ifaddrs.h",
"langinfo.h",
"limits.h",
"locale.h",
"mach-o/dyld.h",
"mach/mach_time.h",
"malloc/malloc.h",
"net/bpf.h",
"net/if.h",
"net/if_arp.h",
"net/if_dl.h",
"net/if_utun.h",
"net/route.h",
"net/route.h",
"netdb.h",
"netinet/if_ether.h",
"netinet/in.h",
"netinet/in.h",
"netinet/ip.h",
"netinet/tcp.h",
"netinet/udp.h",
"poll.h",
"pthread.h",
"pwd.h",
"resolv.h",
"sched.h",
"semaphore.h",
"signal.h",
"spawn.h",
"stddef.h",
"stdint.h",
"stdio.h",
"stdlib.h",
"string.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/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/types.h",
"sys/uio.h",
"sys/un.h",
"sys/utsname.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",
}
if x86_64 {
headers! { cfg: "crt_externs.h" }
}
cfg.skip_struct(move |ty| {
match ty {
// FIXME: actually a union
"sigval" => 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,
_ => false,
}
});
cfg.skip_fn(move |name| {
// skip those that are manually verified
match name {
// FIXME: https://github.com/rust-lang/libc/issues/1272
"execv" | "execve" | "execvp" => true,
// close calls the close_nocancel system call
"close" => 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.generate("../src/lib.rs", "main.rs");
}

7
libc-test/test/linux_fcntl.rs
View File

@ -1,7 +1,10 @@
#![allow(bad_style, improper_ctypes, unused)]
#![allow(bad_style, improper_ctypes, unused, deprecated)]
extern crate libc;
use libc::*;
#[cfg(any(target_os = "linux", target_os = "android"))]
include!(concat!(env!("OUT_DIR"), "/linux_fcntl.rs"));
#[cfg(not(any(target_os = "linux", target_os = "android")))]
fn main() {}

2
libc-test/test/main.rs
View File

@ -1,4 +1,4 @@
#![allow(bad_style, improper_ctypes)]
#![allow(bad_style, improper_ctypes, deprecated)]
extern crate libc;
use libc::*;

15
src/unix/bsd/apple/mod.rs
View File

@ -139,6 +139,7 @@ s! {
}
pub struct sigaction {
// FIXME: this field is actually a union
pub sa_sigaction: ::sighandler_t,
pub sa_mask: sigset_t,
pub sa_flags: ::c_int,
@ -2255,12 +2256,14 @@ pub const NOTE_NONE: ::uint32_t = 0x00000080;
pub const NOTE_EXIT: ::uint32_t = 0x80000000;
pub const NOTE_FORK: ::uint32_t = 0x40000000;
pub const NOTE_EXEC: ::uint32_t = 0x20000000;
#[deprecated(since="0.2.49", note="Deprecated since MacOSX 10.9")]
pub const NOTE_REAP: ::uint32_t = 0x10000000;
pub const NOTE_SIGNAL: ::uint32_t = 0x08000000;
pub const NOTE_EXITSTATUS: ::uint32_t = 0x04000000;
pub const NOTE_EXIT_DETAIL: ::uint32_t = 0x02000000;
pub const NOTE_PDATAMASK: ::uint32_t = 0x000fffff;
pub const NOTE_PCTRLMASK: ::uint32_t = 0xfff00000;
#[deprecated(since="0.2.49", note="Deprecated since MacOSX 10.9")]
pub const NOTE_EXIT_REPARENTED: ::uint32_t = 0x00080000;
pub const NOTE_EXIT_DETAIL_MASK: ::uint32_t = 0x00070000;
pub const NOTE_EXIT_DECRYPTFAIL: ::uint32_t = 0x00010000;
@ -2466,7 +2469,9 @@ pub const KERN_KDSETRTCDEC: ::c_int = 15;
pub const KERN_KDGETENTROPY: ::c_int = 16;
pub const KERN_KDWRITETR: ::c_int = 17;
pub const KERN_KDWRITEMAP: ::c_int = 18;
#[deprecated(since = "0.2.49", note ="Removed in MacOSX 10.12")]
pub const KERN_KDENABLE_BG_TRACE: ::c_int = 19;
#[deprecated(since = "0.2.49", note ="Removed in MacOSX 10.12")]
pub const KERN_KDDISABLE_BG_TRACE: ::c_int = 20;
pub const KERN_KDREADCURTHRMAP: ::c_int = 21;
pub const KERN_KDSET_TYPEFILTER: ::c_int = 22;
@ -2846,6 +2851,16 @@ f! {
}
extern {
#[deprecated(since="0.2.49", note="Deprecated in MacOSX 10.5")]
#[link_name = "daemon$1050"]
pub fn daemon(nochdir: ::c_int, noclose: ::c_int) -> ::c_int;
#[deprecated(since="0.2.49", note="Deprecated in MacOSX 10.10")]
pub fn sem_destroy(sem: *mut sem_t) -> ::c_int;
#[deprecated(since="0.2.49", note="Deprecated in MacOSX 10.10")]
pub fn sem_init(sem: *mut sem_t,
pshared: ::c_int,
value: ::c_uint)
-> ::c_int;
pub fn aio_read(aiocbp: *mut aiocb) -> ::c_int;
pub fn aio_write(aiocbp: *mut aiocb) -> ::c_int;
pub fn aio_fsync(op: ::c_int, aiocbp: *mut aiocb) -> ::c_int;

8
src/unix/bsd/freebsdlike/mod.rs
View File

@ -1050,6 +1050,14 @@ f! {
}
extern {
pub fn sem_destroy(sem: *mut sem_t) -> ::c_int;
pub fn sem_init(sem: *mut sem_t,
pshared: ::c_int,
value: ::c_uint)
-> ::c_int;
pub fn daemon(nochdir: ::c_int, noclose: ::c_int) -> ::c_int;
pub fn accept4(s: ::c_int, addr: *mut ::sockaddr,
addrlen: *mut ::socklen_t, flags: ::c_int) -> ::c_int;
pub fn aio_read(aiocbp: *mut aiocb) -> ::c_int;

1
src/unix/bsd/mod.rs
View File

@ -623,7 +623,6 @@ extern {
pub fn pthread_cancel(thread: ::pthread_t) -> ::c_int;
pub fn pthread_kill(thread: ::pthread_t, sig: ::c_int) -> ::c_int;
pub fn sem_unlink(name: *const ::c_char) -> ::c_int;
pub fn daemon(nochdir: ::c_int, noclose: ::c_int) -> ::c_int;
#[cfg_attr(target_os = "netbsd", link_name = "__getpwnam_r50")]
#[cfg_attr(target_os = "solaris", link_name = "__posix_getpwnam_r")]
pub fn getpwnam_r(name: *const ::c_char,

7
src/unix/bsd/netbsdlike/mod.rs
View File

@ -597,6 +597,13 @@ pub const TIMER_ABSTIME: ::c_int = 1;
#[link(name = "util")]
extern {
pub fn sem_destroy(sem: *mut sem_t) -> ::c_int;
pub fn sem_init(sem: *mut sem_t,
pshared: ::c_int,
value: ::c_uint)
-> ::c_int;
pub fn daemon(nochdir: ::c_int, noclose: ::c_int) -> ::c_int;
pub fn mincore(addr: *mut ::c_void, len: ::size_t,
vec: *mut ::c_char) -> ::c_int;
#[cfg_attr(target_os = "netbsd", link_name = "__clock_getres50")]

6
src/unix/haiku/mod.rs
View File

@ -1111,6 +1111,12 @@ extern {
#[link(name = "bsd")]
extern {
pub fn sem_destroy(sem: *mut sem_t) -> ::c_int;
pub fn sem_init(sem: *mut sem_t,
pshared: ::c_int,
value: ::c_uint)
-> ::c_int;
pub fn clock_gettime(clk_id: ::c_int, tp: *mut ::timespec) -> ::c_int;
pub fn clock_settime(clk_id: ::c_int, tp: *const ::timespec) -> ::c_int;
pub fn pthread_create(thread: *mut ::pthread_t,

6
src/unix/hermit/mod.rs
View File

@ -705,6 +705,12 @@ f! {
}
extern {
pub fn sem_destroy(sem: *mut sem_t) -> ::c_int;
pub fn sem_init(sem: *mut sem_t,
pshared: ::c_int,
value: ::c_uint)
-> ::c_int;
pub fn abs(i: ::c_int) -> ::c_int;
pub fn atof(s: *const ::c_char) -> ::c_double;
pub fn labs(i: ::c_long) -> ::c_long;

5
src/unix/mod.rs
View File

@ -1021,16 +1021,11 @@ extern {
locale: *const ::c_char) -> *mut ::c_char;
pub fn localeconv() -> *mut lconv;
pub fn sem_destroy(sem: *mut sem_t) -> ::c_int;
#[cfg_attr(all(target_os = "macos", target_arch = "x86"),
link_name = "sem_wait$UNIX2003")]
pub fn sem_wait(sem: *mut sem_t) -> ::c_int;
pub fn sem_trywait(sem: *mut sem_t) -> ::c_int;
pub fn sem_post(sem: *mut sem_t) -> ::c_int;
pub fn sem_init(sem: *mut sem_t,
pshared: ::c_int,
value: ::c_uint)
-> ::c_int;
pub fn statvfs(path: *const c_char, buf: *mut statvfs) -> ::c_int;
pub fn fstatvfs(fd: ::c_int, buf: *mut statvfs) -> ::c_int;

6
src/unix/newlib/mod.rs
View File

@ -568,6 +568,12 @@ f! {
}
extern {
pub fn sem_destroy(sem: *mut sem_t) -> ::c_int;
pub fn sem_init(sem: *mut sem_t,
pshared: ::c_int,
value: ::c_uint)
-> ::c_int;
pub fn abs(i: ::c_int) -> ::c_int;
pub fn atof(s: *const ::c_char) -> ::c_double;
pub fn labs(i: ::c_long) -> ::c_long;

6
src/unix/notbsd/mod.rs
View File

@ -1290,6 +1290,12 @@ f! {
}
extern {
pub fn sem_destroy(sem: *mut sem_t) -> ::c_int;
pub fn sem_init(sem: *mut sem_t,
pshared: ::c_int,
value: ::c_uint)
-> ::c_int;
pub fn fdatasync(fd: ::c_int) -> ::c_int;
pub fn mincore(addr: *mut ::c_void, len: ::size_t,
vec: *mut ::c_uchar) -> ::c_int;

6
src/unix/solarish/mod.rs
View File

@ -1557,6 +1557,12 @@ f! {
}
extern {
pub fn sem_destroy(sem: *mut sem_t) -> ::c_int;
pub fn sem_init(sem: *mut sem_t,
pshared: ::c_int,
value: ::c_uint)
-> ::c_int;
pub fn abs(i: ::c_int) -> ::c_int;
pub fn acct(filename: *const ::c_char) -> ::c_int;
pub fn atof(s: *const ::c_char) -> ::c_double;

6
src/unix/uclibc/mod.rs
View File

@ -1481,6 +1481,12 @@ f! {
}
extern {
pub fn sem_destroy(sem: *mut sem_t) -> ::c_int;
pub fn sem_init(sem: *mut sem_t,
pshared: ::c_int,
value: ::c_uint)
-> ::c_int;
pub fn abs(i: ::c_int) -> ::c_int;
pub fn atof(s: *const ::c_char) -> ::c_double;
pub fn labs(i: ::c_long) -> ::c_long;