libc-rs/libc-test/build.rs
2016-09-27 07:19:17 +02:00

471 lines
15 KiB
Rust

#![deny(warnings)]
extern crate ctest;
use std::env;
fn main() {
let target = env::var("TARGET").unwrap();
let x86_64 = target.contains("x86_64");
let windows = target.contains("windows");
let mingw = target.contains("windows-gnu");
let linux = target.contains("unknown-linux");
let android = target.contains("android");
let apple = target.contains("apple");
let musl = target.contains("musl");
let freebsd = target.contains("freebsd");
let dragonfly = target.contains("dragonfly");
let mips = target.contains("mips");
let netbsd = target.contains("netbsd");
let openbsd = target.contains("openbsd");
let rumprun = target.contains("rumprun");
let bsdlike = freebsd || apple || netbsd || openbsd || dragonfly;
let mut cfg = ctest::TestGenerator::new();
// Pull in extra goodies
if linux || android {
cfg.define("_GNU_SOURCE", None);
} else if netbsd {
cfg.define("_NETBSD_SOURCE", Some("1"));
} else if windows {
cfg.define("_WIN32_WINNT", Some("0x8000"));
}
// Android doesn't actually have in_port_t but it's much easier if we
// provide one for us to test against
if android {
cfg.define("in_port_t", Some("uint16_t"));
}
cfg.header("errno.h")
.header("fcntl.h")
.header("limits.h")
.header("locale.h")
.header("stddef.h")
.header("stdint.h")
.header("stdio.h")
.header("stdlib.h")
.header("sys/stat.h")
.header("sys/types.h")
.header("time.h")
.header("wchar.h");
if windows {
cfg.header("winsock2.h"); // must be before windows.h
cfg.header("direct.h");
cfg.header("io.h");
cfg.header("sys/utime.h");
cfg.header("windows.h");
cfg.header("process.h");
cfg.header("ws2ipdef.h");
if target.contains("gnu") {
cfg.header("ws2tcpip.h");
}
} else {
cfg.flag("-Wno-deprecated-declarations");
cfg.header("ctype.h");
cfg.header("dirent.h");
if openbsd {
cfg.header("sys/socket.h");
}
cfg.header("net/if.h");
cfg.header("netdb.h");
cfg.header("netinet/in.h");
cfg.header("netinet/ip.h");
cfg.header("netinet/tcp.h");
cfg.header("pthread.h");
cfg.header("dlfcn.h");
cfg.header("signal.h");
cfg.header("string.h");
cfg.header("sys/file.h");
cfg.header("sys/ioctl.h");
cfg.header("sys/mman.h");
cfg.header("sys/resource.h");
cfg.header("sys/socket.h");
cfg.header("sys/time.h");
cfg.header("sys/un.h");
cfg.header("sys/wait.h");
cfg.header("unistd.h");
cfg.header("utime.h");
cfg.header("pwd.h");
cfg.header("grp.h");
cfg.header("sys/utsname.h");
cfg.header("sys/ptrace.h");
cfg.header("sys/mount.h");
cfg.header("sys/uio.h");
cfg.header("sched.h");
cfg.header("termios.h");
cfg.header("poll.h");
cfg.header("syslog.h");
cfg.header("semaphore.h");
}
if android {
cfg.header("arpa/inet.h");
cfg.header("time64.h");
cfg.header("xlocale.h");
cfg.header("utmp.h");
} else if !windows {
cfg.header("glob.h");
cfg.header("ifaddrs.h");
cfg.header("sys/statvfs.h");
cfg.header("langinfo.h");
if !openbsd && !freebsd && !dragonfly {
cfg.header("sys/quota.h");
}
if !musl {
cfg.header("sys/sysctl.h");
if !netbsd && !openbsd {
cfg.header("execinfo.h");
cfg.header("xlocale.h");
}
if openbsd {
cfg.header("utmp.h");
} else {
cfg.header("utmpx.h");
}
}
}
if apple {
cfg.header("mach-o/dyld.h");
cfg.header("mach/mach_time.h");
cfg.header("malloc/malloc.h");
cfg.header("util.h");
if target.starts_with("x86") {
cfg.header("crt_externs.h");
}
}
if bsdlike {
cfg.header("sys/event.h");
if freebsd {
cfg.header("libutil.h");
} else {
cfg.header("util.h");
}
}
if linux {
cfg.header("mqueue.h");
cfg.header("ucontext.h");
cfg.header("sys/signalfd.h");
cfg.header("sys/xattr.h");
cfg.header("sys/ipc.h");
cfg.header("sys/msg.h");
cfg.header("sys/shm.h");
cfg.header("pty.h");
cfg.header("shadow.h");
}
if linux || android {
cfg.header("malloc.h");
cfg.header("net/ethernet.h");
cfg.header("netpacket/packet.h");
cfg.header("sched.h");
cfg.header("sys/epoll.h");
cfg.header("sys/eventfd.h");
cfg.header("sys/prctl.h");
cfg.header("sys/sendfile.h");
cfg.header("sys/vfs.h");
cfg.header("sys/syscall.h");
cfg.header("sys/sysinfo.h");
cfg.header("sys/reboot.h");
if !musl {
cfg.header("linux/netlink.h");
cfg.header("linux/magic.h");
cfg.header("linux/reboot.h");
if !mips {
cfg.header("linux/quota.h");
}
}
}
if freebsd {
cfg.header("pthread_np.h");
cfg.header("sched.h");
cfg.header("ufs/ufs/quota.h");
}
if netbsd {
cfg.header("ufs/ufs/quota.h");
cfg.header("ufs/ufs/quota1.h");
cfg.header("sys/ioctl_compat.h");
}
if openbsd {
cfg.header("ufs/ufs/quota.h");
cfg.header("rpcsvc/rex.h");
cfg.header("pthread_np.h");
cfg.header("sys/syscall.h");
}
if dragonfly {
cfg.header("ufs/ufs/quota.h");
cfg.header("pthread_np.h");
cfg.header("sys/ioctl_compat.h");
}
cfg.type_name(move |ty, is_struct| {
match ty {
// Just pass all these through, no need for a "struct" prefix
"FILE" |
"fd_set" |
"Dl_info" |
"DIR" => ty.to_string(),
// Fixup a few types on windows that don't actually exist.
"time64_t" if windows => "__time64_t".to_string(),
"ssize_t" if windows => "SSIZE_T".to_string(),
// OSX calls this something else
"sighandler_t" if bsdlike => "sig_t".to_string(),
t if t.ends_with("_t") => t.to_string(),
// Windows uppercase structs don't have `struct` in front, there's a
// few special cases for windows, and then otherwise put `struct` in
// front of everything.
t if is_struct => {
if windows && ty.chars().next().unwrap().is_uppercase() {
t.to_string()
} else if windows && t == "stat" {
"struct __stat64".to_string()
} else if windows && t == "utimbuf" {
"struct __utimbuf64".to_string()
} else {
format!("struct {}", t)
}
}
t => t.to_string(),
}
});
let target2 = target.clone();
cfg.field_name(move |struct_, field| {
match field {
"st_birthtime" if openbsd && struct_ == "stat" => "__st_birthtime".to_string(),
"st_birthtime_nsec" if openbsd && struct_ == "stat" => "__st_birthtimensec".to_string(),
// 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") {
s.to_string()
} else {
s.replace("e_nsec", ".tv_nsec")
}
}
"u64" if struct_ == "epoll_event" => "data.u64".to_string(),
s => s.to_string(),
}
});
cfg.skip_type(move |ty| {
match ty {
// sighandler_t is crazy across platforms
"sighandler_t" => true,
_ => false
}
});
cfg.skip_struct(move |ty| {
match ty {
"sockaddr_nl" => musl,
// On Linux, the type of `ut_tv` field of `struct utmpx`
// can be an anonymous struct, so an extra struct,
// which is absent in glibc, has to be defined.
"__timeval" if linux => true,
// The alignment of this is 4 on 64-bit OSX...
"kevent" if apple && x86_64 => true,
_ => false
}
});
cfg.skip_signededness(move |c| {
match c {
"LARGE_INTEGER" |
"mach_timebase_info_data_t" |
"float" |
"double" => true,
// uuid_t is a struct, not an integer.
"uuid_t" if dragonfly => true,
n if n.starts_with("pthread") => true,
// sem_t is a struct or pointer
"sem_t" if openbsd || freebsd || rumprun => true,
// windows-isms
n if n.starts_with("P") => true,
n if n.starts_with("H") => true,
n if n.starts_with("LP") => true,
_ => false,
}
});
cfg.skip_const(move |name| {
match name {
// Apparently these don't exist in mingw headers?
"MEM_RESET_UNDO" |
"FILE_ATTRIBUTE_NO_SCRUB_DATA" |
"FILE_ATTRIBUTE_INTEGRITY_STREAM" |
"ERROR_NOTHING_TO_TERMINATE" if mingw => true,
"SIG_IGN" => true, // sighandler_t weirdness
// types on musl are defined a little differently
n if musl && n.contains("__SIZEOF_PTHREAD") => true,
// Skip constants not defined in MUSL but just passed down to the
// kernel regardless
"RLIMIT_NLIMITS" |
"TCP_COOKIE_TRANSACTIONS" |
"RLIMIT_RTTIME" |
"MSG_COPY" if musl => true,
// work around super old mips toolchain
"SCHED_IDLE" | "SHM_NORESERVE" => mips,
// weird signed extension or something like that?
"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,
// The linux/quota.h header file which defines these can't be
// included with sys/quota.h currently on MIPS, so we don't include
// it and just ignore these constants
"QFMT_VFS_OLD" |
"QFMT_VFS_V0" if mips && linux => true,
_ => false,
}
});
cfg.skip_fn(move |name| {
// skip those that are manually verified
match name {
"execv" | // crazy stuff with const/mut
"execve" |
"execvp" |
"execvpe" => true,
"getrlimit" | "getrlimit64" | // non-int in 1st arg
"setrlimit" | "setrlimit64" | // non-int in 1st arg
"prlimit" | "prlimit64" | // non-int in 2nd arg
"strerror_r" if linux => true, // actually xpg-something-or-other
// typed 2nd arg on linux and android
"gettimeofday" if linux || android || freebsd || openbsd || dragonfly => true,
// not declared in newer android toolchains
"getdtablesize" if android => true,
"dlerror" if android => true, // const-ness is added
"dladdr" if musl => 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
// corresponding actual definitions either...
"shm_open" |
"shm_unlink" |
"syscall" |
"ptrace" |
"sigaltstack" if rumprun => true,
// There seems to be a small error in EGLIBC's eventfd.h header. The
// [underlying system call][1] always takes its first `count`
// argument as an `unsigned int`, but [EGLIBC's <sys/eventfd.h>
// header][2] declares it to take an `int`. [GLIBC's header][3]
// matches the kernel.
//
// EGLIBC is no longer actively developed, and Debian, the largest
// distribution that had been using it, switched back to GLIBC in
// April 2015. So effectively all Linux <sys/eventfd.h> headers will
// be using `unsigned int` soon.
//
// [1]: https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/fs/eventfd.c?id=refs/tags/v3.12.51#n397
// [2]: http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/trusty/eglibc/trusty/view/head:/sysdeps/unix/sysv/linux/sys/eventfd.h
// [3]: https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/sys/eventfd.h;h=6295f32e937e779e74318eb9d3bdbe76aef8a8f3;hb=4e42b5b8f89f0e288e68be7ad70f9525aebc2cff#l34
"eventfd" if linux => true,
// The `uname` funcion in freebsd is now an inline wrapper that
// delegates to another, but the symbol still exists, so don't check
// the symbol.
"uname" if freebsd => true,
_ => false,
}
});
cfg.skip_fn_ptrcheck(move |name| {
match name {
// dllimport weirdness?
_ if windows => true,
_ => false,
}
});
cfg.skip_field_type(move |struct_, field| {
// This is a weird union, don't check the type.
(struct_ == "ifaddrs" && field == "ifa_ifu") ||
// sighandler_t type is super weird
(struct_ == "sigaction" && field == "sa_sigaction") ||
// __timeval type is a patch which doesn't exist in glibc
(linux && struct_ == "utmpx" && field == "ut_tv")
});
cfg.skip_field(move |struct_, field| {
// this is actually a union on linux, so we can't represent it well and
// just insert some padding.
(struct_ == "siginfo_t" && field == "_pad") ||
// musl names this __dummy1 but it's still there
(musl && struct_ == "glob_t" && field == "gl_flags") ||
// musl seems to define this as an *anonymous* bitfield
(musl && struct_ == "statvfs" && field == "__f_unused")
});
cfg.fn_cname(move |name, cname| {
if windows {
cname.unwrap_or(name).to_string()
} else {
name.to_string()
}
});
if env::var("SKIP_COMPILE").is_ok() {
cfg.generate_files("../src/lib.rs", "all.rs");
} else {
cfg.generate("../src/lib.rs", "all.rs");
}
}