diff --git a/ci/docker/wasm32-unknown-wasi/Dockerfile b/ci/docker/wasm32-unknown-wasi/Dockerfile index 6f46440457d3c6d91b6700b54e868a6a91d5e357..deac87a69305edca23940835ad19331b5d3871ff 100644 --- a/ci/docker/wasm32-unknown-wasi/Dockerfile +++ b/ci/docker/wasm32-unknown-wasi/Dockerfile @@ -28,7 +28,7 @@ RUN mv /clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-18.04 /wasmcc # those breaking changes on `libc`'s own CI RUN git clone https://github.com/CraneStation/wasi-sysroot && \ cd wasi-sysroot && \ - git reset --hard e5f14be38362f1ab83302895a6e74b2ffd0e2302 + git reset --hard 2201343c17b7149a75f543f523bea0c3243c6091 RUN make -C wasi-sysroot install -j $(nproc) WASM_CC=/wasmcc/bin/clang INSTALL_DIR=/wasi-sysroot # This is a small wrapper script which executes the actual clang binary in diff --git a/libc-test/build.rs b/libc-test/build.rs index 72ebbb3ca7e1b36c05ed9b5700a579a2a27b2ceb..aba2a3056852c30f71e7f1ff333cb03f2803eb56 100644 --- a/libc-test/build.rs +++ b/libc-test/build.rs @@ -1875,17 +1875,28 @@ fn test_wasi(target: &str) { cfg.define("_GNU_SOURCE", None); headers! { cfg: + "ctype.h", + "dirent.h", "errno.h", "fcntl.h", "limits.h", "locale.h", "malloc.h", + "poll.h", + "stdbool.h", "stddef.h", "stdint.h", "stdio.h", "stdlib.h", + "string.h", + "sys/resource.h", + "sys/select.h", + "sys/socket.h", "sys/stat.h", + "sys/times.h", "sys/types.h", + "sys/uio.h", + "sys/utsname.h", "time.h", "unistd.h", "wasi/core.h", @@ -1895,7 +1906,7 @@ fn test_wasi(target: &str) { } cfg.type_name(move |ty, is_struct, is_union| match ty { - "FILE" => ty.to_string(), + "FILE" | "fd_set" | "DIR" => ty.to_string(), t if is_union => format!("union {}", t), t if t.starts_with("__wasi") && t.ends_with("_u") => { format!("union {}", t) @@ -1920,5 +1931,9 @@ fn test_wasi(target: &str) { // import the same thing but have different function pointers cfg.skip_fn_ptrcheck(|f| f.starts_with("__wasi")); + // d_name is declared as a flexible array in WASI libc, so it + // doesn't support sizeof. + cfg.skip_field(|s, field| s == "dirent" && field == "d_name"); + cfg.generate("../src/lib.rs", "main.rs"); } diff --git a/src/lib.rs b/src/lib.rs index 2571f81a6cfbd99b5583d452a4e6149627702a8f..426b6849624893906d345790453eb40f3dfbf7b1 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -112,7 +112,7 @@ cfg_if! { } else if #[cfg(all(target_env = "sgx", target_vendor = "fortanix"))] { mod sgx; pub use sgx::*; - } else if #[cfg(target_env = "wasi")] { + } else if #[cfg(any(target_env = "wasi", target_os = "wasi"))] { mod wasi; pub use wasi::*; } else { diff --git a/src/wasi.rs b/src/wasi.rs index 77c48f50a6010f9111fd696e4596edcd7d4ab770..a014e4c0fa330f9fdf4c0042c35be6d3d5450f69 100644 --- a/src/wasi.rs +++ b/src/wasi.rs @@ -26,6 +26,17 @@ pub type clock_t = c_longlong; pub type time_t = c_longlong; pub type c_double = f64; pub type c_float = f32; +pub type ino_t = u64; +pub type sigset_t = c_uchar; +pub type suseconds_t = c_longlong; +pub type mode_t = u32; +pub type dev_t = u64; +pub type uid_t = u32; +pub type gid_t = u32; +pub type nlink_t = u64; +pub type blksize_t = c_long; +pub type blkcnt_t = i64; +pub type nfds_t = c_ulong; pub type __wasi_advice_t = u8; pub type __wasi_clockid_t = u32; @@ -57,14 +68,17 @@ pub type __wasi_userdata_t = u64; pub type __wasi_whence_t = u8; pub type __wasi_preopentype_t = u8; +#[allow(missing_copy_implementations)] #[cfg_attr(feature = "extra_traits", derive(Debug))] pub enum FILE {} -impl ::Copy for FILE {} -impl ::Clone for FILE { - fn clone(&self) -> FILE { - *self - } -} +#[allow(missing_copy_implementations)] +#[cfg_attr(feature = "extra_traits", derive(Debug))] +pub enum DIR {} +#[allow(missing_copy_implementations)] +#[cfg_attr(feature = "extra_traits", derive(Debug))] +pub enum __locale_struct {} + +pub type locale_t = *mut __locale_struct; s! { #[repr(align(8))] @@ -87,16 +101,89 @@ s! { pub __tm_nsec: c_int, } + pub struct timeval { + pub tv_sec: time_t, + pub tv_usec: suseconds_t, + } + pub struct timespec { pub tv_sec: time_t, pub tv_nsec: c_long, } + pub struct tms { + pub tms_utime: clock_t, + pub tms_stime: clock_t, + pub tms_cutime: clock_t, + pub tms_cstime: clock_t, + } + pub struct itimerspec { pub it_interval: timespec, pub it_value: timespec, } + pub struct iovec { + pub iov_base: *mut c_void, + pub iov_len: size_t, + } + + pub struct lconv { + pub decimal_point: *mut c_char, + pub thousands_sep: *mut c_char, + pub grouping: *mut c_char, + pub int_curr_symbol: *mut c_char, + pub currency_symbol: *mut c_char, + pub mon_decimal_point: *mut c_char, + pub mon_thousands_sep: *mut c_char, + pub mon_grouping: *mut c_char, + pub positive_sign: *mut c_char, + pub negative_sign: *mut c_char, + pub int_frac_digits: c_char, + pub frac_digits: c_char, + pub p_cs_precedes: c_char, + pub p_sep_by_space: c_char, + pub n_cs_precedes: c_char, + pub n_sep_by_space: c_char, + pub p_sign_posn: c_char, + pub n_sign_posn: c_char, + pub int_p_cs_precedes: c_char, + pub int_p_sep_by_space: c_char, + pub int_n_cs_precedes: c_char, + pub int_n_sep_by_space: c_char, + pub int_p_sign_posn: c_char, + pub int_n_sign_posn: c_char, + } + + pub struct pollfd { + pub fd: c_int, + pub events: c_short, + pub revents: c_short, + } + + pub struct rusage { + pub ru_utime: timeval, + pub ru_stime: timeval, + } + + pub struct stat { + pub st_dev: dev_t, + pub st_ino: ino_t, + pub st_nlink: nlink_t, + pub st_mode: mode_t, + pub st_uid: uid_t, + pub st_gid: gid_t, + __pad0: c_uint, + pub st_rdev: dev_t, + pub st_size: off_t, + pub st_blksize: blksize_t, + pub st_blocks: blkcnt_t, + pub st_atim: timespec, + pub st_mtim: timespec, + pub st_ctim: timespec, + __reserved: [c_longlong; 3], + } + pub struct __wasi_dirent_t { pub d_next: __wasi_dircookie_t, pub d_ino: __wasi_inode_t, @@ -197,12 +284,137 @@ s_no_extra_traits! { } +// Declare dirent outside of s! so that it doesn't implement Copy, Eq, Hash, +// etc., since it contains a flexible array member with a dynamic size. +#[repr(C)] +#[allow(missing_copy_implementations)] +#[cfg_attr(feature = "extra_traits", derive(Debug))] +pub struct dirent { + pub d_ino: ino_t, + pub d_type: c_uchar, + /// d_name is declared in WASI libc as a flexible array member, which + /// can't be directly expressed in Rust. As an imperfect workaround, + /// declare it as a zero-length array instead. + pub d_name: [c_char; 0], +} + +pub const EXIT_SUCCESS: c_int = 0; +pub const EXIT_FAILURE: c_int = 1; pub const STDIN_FILENO: c_int = 0; pub const STDOUT_FILENO: c_int = 1; pub const STDERR_FILENO: c_int = 2; pub const SEEK_SET: c_int = 2; pub const SEEK_CUR: c_int = 0; pub const SEEK_END: c_int = 1; +pub const _IOFBF: c_int = 0; +pub const _IONBF: c_int = 2; +pub const _IOLBF: c_int = 1; +pub const FD_SETSIZE: size_t = 1024; +pub const O_APPEND: c_int = __WASI_FDFLAG_APPEND as c_int; +pub const O_DSYNC: c_int = __WASI_FDFLAG_DSYNC as c_int; +pub const O_NONBLOCK: c_int = __WASI_FDFLAG_NONBLOCK as c_int; +pub const O_RSYNC: c_int = __WASI_FDFLAG_RSYNC as c_int; +pub const O_SYNC: c_int = __WASI_FDFLAG_SYNC as c_int; +pub const O_CREAT: c_int = (__WASI_O_CREAT as c_int) << 12; +pub const O_DIRECTORY: c_int = (__WASI_O_DIRECTORY as c_int) << 12; +pub const O_EXCL: c_int = (__WASI_O_EXCL as c_int) << 12; +pub const O_TRUNC: c_int = (__WASI_O_TRUNC as c_int) << 12; +pub const O_NOFOLLOW: c_int = 0x01000000; +pub const O_EXEC: c_int = 0x02000000; +pub const O_RDONLY: c_int = 0x04000000; +pub const O_SEARCH: c_int = 0x08000000; +pub const O_WRONLY: c_int = 0x10000000; +pub const O_RDWR: c_int = O_WRONLY | O_RDONLY; +pub const O_ACCMODE: c_int = O_EXEC | O_RDWR | O_SEARCH; +pub const POSIX_FADV_DONTNEED: c_int = __WASI_ADVICE_DONTNEED as c_int; +pub const POSIX_FADV_NOREUSE: c_int = __WASI_ADVICE_NOREUSE as c_int; +pub const POSIX_FADV_NORMAL: c_int = __WASI_ADVICE_NORMAL as c_int; +pub const POSIX_FADV_RANDOM: c_int = __WASI_ADVICE_RANDOM as c_int; +pub const POSIX_FADV_SEQUENTIAL: c_int = __WASI_ADVICE_SEQUENTIAL as c_int; +pub const POSIX_FADV_WILLNEED: c_int = __WASI_ADVICE_WILLNEED as c_int; +pub const AT_EACCESS: c_int = 0x0; +pub const AT_SYMLINK_NOFOLLOW: c_int = 0x1; +pub const AT_SYMLINK_FOLLOW: c_int = 0x2; +pub const AT_REMOVEDIR: c_int = 0x4; + +pub const E2BIG: c_int = __WASI_E2BIG as c_int; +pub const EACCES: c_int = __WASI_EACCES as c_int; +pub const EADDRINUSE: c_int = __WASI_EADDRINUSE as c_int; +pub const EADDRNOTAVAIL: c_int = __WASI_EADDRNOTAVAIL as c_int; +pub const EAFNOSUPPORT: c_int = __WASI_EAFNOSUPPORT as c_int; +pub const EAGAIN: c_int = __WASI_EAGAIN as c_int; +pub const EALREADY: c_int = __WASI_EALREADY as c_int; +pub const EBADF: c_int = __WASI_EBADF as c_int; +pub const EBADMSG: c_int = __WASI_EBADMSG as c_int; +pub const EBUSY: c_int = __WASI_EBUSY as c_int; +pub const ECANCELED: c_int = __WASI_ECANCELED as c_int; +pub const ECHILD: c_int = __WASI_ECHILD as c_int; +pub const ECONNABORTED: c_int = __WASI_ECONNABORTED as c_int; +pub const ECONNREFUSED: c_int = __WASI_ECONNREFUSED as c_int; +pub const ECONNRESET: c_int = __WASI_ECONNRESET as c_int; +pub const EDEADLK: c_int = __WASI_EDEADLK as c_int; +pub const EDESTADDRREQ: c_int = __WASI_EDESTADDRREQ as c_int; +pub const EDOM: c_int = __WASI_EDOM as c_int; +pub const EDQUOT: c_int = __WASI_EDQUOT as c_int; +pub const EEXIST: c_int = __WASI_EEXIST as c_int; +pub const EFAULT: c_int = __WASI_EFAULT as c_int; +pub const EFBIG: c_int = __WASI_EFBIG as c_int; +pub const EHOSTUNREACH: c_int = __WASI_EHOSTUNREACH as c_int; +pub const EIDRM: c_int = __WASI_EIDRM as c_int; +pub const EILSEQ: c_int = __WASI_EILSEQ as c_int; +pub const EINPROGRESS: c_int = __WASI_EINPROGRESS as c_int; +pub const EINTR: c_int = __WASI_EINTR as c_int; +pub const EINVAL: c_int = __WASI_EINVAL as c_int; +pub const EIO: c_int = __WASI_EIO as c_int; +pub const EISCONN: c_int = __WASI_EISCONN as c_int; +pub const EISDIR: c_int = __WASI_EISDIR as c_int; +pub const ELOOP: c_int = __WASI_ELOOP as c_int; +pub const EMFILE: c_int = __WASI_EMFILE as c_int; +pub const EMLINK: c_int = __WASI_EMLINK as c_int; +pub const EMSGSIZE: c_int = __WASI_EMSGSIZE as c_int; +pub const EMULTIHOP: c_int = __WASI_EMULTIHOP as c_int; +pub const ENAMETOOLONG: c_int = __WASI_ENAMETOOLONG as c_int; +pub const ENETDOWN: c_int = __WASI_ENETDOWN as c_int; +pub const ENETRESET: c_int = __WASI_ENETRESET as c_int; +pub const ENETUNREACH: c_int = __WASI_ENETUNREACH as c_int; +pub const ENFILE: c_int = __WASI_ENFILE as c_int; +pub const ENOBUFS: c_int = __WASI_ENOBUFS as c_int; +pub const ENODEV: c_int = __WASI_ENODEV as c_int; +pub const ENOENT: c_int = __WASI_ENOENT as c_int; +pub const ENOEXEC: c_int = __WASI_ENOEXEC as c_int; +pub const ENOLCK: c_int = __WASI_ENOLCK as c_int; +pub const ENOLINK: c_int = __WASI_ENOLINK as c_int; +pub const ENOMEM: c_int = __WASI_ENOMEM as c_int; +pub const ENOMSG: c_int = __WASI_ENOMSG as c_int; +pub const ENOPROTOOPT: c_int = __WASI_ENOPROTOOPT as c_int; +pub const ENOSPC: c_int = __WASI_ENOSPC as c_int; +pub const ENOSYS: c_int = __WASI_ENOSYS as c_int; +pub const ENOTCONN: c_int = __WASI_ENOTCONN as c_int; +pub const ENOTDIR: c_int = __WASI_ENOTDIR as c_int; +pub const ENOTEMPTY: c_int = __WASI_ENOTEMPTY as c_int; +pub const ENOTRECOVERABLE: c_int = __WASI_ENOTRECOVERABLE as c_int; +pub const ENOTSOCK: c_int = __WASI_ENOTSOCK as c_int; +pub const ENOTSUP: c_int = __WASI_ENOTSUP as c_int; +pub const ENOTTY: c_int = __WASI_ENOTTY as c_int; +pub const ENXIO: c_int = __WASI_ENXIO as c_int; +pub const EOVERFLOW: c_int = __WASI_EOVERFLOW as c_int; +pub const EOWNERDEAD: c_int = __WASI_EOWNERDEAD as c_int; +pub const EPERM: c_int = __WASI_EPERM as c_int; +pub const EPIPE: c_int = __WASI_EPIPE as c_int; +pub const EPROTO: c_int = __WASI_EPROTO as c_int; +pub const EPROTONOSUPPORT: c_int = __WASI_EPROTONOSUPPORT as c_int; +pub const EPROTOTYPE: c_int = __WASI_EPROTOTYPE as c_int; +pub const ERANGE: c_int = __WASI_ERANGE as c_int; +pub const EROFS: c_int = __WASI_EROFS as c_int; +pub const ESPIPE: c_int = __WASI_ESPIPE as c_int; +pub const ESRCH: c_int = __WASI_ESRCH as c_int; +pub const ESTALE: c_int = __WASI_ESTALE as c_int; +pub const ETIMEDOUT: c_int = __WASI_ETIMEDOUT as c_int; +pub const ETXTBSY: c_int = __WASI_ETXTBSY as c_int; +pub const EXDEV: c_int = __WASI_EXDEV as c_int; +pub const ENOTCAPABLE: c_int = __WASI_ENOTCAPABLE as c_int; +pub const EOPNOTSUPP: c_int = ENOTSUP; +pub const EWOULDBLOCK: c_int = EAGAIN; pub const __WASI_ADVICE_NORMAL: u8 = 0; pub const __WASI_ADVICE_SEQUENTIAL: u8 = 1; @@ -489,6 +701,325 @@ extern { // c: *mut timespec, // ) -> c_int; + pub fn isalnum(c: c_int) -> c_int; + pub fn isalpha(c: c_int) -> c_int; + pub fn iscntrl(c: c_int) -> c_int; + pub fn isdigit(c: c_int) -> c_int; + pub fn isgraph(c: c_int) -> c_int; + pub fn islower(c: c_int) -> c_int; + pub fn isprint(c: c_int) -> c_int; + pub fn ispunct(c: c_int) -> c_int; + pub fn isspace(c: c_int) -> c_int; + pub fn isupper(c: c_int) -> c_int; + pub fn isxdigit(c: c_int) -> c_int; + pub fn tolower(c: c_int) -> c_int; + pub fn toupper(c: c_int) -> c_int; + pub fn setvbuf( + stream: *mut FILE, + buffer: *mut c_char, + mode: c_int, + size: size_t, + ) -> c_int; + pub fn setbuf(stream: *mut FILE, buf: *mut c_char); + pub fn fgets(buf: *mut c_char, n: c_int, stream: *mut FILE) + -> *mut c_char; + pub fn atoi(s: *const c_char) -> c_int; + pub fn strtod(s: *const c_char, endp: *mut *mut c_char) -> c_double; + pub fn strtol( + s: *const c_char, + endp: *mut *mut c_char, + base: c_int, + ) -> c_long; + pub fn strtoul( + s: *const c_char, + endp: *mut *mut c_char, + base: c_int, + ) -> c_ulong; + + pub fn strcpy(dst: *mut c_char, src: *const c_char) -> *mut c_char; + pub fn strncpy( + dst: *mut c_char, + src: *const c_char, + n: size_t, + ) -> *mut c_char; + pub fn strcat(s: *mut c_char, ct: *const c_char) -> *mut c_char; + pub fn strncat( + s: *mut c_char, + ct: *const c_char, + n: size_t, + ) -> *mut c_char; + pub fn strcmp(cs: *const c_char, ct: *const c_char) -> c_int; + pub fn strncmp(cs: *const c_char, ct: *const c_char, n: size_t) -> c_int; + pub fn strcoll(cs: *const c_char, ct: *const c_char) -> c_int; + pub fn strchr(cs: *const c_char, c: c_int) -> *mut c_char; + pub fn strrchr(cs: *const c_char, c: c_int) -> *mut c_char; + pub fn strspn(cs: *const c_char, ct: *const c_char) -> size_t; + pub fn strcspn(cs: *const c_char, ct: *const c_char) -> size_t; + pub fn strdup(cs: *const c_char) -> *mut c_char; + pub fn strpbrk(cs: *const c_char, ct: *const c_char) -> *mut c_char; + pub fn strstr(cs: *const c_char, ct: *const c_char) -> *mut c_char; + pub fn strcasecmp(s1: *const c_char, s2: *const c_char) -> c_int; + pub fn strncasecmp( + s1: *const c_char, + s2: *const c_char, + n: size_t, + ) -> c_int; + pub fn strlen(cs: *const c_char) -> size_t; + pub fn strnlen(cs: *const c_char, maxlen: size_t) -> size_t; + pub fn strerror(n: c_int) -> *mut c_char; + pub fn strtok(s: *mut c_char, t: *const c_char) -> *mut c_char; + pub fn strxfrm(s: *mut c_char, ct: *const c_char, n: size_t) -> size_t; + + pub fn memchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void; + pub fn memcmp(cx: *const c_void, ct: *const c_void, n: size_t) -> c_int; + pub fn memcpy( + dest: *mut c_void, + src: *const c_void, + n: size_t, + ) -> *mut c_void; + pub fn memmove( + dest: *mut c_void, + src: *const c_void, + n: size_t, + ) -> *mut c_void; + pub fn memset(dest: *mut c_void, c: c_int, n: size_t) -> *mut c_void; + + pub fn fprintf( + stream: *mut ::FILE, + format: *const ::c_char, + ... + ) -> ::c_int; + pub fn printf(format: *const ::c_char, ...) -> ::c_int; + pub fn snprintf( + s: *mut ::c_char, + n: ::size_t, + format: *const ::c_char, + ... + ) -> ::c_int; + pub fn sprintf(s: *mut ::c_char, format: *const ::c_char, ...) -> ::c_int; + pub fn fscanf( + stream: *mut ::FILE, + format: *const ::c_char, + ... + ) -> ::c_int; + pub fn scanf(format: *const ::c_char, ...) -> ::c_int; + pub fn sscanf(s: *const ::c_char, format: *const ::c_char, ...) + -> ::c_int; + pub fn getchar_unlocked() -> ::c_int; + pub fn putchar_unlocked(c: ::c_int) -> ::c_int; + + pub fn shutdown(socket: ::c_int, how: ::c_int) -> ::c_int; + pub fn fstat(fildes: ::c_int, buf: *mut stat) -> ::c_int; + pub fn mkdir(path: *const c_char, mode: mode_t) -> ::c_int; + pub fn stat(path: *const c_char, buf: *mut stat) -> ::c_int; + pub fn fdopen(fd: ::c_int, mode: *const c_char) -> *mut ::FILE; + pub fn fileno(stream: *mut ::FILE) -> ::c_int; + pub fn open(path: *const c_char, oflag: ::c_int, ...) -> ::c_int; + pub fn creat(path: *const c_char, mode: mode_t) -> ::c_int; + pub fn fcntl(fd: ::c_int, cmd: ::c_int, ...) -> ::c_int; + pub fn opendir(dirname: *const c_char) -> *mut ::DIR; + pub fn fdopendir(fd: ::c_int) -> *mut ::DIR; + pub fn readdir(dirp: *mut ::DIR) -> *mut ::dirent; + pub fn closedir(dirp: *mut ::DIR) -> ::c_int; + pub fn rewinddir(dirp: *mut ::DIR); + + pub fn openat( + dirfd: ::c_int, + pathname: *const ::c_char, + flags: ::c_int, + ... + ) -> ::c_int; + pub fn fstatat( + dirfd: ::c_int, + pathname: *const ::c_char, + buf: *mut stat, + flags: ::c_int, + ) -> ::c_int; + pub fn linkat( + olddirfd: ::c_int, + oldpath: *const ::c_char, + newdirfd: ::c_int, + newpath: *const ::c_char, + flags: ::c_int, + ) -> ::c_int; + pub fn mkdirat( + dirfd: ::c_int, + pathname: *const ::c_char, + mode: ::mode_t, + ) -> ::c_int; + pub fn readlinkat( + dirfd: ::c_int, + pathname: *const ::c_char, + buf: *mut ::c_char, + bufsiz: ::size_t, + ) -> ::ssize_t; + pub fn renameat( + olddirfd: ::c_int, + oldpath: *const ::c_char, + newdirfd: ::c_int, + newpath: *const ::c_char, + ) -> ::c_int; + pub fn symlinkat( + target: *const ::c_char, + newdirfd: ::c_int, + linkpath: *const ::c_char, + ) -> ::c_int; + pub fn unlinkat( + dirfd: ::c_int, + pathname: *const ::c_char, + flags: ::c_int, + ) -> ::c_int; + + pub fn access(path: *const c_char, amode: ::c_int) -> ::c_int; + pub fn close(fd: ::c_int) -> ::c_int; + pub fn fpathconf(filedes: ::c_int, name: ::c_int) -> c_long; + pub fn getopt( + argc: ::c_int, + argv: *const *mut c_char, + optstr: *const c_char, + ) -> ::c_int; + pub fn isatty(fd: ::c_int) -> ::c_int; + pub fn link(src: *const c_char, dst: *const c_char) -> ::c_int; + pub fn lseek(fd: ::c_int, offset: off_t, whence: ::c_int) -> off_t; + pub fn pathconf(path: *const c_char, name: ::c_int) -> c_long; + pub fn pause() -> ::c_int; + pub fn rmdir(path: *const c_char) -> ::c_int; + pub fn sleep(secs: ::c_uint) -> ::c_uint; + pub fn unlink(c: *const c_char) -> ::c_int; + pub fn pread( + fd: ::c_int, + buf: *mut ::c_void, + count: ::size_t, + offset: off_t, + ) -> ::ssize_t; + pub fn pwrite( + fd: ::c_int, + buf: *const ::c_void, + count: ::size_t, + offset: off_t, + ) -> ::ssize_t; + + pub fn lstat(path: *const c_char, buf: *mut stat) -> ::c_int; + + pub fn fsync(fd: ::c_int) -> ::c_int; + + pub fn symlink(path1: *const c_char, path2: *const c_char) -> ::c_int; + + pub fn ftruncate(fd: ::c_int, length: off_t) -> ::c_int; + + pub fn getrusage(resource: ::c_int, usage: *mut rusage) -> ::c_int; + + pub fn gettimeofday(tp: *mut ::timeval, tz: *mut ::c_void) -> ::c_int; + pub fn times(buf: *mut ::tms) -> ::clock_t; + + pub fn strerror_r( + errnum: ::c_int, + buf: *mut c_char, + buflen: ::size_t, + ) -> ::c_int; + + pub fn usleep(secs: ::c_uint) -> ::c_int; + pub fn send( + socket: ::c_int, + buf: *const ::c_void, + len: ::size_t, + flags: ::c_int, + ) -> ::ssize_t; + pub fn recv( + socket: ::c_int, + buf: *mut ::c_void, + len: ::size_t, + flags: ::c_int, + ) -> ::ssize_t; + pub fn poll(fds: *mut pollfd, nfds: nfds_t, timeout: ::c_int) -> ::c_int; + pub fn setlocale( + category: ::c_int, + locale: *const ::c_char, + ) -> *mut ::c_char; + pub fn localeconv() -> *mut lconv; + + pub fn readlink( + path: *const c_char, + buf: *mut c_char, + bufsz: ::size_t, + ) -> ::ssize_t; + + pub fn timegm(tm: *mut ::tm) -> time_t; + + pub fn sysconf(name: ::c_int) -> ::c_long; + + pub fn fseeko( + stream: *mut ::FILE, + offset: ::off_t, + whence: ::c_int, + ) -> ::c_int; + pub fn ftello(stream: *mut ::FILE) -> ::off_t; + + pub fn strcasestr(cs: *const c_char, ct: *const c_char) -> *mut c_char; + pub fn getline( + lineptr: *mut *mut c_char, + n: *mut size_t, + stream: *mut FILE, + ) -> ssize_t; + + pub fn faccessat( + dirfd: ::c_int, + pathname: *const ::c_char, + mode: ::c_int, + flags: ::c_int, + ) -> ::c_int; + pub fn writev( + fd: ::c_int, + iov: *const ::iovec, + iovcnt: ::c_int, + ) -> ::ssize_t; + pub fn readv( + fd: ::c_int, + iov: *const ::iovec, + iovcnt: ::c_int, + ) -> ::ssize_t; + pub fn pwritev( + fd: ::c_int, + iov: *const ::iovec, + iovcnt: ::c_int, + offset: ::off_t, + ) -> ::ssize_t; + pub fn preadv( + fd: ::c_int, + iov: *const ::iovec, + iovcnt: ::c_int, + offset: ::off_t, + ) -> ::ssize_t; + pub fn posix_fadvise( + fd: ::c_int, + offset: ::off_t, + len: ::off_t, + advise: ::c_int, + ) -> ::c_int; + pub fn futimens(fd: ::c_int, times: *const ::timespec) -> ::c_int; + pub fn utimensat( + dirfd: ::c_int, + path: *const ::c_char, + times: *const ::timespec, + flag: ::c_int, + ) -> ::c_int; + pub fn getentropy(buf: *mut ::c_void, buflen: ::size_t) -> ::c_int; + pub fn memrchr( + cx: *const ::c_void, + c: ::c_int, + n: ::size_t, + ) -> *mut ::c_void; + pub fn abs(i: c_int) -> c_int; + pub fn labs(i: c_long) -> c_long; + pub fn duplocale(base: ::locale_t) -> ::locale_t; + pub fn freelocale(loc: ::locale_t); + pub fn newlocale( + mask: ::c_int, + locale: *const ::c_char, + base: ::locale_t, + ) -> ::locale_t; + pub fn uselocale(loc: ::locale_t) -> ::locale_t; + pub fn __wasilibc_register_preopened_fd( fd: c_int, path: *const c_char,