diff --git a/ci/docker/wasm32-unknown-wasi/Dockerfile b/ci/docker/wasm32-unknown-wasi/Dockerfile new file mode 100644 index 0000000000000..54b033aec34a4 --- /dev/null +++ b/ci/docker/wasm32-unknown-wasi/Dockerfile @@ -0,0 +1,75 @@ +# syntax=docker/dockerfile:experimental + +FROM ubuntu:18.04 as reference-sysroot + +RUN apt-get update && \ + apt-get install -y --no-install-recommends \ + ca-certificates \ + clang \ + cmake \ + curl \ + g++ \ + git \ + libc6-dev \ + libclang-dev \ + make \ + ssh \ + xz-utils + +RUN curl http://releases.llvm.org/8.0.0/clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-18.04.tar.xz | tar xJf - +RUN mv /clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-18.04 /wasmcc + +# TODO: remove this and `--mount` flags when repos are public +ENV GIT_SSH_COMMAND="ssh -o StrictHostKeyChecking=no" +RUN --mount=type=ssh git clone git@github.com:CraneStation/reference-sysroot-wasi && \ + cd reference-sysroot-wasi && \ + git reset --hard d5a609fe63926533e1054e539ba5f2693d51bdf5 +RUN make -C reference-sysroot-wasi install -j $(nproc) WASM_CC=/wasmcc/bin/clang INSTALL_DIR=/wasm-sysroot +COPY docker/wasm32-unknown-wasi/clang.sh /wasm-sysroot/bin/clang + +FROM ubuntu:18.04 as wasmtime + +RUN apt-get update && \ + apt-get install -y --no-install-recommends \ + ca-certificates \ + clang \ + cmake \ + curl \ + g++ \ + git \ + libclang-dev \ + make \ + ssh + +RUN curl -sSf https://sh.rustup.rs | sh -s -- -y +ENV PATH=/root/.cargo/bin:$PATH + +# TODO: remove this and `--mount` flags when repos are public +ENV GIT_SSH_COMMAND="ssh -o StrictHostKeyChecking=no" +RUN apt-get install -y --no-install-recommends python +RUN --mount=type=ssh git clone git@github.com:CraneStation/wasmtime-wasi wasmtime && \ + cd wasmtime && \ + git reset --hard a7ac05df74759a7536b2b1e30adc6ff4867e36c3 + +# Install wasmtime in /usr/bin, but make sure to remove rust afterwards because +# we don't want it conflicting with the main Rust we're using to compile +# `libc`. +RUN cargo build --release --manifest-path wasmtime/Cargo.toml + +FROM ubuntu:18.04 + +RUN apt-get update && \ + apt-get install -y --no-install-recommends \ + gcc \ + libc6-dev \ + libxml2 + +COPY --from=reference-sysroot /wasmcc /wasmcc/ +COPY --from=reference-sysroot /wasm-sysroot/ /wasm-sysroot/ +COPY --from=wasmtime /wasmtime/target/release/wasmtime /usr/bin/ + +ENV CARGO_TARGET_WASM32_UNKNOWN_WASI_RUNNER=wasmtime \ + CARGO_TARGET_WASM32_UNKNOWN_WASI_LINKER=/wasm-sysroot/bin/clang \ + CC_wasm32_unknown_wasi=/wasm-sysroot/bin/clang \ + PATH=$PATH:/rust/bin \ + RUSTFLAGS=-Ctarget-feature=-crt-static diff --git a/ci/docker/wasm32-unknown-wasi/clang.sh b/ci/docker/wasm32-unknown-wasi/clang.sh new file mode 100755 index 0000000000000..fe58503d5c625 --- /dev/null +++ b/ci/docker/wasm32-unknown-wasi/clang.sh @@ -0,0 +1,2 @@ +#!/bin/sh +exec /wasmcc/bin/clang --target=wasm32-unknown-wasi --sysroot /wasm-sysroot "$@" diff --git a/ci/run-docker.sh b/ci/run-docker.sh index c656f5904d684..d351add4803bf 100755 --- a/ci/run-docker.sh +++ b/ci/run-docker.sh @@ -9,7 +9,12 @@ run() { echo "Building docker container for target ${1}" # use -f so we can use ci/ as build context - docker build -t libc -f "ci/docker/${1}/Dockerfile" ci/ + DOCKER_BUILDKIT=1 \ + docker build \ + --ssh default \ + -t libc \ + -f "ci/docker/${1}/Dockerfile" \ + ci/ mkdir -p target if [ -w /dev/kvm ]; then kvm="--volume /dev/kvm:/dev/kvm" diff --git a/libc-test/build.rs b/libc-test/build.rs index 9ecfdc0d59516..30c450e4919be 100644 --- a/libc-test/build.rs +++ b/libc-test/build.rs @@ -5,12 +5,12 @@ extern crate ctest; use std::env; -#[cfg(unix)] fn do_cc() { - cc::Build::new().file("src/cmsg.c").compile("cmsg"); + let target = env::var("TARGET").unwrap(); + if cfg!(unix) && !target.contains("wasi") { + cc::Build::new().file("src/cmsg.c").compile("cmsg"); + } } -#[cfg(not(unix))] -fn do_cc() {} fn do_ctest() { let target = env::var("TARGET").unwrap(); @@ -38,6 +38,7 @@ fn do_ctest() { t if t.contains("solaris") => return test_solaris(t), t if t.contains("netbsd") => return test_netbsd(t), t if t.contains("dragonfly") => return test_dragonflybsd(t), + t if t.contains("wasi") => return test_wasi(t), _ => (), } @@ -1866,3 +1867,67 @@ fn test_dragonflybsd(target: &str) { cfg.generate("../src/lib.rs", "main.rs"); } + +fn test_wasi(target: &str) { + assert!(target.contains("wasi")); + + let mut cfg = ctest::TestGenerator::new(); + cfg.define("_GNU_SOURCE", None); + + headers! { cfg: + "errno.h", + "fcntl.h", + "limits.h", + "locale.h", + "malloc.h", + "stddef.h", + "stdint.h", + "stdio.h", + "stdlib.h", + "sys/stat.h", + "sys/types.h", + "time.h", + "unistd.h", + "wasi/core.h", + "wasi/libc.h", + "wchar.h", + } + + cfg.type_name(move |ty, is_struct, is_union| match ty { + "FILE" => ty.to_string(), + t if is_union => format!("union {}", t), + t if t.starts_with("__wasi") && t.ends_with("_u") => format!("union {}", t), + t if t.starts_with("__wasi") && is_struct => format!("struct {}", t), + t if t.ends_with("_t") => t.to_string(), + t if is_struct => format!("struct {}", t), + t => t.to_string(), + }); + + // This is an opaque struct but we go through shenanigans to define values + // for it + cfg.skip_struct(move |ty| ty == "__clockid"); + + cfg.field_name(move |_struct, field| { + match field { + // deal with fields as rust keywords + "type_" => "type".to_string(), + s => s.to_string(), + } + }); + + cfg.skip_static(move |name| { + match name { + // wasi shenanigans for defining CLOCK_REALTIME and such + s if s.starts_with("__CLOCK") => true, + _ => false, + } + }); + + // Looks like LLD doesn't merge duplicate imports, so if the Rust + // code imports from a module and the C code also imports from a + // module we end up with two imports of function pointers which + // improt the same thing bug have different function pointers + cfg.skip_fn_ptrcheck(|f| f.starts_with("__wasi")); + + cfg.generate("../src/lib.rs", "main.rs"); +} diff --git a/src/lib.rs b/src/lib.rs index 2c30576bade30..2571f81a6cfbd 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -112,7 +112,10 @@ cfg_if! { } else if #[cfg(all(target_env = "sgx", target_vendor = "fortanix"))] { mod sgx; pub use sgx::*; - } else { + } else if #[cfg(target_env = "wasi")] { + mod wasi; + pub use wasi::*; + } else { // non-supported targets: empty... } } diff --git a/src/wasi.rs b/src/wasi.rs new file mode 100644 index 0000000000000..f15c5c3b4afb3 --- /dev/null +++ b/src/wasi.rs @@ -0,0 +1,792 @@ +pub use ffi::c_void; + +pub type c_char = i8; +pub type c_uchar = u8; +pub type c_int = i32; +pub type c_uint = u32; +pub type c_short = i16; +pub type c_ushort = u16; +pub type c_long = i32; +pub type c_ulong = u32; +pub type c_longlong = i64; +pub type c_ulonglong = u64; +pub type size_t = usize; +pub type ssize_t = isize; +pub type off_t = i64; +pub type pid_t = i32; +pub type int8_t = i8; +pub type uint8_t = u8; +pub type int16_t = i16; +pub type uint16_t = u16; +pub type int32_t = i32; +pub type uint32_t = u32; +pub type int64_t = i64; +pub type uint64_t = u64; +pub type clock_t = c_longlong; +pub type time_t = c_longlong; +pub type c_double = f64; +pub type c_float = f32; +pub type clockid_t = &'static __clockid; + +pub type __wasi_advice_t = u8; +pub type __wasi_clockid_t = u32; +pub type __wasi_device_t = u64; +pub type __wasi_dircookie_t = u64; +pub type __wasi_errno_t = u16; +pub type __wasi_eventrwflags_t = u16; +pub type __wasi_eventtype_t = u8; +pub type __wasi_exitcode_t = u32; +pub type __wasi_fd_t = u32; +pub type __wasi_fdflags_t = u16; +pub type __wasi_filedelta_t = i64; +pub type __wasi_filesize_t = u64; +pub type __wasi_filetype_t = u8; +pub type __wasi_fstflags_t = u16; +pub type __wasi_inode_t = u64; +pub type __wasi_linkcount_t = u32; +pub type __wasi_lookupflags_t = u32; +pub type __wasi_oflags_t = u16; +pub type __wasi_riflags_t = u16; +pub type __wasi_rights_t = u64; +pub type __wasi_roflags_t = u16; +pub type __wasi_sdflags_t = u8; +pub type __wasi_siflags_t = u16; +pub type __wasi_signal_t = u8; +pub type __wasi_subclockflags_t = u16; +pub type __wasi_timestamp_t = u64; +pub type __wasi_userdata_t = u64; +pub type __wasi_whence_t = u8; +pub type __wasi_preopentype_t = u8; + +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 __WASI_ADVICE_NORMAL: u8 = 0; +pub const __WASI_ADVICE_SEQUENTIAL: u8 = 1; +pub const __WASI_ADVICE_RANDOM: u8 = 2; +pub const __WASI_ADVICE_WILLNEED: u8 = 3; +pub const __WASI_ADVICE_DONTNEED: u8 = 4; +pub const __WASI_ADVICE_NOREUSE: u8 = 5; +pub const __WASI_CLOCK_REALTIME: u32 = 0; +pub const __WASI_CLOCK_MONOTONIC: u32 = 1; +pub const __WASI_CLOCK_PROCESS_CPUTIME_ID: u32 = 2; +pub const __WASI_CLOCK_THREAD_CPUTIME_ID: u32 = 3; +pub const __WASI_DIRCOOKIE_START: u64 = 0; +pub const __WASI_ESUCCESS: u16 = 0; +pub const __WASI_E2BIG: u16 = 1; +pub const __WASI_EACCES: u16 = 2; +pub const __WASI_EADDRINUSE: u16 = 3; +pub const __WASI_EADDRNOTAVAIL: u16 = 4; +pub const __WASI_EAFNOSUPPORT: u16 = 5; +pub const __WASI_EAGAIN: u16 = 6; +pub const __WASI_EALREADY: u16 = 7; +pub const __WASI_EBADF: u16 = 8; +pub const __WASI_EBADMSG: u16 = 9; +pub const __WASI_EBUSY: u16 = 10; +pub const __WASI_ECANCELED: u16 = 11; +pub const __WASI_ECHILD: u16 = 12; +pub const __WASI_ECONNABORTED: u16 = 13; +pub const __WASI_ECONNREFUSED: u16 = 14; +pub const __WASI_ECONNRESET: u16 = 15; +pub const __WASI_EDEADLK: u16 = 16; +pub const __WASI_EDESTADDRREQ: u16 = 17; +pub const __WASI_EDOM: u16 = 18; +pub const __WASI_EDQUOT: u16 = 19; +pub const __WASI_EEXIST: u16 = 20; +pub const __WASI_EFAULT: u16 = 21; +pub const __WASI_EFBIG: u16 = 22; +pub const __WASI_EHOSTUNREACH: u16 = 23; +pub const __WASI_EIDRM: u16 = 24; +pub const __WASI_EILSEQ: u16 = 25; +pub const __WASI_EINPROGRESS: u16 = 26; +pub const __WASI_EINTR: u16 = 27; +pub const __WASI_EINVAL: u16 = 28; +pub const __WASI_EIO: u16 = 29; +pub const __WASI_EISCONN: u16 = 30; +pub const __WASI_EISDIR: u16 = 31; +pub const __WASI_ELOOP: u16 = 32; +pub const __WASI_EMFILE: u16 = 33; +pub const __WASI_EMLINK: u16 = 34; +pub const __WASI_EMSGSIZE: u16 = 35; +pub const __WASI_EMULTIHOP: u16 = 36; +pub const __WASI_ENAMETOOLONG: u16 = 37; +pub const __WASI_ENETDOWN: u16 = 38; +pub const __WASI_ENETRESET: u16 = 39; +pub const __WASI_ENETUNREACH: u16 = 40; +pub const __WASI_ENFILE: u16 = 41; +pub const __WASI_ENOBUFS: u16 = 42; +pub const __WASI_ENODEV: u16 = 43; +pub const __WASI_ENOENT: u16 = 44; +pub const __WASI_ENOEXEC: u16 = 45; +pub const __WASI_ENOLCK: u16 = 46; +pub const __WASI_ENOLINK: u16 = 47; +pub const __WASI_ENOMEM: u16 = 48; +pub const __WASI_ENOMSG: u16 = 49; +pub const __WASI_ENOPROTOOPT: u16 = 50; +pub const __WASI_ENOSPC: u16 = 51; +pub const __WASI_ENOSYS: u16 = 52; +pub const __WASI_ENOTCONN: u16 = 53; +pub const __WASI_ENOTDIR: u16 = 54; +pub const __WASI_ENOTEMPTY: u16 = 55; +pub const __WASI_ENOTRECOVERABLE: u16 = 56; +pub const __WASI_ENOTSOCK: u16 = 57; +pub const __WASI_ENOTSUP: u16 = 58; +pub const __WASI_ENOTTY: u16 = 59; +pub const __WASI_ENXIO: u16 = 60; +pub const __WASI_EOVERFLOW: u16 = 61; +pub const __WASI_EOWNERDEAD: u16 = 62; +pub const __WASI_EPERM: u16 = 63; +pub const __WASI_EPIPE: u16 = 64; +pub const __WASI_EPROTO: u16 = 65; +pub const __WASI_EPROTONOSUPPORT: u16 = 66; +pub const __WASI_EPROTOTYPE: u16 = 67; +pub const __WASI_ERANGE: u16 = 68; +pub const __WASI_EROFS: u16 = 69; +pub const __WASI_ESPIPE: u16 = 70; +pub const __WASI_ESRCH: u16 = 71; +pub const __WASI_ESTALE: u16 = 72; +pub const __WASI_ETIMEDOUT: u16 = 73; +pub const __WASI_ETXTBSY: u16 = 74; +pub const __WASI_EXDEV: u16 = 75; +pub const __WASI_ENOTCAPABLE: u16 = 76; +pub const __WASI_EVENT_FD_READWRITE_HANGUP: u16 = 0x0001; +pub const __WASI_EVENTTYPE_CLOCK: u8 = 0; +pub const __WASI_EVENTTYPE_FD_READ: u8 = 1; +pub const __WASI_EVENTTYPE_FD_WRITE: u8 = 2; +pub const __WASI_FDFLAG_APPEND: u16 = 0x0001; +pub const __WASI_FDFLAG_DSYNC: u16 = 0x0002; +pub const __WASI_FDFLAG_NONBLOCK: u16 = 0x0004; +pub const __WASI_FDFLAG_RSYNC: u16 = 0x0008; +pub const __WASI_FDFLAG_SYNC: u16 = 0x0010; +pub const __WASI_FILETYPE_UNKNOWN: u8 = 0; +pub const __WASI_FILETYPE_BLOCK_DEVICE: u8 = 1; +pub const __WASI_FILETYPE_CHARACTER_DEVICE: u8 = 2; +pub const __WASI_FILETYPE_DIRECTORY: u8 = 3; +pub const __WASI_FILETYPE_REGULAR_FILE: u8 = 4; +pub const __WASI_FILETYPE_SOCKET_DGRAM: u8 = 5; +pub const __WASI_FILETYPE_SOCKET_STREAM: u8 = 6; +pub const __WASI_FILETYPE_SYMBOLIC_LINK: u8 = 7; +pub const __WASI_FILESTAT_SET_ATIM: u16 = 0x0001; +pub const __WASI_FILESTAT_SET_ATIM_NOW: u16 = 0x0002; +pub const __WASI_FILESTAT_SET_MTIM: u16 = 0x0004; +pub const __WASI_FILESTAT_SET_MTIM_NOW: u16 = 0x0008; +pub const __WASI_LOOKUP_SYMLINK_FOLLOW: u32 = 0x00000001; +pub const __WASI_O_CREAT: u16 = 0x0001; +pub const __WASI_O_DIRECTORY: u16 = 0x0002; +pub const __WASI_O_EXCL: u16 = 0x0004; +pub const __WASI_O_TRUNC: u16 = 0x0008; +pub const __WASI_PREOPENTYPE_DIR: u8 = 0; +pub const __WASI_SOCK_RECV_PEEK: u16 = 0x0001; +pub const __WASI_SOCK_RECV_WAITALL: u16 = 0x0002; +pub const __WASI_RIGHT_FD_DATASYNC: u64 = 0x0000000000000001; +pub const __WASI_RIGHT_FD_READ: u64 = 0x0000000000000002; +pub const __WASI_RIGHT_FD_SEEK: u64 = 0x0000000000000004; +pub const __WASI_RIGHT_FD_FDSTAT_SET_FLAGS: u64 = 0x0000000000000008; +pub const __WASI_RIGHT_FD_SYNC: u64 = 0x0000000000000010; +pub const __WASI_RIGHT_FD_TELL: u64 = 0x0000000000000020; +pub const __WASI_RIGHT_FD_WRITE: u64 = 0x0000000000000040; +pub const __WASI_RIGHT_FD_ADVISE: u64 = 0x0000000000000080; +pub const __WASI_RIGHT_FD_ALLOCATE: u64 = 0x0000000000000100; +pub const __WASI_RIGHT_PATH_CREATE_DIRECTORY: u64 = 0x0000000000000200; +pub const __WASI_RIGHT_PATH_CREATE_FILE: u64 = 0x0000000000000400; +pub const __WASI_RIGHT_PATH_LINK_SOURCE: u64 = 0x0000000000000800; +pub const __WASI_RIGHT_PATH_LINK_TARGET: u64 = 0x0000000000001000; +pub const __WASI_RIGHT_PATH_OPEN: u64 = 0x0000000000002000; +pub const __WASI_RIGHT_FD_READDIR: u64 = 0x0000000000004000; +pub const __WASI_RIGHT_PATH_READLINK: u64 = 0x0000000000008000; +pub const __WASI_RIGHT_PATH_RENAME_SOURCE: u64 = 0x0000000000010000; +pub const __WASI_RIGHT_PATH_RENAME_TARGET: u64 = 0x0000000000020000; +pub const __WASI_RIGHT_PATH_FILESTAT_GET: u64 = 0x0000000000040000; +pub const __WASI_RIGHT_PATH_FILESTAT_SET_SIZE: u64 = 0x0000000000080000; +pub const __WASI_RIGHT_PATH_FILESTAT_SET_TIMES: u64 = 0x0000000000100000; +pub const __WASI_RIGHT_FD_FILESTAT_GET: u64 = 0x0000000000200000; +pub const __WASI_RIGHT_FD_FILESTAT_SET_SIZE: u64 = 0x0000000000400000; +pub const __WASI_RIGHT_FD_FILESTAT_SET_TIMES: u64 = 0x0000000000800000; +pub const __WASI_RIGHT_PATH_SYMLINK: u64 = 0x0000000001000000; +pub const __WASI_RIGHT_PATH_REMOVE_DIRECTORY: u64 = 0x0000000002000000; +pub const __WASI_RIGHT_PATH_UNLINK_FILE: u64 = 0x0000000004000000; +pub const __WASI_RIGHT_POLL_FD_READWRITE: u64 = 0x0000000008000000; +pub const __WASI_RIGHT_SOCK_SHUTDOWN: u64 = 0x0000000010000000; +pub const __WASI_SOCK_RECV_DATA_TRUNCATED: u16 = 0x0001; +pub const __WASI_SHUT_RD: u8 = 0x01; +pub const __WASI_SHUT_WR: u8 = 0x02; +pub const __WASI_SIGHUP: u8 = 1; +pub const __WASI_SIGINT: u8 = 2; +pub const __WASI_SIGQUIT: u8 = 3; +pub const __WASI_SIGILL: u8 = 4; +pub const __WASI_SIGTRAP: u8 = 5; +pub const __WASI_SIGABRT: u8 = 6; +pub const __WASI_SIGBUS: u8 = 7; +pub const __WASI_SIGFPE: u8 = 8; +pub const __WASI_SIGKILL: u8 = 9; +pub const __WASI_SIGUSR1: u8 = 10; +pub const __WASI_SIGSEGV: u8 = 11; +pub const __WASI_SIGUSR2: u8 = 12; +pub const __WASI_SIGPIPE: u8 = 13; +pub const __WASI_SIGALRM: u8 = 14; +pub const __WASI_SIGTERM: u8 = 15; +pub const __WASI_SIGCHLD: u8 = 16; +pub const __WASI_SIGCONT: u8 = 17; +pub const __WASI_SIGSTOP: u8 = 18; +pub const __WASI_SIGTSTP: u8 = 19; +pub const __WASI_SIGTTIN: u8 = 20; +pub const __WASI_SIGTTOU: u8 = 21; +pub const __WASI_SIGURG: u8 = 22; +pub const __WASI_SIGXCPU: u8 = 23; +pub const __WASI_SIGXFSZ: u8 = 24; +pub const __WASI_SIGVTALRM: u8 = 25; +pub const __WASI_SIGPROF: u8 = 26; +pub const __WASI_SIGWINCH: u8 = 27; +pub const __WASI_SIGPOLL: u8 = 28; +pub const __WASI_SIGPWR: u8 = 29; +pub const __WASI_SIGSYS: u8 = 30; +pub const __WASI_SUBSCRIPTION_CLOCK_ABSTIME: u16 = 0x0001; +pub const __WASI_WHENCE_CUR: u8 = 0; +pub const __WASI_WHENCE_END: u8 = 1; +pub const __WASI_WHENCE_SET: u8 = 2; + +#[cfg_attr(feature = "extra_traits", derive(Debug))] +pub enum FILE {} +impl ::Copy for FILE {} +impl ::Clone for FILE { + fn clone(&self) -> FILE { + *self + } +} + +s! { + #[repr(align(8))] + pub struct fpos_t { + data: [u8; 16], + } + + pub struct tm { + pub tm_sec: c_int, + pub tm_min: c_int, + pub tm_hour: c_int, + pub tm_mday: c_int, + pub tm_mon: c_int, + pub tm_year: c_int, + pub tm_wday: c_int, + pub tm_yday: c_int, + pub tm_isdst: c_int, + pub __tm_gmtoff: c_int, + pub __tm_zone: *const c_char, + pub __tm_nsec: c_int, + } + + pub struct timespec { + pub tv_sec: time_t, + pub tv_nsec: c_long, + } + + pub struct itimerspec { + pub it_interval: timespec, + pub it_value: timespec, + } + + pub struct __clockid {} + + pub struct __wasi_dirent_t { + pub d_next: __wasi_dircookie_t, + pub d_ino: __wasi_inode_t, + pub d_namlen: u32, + pub d_type: __wasi_filetype_t, + } + + pub struct __wasi_event_u_fd_readwrite_t { + pub nbytes: __wasi_filesize_t, + pub flags: __wasi_eventrwflags_t, + } + + pub struct __wasi_fdstat_t { + pub fs_filetype: __wasi_filetype_t, + pub fs_flags: __wasi_fdflags_t, + pub fs_rights_base: __wasi_rights_t, + pub fs_rights_inheriting: __wasi_rights_t, + } + + pub struct __wasi_filestat_t { + pub st_dev: __wasi_device_t, + pub st_ino: __wasi_inode_t, + pub st_filetype: __wasi_filetype_t, + pub st_nlink: __wasi_linkcount_t, + pub st_size: __wasi_filesize_t, + pub st_atim: __wasi_timestamp_t, + pub st_mtim: __wasi_timestamp_t, + pub st_ctim: __wasi_timestamp_t, + } + + pub struct __wasi_ciovec_t { + pub buf: *const ::c_void, + pub buf_len: usize, + } + + pub struct __wasi_iovec_t { + pub buf: *mut ::c_void, + pub buf_len: usize, + } + + pub struct __wasi_subscription_u_clock_t { + pub identifier: __wasi_userdata_t, + pub clock_id: __wasi_clockid_t, + pub timeout: __wasi_timestamp_t, + pub precision: __wasi_timestamp_t, + pub flags: __wasi_subclockflags_t, + } + + pub struct __wasi_subscription_u_fd_readwrite_t { + pub fd: __wasi_fd_t, + } + + pub struct __wasi_prestat_u_dir_t { + pub pr_name_len: usize, + } +} + +s_no_extra_traits! { + #[allow(missing_debug_implementations)] + pub struct __wasi_subscription_t { + pub userdata: __wasi_userdata_t, + pub type_: __wasi_eventtype_t, + pub u: __wasi_subscription_u, + } + + #[allow(missing_debug_implementations)] + pub struct __wasi_event_t { + pub userdata: __wasi_userdata_t, + pub error: __wasi_errno_t, + pub type_: __wasi_eventtype_t, + pub u: __wasi_event_u, + } + + #[allow(missing_debug_implementations)] + pub union __wasi_event_u { + pub fd_readwrite: __wasi_event_u_fd_readwrite_t, + _bindgen_union_align: [u64; 2usize], + } + + #[allow(missing_debug_implementations)] + pub union __wasi_subscription_u { + pub clock: __wasi_subscription_u_clock_t, + pub fd_readwrite: + __wasi_subscription_u_fd_readwrite_t, + _bindgen_union_align: [u64; 5usize], + } + + #[allow(missing_debug_implementations)] + pub struct __wasi_prestat_t { + pub pr_type: __wasi_preopentype_t, + pub u: __wasi_prestat_u, + } + + #[allow(missing_debug_implementations)] + pub union __wasi_prestat_u { + pub dir: __wasi_prestat_u_dir_t, + } + +} + +pub static CLOCK_REALTIME: clockid_t = unsafe { &__CLOCK_REALTIME_ADDR }; +pub static CLOCK_MONOTONIC: clockid_t = unsafe { &__CLOCK_MONOTONIC_ADDR }; +pub static CLOCK_MONOTONIC_RAW: clockid_t = + unsafe { &__CLOCK_MONOTONIC_RAW_ADDR }; + +#[cfg_attr(feature = "rustc-dep-of-std", + link(name = "c", kind = "static", + cfg(target_feature = "crt-static")))] +#[cfg_attr(feature = "rustc-dep-of-std", + link(name = "c", cfg(not(target_feature = "crt-static"))))] +extern "C" { + pub fn _Exit(code: c_int) -> !; + pub fn _exit(code: c_int) -> !; + pub fn abort() -> !; + pub fn aligned_alloc(a: size_t, b: size_t) -> *mut c_void; + pub fn calloc(amt: size_t, amt2: size_t) -> *mut c_void; + pub fn exit(code: c_int) -> !; + pub fn free(ptr: *mut c_void); + pub fn getenv(s: *const c_char) -> *mut c_char; + pub fn malloc(amt: size_t) -> *mut c_void; + pub fn malloc_usable_size(ptr: *mut c_void) -> size_t; + pub fn rand() -> c_int; + pub fn read(fd: c_int, ptr: *mut c_void, size: size_t) -> ssize_t; + pub fn realloc(ptr: *mut c_void, amt: size_t) -> *mut c_void; + pub fn setenv(k: *const c_char, v: *const c_char, a: c_int) -> c_int; + pub fn unsetenv(k: *const c_char) -> c_int; + pub fn write(fd: c_int, ptr: *const c_void, size: size_t) -> ssize_t; + pub static mut environ: *mut *mut c_char; + pub fn fopen(a: *const c_char, b: *const c_char) -> *mut FILE; + pub fn freopen( + a: *const c_char, + b: *const c_char, + f: *mut FILE, + ) -> *mut FILE; + pub fn fclose(f: *mut FILE) -> c_int; + pub fn remove(a: *const c_char) -> c_int; + pub fn rename(a: *const c_char, b: *const c_char) -> c_int; + pub fn feof(f: *mut FILE) -> c_int; + pub fn ferror(f: *mut FILE) -> c_int; + pub fn fflush(f: *mut FILE) -> c_int; + pub fn clearerr(f: *mut FILE); + pub fn fseek(f: *mut FILE, b: c_long, c: c_int) -> c_int; + pub fn ftell(f: *mut FILE) -> c_long; + pub fn rewind(f: *mut FILE); + pub fn fgetpos(f: *mut FILE, pos: *mut fpos_t) -> c_int; + pub fn fsetpos(f: *mut FILE, pos: *const fpos_t) -> c_int; + pub fn fread( + buf: *mut c_void, + a: size_t, + b: size_t, + f: *mut FILE, + ) -> size_t; + pub fn fwrite( + buf: *const c_void, + a: size_t, + b: size_t, + f: *mut FILE, + ) -> size_t; + pub fn fgetc(f: *mut FILE) -> c_int; + pub fn getc(f: *mut FILE) -> c_int; + pub fn getchar() -> c_int; + pub fn ungetc(a: c_int, f: *mut FILE) -> c_int; + pub fn fputc(a: c_int, f: *mut FILE) -> c_int; + pub fn putc(a: c_int, f: *mut FILE) -> c_int; + pub fn putchar(a: c_int) -> c_int; + pub fn fputs(a: *const c_char, f: *mut FILE) -> c_int; + pub fn puts(a: *const c_char) -> c_int; + pub fn perror(a: *const c_char); + pub fn srand(a: c_uint); + pub fn atexit(a: extern "C" fn()) -> c_int; + pub fn at_quick_exit(a: extern "C" fn()) -> c_int; + pub fn quick_exit(a: c_int) -> !; + pub fn posix_memalign(a: *mut *mut c_void, b: size_t, c: size_t) -> c_int; + pub fn rand_r(a: *mut c_uint) -> c_int; + pub fn random() -> c_long; + pub fn srandom(a: c_uint); + pub fn putenv(a: *mut c_char) -> c_int; + pub fn clock() -> clock_t; + pub fn time(a: *mut time_t) -> time_t; + pub fn difftime(a: time_t, b: time_t) -> c_double; + pub fn mktime(a: *mut tm) -> time_t; + pub fn strftime( + a: *mut c_char, + b: size_t, + c: *const c_char, + d: *const tm, + ) -> size_t; + pub fn gmtime(a: *const time_t) -> *mut tm; + pub fn gmtime_r(a: *const time_t, b: *mut tm) -> *mut tm; + pub fn localtime_r(a: *const time_t, b: *mut tm) -> *mut tm; + pub fn asctime_r(a: *const tm, b: *mut c_char) -> *mut c_char; + pub fn ctime_r(a: *const time_t, b: *mut c_char) -> *mut c_char; + + #[link_name = "CLOCK_REALTIME"] + pub static __CLOCK_REALTIME_ADDR: __clockid; + #[link_name = "CLOCK_MONOTONIC"] + pub static __CLOCK_MONOTONIC_ADDR: __clockid; + #[link_name = "CLOCK_MONOTONIC_RAW"] + pub static __CLOCK_MONOTONIC_RAW_ADDR: __clockid; + pub fn nanosleep(a: *const timespec, b: *mut timespec) -> c_int; + pub fn clock_getres(a: clockid_t, b: *mut timespec) -> c_int; + pub fn clock_gettime(a: clockid_t, b: *mut timespec) -> c_int; + pub fn clock_nanosleep( + a: clockid_t, + a2: c_int, + b: *const timespec, + c: *mut timespec, + ) -> c_int; + + pub fn __wasilibc_register_preopened_fd( + fd: c_int, + path: *const c_char, + ) -> c_int; + pub fn __wasilibc_fd_renumber(fd: c_int, newfd: c_int) -> c_int; + pub fn __wasilibc_rmfileat(fd: c_int, path: *const c_char) -> c_int; + pub fn __wasilibc_rmdirat(fd: c_int, path: *const c_char) -> c_int; + pub fn __wasilibc_init_preopen(); + + pub fn arc4random() -> u32; + pub fn arc4random_buf(a: *mut c_void, b: usize); + pub fn arc4random_uniform(a: u32) -> u32; +} + +#[link(wasm_import_module = "wasi_unstable")] +extern "C" { + #[link_name = "clock_res_get"] + pub fn __wasi_clock_res_get( + clock_id: __wasi_clockid_t, + resolution: *mut __wasi_timestamp_t, + ) -> __wasi_errno_t; + #[link_name = "clock_time_get"] + pub fn __wasi_clock_time_get( + clock_id: __wasi_clockid_t, + precision: __wasi_timestamp_t, + time: *mut __wasi_timestamp_t, + ) -> __wasi_errno_t; + #[link_name = "fd_close"] + pub fn __wasi_fd_close(fd: __wasi_fd_t) -> __wasi_errno_t; + #[link_name = "fd_datasync"] + pub fn __wasi_fd_datasync(fd: __wasi_fd_t) -> __wasi_errno_t; + #[link_name = "fd_pread"] + pub fn __wasi_fd_pread( + fd: __wasi_fd_t, + iovs: *const __wasi_iovec_t, + iovs_len: usize, + offset: __wasi_filesize_t, + nread: *mut usize, + ) -> __wasi_errno_t; + #[link_name = "fd_pwrite"] + pub fn __wasi_fd_pwrite( + fd: __wasi_fd_t, + iovs: *const __wasi_ciovec_t, + iovs_len: usize, + offset: __wasi_filesize_t, + nwritten: *mut usize, + ) -> __wasi_errno_t; + #[link_name = "fd_read"] + pub fn __wasi_fd_read( + fd: __wasi_fd_t, + iovs: *const __wasi_iovec_t, + iovs_len: usize, + nread: *mut usize, + ) -> __wasi_errno_t; + #[link_name = "fd_renumber"] + pub fn __wasi_fd_renumber( + from: __wasi_fd_t, + to: __wasi_fd_t, + ) -> __wasi_errno_t; + #[link_name = "fd_seek"] + pub fn __wasi_fd_seek( + fd: __wasi_fd_t, + offset: __wasi_filedelta_t, + whence: __wasi_whence_t, + newoffset: *mut __wasi_filesize_t, + ) -> __wasi_errno_t; + #[link_name = "fd_tell"] + pub fn __wasi_fd_tell( + fd: __wasi_fd_t, + newoffset: *mut __wasi_filesize_t, + ) -> __wasi_errno_t; + #[link_name = "fd_fdstat_get"] + pub fn __wasi_fd_fdstat_get( + fd: __wasi_fd_t, + buf: *mut __wasi_fdstat_t, + ) -> __wasi_errno_t; + #[link_name = "fd_fdstat_set_flags"] + pub fn __wasi_fd_fdstat_set_flags( + fd: __wasi_fd_t, + flags: __wasi_fdflags_t, + ) -> __wasi_errno_t; + #[link_name = "fd_fdstat_set_rights"] + pub fn __wasi_fd_fdstat_set_rights( + fd: __wasi_fd_t, + fs_rights_base: __wasi_rights_t, + fs_rights_inheriting: __wasi_rights_t, + ) -> __wasi_errno_t; + #[link_name = "fd_sync"] + pub fn __wasi_fd_sync(fd: __wasi_fd_t) -> __wasi_errno_t; + #[link_name = "fd_write"] + pub fn __wasi_fd_write( + fd: __wasi_fd_t, + iovs: *const __wasi_ciovec_t, + iovs_len: usize, + nwritten: *mut usize, + ) -> __wasi_errno_t; + #[link_name = "fd_advise"] + pub fn __wasi_fd_advise( + fd: __wasi_fd_t, + offset: __wasi_filesize_t, + len: __wasi_filesize_t, + advice: __wasi_advice_t, + ) -> __wasi_errno_t; + #[link_name = "fd_allocate"] + pub fn __wasi_fd_allocate( + fd: __wasi_fd_t, + offset: __wasi_filesize_t, + len: __wasi_filesize_t, + ) -> __wasi_errno_t; + #[link_name = "path_create_directory"] + pub fn __wasi_path_create_directory( + fd: __wasi_fd_t, + path: *const ::c_char, + path_len: usize, + ) -> __wasi_errno_t; + #[link_name = "path_link"] + pub fn __wasi_path_link( + old_fd: __wasi_fd_t, + old_flags: __wasi_lookupflags_t, + old_path: *const ::c_char, + old_path_len: usize, + new_fd: __wasi_fd_t, + new_path: *const ::c_char, + new_path_len: usize, + ) -> __wasi_errno_t; + #[link_name = "path_open"] + pub fn __wasi_path_open( + dirfd: __wasi_fd_t, + dirflags: __wasi_lookupflags_t, + path: *const ::c_char, + path_len: usize, + oflags: __wasi_oflags_t, + fs_rights_base: __wasi_rights_t, + fs_rights_inheriting: __wasi_rights_t, + fs_flags: __wasi_fdflags_t, + fd: *mut __wasi_fd_t, + ) -> __wasi_errno_t; + #[link_name = "fd_readdir"] + pub fn __wasi_fd_readdir( + fd: __wasi_fd_t, + buf: *mut ::c_void, + buf_len: usize, + cookie: __wasi_dircookie_t, + bufused: *mut usize, + ) -> __wasi_errno_t; + #[link_name = "path_readlink"] + pub fn __wasi_path_readlink( + fd: __wasi_fd_t, + path: *const ::c_char, + path_len: usize, + buf: *mut ::c_char, + buf_len: usize, + bufused: *mut usize, + ) -> __wasi_errno_t; + #[link_name = "path_rename"] + pub fn __wasi_path_rename( + old_fd: __wasi_fd_t, + old_path: *const ::c_char, + old_path_len: usize, + new_fd: __wasi_fd_t, + new_path: *const ::c_char, + new_path_len: usize, + ) -> __wasi_errno_t; + #[link_name = "fd_filestat_get"] + pub fn __wasi_fd_filestat_get( + fd: __wasi_fd_t, + buf: *mut __wasi_filestat_t, + ) -> __wasi_errno_t; + #[link_name = "fd_filestat_set_times"] + pub fn __wasi_fd_filestat_set_times( + fd: __wasi_fd_t, + st_atim: __wasi_timestamp_t, + st_mtim: __wasi_timestamp_t, + fstflags: __wasi_fstflags_t, + ) -> __wasi_errno_t; + #[link_name = "fd_filestat_set_size"] + pub fn __wasi_fd_filestat_set_size( + fd: __wasi_fd_t, + st_size: __wasi_filesize_t, + ) -> __wasi_errno_t; + #[link_name = "path_filestat_get"] + pub fn __wasi_path_filestat_get( + fd: __wasi_fd_t, + flags: __wasi_lookupflags_t, + path: *const ::c_char, + path_len: usize, + buf: *mut __wasi_filestat_t, + ) -> __wasi_errno_t; + #[link_name = "path_filestat_set_times"] + pub fn __wasi_path_filestat_set_times( + fd: __wasi_fd_t, + flags: __wasi_lookupflags_t, + path: *const ::c_char, + path_len: usize, + st_atim: __wasi_timestamp_t, + st_mtim: __wasi_timestamp_t, + fstflags: __wasi_fstflags_t, + ) -> __wasi_errno_t; + #[link_name = "path_symlink"] + pub fn __wasi_path_symlink( + old_path: *const ::c_char, + old_path_len: usize, + fd: __wasi_fd_t, + new_path: *const ::c_char, + new_path_len: usize, + ) -> __wasi_errno_t; + #[link_name = "path_unlink_file"] + pub fn __wasi_path_unlink_file( + fd: __wasi_fd_t, + path: *const ::c_char, + path_len: usize, + ) -> __wasi_errno_t; + #[link_name = "path_remove_directory"] + pub fn __wasi_path_remove_directory( + fd: __wasi_fd_t, + path: *const ::c_char, + path_len: usize, + ) -> __wasi_errno_t; + #[link_name = "poll_oneoff"] + pub fn __wasi_poll_oneoff( + in_: *const __wasi_subscription_t, + out: *mut __wasi_event_t, + nsubscriptions: usize, + nevents: *mut usize, + ) -> __wasi_errno_t; + #[link_name = "proc_exit"] + pub fn __wasi_proc_exit(rval: __wasi_exitcode_t); + #[link_name = "proc_raise"] + pub fn __wasi_proc_raise(sig: __wasi_signal_t) -> __wasi_errno_t; + #[link_name = "random_get"] + pub fn __wasi_random_get( + buf: *mut ::c_void, + buf_len: usize, + ) -> __wasi_errno_t; + #[link_name = "sock_recv"] + pub fn __wasi_sock_recv( + sock: __wasi_fd_t, + ri_data: *const __wasi_iovec_t, + ri_data_len: usize, + ri_flags: __wasi_riflags_t, + ro_datalen: *mut usize, + ro_flags: *mut __wasi_roflags_t, + ) -> __wasi_errno_t; + #[link_name = "sock_send"] + pub fn __wasi_sock_send( + sock: __wasi_fd_t, + si_data: *const __wasi_ciovec_t, + si_data_len: usize, + si_flags: __wasi_siflags_t, + so_datalen: *mut usize, + ) -> __wasi_errno_t; + #[link_name = "sock_shutdown"] + pub fn __wasi_sock_shutdown( + sock: __wasi_fd_t, + how: __wasi_sdflags_t, + ) -> __wasi_errno_t; + #[link_name = "sched_yield"] + pub fn __wasi_sched_yield() -> __wasi_errno_t; + #[link_name = "args_get"] + pub fn __wasi_args_get( + argv: *mut *mut c_char, + argv_buf: *mut c_char, + ) -> __wasi_errno_t; + #[link_name = "args_sizes_get"] + pub fn __wasi_args_sizes_get( + argc: *mut usize, + argv_buf_size: *mut usize, + ) -> __wasi_errno_t; + #[link_name = "environ_get"] + pub fn __wasi_environ_get( + environ: *mut *mut c_char, + environ_buf: *mut c_char, + ) -> __wasi_errno_t; + #[link_name = "environ_sizes_get"] + pub fn __wasi_environ_sizes_get( + environ_count: *mut usize, + environ_buf_size: *mut usize, + ) -> __wasi_errno_t; + #[link_name = "fd_prestat_get"] + pub fn __wasi_fd_prestat_get( + fd: __wasi_fd_t, + buf: *mut __wasi_prestat_t, + ) -> __wasi_errno_t; + #[link_name = "fd_prestat_dir_name"] + pub fn __wasi_fd_prestat_dir_name( + fd: __wasi_fd_t, + path: *mut c_char, + path_len: usize, + ) -> __wasi_errno_t; +}