diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index a5a34614cadf..4dac9e1a4a93 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -66,6 +66,12 @@ jobs:
- target: i686-unknown-linux-gnu
docker: true
os: ubuntu-24.04
+ - target: i686-unknown-linux-gnu
+ docker: true
+ os: ubuntu-24.04
+ artifact-tag: offset-bits64
+ env:
+ RUST_LIBC_UNSTABLE_GNU_FILE_OFFSET_BITS: 64
- target: x86_64-unknown-linux-gnu
docker: true
os: ubuntu-24.04
@@ -97,6 +103,13 @@ jobs:
with:
key: ${{ matrix.target }}
+ - name: Add matrix env variables to the environment
+ if: matrix.env
+ run: |
+ echo '${{ toJson(matrix.env) }}' |
+ jq -r 'to_entries | map("\(.key)=\(.value|tostring)") | .[]' >>$GITHUB_ENV
+ shell: bash
+
- name: Run natively
if: "!matrix.docker"
run: ./ci/run.sh ${{ matrix.target }}
@@ -105,11 +118,13 @@ jobs:
run: ./ci/run-docker.sh ${{ matrix.target }}
- name: Create CI artifacts
+ id: create_artifacts
if: always()
run: ./ci/create-artifacts.py
- uses: actions/upload-artifact@v4
+ if: always() && steps.create_artifacts.outcome == 'success'
with:
- name: ${{ env.ARCHIVE_NAME }}-${{ matrix.target }}
+ name: ${{ env.ARCHIVE_NAME }}-${{ matrix.target }}${{ matrix.artifact-tag && format('-{0}', matrix.artifact-tag) }}
path: ${{ env.ARCHIVE_PATH }}
retention-days: 5
@@ -129,15 +144,11 @@ jobs:
- aarch64-unknown-linux-gnu
- aarch64-unknown-linux-musl
- arm-linux-androideabi
- - arm-unknown-linux-gnueabihf
- arm-unknown-linux-musleabihf
- i686-linux-android
- i686-unknown-linux-musl
- loongarch64-unknown-linux-gnu
- loongarch64-unknown-linux-musl
- # FIXME(ppc): SIGILL running tests, see
- # https://github.com/rust-lang/libc/pull/4254#issuecomment-2636288713
- # - powerpc-unknown-linux-gnu
- powerpc64-unknown-linux-gnu
- powerpc64le-unknown-linux-gnu
- riscv64gc-unknown-linux-gnu
@@ -152,6 +163,19 @@ jobs:
# FIXME: It seems some items in `src/unix/mod.rs`
# aren't defined on redox actually.
# - x86_64-unknown-redox
+ include:
+ - target: arm-unknown-linux-gnueabihf
+ - target: arm-unknown-linux-gnueabihf
+ env:
+ RUST_LIBC_UNSTABLE_GNU_FILE_OFFSET_BITS: 64
+ artifact-tag: offset-bits64
+ # FIXME(ppc): SIGILL running tests, see
+ # https://github.com/rust-lang/libc/pull/4254#issuecomment-2636288713
+ # - target: powerpc-unknown-linux-gnu
+ # - target: powerpc-unknown-linux-gnu
+ # env:
+ # RUST_LIBC_UNSTABLE_GNU_FILE_OFFSET_BITS: 64
+ # artifact-tag: offset-bits64
timeout-minutes: 25
env:
TARGET: ${{ matrix.target }}
@@ -163,15 +187,24 @@ jobs:
with:
key: ${{ matrix.target }}
+ - name: Add matrix env variables to the environment
+ if: matrix.env
+ run: |
+ echo '${{ toJson(matrix.env) }}' |
+ jq -r 'to_entries | map("\(.key)=\(.value|tostring)") | .[]' >>$GITHUB_ENV
+ shell: bash
+
- name: Execute run-docker.sh
run: ./ci/run-docker.sh ${{ matrix.target }}
- name: Create CI artifacts
+ id: create_artifacts
if: always()
run: ./ci/create-artifacts.py
- uses: actions/upload-artifact@v4
+ if: always() && steps.create_artifacts.outcome == 'success'
with:
- name: ${{ env.ARCHIVE_NAME }}-${{ matrix.target }}
+ name: ${{ env.ARCHIVE_NAME }}-${{ matrix.target }}${{ matrix.artifact-tag && format('-{0}', matrix.artifact-tag) }}
path: ${{ env.ARCHIVE_PATH }}
retention-days: 5
diff --git a/build.rs b/build.rs
index 968a85d45d5b..106e3fe2ae95 100644
--- a/build.rs
+++ b/build.rs
@@ -13,6 +13,8 @@ const ALLOWED_CFGS: &'static [&'static str] = &[
"freebsd13",
"freebsd14",
"freebsd15",
+ // Corresponds to `_FILE_OFFSET_BITS=64` in glibc
+ "gnu_file_offset_bits64",
// FIXME(ctest): this config shouldn't be needed but ctest can't parse `const extern fn`
"libc_const_extern_fn",
"libc_deny_warnings",
@@ -43,6 +45,10 @@ fn main() {
let (rustc_minor_ver, _is_nightly) = rustc_minor_nightly();
let rustc_dep_of_std = env::var("CARGO_FEATURE_RUSTC_DEP_OF_STD").is_ok();
let libc_ci = env::var("LIBC_CI").is_ok();
+ let target_env = env::var("CARGO_CFG_TARGET_ENV").unwrap_or_default();
+ let target_os = env::var("CARGO_CFG_TARGET_OS").unwrap_or_default();
+ let target_ptr_width = env::var("CARGO_CFG_TARGET_POINTER_WIDTH").unwrap_or_default();
+ let target_arch = env::var("CARGO_CFG_TARGET_ARCH").unwrap_or_default();
// The ABI of libc used by std is backward compatible with FreeBSD 12.
// The ABI of libc from crates.io is backward compatible with FreeBSD 12.
@@ -84,6 +90,20 @@ fn main() {
if linux_time_bits64 {
set_cfg("linux_time_bits64");
}
+ println!("cargo:rerun-if-env-changed=RUST_LIBC_UNSTABLE_GNU_FILE_OFFSET_BITS");
+ match env::var("RUST_LIBC_UNSTABLE_GNU_FILE_OFFSET_BITS") {
+ Ok(val) if val == "64" => {
+ if target_env == "gnu"
+ && target_os == "linux"
+ && target_ptr_width == "32"
+ && target_arch != "riscv32"
+ && target_arch != "x86_64"
+ {
+ set_cfg("gnu_file_offset_bits64");
+ }
+ }
+ _ => {}
+ }
// On CI: deny all warnings
if libc_ci {
diff --git a/ci/run-docker.sh b/ci/run-docker.sh
index fcd9e1a9d2e0..6e18e520ce2d 100755
--- a/ci/run-docker.sh
+++ b/ci/run-docker.sh
@@ -43,12 +43,13 @@ run() {
--user "$(id -u)":"$(id -g)" \
--env LIBC_CI \
--env LIBC_CI_ZBUILD_STD \
+ --env RUST_LIBC_UNSTABLE_GNU_FILE_OFFSET_BITS \
--env CARGO_HOME=/cargo \
--env CARGO_TARGET_DIR=/checkout/target \
--volume "$CARGO_HOME":/cargo \
--volume "$(rustc --print sysroot)":/rust:ro \
- --volume "$(pwd)":/checkout:ro \
- --volume "$(pwd)"/target:/checkout/target \
+ --volume "$PWD":/checkout:ro \
+ --volume "$PWD"/target:/checkout/target \
$kvm \
--init \
--workdir /checkout \
diff --git a/ci/verify-build.sh b/ci/verify-build.sh
index 8e1d7d964d25..79299f18a08b 100755
--- a/ci/verify-build.sh
+++ b/ci/verify-build.sh
@@ -74,6 +74,11 @@ test_target() {
if [ "$os" = "linux" ]; then
# Test with the equivalent of __USE_TIME_BITS64
RUST_LIBC_UNSTABLE_LINUX_TIME_BITS64=1 $cmd
+ case "$target" in
+ # Test with the equivalent of __FILE_OFFSET_BITS=64
+ arm*-gnu*|i*86*-gnu|powerpc-*-gnu*|mips*-gnu|sparc-*-gnu|thumb-*gnu*)
+ RUST_LIBC_UNSTABLE_GNU_FILE_OFFSET_BITS=64 $cmd;;
+ esac
fi
# Test again without default features, i.e. without "std"
@@ -91,7 +96,7 @@ test_target() {
stable-x86_64-*freebsd*) do_freebsd_checks=1 ;;
nightly-i686*freebsd*) do_freebsd_checks=1 ;;
esac
-
+
if [ -n "${do_freebsd_checks:-}" ]; then
for version in $freebsd_versions; do
export RUST_LIBC_UNSTABLE_FREEBSD_VERSION="$version"
@@ -296,7 +301,7 @@ filter_and_run() {
if [ "$target" = "wasm32-wasip2" ] && [ "$supports_wasi_pn" = "0" ]; then
return
fi
-
+
test_target "$target" "$no_dist"
some_tests_run=1
fi
diff --git a/libc-test/build.rs b/libc-test/build.rs
index 76dea8e77c1a..d0e598c9c65e 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -3574,6 +3574,23 @@ fn test_vxworks(target: &str) {
cfg.generate(src_hotfix_dir().join("lib.rs"), "main.rs");
}
+fn config_gnu_bits(target: &str, cfg: &mut ctest::TestGenerator) {
+ match env::var("RUST_LIBC_UNSTABLE_GNU_FILE_OFFSET_BITS") {
+ Ok(val) if val == "64" => {
+ if target.contains("gnu")
+ && target.contains("linux")
+ && !target.ends_with("x32")
+ && !target.contains("riscv32")
+ && env::var("CARGO_CFG_TARGET_POINTER_WIDTH").unwrap() == "32"
+ {
+ cfg.define("_FILE_OFFSET_BITS", Some("64"));
+ cfg.cfg("gnu_file_offset_bits64", None);
+ }
+ }
+ _ => {}
+ }
+}
+
fn test_linux(target: &str) {
assert!(target.contains("linux"));
@@ -3617,6 +3634,8 @@ fn test_linux(target: &str) {
// glibc versions older than 2.29.
cfg.define("__GLIBC_USE_DEPRECATED_SCANF", None);
+ config_gnu_bits(target, &mut cfg);
+
headers! { cfg:
"ctype.h",
"dirent.h",
@@ -4064,8 +4083,7 @@ fn test_linux(target: &str) {
"epoll_params" => true,
// FIXME(linux): Requires >= 6.12 kernel headers.
- "dmabuf_cmsg" |
- "dmabuf_token" => true,
+ "dmabuf_cmsg" | "dmabuf_token" => true,
_ => false,
}
@@ -4779,6 +4797,7 @@ fn test_linux_like_apis(target: &str) {
if linux || android || emscripten {
// test strerror_r from the `string.h` header
let mut cfg = ctest_cfg();
+ config_gnu_bits(target, &mut cfg);
cfg.skip_type(|_| true).skip_static(|_| true);
headers! { cfg: "string.h" }
@@ -4795,6 +4814,7 @@ fn test_linux_like_apis(target: &str) {
// test fcntl - see:
// http://man7.org/linux/man-pages/man2/fcntl.2.html
let mut cfg = ctest_cfg();
+ config_gnu_bits(target, &mut cfg);
if musl {
cfg.header("fcntl.h");
@@ -4824,6 +4844,7 @@ fn test_linux_like_apis(target: &str) {
if (linux && !wali) || android {
// test termios
let mut cfg = ctest_cfg();
+ config_gnu_bits(target, &mut cfg);
cfg.header("asm/termbits.h");
cfg.header("linux/termios.h");
cfg.skip_type(|_| true)
@@ -4848,6 +4869,7 @@ fn test_linux_like_apis(target: &str) {
if linux || android {
// test IPV6_ constants:
let mut cfg = ctest_cfg();
+ config_gnu_bits(target, &mut cfg);
headers! {
cfg:
"linux/in6.h"
@@ -4879,6 +4901,7 @@ fn test_linux_like_apis(target: &str) {
// "resolve.h" defines a `p_type` macro that expands to `__p_type`
// making the tests for these fails when both are included.
let mut cfg = ctest_cfg();
+ config_gnu_bits(target, &mut cfg);
cfg.header("elf.h");
cfg.skip_fn(|_| true)
.skip_static(|_| true)
@@ -4898,6 +4921,7 @@ fn test_linux_like_apis(target: &str) {
if (linux && !wali) || android {
// Test `ARPHRD_CAN`.
let mut cfg = ctest_cfg();
+ config_gnu_bits(target, &mut cfg);
cfg.header("linux/if_arp.h");
cfg.skip_fn(|_| true)
.skip_static(|_| true)
diff --git a/src/unix/linux_like/linux/arch/mips/mod.rs b/src/unix/linux_like/linux/arch/mips/mod.rs
index 1e12a1097202..eee7cc81a47e 100644
--- a/src/unix/linux_like/linux/arch/mips/mod.rs
+++ b/src/unix/linux_like/linux/arch/mips/mod.rs
@@ -379,8 +379,13 @@ cfg_if! {
cfg_if! {
if #[cfg(all(
any(target_arch = "mips", target_arch = "mips32r6"),
- any(target_env = "uclibc", target_env = "gnu"),
- linux_time_bits64
+ any(
+ all(target_env = "uclibc", linux_time_bits64),
+ all(
+ target_env = "gnu",
+ any(linux_time_bits64, gnu_file_offset_bits64)
+ )
+ )
))] {
pub const RLIM_INFINITY: crate::rlim_t = !0;
} else if #[cfg(all(
diff --git a/src/unix/linux_like/linux/gnu/b32/arm/mod.rs b/src/unix/linux_like/linux/gnu/b32/arm/mod.rs
index 28514c0bf42d..2dd4a88674f3 100644
--- a/src/unix/linux_like/linux/gnu/b32/arm/mod.rs
+++ b/src/unix/linux_like/linux/gnu/b32/arm/mod.rs
@@ -61,7 +61,7 @@ s! {
pub struct stat64 {
pub st_dev: crate::dev_t,
__pad1: c_uint,
- __st_ino: crate::ino_t,
+ __st_ino: c_ulong,
pub st_mode: crate::mode_t,
pub st_nlink: crate::nlink_t,
pub st_uid: crate::uid_t,
@@ -397,7 +397,13 @@ pub const MCL_ONFAULT: c_int = 0x0004;
pub const POLLWRNORM: c_short = 0x100;
pub const POLLWRBAND: c_short = 0x200;
-pub const F_GETLK: c_int = 5;
+cfg_if! {
+ if #[cfg(gnu_file_offset_bits64)] {
+ pub const F_GETLK: c_int = 12;
+ } else {
+ pub const F_GETLK: c_int = 5;
+ }
+}
pub const F_GETOWN: c_int = 9;
pub const F_SETOWN: c_int = 8;
diff --git a/src/unix/linux_like/linux/gnu/b32/mips/mod.rs b/src/unix/linux_like/linux/gnu/b32/mips/mod.rs
index cc9ebf2e901d..649a8e04bd47 100644
--- a/src/unix/linux_like/linux/gnu/b32/mips/mod.rs
+++ b/src/unix/linux_like/linux/gnu/b32/mips/mod.rs
@@ -8,22 +8,36 @@ s! {
pub st_dev: c_ulong,
st_pad1: [c_long; 3],
+
pub st_ino: crate::ino_t,
+
pub st_mode: crate::mode_t,
pub st_nlink: crate::nlink_t,
pub st_uid: crate::uid_t,
pub st_gid: crate::gid_t,
+
pub st_rdev: c_ulong,
+
+ #[cfg(not(gnu_file_offset_bits64))]
st_pad2: [c_long; 2],
+ #[cfg(gnu_file_offset_bits64)]
+ st_pad2: [c_long; 3],
+
pub st_size: off_t,
+
+ #[cfg(not(gnu_file_offset_bits64))]
st_pad3: c_long,
+
pub st_atime: crate::time_t,
pub st_atime_nsec: c_long,
pub st_mtime: crate::time_t,
pub st_mtime_nsec: c_long,
pub st_ctime: crate::time_t,
pub st_ctime_nsec: c_long,
+
pub st_blksize: crate::blksize_t,
+ #[cfg(gnu_file_offset_bits64)]
+ st_pad4: c_long,
pub st_blocks: crate::blkcnt_t,
st_pad5: [c_long; 14],
}
@@ -37,7 +51,7 @@ s! {
pub st_uid: crate::uid_t,
pub st_gid: crate::gid_t,
pub st_rdev: c_ulong,
- st_pad2: [c_long; 2],
+ st_pad2: [c_long; 3],
pub st_size: off64_t,
pub st_atime: crate::time_t,
pub st_atime_nsec: c_long,
@@ -176,9 +190,11 @@ s! {
pub l_whence: c_short,
pub l_start: off_t,
pub l_len: off_t,
+ #[cfg(not(gnu_file_offset_bits64))]
pub l_sysid: c_long,
pub l_pid: crate::pid_t,
- pad: [c_long; 4],
+ #[cfg(not(gnu_file_offset_bits64))]
+ __glibc_reserved0: [c_long; 4],
}
}
@@ -745,7 +761,13 @@ pub const MAP_HUGETLB: c_int = 0x080000;
pub const EFD_NONBLOCK: c_int = 0x80;
-pub const F_GETLK: c_int = 14;
+cfg_if! {
+ if #[cfg(gnu_file_offset_bits64)] {
+ pub const F_GETLK: c_int = 33;
+ } else {
+ pub const F_GETLK: c_int = 14;
+ }
+}
pub const F_GETOWN: c_int = 23;
pub const F_SETOWN: c_int = 24;
diff --git a/src/unix/linux_like/linux/gnu/b32/mod.rs b/src/unix/linux_like/linux/gnu/b32/mod.rs
index 134bfb05b747..e9a958478c54 100644
--- a/src/unix/linux_like/linux/gnu/b32/mod.rs
+++ b/src/unix/linux_like/linux/gnu/b32/mod.rs
@@ -20,17 +20,33 @@ cfg_if! {
if #[cfg(target_arch = "riscv32")] {
pub type time_t = i64;
pub type suseconds_t = i64;
- pub type ino_t = u64;
+ type __ino_t = c_ulong;
+ type __ino64_t = u64;
+ pub type ino_t = __ino64_t;
pub type off_t = i64;
pub type blkcnt_t = i64;
pub type fsblkcnt_t = u64;
pub type fsfilcnt_t = u64;
pub type rlim_t = u64;
pub type blksize_t = i64;
+ } else if #[cfg(gnu_file_offset_bits64)] {
+ pub type time_t = i32;
+ pub type suseconds_t = i32;
+ type __ino_t = c_ulong;
+ type __ino64_t = u64;
+ pub type ino_t = __ino64_t;
+ pub type off_t = i64;
+ pub type blkcnt_t = i64;
+ pub type fsblkcnt_t = u64;
+ pub type fsfilcnt_t = u64;
+ pub type rlim_t = u64;
+ pub type blksize_t = i32;
} else {
pub type time_t = i32;
pub type suseconds_t = i32;
- pub type ino_t = u32;
+ type __ino_t = c_ulong;
+ type __ino64_t = u64;
+ pub type ino_t = __ino_t;
pub type off_t = i32;
pub type blkcnt_t = i32;
pub type fsblkcnt_t = c_ulong;
@@ -41,30 +57,50 @@ cfg_if! {
}
cfg_if! {
- if #[cfg(not(any(target_arch = "mips", target_arch = "mips32r6")))] {
+ if #[cfg(not(any(
+ target_arch = "mips",
+ target_arch = "mips32r6",
+ target_arch = "powerpc",
+ target_arch = "sparc"
+ )))] {
s! {
pub struct stat {
pub st_dev: crate::dev_t,
- __pad1: c_short,
+ __pad1: c_uint,
+
+ #[cfg(not(gnu_file_offset_bits64))]
pub st_ino: crate::ino_t,
+ #[cfg(all(gnu_file_offset_bits64))]
+ __st_ino: __ino_t,
+
pub st_mode: crate::mode_t,
pub st_nlink: crate::nlink_t,
pub st_uid: crate::uid_t,
pub st_gid: crate::gid_t,
+
pub st_rdev: crate::dev_t,
- __pad2: c_short,
+
+ __pad2: c_uint,
+
pub st_size: off_t,
+
pub st_blksize: crate::blksize_t,
pub st_blocks: crate::blkcnt_t,
+
pub st_atime: crate::time_t,
pub st_atime_nsec: c_long,
pub st_mtime: crate::time_t,
pub st_mtime_nsec: c_long,
pub st_ctime: crate::time_t,
pub st_ctime_nsec: c_long,
- __unused4: c_long,
- __unused5: c_long,
+
+ #[cfg(not(gnu_file_offset_bits64))]
+ __glibc_reserved4: c_long,
+ #[cfg(not(gnu_file_offset_bits64))]
+ __glibc_reserved5: c_long,
+ #[cfg(gnu_file_offset_bits64)]
+ pub st_ino: crate::ino_t,
}
}
}
@@ -167,9 +203,6 @@ cfg_if! {
pub const PTRACE_DETACH: c_uint = 11;
- pub const F_SETLK: c_int = 8;
- pub const F_SETLKW: c_int = 9;
-
pub const F_RDLCK: c_int = 1;
pub const F_WRLCK: c_int = 2;
pub const F_UNLCK: c_int = 3;
@@ -213,9 +246,6 @@ cfg_if! {
pub const PTRACE_DETACH: c_uint = 17;
- pub const F_SETLK: c_int = 6;
- pub const F_SETLKW: c_int = 7;
-
pub const F_RDLCK: c_int = 0;
pub const F_WRLCK: c_int = 1;
pub const F_UNLCK: c_int = 2;
@@ -251,6 +281,24 @@ cfg_if! {
pub const EFD_CLOEXEC: c_int = 0x80000;
}
}
+cfg_if! {
+ if #[cfg(target_arch = "sparc")] {
+ pub const F_SETLK: c_int = 8;
+ pub const F_SETLKW: c_int = 9;
+ } else if #[cfg(all(
+ gnu_file_offset_bits64,
+ any(target_arch = "mips", target_arch = "mips32r6")
+ ))] {
+ pub const F_SETLK: c_int = 34;
+ pub const F_SETLKW: c_int = 35;
+ } else if #[cfg(gnu_file_offset_bits64)] {
+ pub const F_SETLK: c_int = 13;
+ pub const F_SETLKW: c_int = 14;
+ } else {
+ pub const F_SETLK: c_int = 6;
+ pub const F_SETLKW: c_int = 7;
+ }
+}
#[cfg(target_endian = "little")]
pub const PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP: crate::pthread_mutex_t = pthread_mutex_t {
diff --git a/src/unix/linux_like/linux/gnu/b32/powerpc.rs b/src/unix/linux_like/linux/gnu/b32/powerpc.rs
index b789a86a9772..36da977d688a 100644
--- a/src/unix/linux_like/linux/gnu/b32/powerpc.rs
+++ b/src/unix/linux_like/linux/gnu/b32/powerpc.rs
@@ -57,6 +57,30 @@ s! {
__glibc_reserved2: u64,
}
+ pub struct stat {
+ pub st_dev: crate::dev_t,
+ #[cfg(not(gnu_file_offset_bits64))]
+ __pad1: c_ushort,
+ pub st_ino: crate::ino_t,
+ pub st_mode: crate::mode_t,
+ pub st_nlink: crate::nlink_t,
+ pub st_uid: crate::uid_t,
+ pub st_gid: crate::gid_t,
+ pub st_rdev: crate::dev_t,
+ __pad2: c_ushort,
+ pub st_size: off_t,
+ pub st_blksize: crate::blksize_t,
+ pub st_blocks: crate::blkcnt_t,
+ pub st_atime: crate::time_t,
+ pub st_atime_nsec: c_long,
+ pub st_mtime: crate::time_t,
+ pub st_mtime_nsec: c_long,
+ pub st_ctime: crate::time_t,
+ pub st_ctime_nsec: c_long,
+ __glibc_reserved4: c_ulong,
+ __glibc_reserved5: c_ulong,
+ }
+
pub struct stat64 {
pub st_dev: crate::dev_t,
pub st_ino: crate::ino64_t,
@@ -301,7 +325,13 @@ pub const MCL_ONFAULT: c_int = 0x8000;
pub const POLLWRNORM: c_short = 0x100;
pub const POLLWRBAND: c_short = 0x200;
-pub const F_GETLK: c_int = 5;
+cfg_if! {
+ if #[cfg(gnu_file_offset_bits64)] {
+ pub const F_GETLK: c_int = 12;
+ } else {
+ pub const F_GETLK: c_int = 5;
+ }
+}
pub const F_GETOWN: c_int = 9;
pub const F_SETOWN: c_int = 8;
diff --git a/src/unix/linux_like/linux/gnu/b32/sparc/mod.rs b/src/unix/linux_like/linux/gnu/b32/sparc/mod.rs
index 968cf7734ef8..7533ad689bb4 100644
--- a/src/unix/linux_like/linux/gnu/b32/sparc/mod.rs
+++ b/src/unix/linux_like/linux/gnu/b32/sparc/mod.rs
@@ -26,7 +26,8 @@ s! {
pub f_namelen: crate::__fsword_t,
pub f_frsize: crate::__fsword_t,
- f_spare: [crate::__fsword_t; 5],
+ pub f_flags: crate::__fsword_t,
+ f_spare: [crate::__fsword_t; 4],
}
pub struct siginfo_t {
@@ -60,6 +61,30 @@ s! {
pub ss_size: size_t,
}
+ pub struct stat {
+ pub st_dev: crate::dev_t,
+ #[cfg(not(gnu_file_offset_bits64))]
+ __pad1: c_ushort,
+ pub st_ino: crate::ino_t,
+ pub st_mode: crate::mode_t,
+ pub st_nlink: crate::nlink_t,
+ pub st_uid: crate::uid_t,
+ pub st_gid: crate::gid_t,
+ pub st_rdev: crate::dev_t,
+ __pad2: c_ushort,
+ pub st_size: off_t,
+ pub st_blksize: crate::blksize_t,
+ pub st_blocks: crate::blkcnt_t,
+ pub st_atime: crate::time_t,
+ pub st_atime_nsec: c_long,
+ pub st_mtime: crate::time_t,
+ pub st_mtime_nsec: c_long,
+ pub st_ctime: crate::time_t,
+ pub st_ctime_nsec: c_long,
+ __glibc_reserved4: c_ulong,
+ __glibc_reserved5: c_ulong,
+ }
+
pub struct stat64 {
pub st_dev: crate::dev_t,
pub st_ino: crate::ino64_t,
@@ -78,7 +103,8 @@ s! {
pub st_mtime_nsec: c_long,
pub st_ctime: crate::time_t,
pub st_ctime_nsec: c_long,
- __reserved: [c_long; 2],
+ __glibc_reserved4: c_ulong,
+ __glibc_reserved5: c_ulong,
}
pub struct statfs64 {
@@ -106,6 +132,7 @@ s! {
pub f_ffree: u64,
pub f_favail: u64,
pub f_fsid: c_ulong,
+ __f_unused: c_int,
pub f_flag: c_ulong,
pub f_namemax: c_ulong,
__f_spare: [c_int; 6],
diff --git a/src/unix/linux_like/linux/gnu/b32/x86/mod.rs b/src/unix/linux_like/linux/gnu/b32/x86/mod.rs
index 2ec8692e36a8..c0eb9e89bc44 100644
--- a/src/unix/linux_like/linux/gnu/b32/x86/mod.rs
+++ b/src/unix/linux_like/linux/gnu/b32/x86/mod.rs
@@ -135,7 +135,7 @@ s! {
pub struct stat64 {
pub st_dev: crate::dev_t,
__pad1: c_uint,
- __st_ino: crate::ino_t,
+ __st_ino: c_ulong,
pub st_mode: crate::mode_t,
pub st_nlink: crate::nlink_t,
pub st_uid: crate::uid_t,
@@ -499,7 +499,13 @@ pub const SA_NOCLDWAIT: c_int = 0x00000002;
pub const SOCK_STREAM: c_int = 1;
pub const SOCK_DGRAM: c_int = 2;
-pub const F_GETLK: c_int = 5;
+cfg_if! {
+ if #[cfg(gnu_file_offset_bits64)] {
+ pub const F_GETLK: c_int = 12;
+ } else {
+ pub const F_GETLK: c_int = 5;
+ }
+}
pub const F_GETOWN: c_int = 9;
pub const F_SETOWN: c_int = 8;
diff --git a/src/unix/linux_like/linux/gnu/mod.rs b/src/unix/linux_like/linux/gnu/mod.rs
index f0a051457ac0..fbcfbf255bb9 100644
--- a/src/unix/linux_like/linux/gnu/mod.rs
+++ b/src/unix/linux_like/linux/gnu/mod.rs
@@ -389,6 +389,24 @@ s! {
#[cfg(target_pointer_width = "64")]
__size: [c_char; 32],
}
+
+ pub struct mbstate_t {
+ __count: c_int,
+ __wchb: [c_char; 4],
+ }
+
+ pub struct fpos64_t {
+ __pos: off64_t,
+ __state: crate::mbstate_t,
+ }
+
+ pub struct fpos_t {
+ #[cfg(not(gnu_file_offset_bits64))]
+ __pos: off_t,
+ #[cfg(gnu_file_offset_bits64)]
+ __pos: off64_t,
+ __state: crate::mbstate_t,
+ }
}
impl siginfo_t {
@@ -433,7 +451,11 @@ s_no_extra_traits! {
__return_value: ssize_t,
// FIXME(off64): visible fields depend on __USE_FILE_OFFSET64
pub aio_offset: off_t,
- #[cfg(all(not(target_arch = "x86_64"), target_pointer_width = "32"))]
+ #[cfg(all(
+ not(gnu_file_offset_bits64),
+ not(target_arch = "x86_64"),
+ target_pointer_width = "32"
+ ))]
__pad: [c_char; 4],
__glibc_reserved: [c_char; 32],
}
@@ -1203,8 +1225,11 @@ extern "C" {
pub fn getrlimit64(resource: crate::__rlimit_resource_t, rlim: *mut crate::rlimit64) -> c_int;
pub fn setrlimit64(resource: crate::__rlimit_resource_t, rlim: *const crate::rlimit64)
-> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "getrlimit64")]
pub fn getrlimit(resource: crate::__rlimit_resource_t, rlim: *mut crate::rlimit) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "setrlimit64")]
pub fn setrlimit(resource: crate::__rlimit_resource_t, rlim: *const crate::rlimit) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "prlimit64")]
pub fn prlimit(
pid: crate::pid_t,
resource: crate::__rlimit_resource_t,
@@ -1245,6 +1270,7 @@ extern "C" {
dirfd: c_int,
path: *const c_char,
) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "preadv64v2")]
pub fn preadv2(
fd: c_int,
iov: *const crate::iovec,
@@ -1252,6 +1278,7 @@ extern "C" {
offset: off_t,
flags: c_int,
) -> ssize_t;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "pwritev64v2")]
pub fn pwritev2(
fd: c_int,
iov: *const crate::iovec,
diff --git a/src/unix/linux_like/linux/mod.rs b/src/unix/linux_like/linux/mod.rs
index ee00d02587b6..4e70afc061fa 100644
--- a/src/unix/linux_like/linux/mod.rs
+++ b/src/unix/linux_like/linux/mod.rs
@@ -74,9 +74,14 @@ pub type iconv_t = *mut c_void;
pub type sctp_assoc_t = __s32;
pub type eventfd_t = u64;
-missing! {
- #[cfg_attr(feature = "extra_traits", derive(Debug))]
- pub enum fpos64_t {} // FIXME(linux): fill this out with a struct
+
+cfg_if! {
+ if #[cfg(not(target_env = "gnu"))] {
+ missing! {
+ #[cfg_attr(feature = "extra_traits", derive(Debug))]
+ pub enum fpos64_t {} // FIXME(linux): fill this out with a struct
+ }
+ }
}
e! {
@@ -6134,17 +6139,23 @@ cfg_if! {
cfg_if! {
if #[cfg(all(not(target_env = "uclibc"), not(target_env = "ohos")))] {
extern "C" {
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "aio_read64")]
pub fn aio_read(aiocbp: *mut aiocb) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "aio_write64")]
pub fn aio_write(aiocbp: *mut aiocb) -> c_int;
pub fn aio_fsync(op: c_int, aiocbp: *mut aiocb) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "aio_error64")]
pub fn aio_error(aiocbp: *const aiocb) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "aio_return64")]
pub fn aio_return(aiocbp: *mut aiocb) -> ssize_t;
pub fn aio_suspend(
aiocb_list: *const *const aiocb,
nitems: c_int,
timeout: *const crate::timespec,
) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "aio_cancel64")]
pub fn aio_cancel(fd: c_int, aiocbp: *mut aiocb) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "lio_listio64")]
pub fn lio_listio(
mode: c_int,
aiocb_list: *const *mut aiocb,
@@ -6158,12 +6169,14 @@ cfg_if! {
cfg_if! {
if #[cfg(not(target_env = "uclibc"))] {
extern "C" {
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "pwritev64")]
pub fn pwritev(
fd: c_int,
iov: *const crate::iovec,
iovcnt: c_int,
offset: off_t,
) -> ssize_t;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "preadv64")]
pub fn preadv(
fd: c_int,
iov: *const crate::iovec,
@@ -6328,7 +6341,9 @@ extern "C" {
pub fn mprotect(addr: *mut c_void, len: size_t, prot: c_int) -> c_int;
pub fn __errno_location() -> *mut c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "fallocate64")]
pub fn fallocate(fd: c_int, mode: c_int, offset: off_t, len: off_t) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "posix_fallocate64")]
pub fn posix_fallocate(fd: c_int, offset: off_t, len: off_t) -> c_int;
pub fn readahead(fd: c_int, offset: off64_t, count: size_t) -> ssize_t;
pub fn getxattr(
@@ -6435,12 +6450,14 @@ extern "C" {
...
) -> *mut c_void;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "glob64")]
pub fn glob(
pattern: *const c_char,
flags: c_int,
errfunc: Option<extern "C" fn(epath: *const c_char, errno: c_int) -> c_int>,
pglob: *mut crate::glob_t,
) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "globfree64")]
pub fn globfree(pglob: *mut crate::glob_t);
pub fn posix_madvise(addr: *mut c_void, len: size_t, advice: c_int) -> c_int;
@@ -6466,6 +6483,7 @@ extern "C" {
addr: *mut crate::sockaddr,
addrlen: *mut crate::socklen_t,
) -> ssize_t;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "mkstemps64")]
pub fn mkstemps(template: *mut c_char, suffixlen: c_int) -> c_int;
pub fn nl_langinfo(item: crate::nl_item) -> *mut c_char;
@@ -6630,6 +6648,7 @@ extern "C" {
policy: c_int,
param: *const crate::sched_param,
) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "sendfile64")]
pub fn sendfile(out_fd: c_int, in_fd: c_int, offset: *mut off_t, count: size_t) -> ssize_t;
pub fn sigsuspend(mask: *const crate::sigset_t) -> c_int;
pub fn getgrgid_r(
diff --git a/src/unix/linux_like/mod.rs b/src/unix/linux_like/mod.rs
index 3b84d97bc3b0..b38ab732d9dd 100644
--- a/src/unix/linux_like/mod.rs
+++ b/src/unix/linux_like/mod.rs
@@ -1786,9 +1786,12 @@ extern "C" {
pub fn memalign(align: size_t, size: size_t) -> *mut c_void;
pub fn setgroups(ngroups: size_t, ptr: *const crate::gid_t) -> c_int;
pub fn pipe2(fds: *mut c_int, flags: c_int) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "statfs64")]
pub fn statfs(path: *const c_char, buf: *mut statfs) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "fstatfs64")]
pub fn fstatfs(fd: c_int, buf: *mut statfs) -> c_int;
pub fn memrchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "posix_fadvise64")]
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 crate::timespec) -> c_int;
pub fn utimensat(
@@ -1886,7 +1889,9 @@ extern "C" {
) -> size_t;
pub fn strptime(s: *const c_char, format: *const c_char, tm: *mut crate::tm) -> *mut c_char;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "mkostemp64")]
pub fn mkostemp(template: *mut c_char, flags: c_int) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "mkostemps64")]
pub fn mkostemps(template: *mut c_char, suffixlen: c_int, flags: c_int) -> c_int;
pub fn getdomainname(name: *mut c_char, len: size_t) -> c_int;
diff --git a/src/unix/mod.rs b/src/unix/mod.rs
index 2db79f5ac00c..77e9ab1c09e1 100644
--- a/src/unix/mod.rs
+++ b/src/unix/mod.rs
@@ -538,11 +538,18 @@ cfg_if! {
}
}
+cfg_if! {
+ if #[cfg(not(target_env = "gnu"))] {
+ missing! {
+ #[cfg_attr(feature = "extra_traits", derive(Debug))]
+ pub enum fpos_t {} // FIXME(unix): fill this out with a struct
+ }
+ }
+}
+
missing! {
#[cfg_attr(feature = "extra_traits", derive(Debug))]
pub enum FILE {}
- #[cfg_attr(feature = "extra_traits", derive(Debug))]
- pub enum fpos_t {} // FIXME(unix): fill this out with a struct
}
extern "C" {
@@ -577,17 +584,20 @@ extern "C" {
all(target_os = "macos", target_arch = "x86"),
link_name = "fopen$UNIX2003"
)]
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "fopen64")]
pub fn fopen(filename: *const c_char, mode: *const c_char) -> *mut FILE;
#[cfg_attr(
all(target_os = "macos", target_arch = "x86"),
link_name = "freopen$UNIX2003"
)]
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "freopen64")]
pub fn freopen(filename: *const c_char, mode: *const c_char, file: *mut FILE) -> *mut FILE;
pub fn fflush(file: *mut FILE) -> c_int;
pub fn fclose(file: *mut FILE) -> c_int;
pub fn remove(filename: *const c_char) -> c_int;
pub fn rename(oldname: *const c_char, newname: *const c_char) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "tmpfile64")]
pub fn tmpfile() -> *mut FILE;
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);
@@ -613,8 +623,10 @@ extern "C" {
pub fn ftell(stream: *mut FILE) -> c_long;
pub fn rewind(stream: *mut FILE);
#[cfg_attr(target_os = "netbsd", link_name = "__fgetpos50")]
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "fgetpos64")]
pub fn fgetpos(stream: *mut FILE, ptr: *mut fpos_t) -> c_int;
#[cfg_attr(target_os = "netbsd", link_name = "__fsetpos50")]
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "fsetpos64")]
pub fn fsetpos(stream: *mut FILE, ptr: *const fpos_t) -> c_int;
pub fn feof(stream: *mut FILE) -> c_int;
pub fn ferror(stream: *mut FILE) -> c_int;
@@ -826,6 +838,7 @@ extern "C" {
all(target_os = "freebsd", any(freebsd11, freebsd10)),
link_name = "fstat@FBSD_1.0"
)]
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "fstat64")]
pub fn fstat(fildes: c_int, buf: *mut stat) -> c_int;
pub fn mkdir(path: *const c_char, mode: mode_t) -> c_int;
@@ -839,6 +852,7 @@ extern "C" {
all(target_os = "freebsd", any(freebsd11, freebsd10)),
link_name = "stat@FBSD_1.0"
)]
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "stat64")]
pub fn stat(path: *const c_char, buf: *mut stat) -> c_int;
pub fn pclose(stream: *mut crate::FILE) -> c_int;
@@ -853,16 +867,19 @@ extern "C" {
all(target_os = "macos", target_arch = "x86"),
link_name = "open$UNIX2003"
)]
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "open64")]
pub fn open(path: *const c_char, oflag: c_int, ...) -> c_int;
#[cfg_attr(
all(target_os = "macos", target_arch = "x86"),
link_name = "creat$UNIX2003"
)]
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "creat64")]
pub fn creat(path: *const c_char, mode: mode_t) -> c_int;
#[cfg_attr(
all(target_os = "macos", target_arch = "x86"),
link_name = "fcntl$UNIX2003"
)]
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "__fcntl_time64")]
pub fn fcntl(fd: c_int, cmd: c_int, ...) -> c_int;
#[cfg_attr(
@@ -885,6 +902,7 @@ extern "C" {
all(target_os = "freebsd", any(freebsd11, freebsd10)),
link_name = "readdir@FBSD_1.0"
)]
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "readdir64")]
pub fn readdir(dirp: *mut crate::DIR) -> *mut crate::dirent;
#[cfg_attr(
all(target_os = "macos", target_arch = "x86"),
@@ -923,6 +941,7 @@ extern "C" {
all(target_os = "freebsd", any(freebsd11, freebsd10)),
link_name = "fstatat@FBSD_1.1"
)]
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "fstatat64")]
pub fn fstatat(dirfd: c_int, pathname: *const c_char, buf: *mut stat, flags: c_int) -> c_int;
pub fn linkat(
olddirfd: c_int,
@@ -992,6 +1011,7 @@ extern "C" {
pub fn isatty(fd: c_int) -> c_int;
#[cfg_attr(target_os = "solaris", link_name = "__link_xpg4")]
pub fn link(src: *const c_char, dst: *const c_char) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "lseek64")]
pub fn lseek(fd: c_int, offset: off_t, whence: c_int) -> off_t;
pub fn pathconf(path: *const c_char, name: c_int) -> c_long;
pub fn pipe(fds: *mut c_int) -> c_int;
@@ -1054,11 +1074,13 @@ extern "C" {
all(target_os = "macos", target_arch = "x86"),
link_name = "pread$UNIX2003"
)]
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "pread64")]
pub fn pread(fd: c_int, buf: *mut c_void, count: size_t, offset: off_t) -> ssize_t;
#[cfg_attr(
all(target_os = "macos", target_arch = "x86"),
link_name = "pwrite$UNIX2003"
)]
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "pwrite64")]
pub fn pwrite(fd: c_int, buf: *const c_void, count: size_t, offset: off_t) -> ssize_t;
pub fn umask(mask: mode_t) -> mode_t;
@@ -1085,6 +1107,7 @@ extern "C" {
all(target_os = "macos", target_arch = "x86"),
link_name = "mmap$UNIX2003"
)]
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "mmap64")]
pub fn mmap(
addr: *mut c_void,
len: size_t,
@@ -1111,6 +1134,7 @@ extern "C" {
all(target_os = "freebsd", any(freebsd11, freebsd10)),
link_name = "lstat@FBSD_1.0"
)]
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "lstat64")]
pub fn lstat(path: *const c_char, buf: *mut stat) -> c_int;
#[cfg_attr(
@@ -1133,7 +1157,9 @@ extern "C" {
pub fn symlink(path1: *const c_char, path2: *const c_char) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "truncate64")]
pub fn truncate(path: *const c_char, length: off_t) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "ftruncate64")]
pub fn ftruncate(fd: c_int, length: off_t) -> c_int;
pub fn signal(signum: c_int, handler: sighandler_t) -> sighandler_t;
@@ -1438,7 +1464,9 @@ extern "C" {
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;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "statvfs64")]
pub fn statvfs(path: *const c_char, buf: *mut statvfs) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "fstatvfs64")]
pub fn fstatvfs(fd: c_int, buf: *mut statvfs) -> c_int;
#[cfg_attr(target_os = "netbsd", link_name = "__sigemptyset14")]
@@ -1462,7 +1490,9 @@ extern "C" {
pub fn mkfifo(path: *const c_char, mode: mode_t) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "fseeko64")]
pub fn fseeko(stream: *mut crate::FILE, offset: off_t, whence: c_int) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "ftello64")]
pub fn ftello(stream: *mut crate::FILE) -> off_t;
#[cfg_attr(
all(target_os = "macos", target_arch = "x86"),
@@ -1479,6 +1509,7 @@ extern "C" {
pub fn tcflush(fd: c_int, action: c_int) -> c_int;
pub fn tcgetsid(fd: c_int) -> crate::pid_t;
pub fn tcsendbreak(fd: c_int, duration: c_int) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "mkstemp64")]
pub fn mkstemp(template: *mut c_char) -> c_int;
pub fn mkdtemp(template: *mut c_char) -> *mut c_char;
@@ -1503,6 +1534,7 @@ extern "C" {
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;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "lockf64")]
pub fn lockf(fd: c_int, cmd: c_int, len: off_t) -> c_int;
}
@@ -1603,6 +1635,7 @@ cfg_if! {
pub fn pause() -> c_int;
pub fn mkdirat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t) -> c_int;
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "openat64")]
pub fn openat(dirfd: c_int, pathname: *const c_char, flags: c_int, ...) -> c_int;
#[cfg_attr(
@@ -1631,6 +1664,7 @@ cfg_if! {
/// https://illumos.org/man/3lib/libc
/// https://docs.oracle.com/cd/E36784_01/html/E36873/libc-3lib.html
/// https://www.unix.com/man-page/opensolaris/3LIB/libc/
+ #[cfg_attr(gnu_file_offset_bits64, link_name = "readdir64_r")]
pub fn readdir_r(
dirp: *mut crate::DIR,
entry: *mut crate::dirent,