diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 73d2f9f42c785..d581b362ebacf 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -232,7 +232,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: test on Solaris
-        uses: vmactions/solaris-vm@v1
+        uses: vmactions/solaris-vm@v1.1.3
         with:
           release: "11.4-gcc"
           usesh: true
diff --git a/Cargo.toml b/Cargo.toml
index cabbc528a16c2..9e53e45110a7e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,21 +1,16 @@
 [package]
 name = "libc"
 version = "0.2.172"
-authors = ["The Rust Project Developers"]
-license = "MIT OR Apache-2.0"
-readme = "README.md"
-edition = "2021"
-repository = "https://github.com/rust-lang/libc"
-homepage = "https://github.com/rust-lang/libc"
-documentation = "https://docs.rs/libc/"
 keywords = ["libc", "ffi", "bindings", "operating", "system"]
 categories = ["external-ffi-bindings", "no-std", "os"]
-build = "build.rs"
 exclude = ["/ci/*", "/.github/*", "/.cirrus.yml", "/triagebot.toml"]
+description = "Raw FFI bindings to platform libraries like libc."
+publish = false # On the main branch, we don't want to publish anything
+authors = ["The Rust Project Developers"]
+edition = "2021"
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/rust-lang/libc"
 rust-version = "1.63"
-description = """
-Raw FFI bindings to platform libraries like libc.
-"""
 
 [package.metadata.docs.rs]
 features = ["extra_traits"]
diff --git a/build.rs b/build.rs
index bf5277a9a9968..ec2c599ca7de0 100644
--- a/build.rs
+++ b/build.rs
@@ -241,7 +241,13 @@ fn which_freebsd() -> Option<i32> {
 }
 
 fn emcc_version_code() -> Option<u64> {
-    let output = Command::new("emcc").arg("-dumpversion").output().ok()?;
+    let emcc = if cfg!(target_os = "windows") {
+        "emcc.bat"
+    } else {
+        "emcc"
+    };
+
+    let output = Command::new(emcc).arg("-dumpversion").output().ok()?;
     if !output.status.success() {
         return None;
     }
diff --git a/libc-test/Cargo.toml b/libc-test/Cargo.toml
index 26b38621fb3c8..9573c3fdb8288 100644
--- a/libc-test/Cargo.toml
+++ b/libc-test/Cargo.toml
@@ -1,16 +1,12 @@
 [package]
 name = "libc-test"
-version = "0.2.155"
-edition = "2021"
+version = "0.1.0"
+description = "A test crate for the libc crate."
+publish = false
 authors = ["The Rust Project Developers"]
+edition = "2021"
 license = "MIT OR Apache-2.0"
-build = "build.rs"
-publish = false
 repository = "https://github.com/rust-lang/libc"
-homepage = "https://github.com/rust-lang/libc"
-description = """
-A test crate for the libc crate.
-"""
 
 [dependencies]
 cfg-if = "1.0.0"
diff --git a/libc-test/build.rs b/libc-test/build.rs
index 4955e8545d8aa..7d6e5fe6d7330 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -4123,6 +4123,10 @@ fn test_linux(target: &str) {
             // Might differ between kernel versions
             "open_how" => true,
 
+            // Linux >= 6.13 (pidfd_info.exit_code: Linux >= 6.15)
+            // Might differ between kernel versions
+            "pidfd_info" => true,
+
             "sctp_initmsg" | "sctp_sndrcvinfo" | "sctp_sndinfo" | "sctp_rcvinfo"
             | "sctp_nxtinfo" | "sctp_prinfo" | "sctp_authinfo" => true,
 
@@ -4229,6 +4233,7 @@ fn test_linux(target: &str) {
                 || name.starts_with("OPEN_TREE_")
                 || name.starts_with("P_")
                 || name.starts_with("PF_")
+                || name.starts_with("PIDFD_")
                 || name.starts_with("RLIMIT_")
                 || name.starts_with("RTEXT_FILTER_")
                 || name.starts_with("SOL_")
@@ -4297,6 +4302,10 @@ fn test_linux(target: &str) {
             if loongarch64 && (name == "MFD_NOEXEC_SEAL" || name == "MFD_EXEC") {
                 return true;
             }
+            // FIXME: Requires >= 6.3 (6.6) kernel headers
+            if name == "PR_GET_MDWE" || name == "PR_MDWE_NO_INHERIT" || name == "PR_MDWE_REFUSE_EXEC_GAIN" || name == "PR_SET_MDWE" {
+                return true;
+            }
             // FIXME(musl): Requires musl >= 1.2
             if name == "SO_PREFER_BUSY_POLL"
                 || name == "SO_BUSY_POLL_BUDGET"
@@ -4432,6 +4441,30 @@ fn test_linux(target: &str) {
 
             // headers conflicts with linux/pidfd.h
             "PIDFD_NONBLOCK" => true,
+            // Linux >= 6.9
+            "PIDFD_THREAD"
+            | "PIDFD_SIGNAL_THREAD"
+            | "PIDFD_SIGNAL_THREAD_GROUP"
+            | "PIDFD_SIGNAL_PROCESS_GROUP" => true,
+            // Linux >= 6.11
+            "PIDFD_GET_CGROUP_NAMESPACE"
+            | "PIDFD_GET_IPC_NAMESPACE"
+            | "PIDFD_GET_MNT_NAMESPACE"
+            | "PIDFD_GET_NET_NAMESPACE"
+            | "PIDFD_GET_PID_NAMESPACE"
+            | "PIDFD_GET_PID_FOR_CHILDREN_NAMESPACE"
+            | "PIDFD_GET_TIME_NAMESPACE"
+            | "PIDFD_GET_TIME_FOR_CHILDREN_NAMESPACE"
+            | "PIDFD_GET_USER_NAMESPACE"
+            | "PIDFD_GET_UTS_NAMESPACE" => true,
+            // Linux >= 6.13
+            "PIDFD_GET_INFO"
+            | "PIDFD_INFO_PID"
+            | "PIDFD_INFO_CREDS"
+            | "PIDFD_INFO_CGROUPID"
+            | "PIDFD_INFO_SIZE_VER0" => true,
+            // Linux >= 6.15
+            "PIDFD_INFO_EXIT" | "PIDFD_SELF" | "PIDFD_SELF_PROCESS" => true,
 
             // is a private value for kernel usage normally
             "FUSE_SUPER_MAGIC" => true,
@@ -4554,6 +4587,9 @@ fn test_linux(target: &str) {
                 true
             }
 
+            // FIXME(linux): Requires >= 6.6 kernel headers.
+            "PR_MDWE_NO_INHERIT" => true,
+
             // FIXME(linux): Requires >= 6.8 kernel headers.
             "XDP_UMEM_TX_SW_CSUM"
             | "XDP_TXMD_FLAGS_TIMESTAMP"
@@ -4851,7 +4887,9 @@ fn test_linux(target: &str) {
         (struct_ == "statvfs" && field == "__f_spare") ||
         (struct_ == "statvfs64" && field == "__f_spare") ||
         // the `xsk_tx_metadata_union` field is an anonymous union
-        (struct_ == "xsk_tx_metadata" && field == "xsk_tx_metadata_union")
+        (struct_ == "xsk_tx_metadata" && field == "xsk_tx_metadata_union") ||
+        // FIXME(musl): After musl 1.2.0, the type becomes `int` instead of `long`.
+        (struct_ == "utmpx" && field == "ut_session")
     });
 
     cfg.skip_roundtrip(move |s| match s {
diff --git a/libc-test/semver/linux-musl.txt b/libc-test/semver/linux-musl.txt
index e2fdcbf006c64..462f45f7d13b0 100644
--- a/libc-test/semver/linux-musl.txt
+++ b/libc-test/semver/linux-musl.txt
@@ -28,7 +28,6 @@ OLD_TIME
 PF_IB
 PF_MPLS
 PF_XDP
-PIDFD_NONBLOCK
 PR_SET_VMA
 PR_SET_VMA_ANON_NAME
 RUN_LVL
diff --git a/libc-test/semver/linux.txt b/libc-test/semver/linux.txt
index 9bf5ec61c461f..011fba0d85b6b 100644
--- a/libc-test/semver/linux.txt
+++ b/libc-test/semver/linux.txt
@@ -2084,6 +2084,7 @@ PACKET_FANOUT_QM
 PACKET_FANOUT_RND
 PACKET_FANOUT_ROLLOVER
 PACKET_HOST
+PACKET_IGNORE_OUTGOING
 PACKET_KERNEL
 PACKET_LOOPBACK
 PACKET_LOSS
@@ -2171,6 +2172,32 @@ PF_WANPIPE
 PF_WQ_WORKER
 PF_X
 PF_X25
+PIDFD_GET_CGROUP_NAMESPACE
+PIDFD_GET_INFO
+PIDFD_GET_IPC_NAMESPACE
+PIDFD_GET_MNT_NAMESPACE
+PIDFD_GET_NET_NAMESPACE
+PIDFD_GET_PID_FOR_CHILDREN_NAMESPACE
+PIDFD_GET_PID_NAMESPACE
+PIDFD_GET_TIME_FOR_CHILDREN_NAMESPACE
+PIDFD_GET_TIME_NAMESPACE
+PIDFD_GET_USER_NAMESPACE
+PIDFD_GET_UTS_NAMESPACE
+PIDFD_INFO_CGROUPID
+PIDFD_INFO_CREDS
+PIDFD_INFO_EXIT
+PIDFD_INFO_PID
+PIDFD_INFO_SIZE_VER0
+PIDFD_NONBLOCK
+PIDFD_SIGNAL_PROCESS_GROUP
+PIDFD_SIGNAL_THREAD
+PIDFD_SIGNAL_THREAD_GROUP
+PIDFD_THREAD
+PIDTYPE_MAX
+PIDTYPE_PGID
+PIDTYPE_PID
+PIDTYPE_SID
+PIDTYPE_TGID
 PIPE_BUF
 PM_STR
 POLLRDBAND
@@ -2229,6 +2256,7 @@ PR_GET_FPEMU
 PR_GET_FPEXC
 PR_GET_FP_MODE
 PR_GET_KEEPCAPS
+PR_GET_MDWE
 PR_GET_NAME
 PR_GET_NO_NEW_PRIVS
 PR_GET_PDEATHSIG
@@ -2247,6 +2275,8 @@ PR_MCE_KILL_EARLY
 PR_MCE_KILL_GET
 PR_MCE_KILL_LATE
 PR_MCE_KILL_SET
+PR_MDWE_NO_INHERIT
+PR_MDWE_REFUSE_EXEC_GAIN
 PR_MPX_DISABLE_MANAGEMENT
 PR_MPX_ENABLE_MANAGEMENT
 PR_SCHED_CORE
@@ -2265,6 +2295,7 @@ PR_SET_FPEMU
 PR_SET_FPEXC
 PR_SET_FP_MODE
 PR_SET_KEEPCAPS
+PR_SET_MDWE
 PR_SET_MM
 PR_SET_MM_ARG_END
 PR_SET_MM_ARG_START
@@ -4038,6 +4069,8 @@ packet_mreq
 pause
 personality
 pgn_t
+pid_type
+pidfd_info
 pipe2
 popen
 posix_fadvise
diff --git a/libc-test/semver/redox.txt b/libc-test/semver/redox.txt
index 8e7403982e216..3c3c52eabb4f0 100644
--- a/libc-test/semver/redox.txt
+++ b/libc-test/semver/redox.txt
@@ -135,6 +135,7 @@ O_SHLOCK
 O_SYMLINK
 PTHREAD_STACK_MIN
 SA_RESTORER
+SCM_RIGHTS
 SIGIO
 SIGPWR
 SIGSTKFLT
diff --git a/libc-test/semver/windows.txt b/libc-test/semver/windows.txt
index db55da5f4e48d..281a13bb73034 100644
--- a/libc-test/semver/windows.txt
+++ b/libc-test/semver/windows.txt
@@ -174,12 +174,15 @@ c_void
 calloc
 chdir
 chmod
+clock
 clock_t
 close
 commit
 connect
 creat
+ctime
 dev_t
+difftime
 dup
 dup2
 errno_t
@@ -214,7 +217,11 @@ fsetpos
 fstat
 ftell
 fwrite
+get_daylight
+get_dstbias
 get_osfhandle
+get_timezone
+get_tzname
 getchar
 getcwd
 getenv
@@ -326,6 +333,7 @@ tm
 tmpfile
 tolower
 toupper
+tzset
 uint16_t
 uint32_t
 uint64_t
diff --git a/src/fuchsia/mod.rs b/src/fuchsia/mod.rs
index b60201791b645..f065eaa3aec8b 100644
--- a/src/fuchsia/mod.rs
+++ b/src/fuchsia/mod.rs
@@ -1452,9 +1452,9 @@ pub const GRPQUOTA: c_int = 1;
 
 pub const SIGIOT: c_int = 6;
 
-pub const S_ISUID: crate::mode_t = 0o4000;
-pub const S_ISGID: crate::mode_t = 0o2000;
-pub const S_ISVTX: crate::mode_t = 0o1000;
+pub const S_ISUID: mode_t = 0o4000;
+pub const S_ISGID: mode_t = 0o2000;
+pub const S_ISVTX: mode_t = 0o1000;
 
 pub const IF_NAMESIZE: size_t = 16;
 pub const IFNAMSIZ: size_t = IF_NAMESIZE;
@@ -1585,26 +1585,26 @@ pub const O_RDONLY: c_int = 0;
 pub const O_WRONLY: c_int = 1;
 pub const O_RDWR: c_int = 2;
 
-pub const S_IFIFO: crate::mode_t = 0o1_0000;
-pub const S_IFCHR: crate::mode_t = 0o2_0000;
-pub const S_IFBLK: crate::mode_t = 0o6_0000;
-pub const S_IFDIR: crate::mode_t = 0o4_0000;
-pub const S_IFREG: crate::mode_t = 0o10_0000;
-pub const S_IFLNK: crate::mode_t = 0o12_0000;
-pub const S_IFSOCK: crate::mode_t = 0o14_0000;
-pub const S_IFMT: crate::mode_t = 0o17_0000;
-pub const S_IRWXU: crate::mode_t = 0o0700;
-pub const S_IXUSR: crate::mode_t = 0o0100;
-pub const S_IWUSR: crate::mode_t = 0o0200;
-pub const S_IRUSR: crate::mode_t = 0o0400;
-pub const S_IRWXG: crate::mode_t = 0o0070;
-pub const S_IXGRP: crate::mode_t = 0o0010;
-pub const S_IWGRP: crate::mode_t = 0o0020;
-pub const S_IRGRP: crate::mode_t = 0o0040;
-pub const S_IRWXO: crate::mode_t = 0o0007;
-pub const S_IXOTH: crate::mode_t = 0o0001;
-pub const S_IWOTH: crate::mode_t = 0o0002;
-pub const S_IROTH: crate::mode_t = 0o0004;
+pub const S_IFIFO: mode_t = 0o1_0000;
+pub const S_IFCHR: mode_t = 0o2_0000;
+pub const S_IFBLK: mode_t = 0o6_0000;
+pub const S_IFDIR: mode_t = 0o4_0000;
+pub const S_IFREG: mode_t = 0o10_0000;
+pub const S_IFLNK: mode_t = 0o12_0000;
+pub const S_IFSOCK: mode_t = 0o14_0000;
+pub const S_IFMT: mode_t = 0o17_0000;
+pub const S_IRWXU: mode_t = 0o0700;
+pub const S_IXUSR: mode_t = 0o0100;
+pub const S_IWUSR: mode_t = 0o0200;
+pub const S_IRUSR: mode_t = 0o0400;
+pub const S_IRWXG: mode_t = 0o0070;
+pub const S_IXGRP: mode_t = 0o0010;
+pub const S_IWGRP: mode_t = 0o0020;
+pub const S_IRGRP: mode_t = 0o0040;
+pub const S_IRWXO: mode_t = 0o0007;
+pub const S_IXOTH: mode_t = 0o0001;
+pub const S_IWOTH: mode_t = 0o0002;
+pub const S_IROTH: mode_t = 0o0004;
 pub const F_OK: c_int = 0;
 pub const R_OK: c_int = 4;
 pub const W_OK: c_int = 2;
@@ -3726,12 +3726,7 @@ extern "C" {
     pub fn rewinddir(dirp: *mut crate::DIR);
 
     pub fn openat(dirfd: c_int, pathname: *const c_char, flags: c_int, ...) -> c_int;
-    pub fn fchmodat(
-        dirfd: c_int,
-        pathname: *const c_char,
-        mode: crate::mode_t,
-        flags: c_int,
-    ) -> c_int;
+    pub fn fchmodat(dirfd: c_int, pathname: *const c_char, mode: mode_t, flags: c_int) -> c_int;
     pub fn fchown(fd: c_int, owner: crate::uid_t, group: crate::gid_t) -> c_int;
     pub fn fchownat(
         dirfd: c_int,
@@ -3748,7 +3743,7 @@ extern "C" {
         newpath: *const c_char,
         flags: c_int,
     ) -> c_int;
-    pub fn mkdirat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t) -> 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,
@@ -3966,7 +3961,7 @@ extern "C" {
     pub fn gmtime(time_p: *const time_t) -> *mut tm;
     pub fn localtime(time_p: *const time_t) -> *mut tm;
 
-    pub fn mknod(pathname: *const c_char, mode: crate::mode_t, dev: crate::dev_t) -> c_int;
+    pub fn mknod(pathname: *const c_char, mode: mode_t, dev: crate::dev_t) -> c_int;
     pub fn uname(buf: *mut crate::utsname) -> c_int;
     pub fn gethostname(name: *mut c_char, len: size_t) -> c_int;
     pub fn getservbyname(name: *const c_char, proto: *const c_char) -> *mut servent;
@@ -4086,8 +4081,7 @@ extern "C" {
 
     pub fn fdopendir(fd: c_int) -> *mut crate::DIR;
 
-    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t, dev: dev_t)
-        -> c_int;
+    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: mode_t, dev: dev_t) -> c_int;
     pub fn pthread_condattr_getclock(
         attr: *const pthread_condattr_t,
         clock_id: *mut clockid_t,
@@ -4214,7 +4208,7 @@ extern "C" {
     pub fn setfsuid(uid: crate::uid_t) -> c_int;
 
     // Not available now on Android
-    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t) -> c_int;
+    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: mode_t) -> c_int;
     pub fn if_nameindex() -> *mut if_nameindex;
     pub fn if_freenameindex(ptr: *mut if_nameindex);
     pub fn sync_file_range(fd: c_int, offset: off64_t, nbytes: off64_t, flags: c_uint) -> c_int;
diff --git a/src/macros.rs b/src/macros.rs
index e7dbf5611970e..abffa2afb9520 100644
--- a/src/macros.rs
+++ b/src/macros.rs
@@ -193,6 +193,7 @@ macro_rules! missing {
 
 /// Implement `Clone` and `Copy` for an enum, as well as `Debug`, `Eq`, `Hash`, and
 /// `PartialEq` if the `extra_traits` feature is enabled.
+// FIXME(#4419): Replace all uses of `e!` with `c_enum!`
 macro_rules! e {
     ($(
         $(#[$attr:meta])*
@@ -210,6 +211,48 @@ macro_rules! e {
     )*);
 }
 
+/// Represent a C enum as Rust constants and a type.
+///
+/// C enums can't soundly be mapped to Rust enums since C enums are allowed to have duplicates or
+/// unlisted values, but this is UB in Rust. This enum doesn't implement any traits, its main
+/// purpose is to calculate the correct enum values.
+///
+/// See <https://github.com/rust-lang/libc/issues/4419> for more.
+macro_rules! c_enum {
+    (
+        $(#[repr($repr:ty)])?
+        $ty_name:ident {
+            $($variant:ident $(= $value:literal)?,)+
+        }
+    ) => {
+        pub type $ty_name = c_enum!(@ty $($repr)?);
+        c_enum!(@one; $ty_name; 0; $($variant $(= $value)?,)+);
+    };
+
+    // Matcher for a single variant
+    (@one; $_ty_name:ident; $_idx:expr;) => {};
+    (
+        @one; $ty_name:ident; $default_val:expr;
+        $variant:ident $(= $value:literal)?,
+        $($tail:tt)*
+    ) => {
+        pub const $variant: $ty_name = {
+            #[allow(unused_variables)]
+            let r = $default_val;
+            $(let r = $value;)?
+            r
+        };
+
+        // The next value is always one more than the previous value, unless
+        // set explicitly.
+        c_enum!(@one; $ty_name; $variant + 1; $($tail)*);
+    };
+
+    // Use a specific type if provided, otherwise default to `c_uint`
+    (@ty $repr:ty) => { $repr };
+    (@ty) => { $crate::c_uint };
+}
+
 // This is a pretty horrible hack to allow us to conditionally mark some functions as 'const',
 // without requiring users of this macro to care "libc_const_extern_fn".
 //
@@ -359,3 +402,76 @@ macro_rules! deprecated_mach {
         )*
     }
 }
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn c_enumbasic() {
+        // By default, variants get sequential values.
+        c_enum! {
+            e {
+                VAR0,
+                VAR1,
+                VAR2,
+            }
+        }
+
+        assert_eq!(VAR0, 0_u32);
+        assert_eq!(VAR1, 1_u32);
+        assert_eq!(VAR2, 2_u32);
+    }
+
+    #[test]
+    fn c_enumrepr() {
+        // By default, variants get sequential values.
+        c_enum! {
+            #[repr(u16)]
+            e {
+                VAR0,
+            }
+        }
+
+        assert_eq!(VAR0, 0_u16);
+    }
+
+    #[test]
+    fn c_enumset_value() {
+        // Setting an explicit value resets the count.
+        c_enum! {
+            e {
+                VAR2 = 2,
+                VAR3,
+                VAR4,
+            }
+        }
+
+        assert_eq!(VAR2, 2_u32);
+        assert_eq!(VAR3, 3_u32);
+        assert_eq!(VAR4, 4_u32);
+    }
+
+    #[test]
+    fn c_enummultiple_set_value() {
+        // C enums always take one more than the previous value, unless set to a specific
+        // value. Duplicates are allowed.
+        c_enum! {
+            e {
+                VAR0,
+                VAR2_0 = 2,
+                VAR3_0,
+                VAR4_0,
+                VAR2_1 = 2,
+                VAR3_1,
+                VAR4_1,
+            }
+        }
+
+        assert_eq!(VAR0, 0_u32);
+        assert_eq!(VAR2_0, 2_u32);
+        assert_eq!(VAR3_0, 3_u32);
+        assert_eq!(VAR4_0, 4_u32);
+        assert_eq!(VAR2_1, 2_u32);
+        assert_eq!(VAR3_1, 3_u32);
+        assert_eq!(VAR4_1, 4_u32);
+    }
+}
diff --git a/src/unix/aix/mod.rs b/src/unix/aix/mod.rs
index a43fcd104748c..8cca9bb3c20d6 100644
--- a/src/unix/aix/mod.rs
+++ b/src/unix/aix/mod.rs
@@ -2881,9 +2881,8 @@ extern "C" {
     ) -> *mut c_void;
     pub fn memset_s(s: *mut c_void, smax: size_t, c: c_int, n: size_t) -> c_int;
     pub fn mincore(addr: *const c_void, len: size_t, vec: *mut c_char) -> c_int;
-    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t) -> c_int;
-    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t, dev: dev_t)
-        -> c_int;
+    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: mode_t) -> c_int;
+    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: mode_t, dev: dev_t) -> c_int;
     pub fn mount(device: *const c_char, path: *const c_char, flags: c_int) -> c_int;
     pub fn mprotect(addr: *mut c_void, len: size_t, prot: c_int) -> c_int;
     pub fn mq_close(mqd: crate::mqd_t) -> c_int;
@@ -2977,7 +2976,7 @@ extern "C" {
         fd: c_int,
         path: *const c_char,
         oflag: c_int,
-        mode: crate::mode_t,
+        mode: mode_t,
     ) -> c_int;
     pub fn posix_spawn_file_actions_destroy(actions: *mut posix_spawn_file_actions_t) -> c_int;
     pub fn posix_spawn_file_actions_init(actions: *mut posix_spawn_file_actions_t) -> c_int;
@@ -3142,7 +3141,7 @@ extern "C" {
     pub fn shmdt(shmaddr: *const c_void) -> c_int;
     pub fn shmctl(shmid: c_int, cmd: c_int, buf: *mut crate::shmid_ds) -> c_int;
     pub fn shmget(key: key_t, size: size_t, shmflg: c_int) -> c_int;
-    pub fn shm_open(name: *const c_char, oflag: c_int, mode: crate::mode_t) -> c_int;
+    pub fn shm_open(name: *const c_char, oflag: c_int, mode: mode_t) -> c_int;
     pub fn shm_unlink(name: *const c_char) -> c_int;
     pub fn splice(socket1: c_int, socket2: c_int, flags: c_int) -> c_int;
     pub fn srand(seed: c_uint);
diff --git a/src/unix/bsd/apple/mod.rs b/src/unix/bsd/apple/mod.rs
index 56169a5cf73d8..9c76ed7c01cc5 100644
--- a/src/unix/bsd/apple/mod.rs
+++ b/src/unix/bsd/apple/mod.rs
@@ -775,7 +775,7 @@ s! {
         pub gid: crate::gid_t,
         pub cuid: crate::uid_t,
         pub cgid: crate::gid_t,
-        pub mode: crate::mode_t,
+        pub mode: mode_t,
         pub _seq: c_ushort,
         pub _key: crate::key_t,
     }
@@ -6341,7 +6341,7 @@ extern "C" {
         fd: c_int,
         path: *const c_char,
         oflag: c_int,
-        mode: crate::mode_t,
+        mode: mode_t,
     ) -> c_int;
     pub fn posix_spawn_file_actions_addclose(
         actions: *mut posix_spawn_file_actions_t,
@@ -6660,9 +6660,8 @@ extern "C" {
     pub fn dirname(path: *mut c_char) -> *mut c_char;
     pub fn basename(path: *mut c_char) -> *mut c_char;
 
-    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t) -> c_int;
-    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t, dev: dev_t)
-        -> c_int;
+    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: mode_t) -> c_int;
+    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: mode_t, dev: dev_t) -> c_int;
     pub fn freadlink(fd: c_int, buf: *mut c_char, size: size_t) -> c_int;
     pub fn execvP(
         file: *const c_char,
diff --git a/src/unix/bsd/freebsdlike/mod.rs b/src/unix/bsd/freebsdlike/mod.rs
index 5ed09c78f1891..197873cd17795 100644
--- a/src/unix/bsd/freebsdlike/mod.rs
+++ b/src/unix/bsd/freebsdlike/mod.rs
@@ -378,7 +378,7 @@ s! {
         pub cgid: crate::gid_t,
         pub uid: crate::uid_t,
         pub gid: crate::gid_t,
-        pub mode: crate::mode_t,
+        pub mode: mode_t,
         pub seq: c_ushort,
         pub key: crate::key_t,
     }
@@ -1602,13 +1602,12 @@ extern "C" {
     pub fn lchflags(path: *const c_char, flags: c_ulong) -> c_int;
     pub fn lutimes(file: *const c_char, times: *const crate::timeval) -> c_int;
     pub fn memrchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void;
-    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t) -> c_int;
+    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: mode_t) -> c_int;
     #[cfg_attr(
         all(target_os = "freebsd", any(freebsd11, freebsd10)),
         link_name = "mknodat@FBSD_1.1"
     )]
-    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t, dev: dev_t)
-        -> c_int;
+    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: mode_t, dev: dev_t) -> c_int;
     pub fn malloc_usable_size(ptr: *const c_void) -> size_t;
     pub fn mincore(addr: *const c_void, len: size_t, vec: *mut c_char) -> c_int;
     pub fn newlocale(mask: c_int, locale: *const c_char, base: crate::locale_t) -> crate::locale_t;
@@ -1730,7 +1729,7 @@ extern "C" {
     pub fn setresuid(ruid: crate::uid_t, euid: crate::uid_t, suid: crate::uid_t) -> c_int;
     pub fn settimeofday(tv: *const crate::timeval, tz: *const crate::timezone) -> c_int;
     pub fn setutxent();
-    pub fn shm_open(name: *const c_char, oflag: c_int, mode: crate::mode_t) -> c_int;
+    pub fn shm_open(name: *const c_char, oflag: c_int, mode: mode_t) -> c_int;
     pub fn sigtimedwait(
         set: *const sigset_t,
         info: *mut siginfo_t,
@@ -1872,7 +1871,7 @@ extern "C" {
         fd: c_int,
         path: *const c_char,
         oflag: c_int,
-        mode: crate::mode_t,
+        mode: mode_t,
     ) -> c_int;
     pub fn posix_spawn_file_actions_addclose(
         actions: *mut posix_spawn_file_actions_t,
diff --git a/src/unix/bsd/netbsdlike/mod.rs b/src/unix/bsd/netbsdlike/mod.rs
index dfd58d75b74ae..682b8b7e9fe74 100644
--- a/src/unix/bsd/netbsdlike/mod.rs
+++ b/src/unix/bsd/netbsdlike/mod.rs
@@ -78,7 +78,7 @@ s! {
         pub cgid: crate::gid_t,
         pub uid: crate::uid_t,
         pub gid: crate::gid_t,
-        pub mode: crate::mode_t,
+        pub mode: mode_t,
         #[cfg(target_os = "openbsd")]
         pub seq: c_ushort,
         #[cfg(target_os = "netbsd")]
@@ -689,7 +689,7 @@ extern "C" {
     #[cfg_attr(target_os = "netbsd", link_name = "__clock_settime50")]
     pub fn clock_settime(clk_id: crate::clockid_t, tp: *const crate::timespec) -> c_int;
     pub fn __errno() -> *mut c_int;
-    pub fn shm_open(name: *const c_char, oflag: c_int, mode: crate::mode_t) -> c_int;
+    pub fn shm_open(name: *const c_char, oflag: c_int, mode: mode_t) -> c_int;
     pub fn memrchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void;
     pub fn mkostemp(template: *mut c_char, flags: c_int) -> c_int;
     pub fn mkostemps(template: *mut c_char, suffixlen: c_int, flags: c_int) -> c_int;
@@ -707,9 +707,8 @@ extern "C" {
     pub fn getpriority(which: c_int, who: crate::id_t) -> c_int;
     pub fn setpriority(which: c_int, who: crate::id_t, prio: c_int) -> c_int;
 
-    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t, dev: dev_t)
-        -> c_int;
-    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t) -> c_int;
+    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: mode_t, dev: dev_t) -> c_int;
+    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: mode_t) -> c_int;
     pub fn sem_timedwait(sem: *mut sem_t, abstime: *const crate::timespec) -> c_int;
     pub fn sem_getvalue(sem: *mut sem_t, sval: *mut c_int) -> c_int;
     pub fn pthread_condattr_setclock(
@@ -830,7 +829,7 @@ extern "C" {
         fd: c_int,
         path: *const c_char,
         oflag: c_int,
-        mode: crate::mode_t,
+        mode: mode_t,
     ) -> c_int;
     pub fn posix_spawn_file_actions_addclose(
         actions: *mut posix_spawn_file_actions_t,
diff --git a/src/unix/haiku/mod.rs b/src/unix/haiku/mod.rs
index 76e44cc796f1d..ef48fa6f9be4b 100644
--- a/src/unix/haiku/mod.rs
+++ b/src/unix/haiku/mod.rs
@@ -420,7 +420,7 @@ s! {
         pub gid: crate::gid_t,
         pub cuid: crate::uid_t,
         pub cgid: crate::gid_t,
-        pub mode: crate::mode_t,
+        pub mode: mode_t,
     }
 
     pub struct sembuf {
@@ -774,27 +774,27 @@ pub const O_NOFOLLOW: c_int = 0x00080000;
 pub const O_NOCACHE: c_int = 0x00100000;
 pub const O_DIRECTORY: c_int = 0x00200000;
 
-pub const S_IFIFO: crate::mode_t = 0o1_0000;
-pub const S_IFCHR: crate::mode_t = 0o2_0000;
-pub const S_IFBLK: crate::mode_t = 0o6_0000;
-pub const S_IFDIR: crate::mode_t = 0o4_0000;
-pub const S_IFREG: crate::mode_t = 0o10_0000;
-pub const S_IFLNK: crate::mode_t = 0o12_0000;
-pub const S_IFSOCK: crate::mode_t = 0o14_0000;
-pub const S_IFMT: crate::mode_t = 0o17_0000;
-
-pub const S_IRWXU: crate::mode_t = 0o0700;
-pub const S_IRUSR: crate::mode_t = 0o0400;
-pub const S_IWUSR: crate::mode_t = 0o0200;
-pub const S_IXUSR: crate::mode_t = 0o0100;
-pub const S_IRWXG: crate::mode_t = 0o0070;
-pub const S_IRGRP: crate::mode_t = 0o0040;
-pub const S_IWGRP: crate::mode_t = 0o0020;
-pub const S_IXGRP: crate::mode_t = 0o0010;
-pub const S_IRWXO: crate::mode_t = 0o0007;
-pub const S_IROTH: crate::mode_t = 0o0004;
-pub const S_IWOTH: crate::mode_t = 0o0002;
-pub const S_IXOTH: crate::mode_t = 0o0001;
+pub const S_IFIFO: mode_t = 0o1_0000;
+pub const S_IFCHR: mode_t = 0o2_0000;
+pub const S_IFBLK: mode_t = 0o6_0000;
+pub const S_IFDIR: mode_t = 0o4_0000;
+pub const S_IFREG: mode_t = 0o10_0000;
+pub const S_IFLNK: mode_t = 0o12_0000;
+pub const S_IFSOCK: mode_t = 0o14_0000;
+pub const S_IFMT: mode_t = 0o17_0000;
+
+pub const S_IRWXU: mode_t = 0o0700;
+pub const S_IRUSR: mode_t = 0o0400;
+pub const S_IWUSR: mode_t = 0o0200;
+pub const S_IXUSR: mode_t = 0o0100;
+pub const S_IRWXG: mode_t = 0o0070;
+pub const S_IRGRP: mode_t = 0o0040;
+pub const S_IWGRP: mode_t = 0o0020;
+pub const S_IXGRP: mode_t = 0o0010;
+pub const S_IRWXO: mode_t = 0o0007;
+pub const S_IROTH: mode_t = 0o0004;
+pub const S_IWOTH: mode_t = 0o0002;
+pub const S_IXOTH: mode_t = 0o0001;
 
 pub const F_OK: c_int = 0;
 pub const R_OK: c_int = 4;
@@ -1733,9 +1733,8 @@ extern "C" {
         bufferSize: size_t,
         res: *mut *mut spwd,
     ) -> c_int;
-    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t) -> c_int;
-    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t, dev: dev_t)
-        -> c_int;
+    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: mode_t) -> c_int;
+    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: mode_t, dev: dev_t) -> c_int;
     pub fn sem_destroy(sem: *mut sem_t) -> c_int;
     pub fn sem_init(sem: *mut sem_t, pshared: c_int, value: c_uint) -> c_int;
 
@@ -1813,7 +1812,7 @@ extern "C" {
     pub fn posix_fadvise(fd: c_int, offset: off_t, len: off_t, advice: c_int) -> c_int;
     pub fn posix_fallocate(fd: c_int, offset: off_t, len: off_t) -> c_int;
 
-    pub fn shm_open(name: *const c_char, oflag: c_int, mode: crate::mode_t) -> c_int;
+    pub fn shm_open(name: *const c_char, oflag: c_int, mode: mode_t) -> c_int;
     pub fn shm_unlink(name: *const c_char) -> c_int;
 
     pub fn seekdir(dirp: *mut crate::DIR, loc: c_long);
@@ -2032,7 +2031,7 @@ extern "C" {
         fildes: c_int,
         path: *const c_char,
         oflag: c_int,
-        mode: crate::mode_t,
+        mode: mode_t,
     ) -> c_int;
     pub fn posix_spawn_file_actions_addclose(
         file_actions: *mut posix_spawn_file_actions_t,
diff --git a/src/unix/hurd/mod.rs b/src/unix/hurd/mod.rs
index 8703f4d37a66d..961710b5ae76d 100644
--- a/src/unix/hurd/mod.rs
+++ b/src/unix/hurd/mod.rs
@@ -2150,35 +2150,35 @@ pub const SF_NOUNLINK: c_uint = 1048576;
 pub const SF_SNAPSHOT: c_uint = 2097152;
 pub const UTIME_NOW: c_long = -1;
 pub const UTIME_OMIT: c_long = -2;
-pub const S_IFMT: crate::mode_t = 0o17_0000;
-pub const S_IFDIR: crate::mode_t = 0o4_0000;
-pub const S_IFCHR: crate::mode_t = 0o2_0000;
-pub const S_IFBLK: crate::mode_t = 0o6_0000;
-pub const S_IFREG: crate::mode_t = 0o10_0000;
-pub const S_IFIFO: crate::mode_t = 0o1_0000;
-pub const S_IFLNK: crate::mode_t = 0o12_0000;
-pub const S_IFSOCK: crate::mode_t = 0o14_0000;
-pub const S_ISUID: crate::mode_t = 0o4000;
-pub const S_ISGID: crate::mode_t = 0o2000;
-pub const S_ISVTX: crate::mode_t = 0o1000;
-pub const S_IRUSR: crate::mode_t = 0o0400;
-pub const S_IWUSR: crate::mode_t = 0o0200;
-pub const S_IXUSR: crate::mode_t = 0o0100;
-pub const S_IRWXU: crate::mode_t = 0o0700;
-pub const S_IREAD: crate::mode_t = 0o0400;
-pub const S_IWRITE: crate::mode_t = 0o0200;
-pub const S_IEXEC: crate::mode_t = 0o0100;
-pub const S_IRGRP: crate::mode_t = 0o0040;
-pub const S_IWGRP: crate::mode_t = 0o0020;
-pub const S_IXGRP: crate::mode_t = 0o0010;
-pub const S_IRWXG: crate::mode_t = 0o0070;
-pub const S_IROTH: crate::mode_t = 0o0004;
-pub const S_IWOTH: crate::mode_t = 0o0002;
-pub const S_IXOTH: crate::mode_t = 0o0001;
-pub const S_IRWXO: crate::mode_t = 0o0007;
-pub const ACCESSPERMS: crate::mode_t = 511;
-pub const ALLPERMS: crate::mode_t = 4095;
-pub const DEFFILEMODE: crate::mode_t = 438;
+pub const S_IFMT: mode_t = 0o17_0000;
+pub const S_IFDIR: mode_t = 0o4_0000;
+pub const S_IFCHR: mode_t = 0o2_0000;
+pub const S_IFBLK: mode_t = 0o6_0000;
+pub const S_IFREG: mode_t = 0o10_0000;
+pub const S_IFIFO: mode_t = 0o1_0000;
+pub const S_IFLNK: mode_t = 0o12_0000;
+pub const S_IFSOCK: mode_t = 0o14_0000;
+pub const S_ISUID: mode_t = 0o4000;
+pub const S_ISGID: mode_t = 0o2000;
+pub const S_ISVTX: mode_t = 0o1000;
+pub const S_IRUSR: mode_t = 0o0400;
+pub const S_IWUSR: mode_t = 0o0200;
+pub const S_IXUSR: mode_t = 0o0100;
+pub const S_IRWXU: mode_t = 0o0700;
+pub const S_IREAD: mode_t = 0o0400;
+pub const S_IWRITE: mode_t = 0o0200;
+pub const S_IEXEC: mode_t = 0o0100;
+pub const S_IRGRP: mode_t = 0o0040;
+pub const S_IWGRP: mode_t = 0o0020;
+pub const S_IXGRP: mode_t = 0o0010;
+pub const S_IRWXG: mode_t = 0o0070;
+pub const S_IROTH: mode_t = 0o0004;
+pub const S_IWOTH: mode_t = 0o0002;
+pub const S_IXOTH: mode_t = 0o0001;
+pub const S_IRWXO: mode_t = 0o0007;
+pub const ACCESSPERMS: mode_t = 511;
+pub const ALLPERMS: mode_t = 4095;
+pub const DEFFILEMODE: mode_t = 438;
 pub const S_BLKSIZE: usize = 512;
 pub const STATX_TYPE: c_uint = 1;
 pub const STATX_MODE: c_uint = 2;
@@ -3574,8 +3574,7 @@ extern "C" {
 
     pub fn mkfifoat(__fd: c_int, __path: *const c_char, __mode: __mode_t) -> c_int;
 
-    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t, dev: dev_t)
-        -> c_int;
+    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: mode_t, dev: dev_t) -> c_int;
 
     pub fn __libc_current_sigrtmin() -> c_int;
 
@@ -4248,7 +4247,7 @@ extern "C" {
         fd: c_int,
         path: *const c_char,
         oflag: c_int,
-        mode: crate::mode_t,
+        mode: mode_t,
     ) -> c_int;
     pub fn posix_spawn_file_actions_addclose(
         actions: *mut posix_spawn_file_actions_t,
diff --git a/src/unix/linux_like/android/mod.rs b/src/unix/linux_like/android/mod.rs
index c5875f2956df7..3d24d5d8fb73f 100644
--- a/src/unix/linux_like/android/mod.rs
+++ b/src/unix/linux_like/android/mod.rs
@@ -2709,7 +2709,7 @@ pub const TUNSETTXFILTER: c_int = _IOW::<c_int>(T_TYPE, 209);
 pub const TUNGETIFF: c_int = _IOR::<c_int>(T_TYPE, 210);
 pub const TUNGETSNDBUF: c_int = _IOR::<c_int>(T_TYPE, 211);
 pub const TUNSETSNDBUF: c_int = _IOW::<c_int>(T_TYPE, 212);
-pub const TUNATTACHFILTER: c_int =  _IOW::<sock_fprog>(T_TYPE, 213);
+pub const TUNATTACHFILTER: c_int = _IOW::<sock_fprog>(T_TYPE, 213);
 pub const TUNDETACHFILTER: c_int = _IOW::<sock_fprog>(T_TYPE, 214);
 pub const TUNGETVNETHDRSZ: c_int = _IOR::<c_int>(T_TYPE, 215);
 pub const TUNSETVNETHDRSZ: c_int = _IOW::<c_int>(T_TYPE, 216);
@@ -4307,15 +4307,20 @@ pub const fn _IO(ty: u32, nr: u32) -> c_int {
 
 /// Build an ioctl number for an read-only ioctl.
 pub const fn _IOR<T>(ty: u32, nr: u32) -> c_int {
-    super::_IOC(super::_IOC_READ, ty, nr, mem::size_of::<T>())  as c_int
+    super::_IOC(super::_IOC_READ, ty, nr, mem::size_of::<T>()) as c_int
 }
 
 /// Build an ioctl number for an write-only ioctl.
 pub const fn _IOW<T>(ty: u32, nr: u32) -> c_int {
-    super::_IOC(super::_IOC_WRITE, ty, nr, mem::size_of::<T>())  as c_int
+    super::_IOC(super::_IOC_WRITE, ty, nr, mem::size_of::<T>()) as c_int
 }
 
 /// Build an ioctl number for a read-write ioctl.
 pub const fn _IOWR<T>(ty: u32, nr: u32) -> c_int {
-    super::_IOC(super::_IOC_READ | super::_IOC_WRITE, ty, nr, mem::size_of::<T>())  as c_int
+    super::_IOC(
+        super::_IOC_READ | super::_IOC_WRITE,
+        ty,
+        nr,
+        mem::size_of::<T>(),
+    ) as c_int
 }
diff --git a/src/unix/linux_like/emscripten/mod.rs b/src/unix/linux_like/emscripten/mod.rs
index 985b3c0c5e187..462a944b1e2b1 100644
--- a/src/unix/linux_like/emscripten/mod.rs
+++ b/src/unix/linux_like/emscripten/mod.rs
@@ -171,7 +171,7 @@ s! {
         pub gid: crate::gid_t,
         pub cuid: crate::uid_t,
         pub cgid: crate::gid_t,
-        pub mode: crate::mode_t,
+        pub mode: mode_t,
         pub __seq: c_int,
         __unused1: c_long,
         __unused2: c_long,
@@ -229,7 +229,7 @@ s! {
         __st_dev_padding: c_int,
         #[cfg(emscripten_old_stat_abi)]
         __st_ino_truncated: c_long,
-        pub st_mode: crate::mode_t,
+        pub st_mode: mode_t,
         pub st_nlink: crate::nlink_t,
         pub st_uid: crate::uid_t,
         pub st_gid: crate::gid_t,
@@ -1530,7 +1530,7 @@ extern "C" {
     ) -> c_int;
     pub fn getloadavg(loadavg: *mut c_double, nelem: c_int) -> c_int;
 
-    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t) -> c_int;
+    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: mode_t) -> c_int;
     pub fn if_nameindex() -> *mut if_nameindex;
     pub fn if_freenameindex(ptr: *mut if_nameindex);
 
diff --git a/src/unix/linux_like/linux/gnu/b64/s390x.rs b/src/unix/linux_like/linux/gnu/b64/s390x.rs
index c08e12108b918..18684de36dc52 100644
--- a/src/unix/linux_like/linux/gnu/b64/s390x.rs
+++ b/src/unix/linux_like/linux/gnu/b64/s390x.rs
@@ -235,7 +235,7 @@ cfg_if! {
 
         impl hash::Hash for fpreg_t {
             fn hash<H: hash::Hasher>(&self, state: &mut H) {
-                let d: u64 = unsafe { mem::transmute(self.d) };
+                let d: u64 = self.d.to_bits();
                 d.hash(state);
             }
         }
diff --git a/src/unix/linux_like/linux/gnu/mod.rs b/src/unix/linux_like/linux/gnu/mod.rs
index 823f495084bda..84d7c24742c37 100644
--- a/src/unix/linux_like/linux/gnu/mod.rs
+++ b/src/unix/linux_like/linux/gnu/mod.rs
@@ -751,7 +751,6 @@ pub const RTLD_DI_TLS_MODID: c_int = 9;
 pub const RTLD_DI_TLS_DATA: c_int = 10;
 
 pub const SOCK_NONBLOCK: c_int = O_NONBLOCK;
-pub const PIDFD_NONBLOCK: c_uint = O_NONBLOCK as c_uint;
 
 pub const SOL_RXRPC: c_int = 272;
 pub const SOL_PPPOL2TP: c_int = 273;
diff --git a/src/unix/linux_like/linux/mod.rs b/src/unix/linux_like/linux/mod.rs
index 5be701beeaabc..c0989d2d74c7d 100644
--- a/src/unix/linux_like/linux/mod.rs
+++ b/src/unix/linux_like/linux/mod.rs
@@ -93,6 +93,16 @@ e! {
     }
 }
 
+c_enum! {
+    pid_type {
+        PIDTYPE_PID,
+        PIDTYPE_TGID,
+        PIDTYPE_PGID,
+        PIDTYPE_SID,
+        PIDTYPE_MAX,
+    }
+}
+
 s! {
     pub struct glob_t {
         pub gl_pathc: size_t,
@@ -1366,6 +1376,25 @@ s! {
         pub userns_fd: crate::__u64,
     }
 
+    // linux/pidfd.h
+
+    pub struct pidfd_info {
+        mask: crate::__u64,
+        cgroupid: crate::__u64,
+        pid: crate::__u32,
+        tgid: crate::__u32,
+        ppid: crate::__u32,
+        ruid: crate::__u32,
+        rgid: crate::__u32,
+        euid: crate::__u32,
+        egid: crate::__u32,
+        suid: crate::__u32,
+        sgid: crate::__u32,
+        fsuid: crate::__u32,
+        fsgid: crate::__u32,
+        exit_code: crate::__s32,
+    }
+
     // linux/uio.h
 
     pub struct dmabuf_cmsg {
@@ -3182,6 +3211,35 @@ pub const MREMAP_MAYMOVE: c_int = 1;
 pub const MREMAP_FIXED: c_int = 2;
 pub const MREMAP_DONTUNMAP: c_int = 4;
 
+// linux/pidfd.h
+pub const PIDFD_NONBLOCK: c_uint = O_NONBLOCK as c_uint;
+pub const PIDFD_THREAD: c_uint = O_EXCL as c_uint;
+
+pub const PIDFD_SIGNAL_THREAD: c_uint = 1 << 0;
+pub const PIDFD_SIGNAL_THREAD_GROUP: c_uint = 1 << 1;
+pub const PIDFD_SIGNAL_PROCESS_GROUP: c_uint = 1 << 2;
+
+pub const PIDFD_INFO_PID: c_uint = 1 << 0;
+pub const PIDFD_INFO_CREDS: c_uint = 1 << 1;
+pub const PIDFD_INFO_CGROUPID: c_uint = 1 << 2;
+pub const PIDFD_INFO_EXIT: c_uint = 1 << 3;
+
+pub const PIDFD_INFO_SIZE_VER0: c_uint = 64;
+
+const PIDFS_IOCTL_MAGIC: c_uint = 0xFF;
+pub const PIDFD_GET_CGROUP_NAMESPACE: c_uint = _IO(PIDFS_IOCTL_MAGIC, 1);
+pub const PIDFD_GET_IPC_NAMESPACE: c_uint = _IO(PIDFS_IOCTL_MAGIC, 2);
+pub const PIDFD_GET_MNT_NAMESPACE: c_uint = _IO(PIDFS_IOCTL_MAGIC, 3);
+pub const PIDFD_GET_NET_NAMESPACE: c_uint = _IO(PIDFS_IOCTL_MAGIC, 4);
+pub const PIDFD_GET_PID_NAMESPACE: c_uint = _IO(PIDFS_IOCTL_MAGIC, 5);
+pub const PIDFD_GET_PID_FOR_CHILDREN_NAMESPACE: c_uint = _IO(PIDFS_IOCTL_MAGIC, 6);
+pub const PIDFD_GET_TIME_NAMESPACE: c_uint = _IO(PIDFS_IOCTL_MAGIC, 7);
+pub const PIDFD_GET_TIME_FOR_CHILDREN_NAMESPACE: c_uint = _IO(PIDFS_IOCTL_MAGIC, 8);
+pub const PIDFD_GET_USER_NAMESPACE: c_uint = _IO(PIDFS_IOCTL_MAGIC, 9);
+pub const PIDFD_GET_UTS_NAMESPACE: c_uint = _IO(PIDFS_IOCTL_MAGIC, 10);
+pub const PIDFD_GET_INFO: c_uint = _IOWR::<pidfd_info>(PIDFS_IOCTL_MAGIC, 11);
+
+// linux/prctl.h
 pub const PR_SET_PDEATHSIG: c_int = 1;
 pub const PR_GET_PDEATHSIG: c_int = 2;
 
@@ -3284,6 +3342,11 @@ pub const PR_GET_CHILD_SUBREAPER: c_int = 37;
 pub const PR_SET_NO_NEW_PRIVS: c_int = 38;
 pub const PR_GET_NO_NEW_PRIVS: c_int = 39;
 
+pub const PR_SET_MDWE: c_int = 65;
+pub const PR_GET_MDWE: c_int = 66;
+pub const PR_MDWE_REFUSE_EXEC_GAIN: c_uint = 1 << 0;
+pub const PR_MDWE_NO_INHERIT: c_uint = 1 << 1;
+
 pub const PR_GET_TID_ADDRESS: c_int = 40;
 
 pub const PR_SET_THP_DISABLE: c_int = 41;
@@ -3830,6 +3893,7 @@ pub const PACKET_LOSS: c_int = 14;
 pub const PACKET_TIMESTAMP: c_int = 17;
 pub const PACKET_FANOUT: c_int = 18;
 pub const PACKET_QDISC_BYPASS: c_int = 20;
+pub const PACKET_IGNORE_OUTGOING: c_int = 23;
 
 pub const PACKET_FANOUT_HASH: c_uint = 0;
 pub const PACKET_FANOUT_LB: c_uint = 1;
@@ -6544,7 +6608,7 @@ extern "C" {
     pub fn setfsuid(uid: crate::uid_t) -> c_int;
 
     // Not available now on Android
-    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t) -> c_int;
+    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: mode_t) -> c_int;
     pub fn if_nameindex() -> *mut if_nameindex;
     pub fn if_freenameindex(ptr: *mut if_nameindex);
     pub fn sync_file_range(fd: c_int, offset: off64_t, nbytes: off64_t, flags: c_uint) -> c_int;
@@ -6899,7 +6963,7 @@ extern "C" {
         fd: c_int,
         path: *const c_char,
         oflag: c_int,
-        mode: crate::mode_t,
+        mode: mode_t,
     ) -> c_int;
     pub fn posix_spawn_file_actions_addclose(
         actions: *mut posix_spawn_file_actions_t,
diff --git a/src/unix/linux_like/linux/musl/b64/loongarch64/mod.rs b/src/unix/linux_like/linux/musl/b64/loongarch64/mod.rs
index 36f05e10e6ea4..e96bcbb2788e4 100644
--- a/src/unix/linux_like/linux/musl/b64/loongarch64/mod.rs
+++ b/src/unix/linux_like/linux/musl/b64/loongarch64/mod.rs
@@ -65,7 +65,6 @@ s! {
         pub cgid: crate::gid_t,
         pub mode: c_uint,
         pub __seq: c_int,
-        __pad2: c_ushort,
         __unused1: c_ulong,
         __unused2: c_ulong,
     }
diff --git a/src/unix/linux_like/linux/musl/b64/s390x.rs b/src/unix/linux_like/linux/musl/b64/s390x.rs
index b992a2c4361e4..8a274f39dfb77 100644
--- a/src/unix/linux_like/linux/musl/b64/s390x.rs
+++ b/src/unix/linux_like/linux/musl/b64/s390x.rs
@@ -88,7 +88,7 @@ cfg_if! {
 
         impl hash::Hash for fpreg_t {
             fn hash<H: hash::Hasher>(&self, state: &mut H) {
-                let d: u64 = unsafe { mem::transmute(self.d) };
+                let d: u64 = self.d.to_bits();
                 d.hash(state);
             }
         }
diff --git a/src/unix/linux_like/linux/musl/mod.rs b/src/unix/linux_like/linux/musl/mod.rs
index f850849b2d6ae..5d4d97fafbc8e 100644
--- a/src/unix/linux_like/linux/musl/mod.rs
+++ b/src/unix/linux_like/linux/musl/mod.rs
@@ -787,8 +787,6 @@ pub const EFD_NONBLOCK: c_int = crate::O_NONBLOCK;
 
 pub const SFD_NONBLOCK: c_int = crate::O_NONBLOCK;
 
-pub const PIDFD_NONBLOCK: c_uint = O_NONBLOCK as c_uint;
-
 pub const TCSANOW: c_int = 0;
 pub const TCSADRAIN: c_int = 1;
 pub const TCSAFLUSH: c_int = 2;
diff --git a/src/unix/linux_like/linux/uclibc/arm/mod.rs b/src/unix/linux_like/linux/uclibc/arm/mod.rs
index 634161ed622ca..7a517f4974694 100644
--- a/src/unix/linux_like/linux/uclibc/arm/mod.rs
+++ b/src/unix/linux_like/linux/uclibc/arm/mod.rs
@@ -475,7 +475,6 @@ pub const POLLWRBAND: c_short = 0x200;
 pub const POLLWRNORM: c_short = 0x100;
 pub const PTHREAD_STACK_MIN: size_t = 16384;
 pub const RTLD_GLOBAL: c_int = 0x00100;
-pub const PIDFD_NONBLOCK: c_int = 0x800;
 
 // These are typed unsigned to match sigaction
 pub const SA_NOCLDSTOP: c_ulong = 0x1;
diff --git a/src/unix/linux_like/linux/uclibc/mips/mod.rs b/src/unix/linux_like/linux/uclibc/mips/mod.rs
index f1934c396773a..0ad572a95f888 100644
--- a/src/unix/linux_like/linux/uclibc/mips/mod.rs
+++ b/src/unix/linux_like/linux/uclibc/mips/mod.rs
@@ -57,7 +57,6 @@ pub const O_LARGEFILE: c_int = 0x2000;
 pub const O_NDELAY: c_int = 0x80;
 
 pub const SOCK_NONBLOCK: c_int = 128;
-pub const PIDFD_NONBLOCK: c_int = 128;
 
 pub const EDEADLK: c_int = 45;
 pub const ENAMETOOLONG: c_int = 78;
diff --git a/src/unix/linux_like/linux/uclibc/x86_64/mod.rs b/src/unix/linux_like/linux/uclibc/x86_64/mod.rs
index 3a4ee0dee31c2..4a6c19fc97da3 100644
--- a/src/unix/linux_like/linux/uclibc/x86_64/mod.rs
+++ b/src/unix/linux_like/linux/uclibc/x86_64/mod.rs
@@ -342,7 +342,6 @@ pub const __SIZEOF_PTHREAD_RWLOCK_T: usize = 56;
 pub const __SIZEOF_PTHREAD_RWLOCKATTR_T: usize = 8;
 pub const __SIZEOF_PTHREAD_BARRIER_T: usize = 32;
 pub const __SIZEOF_PTHREAD_BARRIERATTR_T: usize = 4;
-pub const PIDFD_NONBLOCK: c_int = 0o4000;
 
 cfg_if! {
     if #[cfg(target_os = "l4re")] {
diff --git a/src/unix/linux_like/mod.rs b/src/unix/linux_like/mod.rs
index 64481a673bd39..9c7766a1407d1 100644
--- a/src/unix/linux_like/mod.rs
+++ b/src/unix/linux_like/mod.rs
@@ -545,26 +545,26 @@ pub const O_RDWR: c_int = 2;
 
 pub const SOCK_CLOEXEC: c_int = O_CLOEXEC;
 
-pub const S_IFIFO: crate::mode_t = 0o1_0000;
-pub const S_IFCHR: crate::mode_t = 0o2_0000;
-pub const S_IFBLK: crate::mode_t = 0o6_0000;
-pub const S_IFDIR: crate::mode_t = 0o4_0000;
-pub const S_IFREG: crate::mode_t = 0o10_0000;
-pub const S_IFLNK: crate::mode_t = 0o12_0000;
-pub const S_IFSOCK: crate::mode_t = 0o14_0000;
-pub const S_IFMT: crate::mode_t = 0o17_0000;
-pub const S_IRWXU: crate::mode_t = 0o0700;
-pub const S_IXUSR: crate::mode_t = 0o0100;
-pub const S_IWUSR: crate::mode_t = 0o0200;
-pub const S_IRUSR: crate::mode_t = 0o0400;
-pub const S_IRWXG: crate::mode_t = 0o0070;
-pub const S_IXGRP: crate::mode_t = 0o0010;
-pub const S_IWGRP: crate::mode_t = 0o0020;
-pub const S_IRGRP: crate::mode_t = 0o0040;
-pub const S_IRWXO: crate::mode_t = 0o0007;
-pub const S_IXOTH: crate::mode_t = 0o0001;
-pub const S_IWOTH: crate::mode_t = 0o0002;
-pub const S_IROTH: crate::mode_t = 0o0004;
+pub const S_IFIFO: mode_t = 0o1_0000;
+pub const S_IFCHR: mode_t = 0o2_0000;
+pub const S_IFBLK: mode_t = 0o6_0000;
+pub const S_IFDIR: mode_t = 0o4_0000;
+pub const S_IFREG: mode_t = 0o10_0000;
+pub const S_IFLNK: mode_t = 0o12_0000;
+pub const S_IFSOCK: mode_t = 0o14_0000;
+pub const S_IFMT: mode_t = 0o17_0000;
+pub const S_IRWXU: mode_t = 0o0700;
+pub const S_IXUSR: mode_t = 0o0100;
+pub const S_IWUSR: mode_t = 0o0200;
+pub const S_IRUSR: mode_t = 0o0400;
+pub const S_IRWXG: mode_t = 0o0070;
+pub const S_IXGRP: mode_t = 0o0010;
+pub const S_IWGRP: mode_t = 0o0020;
+pub const S_IRGRP: mode_t = 0o0040;
+pub const S_IRWXO: mode_t = 0o0007;
+pub const S_IXOTH: mode_t = 0o0001;
+pub const S_IWOTH: mode_t = 0o0002;
+pub const S_IROTH: mode_t = 0o0004;
 pub const F_OK: c_int = 0;
 pub const R_OK: c_int = 4;
 pub const W_OK: c_int = 2;
@@ -1877,8 +1877,7 @@ extern "C" {
     pub fn freelocale(loc: crate::locale_t);
     pub fn newlocale(mask: c_int, locale: *const c_char, base: crate::locale_t) -> crate::locale_t;
     pub fn uselocale(loc: crate::locale_t) -> crate::locale_t;
-    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t, dev: dev_t)
-        -> c_int;
+    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: mode_t, dev: dev_t) -> c_int;
     pub fn pthread_condattr_getclock(
         attr: *const pthread_condattr_t,
         clock_id: *mut clockid_t,
diff --git a/src/unix/mod.rs b/src/unix/mod.rs
index 433eeec950965..4fc2afedfc095 100644
--- a/src/unix/mod.rs
+++ b/src/unix/mod.rs
@@ -245,9 +245,9 @@ cfg_if! {
 }
 pub const SIGIOT: c_int = 6;
 
-pub const S_ISUID: crate::mode_t = 0o4000;
-pub const S_ISGID: crate::mode_t = 0o2000;
-pub const S_ISVTX: crate::mode_t = 0o1000;
+pub const S_ISUID: mode_t = 0o4000;
+pub const S_ISGID: mode_t = 0o2000;
+pub const S_ISVTX: mode_t = 0o1000;
 
 cfg_if! {
     if #[cfg(not(any(
@@ -939,12 +939,7 @@ extern "C" {
     )]
     pub fn rewinddir(dirp: *mut crate::DIR);
 
-    pub fn fchmodat(
-        dirfd: c_int,
-        pathname: *const c_char,
-        mode: crate::mode_t,
-        flags: c_int,
-    ) -> c_int;
+    pub fn fchmodat(dirfd: c_int, pathname: *const c_char, mode: mode_t, flags: c_int) -> c_int;
     pub fn fchown(fd: c_int, owner: crate::uid_t, group: crate::gid_t) -> c_int;
     pub fn fchownat(
         dirfd: c_int,
@@ -1421,7 +1416,7 @@ extern "C" {
         all(target_os = "freebsd", any(freebsd11, freebsd10)),
         link_name = "mknod@FBSD_1.0"
     )]
-    pub fn mknod(pathname: *const c_char, mode: crate::mode_t, dev: crate::dev_t) -> c_int;
+    pub fn mknod(pathname: *const c_char, mode: mode_t, dev: crate::dev_t) -> c_int;
     pub fn gethostname(name: *mut c_char, len: size_t) -> c_int;
     pub fn endservent();
     pub fn getservbyname(name: *const c_char, proto: *const c_char) -> *mut servent;
@@ -1659,7 +1654,7 @@ cfg_if! {
             )]
             pub fn pause() -> c_int;
 
-            pub fn mkdirat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t) -> c_int;
+            pub fn mkdirat(dirfd: c_int, pathname: *const c_char, mode: 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;
 
diff --git a/src/unix/newlib/mod.rs b/src/unix/newlib/mod.rs
index ae118b4719a65..d49bdb3e9e18c 100644
--- a/src/unix/newlib/mod.rs
+++ b/src/unix/newlib/mod.rs
@@ -568,28 +568,28 @@ pub const SEEK_END: c_int = 2;
 pub const FIOCLEX: c_ulong = 0x20006601;
 pub const FIONCLEX: c_ulong = 0x20006602;
 
-pub const S_BLKSIZE: crate::mode_t = 1024;
-pub const S_IREAD: crate::mode_t = 0o0400;
-pub const S_IWRITE: crate::mode_t = 0o0200;
-pub const S_IEXEC: crate::mode_t = 0o0100;
-pub const S_ENFMT: crate::mode_t = 0o2000;
-pub const S_IFMT: crate::mode_t = 0o17_0000;
-pub const S_IFDIR: crate::mode_t = 0o4_0000;
-pub const S_IFCHR: crate::mode_t = 0o2_0000;
-pub const S_IFBLK: crate::mode_t = 0o6_0000;
-pub const S_IFREG: crate::mode_t = 0o10_0000;
-pub const S_IFLNK: crate::mode_t = 0o12_0000;
-pub const S_IFSOCK: crate::mode_t = 0o14_0000;
-pub const S_IFIFO: crate::mode_t = 0o1_0000;
-pub const S_IRUSR: crate::mode_t = 0o0400;
-pub const S_IWUSR: crate::mode_t = 0o0200;
-pub const S_IXUSR: crate::mode_t = 0o0100;
-pub const S_IRGRP: crate::mode_t = 0o0040;
-pub const S_IWGRP: crate::mode_t = 0o0020;
-pub const S_IXGRP: crate::mode_t = 0o0010;
-pub const S_IROTH: crate::mode_t = 0o0004;
-pub const S_IWOTH: crate::mode_t = 0o0002;
-pub const S_IXOTH: crate::mode_t = 0o0001;
+pub const S_BLKSIZE: mode_t = 1024;
+pub const S_IREAD: mode_t = 0o0400;
+pub const S_IWRITE: mode_t = 0o0200;
+pub const S_IEXEC: mode_t = 0o0100;
+pub const S_ENFMT: mode_t = 0o2000;
+pub const S_IFMT: mode_t = 0o17_0000;
+pub const S_IFDIR: mode_t = 0o4_0000;
+pub const S_IFCHR: mode_t = 0o2_0000;
+pub const S_IFBLK: mode_t = 0o6_0000;
+pub const S_IFREG: mode_t = 0o10_0000;
+pub const S_IFLNK: mode_t = 0o12_0000;
+pub const S_IFSOCK: mode_t = 0o14_0000;
+pub const S_IFIFO: mode_t = 0o1_0000;
+pub const S_IRUSR: mode_t = 0o0400;
+pub const S_IWUSR: mode_t = 0o0200;
+pub const S_IXUSR: mode_t = 0o0100;
+pub const S_IRGRP: mode_t = 0o0040;
+pub const S_IWGRP: mode_t = 0o0020;
+pub const S_IXGRP: mode_t = 0o0010;
+pub const S_IROTH: mode_t = 0o0004;
+pub const S_IWOTH: mode_t = 0o0002;
+pub const S_IXOTH: mode_t = 0o0001;
 
 pub const SOL_TCP: c_int = 6;
 
diff --git a/src/unix/nto/mod.rs b/src/unix/nto/mod.rs
index e0a1c9b652102..631972b144676 100644
--- a/src/unix/nto/mod.rs
+++ b/src/unix/nto/mod.rs
@@ -98,7 +98,7 @@ s! {
         pub __old_st_mtime: crate::_Time32t,
         pub __old_st_atime: crate::_Time32t,
         pub __old_st_ctime: crate::_Time32t,
-        pub st_mode: crate::mode_t,
+        pub st_mode: mode_t,
         pub st_nlink: crate::nlink_t,
         pub st_blocksize: crate::blksize_t,
         pub st_nblocks: i32,
@@ -563,7 +563,7 @@ s! {
         pub gid: crate::gid_t,
         pub cuid: crate::uid_t,
         pub cgid: crate::gid_t,
-        pub mode: crate::mode_t,
+        pub mode: mode_t,
         pub seq: c_uint,
         pub key: crate::key_t,
         _reserved: [c_int; 4],
@@ -2175,27 +2175,27 @@ pub const S_IEXEC: mode_t = crate::S_IXUSR;
 pub const S_IWRITE: mode_t = crate::S_IWUSR;
 pub const S_IREAD: mode_t = crate::S_IRUSR;
 
-pub const S_IFIFO: crate::mode_t = 0o1_0000;
-pub const S_IFCHR: crate::mode_t = 0o2_0000;
-pub const S_IFDIR: crate::mode_t = 0o4_0000;
-pub const S_IFBLK: crate::mode_t = 0o6_0000;
-pub const S_IFREG: crate::mode_t = 0o10_0000;
-pub const S_IFLNK: crate::mode_t = 0o12_0000;
-pub const S_IFSOCK: crate::mode_t = 0o14_0000;
-pub const S_IFMT: crate::mode_t = 0o17_0000;
-
-pub const S_IXOTH: crate::mode_t = 0o0001;
-pub const S_IWOTH: crate::mode_t = 0o0002;
-pub const S_IROTH: crate::mode_t = 0o0004;
-pub const S_IRWXO: crate::mode_t = 0o0007;
-pub const S_IXGRP: crate::mode_t = 0o0010;
-pub const S_IWGRP: crate::mode_t = 0o0020;
-pub const S_IRGRP: crate::mode_t = 0o0040;
-pub const S_IRWXG: crate::mode_t = 0o0070;
-pub const S_IXUSR: crate::mode_t = 0o0100;
-pub const S_IWUSR: crate::mode_t = 0o0200;
-pub const S_IRUSR: crate::mode_t = 0o0400;
-pub const S_IRWXU: crate::mode_t = 0o0700;
+pub const S_IFIFO: mode_t = 0o1_0000;
+pub const S_IFCHR: mode_t = 0o2_0000;
+pub const S_IFDIR: mode_t = 0o4_0000;
+pub const S_IFBLK: mode_t = 0o6_0000;
+pub const S_IFREG: mode_t = 0o10_0000;
+pub const S_IFLNK: mode_t = 0o12_0000;
+pub const S_IFSOCK: mode_t = 0o14_0000;
+pub const S_IFMT: mode_t = 0o17_0000;
+
+pub const S_IXOTH: mode_t = 0o0001;
+pub const S_IWOTH: mode_t = 0o0002;
+pub const S_IROTH: mode_t = 0o0004;
+pub const S_IRWXO: mode_t = 0o0007;
+pub const S_IXGRP: mode_t = 0o0010;
+pub const S_IWGRP: mode_t = 0o0020;
+pub const S_IRGRP: mode_t = 0o0040;
+pub const S_IRWXG: mode_t = 0o0070;
+pub const S_IXUSR: mode_t = 0o0100;
+pub const S_IWUSR: mode_t = 0o0200;
+pub const S_IRUSR: mode_t = 0o0400;
+pub const S_IRWXU: mode_t = 0o0700;
 
 pub const F_LOCK: c_int = 1;
 pub const F_TEST: c_int = 3;
@@ -2982,13 +2982,8 @@ extern "C" {
     pub fn fdatasync(fd: c_int) -> c_int;
     pub fn getpriority(which: c_int, who: crate::id_t) -> c_int;
     pub fn setpriority(which: c_int, who: crate::id_t, prio: c_int) -> c_int;
-    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t) -> c_int;
-    pub fn mknodat(
-        __fd: c_int,
-        pathname: *const c_char,
-        mode: crate::mode_t,
-        dev: crate::dev_t,
-    ) -> c_int;
+    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: mode_t) -> c_int;
+    pub fn mknodat(__fd: c_int, pathname: *const c_char, mode: mode_t, dev: crate::dev_t) -> c_int;
 
     pub fn clock_getres(clk_id: crate::clockid_t, tp: *mut crate::timespec) -> c_int;
     pub fn clock_gettime(clk_id: crate::clockid_t, tp: *mut crate::timespec) -> c_int;
@@ -3361,7 +3356,7 @@ extern "C" {
         fd: c_int,
         path: *const c_char,
         oflag: c_int,
-        mode: crate::mode_t,
+        mode: mode_t,
     ) -> c_int;
     pub fn posix_spawn_file_actions_addclose(
         actions: *mut posix_spawn_file_actions_t,
diff --git a/src/unix/redox/mod.rs b/src/unix/redox/mod.rs
index d7ed748c08a43..d9900d1cb4fe7 100644
--- a/src/unix/redox/mod.rs
+++ b/src/unix/redox/mod.rs
@@ -196,7 +196,7 @@ s! {
         pub st_dev: crate::dev_t,
         pub st_ino: crate::ino_t,
         pub st_nlink: crate::nlink_t,
-        pub st_mode: crate::mode_t,
+        pub st_mode: mode_t,
         pub st_uid: crate::uid_t,
         pub st_gid: crate::gid_t,
         pub st_rdev: crate::dev_t,
@@ -661,14 +661,14 @@ pub const SIGPWR: c_int = 30;
 pub const SIGSYS: c_int = 31;
 pub const NSIG: c_int = 32;
 
-pub const SA_NOCLDSTOP: c_ulong = 0x00000001;
-pub const SA_NOCLDWAIT: c_ulong = 0x00000002;
-pub const SA_SIGINFO: c_ulong = 0x00000004;
-pub const SA_RESTORER: c_ulong = 0x04000000;
-pub const SA_ONSTACK: c_ulong = 0x08000000;
-pub const SA_RESTART: c_ulong = 0x10000000;
-pub const SA_NODEFER: c_ulong = 0x40000000;
-pub const SA_RESETHAND: c_ulong = 0x80000000;
+pub const SA_NOCLDWAIT: c_ulong = 0x0000_0002;
+pub const SA_RESTORER: c_ulong = 0x0000_0004; // FIXME(redox): remove after relibc removes it
+pub const SA_SIGINFO: c_ulong = 0x0200_0000;
+pub const SA_ONSTACK: c_ulong = 0x0400_0000;
+pub const SA_RESTART: c_ulong = 0x0800_0000;
+pub const SA_NODEFER: c_ulong = 0x1000_0000;
+pub const SA_RESETHAND: c_ulong = 0x2000_0000;
+pub const SA_NOCLDSTOP: c_ulong = 0x4000_0000;
 
 // sys/file.h
 pub const LOCK_SH: c_int = 1;
@@ -782,6 +782,7 @@ pub const MSG_PEEK: c_int = 2;
 pub const MSG_TRUNC: c_int = 32;
 pub const MSG_DONTWAIT: c_int = 64;
 pub const MSG_WAITALL: c_int = 256;
+pub const SCM_RIGHTS: c_int = 1;
 pub const SHUT_RD: c_int = 0;
 pub const SHUT_WR: c_int = 1;
 pub const SHUT_RDWR: c_int = 2;
@@ -1014,8 +1015,19 @@ pub const PRIO_PROCESS: c_int = 0;
 pub const PRIO_PGRP: c_int = 1;
 pub const PRIO_USER: c_int = 2;
 
-// wait.h
 f! {
+    //sys/socket.h
+    pub {const} fn CMSG_ALIGN(len: size_t) -> size_t {
+        (len + mem::size_of::<size_t>() - 1) & !(mem::size_of::<size_t>() - 1)
+    }
+    pub {const} fn CMSG_LEN(length: c_uint) -> c_uint {
+        (CMSG_ALIGN(mem::size_of::<cmsghdr>()) + length as usize) as c_uint
+    }
+    pub {const} fn CMSG_SPACE(len: c_uint) -> c_uint {
+        (CMSG_ALIGN(len as size_t) + CMSG_ALIGN(mem::size_of::<cmsghdr>())) as c_uint
+    }
+
+    // wait.h
     pub fn FD_CLR(fd: c_int, set: *mut fd_set) -> () {
         let fd = fd as usize;
         let size = mem::size_of_val(&(*set).fds_bits[0]) * 8;
@@ -1228,12 +1240,9 @@ extern "C" {
     pub fn setrlimit(resource: c_int, rlim: *const crate::rlimit) -> c_int;
 
     // sys/socket.h
-    pub fn CMSG_ALIGN(len: size_t) -> size_t;
     pub fn CMSG_DATA(cmsg: *const cmsghdr) -> *mut c_uchar;
     pub fn CMSG_FIRSTHDR(mhdr: *const msghdr) -> *mut cmsghdr;
-    pub fn CMSG_LEN(len: c_uint) -> c_uint;
     pub fn CMSG_NXTHDR(mhdr: *const msghdr, cmsg: *const cmsghdr) -> *mut cmsghdr;
-    pub fn CMSG_SPACE(len: c_uint) -> c_uint;
     pub fn bind(
         socket: c_int,
         address: *const crate::sockaddr,
@@ -1262,18 +1271,8 @@ extern "C" {
     pub fn futimens(fd: c_int, times: *const crate::timespec) -> c_int;
 
     // sys/uio.h
-    pub fn preadv(
-        fd: c_int,
-        iov: *const crate::iovec,
-        iovcnt: c_int,
-        offset: off_t,
-    ) -> ssize_t;
-    pub fn pwritev(
-        fd: c_int,
-        iov: *const crate::iovec,
-        iovcnt: c_int,
-        offset: off_t,
-    ) -> ssize_t;
+    pub fn preadv(fd: c_int, iov: *const crate::iovec, iovcnt: c_int, offset: off_t) -> ssize_t;
+    pub fn pwritev(fd: c_int, iov: *const crate::iovec, iovcnt: c_int, offset: off_t) -> ssize_t;
     pub fn readv(fd: c_int, iov: *const crate::iovec, iovcnt: c_int) -> ssize_t;
     pub fn writev(fd: c_int, iov: *const crate::iovec, iovcnt: c_int) -> ssize_t;
 
diff --git a/src/unix/solarish/mod.rs b/src/unix/solarish/mod.rs
index 3ddde8da0c407..652d5263a5fd0 100644
--- a/src/unix/solarish/mod.rs
+++ b/src/unix/solarish/mod.rs
@@ -96,7 +96,7 @@ s! {
         pub gid: crate::gid_t,
         pub cuid: crate::uid_t,
         pub cgid: crate::gid_t,
-        pub mode: crate::mode_t,
+        pub mode: mode_t,
         pub seq: c_uint,
         pub key: crate::key_t,
     }
@@ -328,7 +328,7 @@ s! {
     pub struct stat {
         pub st_dev: crate::dev_t,
         pub st_ino: crate::ino_t,
-        pub st_mode: crate::mode_t,
+        pub st_mode: mode_t,
         pub st_nlink: crate::nlink_t,
         pub st_uid: crate::uid_t,
         pub st_gid: crate::gid_t,
@@ -2648,9 +2648,8 @@ extern "C" {
     pub fn getpriority(which: c_int, who: c_int) -> c_int;
     pub fn setpriority(which: c_int, who: c_int, prio: c_int) -> c_int;
 
-    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t, dev: dev_t)
-        -> c_int;
-    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t) -> c_int;
+    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: mode_t, dev: dev_t) -> c_int;
+    pub fn mkfifoat(dirfd: c_int, pathname: *const c_char, mode: mode_t) -> c_int;
     pub fn sethostname(name: *const c_char, len: c_int) -> c_int;
     pub fn if_nameindex() -> *mut if_nameindex;
     pub fn if_freenameindex(ptr: *mut if_nameindex);
@@ -2727,7 +2726,7 @@ extern "C" {
         fildes: c_int,
         path: *const c_char,
         oflag: c_int,
-        mode: crate::mode_t,
+        mode: mode_t,
     ) -> c_int;
     pub fn posix_spawn_file_actions_addclose(
         file_actions: *mut posix_spawn_file_actions_t,
@@ -2810,7 +2809,7 @@ extern "C" {
 
     pub fn shmget(key: key_t, size: size_t, shmflg: c_int) -> c_int;
 
-    pub fn shm_open(name: *const c_char, oflag: c_int, mode: crate::mode_t) -> c_int;
+    pub fn shm_open(name: *const c_char, oflag: c_int, mode: mode_t) -> c_int;
     pub fn shm_unlink(name: *const c_char) -> c_int;
 
     pub fn seekdir(dirp: *mut crate::DIR, loc: c_long);
diff --git a/src/unix/solarish/x86_64.rs b/src/unix/solarish/x86_64.rs
index 4deaac0fc1718..2f82d244863aa 100644
--- a/src/unix/solarish/x86_64.rs
+++ b/src/unix/solarish/x86_64.rs
@@ -91,7 +91,9 @@ s_no_extra_traits! {
         #[cfg(target_os = "solaris")]
         pub uc_xrs: solaris::xrs_t,
         #[cfg(target_os = "solaris")]
-        pub uc_filler: [c_long; 3],
+        pub uc_lwpid: c_uint,
+        #[cfg(target_os = "solaris")]
+        pub uc_filler: [c_long; 2],
     }
 }
 
diff --git a/src/vxworks/mod.rs b/src/vxworks/mod.rs
index 3a44adc7ea5b0..cdca84e471e55 100644
--- a/src/vxworks/mod.rs
+++ b/src/vxworks/mod.rs
@@ -220,7 +220,7 @@ s! {
     pub struct stat {
         pub st_dev: crate::dev_t,
         pub st_ino: crate::ino_t,
-        pub st_mode: crate::mode_t,
+        pub st_mode: mode_t,
         pub st_nlink: crate::nlink_t,
         pub st_uid: crate::uid_t,
         pub st_gid: crate::gid_t,
@@ -745,6 +745,7 @@ pub const S_taskLib_ILLEGAL_PRIORITY: c_int = taskErrorBase + 0x0068;
 
 // FIXME(vxworks): could also be useful for TASK_DESC type
 pub const VX_TASK_NAME_LENGTH: c_int = 31;
+pub const VX_TASK_RENAME_LENGTH: c_int = 16;
 
 // semLibCommon.h
 pub const S_semLib_INVALID_STATE: c_int = semErrorBase + 0x0065;
@@ -806,6 +807,9 @@ pub const S_IWOTH: c_int = 0o0002;
 pub const S_IXOTH: c_int = 0o0001;
 pub const S_IRWXO: c_int = 0o0007;
 
+pub const UTIME_OMIT: c_long = 0x3ffffffe;
+pub const UTIME_NOW: c_long = 0x3fffffff;
+
 // socket.h
 pub const SOL_SOCKET: c_int = 0xffff;
 pub const SOMAXCONN: c_int = 128;
@@ -1299,7 +1303,7 @@ extern "C" {
     pub fn msync(addr: *mut c_void, len: size_t, flags: c_int) -> c_int;
 
     pub fn truncate(path: *const c_char, length: off_t) -> c_int;
-    pub fn shm_open(name: *const c_char, oflag: c_int, mode: crate::mode_t) -> c_int;
+    pub fn shm_open(name: *const c_char, oflag: c_int, mode: mode_t) -> c_int;
     pub fn shm_unlink(name: *const c_char) -> c_int;
 
     pub fn gettimeofday(tp: *mut crate::timeval, tz: *mut c_void) -> c_int;
@@ -1810,13 +1814,13 @@ extern "C" {
     pub fn rmdir(path: *const c_char) -> c_int;
 
     // stat.h
-    pub fn mkdir(dirName: *const c_char, mode: crate::mode_t) -> c_int;
+    pub fn mkdir(dirName: *const c_char, mode: mode_t) -> c_int;
 
     // stat.h
-    pub fn chmod(path: *const c_char, mode: crate::mode_t) -> c_int;
+    pub fn chmod(path: *const c_char, mode: mode_t) -> c_int;
 
     // stat.h
-    pub fn fchmod(attr1: c_int, attr2: crate::mode_t) -> c_int;
+    pub fn fchmod(attr1: c_int, attr2: mode_t) -> c_int;
 
     // unistd.h
     pub fn fsync(fd: c_int) -> c_int;
diff --git a/src/wasi/mod.rs b/src/wasi/mod.rs
index 035ff8958ab20..61061918c05fc 100644
--- a/src/wasi/mod.rs
+++ b/src/wasi/mod.rs
@@ -653,7 +653,7 @@ extern "C" {
         newpath: *const c_char,
         flags: c_int,
     ) -> c_int;
-    pub fn mkdirat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t) -> 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,
diff --git a/src/windows/mod.rs b/src/windows/mod.rs
index 06cab0e5037a3..8490b709bae9e 100644
--- a/src/windows/mod.rs
+++ b/src/windows/mod.rs
@@ -382,12 +382,25 @@ extern "C" {
     pub fn signal(signum: c_int, handler: sighandler_t) -> sighandler_t;
     pub fn raise(signum: c_int) -> c_int;
 
+    pub fn clock() -> clock_t;
+    pub fn ctime(sourceTime: *const time_t) -> *mut c_char;
+    pub fn difftime(timeEnd: time_t, timeStart: time_t) -> c_double;
     #[link_name = "_gmtime64_s"]
     pub fn gmtime_s(destTime: *mut tm, srcTime: *const time_t) -> c_int;
+    #[link_name = "_get_daylight"]
+    pub fn get_daylight(hours: *mut c_int) -> errno_t;
+    #[link_name = "_get_dstbias"]
+    pub fn get_dstbias(seconds: *mut c_long) -> errno_t;
+    #[link_name = "_get_timezone"]
+    pub fn get_timezone(seconds: *mut c_long) -> errno_t;
+    #[link_name = "_get_tzname"]
+    pub fn get_tzname(p_return_value: *mut size_t, time_zone_name: *mut c_char, size_in_bytes: size_t, index: c_int) -> errno_t;
     #[link_name = "_localtime64_s"]
     pub fn localtime_s(tmDest: *mut tm, sourceTime: *const time_t) -> crate::errno_t;
     #[link_name = "_time64"]
     pub fn time(destTime: *mut time_t) -> time_t;
+    #[link_name = "_tzset"]
+    pub fn tzset();
     #[link_name = "_chmod"]
     pub fn chmod(path: *const c_char, mode: c_int) -> c_int;
     #[link_name = "_wchmod"]
diff --git a/triagebot.toml b/triagebot.toml
index f42f244bd6f85..fe3a00af581f7 100644
--- a/triagebot.toml
+++ b/triagebot.toml
@@ -11,10 +11,11 @@ allow-unauthenticated = [
 warn_non_default_branch.enable = true
 contributing_url = "https://github.com/rust-lang/libc/blob/HEAD/CONTRIBUTING.md"
 
-[assign.owners]
-"*" = [
-    "@tgross35",
-]
+# Ensure issue links link to this repo
+[issue-links]
+
+# Prevents mentions in commits to avoid users being spammed
+[no-mentions]
 
 [autolabel."A-CI"]
 trigger_files = [