diff --git a/examples/process.rs b/examples/process.rs
index 77f8601f3..e8d5397fe 100644
--- a/examples/process.rs
+++ b/examples/process.rs
@@ -42,9 +42,13 @@ fn main() -> io::Result<()> {
     println!("Data Limit: {:?}", getrlimit(Resource::Data));
     println!("Stack Limit: {:?}", getrlimit(Resource::Stack));
     println!("Core Limit: {:?}", getrlimit(Resource::Core));
+    #[cfg(not(target_os = "solaris"))]
     println!("Rss Limit: {:?}", getrlimit(Resource::Rss));
+    #[cfg(not(target_os = "solaris"))]
     println!("Nproc Limit: {:?}", getrlimit(Resource::Nproc));
+    #[cfg(not(target_os = "solaris"))]
     println!("Nofile Limit: {:?}", getrlimit(Resource::Nofile));
+    #[cfg(not(target_os = "solaris"))]
     println!("Memlock Limit: {:?}", getrlimit(Resource::Memlock));
     #[cfg(not(target_os = "openbsd"))]
     println!("As Limit: {:?}", getrlimit(Resource::As));
@@ -54,6 +58,7 @@ fn main() -> io::Result<()> {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     println!("Locks Limit: {:?}", getrlimit(Resource::Locks));
     #[cfg(not(any(
@@ -62,6 +67,7 @@ fn main() -> io::Result<()> {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     println!("Sigpending Limit: {:?}", getrlimit(Resource::Sigpending));
     #[cfg(not(any(
@@ -70,6 +76,7 @@ fn main() -> io::Result<()> {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     println!("Msgqueue Limit: {:?}", getrlimit(Resource::Msgqueue));
     #[cfg(not(any(
@@ -78,6 +85,7 @@ fn main() -> io::Result<()> {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     println!("Nice Limit: {:?}", getrlimit(Resource::Nice));
     #[cfg(not(any(
@@ -86,6 +94,7 @@ fn main() -> io::Result<()> {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     println!("Rtprio Limit: {:?}", getrlimit(Resource::Rtprio));
     #[cfg(not(any(
@@ -96,6 +105,7 @@ fn main() -> io::Result<()> {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     println!("Rttime Limit: {:?}", getrlimit(Resource::Rttime));
     #[cfg(any(
diff --git a/examples/stdio.rs b/examples/stdio.rs
index 9e79d5356..a435210d8 100644
--- a/examples/stdio.rs
+++ b/examples/stdio.rs
@@ -124,6 +124,7 @@ fn show<Fd: AsFd>(fd: Fd) -> io::Result<()> {
                 target_os = "netbsd",
                 target_os = "openbsd",
                 target_os = "redox",
+                target_os = "solaris",
             )))]
             if (term.c_iflag & IUTF8) != 0 {
                 print!(" IUTF8");
@@ -193,6 +194,7 @@ fn show<Fd: AsFd>(fd: Fd) -> io::Result<()> {
                 target_os = "netbsd",
                 target_os = "openbsd",
                 target_os = "redox",
+                target_os = "solaris",
             )))]
             if (term.c_oflag & NLDLY) != 0 {
                 print!(" NLDLY");
@@ -206,6 +208,7 @@ fn show<Fd: AsFd>(fd: Fd) -> io::Result<()> {
                 target_os = "netbsd",
                 target_os = "openbsd",
                 target_os = "redox",
+                target_os = "solaris",
             )))]
             if (term.c_oflag & CRDLY) != 0 {
                 print!(" CRDLY");
@@ -217,6 +220,7 @@ fn show<Fd: AsFd>(fd: Fd) -> io::Result<()> {
                 target_os = "openbsd",
                 target_os = "illumos",
                 target_os = "redox",
+                target_os = "solaris",
             )))]
             if (term.c_oflag & TABDLY) != 0 {
                 print!(" TABDLY");
@@ -230,6 +234,7 @@ fn show<Fd: AsFd>(fd: Fd) -> io::Result<()> {
                 target_os = "netbsd",
                 target_os = "openbsd",
                 target_os = "redox",
+                target_os = "solaris",
             )))]
             if (term.c_oflag & BSDLY) != 0 {
                 print!(" BSDLY");
@@ -244,6 +249,7 @@ fn show<Fd: AsFd>(fd: Fd) -> io::Result<()> {
                 target_os = "netbsd",
                 target_os = "openbsd",
                 target_os = "redox",
+                target_os = "solaris",
             )))]
             if (term.c_oflag & VTDLY) != 0 {
                 print!(" VTDLY");
@@ -258,6 +264,7 @@ fn show<Fd: AsFd>(fd: Fd) -> io::Result<()> {
                 target_os = "netbsd",
                 target_os = "openbsd",
                 target_os = "redox",
+                target_os = "solaris",
             )))]
             if (term.c_oflag & FFDLY) != 0 {
                 print!(" FFDLY");
@@ -286,6 +293,7 @@ fn show<Fd: AsFd>(fd: Fd) -> io::Result<()> {
                 target_os = "netbsd",
                 target_os = "openbsd",
                 target_os = "redox",
+                target_os = "solaris",
             )))]
             if (term.c_cflag & CBAUDEX) != 0 {
                 print!(" CBAUDEX");
@@ -339,6 +347,7 @@ fn show<Fd: AsFd>(fd: Fd) -> io::Result<()> {
                 target_os = "netbsd",
                 target_os = "openbsd",
                 target_os = "redox",
+                target_os = "solaris",
             )))]
             if (term.c_cflag & CMSPAR) != 0 {
                 print!(" CMSPAR");
diff --git a/src/backend/libc/fs/dir.rs b/src/backend/libc/fs/dir.rs
index 616f5c02e..95e6292a5 100644
--- a/src/backend/libc/fs/dir.rs
+++ b/src/backend/libc/fs/dir.rs
@@ -1,6 +1,6 @@
 use super::super::c;
 use super::super::conv::owned_fd;
-#[cfg(not(target_os = "illumos"))]
+#[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
 use super::types::FileType;
 use crate::fd::{AsFd, BorrowedFd};
 use crate::ffi::CStr;
@@ -11,10 +11,16 @@ use crate::fs::{fcntl_getfl, fstat, openat, Mode, OFlags, Stat};
     target_os = "illumos",
     target_os = "netbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 use crate::fs::{fstatfs, StatFs};
-#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi")))]
+#[cfg(not(any(
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+    target_os = "wasi",
+)))]
 use crate::fs::{fstatvfs, StatVfs};
 use crate::io;
 #[cfg(not(any(target_os = "fuchsia", target_os = "wasi")))]
@@ -134,6 +140,7 @@ impl Dir {
         target_os = "illumos",
         target_os = "netbsd",
         target_os = "redox",
+        target_os = "solaris",
         target_os = "wasi",
     )))]
     #[inline]
@@ -142,7 +149,12 @@ impl Dir {
     }
 
     /// `fstatvfs(self)`
-    #[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi")))]
+    #[cfg(not(any(
+        target_os = "illumos",
+        target_os = "redox",
+        target_os = "solaris",
+        target_os = "wasi",
+    )))]
     #[inline]
     pub fn statvfs(&self) -> io::Result<StatVfs> {
         fstatvfs(unsafe { BorrowedFd::borrow_raw(c::dirfd(self.0.as_ptr())) })
@@ -160,7 +172,7 @@ impl Dir {
 // struct, as the name is NUL-terminated and memory may not be allocated for
 // the full extent of the struct. Copy the fields one at a time.
 unsafe fn read_dirent(input: &libc_dirent) -> libc_dirent {
-    #[cfg(not(target_os = "illumos"))]
+    #[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
     let d_type = input.d_type;
 
     #[cfg(not(any(
@@ -204,7 +216,7 @@ unsafe fn read_dirent(input: &libc_dirent) -> libc_dirent {
     // whole `d_name` field, which may not be entirely allocated.
     #[cfg_attr(target_os = "wasi", allow(unused_mut))]
     let mut dirent = libc_dirent {
-        #[cfg(not(target_os = "illumos"))]
+        #[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
         d_type,
         #[cfg(not(any(
             target_os = "dragonfly",
@@ -315,7 +327,7 @@ impl DirEntry {
     }
 
     /// Returns the type of this directory entry.
-    #[cfg(not(target_os = "illumos"))]
+    #[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
     #[inline]
     pub fn file_type(&self) -> FileType {
         FileType::from_dirent_d_type(self.dirent.d_type)
diff --git a/src/backend/libc/fs/mod.rs b/src/backend/libc/fs/mod.rs
index 02b7b2d6a..b0a5ab6f2 100644
--- a/src/backend/libc/fs/mod.rs
+++ b/src/backend/libc/fs/mod.rs
@@ -10,6 +10,7 @@ pub(crate) mod dir;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 pub(crate) mod makedev;
diff --git a/src/backend/libc/fs/syscalls.rs b/src/backend/libc/fs/syscalls.rs
index 3db6628f1..db75431ff 100644
--- a/src/backend/libc/fs/syscalls.rs
+++ b/src/backend/libc/fs/syscalls.rs
@@ -16,6 +16,7 @@ use super::super::offset::libc_fallocate;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 use super::super::offset::libc_posix_fadvise;
 #[cfg(not(any(
@@ -29,6 +30,7 @@ use super::super::offset::libc_posix_fadvise;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 use super::super::offset::libc_posix_fallocate;
 use super::super::offset::{libc_fstat, libc_fstatat, libc_ftruncate, libc_lseek, libc_off_t};
@@ -36,10 +38,16 @@ use super::super::offset::{libc_fstat, libc_fstatat, libc_ftruncate, libc_lseek,
     target_os = "illumos",
     target_os = "netbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 use super::super::offset::{libc_fstatfs, libc_statfs};
-#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi")))]
+#[cfg(not(any(
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+    target_os = "wasi",
+)))]
 use super::super::offset::{libc_fstatvfs, libc_statvfs};
 #[cfg(all(
     any(target_arch = "arm", target_arch = "mips", target_arch = "x86"),
@@ -52,7 +60,7 @@ use crate::fd::{BorrowedFd, OwnedFd};
 use crate::ffi::CStr;
 #[cfg(any(target_os = "ios", target_os = "macos"))]
 use crate::ffi::CString;
-#[cfg(not(target_os = "illumos"))]
+#[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
 use crate::fs::Access;
 #[cfg(not(any(
     target_os = "dragonfly",
@@ -62,6 +70,7 @@ use crate::fs::Access;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 use crate::fs::Advice;
 #[cfg(not(any(
@@ -70,9 +79,10 @@ use crate::fs::Advice;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 use crate::fs::FallocateFlags;
-#[cfg(not(target_os = "wasi"))]
+#[cfg(not(any(target_os = "solaris", target_os = "wasi")))]
 use crate::fs::FlockOperation;
 #[cfg(any(target_os = "android", target_os = "freebsd", target_os = "linux"))]
 use crate::fs::MemfdFlags;
@@ -87,6 +97,7 @@ use crate::fs::SealFlags;
     target_os = "illumos",
     target_os = "netbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 use crate::fs::StatFs;
@@ -100,7 +111,12 @@ use crate::fs::{cwd, RenameFlags, ResolveFlags, Statx, StatxFlags};
 )))]
 use crate::fs::{Dev, FileType};
 use crate::fs::{FdFlags, Mode, OFlags, Stat, Timestamps};
-#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi")))]
+#[cfg(not(any(
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+    target_os = "wasi",
+)))]
 use crate::fs::{StatVfs, StatVfsMountFlags};
 use crate::io::{self, SeekFrom};
 #[cfg(not(target_os = "wasi"))]
@@ -202,6 +218,7 @@ pub(crate) fn openat(
     target_os = "illumos",
     target_os = "netbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 #[inline]
@@ -213,7 +230,12 @@ pub(crate) fn statfs(filename: &CStr) -> io::Result<StatFs> {
     }
 }
 
-#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi")))]
+#[cfg(not(any(
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+    target_os = "wasi",
+)))]
 #[inline]
 pub(crate) fn statvfs(filename: &CStr) -> io::Result<StatVfs> {
     unsafe {
@@ -403,7 +425,12 @@ fn statat_old(dirfd: BorrowedFd<'_>, path: &CStr, flags: AtFlags) -> io::Result<
     }
 }
 
-#[cfg(not(any(target_os = "emscripten", target_os = "illumos", target_os = "redox")))]
+#[cfg(not(any(
+    target_os = "emscripten",
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+)))]
 pub(crate) fn accessat(
     dirfd: BorrowedFd<'_>,
     path: &CStr,
@@ -776,6 +803,7 @@ pub(crate) fn copy_file_range(
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub(crate) fn fadvise(fd: BorrowedFd<'_>, offset: u64, len: u64, advice: Advice) -> io::Result<()> {
     let offset = offset as i64;
@@ -848,7 +876,7 @@ pub(crate) fn fcntl_add_seals(fd: BorrowedFd<'_>, seals: SealFlags) -> io::Resul
 
 #[cfg(not(target_os = "wasi"))]
 pub(crate) fn fcntl_dupfd_cloexec(fd: BorrowedFd<'_>, min: RawFd) -> io::Result<OwnedFd> {
-    unsafe { ret_owned_fd(c::fcntl(borrowed_fd(fd), c::F_DUPFD_CLOEXEC, min)) }
+    unsafe { ret_owned_fd(c::fcntl(borrowed_fd(fd), 47, min)) }
 }
 
 pub(crate) fn seek(fd: BorrowedFd<'_>, pos: SeekFrom) -> io::Result<u64> {
@@ -910,7 +938,7 @@ pub(crate) fn fchown(fd: BorrowedFd<'_>, owner: Option<Uid>, group: Option<Gid>)
     }
 }
 
-#[cfg(not(target_os = "wasi"))]
+#[cfg(not(any(target_os = "solaris", target_os = "wasi")))]
 pub(crate) fn flock(fd: BorrowedFd<'_>, operation: FlockOperation) -> io::Result<()> {
     unsafe { ret(c::flock(borrowed_fd(fd), operation as c::c_int)) }
 }
@@ -959,6 +987,7 @@ fn fstat_old(fd: BorrowedFd<'_>) -> io::Result<Stat> {
     target_os = "illumos",
     target_os = "netbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 pub(crate) fn fstatfs(fd: BorrowedFd<'_>) -> io::Result<StatFs> {
@@ -969,7 +998,12 @@ pub(crate) fn fstatfs(fd: BorrowedFd<'_>) -> io::Result<StatFs> {
     }
 }
 
-#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi")))]
+#[cfg(not(any(
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+    target_os = "wasi",
+)))]
 pub(crate) fn fstatvfs(fd: BorrowedFd<'_>) -> io::Result<StatVfs> {
     let mut statvfs = MaybeUninit::<libc_statvfs>::uninit();
     unsafe {
@@ -978,7 +1012,12 @@ pub(crate) fn fstatvfs(fd: BorrowedFd<'_>) -> io::Result<StatVfs> {
     }
 }
 
-#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi")))]
+#[cfg(not(any(
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+    target_os = "wasi"
+)))]
 fn libc_statvfs_to_statvfs(from: libc_statvfs) -> StatVfs {
     StatVfs {
         f_bsize: from.f_bsize as u64,
@@ -1104,6 +1143,7 @@ unsafe fn futimens_old(fd: BorrowedFd<'_>, times: &Timestamps) -> io::Result<()>
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub(crate) fn fallocate(
     fd: BorrowedFd<'_>,
diff --git a/src/backend/libc/fs/types.rs b/src/backend/libc/fs/types.rs
index 829100410..1769f7282 100644
--- a/src/backend/libc/fs/types.rs
+++ b/src/backend/libc/fs/types.rs
@@ -438,7 +438,7 @@ impl FileType {
     }
 
     /// Construct a `FileType` from the `d_type` field of a `c::dirent`.
-    #[cfg(not(any(target_os = "illumos", target_os = "redox")))]
+    #[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "solaris")))]
     pub(crate) const fn from_dirent_d_type(d_type: u8) -> Self {
         match d_type {
             c::DT_REG => Self::RegularFile,
@@ -467,6 +467,7 @@ impl FileType {
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 #[derive(Debug, Copy, Clone, Eq, PartialEq)]
 #[repr(u32)]
@@ -685,6 +686,7 @@ bitflags! {
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 bitflags! {
     /// `FALLOC_FL_*` constants for use with [`fallocate`].
@@ -778,7 +780,12 @@ bitflags! {
     }
 }
 
-#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi",)))]
+#[cfg(not(any(
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+    target_os = "wasi",
+)))]
 bitflags! {
     /// `ST_*` constants for use with [`StatVfs`].
     pub struct StatVfsMountFlags: u64 {
@@ -821,7 +828,7 @@ bitflags! {
 /// `LOCK_*` constants for use with [`flock`]
 ///
 /// [`flock`]: crate::fs::flock
-#[cfg(not(target_os = "wasi"))]
+#[cfg(not(any(target_os = "solaris", target_os = "wasi")))]
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
 #[repr(i32)]
 pub enum FlockOperation {
@@ -910,6 +917,7 @@ pub struct Stat {
     target_os = "l4re",
     target_os = "netbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 #[allow(clippy::module_name_repetitions)]
@@ -931,7 +939,12 @@ pub type StatFs = c::statfs64;
 ///
 /// [`statvfs`]: crate::fs::statvfs
 /// [`fstatvfs`]: crate::fs::fstatvfs
-#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi",)))]
+#[cfg(not(any(
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+    target_os = "wasi",
+)))]
 #[allow(missing_docs)]
 pub struct StatVfs {
     pub f_bsize: u64,
diff --git a/src/backend/libc/io/errno.rs b/src/backend/libc/io/errno.rs
index 470cf205c..7a37f5c11 100644
--- a/src/backend/libc/io/errno.rs
+++ b/src/backend/libc/io/errno.rs
@@ -216,6 +216,7 @@ impl Errno {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
         target_os = "wasi",
     )))]
     pub const DOTDOT: Self = Self(c::EDOTDOT);
@@ -257,6 +258,7 @@ impl Errno {
         target_os = "netbsd",
         target_os = "openbsd",
         target_os = "redox",
+        target_os = "solaris",
         target_os = "wasi",
     )))]
     pub const HWPOISON: Self = Self(c::EHWPOISON);
@@ -301,6 +303,7 @@ impl Errno {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
         target_os = "wasi",
     )))]
     pub const ISNAM: Self = Self(c::EISNAM);
@@ -314,6 +317,7 @@ impl Errno {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
         target_os = "wasi",
     )))]
     pub const KEYEXPIRED: Self = Self(c::EKEYEXPIRED);
@@ -327,6 +331,7 @@ impl Errno {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
         target_os = "wasi",
     )))]
     pub const KEYREJECTED: Self = Self(c::EKEYREJECTED);
@@ -340,6 +345,7 @@ impl Errno {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
         target_os = "wasi",
     )))]
     pub const KEYREVOKED: Self = Self(c::EKEYREVOKED);
@@ -475,6 +481,7 @@ impl Errno {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
         target_os = "wasi",
     )))]
     pub const MEDIUMTYPE: Self = Self(c::EMEDIUMTYPE);
@@ -500,6 +507,7 @@ impl Errno {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
         target_os = "wasi",
     )))]
     pub const NAVAIL: Self = Self(c::ENAVAIL);
@@ -586,6 +594,7 @@ impl Errno {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
         target_os = "wasi",
     )))]
     pub const NOKEY: Self = Self(c::ENOKEY);
@@ -605,6 +614,7 @@ impl Errno {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
         target_os = "wasi",
     )))]
     pub const NOMEDIUM: Self = Self(c::ENOMEDIUM);
@@ -690,6 +700,7 @@ impl Errno {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
         target_os = "wasi",
     )))]
     pub const NOTNAM: Self = Self(c::ENOTNAM);
@@ -817,6 +828,7 @@ impl Errno {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
         target_os = "wasi",
     )))]
     pub const REMOTEIO: Self = Self(c::EREMOTEIO);
@@ -844,6 +856,7 @@ impl Errno {
         target_os = "netbsd",
         target_os = "openbsd",
         target_os = "redox",
+        target_os = "solaris",
         target_os = "wasi",
     )))]
     pub const RFKILL: Self = Self(c::ERFKILL);
@@ -929,6 +942,7 @@ impl Errno {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
         target_os = "wasi",
     )))]
     pub const UCLEAN: Self = Self(c::EUCLEAN);
diff --git a/src/backend/libc/io/syscalls.rs b/src/backend/libc/io/syscalls.rs
index 48ac42746..9d1981e99 100644
--- a/src/backend/libc/io/syscalls.rs
+++ b/src/backend/libc/io/syscalls.rs
@@ -7,7 +7,7 @@ use super::super::conv::{
     borrowed_fd, ret, ret_c_int, ret_discarded_fd, ret_owned_fd, ret_ssize_t,
 };
 use super::super::offset::{libc_pread, libc_pwrite};
-#[cfg(not(target_os = "redox"))]
+#[cfg(not(any(target_os = "redox", target_os = "solaris")))]
 use super::super::offset::{libc_preadv, libc_pwritev};
 #[cfg(all(target_os = "linux", target_env = "gnu"))]
 use super::super::offset::{libc_preadv2, libc_pwritev2};
@@ -103,7 +103,7 @@ pub(crate) fn writev(fd: BorrowedFd<'_>, bufs: &[IoSlice]) -> io::Result<usize>
     Ok(nwritten as usize)
 }
 
-#[cfg(not(target_os = "redox"))]
+#[cfg(not(any(target_os = "redox", target_os = "solaris")))]
 pub(crate) fn preadv(
     fd: BorrowedFd<'_>,
     bufs: &mut [IoSliceMut],
@@ -122,7 +122,7 @@ pub(crate) fn preadv(
     Ok(nread as usize)
 }
 
-#[cfg(not(target_os = "redox"))]
+#[cfg(not(any(target_os = "redox", target_os = "solaris")))]
 pub(crate) fn pwritev(fd: BorrowedFd<'_>, bufs: &[IoSlice], offset: u64) -> io::Result<usize> {
     // Silently cast; we'll get `EINVAL` if the value is negative.
     let offset = offset as i64;
diff --git a/src/backend/libc/io/types.rs b/src/backend/libc/io/types.rs
index 483f3a6af..ada610471 100644
--- a/src/backend/libc/io/types.rs
+++ b/src/backend/libc/io/types.rs
@@ -53,7 +53,12 @@ bitflags! {
         /// `O_CLOEXEC`
         const CLOEXEC = c::O_CLOEXEC;
         /// `O_DIRECT`
-        #[cfg(not(any(target_os = "illumos", target_os = "openbsd", target_os = "redox")))]
+        #[cfg(not(any(
+            target_os = "illumos",
+            target_os = "openbsd",
+            target_os = "redox",
+            target_os = "solaris",
+        )))]
         const DIRECT = c::O_DIRECT;
         /// `O_NONBLOCK`
         const NONBLOCK = c::O_NONBLOCK;
@@ -76,7 +81,12 @@ bitflags! {
 }
 
 /// `PIPE_BUF`—The maximum size of a write to a pipe guaranteed to be atomic.
-#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi")))]
+#[cfg(not(any(
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+    target_os = "wasi",
+)))]
 pub const PIPE_BUF: usize = c::PIPE_BUF;
 
 #[cfg(not(any(windows, target_os = "redox")))]
diff --git a/src/backend/libc/mm/types.rs b/src/backend/libc/mm/types.rs
index 385b6c0e6..620298f35 100644
--- a/src/backend/libc/mm/types.rs
+++ b/src/backend/libc/mm/types.rs
@@ -62,6 +62,7 @@ bitflags! {
             target_os = "netbsd",
             target_os = "openbsd",
             target_os = "redox",
+            target_os = "solaris",
         )))]
         const SHARED_VALIDATE = c::MAP_SHARED_VALIDATE;
         /// `MAP_PRIVATE`
@@ -76,6 +77,7 @@ bitflags! {
             target_os = "netbsd",
             target_os = "openbsd",
             target_os = "redox",
+            target_os = "solaris",
         )))]
         const DENYWRITE = c::MAP_DENYWRITE;
         /// `MAP_FIXED`
@@ -93,6 +95,7 @@ bitflags! {
             target_os = "netbsd",
             target_os = "openbsd",
             target_os = "redox",
+            target_os = "solaris",
         )))]
         const FIXED_NOREPLACE = c::MAP_FIXED_NOREPLACE;
         /// `MAP_GROWSDOWN`
@@ -105,6 +108,7 @@ bitflags! {
             target_os = "netbsd",
             target_os = "openbsd",
             target_os = "redox",
+            target_os = "solaris",
         )))]
         const GROWSDOWN = c::MAP_GROWSDOWN;
         /// `MAP_HUGETLB`
@@ -117,6 +121,7 @@ bitflags! {
             target_os = "netbsd",
             target_os = "openbsd",
             target_os = "redox",
+            target_os = "solaris",
         )))]
         const HUGETLB = c::MAP_HUGETLB;
         /// `MAP_HUGE_2MB`
@@ -132,6 +137,7 @@ bitflags! {
             target_os = "netbsd",
             target_os = "openbsd",
             target_os = "redox",
+            target_os = "solaris",
         )))]
         const HUGE_2MB = c::MAP_HUGE_2MB;
         /// `MAP_HUGE_1GB`
@@ -147,6 +153,7 @@ bitflags! {
             target_os = "netbsd",
             target_os = "openbsd",
             target_os = "redox",
+            target_os = "solaris",
         )))]
         const HUGE_1GB = c::MAP_HUGE_1GB;
         /// `MAP_LOCKED`
@@ -159,6 +166,7 @@ bitflags! {
             target_os = "netbsd",
             target_os = "openbsd",
             target_os = "redox",
+            target_os = "solaris",
         )))]
         const LOCKED = c::MAP_LOCKED;
         /// `MAP_NORESERVE`
@@ -174,6 +182,7 @@ bitflags! {
             target_os = "netbsd",
             target_os = "openbsd",
             target_os = "redox",
+            target_os = "solaris",
         )))]
         const POPULATE = c::MAP_POPULATE;
         /// `MAP_STACK`
@@ -184,6 +193,7 @@ bitflags! {
             target_os = "macos",
             target_os = "netbsd",
             target_os = "redox",
+            target_os = "solaris",
         )))]
         const STACK = c::MAP_STACK;
         /// `MAP_SYNC`
@@ -199,6 +209,7 @@ bitflags! {
             target_os = "netbsd",
             target_os = "openbsd",
             target_os = "redox",
+            target_os = "solaris",
             all(
                 any(target_os = "android", target_os = "linux"),
                 any(target_arch = "mips", target_arch = "mips64"),
diff --git a/src/backend/libc/net/ext.rs b/src/backend/libc/net/ext.rs
index 7b5313c51..804a7544c 100644
--- a/src/backend/libc/net/ext.rs
+++ b/src/backend/libc/net/ext.rs
@@ -175,7 +175,7 @@ pub(crate) const fn sockaddr_in6_new(
         sin6_flowinfo,
         sin6_addr,
         sin6_scope_id,
-        #[cfg(target_os = "illumos")]
+        #[cfg(any(target_os = "illumos", target_os = "solaris"))]
         __sin6_src_id: 0,
     }
 }
diff --git a/src/backend/libc/net/send_recv.rs b/src/backend/libc/net/send_recv.rs
index 9ab908d62..91ed9be77 100644
--- a/src/backend/libc/net/send_recv.rs
+++ b/src/backend/libc/net/send_recv.rs
@@ -14,6 +14,7 @@ bitflags! {
             target_os = "macos",
             target_os = "netbsd",
             target_os = "openbsd",
+            target_os = "solaris",
         )))]
         const CONFIRM = c::MSG_CONFIRM;
         /// `MSG_DONTROUTE`
@@ -34,6 +35,7 @@ bitflags! {
             target_os = "macos",
             target_os = "netbsd",
             target_os = "openbsd",
+            target_os = "solaris",
         )))]
         const MORE = c::MSG_MORE;
         #[cfg(not(any(windows, target_os = "ios", target_os = "macos")))]
@@ -47,7 +49,7 @@ bitflags! {
 bitflags! {
     /// `MSG_*`
     pub struct RecvFlags: i32 {
-        #[cfg(not(any(windows, target_os = "illumos", target_os = "ios", target_os = "macos")))]
+        #[cfg(not(any(windows, target_os = "illumos", target_os = "ios", target_os = "macos", target_os = "solaris")))]
         /// `MSG_CMSG_CLOEXEC`
         const CMSG_CLOEXEC = c::MSG_CMSG_CLOEXEC;
         /// `MSG_DONTWAIT`
@@ -63,6 +65,7 @@ bitflags! {
             target_os = "macos",
             target_os = "netbsd",
             target_os = "openbsd",
+            target_os = "solaris",
         )))]
         const ERRQUEUE = c::MSG_ERRQUEUE;
         /// `MSG_OOB`
diff --git a/src/backend/libc/net/types.rs b/src/backend/libc/net/types.rs
index 63e3a317e..53f1af3d9 100644
--- a/src/backend/libc/net/types.rs
+++ b/src/backend/libc/net/types.rs
@@ -69,6 +69,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const NETLINK: Self = Self(c::AF_NETLINK as _);
     /// `AF_UNIX`, aka `AF_LOCAL`
@@ -84,6 +85,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const AX25: Self = Self(c::AF_AX25 as _);
     /// `AF_IPX`
@@ -100,6 +102,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const NETROM: Self = Self(c::AF_NETROM as _);
     /// `AF_BRIDGE`
@@ -112,6 +115,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const BRIDGE: Self = Self(c::AF_BRIDGE as _);
     /// `AF_ATMPVC`
@@ -124,6 +128,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const ATMPVC: Self = Self(c::AF_ATMPVC as _);
     /// `AF_X25`
@@ -147,6 +152,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const ROSE: Self = Self(c::AF_ROSE as _);
     /// `AF_DECnet`
@@ -162,6 +168,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const NETBEUI: Self = Self(c::AF_NETBEUI as _);
     /// `AF_SECURITY`
@@ -174,6 +181,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const SECURITY: Self = Self(c::AF_SECURITY as _);
     /// `AF_KEY`
@@ -208,6 +216,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const ASH: Self = Self(c::AF_ASH as _);
     /// `AF_ECONET`
@@ -220,6 +229,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const ECONET: Self = Self(c::AF_ECONET as _);
     /// `AF_ATMSVC`
@@ -232,6 +242,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const ATMSVC: Self = Self(c::AF_ATMSVC as _);
     /// `AF_RDS`
@@ -244,6 +255,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const RDS: Self = Self(c::AF_RDS as _);
     /// `AF_SNA`
@@ -257,6 +269,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const IRDA: Self = Self(c::AF_IRDA as _);
     /// `AF_PPPOX`
@@ -269,6 +282,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const PPPOX: Self = Self(c::AF_PPPOX as _);
     /// `AF_WANPIPE`
@@ -281,6 +295,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const WANPIPE: Self = Self(c::AF_WANPIPE as _);
     /// `AF_LLC`
@@ -293,6 +308,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const LLC: Self = Self(c::AF_LLC as _);
     /// `AF_CAN`
@@ -305,6 +321,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const CAN: Self = Self(c::AF_CAN as _);
     /// `AF_TIPC`
@@ -317,10 +334,11 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const TIPC: Self = Self(c::AF_TIPC as _);
     /// `AF_BLUETOOTH`
-    #[cfg(not(any(windows, target_os = "illumos", target_os = "ios", target_os = "macos")))]
+    #[cfg(not(any(windows, target_os = "illumos", target_os = "ios", target_os = "macos", target_os = "solaris")))]
     pub const BLUETOOTH: Self = Self(c::AF_BLUETOOTH as _);
     /// `AF_IUCV`
     #[cfg(not(any(
@@ -332,6 +350,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const IUCV: Self = Self(c::AF_IUCV as _);
     /// `AF_RXRPC`
@@ -344,10 +363,11 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const RXRPC: Self = Self(c::AF_RXRPC as _);
     /// `AF_ISDN`
-    #[cfg(not(any(windows, target_os = "illumos")))]
+    #[cfg(not(any(windows, target_os = "illumos", target_os = "solaris")))]
     pub const ISDN: Self = Self(c::AF_ISDN as _);
     /// `AF_PHONET`
     #[cfg(not(any(
@@ -359,6 +379,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const PHONET: Self = Self(c::AF_PHONET as _);
     /// `AF_IEEE802154`
@@ -371,6 +392,7 @@ impl AddressFamily {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const IEEE802154: Self = Self(c::AF_IEEE802154 as _);
 
@@ -403,26 +425,26 @@ impl Protocol {
     /// `IPPROTO_ICMP`
     pub const ICMP: Self = Self(c::IPPROTO_ICMP as _);
     /// `IPPROTO_IGMP`
-    #[cfg(not(target_os = "illumos"))]
+    #[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
     pub const IGMP: Self = Self(c::IPPROTO_IGMP as _);
     /// `IPPROTO_IPIP`
-    #[cfg(not(any(windows, target_os = "illumos")))]
+    #[cfg(not(any(windows, target_os = "illumos", target_os = "solaris")))]
     pub const IPIP: Self = Self(c::IPPROTO_IPIP as _);
     /// `IPPROTO_TCP`
     pub const TCP: Self = Self(c::IPPROTO_TCP as _);
     /// `IPPROTO_EGP`
-    #[cfg(not(target_os = "illumos"))]
+    #[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
     pub const EGP: Self = Self(c::IPPROTO_EGP as _);
     /// `IPPROTO_PUP`
-    #[cfg(not(target_os = "illumos"))]
+    #[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
     pub const PUP: Self = Self(c::IPPROTO_PUP as _);
     /// `IPPROTO_UDP`
     pub const UDP: Self = Self(c::IPPROTO_UDP as _);
     /// `IPPROTO_IDP`
-    #[cfg(not(target_os = "illumos"))]
+    #[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
     pub const IDP: Self = Self(c::IPPROTO_IDP as _);
     /// `IPPROTO_TP`
-    #[cfg(not(any(windows, target_os = "illumos")))]
+    #[cfg(not(any(windows, target_os = "illumos", target_os = "solaris")))]
     pub const TP: Self = Self(c::IPPROTO_TP as _);
     /// `IPPROTO_DCCP`
     #[cfg(not(any(
@@ -432,21 +454,22 @@ impl Protocol {
         target_os = "ios",
         target_os = "macos",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const DCCP: Self = Self(c::IPPROTO_DCCP as _);
     /// `IPPROTO_IPV6`
     pub const IPV6: Self = Self(c::IPPROTO_IPV6 as _);
     /// `IPPROTO_RSVP`
-    #[cfg(not(any(windows, target_os = "illumos")))]
+    #[cfg(not(any(windows, target_os = "illumos", target_os = "solaris")))]
     pub const RSVP: Self = Self(c::IPPROTO_RSVP as _);
     /// `IPPROTO_GRE`
-    #[cfg(not(any(windows, target_os = "illumos")))]
+    #[cfg(not(any(windows, target_os = "illumos", target_os = "solaris")))]
     pub const GRE: Self = Self(c::IPPROTO_GRE as _);
     /// `IPPROTO_ESP`
-    #[cfg(not(target_os = "illumos"))]
+    #[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
     pub const ESP: Self = Self(c::IPPROTO_ESP as _);
     /// `IPPROTO_AH`
-    #[cfg(not(target_os = "illumos"))]
+    #[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
     pub const AH: Self = Self(c::IPPROTO_AH as _);
     /// `IPPROTO_MTP`
     #[cfg(not(any(
@@ -454,6 +477,7 @@ impl Protocol {
         target_os = "illumos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const MTP: Self = Self(c::IPPROTO_MTP as _);
     /// `IPPROTO_BEETPH`
@@ -466,13 +490,14 @@ impl Protocol {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const BEETPH: Self = Self(c::IPPROTO_BEETPH as _);
     /// `IPPROTO_ENCAP`
-    #[cfg(not(any(windows, target_os = "illumos")))]
+    #[cfg(not(any(windows, target_os = "illumos", target_os = "solaris")))]
     pub const ENCAP: Self = Self(c::IPPROTO_ENCAP as _);
     /// `IPPROTO_PIM`
-    #[cfg(not(target_os = "illumos"))]
+    #[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
     pub const PIM: Self = Self(c::IPPROTO_PIM as _);
     /// `IPPROTO_COMP`
     #[cfg(not(any(
@@ -484,10 +509,11 @@ impl Protocol {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const COMP: Self = Self(c::IPPROTO_COMP as _);
     /// `IPPROTO_SCTP`
-    #[cfg(not(any(target_os = "dragonfly", target_os = "illumos", target_os = "openbsd")))]
+    #[cfg(not(any(target_os = "dragonfly", target_os = "illumos", target_os = "openbsd", target_os = "solaris")))]
     pub const SCTP: Self = Self(c::IPPROTO_SCTP as _);
     /// `IPPROTO_UDPLITE`
     #[cfg(not(any(
@@ -498,6 +524,7 @@ impl Protocol {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const UDPLITE: Self = Self(c::IPPROTO_UDPLITE as _);
     /// `IPPROTO_MPLS`
@@ -508,6 +535,7 @@ impl Protocol {
         target_os = "ios",
         target_os = "macos",
         target_os = "netbsd",
+        target_os = "solaris",
     )))]
     pub const MPLS: Self = Self(c::IPPROTO_MPLS as _);
     /// `IPPROTO_RAW`
@@ -525,10 +553,11 @@ impl Protocol {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const MPTCP: Self = Self(c::IPPROTO_MPTCP as _);
     /// `IPPROTO_FRAGMENT`
-    #[cfg(not(target_os = "illumos"))]
+    #[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
     pub const FRAGMENT: Self = Self(c::IPPROTO_FRAGMENT as _);
     /// `IPPROTO_ICMPV6`
     pub const ICMPV6: Self = Self(c::IPPROTO_ICMPV6 as _);
@@ -541,10 +570,11 @@ impl Protocol {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     pub const MH: Self = Self(c::IPPROTO_MH as _);
     /// `IPPROTO_ROUTING`
-    #[cfg(not(target_os = "illumos"))]
+    #[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
     pub const ROUTING: Self = Self(c::IPPROTO_ROUTING as _);
 
     /// Constructs a `Protocol` from a raw integer.
diff --git a/src/backend/libc/offset.rs b/src/backend/libc/offset.rs
index beb16d918..028cb9939 100644
--- a/src/backend/libc/offset.rs
+++ b/src/backend/libc/offset.rs
@@ -176,6 +176,7 @@ pub(super) use c::fallocate64 as libc_fallocate;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub(super) use c::posix_fadvise as libc_posix_fadvise;
 #[cfg(any(
@@ -292,6 +293,7 @@ mod readwrite_pv64 {
     target_os = "linux",
     target_os = "macos",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub(super) use c::{preadv as libc_preadv, pwritev as libc_pwritev};
 #[cfg(target_os = "android")]
@@ -335,6 +337,7 @@ pub(super) use readwrite_pv::{preadv as libc_preadv, pwritev as libc_pwritev};
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub(super) use c::posix_fallocate as libc_posix_fallocate;
 #[cfg(any(target_os = "l4re"))]
@@ -348,6 +351,7 @@ pub(super) use c::posix_fallocate64 as libc_posix_fallocate;
     target_os = "l4re",
     target_os = "netbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 pub(super) use {c::fstatfs as libc_fstatfs, c::statfs as libc_statfs};
@@ -359,6 +363,7 @@ pub(super) use {c::fstatfs as libc_fstatfs, c::statfs as libc_statfs};
     target_os = "linux",
     target_os = "l4re",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 pub(super) use {c::fstatvfs as libc_fstatvfs, c::statvfs as libc_statvfs};
diff --git a/src/backend/libc/process/types.rs b/src/backend/libc/process/types.rs
index 60d629d81..e9055c03a 100644
--- a/src/backend/libc/process/types.rs
+++ b/src/backend/libc/process/types.rs
@@ -56,15 +56,20 @@ pub enum Resource {
     /// `RLIMIT_CORE`
     Core = c::RLIMIT_CORE as c::c_int,
     /// `RLIMIT_RSS`
-    #[cfg(not(any(target_os = "illumos", target_os = "ios", target_os = "macos")))]
+    #[cfg(not(any(
+        target_os = "illumos",
+        target_os = "ios",
+        target_os = "macos",
+        target_os = "solaris",
+    )))]
     Rss = c::RLIMIT_RSS as c::c_int,
     /// `RLIMIT_NPROC`
-    #[cfg(not(target_os = "illumos"))]
+    #[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
     Nproc = c::RLIMIT_NPROC as c::c_int,
     /// `RLIMIT_NOFILE`
     Nofile = c::RLIMIT_NOFILE as c::c_int,
     /// `RLIMIT_MEMLOCK`
-    #[cfg(not(target_os = "illumos"))]
+    #[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
     Memlock = c::RLIMIT_MEMLOCK as c::c_int,
     /// `RLIMIT_AS`
     #[cfg(not(target_os = "openbsd"))]
@@ -78,6 +83,7 @@ pub enum Resource {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     Locks = c::RLIMIT_LOCKS as c::c_int,
     /// `RLIMIT_SIGPENDING`
@@ -89,6 +95,7 @@ pub enum Resource {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     Sigpending = c::RLIMIT_SIGPENDING as c::c_int,
     /// `RLIMIT_MSGQUEUE`
@@ -100,6 +107,7 @@ pub enum Resource {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     Msgqueue = c::RLIMIT_MSGQUEUE as c::c_int,
     /// `RLIMIT_NICE`
@@ -111,6 +119,7 @@ pub enum Resource {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     Nice = c::RLIMIT_NICE as c::c_int,
     /// `RLIMIT_RTPRIO`
@@ -122,6 +131,7 @@ pub enum Resource {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     Rtprio = c::RLIMIT_RTPRIO as c::c_int,
     /// `RLIMIT_RTTIME`
@@ -135,6 +145,7 @@ pub enum Resource {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
     )))]
     Rttime = c::RLIMIT_RTTIME as c::c_int,
 }
@@ -197,6 +208,7 @@ pub enum Signal {
         target_os = "macos",
         target_os = "netbsd",
         target_os = "openbsd",
+        target_os = "solaris",
         all(
             any(target_os = "android", target_os = "linux"),
             any(target_arch = "mips", target_arch = "mips64"),
@@ -274,6 +286,7 @@ impl Signal {
                 target_os = "macos",
                 target_os = "netbsd",
                 target_os = "openbsd",
+                target_os = "solaris",
                 all(
                     any(target_os = "android", target_os = "linux"),
                     any(target_arch = "mips", target_arch = "mips64"),
diff --git a/src/backend/libc/termios/types.rs b/src/backend/libc/termios/types.rs
index 7e6728755..43da9e182 100644
--- a/src/backend/libc/termios/types.rs
+++ b/src/backend/libc/termios/types.rs
@@ -100,6 +100,7 @@ pub const VMIN: usize = c::VMIN as usize;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub const VSWTC: usize = c::VSWTC as usize;
 
@@ -197,6 +198,7 @@ pub const IMAXBEL: c::c_uint = c::IMAXBEL;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const IUTF8: c::c_uint = c::IUTF8;
 
@@ -263,6 +265,7 @@ pub const OFDEL: c::c_uint = c::OFDEL;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const NLDLY: c::c_uint = c::NLDLY;
 
@@ -277,6 +280,7 @@ pub const NLDLY: c::c_uint = c::NLDLY;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const NL0: c::c_uint = c::NL0;
 
@@ -291,6 +295,7 @@ pub const NL0: c::c_uint = c::NL0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const NL1: c::c_uint = c::NL1;
 
@@ -304,6 +309,7 @@ pub const NL1: c::c_uint = c::NL1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const CRDLY: c::c_uint = c::CRDLY;
 
@@ -318,6 +324,7 @@ pub const CRDLY: c::c_uint = c::CRDLY;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const CR0: c::c_uint = c::CR0;
 
@@ -334,6 +341,7 @@ pub const CR0: c::c_uint = c::CR0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const CR1: c::c_uint = c::CR1;
 
@@ -350,6 +358,7 @@ pub const CR1: c::c_uint = c::CR1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const CR2: c::c_uint = c::CR2;
 
@@ -366,6 +375,7 @@ pub const CR2: c::c_uint = c::CR2;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const CR3: c::c_uint = c::CR3;
 
@@ -377,6 +387,7 @@ pub const CR3: c::c_uint = c::CR3;
     target_os = "openbsd",
     target_os = "illumos",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const TABDLY: c::c_uint = c::TABDLY;
 
@@ -389,6 +400,7 @@ pub const TABDLY: c::c_uint = c::TABDLY;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const TAB0: c::c_uint = c::TAB0;
 
@@ -405,6 +417,7 @@ pub const TAB0: c::c_uint = c::TAB0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const TAB1: c::c_uint = c::TAB1;
 
@@ -421,6 +434,7 @@ pub const TAB1: c::c_uint = c::TAB1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const TAB2: c::c_uint = c::TAB2;
 
@@ -435,6 +449,7 @@ pub const TAB2: c::c_uint = c::TAB2;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const TAB3: c::c_uint = c::TAB3;
 
@@ -448,6 +463,7 @@ pub const TAB3: c::c_uint = c::TAB3;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const BSDLY: c::c_uint = c::BSDLY;
 
@@ -462,6 +478,7 @@ pub const BSDLY: c::c_uint = c::BSDLY;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const BS0: c::c_uint = c::BS0;
 
@@ -478,6 +495,7 @@ pub const BS0: c::c_uint = c::BS0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const BS1: c::c_uint = c::BS1;
 
@@ -492,6 +510,7 @@ pub const BS1: c::c_uint = c::BS1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const FFDLY: c::c_uint = c::FFDLY;
 
@@ -506,6 +525,7 @@ pub const FFDLY: c::c_uint = c::FFDLY;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const FF0: c::c_uint = c::FF0;
 
@@ -522,6 +542,7 @@ pub const FF0: c::c_uint = c::FF0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const FF1: c::c_uint = c::FF1;
 
@@ -536,6 +557,7 @@ pub const FF1: c::c_uint = c::FF1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const VTDLY: c::c_uint = c::VTDLY;
 
@@ -550,6 +572,7 @@ pub const VTDLY: c::c_uint = c::VTDLY;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const VT0: c::c_uint = c::VT0;
 
@@ -566,6 +589,7 @@ pub const VT0: c::c_uint = c::VT0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const VT1: c::c_uint = c::VT1;
 
@@ -639,6 +663,7 @@ pub const B460800: Speed = c::B460800;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub const B500000: Speed = c::B500000;
 
@@ -651,6 +676,7 @@ pub const B500000: Speed = c::B500000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub const B576000: Speed = c::B576000;
 
@@ -666,6 +692,7 @@ pub const B921600: Speed = c::B921600;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub const B1000000: Speed = c::B1000000;
 
@@ -677,6 +704,7 @@ pub const B1000000: Speed = c::B1000000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub const B1152000: Speed = c::B1152000;
 
@@ -688,6 +716,7 @@ pub const B1152000: Speed = c::B1152000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub const B1500000: Speed = c::B1500000;
 
@@ -699,6 +728,7 @@ pub const B1500000: Speed = c::B1500000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub const B2000000: Speed = c::B2000000;
 
@@ -710,6 +740,7 @@ pub const B2000000: Speed = c::B2000000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub const B2500000: Speed = c::B2500000;
 
@@ -721,6 +752,7 @@ pub const B2500000: Speed = c::B2500000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub const B3000000: Speed = c::B3000000;
 
@@ -732,6 +764,7 @@ pub const B3000000: Speed = c::B3000000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub const B3500000: Speed = c::B3500000;
 
@@ -743,6 +776,7 @@ pub const B3500000: Speed = c::B3500000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub const B4000000: Speed = c::B4000000;
 
@@ -833,6 +867,7 @@ pub const IEXTEN: c::c_uint = c::IEXTEN;
     target_os = "ios",
     target_os = "macos",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const EXTA: c::c_uint = c::EXTA;
 
@@ -843,6 +878,7 @@ pub const EXTA: c::c_uint = c::EXTA;
     target_os = "ios",
     target_os = "macos",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const EXTB: c::c_uint = c::EXTB;
 
@@ -868,6 +904,7 @@ pub const CBAUD: c::c_uint = c::CBAUD;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const CBAUDEX: c::c_uint = c::CBAUDEX;
 
@@ -902,6 +939,7 @@ pub const CIBAUD: c::tcflag_t = 0o77600000;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const CMSPAR: c::c_uint = c::CMSPAR;
 
@@ -947,5 +985,6 @@ pub const EXTPROC: c::c_uint = c::EXTPROC;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub const XTABS: c::c_uint = c::XTABS;
diff --git a/src/backend/libc/time/types.rs b/src/backend/libc/time/types.rs
index 4aa2b22e5..080f64431 100644
--- a/src/backend/libc/time/types.rs
+++ b/src/backend/libc/time/types.rs
@@ -132,6 +132,7 @@ pub enum ClockId {
         target_os = "netbsd",
         target_os = "openbsd",
         target_os = "redox",
+        target_os = "solaris",
     )))]
     ProcessCPUTime = c::CLOCK_PROCESS_CPUTIME_ID,
 
@@ -141,6 +142,7 @@ pub enum ClockId {
         target_os = "netbsd",
         target_os = "openbsd",
         target_os = "redox",
+        target_os = "solaris",
     )))]
     ThreadCPUTime = c::CLOCK_THREAD_CPUTIME_ID,
 
diff --git a/src/fs/abs.rs b/src/fs/abs.rs
index 24d1ab711..d624e4344 100644
--- a/src/fs/abs.rs
+++ b/src/fs/abs.rs
@@ -4,10 +4,16 @@
     target_os = "illumos",
     target_os = "netbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 use crate::fs::StatFs;
-#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi")))]
+#[cfg(not(any(
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+    target_os = "wasi",
+)))]
 use {
     crate::fs::StatVfs,
     crate::{backend, io, path},
@@ -26,6 +32,7 @@ use {
     target_os = "illumos",
     target_os = "netbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 #[inline]
@@ -46,7 +53,12 @@ pub fn statfs<P: path::Arg>(path: P) -> io::Result<StatFs> {
 ///
 /// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/statvfs.html
 /// [Linux]: https://man7.org/linux/man-pages/man2/statvfs.2.html
-#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi")))]
+#[cfg(not(any(
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+    target_os = "wasi",
+)))]
 #[inline]
 pub fn statvfs<P: path::Arg>(path: P) -> io::Result<StatVfs> {
     path.into_with_c_str(backend::fs::syscalls::statvfs)
diff --git a/src/fs/at.rs b/src/fs/at.rs
index 67310731b..921754a04 100644
--- a/src/fs/at.rs
+++ b/src/fs/at.rs
@@ -7,7 +7,7 @@
 
 use crate::fd::OwnedFd;
 use crate::ffi::{CStr, CString};
-#[cfg(not(target_os = "illumos"))]
+#[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
 use crate::fs::Access;
 #[cfg(any(target_os = "ios", target_os = "macos"))]
 use crate::fs::CloneFlags;
@@ -272,7 +272,7 @@ pub fn statat<P: path::Arg, Fd: AsFd>(dirfd: Fd, path: P, flags: AtFlags) -> io:
 ///
 /// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/faccessat.html
 /// [Linux]: https://man7.org/linux/man-pages/man2/faccessat.2.html
-#[cfg(not(target_os = "illumos"))]
+#[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
 #[inline]
 #[doc(alias = "faccessat")]
 pub fn accessat<P: path::Arg, Fd: AsFd>(
diff --git a/src/fs/fd.rs b/src/fs/fd.rs
index b92266585..08f99cdf7 100644
--- a/src/fs/fd.rs
+++ b/src/fs/fd.rs
@@ -8,7 +8,7 @@ use crate::process::{Gid, Uid};
 use crate::{backend, io};
 use backend::fd::{AsFd, BorrowedFd};
 
-#[cfg(not(target_os = "wasi"))]
+#[cfg(not(any(target_os = "solaris", target_os = "wasi")))]
 pub use backend::fs::types::FlockOperation;
 
 #[cfg(not(any(
@@ -17,6 +17,7 @@ pub use backend::fs::types::FlockOperation;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::fs::types::FallocateFlags;
 
@@ -26,11 +27,17 @@ pub use backend::fs::types::Stat;
     target_os = "illumos",
     target_os = "netbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 pub use backend::fs::types::StatFs;
 
-#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi")))]
+#[cfg(not(any(
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+    target_os = "wasi",
+)))]
 pub use backend::fs::types::{StatVfs, StatVfsMountFlags};
 
 #[cfg(any(target_os = "android", target_os = "linux"))]
@@ -160,6 +167,7 @@ pub fn fstat<Fd: AsFd>(fd: Fd) -> io::Result<Stat> {
     target_os = "illumos",
     target_os = "netbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 #[inline]
@@ -181,7 +189,12 @@ pub fn fstatfs<Fd: AsFd>(fd: Fd) -> io::Result<StatFs> {
 ///
 /// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/fstatvfs.html
 /// [Linux]: https://man7.org/linux/man-pages/man2/fstatvfs.2.html
-#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi")))]
+#[cfg(not(any(
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+    target_os = "wasi",
+)))]
 #[inline]
 pub fn fstatvfs<Fd: AsFd>(fd: Fd) -> io::Result<StatVfs> {
     backend::fs::syscalls::fstatvfs(fd.as_fd())
@@ -221,6 +234,7 @@ pub fn futimens<Fd: AsFd>(fd: Fd, times: &Timestamps) -> io::Result<()> {
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))] // not implemented in libc for netbsd yet
 #[inline]
 #[doc(alias = "posix_fallocate")]
@@ -320,7 +334,7 @@ pub fn ftruncate<Fd: AsFd>(fd: Fd, length: u64) -> io::Result<()> {
 ///  - [Linux]
 ///
 /// [Linux]: https://man7.org/linux/man-pages/man2/flock.2.html
-#[cfg(not(target_os = "wasi"))]
+#[cfg(not(any(target_os = "solaris", target_os = "wasi")))]
 #[inline]
 pub fn flock<Fd: AsFd>(fd: Fd, operation: FlockOperation) -> io::Result<()> {
     backend::fs::syscalls::flock(fd.as_fd(), operation)
diff --git a/src/fs/mod.rs b/src/fs/mod.rs
index 9faded184..54aa0ea73 100644
--- a/src/fs/mod.rs
+++ b/src/fs/mod.rs
@@ -28,6 +28,7 @@ mod dir;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 mod fadvise;
 pub(crate) mod fcntl;
@@ -48,6 +49,7 @@ mod getpath;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 mod makedev;
@@ -65,14 +67,20 @@ mod statx;
     target_os = "illumos",
     target_os = "netbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 #[cfg(feature = "fs")]
 pub use abs::statfs;
-#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi")))]
+#[cfg(not(any(
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+    target_os = "wasi",
+)))]
 #[cfg(feature = "fs")]
 pub use abs::statvfs;
-#[cfg(not(any(target_os = "illumos", target_os = "redox")))]
+#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "solaris",)))]
 #[cfg(feature = "fs")]
 pub use at::accessat;
 #[cfg(any(target_os = "ios", target_os = "macos"))]
@@ -132,6 +140,7 @@ pub use dir::{Dir, DirEntry};
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use fadvise::{fadvise, Advice};
 #[cfg(not(target_os = "wasi"))]
@@ -164,19 +173,28 @@ pub use fd::fdatasync;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use fd::{fallocate, FallocateFlags};
 #[cfg(not(target_os = "wasi"))]
-pub use fd::{fchmod, fchown, flock, FlockOperation};
+pub use fd::{fchmod, fchown};
+#[cfg(not(any(target_os = "solaris", target_os = "wasi")))]
+pub use fd::{flock, FlockOperation};
 pub use fd::{fstat, fsync, ftruncate, futimens, is_file_read_write, seek, tell, Stat, Timestamps};
 #[cfg(not(any(
     target_os = "illumos",
     target_os = "netbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 pub use fd::{fstatfs, StatFs};
-#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi")))]
+#[cfg(not(any(
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+    target_os = "wasi",
+)))]
 pub use fd::{fstatvfs, StatVfs, StatVfsMountFlags};
 #[cfg(any(target_os = "android", target_os = "linux"))]
 pub use fd::{FsWord, NFS_SUPER_MAGIC, PROC_SUPER_MAGIC};
@@ -192,6 +210,7 @@ pub use getpath::getpath;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 pub use makedev::{major, makedev, minor};
diff --git a/src/io/mod.rs b/src/io/mod.rs
index 4f5d6830e..4d182226b 100644
--- a/src/io/mod.rs
+++ b/src/io/mod.rs
@@ -50,6 +50,7 @@ pub use pipe::pipe;
     windows,
     target_os = "illumos",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 pub use pipe::PIPE_BUF;
@@ -60,7 +61,7 @@ pub use poll::{poll, PollFd, PollFlags};
 pub use procfs::{proc_self_fd, proc_self_fdinfo_fd, proc_self_maps, proc_self_pagemap};
 #[cfg(not(windows))]
 pub use read_write::{pread, pwrite, read, readv, write, writev, IoSlice, IoSliceMut};
-#[cfg(not(any(windows, target_os = "redox")))]
+#[cfg(not(any(windows, target_os = "redox", target_os = "solaris")))]
 pub use read_write::{preadv, pwritev};
 #[cfg(any(target_os = "android", target_os = "linux"))]
 pub use read_write::{preadv2, pwritev2, ReadWriteFlags};
diff --git a/src/io/pipe.rs b/src/io/pipe.rs
index 11ff623d0..b87550162 100644
--- a/src/io/pipe.rs
+++ b/src/io/pipe.rs
@@ -17,6 +17,7 @@ pub use backend::io::types::PipeFlags;
     windows,
     target_os = "illumos",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 pub const PIPE_BUF: usize = backend::io::types::PIPE_BUF;
diff --git a/src/io/read_write.rs b/src/io/read_write.rs
index c9268d8a9..aa2840fc6 100644
--- a/src/io/read_write.rs
+++ b/src/io/read_write.rs
@@ -112,7 +112,7 @@ pub fn writev<Fd: AsFd>(fd: Fd, bufs: &[IoSlice<'_>]) -> io::Result<usize> {
 ///  - [Linux]
 ///
 /// [Linux]: https://man7.org/linux/man-pages/man2/preadv.2.html
-#[cfg(not(target_os = "redox"))]
+#[cfg(not(any(target_os = "redox", target_os = "solaris")))]
 #[inline]
 pub fn preadv<Fd: AsFd>(fd: Fd, bufs: &mut [IoSliceMut<'_>], offset: u64) -> io::Result<usize> {
     backend::io::syscalls::preadv(fd.as_fd(), bufs, offset)
@@ -125,7 +125,7 @@ pub fn preadv<Fd: AsFd>(fd: Fd, bufs: &mut [IoSliceMut<'_>], offset: u64) -> io:
 ///  - [Linux]
 ///
 /// [Linux]: https://man7.org/linux/man-pages/man2/pwritev.2.html
-#[cfg(not(target_os = "redox"))]
+#[cfg(not(any(target_os = "redox", target_os = "solaris")))]
 #[inline]
 pub fn pwritev<Fd: AsFd>(fd: Fd, bufs: &[IoSlice<'_>], offset: u64) -> io::Result<usize> {
     backend::io::syscalls::pwritev(fd.as_fd(), bufs, offset)
diff --git a/src/termios/constants.rs b/src/termios/constants.rs
index c3b3687b6..38d9374f5 100644
--- a/src/termios/constants.rs
+++ b/src/termios/constants.rs
@@ -6,6 +6,7 @@ use crate::backend;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::B1000000;
 #[cfg(not(any(
@@ -15,6 +16,7 @@ pub use backend::termios::types::B1000000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::B1152000;
 #[cfg(not(any(
@@ -24,6 +26,7 @@ pub use backend::termios::types::B1152000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::B1500000;
 #[cfg(not(any(
@@ -33,6 +36,7 @@ pub use backend::termios::types::B1500000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::B2000000;
 #[cfg(not(any(
@@ -42,6 +46,7 @@ pub use backend::termios::types::B2000000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::B2500000;
 #[cfg(not(any(
@@ -51,6 +56,7 @@ pub use backend::termios::types::B2500000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::B3000000;
 #[cfg(not(any(
@@ -60,6 +66,7 @@ pub use backend::termios::types::B3000000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::B3500000;
 #[cfg(not(any(
@@ -69,6 +76,7 @@ pub use backend::termios::types::B3500000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::B4000000;
 #[cfg(not(any(target_os = "ios", target_os = "macos", target_os = "openbsd")))]
@@ -81,6 +89,7 @@ pub use backend::termios::types::B460800;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::B500000;
 #[cfg(not(any(
@@ -91,6 +100,7 @@ pub use backend::termios::types::B500000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::B576000;
 #[cfg(not(any(target_os = "ios", target_os = "macos", target_os = "openbsd")))]
@@ -107,6 +117,7 @@ pub use backend::termios::types::BRKINT;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::BS0;
 #[cfg(not(any(
@@ -121,6 +132,7 @@ pub use backend::termios::types::BS0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::BS1;
 #[cfg(not(any(
@@ -132,6 +144,7 @@ pub use backend::termios::types::BS1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::BSDLY;
 #[cfg(not(any(
@@ -153,6 +166,7 @@ pub use backend::termios::types::CBAUD;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::CBAUDEX;
 #[cfg(not(any(
@@ -178,6 +192,7 @@ pub use backend::termios::types::CLOCAL;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::CMSPAR;
 #[cfg(not(any(
@@ -190,6 +205,7 @@ pub use backend::termios::types::CMSPAR;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::CR0;
 #[cfg(not(any(
@@ -204,6 +220,7 @@ pub use backend::termios::types::CR0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::CR1;
 #[cfg(not(any(
@@ -218,6 +235,7 @@ pub use backend::termios::types::CR1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::CR2;
 #[cfg(not(any(
@@ -232,6 +250,7 @@ pub use backend::termios::types::CR2;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::CR3;
 #[cfg(not(any(
@@ -243,6 +262,7 @@ pub use backend::termios::types::CR3;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::CRDLY;
 #[cfg(not(any(target_os = "ios", target_os = "macos")))]
@@ -281,6 +301,7 @@ pub use backend::termios::types::ECHOPRT;
     target_os = "ios",
     target_os = "macos",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::EXTA;
 #[cfg(not(any(
@@ -289,6 +310,7 @@ pub use backend::termios::types::EXTA;
     target_os = "ios",
     target_os = "macos",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::EXTB;
 #[cfg(not(any(target_os = "ios", target_os = "macos", target_os = "redox")))]
@@ -303,6 +325,7 @@ pub use backend::termios::types::EXTPROC;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::FF0;
 #[cfg(not(any(
@@ -317,6 +340,7 @@ pub use backend::termios::types::FF0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::FF1;
 #[cfg(not(any(
@@ -329,6 +353,7 @@ pub use backend::termios::types::FF1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::FFDLY;
 #[cfg(not(any(target_os = "ios", target_os = "macos", target_os = "redox")))]
@@ -373,6 +398,7 @@ pub use backend::termios::types::IUCLC;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::IUTF8;
 #[cfg(not(any(target_os = "ios", target_os = "macos", target_os = "redox")))]
@@ -391,6 +417,7 @@ pub use backend::termios::types::IXON;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::NL0;
 #[cfg(not(any(
@@ -403,6 +430,7 @@ pub use backend::termios::types::NL0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::NL1;
 #[cfg(not(any(
@@ -414,6 +442,7 @@ pub use backend::termios::types::NL1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::NLDLY;
 #[cfg(not(any(target_os = "ios", target_os = "macos")))]
@@ -471,6 +500,7 @@ pub use backend::termios::types::PENDIN;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::TAB0;
 #[cfg(not(any(
@@ -485,6 +515,7 @@ pub use backend::termios::types::TAB0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::TAB1;
 #[cfg(not(any(
@@ -499,6 +530,7 @@ pub use backend::termios::types::TAB1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::TAB2;
 #[cfg(not(any(
@@ -511,6 +543,7 @@ pub use backend::termios::types::TAB2;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::TAB3;
 #[cfg(not(any(
@@ -520,6 +553,7 @@ pub use backend::termios::types::TAB3;
     target_os = "openbsd",
     target_os = "illumos",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::TABDLY;
 #[cfg(not(any(target_os = "ios", target_os = "macos")))]
@@ -532,6 +566,7 @@ pub use backend::termios::types::TOSTOP;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::VSWTC;
 #[cfg(not(any(
@@ -544,6 +579,7 @@ pub use backend::termios::types::VSWTC;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::VT0;
 #[cfg(not(any(
@@ -558,6 +594,7 @@ pub use backend::termios::types::VT0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::VT1;
 #[cfg(not(any(
@@ -570,6 +607,7 @@ pub use backend::termios::types::VT1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::VTDLY;
 #[cfg(any(linux_raw, all(libc, any(target_arch = "s390x", target_os = "haiku"))))]
@@ -583,6 +621,7 @@ pub use backend::termios::types::XCASE;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use backend::termios::types::XTABS;
 pub use backend::termios::types::{
@@ -628,6 +667,7 @@ pub fn speed_value(speed: backend::termios::types::Speed) -> Option<u32> {
             target_os = "macos",
             target_os = "netbsd",
             target_os = "openbsd",
+            target_os = "solaris",
         )))]
         backend::termios::types::B500000 => Some(500_000),
         #[cfg(not(any(
@@ -638,6 +678,7 @@ pub fn speed_value(speed: backend::termios::types::Speed) -> Option<u32> {
             target_os = "macos",
             target_os = "netbsd",
             target_os = "openbsd",
+            target_os = "solaris",
         )))]
         backend::termios::types::B576000 => Some(576_000),
         #[cfg(not(any(target_os = "ios", target_os = "macos", target_os = "openbsd")))]
@@ -649,6 +690,7 @@ pub fn speed_value(speed: backend::termios::types::Speed) -> Option<u32> {
             target_os = "macos",
             target_os = "netbsd",
             target_os = "openbsd",
+            target_os = "solaris",
         )))]
         backend::termios::types::B1000000 => Some(1_000_000),
         #[cfg(not(any(
@@ -658,6 +700,7 @@ pub fn speed_value(speed: backend::termios::types::Speed) -> Option<u32> {
             target_os = "macos",
             target_os = "netbsd",
             target_os = "openbsd",
+            target_os = "solaris",
         )))]
         backend::termios::types::B1152000 => Some(1_152_000),
         #[cfg(not(any(
@@ -667,6 +710,7 @@ pub fn speed_value(speed: backend::termios::types::Speed) -> Option<u32> {
             target_os = "macos",
             target_os = "netbsd",
             target_os = "openbsd",
+            target_os = "solaris",
         )))]
         backend::termios::types::B1500000 => Some(1_500_000),
         #[cfg(not(any(
@@ -676,6 +720,7 @@ pub fn speed_value(speed: backend::termios::types::Speed) -> Option<u32> {
             target_os = "macos",
             target_os = "netbsd",
             target_os = "openbsd",
+            target_os = "solaris",
         )))]
         backend::termios::types::B2000000 => Some(2_000_000),
         #[cfg(not(any(
@@ -685,6 +730,7 @@ pub fn speed_value(speed: backend::termios::types::Speed) -> Option<u32> {
             target_os = "macos",
             target_os = "netbsd",
             target_os = "openbsd",
+            target_os = "solaris",
         )))]
         backend::termios::types::B2500000 => Some(2_500_000),
         #[cfg(not(any(
@@ -694,6 +740,7 @@ pub fn speed_value(speed: backend::termios::types::Speed) -> Option<u32> {
             target_os = "macos",
             target_os = "netbsd",
             target_os = "openbsd",
+            target_os = "solaris",
         )))]
         backend::termios::types::B3000000 => Some(3_000_000),
         #[cfg(not(any(
@@ -703,6 +750,7 @@ pub fn speed_value(speed: backend::termios::types::Speed) -> Option<u32> {
             target_os = "macos",
             target_os = "netbsd",
             target_os = "openbsd",
+            target_os = "solaris",
         )))]
         backend::termios::types::B3500000 => Some(3_500_000),
         #[cfg(not(any(
@@ -712,6 +760,7 @@ pub fn speed_value(speed: backend::termios::types::Speed) -> Option<u32> {
             target_os = "macos",
             target_os = "netbsd",
             target_os = "openbsd",
+            target_os = "solaris",
         )))]
         backend::termios::types::B4000000 => Some(4_000_000),
         _ => None,
diff --git a/src/termios/mod.rs b/src/termios/mod.rs
index 79f2f6b38..1c6831077 100644
--- a/src/termios/mod.rs
+++ b/src/termios/mod.rs
@@ -14,6 +14,7 @@ pub use cf::{cfgetispeed, cfgetospeed, cfmakeraw, cfsetispeed, cfsetospeed, cfse
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use constants::B1000000;
 #[cfg(not(any(
@@ -23,6 +24,7 @@ pub use constants::B1000000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use constants::B1152000;
 #[cfg(not(any(
@@ -32,6 +34,7 @@ pub use constants::B1152000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use constants::B1500000;
 #[cfg(not(any(
@@ -41,6 +44,7 @@ pub use constants::B1500000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use constants::B2000000;
 #[cfg(not(any(
@@ -50,6 +54,7 @@ pub use constants::B2000000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use constants::B2500000;
 #[cfg(not(any(
@@ -59,6 +64,7 @@ pub use constants::B2500000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use constants::B3000000;
 #[cfg(not(any(
@@ -68,6 +74,7 @@ pub use constants::B3000000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use constants::B3500000;
 #[cfg(not(any(
@@ -77,6 +84,7 @@ pub use constants::B3500000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use constants::B4000000;
 #[cfg(not(any(target_os = "ios", target_os = "macos", target_os = "openbsd")))]
@@ -89,6 +97,7 @@ pub use constants::B460800;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use constants::B500000;
 #[cfg(not(any(
@@ -99,6 +108,7 @@ pub use constants::B500000;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use constants::B576000;
 #[cfg(not(any(target_os = "ios", target_os = "macos", target_os = "openbsd")))]
@@ -115,6 +125,7 @@ pub use constants::BRKINT;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::BS0;
 #[cfg(not(any(
@@ -129,6 +140,7 @@ pub use constants::BS0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::BS1;
 #[cfg(not(any(
@@ -140,6 +152,7 @@ pub use constants::BS1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::BSDLY;
 #[cfg(not(any(
@@ -161,6 +174,7 @@ pub use constants::CBAUD;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::CBAUDEX;
 #[cfg(not(any(
@@ -186,6 +200,7 @@ pub use constants::CLOCAL;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::CMSPAR;
 #[cfg(not(any(
@@ -198,6 +213,7 @@ pub use constants::CMSPAR;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::CR0;
 #[cfg(not(any(
@@ -212,6 +228,7 @@ pub use constants::CR0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::CR1;
 #[cfg(not(any(
@@ -226,6 +243,7 @@ pub use constants::CR1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::CR2;
 #[cfg(not(any(
@@ -240,6 +258,7 @@ pub use constants::CR2;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::CR3;
 #[cfg(not(any(
@@ -251,6 +270,7 @@ pub use constants::CR3;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::CRDLY;
 #[cfg(not(any(target_os = "ios", target_os = "macos")))]
@@ -289,6 +309,7 @@ pub use constants::ECHOPRT;
     target_os = "ios",
     target_os = "macos",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::EXTA;
 #[cfg(not(any(
@@ -297,6 +318,7 @@ pub use constants::EXTA;
     target_os = "ios",
     target_os = "macos",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::EXTB;
 #[cfg(not(any(target_os = "ios", target_os = "macos", target_os = "redox")))]
@@ -311,6 +333,7 @@ pub use constants::EXTPROC;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::FF0;
 #[cfg(not(any(
@@ -325,6 +348,7 @@ pub use constants::FF0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::FF1;
 #[cfg(not(any(
@@ -337,6 +361,7 @@ pub use constants::FF1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::FFDLY;
 #[cfg(not(any(target_os = "ios", target_os = "macos", target_os = "redox")))]
@@ -381,6 +406,7 @@ pub use constants::IUCLC;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::IUTF8;
 #[cfg(not(any(target_os = "ios", target_os = "macos", target_os = "redox")))]
@@ -399,6 +425,7 @@ pub use constants::IXON;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::NL0;
 #[cfg(not(any(
@@ -411,6 +438,7 @@ pub use constants::NL0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::NL1;
 #[cfg(not(any(
@@ -422,6 +450,7 @@ pub use constants::NL1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::NLDLY;
 #[cfg(not(any(target_os = "ios", target_os = "macos")))]
@@ -479,6 +508,7 @@ pub use constants::PENDIN;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::TAB0;
 #[cfg(not(any(
@@ -493,6 +523,7 @@ pub use constants::TAB0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::TAB1;
 #[cfg(not(any(
@@ -507,6 +538,7 @@ pub use constants::TAB1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::TAB2;
 #[cfg(not(any(
@@ -519,6 +551,7 @@ pub use constants::TAB2;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::TAB3;
 #[cfg(not(any(
@@ -528,6 +561,7 @@ pub use constants::TAB3;
     target_os = "openbsd",
     target_os = "illumos",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::TABDLY;
 #[cfg(not(any(target_os = "ios", target_os = "macos")))]
@@ -540,6 +574,7 @@ pub use constants::TOSTOP;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "solaris",
 )))]
 pub use constants::VSWTC;
 #[cfg(not(any(
@@ -552,6 +587,7 @@ pub use constants::VSWTC;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::VT0;
 #[cfg(not(any(
@@ -566,6 +602,7 @@ pub use constants::VT0;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::VT1;
 #[cfg(not(any(
@@ -578,6 +615,7 @@ pub use constants::VT1;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::VTDLY;
 #[cfg(any(linux_raw, all(libc, any(target_arch = "s390x", target_os = "haiku"))))]
@@ -591,6 +629,7 @@ pub use constants::XCASE;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 pub use constants::XTABS;
 pub use constants::{
diff --git a/tests/fs/file.rs b/tests/fs/file.rs
index aa9d761b6..d7cc29ede 100644
--- a/tests/fs/file.rs
+++ b/tests/fs/file.rs
@@ -1,7 +1,7 @@
 #[cfg(not(target_os = "redox"))]
 #[test]
 fn test_file() {
-    #[cfg(not(target_os = "illumos"))]
+    #[cfg(not(any(target_os = "illumos", target_os = "solaris")))]
     rustix::fs::accessat(
         rustix::fs::cwd(),
         "Cargo.toml",
@@ -48,6 +48,7 @@ fn test_file() {
         target_os = "netbsd",
         target_os = "openbsd",
         target_os = "redox",
+        target_os = "solaris",
     )))]
     rustix::fs::fadvise(&file, 0, 10, rustix::fs::Advice::Normal).unwrap();
 
@@ -68,6 +69,7 @@ fn test_file() {
         target_os = "illumos",
         target_os = "netbsd",
         target_os = "redox",
+        target_os = "solaris",
         target_os = "wasi",
     )))]
     {
@@ -75,7 +77,12 @@ fn test_file() {
         assert!(statfs.f_blocks > 0);
     }
 
-    #[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi")))]
+    #[cfg(not(any(
+        target_os = "illumos",
+        target_os = "redox",
+        target_os = "solaris",
+        target_os = "wasi",
+    )))]
     {
         let statvfs = rustix::fs::fstatvfs(&file).unwrap();
         assert!(statvfs.f_frsize > 0);
diff --git a/tests/fs/flock.rs b/tests/fs/flock.rs
index 1b7df6ffd..d26e1f6ab 100644
--- a/tests/fs/flock.rs
+++ b/tests/fs/flock.rs
@@ -1,4 +1,4 @@
-#[cfg(not(target_os = "redox"))]
+#[cfg(not(any(target_os = "redox", target_os = "solaris")))]
 #[test]
 fn test_flock() {
     use rustix::fs::{cwd, flock, openat, FlockOperation, Mode, OFlags};
diff --git a/tests/fs/invalid_offset.rs b/tests/fs/invalid_offset.rs
index 995e302a1..fc10734e6 100644
--- a/tests/fs/invalid_offset.rs
+++ b/tests/fs/invalid_offset.rs
@@ -38,6 +38,7 @@ fn invalid_offset_seek() {
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 #[test]
 fn invalid_offset_fallocate() {
@@ -66,6 +67,7 @@ fn invalid_offset_fallocate() {
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
 )))]
 #[test]
 fn invalid_offset_fadvise() {
diff --git a/tests/fs/main.rs b/tests/fs/main.rs
index 0ef54eb53..a0ac6e586 100644
--- a/tests/fs/main.rs
+++ b/tests/fs/main.rs
@@ -24,6 +24,7 @@ mod long_paths;
     target_os = "netbsd",
     target_os = "openbsd",
     target_os = "redox",
+    target_os = "solaris",
     target_os = "wasi",
 )))]
 mod makedev;
@@ -35,7 +36,12 @@ mod openat;
 mod openat2;
 mod readdir;
 mod renameat;
-#[cfg(not(any(target_os = "illumos", target_os = "redox", target_os = "wasi")))]
+#[cfg(not(any(
+    target_os = "illumos",
+    target_os = "redox",
+    target_os = "solaris",
+    target_os = "wasi",
+)))]
 mod statfs;
 #[cfg(any(target_os = "android", target_os = "linux"))]
 mod statx;
diff --git a/tests/fs/mknodat.rs b/tests/fs/mknodat.rs
index fa1c84f69..da4a934c2 100644
--- a/tests/fs/mknodat.rs
+++ b/tests/fs/mknodat.rs
@@ -12,7 +12,7 @@ fn test_mknodat() {
     let dir = openat(cwd(), tmp.path(), OFlags::RDONLY, Mode::empty()).unwrap();
 
     // Create a regular file. Not supported on FreeBSD or OpenBSD.
-    #[cfg(not(any(target_os = "freebsd", target_os = "openbsd")))]
+    #[cfg(not(any(target_os = "freebsd", target_os = "openbsd", target_os = "solaris")))]
     {
         mknodat(&dir, "foo", FileType::RegularFile, Mode::empty(), 0).unwrap();
         let stat = statat(&dir, "foo", AtFlags::empty()).unwrap();
diff --git a/tests/io/read_write.rs b/tests/io/read_write.rs
index 65186bf21..f1835a396 100644
--- a/tests/io/read_write.rs
+++ b/tests/io/read_write.rs
@@ -2,6 +2,7 @@
 use std::io::{IoSlice, IoSliceMut};
 
 #[cfg(feature = "fs")]
+#[cfg(not(target_os = "solaris"))] // no preadv/pwritev
 #[test]
 fn test_readwrite_pv() {
     use rustix::fs::{cwd, openat, Mode, OFlags};