Merging upstream version 1.72.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

16 files changed, 508 insertions, 144 deletions

diff --git a/vendor/libc/src/unix/linux_like/android/mod.rs b/vendor/libc/src/unix/linux_like/android/mod.rs
index fd4b0593b..c65e737e4 100644
--- a/vendor/libc/src/unix/linux_like/android/mod.rs
+++ b/vendor/libc/src/unix/linux_like/android/mod.rs
@@ -1441,12 +1441,26 @@ pub const SO_PEERSEC: ::c_int = 31;
 pub const SO_SNDBUFFORCE: ::c_int = 32;
 pub const SO_RCVBUFFORCE: ::c_int = 33;
 pub const SO_PASSSEC: ::c_int = 34;
+pub const SO_TIMESTAMPNS: ::c_int = 35;
+// pub const SO_TIMESTAMPNS_OLD: ::c_int = 35;
 pub const SO_MARK: ::c_int = 36;
+pub const SO_TIMESTAMPING: ::c_int = 37;
+// pub const SO_TIMESTAMPING_OLD: ::c_int = 37;
 pub const SO_PROTOCOL: ::c_int = 38;
 pub const SO_DOMAIN: ::c_int = 39;
 pub const SO_RXQ_OVFL: ::c_int = 40;
 pub const SO_PEEK_OFF: ::c_int = 42;
 pub const SO_BUSY_POLL: ::c_int = 46;
+pub const SCM_TIMESTAMPING_OPT_STATS: ::c_int = 54;
+pub const SCM_TIMESTAMPING_PKTINFO: ::c_int = 58;
+pub const SO_TIMESTAMP_NEW: ::c_int = 63;
+pub const SO_TIMESTAMPNS_NEW: ::c_int = 64;
+pub const SO_TIMESTAMPING_NEW: ::c_int = 65;
+
+// Defined in unix/linux_like/mod.rs
+// pub const SCM_TIMESTAMP: ::c_int = SO_TIMESTAMP;
+pub const SCM_TIMESTAMPNS: ::c_int = SO_TIMESTAMPNS;
+pub const SCM_TIMESTAMPING: ::c_int = SO_TIMESTAMPING;
 
 pub const IPTOS_ECN_NOTECT: u8 = 0x00;
 
@@ -1817,6 +1831,7 @@ pub const NLM_F_MULTI: ::c_int = 2;
 pub const NLM_F_ACK: ::c_int = 4;
 pub const NLM_F_ECHO: ::c_int = 8;
 pub const NLM_F_DUMP_INTR: ::c_int = 16;
+pub const NLM_F_DUMP_FILTERED: ::c_int = 32;
 
 pub const NLM_F_ROOT: ::c_int = 0x100;
 pub const NLM_F_MATCH: ::c_int = 0x200;
@@ -2466,8 +2481,7 @@ pub const IFF_PERSIST: ::c_int = 0x0800;
 pub const IFF_NOFILTER: ::c_int = 0x1000;
 
 // start android/platform/bionic/libc/kernel/uapi/linux/if_ether.h
-// from https://android.googlesource.com/
-// platform/bionic/+/master/libc/kernel/uapi/linux/if_ether.h
+// from https://android.googlesource.com/platform/bionic/+/HEAD/libc/kernel/uapi/linux/if_ether.h
 pub const ETH_ALEN: ::c_int = 6;
 pub const ETH_HLEN: ::c_int = 14;
 pub const ETH_ZLEN: ::c_int = 60;
@@ -2609,6 +2623,23 @@ pub const SIOCSIFMAP: ::c_ulong = 0x00008971;
 pub const MODULE_INIT_IGNORE_MODVERSIONS: ::c_uint = 0x0001;
 pub const MODULE_INIT_IGNORE_VERMAGIC: ::c_uint = 0x0002;
 
+// linux/net_tstamp.h
+pub const SOF_TIMESTAMPING_TX_HARDWARE: ::c_uint = 1 << 0;
+pub const SOF_TIMESTAMPING_TX_SOFTWARE: ::c_uint = 1 << 1;
+pub const SOF_TIMESTAMPING_RX_HARDWARE: ::c_uint = 1 << 2;
+pub const SOF_TIMESTAMPING_RX_SOFTWARE: ::c_uint = 1 << 3;
+pub const SOF_TIMESTAMPING_SOFTWARE: ::c_uint = 1 << 4;
+pub const SOF_TIMESTAMPING_SYS_HARDWARE: ::c_uint = 1 << 5;
+pub const SOF_TIMESTAMPING_RAW_HARDWARE: ::c_uint = 1 << 6;
+pub const SOF_TIMESTAMPING_OPT_ID: ::c_uint = 1 << 7;
+pub const SOF_TIMESTAMPING_TX_SCHED: ::c_uint = 1 << 8;
+pub const SOF_TIMESTAMPING_TX_ACK: ::c_uint = 1 << 9;
+pub const SOF_TIMESTAMPING_OPT_CMSG: ::c_uint = 1 << 10;
+pub const SOF_TIMESTAMPING_OPT_TSONLY: ::c_uint = 1 << 11;
+pub const SOF_TIMESTAMPING_OPT_STATS: ::c_uint = 1 << 12;
+pub const SOF_TIMESTAMPING_OPT_PKTINFO: ::c_uint = 1 << 13;
+pub const SOF_TIMESTAMPING_OPT_TX_SWHW: ::c_uint = 1 << 14;
+
 #[deprecated(
     since = "0.2.55",
     note = "ENOATTR is not available on Android; use ENODATA instead"
@@ -3384,7 +3415,13 @@ extern "C" {
     pub fn sendfile(
         out_fd: ::c_int,
         in_fd: ::c_int,
-        offset: *mut off_t,
+        offset: *mut ::off_t,
+        count: ::size_t,
+    ) -> ::ssize_t;
+    pub fn sendfile64(
+        out_fd: ::c_int,
+        in_fd: ::c_int,
+        offset: *mut ::off64_t,
         count: ::size_t,
     ) -> ::ssize_t;
     pub fn setfsgid(gid: ::gid_t) -> ::c_int;
@@ -3504,7 +3541,9 @@ extern "C" {
 
     pub fn gettid() -> ::pid_t;
 
+    /// Only available in API Version 28+
     pub fn getrandom(buf: *mut ::c_void, buflen: ::size_t, flags: ::c_uint) -> ::ssize_t;
+    pub fn getentropy(buf: *mut ::c_void, buflen: ::size_t) -> ::c_int;
 
     pub fn pthread_setname_np(thread: ::pthread_t, name: *const ::c_char) -> ::c_int;
 
@@ -3550,6 +3589,13 @@ extern "C" {
 
     pub fn sync();
     pub fn syncfs(fd: ::c_int) -> ::c_int;
+
+    pub fn memmem(
+        haystack: *const ::c_void,
+        haystacklen: ::size_t,
+        needle: *const ::c_void,
+        needlelen: ::size_t,
+    ) -> *mut ::c_void;
 }
 
 cfg_if! {
diff --git a/vendor/libc/src/unix/linux_like/linux/align.rs b/vendor/libc/src/unix/linux_like/linux/align.rs
index cd4bbc721..97f811dac 100644
--- a/vendor/libc/src/unix/linux_like/linux/align.rs
+++ b/vendor/libc/src/unix/linux_like/linux/align.rs
@@ -176,6 +176,17 @@ macro_rules! expand_align {
                 __res1: u8,
                 pub data: [u8; CANFD_MAX_DLEN],
             }
+
+            #[repr(align(8))]
+            #[allow(missing_debug_implementations)]
+            pub struct canxl_frame {
+                pub prio: canid_t,
+                pub flags: u8,
+                pub sdt: u8,
+                pub len: u16,
+                pub af: u32,
+                pub data: [u8; CANXL_MAX_DLEN],
+            }
         }
     };
 }
diff --git a/vendor/libc/src/unix/linux_like/linux/gnu/b64/loongarch64/align.rs b/vendor/libc/src/unix/linux_like/linux/gnu/b64/loongarch64/align.rs
index 4cae9c1c3..dc191f51f 100644
--- a/vendor/libc/src/unix/linux_like/linux/gnu/b64/loongarch64/align.rs
+++ b/vendor/libc/src/unix/linux_like/linux/gnu/b64/loongarch64/align.rs
@@ -17,10 +17,10 @@ s! {
 
     #[repr(align(16))]
     pub struct mcontext_t {
-        pub sc_pc: ::c_ulonglong,
-        pub sc_regs: [::c_ulonglong; 32],
-        pub sc_flags: ::c_ulong,
-        pub sc_extcontext: [u64; 0],
+        pub __pc: ::c_ulonglong,
+        pub __gregs: [::c_ulonglong; 32],
+        pub __flags: ::c_uint,
+        pub __extcontext: [::c_ulonglong; 0],
     }
 
     #[repr(align(8))]
diff --git a/vendor/libc/src/unix/linux_like/linux/gnu/b64/loongarch64/mod.rs b/vendor/libc/src/unix/linux_like/linux/gnu/b64/loongarch64/mod.rs
index af2825b60..ea59181bc 100644
--- a/vendor/libc/src/unix/linux_like/linux/gnu/b64/loongarch64/mod.rs
+++ b/vendor/libc/src/unix/linux_like/linux/gnu/b64/loongarch64/mod.rs
@@ -189,6 +189,21 @@ s! {
         __unused4: ::c_ulong,
         __unused5: ::c_ulong
     }
+
+    pub struct user_regs_struct {
+        pub regs: [u64; 32],
+        pub orig_a0: u64,
+        pub csr_era: u64,
+        pub csr_badv: u64,
+        pub reserved: [u64; 10],
+
+    }
+
+    pub struct user_fp_struct {
+        pub fpr: [u64; 32],
+        pub fcc: u64,
+        pub fcsr: u32,
+    }
 }
 
 pub const __SIZEOF_PTHREAD_CONDATTR_T: usize = 4;
@@ -549,7 +564,7 @@ pub const SYS_landlock_add_rule: ::c_long = 445;
 pub const SYS_landlock_restrict_self: ::c_long = 446;
 pub const SYS_process_mrelease: ::c_long = 448;
 pub const SYS_futex_waitv: ::c_long = 449;
-//pub const SYS_set_mempolicy_home_node: ::c_long = 450;
+pub const SYS_set_mempolicy_home_node: ::c_long = 450;
 
 pub const POSIX_FADV_DONTNEED: ::c_int = 4;
 pub const POSIX_FADV_NOREUSE: ::c_int = 5;
@@ -684,6 +699,8 @@ pub const ENOTRECOVERABLE: ::c_int = 131;
 pub const ERFKILL: ::c_int = 132;
 pub const EHWPOISON: ::c_int = 133;
 
+pub const MADV_SOFT_OFFLINE: ::c_int = 101;
+
 pub const MAP_NORESERVE: ::c_int = 0x4000;
 pub const MAP_ANONYMOUS: ::c_int = 0x0020;
 pub const MAP_ANON: ::c_int = 0x0020;
@@ -695,6 +712,7 @@ pub const MAP_POPULATE: ::c_int = 0x8000;
 pub const MAP_NONBLOCK: ::c_int = 0x10000;
 pub const MAP_STACK: ::c_int = 0x20000;
 pub const MAP_HUGETLB: ::c_int = 0x40000;
+pub const MAP_SYNC: ::c_int = 0x080000;
 pub const MCL_CURRENT: ::c_int = 0x0001;
 pub const MCL_FUTURE: ::c_int = 0x0002;
 pub const MCL_ONFAULT: ::c_int = 0x0004;
@@ -746,6 +764,8 @@ pub const PTRACE_GETFPXREGS: ::c_uint = 18;
 pub const PTRACE_SETFPXREGS: ::c_uint = 19;
 pub const PTRACE_GETREGS: ::c_uint = 12;
 pub const PTRACE_SETREGS: ::c_uint = 13;
+pub const PTRACE_SYSEMU: ::c_uint = 31;
+pub const PTRACE_SYSEMU_SINGLESTEP: ::c_uint = 32;
 
 pub const RTLD_DEEPBIND: ::c_int = 0x8;
 pub const RTLD_GLOBAL: ::c_int = 0x100;
@@ -846,6 +866,7 @@ pub const ECHOPRT: ::tcflag_t = 0x00000400;
 pub const ECHOCTL: ::tcflag_t = 0x00000200;
 pub const ISIG: ::tcflag_t = 0x00000001;
 pub const ICANON: ::tcflag_t = 0x00000002;
+pub const XCASE: ::tcflag_t = 0x00000004;
 pub const PENDIN: ::tcflag_t = 0x00004000;
 pub const NOFLSH: ::tcflag_t = 0x00000080;
 
diff --git a/vendor/libc/src/unix/linux_like/linux/gnu/mod.rs b/vendor/libc/src/unix/linux_like/linux/gnu/mod.rs
index e88ad4eb2..ba4664bf5 100644
--- a/vendor/libc/src/unix/linux_like/linux/gnu/mod.rs
+++ b/vendor/libc/src/unix/linux_like/linux/gnu/mod.rs
@@ -1302,6 +1302,9 @@ extern "C" {
         result: *mut *mut ::group,
     ) -> ::c_int;
 
+    pub fn putpwent(p: *const ::passwd, stream: *mut ::FILE) -> ::c_int;
+    pub fn putgrent(grp: *const ::group, stream: *mut ::FILE) -> ::c_int;
+
     pub fn sethostid(hostid: ::c_long) -> ::c_int;
 
     pub fn memfd_create(name: *const ::c_char, flags: ::c_uint) -> ::c_int;
diff --git a/vendor/libc/src/unix/linux_like/linux/mod.rs b/vendor/libc/src/unix/linux_like/linux/mod.rs
index 45a383b40..e52b3d3a8 100644
--- a/vendor/libc/src/unix/linux_like/linux/mod.rs
+++ b/vendor/libc/src/unix/linux_like/linux/mod.rs
@@ -61,11 +61,6 @@ impl ::Clone for fpos64_t {
 }
 
 s! {
-    pub struct rlimit64 {
-        pub rlim_cur: rlim64_t,
-        pub rlim_max: rlim64_t,
-    }
-
     pub struct glob_t {
         pub gl_pathc: ::size_t,
         pub gl_pathv: *mut *mut c_char,
@@ -685,6 +680,11 @@ s! {
     pub struct sctp_authinfo {
         pub auth_keynumber: ::__u16,
     }
+
+    pub struct rlimit64 {
+        pub rlim_cur: rlim64_t,
+        pub rlim_max: rlim64_t,
+    }
 }
 
 s_no_extra_traits! {
@@ -703,14 +703,6 @@ s_no_extra_traits! {
         pub d_name: [::c_char; 256],
     }
 
-    pub struct dirent64 {
-        pub d_ino: ::ino64_t,
-        pub d_off: ::off64_t,
-        pub d_reclen: ::c_ushort,
-        pub d_type: ::c_uchar,
-        pub d_name: [::c_char; 256],
-    }
-
     pub struct sockaddr_alg {
         pub salg_family: ::sa_family_t,
         pub salg_type: [::c_uchar; 14],
@@ -804,6 +796,14 @@ s_no_extra_traits! {
         pub tx_type: ::c_int,
         pub rx_filter: ::c_int,
     }
+
+    pub struct dirent64 {
+        pub d_ino: ::ino64_t,
+        pub d_off: ::off64_t,
+        pub d_reclen: ::c_ushort,
+        pub d_type: ::c_uchar,
+        pub d_name: [::c_char; 256],
+    }
 }
 
 s_no_extra_traits! {
@@ -3723,9 +3723,11 @@ pub const CAN_ERR_FLAG: canid_t = 0x20000000;
 pub const CAN_SFF_MASK: canid_t = 0x000007FF;
 pub const CAN_EFF_MASK: canid_t = 0x1FFFFFFF;
 pub const CAN_ERR_MASK: canid_t = 0x1FFFFFFF;
+pub const CANXL_PRIO_MASK: ::canid_t = CAN_SFF_MASK;
 
 pub const CAN_SFF_ID_BITS: ::c_int = 11;
 pub const CAN_EFF_ID_BITS: ::c_int = 29;
+pub const CANXL_PRIO_BITS: ::c_int = CAN_SFF_ID_BITS;
 
 pub const CAN_MAX_DLC: ::c_int = 8;
 pub const CAN_MAX_DLEN: usize = 8;
@@ -3735,10 +3737,26 @@ pub const CANFD_MAX_DLEN: usize = 64;
 pub const CANFD_BRS: ::c_int = 0x01;
 pub const CANFD_ESI: ::c_int = 0x02;
 
+pub const CANXL_MIN_DLC: ::c_int = 0;
+pub const CANXL_MAX_DLC: ::c_int = 2047;
+pub const CANXL_MAX_DLC_MASK: ::c_int = 0x07FF;
+pub const CANXL_MIN_DLEN: usize = 1;
+pub const CANXL_MAX_DLEN: usize = 2048;
+
+pub const CANXL_XLF: ::c_int = 0x80;
+pub const CANXL_SEC: ::c_int = 0x01;
+
 cfg_if! {
     if #[cfg(libc_align)] {
         pub const CAN_MTU: usize = ::mem::size_of::<can_frame>();
         pub const CANFD_MTU: usize = ::mem::size_of::<canfd_frame>();
+        pub const CANXL_MTU: usize = ::mem::size_of::<canxl_frame>();
+        // FIXME: use `core::mem::offset_of!` once that is available
+        // https://github.com/rust-lang/rfcs/pull/3308
+        // pub const CANXL_HDR_SIZE: usize = core::mem::offset_of!(canxl_frame, data);
+        pub const CANXL_HDR_SIZE: usize = 12;
+        pub const CANXL_MIN_MTU: usize = CANXL_HDR_SIZE + 64;
+        pub const CANXL_MAX_MTU: usize = CANXL_MTU;
     }
 }
 
@@ -3764,6 +3782,7 @@ pub const CAN_RAW_LOOPBACK: ::c_int = 3;
 pub const CAN_RAW_RECV_OWN_MSGS: ::c_int = 4;
 pub const CAN_RAW_FD_FRAMES: ::c_int = 5;
 pub const CAN_RAW_JOIN_FILTERS: ::c_int = 6;
+pub const CAN_RAW_XL_FRAMES: ::c_int = 7;
 
 // linux/can/j1939.h
 pub const SOL_CAN_J1939: ::c_int = SOL_CAN_BASE + CAN_J1939;
@@ -4280,21 +4299,8 @@ extern "C" {
     pub fn mprotect(addr: *mut ::c_void, len: ::size_t, prot: ::c_int) -> ::c_int;
     pub fn __errno_location() -> *mut ::c_int;
 
-    pub fn fopen64(filename: *const c_char, mode: *const c_char) -> *mut ::FILE;
-    pub fn freopen64(
-        filename: *const c_char,
-        mode: *const c_char,
-        file: *mut ::FILE,
-    ) -> *mut ::FILE;
-    pub fn tmpfile64() -> *mut ::FILE;
-    pub fn fgetpos64(stream: *mut ::FILE, ptr: *mut fpos64_t) -> ::c_int;
-    pub fn fsetpos64(stream: *mut ::FILE, ptr: *const fpos64_t) -> ::c_int;
-    pub fn fseeko64(stream: *mut ::FILE, offset: ::off64_t, whence: ::c_int) -> ::c_int;
-    pub fn ftello64(stream: *mut ::FILE) -> ::off64_t;
     pub fn fallocate(fd: ::c_int, mode: ::c_int, offset: ::off_t, len: ::off_t) -> ::c_int;
-    pub fn fallocate64(fd: ::c_int, mode: ::c_int, offset: ::off64_t, len: ::off64_t) -> ::c_int;
     pub fn posix_fallocate(fd: ::c_int, offset: ::off_t, len: ::off_t) -> ::c_int;
-    pub fn posix_fallocate64(fd: ::c_int, offset: ::off64_t, len: ::off64_t) -> ::c_int;
     pub fn readahead(fd: ::c_int, offset: ::off64_t, count: ::size_t) -> ::ssize_t;
     pub fn getxattr(
         path: *const c_char,
@@ -4595,12 +4601,6 @@ extern "C" {
         offset: *mut off_t,
         count: ::size_t,
     ) -> ::ssize_t;
-    pub fn sendfile64(
-        out_fd: ::c_int,
-        in_fd: ::c_int,
-        offset: *mut off64_t,
-        count: ::size_t,
-    ) -> ::ssize_t;
     pub fn sigsuspend(mask: *const ::sigset_t) -> ::c_int;
     pub fn getgrgid_r(
         gid: ::gid_t,
@@ -4852,6 +4852,40 @@ extern "C" {
     ) -> ::ssize_t;
 }
 
+// LFS64 extensions
+//
+// * musl has 64-bit versions only so aliases the LFS64 symbols to the standard ones
+cfg_if! {
+    if #[cfg(not(target_env = "musl"))] {
+        extern "C" {
+            pub fn fallocate64(
+                fd: ::c_int,
+                mode: ::c_int,
+                offset: ::off64_t,
+                len: ::off64_t
+            ) -> ::c_int;
+            pub fn fgetpos64(stream: *mut ::FILE, ptr: *mut fpos64_t) -> ::c_int;
+            pub fn fopen64(filename: *const c_char, mode: *const c_char) -> *mut ::FILE;
+            pub fn freopen64(
+                filename: *const c_char,
+                mode: *const c_char,
+                file: *mut ::FILE,
+            ) -> *mut ::FILE;
+            pub fn fseeko64(stream: *mut ::FILE, offset: ::off64_t, whence: ::c_int) -> ::c_int;
+            pub fn fsetpos64(stream: *mut ::FILE, ptr: *const fpos64_t) -> ::c_int;
+            pub fn ftello64(stream: *mut ::FILE) -> ::off64_t;
+            pub fn posix_fallocate64(fd: ::c_int, offset: ::off64_t, len: ::off64_t) -> ::c_int;
+            pub fn sendfile64(
+                out_fd: ::c_int,
+                in_fd: ::c_int,
+                offset: *mut off64_t,
+                count: ::size_t,
+            ) -> ::ssize_t;
+            pub fn tmpfile64() -> *mut ::FILE;
+        }
+    }
+}
+
 cfg_if! {
     if #[cfg(target_env = "uclibc")] {
         mod uclibc;
diff --git a/vendor/libc/src/unix/linux_like/linux/musl/b32/powerpc.rs b/vendor/libc/src/unix/linux_like/linux/musl/b32/powerpc.rs
index 3b998329b..b1669ade7 100644
--- a/vendor/libc/src/unix/linux_like/linux/musl/b32/powerpc.rs
+++ b/vendor/libc/src/unix/linux_like/linux/musl/b32/powerpc.rs
@@ -257,6 +257,9 @@ pub const MAP_STACK: ::c_int = 0x020000;
 pub const MAP_HUGETLB: ::c_int = 0x040000;
 pub const MAP_SYNC: ::c_int = 0x080000;
 
+pub const PTRACE_SYSEMU: ::c_int = 0x1d;
+pub const PTRACE_SYSEMU_SINGLESTEP: ::c_int = 0x1e;
+
 pub const SOCK_STREAM: ::c_int = 1;
 pub const SOCK_DGRAM: ::c_int = 2;
 pub const SOCK_SEQPACKET: ::c_int = 5;
diff --git a/vendor/libc/src/unix/linux_like/linux/musl/b32/riscv32/mod.rs b/vendor/libc/src/unix/linux_like/linux/musl/b32/riscv32/mod.rs
index 9ce6a9fd3..bf7a4f59c 100644
--- a/vendor/libc/src/unix/linux_like/linux/musl/b32/riscv32/mod.rs
+++ b/vendor/libc/src/unix/linux_like/linux/musl/b32/riscv32/mod.rs
@@ -184,22 +184,6 @@ s! {
         __pad1: ::c_ulong,
         __pad2: ::c_ulong,
     }
-
-    pub struct flock {
-        pub l_type: ::c_short,
-        pub l_whence: ::c_short,
-        pub l_start: ::off_t,
-        pub l_len: ::off_t,
-        pub l_pid: ::pid_t,
-    }
-
-    pub struct flock64 {
-        pub l_type: ::c_short,
-        pub l_whence: ::c_short,
-        pub l_start: ::off64_t,
-        pub l_len: ::off64_t,
-        pub l_pid: ::pid_t,
-    }
 }
 
 //pub const RLIM_INFINITY: ::rlim_t = !0;
diff --git a/vendor/libc/src/unix/linux_like/linux/musl/b32/x86/mod.rs b/vendor/libc/src/unix/linux_like/linux/musl/b32/x86/mod.rs
index c319b91b6..aaca917fa 100644
--- a/vendor/libc/src/unix/linux_like/linux/musl/b32/x86/mod.rs
+++ b/vendor/libc/src/unix/linux_like/linux/musl/b32/x86/mod.rs
@@ -456,6 +456,9 @@ pub const FLUSHO: ::tcflag_t = 0x00001000;
 pub const POLLWRNORM: ::c_short = 0x100;
 pub const POLLWRBAND: ::c_short = 0x200;
 
+pub const PTRACE_SYSEMU: ::c_int = 31;
+pub const PTRACE_SYSEMU_SINGLESTEP: ::c_int = 32;
+
 // Syscall table
 pub const SYS_restart_syscall: ::c_long = 0;
 pub const SYS_exit: ::c_long = 1;
diff --git a/vendor/libc/src/unix/linux_like/linux/musl/b64/powerpc64.rs b/vendor/libc/src/unix/linux_like/linux/musl/b64/powerpc64.rs
index 0bb4cf837..c9bd94135 100644
--- a/vendor/libc/src/unix/linux_like/linux/musl/b64/powerpc64.rs
+++ b/vendor/libc/src/unix/linux_like/linux/musl/b64/powerpc64.rs
@@ -173,6 +173,9 @@ pub const MAP_STACK: ::c_int = 0x020000;
 pub const MAP_HUGETLB: ::c_int = 0x040000;
 pub const MAP_SYNC: ::c_int = 0x080000;
 
+pub const PTRACE_SYSEMU: ::c_int = 0x1d;
+pub const PTRACE_SYSEMU_SINGLESTEP: ::c_int = 0x1e;
+
 pub const SOCK_STREAM: ::c_int = 1;
 pub const SOCK_DGRAM: ::c_int = 2;
 
diff --git a/vendor/libc/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs b/vendor/libc/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
index f354293e0..9e9dbf6c8 100644
--- a/vendor/libc/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
+++ b/vendor/libc/src/unix/linux_like/linux/musl/b64/riscv64/mod.rs
@@ -173,22 +173,6 @@ s! {
         __unused5: ::c_ulong,
         __unused6: ::c_ulong,
     }
-
-    pub struct flock {
-        pub l_type: ::c_short,
-        pub l_whence: ::c_short,
-        pub l_start: ::off_t,
-        pub l_len: ::off_t,
-        pub l_pid: ::pid_t,
-    }
-
-    pub struct flock64 {
-        pub l_type: ::c_short,
-        pub l_whence: ::c_short,
-        pub l_start: ::off64_t,
-        pub l_len: ::off64_t,
-        pub l_pid: ::pid_t,
-    }
 }
 
 pub const SYS_read: ::c_long = 63;
diff --git a/vendor/libc/src/unix/linux_like/linux/musl/b64/s390x.rs b/vendor/libc/src/unix/linux_like/linux/musl/b64/s390x.rs
index d7dcce615..f338dcc54 100644
--- a/vendor/libc/src/unix/linux_like/linux/musl/b64/s390x.rs
+++ b/vendor/libc/src/unix/linux_like/linux/musl/b64/s390x.rs
@@ -60,33 +60,33 @@ s! {
     }
 
     pub struct statfs {
-        pub f_type: ::c_ulong,
-        pub f_bsize: ::c_ulong,
+        pub f_type: ::c_uint,
+        pub f_bsize: ::c_uint,
         pub f_blocks: ::fsblkcnt_t,
         pub f_bfree: ::fsblkcnt_t,
         pub f_bavail: ::fsblkcnt_t,
         pub f_files: ::fsfilcnt_t,
         pub f_ffree: ::fsfilcnt_t,
         pub f_fsid: ::fsid_t,
-        pub f_namelen: ::c_ulong,
-        pub f_frsize: ::c_ulong,
-        pub f_flags: ::c_ulong,
-        pub f_spare: [::c_ulong; 4],
+        pub f_namelen: ::c_uint,
+        pub f_frsize: ::c_uint,
+        pub f_flags: ::c_uint,
+        pub f_spare: [::c_uint; 4],
     }
 
     pub struct statfs64 {
-        pub f_type: ::c_ulong,
-        pub f_bsize: ::c_ulong,
+        pub f_type: ::c_uint,
+        pub f_bsize: ::c_uint,
         pub f_blocks: ::fsblkcnt_t,
         pub f_bfree: ::fsblkcnt_t,
         pub f_bavail: ::fsblkcnt_t,
         pub f_files: ::fsfilcnt_t,
         pub f_ffree: ::fsfilcnt_t,
         pub f_fsid: ::fsid_t,
-        pub f_namelen: ::c_ulong,
-        pub f_frsize: ::c_ulong,
-        pub f_flags: ::c_ulong,
-        pub f_spare: [::c_ulong; 4],
+        pub f_namelen: ::c_uint,
+        pub f_frsize: ::c_uint,
+        pub f_flags: ::c_uint,
+        pub f_spare: [::c_uint; 4],
     }
 }
 
@@ -145,6 +145,7 @@ pub const ETIMEDOUT: ::c_int = 110;
 pub const O_APPEND: ::c_int = 1024;
 pub const O_CREAT: ::c_int = 64;
 pub const O_EXCL: ::c_int = 128;
+pub const O_LARGEFILE: ::c_int = 0x8000;
 pub const O_NONBLOCK: ::c_int = 2048;
 pub const SA_NOCLDWAIT: ::c_int = 2;
 pub const SA_ONSTACK: ::c_int = 0x08000000;
@@ -179,6 +180,9 @@ pub const MAP_STACK: ::c_int = 0x020000;
 pub const MAP_HUGETLB: ::c_int = 0x040000;
 pub const MAP_SYNC: ::c_int = 0x080000;
 
+pub const PTRACE_SYSEMU: ::c_int = 31;
+pub const PTRACE_SYSEMU_SINGLESTEP: ::c_int = 32;
+
 pub const EDEADLOCK: ::c_int = 35;
 pub const ENAMETOOLONG: ::c_int = 36;
 pub const ENOLCK: ::c_int = 37;
diff --git a/vendor/libc/src/unix/linux_like/linux/musl/b64/x86_64/mod.rs b/vendor/libc/src/unix/linux_like/linux/musl/b64/x86_64/mod.rs
index 8198dc2f3..9decf91bc 100644
--- a/vendor/libc/src/unix/linux_like/linux/musl/b64/x86_64/mod.rs
+++ b/vendor/libc/src/unix/linux_like/linux/musl/b64/x86_64/mod.rs
@@ -682,6 +682,9 @@ pub const O_RSYNC: ::c_int = 1052672;
 pub const O_DSYNC: ::c_int = 4096;
 pub const O_ASYNC: ::c_int = 0x2000;
 
+pub const PTRACE_SYSEMU: ::c_int = 31;
+pub const PTRACE_SYSEMU_SINGLESTEP: ::c_int = 32;
+
 pub const SIGSTKSZ: ::size_t = 8192;
 pub const MINSIGSTKSZ: ::size_t = 2048;
 
diff --git a/vendor/libc/src/unix/linux_like/linux/musl/lfs64.rs b/vendor/libc/src/unix/linux_like/linux/musl/lfs64.rs
new file mode 100644
index 000000000..27c1d2583
--- /dev/null
+++ b/vendor/libc/src/unix/linux_like/linux/musl/lfs64.rs
@@ -0,0 +1,241 @@
+#[inline]
+pub unsafe extern "C" fn creat64(path: *const ::c_char, mode: ::mode_t) -> ::c_int {
+    ::creat(path, mode)
+}
+
+#[inline]
+pub unsafe extern "C" fn fallocate64(
+    fd: ::c_int,
+    mode: ::c_int,
+    offset: ::off64_t,
+    len: ::off64_t,
+) -> ::c_int {
+    ::fallocate(fd, mode, offset, len)
+}
+
+#[inline]
+pub unsafe extern "C" fn fgetpos64(stream: *mut ::FILE, pos: *mut ::fpos64_t) -> ::c_int {
+    ::fgetpos(stream, pos as *mut _)
+}
+
+#[inline]
+pub unsafe extern "C" fn fopen64(pathname: *const ::c_char, mode: *const ::c_char) -> *mut ::FILE {
+    ::fopen(pathname, mode)
+}
+
+#[inline]
+pub unsafe extern "C" fn freopen64(
+    pathname: *const ::c_char,
+    mode: *const ::c_char,
+    stream: *mut ::FILE,
+) -> *mut ::FILE {
+    ::freopen(pathname, mode, stream)
+}
+
+#[inline]
+pub unsafe extern "C" fn fseeko64(
+    stream: *mut ::FILE,
+    offset: ::off64_t,
+    whence: ::c_int,
+) -> ::c_int {
+    ::fseeko(stream, offset, whence)
+}
+
+#[inline]
+pub unsafe extern "C" fn fsetpos64(stream: *mut ::FILE, pos: *const ::fpos64_t) -> ::c_int {
+    ::fsetpos(stream, pos as *mut _)
+}
+
+#[inline]
+pub unsafe extern "C" fn fstat64(fildes: ::c_int, buf: *mut ::stat64) -> ::c_int {
+    ::fstat(fildes, buf as *mut _)
+}
+
+#[inline]
+pub unsafe extern "C" fn fstatat64(
+    fd: ::c_int,
+    path: *const ::c_char,
+    buf: *mut ::stat64,
+    flag: ::c_int,
+) -> ::c_int {
+    ::fstatat(fd, path, buf as *mut _, flag)
+}
+
+#[inline]
+pub unsafe extern "C" fn fstatfs64(fd: ::c_int, buf: *mut ::statfs64) -> ::c_int {
+    ::fstatfs(fd, buf as *mut _)
+}
+
+#[inline]
+pub unsafe extern "C" fn fstatvfs64(fd: ::c_int, buf: *mut ::statvfs64) -> ::c_int {
+    ::fstatvfs(fd, buf as *mut _)
+}
+
+#[inline]
+pub unsafe extern "C" fn ftello64(stream: *mut ::FILE) -> ::off64_t {
+    ::ftello(stream)
+}
+
+#[inline]
+pub unsafe extern "C" fn ftruncate64(fd: ::c_int, length: ::off64_t) -> ::c_int {
+    ::ftruncate(fd, length)
+}
+
+#[inline]
+pub unsafe extern "C" fn getrlimit64(resource: ::c_int, rlim: *mut ::rlimit64) -> ::c_int {
+    ::getrlimit(resource, rlim as *mut _)
+}
+
+#[inline]
+pub unsafe extern "C" fn lseek64(fd: ::c_int, offset: ::off64_t, whence: ::c_int) -> ::off64_t {
+    ::lseek(fd, offset, whence)
+}
+
+#[inline]
+pub unsafe extern "C" fn lstat64(path: *const ::c_char, buf: *mut ::stat64) -> ::c_int {
+    ::lstat(path, buf as *mut _)
+}
+
+#[inline]
+pub unsafe extern "C" fn mmap64(
+    addr: *mut ::c_void,
+    length: ::size_t,
+    prot: ::c_int,
+    flags: ::c_int,
+    fd: ::c_int,
+    offset: ::off64_t,
+) -> *mut ::c_void {
+    ::mmap(addr, length, prot, flags, fd, offset)
+}
+
+// These functions are variadic in the C ABI since the `mode` argument is "optional".  Variadic
+// `extern "C"` functions are unstable in Rust so we cannot write a shim function for these
+// entrypoints.  See https://github.com/rust-lang/rust/issues/44930.
+//
+// These aliases are mostly fine though, neither function takes a LFS64-namespaced type as an
+// argument, nor do their names clash with any declared types.
+pub use open as open64;
+pub use openat as openat64;
+
+#[inline]
+pub unsafe extern "C" fn posix_fadvise64(
+    fd: ::c_int,
+    offset: ::off64_t,
+    len: ::off64_t,
+    advice: ::c_int,
+) -> ::c_int {
+    ::posix_fadvise(fd, offset, len, advice)
+}
+
+#[inline]
+pub unsafe extern "C" fn posix_fallocate64(
+    fd: ::c_int,
+    offset: ::off64_t,
+    len: ::off64_t,
+) -> ::c_int {
+    ::posix_fallocate(fd, offset, len)
+}
+
+#[inline]
+pub unsafe extern "C" fn pread64(
+    fd: ::c_int,
+    buf: *mut ::c_void,
+    count: ::size_t,
+    offset: ::off64_t,
+) -> ::ssize_t {
+    ::pread(fd, buf, count, offset)
+}
+
+#[inline]
+pub unsafe extern "C" fn preadv64(
+    fd: ::c_int,
+    iov: *const ::iovec,
+    iovcnt: ::c_int,
+    offset: ::off64_t,
+) -> ::ssize_t {
+    ::preadv(fd, iov, iovcnt, offset)
+}
+
+#[inline]
+pub unsafe extern "C" fn prlimit64(
+    pid: ::pid_t,
+    resource: ::c_int,
+    new_limit: *const ::rlimit64,
+    old_limit: *mut ::rlimit64,
+) -> ::c_int {
+    ::prlimit(pid, resource, new_limit as *mut _, old_limit as *mut _)
+}
+
+#[inline]
+pub unsafe extern "C" fn pwrite64(
+    fd: ::c_int,
+    buf: *const ::c_void,
+    count: ::size_t,
+    offset: ::off64_t,
+) -> ::ssize_t {
+    ::pwrite(fd, buf, count, offset)
+}
+
+#[inline]
+pub unsafe extern "C" fn pwritev64(
+    fd: ::c_int,
+    iov: *const ::iovec,
+    iovcnt: ::c_int,
+    offset: ::off64_t,
+) -> ::ssize_t {
+    ::pwritev(fd, iov, iovcnt, offset)
+}
+
+#[inline]
+pub unsafe extern "C" fn readdir64(dirp: *mut ::DIR) -> *mut ::dirent64 {
+    ::readdir(dirp) as *mut _
+}
+
+#[inline]
+pub unsafe extern "C" fn readdir64_r(
+    dirp: *mut ::DIR,
+    entry: *mut ::dirent64,
+    result: *mut *mut ::dirent64,
+) -> ::c_int {
+    ::readdir_r(dirp, entry as *mut _, result as *mut _)
+}
+
+#[inline]
+pub unsafe extern "C" fn sendfile64(
+    out_fd: ::c_int,
+    in_fd: ::c_int,
+    offset: *mut ::off64_t,
+    count: ::size_t,
+) -> ::ssize_t {
+    ::sendfile(out_fd, in_fd, offset, count)
+}
+
+#[inline]
+pub unsafe extern "C" fn setrlimit64(resource: ::c_int, rlim: *const ::rlimit64) -> ::c_int {
+    ::setrlimit(resource, rlim as *mut _)
+}
+
+#[inline]
+pub unsafe extern "C" fn stat64(pathname: *const ::c_char, statbuf: *mut ::stat64) -> ::c_int {
+    ::stat(pathname, statbuf as *mut _)
+}
+
+#[inline]
+pub unsafe extern "C" fn statfs64(pathname: *const ::c_char, buf: *mut ::statfs64) -> ::c_int {
+    ::statfs(pathname, buf as *mut _)
+}
+
+#[inline]
+pub unsafe extern "C" fn statvfs64(path: *const ::c_char, buf: *mut ::statvfs64) -> ::c_int {
+    ::statvfs(path, buf as *mut _)
+}
+
+#[inline]
+pub unsafe extern "C" fn tmpfile64() -> *mut ::FILE {
+    ::tmpfile()
+}
+
+#[inline]
+pub unsafe extern "C" fn truncate64(path: *const ::c_char, length: ::off64_t) -> ::c_int {
+    ::truncate(path, length)
+}
diff --git a/vendor/libc/src/unix/linux_like/linux/musl/mod.rs b/vendor/libc/src/unix/linux_like/linux/musl/mod.rs
index 37a8ca2af..4c6053389 100644
--- a/vendor/libc/src/unix/linux_like/linux/musl/mod.rs
+++ b/vendor/libc/src/unix/linux_like/linux/musl/mod.rs
@@ -22,8 +22,6 @@ pub type fsblkcnt_t = ::c_ulonglong;
 pub type fsfilcnt_t = ::c_ulonglong;
 pub type rlim_t = ::c_ulonglong;
 
-pub type flock64 = flock;
-
 cfg_if! {
     if #[cfg(doc)] {
         // Used in `linux::arch` to define ioctl constants.
@@ -189,6 +187,14 @@ s! {
         pub l_pid: ::pid_t,
     }
 
+    pub struct flock64 {
+        pub l_type: ::c_short,
+        pub l_whence: ::c_short,
+        pub l_start: ::off64_t,
+        pub l_len: ::off64_t,
+        pub l_pid: ::pid_t,
+    }
+
     pub struct regex_t {
         __re_nsub: ::size_t,
         __opaque: *mut ::c_void,
@@ -719,8 +725,6 @@ extern "C" {
         timeout: *mut ::timespec,
     ) -> ::c_int;
 
-    pub fn getrlimit64(resource: ::c_int, rlim: *mut ::rlimit64) -> ::c_int;
-    pub fn setrlimit64(resource: ::c_int, rlim: *const ::rlimit64) -> ::c_int;
     pub fn getrlimit(resource: ::c_int, rlim: *mut ::rlimit) -> ::c_int;
     pub fn setrlimit(resource: ::c_int, rlim: *const ::rlimit) -> ::c_int;
     pub fn prlimit(
@@ -729,13 +733,6 @@ extern "C" {
         new_limit: *const ::rlimit,
         old_limit: *mut ::rlimit,
     ) -> ::c_int;
-    pub fn prlimit64(
-        pid: ::pid_t,
-        resource: ::c_int,
-        new_limit: *const ::rlimit64,
-        old_limit: *mut ::rlimit64,
-    ) -> ::c_int;
-
     pub fn ioctl(fd: ::c_int, request: ::c_int, ...) -> ::c_int;
     pub fn gettimeofday(tp: *mut ::timeval, tz: *mut ::c_void) -> ::c_int;
     pub fn ptrace(request: ::c_int, ...) -> ::c_long;
@@ -784,6 +781,10 @@ extern "C" {
     pub fn basename(path: *mut ::c_char) -> *mut ::c_char;
 }
 
+// Alias <foo> to <foo>64 to mimic glibc's LFS64 support
+mod lfs64;
+pub use self::lfs64::*;
+
 cfg_if! {
     if #[cfg(any(target_arch = "x86_64",
                  target_arch = "aarch64",
diff --git a/vendor/libc/src/unix/linux_like/mod.rs b/vendor/libc/src/unix/linux_like/mod.rs
index b487da9fa..3117c18b8 100644
--- a/vendor/libc/src/unix/linux_like/mod.rs
+++ b/vendor/libc/src/unix/linux_like/mod.rs
@@ -918,6 +918,8 @@ pub const IPPROTO_BEETPH: ::c_int = 94;
 pub const IPPROTO_MPLS: ::c_int = 137;
 /// Multipath TCP
 pub const IPPROTO_MPTCP: ::c_int = 262;
+/// Ethernet-within-IPv6 encapsulation.
+pub const IPPROTO_ETHERNET: ::c_int = 143;
 
 pub const MCAST_EXCLUDE: ::c_int = 0;
 pub const MCAST_INCLUDE: ::c_int = 1;
@@ -1694,20 +1696,9 @@ extern "C" {
     pub fn setgroups(ngroups: ::size_t, ptr: *const ::gid_t) -> ::c_int;
     pub fn pipe2(fds: *mut ::c_int, flags: ::c_int) -> ::c_int;
     pub fn statfs(path: *const ::c_char, buf: *mut statfs) -> ::c_int;
-    pub fn statfs64(path: *const ::c_char, buf: *mut statfs64) -> ::c_int;
     pub fn fstatfs(fd: ::c_int, buf: *mut statfs) -> ::c_int;
-    pub fn fstatfs64(fd: ::c_int, buf: *mut statfs64) -> ::c_int;
-    pub fn statvfs64(path: *const ::c_char, buf: *mut statvfs64) -> ::c_int;
-    pub fn fstatvfs64(fd: ::c_int, buf: *mut statvfs64) -> ::c_int;
     pub fn memrchr(cx: *const ::c_void, c: ::c_int, n: ::size_t) -> *mut ::c_void;
-
     pub fn posix_fadvise(fd: ::c_int, offset: ::off_t, len: ::off_t, advise: ::c_int) -> ::c_int;
-    pub fn posix_fadvise64(
-        fd: ::c_int,
-        offset: ::off64_t,
-        len: ::off64_t,
-        advise: ::c_int,
-    ) -> ::c_int;
     pub fn futimens(fd: ::c_int, times: *const ::timespec) -> ::c_int;
     pub fn utimensat(
         dirfd: ::c_int,
@@ -1719,43 +1710,6 @@ extern "C" {
     pub fn freelocale(loc: ::locale_t);
     pub fn newlocale(mask: ::c_int, locale: *const ::c_char, base: ::locale_t) -> ::locale_t;
     pub fn uselocale(loc: ::locale_t) -> ::locale_t;
-    pub fn creat64(path: *const c_char, mode: mode_t) -> ::c_int;
-    pub fn fstat64(fildes: ::c_int, buf: *mut stat64) -> ::c_int;
-    pub fn fstatat64(
-        dirfd: ::c_int,
-        pathname: *const c_char,
-        buf: *mut stat64,
-        flags: ::c_int,
-    ) -> ::c_int;
-    pub fn ftruncate64(fd: ::c_int, length: off64_t) -> ::c_int;
-    pub fn lseek64(fd: ::c_int, offset: off64_t, whence: ::c_int) -> off64_t;
-    pub fn lstat64(path: *const c_char, buf: *mut stat64) -> ::c_int;
-    pub fn mmap64(
-        addr: *mut ::c_void,
-        len: ::size_t,
-        prot: ::c_int,
-        flags: ::c_int,
-        fd: ::c_int,
-        offset: off64_t,
-    ) -> *mut ::c_void;
-    pub fn open64(path: *const c_char, oflag: ::c_int, ...) -> ::c_int;
-    pub fn openat64(fd: ::c_int, path: *const c_char, oflag: ::c_int, ...) -> ::c_int;
-    pub fn pread64(fd: ::c_int, buf: *mut ::c_void, count: ::size_t, offset: off64_t) -> ::ssize_t;
-    pub fn pwrite64(
-        fd: ::c_int,
-        buf: *const ::c_void,
-        count: ::size_t,
-        offset: off64_t,
-    ) -> ::ssize_t;
-    pub fn readdir64(dirp: *mut ::DIR) -> *mut ::dirent64;
-    pub fn readdir64_r(
-        dirp: *mut ::DIR,
-        entry: *mut ::dirent64,
-        result: *mut *mut ::dirent64,
-    ) -> ::c_int;
-    pub fn stat64(path: *const c_char, buf: *mut stat64) -> ::c_int;
-    pub fn truncate64(path: *const c_char, length: off64_t) -> ::c_int;
-
     pub fn mknodat(
         dirfd: ::c_int,
         pathname: *const ::c_char,
@@ -1827,8 +1781,70 @@ extern "C" {
     pub fn strchrnul(s: *const ::c_char, c: ::c_int) -> *mut ::c_char;
 }
 
+// LFS64 extensions
+//
+// * musl has 64-bit versions only so aliases the LFS64 symbols to the standard ones
+// * ulibc doesn't have preadv64/pwritev64
 cfg_if! {
-    if #[cfg(not(target_env = "uclibc"))] {
+    if #[cfg(not(target_env = "musl"))] {
+        extern "C" {
+            pub fn fstatfs64(fd: ::c_int, buf: *mut statfs64) -> ::c_int;
+            pub fn statvfs64(path: *const ::c_char, buf: *mut statvfs64) -> ::c_int;
+            pub fn fstatvfs64(fd: ::c_int, buf: *mut statvfs64) -> ::c_int;
+            pub fn statfs64(path: *const ::c_char, buf: *mut statfs64) -> ::c_int;
+            pub fn creat64(path: *const c_char, mode: mode_t) -> ::c_int;
+            pub fn fstat64(fildes: ::c_int, buf: *mut stat64) -> ::c_int;
+            pub fn fstatat64(
+                dirfd: ::c_int,
+                pathname: *const c_char,
+                buf: *mut stat64,
+                flags: ::c_int,
+            ) -> ::c_int;
+            pub fn ftruncate64(fd: ::c_int, length: off64_t) -> ::c_int;
+            pub fn lseek64(fd: ::c_int, offset: off64_t, whence: ::c_int) -> off64_t;
+            pub fn lstat64(path: *const c_char, buf: *mut stat64) -> ::c_int;
+            pub fn mmap64(
+                addr: *mut ::c_void,
+                len: ::size_t,
+                prot: ::c_int,
+                flags: ::c_int,
+                fd: ::c_int,
+                offset: off64_t,
+            ) -> *mut ::c_void;
+            pub fn open64(path: *const c_char, oflag: ::c_int, ...) -> ::c_int;
+            pub fn openat64(fd: ::c_int, path: *const c_char, oflag: ::c_int, ...) -> ::c_int;
+            pub fn posix_fadvise64(
+                fd: ::c_int,
+                offset: ::off64_t,
+                len: ::off64_t,
+                advise: ::c_int,
+            ) -> ::c_int;
+            pub fn pread64(
+                fd: ::c_int,
+                buf: *mut ::c_void,
+                count: ::size_t,
+                offset: off64_t
+            ) -> ::ssize_t;
+            pub fn pwrite64(
+                fd: ::c_int,
+                buf: *const ::c_void,
+                count: ::size_t,
+                offset: off64_t,
+            ) -> ::ssize_t;
+            pub fn readdir64(dirp: *mut ::DIR) -> *mut ::dirent64;
+            pub fn readdir64_r(
+                dirp: *mut ::DIR,
+                entry: *mut ::dirent64,
+                result: *mut *mut ::dirent64,
+            ) -> ::c_int;
+            pub fn stat64(path: *const c_char, buf: *mut stat64) -> ::c_int;
+            pub fn truncate64(path: *const c_char, length: off64_t) -> ::c_int;
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(not(any(target_env = "uclibc", target_env = "musl")))] {
         extern "C" {
             pub fn preadv64(
                 fd: ::c_int,
@@ -1842,6 +1858,13 @@ cfg_if! {
                 iovcnt: ::c_int,
                 offset: ::off64_t,
             ) -> ::ssize_t;
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(not(target_env = "uclibc"))] {
+        extern "C" {
             // uclibc has separate non-const version of this function
             pub fn forkpty(
                 amaster: *mut ::c_int,